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Dr. Rosângela Bergamasco
Department of Chemical Engineering, State University of Maringá, Maringá-PR 8702900, Brazil

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0 Water Treatment
0 porous media
0 membrane separation processes
0 Coagulation/flocculation
0 Removal of emerging contaminants

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Coagulation/flocculation
Water Treatment
porous media
membrane separation processes

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Journal article
Published: 12 July 2021 in Environmental Technology
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Treatment of effluents from animal slaughterhouse industries is indispensable, standing out coagulation/flocculation/sedimentation processes. Bionanoparticles (BioNPs) (nanoparticles (NPs) functionalized with Moringa extracts (MO)) were studied as an alternative natural coagulant that would contribute to the microbial load reduction, without increasing the treated effluent toxicity. MO extracts were prepared with different salts, and then, in a kinetics study, different NPs mass and coagulant dosages were evaluated. In the best-defined conditions, microbial load, toxicity tests for the bioindicator Lactuca sativa, and NPs reuse evaluation were performed. Removals of 96.14% turbidity and 43.63% UV254nm were achieved when using 500 mg L-1 of BioNPs containing 60 mg of NPs for every 20 mL of MO extract prepared with 0.1 M CaCl2. The BioNPs with an external magnetic field also decreased the sedimentation time from 140 to 10 minutes compared to MO, and the process efficiency did not expressively decrease after reusing the recovered NPs. Through toxicity tests, BioNPs were not considered to leave residuals toxic to the Lactuca sativa in the treated effluent. Besides, the microbial load reduction was 97.33% for heterotrophic microorganisms and total mesophiles and 99.25% for molds/yeasts. Therefore, a satisfactory primary treatment was achieved, contributing to the sustainability of industries. GRAPHICAL ABSTRACT

ACS Style

Aline Dos Santos Antunes; Carina Contini Triques; Cleide Viviane Buzanello Martins; Gustavo Affonso Pisano Mateus; Rosangela Bergamasco; Márcia Regina Fagundes-Klen. Influence of bionanoparticles to treat a slaughterhouse wastewater. Environmental Technology 2021, 1 -38.

AMA Style

Aline Dos Santos Antunes, Carina Contini Triques, Cleide Viviane Buzanello Martins, Gustavo Affonso Pisano Mateus, Rosangela Bergamasco, Márcia Regina Fagundes-Klen. Influence of bionanoparticles to treat a slaughterhouse wastewater. Environmental Technology. 2021; ():1-38.

Chicago/Turabian Style

Aline Dos Santos Antunes; Carina Contini Triques; Cleide Viviane Buzanello Martins; Gustavo Affonso Pisano Mateus; Rosangela Bergamasco; Márcia Regina Fagundes-Klen. 2021. "Influence of bionanoparticles to treat a slaughterhouse wastewater." Environmental Technology , no. : 1-38.

Research article
Published: 08 July 2021 in Environmental Technology
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Safranin orange (SO) is a cationic dye widely used in industrial sectors. It becomes a threat to the aquatic ecosystem once it reaches water resources, directly affecting photosynthetic activity and dissolved oxygen rate. In view of this scenario and considering the large production of agro-industrial waste, which provides significant disposal costs and environmental impacts, the agricultural by-products such as mandarin peels (MP) are being used as biosorbent materials. Thus, this work proposed the use of MP for SO adsorption. The material was characterized by SEM, zeta potential, and FTIR analysis, in which it was possible to verify heterogeneous porous morphology, predominantly negative surface, and organic functional groups that facilitate adsorption. The results were promising, wherein the maximum adsorption capacity was 464 mg g–1 (318 K), 0.4 g L–1 adsorbent concentration, 120 min equilibrium time and removal percentage of 84.75%. The experimental data showed a better fit to the Langmuir and pseudo-second order mathematical models. The thermodynamic analysis inferred spontaneous, endothermic, and reversible character for SO adsorption onto MP. The main proposed adsorptive mechanisms were hydrogen bonds, π-interactions, and electrostatic interactions. In addition, the reuse of MP showed good efficiency since the adsorption capacity was maintained above 50% after four cycles (from 77.90 to 41.55 mg g–1). Moreover, when evaluating the effect of pH and ionic strength, it verified that the adsorption efficiency was not reduced. Therefore, when compared with other materials, the versatility and potential applicability of MP as a low-cost adsorbent for wastewater treatment is notable. GRAPHICAL ABSTRACT

ACS Style

Eduarda Freitas Diogo Januário; Taynara Basso Vidovix; Lennon Alonso de Araújo; Laiza Bergamasco Beltran; Rosângela Bergamasco; Angélica Marquetotti Salcedo Vieira. Investigation of Citrus reticulata peels as an efficient and low-cost adsorbent for the removal of safranin orange dye. Environmental Technology 2021, 1 -15.

AMA Style

Eduarda Freitas Diogo Januário, Taynara Basso Vidovix, Lennon Alonso de Araújo, Laiza Bergamasco Beltran, Rosângela Bergamasco, Angélica Marquetotti Salcedo Vieira. Investigation of Citrus reticulata peels as an efficient and low-cost adsorbent for the removal of safranin orange dye. Environmental Technology. 2021; ():1-15.

Chicago/Turabian Style

Eduarda Freitas Diogo Januário; Taynara Basso Vidovix; Lennon Alonso de Araújo; Laiza Bergamasco Beltran; Rosângela Bergamasco; Angélica Marquetotti Salcedo Vieira. 2021. "Investigation of Citrus reticulata peels as an efficient and low-cost adsorbent for the removal of safranin orange dye." Environmental Technology , no. : 1-15.

Research article
Published: 30 June 2021 in Parasitology
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ACS Style

Letícia Nishi; Raquel Arruda Da Silva Sanfelice; Bruna Taciane Da Silva Bortoleti; Fernanda Tomiotto-Pellissier; Taylon Felipe Silva; Fernanda Ferreira Evangelista; Danielle Lazarin-Bidóia; Idessania Nazareth Costa; Wander Rogério Pavanelli; Ivete Conchon Costa; Aline Takaoka Alves Baptista; Rosângela Bergamasco; Ana Lúcia Falavigna-Guilherme. Moringa oleifera extract promotes apoptosis-like death in Toxoplasma gondii tachyzoites in vitro. Parasitology 2021, 1 -35.

AMA Style

Letícia Nishi, Raquel Arruda Da Silva Sanfelice, Bruna Taciane Da Silva Bortoleti, Fernanda Tomiotto-Pellissier, Taylon Felipe Silva, Fernanda Ferreira Evangelista, Danielle Lazarin-Bidóia, Idessania Nazareth Costa, Wander Rogério Pavanelli, Ivete Conchon Costa, Aline Takaoka Alves Baptista, Rosângela Bergamasco, Ana Lúcia Falavigna-Guilherme. Moringa oleifera extract promotes apoptosis-like death in Toxoplasma gondii tachyzoites in vitro. Parasitology. 2021; ():1-35.

Chicago/Turabian Style

Letícia Nishi; Raquel Arruda Da Silva Sanfelice; Bruna Taciane Da Silva Bortoleti; Fernanda Tomiotto-Pellissier; Taylon Felipe Silva; Fernanda Ferreira Evangelista; Danielle Lazarin-Bidóia; Idessania Nazareth Costa; Wander Rogério Pavanelli; Ivete Conchon Costa; Aline Takaoka Alves Baptista; Rosângela Bergamasco; Ana Lúcia Falavigna-Guilherme. 2021. "Moringa oleifera extract promotes apoptosis-like death in Toxoplasma gondii tachyzoites in vitro." Parasitology , no. : 1-35.

Research article
Published: 08 May 2021 in Environmental Technology
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The development of new technologies for water and wastewater treatment is a growing need due to the occurrence of micropollutants, such as dyes, in water resources. In this sense, green-synthesized nanoparticles are being extensively studied, due to their low cost, non-toxicity, and high efficiency in adsorption processes. Thus, the present study reports the green synthesis of copper oxide nanoparticles (CuO-NP), obtained from pomegranate (Punica granatum) leaf extract, employed for the removal of Safranin-O (SO) dye. CuO-NP was characterized by physicochemical analysis. These analyzes suggested that the redox process occurred efficiently. Also, the material presented interesting elements for the removal of cationic dyes such as negative surface charge, high specific surface area, and predominance of mesopores. The kinetic data fitted the pseudo-second-order model, reaching equilibrium in 480 minutes. The equilibrium study resulted in a maximum adsorption capacity of 189.54 mg g-1 at 298 K and the experimental data best fitted the Langmuir model. The effect of pH and ionic strength did not present significant changes, which demonstrates an advantage of this adsorbent over other materials. The regeneration study allowed to verify the possibility of reuse CuO-NP, since after 4 cycles the adsorption capacity was 44% of the initial value. Considering the results found, CuO-NP has a high potential for applicability in the treatment of water contaminated by dyes. GRAPHICAL ABSTRACT

ACS Style

Taynara Basso Vidovix; Heloise Beatriz Quesada; Rosângela Bergamasco; Marcelo Fernandes Vieira; Angélica Marquetotti Salcedo Vieira. Adsorption of Safranin-O dye by copper oxide nanoparticles synthesized from Punica granatum leaf extract. Environmental Technology 2021, 1 -17.

AMA Style

Taynara Basso Vidovix, Heloise Beatriz Quesada, Rosângela Bergamasco, Marcelo Fernandes Vieira, Angélica Marquetotti Salcedo Vieira. Adsorption of Safranin-O dye by copper oxide nanoparticles synthesized from Punica granatum leaf extract. Environmental Technology. 2021; ():1-17.

Chicago/Turabian Style

Taynara Basso Vidovix; Heloise Beatriz Quesada; Rosângela Bergamasco; Marcelo Fernandes Vieira; Angélica Marquetotti Salcedo Vieira. 2021. "Adsorption of Safranin-O dye by copper oxide nanoparticles synthesized from Punica granatum leaf extract." Environmental Technology , no. : 1-17.

Journal article
Published: 01 March 2021 in Journal of Water Process Engineering
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The textile industry generates large amounts of effluents, often treated by coagulation/flocculation. The tannin-based coagulants produce a high-quality treated effluent and a more biodegradable sludge. Efforts have been made to reuse the sludge, however, the synthesis of hydrochars and activated hydrochars from this residue was never evaluated before. Therefore, this study aimed to produce a novel sludge-based adsorbent, through hydrothermal carbonization (HTC) and KHCO₃ activation, from real laundry wastewater treated with tannin (Tanfloc SG), in order to remove methylene blue (MB) from aqueous solutions. Tanfloc SG coagulant was more effective to reduce color and turbidity than chemical oxygen demand. The best coagulant concentration (140 mg L−1) was selected to produce sludge, the hydrochar (HC-S), and activated hydrochar (AHC-S). The characterization demonstrated that activation volatilized the organic matter, leaving coke and inorganic solids. However, despite the lower carbon content, AHC-S presented a notorious surface area (3005.57 m² g−1). Minerals were presented in the adsorbents and AHC-S showed graphene-like layers. Regarding MB adsorption, pseudo-second-order and Langmuir models fitted kinetic and equilibrium data, respectively. HC-S and AHC-S obtained qmax of 69.77 and 808.83 mg g−1, respectively, and the latter was higher than other activated hydrochars, demonstrating the potential of the adsorbent.

ACS Style

Fernanda Carla Camilo; Thiago Peixoto de Araújo; Heloise Beatriz Quesada; Alexandre Amado Moura; Murilo Pereira Moisés; Rosângela Bergamasco; Sergio Henrique Faria; Maria Angélica Simões Dornellas de Barros. Synthesis of hydrochars derived from industrial laundry sludge and its application in the removal of cationic dye. Journal of Water Process Engineering 2021, 40, 101999 .

AMA Style

Fernanda Carla Camilo, Thiago Peixoto de Araújo, Heloise Beatriz Quesada, Alexandre Amado Moura, Murilo Pereira Moisés, Rosângela Bergamasco, Sergio Henrique Faria, Maria Angélica Simões Dornellas de Barros. Synthesis of hydrochars derived from industrial laundry sludge and its application in the removal of cationic dye. Journal of Water Process Engineering. 2021; 40 ():101999.

Chicago/Turabian Style

Fernanda Carla Camilo; Thiago Peixoto de Araújo; Heloise Beatriz Quesada; Alexandre Amado Moura; Murilo Pereira Moisés; Rosângela Bergamasco; Sergio Henrique Faria; Maria Angélica Simões Dornellas de Barros. 2021. "Synthesis of hydrochars derived from industrial laundry sludge and its application in the removal of cationic dye." Journal of Water Process Engineering 40, no. : 101999.

Conference paper
Published: 01 January 2021 in Anais do(a) Anais do I Web Encontro Nacional de Engenharia Química
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Jayana Freitas Resende; Bruna Bruguer Ferri; Isabela Maria Reck; Rosangela Bergamasco; Marcelo Fernandes Vieira; Angélica Marquetotti Salcedo Vieira. AVALIACÃO DO GRAU DE INTUMESCIMENTO DE HIDROGÉIS NATURAIS SINTETIZADOS A PARTIR DAS PRINCIPAIS PROTEÍNAS DA SEMENTE DE MORINGA. Anais do(a) Anais do I Web Encontro Nacional de Engenharia Química 2021, 1 .

AMA Style

Jayana Freitas Resende, Bruna Bruguer Ferri, Isabela Maria Reck, Rosangela Bergamasco, Marcelo Fernandes Vieira, Angélica Marquetotti Salcedo Vieira. AVALIACÃO DO GRAU DE INTUMESCIMENTO DE HIDROGÉIS NATURAIS SINTETIZADOS A PARTIR DAS PRINCIPAIS PROTEÍNAS DA SEMENTE DE MORINGA. Anais do(a) Anais do I Web Encontro Nacional de Engenharia Química. 2021; ():1.

Chicago/Turabian Style

Jayana Freitas Resende; Bruna Bruguer Ferri; Isabela Maria Reck; Rosangela Bergamasco; Marcelo Fernandes Vieira; Angélica Marquetotti Salcedo Vieira. 2021. "AVALIACÃO DO GRAU DE INTUMESCIMENTO DE HIDROGÉIS NATURAIS SINTETIZADOS A PARTIR DAS PRINCIPAIS PROTEÍNAS DA SEMENTE DE MORINGA." Anais do(a) Anais do I Web Encontro Nacional de Engenharia Química , no. : 1.

Journal article
Published: 28 December 2020 in Industrial Crops and Products
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Because Diclofenac potassium (DCF-p) is a drug that is easily accessible and widely consumed worldwide, it is often identified in water monitoring samples. Wastewater treatment has not been able to remove it completely, and for this reason traces reach the surface and groundwater, causing an impact on non-target organisms. In this sense, adsorption is highlighted as a simple and usually efficient process. Soybean hulls are residues generated in large quantities, often disposed of in landfills. For this reason, their use as adsorbent becomes interesting. However, no study to date has evaluated modifications of such residue in order to remove drugs from water. Thus, the objective of this study was to evaluate the adsorption capacity of the soybean hulls after chemical and thermal treatment in the removal of DCF-p. In the adsorption tests, it was found that the increase in pH from 5 to 9 caused a small reduction in the adsorption capacity, however the effect of the ionic strength showed that the dissolved salt ions acted as co-adsorbents, favoring adsorption. Kinetic data demonstrated rapid adsorption, with equilibrium at 180 min and adsorption capacity of 17.27 mg g−1. The experimental data adjusted to the pseudo-first-order model, and the intraparticle diffusion model suggested a multi-stage process. The adsorption isotherms were adjusted to the Sips model, revealing a maximum adsorption capacity of 96.88 mg g−1 at 308 K. The thermodynamic parameters indicated a spontaneous and favorable process for all temperatures studied, with an exothermic reaction controlled by physisorption. Lastly, it was found that the adsorption of DCF-p occurred by π-π interaction and hydrogen bonds.

ACS Style

Renata Mariane de Souza; Heloise Beatriz Quesada; Luís Fernando Cusioli; Márcia Regina Fagundes-Klen; Rosângela Bergamasco. Adsorption of non-steroidal anti-inflammatory drug (NSAID) by agro-industrial by-product with chemical and thermal modification: Adsorption studies and mechanism. Industrial Crops and Products 2020, 161, 113200 .

AMA Style

Renata Mariane de Souza, Heloise Beatriz Quesada, Luís Fernando Cusioli, Márcia Regina Fagundes-Klen, Rosângela Bergamasco. Adsorption of non-steroidal anti-inflammatory drug (NSAID) by agro-industrial by-product with chemical and thermal modification: Adsorption studies and mechanism. Industrial Crops and Products. 2020; 161 ():113200.

Chicago/Turabian Style

Renata Mariane de Souza; Heloise Beatriz Quesada; Luís Fernando Cusioli; Márcia Regina Fagundes-Klen; Rosângela Bergamasco. 2020. "Adsorption of non-steroidal anti-inflammatory drug (NSAID) by agro-industrial by-product with chemical and thermal modification: Adsorption studies and mechanism." Industrial Crops and Products 161, no. : 113200.

Research article
Published: 20 December 2020 in Environmental Technology
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A distributed parameter model and two lumped parameter models were used in order to find the rate-limiting step in the adsorption process of a herbicide (Diuron) by Moringa oleifera husks, a possible low-cost adsorbent. For that, 4 kinetics assays, differentiated by the initial Diuron concentration, were performed. Langmuir isotherm well represented the equilibrium data and through this evaluation, Moringa husks proved to be a potential adsorbent for Diuron removal from water. The internal mass transfer resistance, analyzed as a distributed parameter model, was found to better represent the experimental data. This fact enabled the simulation of the process according to the variation of time and space, what contributed to the better understanding of the adsorption process.

ACS Style

Gessica Wernke; Carina Contini Triques; Pedro Yahico Ramos Suzaki; Márcia Regina Fagundes-Klen; Rosângela Bergamasco. Analysis of herbicide biosorption by means of a phenomenological mathematical distributed parameter model. Environmental Technology 2020, 1 -8.

AMA Style

Gessica Wernke, Carina Contini Triques, Pedro Yahico Ramos Suzaki, Márcia Regina Fagundes-Klen, Rosângela Bergamasco. Analysis of herbicide biosorption by means of a phenomenological mathematical distributed parameter model. Environmental Technology. 2020; ():1-8.

Chicago/Turabian Style

Gessica Wernke; Carina Contini Triques; Pedro Yahico Ramos Suzaki; Márcia Regina Fagundes-Klen; Rosângela Bergamasco. 2020. "Analysis of herbicide biosorption by means of a phenomenological mathematical distributed parameter model." Environmental Technology , no. : 1-8.

Journal article
Published: 10 December 2020 in Journal of Environmental Chemical Engineering
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Chichá-do-cerrado (Sterculia Striata St. Hil. et Naud) is a Brazilian native plant whose nuts have interesting nutritional value. However, the fruit shells (CH) have never been evaluated for potential uses. This study aimed to characterize the biochar (BC-CH) and the activated carbons synthesized by chemical (K-CH) and physical (C-CH) processes. The activated carbons were evaluated on metformin adsorption and treatment of a synthetic mixture. Pyrolysis increased the carbon content and the H/C ratio indicated higher aromatization for C-CH. BC-CH presented low surface area, which was increased mainly with KOH activation (1273.6 m² g-1). FTIR demonstrated the degradation of lignocellulosic compounds and zeta potential inferred a higher number of oxygenated groups for C-CH. Regarding the adsorption studies, the kinetics demonstrated an equilibrium time of 60 min and the isotherm resulted in a maximum experimental adsorption capacity of 33.75 and 45.50 mg L-1 for C-CH and K-CH, respectively. Interestingly, C-CH presented the highest removal percentage of the synthetic mixture, indicating the role of Cu (II) interactions and synergistic effects. In summary, it was verified the potential of the adsorbents in wastewater treatment, and the importance of evaluating the composition of the aqueous matrix, which can alter the adsorption mechanisms.

ACS Style

Heloise Beatriz Quesada; Thiago Peixoto de Araújo; Luís Fernando Cusioli; Maria Angélica Simões Dornellas de Barros; Raquel Guttierres Gomes; Rosângela Bergamasco. Evaluation of novel activated carbons from chichá-do-cerrado (Sterculia striata St. Hil. et Naud) fruit shells on metformin adsorption and treatment of a synthetic mixture. Journal of Environmental Chemical Engineering 2020, 9, 104914 .

AMA Style

Heloise Beatriz Quesada, Thiago Peixoto de Araújo, Luís Fernando Cusioli, Maria Angélica Simões Dornellas de Barros, Raquel Guttierres Gomes, Rosângela Bergamasco. Evaluation of novel activated carbons from chichá-do-cerrado (Sterculia striata St. Hil. et Naud) fruit shells on metformin adsorption and treatment of a synthetic mixture. Journal of Environmental Chemical Engineering. 2020; 9 (1):104914.

Chicago/Turabian Style

Heloise Beatriz Quesada; Thiago Peixoto de Araújo; Luís Fernando Cusioli; Maria Angélica Simões Dornellas de Barros; Raquel Guttierres Gomes; Rosângela Bergamasco. 2020. "Evaluation of novel activated carbons from chichá-do-cerrado (Sterculia striata St. Hil. et Naud) fruit shells on metformin adsorption and treatment of a synthetic mixture." Journal of Environmental Chemical Engineering 9, no. 1: 104914.

Remediation treatment
Published: 14 October 2020 in Environmental Progress & Sustainable Energy
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The use of Moringa oleifera (MO) seeds has been the subject of studies to treat water and effluents due to its biocoagulant potential. However, one of the factors that prevent its use at an industrial level is its short shelf life after preparation. In view of this problem, the present study aimed to produce an MO biocoagulant for pre‐treatment via the lyophilization method, to prolong the shelf life of the extract. After optimizing the evaluated preparation conditions (2.38 g of MO for 100 mL of distilled water in 4 minutes of ultrasound extraction) in synthetic wastewater (using the commercial blue 5G dye), the biocoagulant was produced. Using different salt concentrations (NaCl and KCl) with the goal of improving the extraction, the produced biocoagulant was lyophilized, stored and assessed monthly in a comparative study with the inorganic aluminum sulfate coagulant apply to a textile laundry effluent. Although the biocoagulant produced is less efficient than conventional inorganic ones, the performance evaluation proved to be very satisfactory, obtaining 67.13% color removal and 91.98% turbidity for MO, which when compared to aluminum sulfate achieved removal rates of 81.45% and 92%, respectively. Thus, it is presented as a great alternative for pre‐textile wastewater treatment.

ACS Style

Bruna Souza Dos Santos; Eduardo Eyng; Ilton José Baraldi; Laercio Mantovani Frare; Gustavo Affonso Pisano Mateus; Rosangela Bergamasco; Marcia Regina Fagundes‐Klen; Poliana Ferreira Da Costa. Life performance evaluation of lyophilized Moringa biocoagulant: An alternative for prolonging the biocoagulant efficiency. Environmental Progress & Sustainable Energy 2020, 40, 1 .

AMA Style

Bruna Souza Dos Santos, Eduardo Eyng, Ilton José Baraldi, Laercio Mantovani Frare, Gustavo Affonso Pisano Mateus, Rosangela Bergamasco, Marcia Regina Fagundes‐Klen, Poliana Ferreira Da Costa. Life performance evaluation of lyophilized Moringa biocoagulant: An alternative for prolonging the biocoagulant efficiency. Environmental Progress & Sustainable Energy. 2020; 40 (3):1.

Chicago/Turabian Style

Bruna Souza Dos Santos; Eduardo Eyng; Ilton José Baraldi; Laercio Mantovani Frare; Gustavo Affonso Pisano Mateus; Rosangela Bergamasco; Marcia Regina Fagundes‐Klen; Poliana Ferreira Da Costa. 2020. "Life performance evaluation of lyophilized Moringa biocoagulant: An alternative for prolonging the biocoagulant efficiency." Environmental Progress & Sustainable Energy 40, no. 3: 1.

Journal article
Published: 05 October 2020 in Journal of Hazardous Materials
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Exposure to the herbicide Diuron may cause many undesirable effects on human health, leading to an increasing concern to preserve the quality of water intended for consumption. Therefore, the present study evaluated the removal of this contaminant in a gravitational filtration system, using different types of activated carbon fiber felt (ACFF) supported on the microfiltration membrane. The properties of the ACFF samples were investigated by X-Ray diffraction (XRD), Raman spectroscopy, Nitrogen adsorption assays, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM) and zeta potential analysis. The characterizations suggested that ACFF could be appropriate to remove Diuron in aqueous solutions. Among samples, the one denominated as ACFF-CO2(200)H2O showed the best performance during the permeation tests. In the first filtration cycle, the system took about 530 minutes to reach the saturation point (removal ceased), and 190 minutes for the second cycle. Along the process, the contaminant solution fluxes were higher than 100 L h– 1 m2 and reached an average final removal of ~ 50%. These results were excellent, as the proposed treatment consists of a simple gravitational filtration system, easy to operate, and low-cost.

ACS Style

Natália De Camargo Lima Beluci; Tássia Rhuna Tonial dos Santos; Jossano Saldanha Marcuzzo; Rosangela Bergamasco. Facile filtration system to remove Diuron in aqueous solutions. Journal of Hazardous Materials 2020, 404, 124163 .

AMA Style

Natália De Camargo Lima Beluci, Tássia Rhuna Tonial dos Santos, Jossano Saldanha Marcuzzo, Rosangela Bergamasco. Facile filtration system to remove Diuron in aqueous solutions. Journal of Hazardous Materials. 2020; 404 ():124163.

Chicago/Turabian Style

Natália De Camargo Lima Beluci; Tássia Rhuna Tonial dos Santos; Jossano Saldanha Marcuzzo; Rosangela Bergamasco. 2020. "Facile filtration system to remove Diuron in aqueous solutions." Journal of Hazardous Materials 404, no. : 124163.

Original research
Published: 29 August 2020 in Food and Bioprocess Technology
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Food-related diseases are a major challenge for public health and economic development, in which Staphylococcus aureus is often associated. The present study aimed to evaluate the effect of Moringa oleifera (MO) leaves against the biofilm and polysaccharide slime produced by two bacterial strains, S. aureus ATCC 25923 and S. aureus isolated from the dairy industry environment, on PVC surface. Inhibition of biofilm formation was observed within 15 min of treatment. Also, mature biofilms were significantly inhibited within less than 1 h of treatment. After 24 h of treatment, 99% of biofilm formation was inhibited for both S. aureus strains, with a reduction of 7 log CFU/cm2. As expected, 70% and 40% of polysaccharide slime formed by both S. aureus ATCC 25923 and the environmental strain reduced within 15 min and 30 min of treatment, respectively, reaching 99% reduction after 24 h of treatment with MO. Scanning electron microscopy images revealed the anti-biofilm potential effect of MO extract on the regular and irregular regions of the PVC surface. MO has proven to be effective in the control of biofilm formation by S. aureus on PVC surfaces; thus, it may be used as a sanitizer candidate in industrial surfaces.

ACS Style

Alessandra Marjorie De Oliveira; Benício Alves De Abreu Filho; Fátima De Jesus Bassetti; Rosangela Bergamasco; Raquel Guttierres Gomes. Natural Extract of Moringa oleifera Leaves Promoting Control of Staphylococcus aureus strains biofilm on PVC surface. Food and Bioprocess Technology 2020, 1 -16.

AMA Style

Alessandra Marjorie De Oliveira, Benício Alves De Abreu Filho, Fátima De Jesus Bassetti, Rosangela Bergamasco, Raquel Guttierres Gomes. Natural Extract of Moringa oleifera Leaves Promoting Control of Staphylococcus aureus strains biofilm on PVC surface. Food and Bioprocess Technology. 2020; ():1-16.

Chicago/Turabian Style

Alessandra Marjorie De Oliveira; Benício Alves De Abreu Filho; Fátima De Jesus Bassetti; Rosangela Bergamasco; Raquel Guttierres Gomes. 2020. "Natural Extract of Moringa oleifera Leaves Promoting Control of Staphylococcus aureus strains biofilm on PVC surface." Food and Bioprocess Technology , no. : 1-16.

Review
Published: 15 August 2020 in International Journal of Biological Macromolecules
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Activated carbon (AC) is widely used in water treatment, however, it has some technical disadvantages, such as its high cost and difficulty to recover. To overcome these drawbacks, AC particles have been encapsulated within a polymeric support, mainly chitosan and alginate-based. The use of these biological macromolecules results in composites with lower-cost, superior mechanical properties, and higher number of functional groups, advantages that have been attracted the attention of the scientific community. However, the number of publications is relatively low, demonstrating an important research gap yet to be investigated. Thus, this paper aims to review the recent studies concerning the use of chitosan, alginate and other macromolecules as AC immobilizing agents, describing the synthesis methods, characterization analyses and adsorption studies, focusing on the main advantages, disadvantages, gaps and future perspectives. Throughout the review it was verified that the composites were able to remove several water contaminants, mainly dyes and heavy metals, with high efficiency. Synergistic effects were detected, indicating the role of both polymers and AC, which increased the spectrum of contaminants capable of being adsorbed. Finally, it was observed a gap in column experiments, suggesting that future studies are essential to elucidate the applications in the industrial perspective.

ACS Style

Heloise Beatriz Quesada; Thiago Peixoto de Araújo; Daniel Tait Vareschini; Maria Angélica Simões Dornellas de Barros; Raquel Guttierres Gomes; Rosângela Bergamasco. Chitosan, alginate and other macromolecules as activated carbon immobilizing agents: A review on composite adsorbents for the removal of water contaminants. International Journal of Biological Macromolecules 2020, 164, 2535 -2549.

AMA Style

Heloise Beatriz Quesada, Thiago Peixoto de Araújo, Daniel Tait Vareschini, Maria Angélica Simões Dornellas de Barros, Raquel Guttierres Gomes, Rosângela Bergamasco. Chitosan, alginate and other macromolecules as activated carbon immobilizing agents: A review on composite adsorbents for the removal of water contaminants. International Journal of Biological Macromolecules. 2020; 164 ():2535-2549.

Chicago/Turabian Style

Heloise Beatriz Quesada; Thiago Peixoto de Araújo; Daniel Tait Vareschini; Maria Angélica Simões Dornellas de Barros; Raquel Guttierres Gomes; Rosângela Bergamasco. 2020. "Chitosan, alginate and other macromolecules as activated carbon immobilizing agents: A review on composite adsorbents for the removal of water contaminants." International Journal of Biological Macromolecules 164, no. : 2535-2549.

Remediation treatment
Published: 28 July 2020 in Environmental Progress & Sustainable Energy
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E. coli is often used as a faecal indicator bacterium to evaluate water quality and is used as a measure to predict the presence of pathogens and their inactivation/removal is important to ensure safe drinking water. In this study γ–Fe2O3 nanoparticles were synthesized by a modified sol‐gel method, followed by a subsequent functionalization process with Moringa oleifera (MO) integral seed extract and without ethanol‐extracted oil (MO‐et) for the creation of a new coagulants with antibacterial activity (γ–Fe2O3–MO and γ–Fe2O3–MO(et)). These coagulants were characterized according to their composition, morphology, structure and surface charge. Coagulation/flocculation tests were performed with subsequent sedimentation under the influence of an external magnetic field for E. coli inactivation/removal. The results indicate that there was total inactivation of E.coli for raw water and removal of 88% and 93% for synthetic water using the coagulants γ–Fe2O3–MO and γ–Fe2O3–MO (et) respectively, demonstrating that the coagulant properties of MO and the superparamagnetic behavior of nanoparticles of γ‐Fe2O3 increased the activity of the new material, favoring the inactivation/removal of E. coli in the water treatment. This article is protected by copyright. All rights reserved.

ACS Style

Tássia Rhuna Tonial dos Santos; Gustavo Affonso Pisano Mateus; Murilo Barbosa de Andrade; Ana Carolina Sestito Guerra; Angélica Marquetotti Salcedo Vieira; Rosângela Bergamasco. A simple and effective method for Escherichia coli inactivation in aqueous medium using natural based superparamagnetic coagulant. Environmental Progress & Sustainable Energy 2020, 40, 1 .

AMA Style

Tássia Rhuna Tonial dos Santos, Gustavo Affonso Pisano Mateus, Murilo Barbosa de Andrade, Ana Carolina Sestito Guerra, Angélica Marquetotti Salcedo Vieira, Rosângela Bergamasco. A simple and effective method for Escherichia coli inactivation in aqueous medium using natural based superparamagnetic coagulant. Environmental Progress & Sustainable Energy. 2020; 40 (2):1.

Chicago/Turabian Style

Tássia Rhuna Tonial dos Santos; Gustavo Affonso Pisano Mateus; Murilo Barbosa de Andrade; Ana Carolina Sestito Guerra; Angélica Marquetotti Salcedo Vieira; Rosângela Bergamasco. 2020. "A simple and effective method for Escherichia coli inactivation in aqueous medium using natural based superparamagnetic coagulant." Environmental Progress & Sustainable Energy 40, no. 2: 1.

Journal article
Published: 06 July 2020 in Ambiente e Agua - An Interdisciplinary Journal of Applied Science
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The main objective of this study was to synthesize a nanocomposite using graphene and manganese ferrite nanoparticles (MnFe2O4-G) and to evaluate its antibacterial activity for water treatment purposes. Its morphological characteristics were evaluated by instrumental techniques, such as scanning electron microscopy and transmission electron microscopy. The characterization results indicated that the nanocomposite presented nanoparticles of approximately 25 nm well dispersed in transparent and large (14 μm) graphene nanosheets. The antibacterial activity was evaluated in a batch experiment using a concentration of 40 μg mL-1 of nanocomposite (MnFe2O4-G, bare MnFe2O4 nanoparticles or graphene oxide), 1x105 CFU mL-1 of Escherichia coli, and 8 h of contact time at room temperature. The highest antibacterial capacity was observed for the hybrid nanocomposite (91.91%), due to the synergic effect of graphene and MnFe2O4 nanoparticles. Various mechanisms were proposed to explain the effective antibacterial activity of MnFe2O4-G, such as wrapping, oxidative stress, sharp-edge cutting effect, among others. The results showed that MnFe2O4-G is a potential alternative in water treatment processes as an antibacterial agent.

ACS Style

Lara De Souza Soletti; Maria Eliana Camargo Ferreira; Alex Toshio Kassada; Benício Alves De Abreu Filho; Rosangela Bergamasco; Natália Ueda Yamaguchi. Manganese ferrite graphene nanocomposite synthesis and the investigation of its antibacterial properties for water treatment purposes. Ambiente e Agua - An Interdisciplinary Journal of Applied Science 2020, 15, 1 .

AMA Style

Lara De Souza Soletti, Maria Eliana Camargo Ferreira, Alex Toshio Kassada, Benício Alves De Abreu Filho, Rosangela Bergamasco, Natália Ueda Yamaguchi. Manganese ferrite graphene nanocomposite synthesis and the investigation of its antibacterial properties for water treatment purposes. Ambiente e Agua - An Interdisciplinary Journal of Applied Science. 2020; 15 (4):1.

Chicago/Turabian Style

Lara De Souza Soletti; Maria Eliana Camargo Ferreira; Alex Toshio Kassada; Benício Alves De Abreu Filho; Rosangela Bergamasco; Natália Ueda Yamaguchi. 2020. "Manganese ferrite graphene nanocomposite synthesis and the investigation of its antibacterial properties for water treatment purposes." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 15, no. 4: 1.

Journal article
Published: 15 June 2020 in Journal of Environmental Chemical Engineering
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Magnetic materials can be considered as promising catalysts for the degradation of various organic pollutants in wastewater treatment as they can be easily separated with visible light response. The purpose of this research was to develop a highly efficient photocatalyst in decomposing methylene blue (MB) was synthesized using MnFe2O4 nanoparticles supported on graphene sand composite (MnFe2O4-GSC), resulting in an easily, magnetically separable and recyclable photocatalyst. MnFe2O4-GSC was prepared by a solvothermal methodology using commercial sand, graphene oxide (GO) and metal ions (Fe3+ and Mn2+) as precursor materials. The photocatalyst was characterized by scanning electron microscopy, X-ray diffraction, differential reflectance spectroscopy, transmission electron microscopy, Fourier-transform infrared spectroscopy and zeta potential analysis. The results indicated that MnFe2O4 had a spherical shape with uniform size of about 200 nm were successfully loaded and dispersed on the graphene nanosheets and on the sand’s surface. The photocatalytic performance of MnFe2O4-GSC for MB degradation under visible light irradiation was investigated with different reaction conditions, H2O2 concentration, catalyst dosage and pH. The use of the MnFe2O4-GSC as a heterogeneous photocatalyst achieved 100 % degradation of 10 mg L−1 of MB solution at natural pH (pH 7.65) in the presence of 5 mL of H2O2 and 180 min of contact time. In cyclic photodegradation experiments, the performance of MnFe2O4-GSC was stable and practically unchanged regarding its efficiency after five runs. Thus, this research provided a promising strategy for designing efficient and magnetically recyclable photocatalysts for decontamination of dye wastewater under visible light irradiation.

ACS Style

Andressa Jenifer Rubio Luciano; Lara De Sousa Soletti; Maria Eliana Camargo Ferreira; Luís Fernando Cusioli; Murilo Barbosa de Andrade; Rosângela Bergamasco; Natália Ueda Yamaguchi. Manganese ferrite dispersed over graphene sand composite for methylene blue photocatalytic degradation. Journal of Environmental Chemical Engineering 2020, 8, 104191 .

AMA Style

Andressa Jenifer Rubio Luciano, Lara De Sousa Soletti, Maria Eliana Camargo Ferreira, Luís Fernando Cusioli, Murilo Barbosa de Andrade, Rosângela Bergamasco, Natália Ueda Yamaguchi. Manganese ferrite dispersed over graphene sand composite for methylene blue photocatalytic degradation. Journal of Environmental Chemical Engineering. 2020; 8 (5):104191.

Chicago/Turabian Style

Andressa Jenifer Rubio Luciano; Lara De Sousa Soletti; Maria Eliana Camargo Ferreira; Luís Fernando Cusioli; Murilo Barbosa de Andrade; Rosângela Bergamasco; Natália Ueda Yamaguchi. 2020. "Manganese ferrite dispersed over graphene sand composite for methylene blue photocatalytic degradation." Journal of Environmental Chemical Engineering 8, no. 5: 104191.

Journal article
Published: 27 May 2020 in Revista Científica FAEMA
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Em relação à qualidade das águas subterrâneas, a presença de nitrato está entre os principais indicadores de poluição dos recursos hídricos. Este trabalho teve como objetivo investigar a presença de nitrato e conhecer o processo de remoção do íon nitrato de águas oriundas de fontes subterrâneas da bacia hidrográfica do Ribeirão Borba Gato (BHBG), utilizando carvão ativado. As amostras foram coletadas entre 08/2014 a 08/2015, em 19 poços tubulares e submetidas a análises físico-químicas, onde foi explorada a remoção do íon nitrato por meio de filtro de carvão ativado comercial. A partir das análises foi possível verificar possíveis riscos de contaminação antrópica, por meio das concentrações de nitrato e detectar a quantidade de nitrato que o filtro comercial de carvão ativado retém no processo de filtração lenta. Grande parte das amostras evidenciaram concentrações de nitrato acima dos valores naturais para águas subterrâneas. Verificou-se, portanto, que as fontes subterrâneas da BHBG vêm sofrendo contaminação, podendo apresentar outros poluentes de igual ou superior periculosidade à saúde humana e ambiental.

ACS Style

Driano Rezende; Daniel Mantovani; Nilton Carlos Valim Junior; Rosângela Bergamasco; Leticia Nishi; Evelin Samuelsson; Edson Rodrigues Cavalcante. EVALUATION OF THE PRESENCE OF NITRATE AND ITS REMOVAL IN WATERS FROM GROUNDWATER SOURCES IN MARINGÁ-PR. Revista Científica FAEMA 2020, 10, 84 -94.

AMA Style

Driano Rezende, Daniel Mantovani, Nilton Carlos Valim Junior, Rosângela Bergamasco, Leticia Nishi, Evelin Samuelsson, Edson Rodrigues Cavalcante. EVALUATION OF THE PRESENCE OF NITRATE AND ITS REMOVAL IN WATERS FROM GROUNDWATER SOURCES IN MARINGÁ-PR. Revista Científica FAEMA. 2020; 10 (2):84-94.

Chicago/Turabian Style

Driano Rezende; Daniel Mantovani; Nilton Carlos Valim Junior; Rosângela Bergamasco; Leticia Nishi; Evelin Samuelsson; Edson Rodrigues Cavalcante. 2020. "EVALUATION OF THE PRESENCE OF NITRATE AND ITS REMOVAL IN WATERS FROM GROUNDWATER SOURCES IN MARINGÁ-PR." Revista Científica FAEMA 10, no. 2: 84-94.

Articles
Published: 24 April 2020 in Environmental Technology
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Contaminations by Staphylococcus aureus in food industry environments have been extended to industrial Effluent Treatment Plant (ETP).The methodologies used in ETP for bacterial removals andquality parametersadjustmentcommonly use products toxic to the environment, being mostly inefficient against virulent bacteria such as S. aureus. Seeds of Moringa oleifera Lam. (MO) have potential to be used in ETPas an alternative to harmful products, as it has both the ability to regulate the physicochemical parameters of water and has antibacterial action.Functionalization of MO with magnetite magnetic nanoparticles(Fe3O4) at nanoscale focusing on coagulation and flocculation of wastewater has been gaining prominence. Therefore, the present study evaluated the potential use of the magnetic coagulant MO-Fe3O4 in the elimination of S. aureus in synthetic dairy effluent; concomitantly sought to adjust thequalitylevelsof physicochemical parameters. MO-Fe3O4 added to synthetic dairy effluent at different concentrations amounted to 16 treatments, which were evaluated for removal of color, turbidity, UV254nm and S. aureus on the effluent surface and sludge after 30 min of sedimentation. The results confirmed the efficient elimination of S. aureus simultaneously with a significant reductionof the physicochemical values, with constant efficiency up to 30 min. Scanning electron microscopy images confirm the removal of S. aureus on the effluent surface and sludge. Thus, this study was able to present a natural coagulant capable of removebacteria and adjust the quality levels of the effluentafter 10 min of sedimentation, making this biotechnological innovation highly applicable to ETP.

ACS Style

Alessandra Marjorie De Oliveira; Gustavo Affonso Pisano Mateus; Tássia Rhuna Tonial Dos Santos; Benício Alves De Abreu Filho; Raquel Guttierres Gomes; Rosangela Bergamasco. Functionalized magnetite nanoparticles with Moringa oleifera with potent antibacterial action in wastewater. Environmental Technology 2020, 1 -10.

AMA Style

Alessandra Marjorie De Oliveira, Gustavo Affonso Pisano Mateus, Tássia Rhuna Tonial Dos Santos, Benício Alves De Abreu Filho, Raquel Guttierres Gomes, Rosangela Bergamasco. Functionalized magnetite nanoparticles with Moringa oleifera with potent antibacterial action in wastewater. Environmental Technology. 2020; ():1-10.

Chicago/Turabian Style

Alessandra Marjorie De Oliveira; Gustavo Affonso Pisano Mateus; Tássia Rhuna Tonial Dos Santos; Benício Alves De Abreu Filho; Raquel Guttierres Gomes; Rosangela Bergamasco. 2020. "Functionalized magnetite nanoparticles with Moringa oleifera with potent antibacterial action in wastewater." Environmental Technology , no. : 1-10.

Short communication
Published: 02 April 2020 in Journal of Environmental Chemical Engineering
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This study developed an innovative magnetic adsorbent synthesized by combining graphene oxide (GO), obtained by the modified Hummers method, and iron oxide nanoparticles with new characteristics, produced by a modified sol-gel method. Using iron sulphate as a precursor maked it possible to obtain nanoparticles with different characteristics from others synthesized by modified sol-gel method. When combined by an easy and fast ultrasonic method, resulted in the new adsorbent GO-α-γ-Fe2O3-Sh, that was applied in removing diuron herbicide from aqueous solutions. The adsorbent was characterized and after this was used in adsorption batch tests. The experimental conditions was optimized verifying the effect of pH and adsorbent concentration. For these optimized parameters, the results obtained were natural pH of the solution (6.2) and adsorbent concentration of 2 g L−1. Then the isothermal models were validated using equilibrium adsorption data and the GO-α-γ-Fe2O3-Sh was applied to studying adsorption kinetics. In addition, the thermodynamic parameters were evaluated to describe the behaviour of the adsorptive process and an adsorption mechanism was proposed. The results demonstrated a good efficiency and a rapid separation using an external magnetic field, with maximum adsorption capacity of 30.290 mg g−1 in 8 h of equilibrium at 45 °C and was favourable and spontaneous with adsorptive capacity increasing with increasing temperature.

ACS Style

Murilo Barbosa de Andrade; Ana Carolina Sestito Guerra; Tássia Rhuna Tonial dos Santos; Luís Fernando Cusioli; Rodrigo De Souza Antônio; Rosângela Bergamasco. Simplified synthesis of new GO-α-γ-Fe2O3-Sh adsorbent material composed of graphene oxide decorated with iron oxide nanoparticles applied for removing diuron from aqueous medium. Journal of Environmental Chemical Engineering 2020, 8, 103903 .

AMA Style

Murilo Barbosa de Andrade, Ana Carolina Sestito Guerra, Tássia Rhuna Tonial dos Santos, Luís Fernando Cusioli, Rodrigo De Souza Antônio, Rosângela Bergamasco. Simplified synthesis of new GO-α-γ-Fe2O3-Sh adsorbent material composed of graphene oxide decorated with iron oxide nanoparticles applied for removing diuron from aqueous medium. Journal of Environmental Chemical Engineering. 2020; 8 (4):103903.

Chicago/Turabian Style

Murilo Barbosa de Andrade; Ana Carolina Sestito Guerra; Tássia Rhuna Tonial dos Santos; Luís Fernando Cusioli; Rodrigo De Souza Antônio; Rosângela Bergamasco. 2020. "Simplified synthesis of new GO-α-γ-Fe2O3-Sh adsorbent material composed of graphene oxide decorated with iron oxide nanoparticles applied for removing diuron from aqueous medium." Journal of Environmental Chemical Engineering 8, no. 4: 103903.

Journal article
Published: 15 January 2020 in Water Science and Technology
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Chemical products traditionally used in the disinfection of water bodies often pose human health risks. For this reason, studies on natural coagulants such as Moringa oleifera Lam. represent an alternative for the inactivation of pathogenic microorganisms, among which is Escherichia coli. This study evaluated the effect of different concentrations of coagulants obtained from Moringa seed extracts and their protein fractions in the inactivation of E. coli during the coagulation/flocculation process. The coagulants studied were the aqueous extract, saline extract and protein fractions albumin and globulin, highlighting that the protein fractions were more effective on inactivating E. coli. The protein fraction globulin at a concentration of 10.0 mg L−1 showed bactericidal effects against E. coli within 18 min, whereas the albumin showed a bacteriostatic effect within 48 min because it isolated colonies in the sediment sample.

ACS Style

Fabiane Masala R. Silveira; Aline Takaoka A. Baptista; Tatiane V. Dutra; Benício Alves De Abreu Filho; Raquel G. Gomes; Rosângela Bergamasco. Application of Moringa oleifera Lam. fractionated proteins for inactivation of Escherichia coli from water. Water Science and Technology 2020, 81, 265 -273.

AMA Style

Fabiane Masala R. Silveira, Aline Takaoka A. Baptista, Tatiane V. Dutra, Benício Alves De Abreu Filho, Raquel G. Gomes, Rosângela Bergamasco. Application of Moringa oleifera Lam. fractionated proteins for inactivation of Escherichia coli from water. Water Science and Technology. 2020; 81 (2):265-273.

Chicago/Turabian Style

Fabiane Masala R. Silveira; Aline Takaoka A. Baptista; Tatiane V. Dutra; Benício Alves De Abreu Filho; Raquel G. Gomes; Rosângela Bergamasco. 2020. "Application of Moringa oleifera Lam. fractionated proteins for inactivation of Escherichia coli from water." Water Science and Technology 81, no. 2: 265-273.