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Prof. Dr. Antonio Panico
Telematic University Pegaso, Piazza Trieste e Trento 48, 80132 Naples, Italy

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0 Anaerobic Digestion
0 Mathematical Modelling
0 soil remediation
0 Bio-Refinery
0 biological processes

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Anaerobic Digestion
biological processes
Mathematical Modelling
soil remediation

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Journal article
Published: 24 July 2021 in Water
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The coagulation–flocculation–sedimentation process is widely used for removal of suspended solids and water turbidity reduction. The most common coagulants used to conduct this process are aluminum sulfate and ferric sulfate. In this paper, the use of Aloe vera as a natural-based coagulant for drinking water treatment was tested. The bio-coagulant was used in two different forms: powder as well as liquid; the latter was extracted with distilled water used as a solvent. The obtained results showed that the use of the natural coagulant (Aloe vera) in both powder (AV-Powder) and liquid (AV-H2O) forms reduced the water turbidity at natural pH by 28.23% and 87.84%, respectively. Moreover, it was found that the use of the two previous forms of bio-coagulant for drinking water treatment had no significant influence on the following three parameters: pH, alkalinity, and hardness. The study of the effect of pH on the process performance using Aloe vera as a bio-coagulant demonstrated that the maximum turbidity removal efficiency accounted for 53.53% and 88.23% using AV-Powder and AV-H2O, respectively, at optimal pH 6.

ACS Style

Abderrezzaq Benalia; Kerroum Derbal; Amel Khalfaoui; Raouf Bouchareb; Antonio Panico; Corrado Gisonni; Gaetano Crispino; Francesco Pirozzi; Antonio Pizzi. Use of Aloe vera as an Organic Coagulant for Improving Drinking Water Quality. Water 2021, 13, 2024 .

AMA Style

Abderrezzaq Benalia, Kerroum Derbal, Amel Khalfaoui, Raouf Bouchareb, Antonio Panico, Corrado Gisonni, Gaetano Crispino, Francesco Pirozzi, Antonio Pizzi. Use of Aloe vera as an Organic Coagulant for Improving Drinking Water Quality. Water. 2021; 13 (15):2024.

Chicago/Turabian Style

Abderrezzaq Benalia; Kerroum Derbal; Amel Khalfaoui; Raouf Bouchareb; Antonio Panico; Corrado Gisonni; Gaetano Crispino; Francesco Pirozzi; Antonio Pizzi. 2021. "Use of Aloe vera as an Organic Coagulant for Improving Drinking Water Quality." Water 13, no. 15: 2024.

Journal article
Published: 20 May 2021 in Environmental Research
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Cyanobacteria and microalgae are considered as interesting feedstocks for either the production of high value bio-based compounds and biofuels or wastewater treatment. Nevertheless, the high costs of production, mainly due to the harvesting process, hamper a wide commercialization of industrial cyanobacteria and microalgae based products. Recent studies have found in autoflocculation and bioflocculation promising spontaneous processes for a low-cost and environmentally sustainable cyanobacteria and microalgae biomass harvesting process. In the present work, bioflocculation process has been studied for three different inocula: filamentous cyanobacteria, microalgae and their mixture. Their cultivation has been conducted in batch mode using two different cultivation media: synthetic aqueous solution and urban wastewater. The removal of nutrients and flocculation process performance were monitored during the entire cultivation time. Results have proved that bioflocculation and sedimentation processes occur efficiently for filamentous cyanobacteria cultivated in synthetic aqueous solution, whereas such processes are less efficient in urban wastewater due to the specific characteristics of this medium that prevent bioflocculation to occur. Besides different efficiencies associated to cultivation media, this work highlighted that bioflocculation of sole microalgae is not as effective as when they are cultivated together with filamentous cyanobacteria.

ACS Style

Floriana Iasimone; Jordan Seira; Antonio Panico; Vincenzo De Felice; Francesco Pirozzi; Jean-Philippe Steyer. Insights into bioflocculation of filamentous cyanobacteria, microalgae and their mixture for a low-cost biomass harvesting system. Environmental Research 2021, 199, 111359 .

AMA Style

Floriana Iasimone, Jordan Seira, Antonio Panico, Vincenzo De Felice, Francesco Pirozzi, Jean-Philippe Steyer. Insights into bioflocculation of filamentous cyanobacteria, microalgae and their mixture for a low-cost biomass harvesting system. Environmental Research. 2021; 199 ():111359.

Chicago/Turabian Style

Floriana Iasimone; Jordan Seira; Antonio Panico; Vincenzo De Felice; Francesco Pirozzi; Jean-Philippe Steyer. 2021. "Insights into bioflocculation of filamentous cyanobacteria, microalgae and their mixture for a low-cost biomass harvesting system." Environmental Research 199, no. : 111359.

Original article
Published: 10 May 2021 in Biomass Conversion and Biorefinery
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Studies were carried out on anaerobic digestion of tannery wastewater obtained from leather processing. Degassed activated sludge biomass collected from a wastewater treatment plant was used as source of microorganisms. The study was carried out to examine the impact of alkaline pretreatment on a real tannery wastewater prior anaerobic digestion process. Bio-methane potential tests were conducted at 35±2°C on tannery wastewater pretreated by adding different volumes of 2N NaOH solution up to set pH values at 9, 10, 11, and 12, respectively. NaOH solution addition resulted in a partial removal of total Cr showing efficiency from 16.84 to 95.72% as well as in an increase of the soluble chemical oxygen demand concentration from 8.53 to 29.02%. The effects of this pretreatment affected significantly the results obtained with bio-methane potential tests that showed methane production from all the pretreated tannery wastewater samples much higher than from that unpretreated. Finally, the lag phase duration and the maximum specific methane production rate of the anaerobic digestion process were evaluated by fitting the experimental results from bio-methane potential tests with the following three models: (i) the modified Gompertz model, (ii) the Logistic function, and (iii) the Richards model. All the previous models showed a high level of accordance with the experimental data, even though Richards model resulted in being the most accurate.

ACS Style

Achouri Ouafa; Panico Antonio; Bencheikh-Lehocin Mossaab; Derbal Kerroum; Rabahi Amel; Pirozzi Francesco. Alkaline pretreatment of tannery wastewater impact on biochemical methane potential tests: experimental study and kinetic modeling. Biomass Conversion and Biorefinery 2021, 1 -13.

AMA Style

Achouri Ouafa, Panico Antonio, Bencheikh-Lehocin Mossaab, Derbal Kerroum, Rabahi Amel, Pirozzi Francesco. Alkaline pretreatment of tannery wastewater impact on biochemical methane potential tests: experimental study and kinetic modeling. Biomass Conversion and Biorefinery. 2021; ():1-13.

Chicago/Turabian Style

Achouri Ouafa; Panico Antonio; Bencheikh-Lehocin Mossaab; Derbal Kerroum; Rabahi Amel; Pirozzi Francesco. 2021. "Alkaline pretreatment of tannery wastewater impact on biochemical methane potential tests: experimental study and kinetic modeling." Biomass Conversion and Biorefinery , no. : 1-13.

Review paper
Published: 13 April 2021 in Reviews in Environmental Science and Bio/Technology
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Although poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is the most promising biopolymer for petroleum-based plastics replacement, the low processes productivity as well as the high sale price represent a major barrier for its widespread usage. The present work examines comparatively the existing methods to enhance the yield of the PHBV co-polymer biologically produced and/or reduce their costs. The study is addressed to researchers working on the development of new biological production methods and/or the improvement of those currently used. At this aim, the authors have considered the analysis of some crucial aspects related to substrates and microorganism’s choice. The production strategies have been individuated, presented and discussed, either based on a single aspect (type of substrate or microorganism) or based on combined aspects (type of substrate and microorganism). Process operating conditions have been discussed as well. The analysis indicates that the addition of 3HV precursors is capable to dramatically enhance the hydroxyvalerate fraction in the produced biopolymers. On the other hand, due to the high costs of the 3HV precursors, the utilization of wild bacterial species capable to produce the hydroxyvalerate fraction from unrelated carbon sources (i.e. no 3HV precursors) also can be considered a valuable strategy for costs reduction. Moreover, metabolic engineering techniques can be successfully used to promote 3HV precursors-independent biosynthesis pathways and enhance the process productivity. The use of mixed cultures or extremophile bacteria avoids the need of sterile working conditions, and therefore favours the process scale-up. The utilization of the organic waste as substrate plays a key role for a sharp reduction of production costs. Finally, the selection of the most suitable substrate-microorganism combination cannot be separated by the adoption of an appropriate choice of reactor configuration and abiotic factors. Graphic abstract

ACS Style

Grazia Policastro; Antonio Panico; Massimiliano Fabbricino. Improving biological production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) co-polymer: a critical review. Reviews in Environmental Science and Bio/Technology 2021, 20, 479 -513.

AMA Style

Grazia Policastro, Antonio Panico, Massimiliano Fabbricino. Improving biological production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) co-polymer: a critical review. Reviews in Environmental Science and Bio/Technology. 2021; 20 (2):479-513.

Chicago/Turabian Style

Grazia Policastro; Antonio Panico; Massimiliano Fabbricino. 2021. "Improving biological production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) co-polymer: a critical review." Reviews in Environmental Science and Bio/Technology 20, no. 2: 479-513.

Journal article
Published: 06 April 2021 in Bioresource Technology
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This study investigated the feasibility of hydrogen (H2) and L-lactic acid production from starch under capnophilic lactic fermentation (CLF) conditions by using Thermotoga neapolitana. Batch experiments were performed in 120 mL serum bottles and a 3 L pH-controlled continuous stirred-tank reactors (CSTR) system with potato and wheat starch as the substrates. A H2 yield of 3.34 (±0.17) and 2.79 (±0.17) mol H2/mol of glucose eq. was achieved with, respectively, potato and wheat starch. In the presence of CO2, L-lactic acid production by the acetyl-CoA carboxylation was significantly higher for the potato starch (0.88 ± 0.39 mol lactic acid/mol glucose eq.) than wheat starch (0.33 ± 0.11 mol lactic acid/mol glucose eq.). A kinetic model was applied to simulate and predict the T. neapolitana metabolic profile and bioreactor performance under CLF conditions. The CLF-based starch fermentation suggests a new direction to biotransform agri-food waste into biofuels and valuable biochemicals.

ACS Style

Nirakar Pradhan; Giuliana D'Ippolito; Laura Dipasquale; Giovanni Esposito; Antonio Panico; Piet N.L. Lens; Angelo Fontana. Kinetic modeling of hydrogen and L-lactic acid production by Thermotoga neapolitana via capnophilic lactic fermentation of starch. Bioresource Technology 2021, 332, 125127 .

AMA Style

Nirakar Pradhan, Giuliana D'Ippolito, Laura Dipasquale, Giovanni Esposito, Antonio Panico, Piet N.L. Lens, Angelo Fontana. Kinetic modeling of hydrogen and L-lactic acid production by Thermotoga neapolitana via capnophilic lactic fermentation of starch. Bioresource Technology. 2021; 332 ():125127.

Chicago/Turabian Style

Nirakar Pradhan; Giuliana D'Ippolito; Laura Dipasquale; Giovanni Esposito; Antonio Panico; Piet N.L. Lens; Angelo Fontana. 2021. "Kinetic modeling of hydrogen and L-lactic acid production by Thermotoga neapolitana via capnophilic lactic fermentation of starch." Bioresource Technology 332, no. : 125127.

Journal article
Published: 23 February 2021 in Chemosphere
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This paper proposes an innovative bioaugmentation approach for the remediation of polycyclic aromatic hydrocarbon (PAH) contaminated soils, based on a novel habitat-based strategy. This approach was tested using two inocula (i-24 and i-96) previously enriched through an anaerobic digestion process on wheat straw. It relies on the application of allochthonous microorganisms characterized by specific functional roles obtained by mimicking a natural hydrolytic environment such as the rumen. The inocula efficiency was tested in presence of naphthalene alone, benzo[a]pyrene alone, and a mix of both of them. In single-contamination tests, i-24 inoculum showed the highest biodegradation rates (84.7% for naphthalene and 51.7% for benzo[a]pyrene). These values were almost 1.2 times higher than those obtained for both contaminants with i-96 inoculum and in the control test in presence of naphthalene alone, while they were 3 times higher compared to the control test in presence of benzo[a]pyrene alone. In mixed-contamination tests, i-96 inoculum showed final biodegradation efficiencies for naphthalene and benzo[a]pyrene between 1.1 and 1.5 higher than i-24 inoculum or autochthonous biomass. Total microbial abundances increased in the bioaugmented tests in line with the PAH degradation. The microbial community structure showed the highest diversity at the end of the experiment in almost all cases. Values of the Firmicutes active fraction up to 7 times lower were observed in the i-24 bioaugmented tests compared to i-96 and control tests. This study highlights a successful bioaugmentation strategy with biological components that can be reused in multiple processes supporting an integrated and environmentally sustainable bioremediation system.

ACS Style

Alberto Ferraro; Giulia Massini; Valentina Mazzurco Miritana; Antonio Panico; Ludovico Pontoni; Marco Race; Silvia Rosa; Antonella Signorini; Massimiliano Fabbricino; Francesco Pirozzi. Bioaugmentation strategy to enhance polycyclic aromatic hydrocarbons anaerobic biodegradation in contaminated soils. Chemosphere 2021, 275, 130091 .

AMA Style

Alberto Ferraro, Giulia Massini, Valentina Mazzurco Miritana, Antonio Panico, Ludovico Pontoni, Marco Race, Silvia Rosa, Antonella Signorini, Massimiliano Fabbricino, Francesco Pirozzi. Bioaugmentation strategy to enhance polycyclic aromatic hydrocarbons anaerobic biodegradation in contaminated soils. Chemosphere. 2021; 275 ():130091.

Chicago/Turabian Style

Alberto Ferraro; Giulia Massini; Valentina Mazzurco Miritana; Antonio Panico; Ludovico Pontoni; Marco Race; Silvia Rosa; Antonella Signorini; Massimiliano Fabbricino; Francesco Pirozzi. 2021. "Bioaugmentation strategy to enhance polycyclic aromatic hydrocarbons anaerobic biodegradation in contaminated soils." Chemosphere 275, no. : 130091.

Erratum
Published: 15 February 2021 in Biomass and Bioenergy
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ACS Style

Nirakar Pradhan; Giuliana D’Ippolito; Laura Dipasquale; Giovanni Esposito; Antonio Panico; Piet N.L. Lens; Angelo Fontana. Corrigendum to “Simultaneous synthesis of lactic acid and hydrogen from sugars via capnophilic lactic fermentation by Thermotoga neapolitana cf capnolactica” [Biomass and Bioenergy 125 (2019) 17–22]. Biomass and Bioenergy 2021, 150, 105999 .

AMA Style

Nirakar Pradhan, Giuliana D’Ippolito, Laura Dipasquale, Giovanni Esposito, Antonio Panico, Piet N.L. Lens, Angelo Fontana. Corrigendum to “Simultaneous synthesis of lactic acid and hydrogen from sugars via capnophilic lactic fermentation by Thermotoga neapolitana cf capnolactica” [Biomass and Bioenergy 125 (2019) 17–22]. Biomass and Bioenergy. 2021; 150 ():105999.

Chicago/Turabian Style

Nirakar Pradhan; Giuliana D’Ippolito; Laura Dipasquale; Giovanni Esposito; Antonio Panico; Piet N.L. Lens; Angelo Fontana. 2021. "Corrigendum to “Simultaneous synthesis of lactic acid and hydrogen from sugars via capnophilic lactic fermentation by Thermotoga neapolitana cf capnolactica” [Biomass and Bioenergy 125 (2019) 17–22]." Biomass and Bioenergy 150, no. : 105999.

Journal article
Published: 30 July 2020 in Minerals
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The combined use of the Radial Basis Function Network (RBFN) model with pretreated seawater by biomineralization (BSw) was investigated as an approach to improve copper tailings flocculation for mining purposes. The RBFN was used to set the optimal ranges of Ca2+ and Mg2+ concentration at different Ph in artificial seawater to optimize the performance of the mine tailings sedimentation process. The RBFN was developed by considering Ca2+ and Mg2+ concentration as well as pH as input variables, and mine tailings settling rate (Sr) and residual water turbidity (T) as output variables. The optimal ranges of Ca2+ and Mg2+ concentration were found, respectively: (i) 169–338 and 0–130 mg·L−1 at pH 9.3; (ii) 0–21 and 400–741 mg·L–1 at pH 10.5; (iii) 377–418 and 703–849 mg·L−1 at pH 11.5. The settling performance predicted by the RBFN was compared with that measured in raw seawater (Sw), chemically pretreated seawater (CHSw), BSw, and tap water (Tw). The results highlighted that the RBFN model is greatly useful to predict the settling performance in CHSw. On the other hand, the highest Sr values (i.e., 5.4, 5.7, and 5.4 m·h–1) were reached independently of pH when BSw was used as a separation medium for the sedimentation process.

ACS Style

Grecia Villca; Dayana Arias; Ricardo Jeldres; Antonio Pánico; Mariella Rivas; Luis A. Cisternas. Use of Radial Basis Function Network to Predict Optimum Calcium and Magnesium Levels in Seawater and Application of Pretreated Seawater by Biomineralization as Crucial Tools to Improve Copper Tailings Flocculation. Minerals 2020, 10, 676 .

AMA Style

Grecia Villca, Dayana Arias, Ricardo Jeldres, Antonio Pánico, Mariella Rivas, Luis A. Cisternas. Use of Radial Basis Function Network to Predict Optimum Calcium and Magnesium Levels in Seawater and Application of Pretreated Seawater by Biomineralization as Crucial Tools to Improve Copper Tailings Flocculation. Minerals. 2020; 10 (8):676.

Chicago/Turabian Style

Grecia Villca; Dayana Arias; Ricardo Jeldres; Antonio Pánico; Mariella Rivas; Luis A. Cisternas. 2020. "Use of Radial Basis Function Network to Predict Optimum Calcium and Magnesium Levels in Seawater and Application of Pretreated Seawater by Biomineralization as Crucial Tools to Improve Copper Tailings Flocculation." Minerals 10, no. 8: 676.

Journal article
Published: 06 June 2020 in International Journal of Environmental Research and Public Health
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The use of bacterial strains as agents in bioremediation processes could reduce the harmfulness of potential toxic elements (PTEs) from water and soil with low or even no impact on the natural ecosystems. In this study, two new metal resistant-bacterial strains (Q3 and Q5) of Bacillus sp. were isolated from a sulfurous spring and their potential (as pure cultures or mixed) to remove Pb(II) and Cd(II) from an aqueous matrix was evaluated and optimized using response surface methodology (RSM). The optimal conditions for Cd(II) removal from all tested strains combinations were observed at an initial pH 5, a temperature of 38 °C, and an initial Cd(II) concentration of 50 mg L−1, while the performance of bacterial strains on Pb(II) removal was strongly correlated to initial pH and temperature conditions. Moreover, the efficiency of bacterial strains in removing both PTEs, Pb(II) and Cd(II), from an aqueous matrix was considerably higher when they were used as a mixed culture rather than pure. According to field emission SEM (FESEM) and EDS analysis, the two bacterial strains showed different mechanisms in removing Cd(II): Bacillus sp. Q5 bio-accumulated Cd(II) in its periplasmic space, whereas Bacillus sp. Q3 bio-accumulated Cd(II) on its cell surface. On the other hand, Pb(II) is removed by chemical precipitation (lead sulfide) induced by both Bacillus sp. Q3 and Q5. This study discloses new aspects of Pb(II) and Cd(II) bioremediation mechanisms in Bacillus species that can be extremely useful for designing and operating novel PTEs bioremediation processes.

ACS Style

Parviz Heidari; Antonio Panico. Sorption Mechanism and Optimization Study for the Bioremediation of Pb(II) and Cd(II) Contamination by Two Novel Isolated Strains Q3 and Q5 of Bacillus sp. International Journal of Environmental Research and Public Health 2020, 17, 4059 .

AMA Style

Parviz Heidari, Antonio Panico. Sorption Mechanism and Optimization Study for the Bioremediation of Pb(II) and Cd(II) Contamination by Two Novel Isolated Strains Q3 and Q5 of Bacillus sp. International Journal of Environmental Research and Public Health. 2020; 17 (11):4059.

Chicago/Turabian Style

Parviz Heidari; Antonio Panico. 2020. "Sorption Mechanism and Optimization Study for the Bioremediation of Pb(II) and Cd(II) Contamination by Two Novel Isolated Strains Q3 and Q5 of Bacillus sp." International Journal of Environmental Research and Public Health 17, no. 11: 4059.

Journal article
Published: 26 June 2019 in International Journal of Hydrogen Energy
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This study focused on the supersaturation of hydrogen in the liquid phase (H2aq) and its inhibitory effect on dark fermentation by Thermotoga neapolitana cf. capnolactica by increasing the agitation (from 100 to 500 rpm) and recirculating H2-rich biogas (GaR). At low cell concentrations, both 500 rpm and GaR reduced the H2aq from 30.1 (±4.4) mL/L to the lowest values of 7.4 (±0.7) mL/L and 7.2 (±1.2) mL/L, respectively. However, at high cell concentrations (0.79 g CDW/L), the addition of GaR at 300 rpm was more efficient and increased the hydrogen production rate by 271%, compared to a 136% increase when raising the agitation to 500 rpm instead. While H2aq primarily affected the dark fermentation rate, GaR concomitantly increased the hydrogen yield up to 3.5 mol H2/mol glucose. Hence, H2aq supersaturation highly depends on the systems gas-liquid mass transfer and strongly inhibits dark fermentation.

ACS Style

Gilbert Dreschke; Stefano Papirio; Giuliana D’Ippolito; Antonio Panico; Piet N.L. Lens; Giovanni Esposito; Angelo Fontana. H2-rich biogas recirculation prevents hydrogen supersaturation and enhances hydrogen production by Thermotoga neapolitana cf. capnolactica. International Journal of Hydrogen Energy 2019, 44, 19698 -19708.

AMA Style

Gilbert Dreschke, Stefano Papirio, Giuliana D’Ippolito, Antonio Panico, Piet N.L. Lens, Giovanni Esposito, Angelo Fontana. H2-rich biogas recirculation prevents hydrogen supersaturation and enhances hydrogen production by Thermotoga neapolitana cf. capnolactica. International Journal of Hydrogen Energy. 2019; 44 (36):19698-19708.

Chicago/Turabian Style

Gilbert Dreschke; Stefano Papirio; Giuliana D’Ippolito; Antonio Panico; Piet N.L. Lens; Giovanni Esposito; Angelo Fontana. 2019. "H2-rich biogas recirculation prevents hydrogen supersaturation and enhances hydrogen production by Thermotoga neapolitana cf. capnolactica." International Journal of Hydrogen Energy 44, no. 36: 19698-19708.

Journal article
Published: 13 April 2019 in Biomass and Bioenergy
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This study investigated the effect of the salinity level, buffering agent and carbon source on the hydrogen (H2) and lactic acid synthesis under capnophilic (CO2-assisted) lactic fermentation (CLF) by Thermotoga neapolitana cf capnolactica (DSM 33003). Several series of batch fermentation experiments were performed either in 0.12 L serum bottles for selection of the best performing conditions or in a 3 L fermenter for the best possible combination of conditions. The serum bottle study revealed that change in the salinity level of the culture medium from 0 to 35 g L−1 NaCl increased lactic acid synthesis by 7.5 times without affecting the H2 yield. Use of different buffers (MOPS, TRIS or HEPES) did not affect the average H2 yield of 3.0 ± 0.24 mol H2 mol−1 of glucose and lactic acid synthesis of 13.7 ± 1.03 mM when the cultures were sparged by CO2. Among the carbon sources investigated, glucose was found to be the best performing carbon source for the CLF fermentation with 35 g L−1 of NaCl and 0.01 M of phosphate buffer. Hence, an up-scale experiment using a 3 L fermenter and the combination of the best performing conditions showed a 2.2 times more lactic acid synthesis compared to the 0.12 L serum bottle experiments. The study reveals the robustness and flexibility of the CLF-based technology using T. neapolitana cf capnolactica fermentation under various operating environmental conditions.

ACS Style

Nirakar Pradhan; Giuliana D’Ippolito; Laura Dipasquale; Giovanni Esposito; Antonio Panico; Piet N.L. Lens; Angelo Fontana. Simultaneous synthesis of lactic acid and hydrogen from sugars via capnophilic lactic fermentation by Thermotoga neapolitana cf capnolactica. Biomass and Bioenergy 2019, 125, 17 -22.

AMA Style

Nirakar Pradhan, Giuliana D’Ippolito, Laura Dipasquale, Giovanni Esposito, Antonio Panico, Piet N.L. Lens, Angelo Fontana. Simultaneous synthesis of lactic acid and hydrogen from sugars via capnophilic lactic fermentation by Thermotoga neapolitana cf capnolactica. Biomass and Bioenergy. 2019; 125 ():17-22.

Chicago/Turabian Style

Nirakar Pradhan; Giuliana D’Ippolito; Laura Dipasquale; Giovanni Esposito; Antonio Panico; Piet N.L. Lens; Angelo Fontana. 2019. "Simultaneous synthesis of lactic acid and hydrogen from sugars via capnophilic lactic fermentation by Thermotoga neapolitana cf capnolactica." Biomass and Bioenergy 125, no. : 17-22.

Journal article
Published: 31 December 2018 in Water
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In this study, the use of acorn leaves as a natural coagulant to reduce raw water turbidity and globally improve drinking water quality was investigated. The raw water was collected from a drinking water treatment plant located in Mila (Algeria) with an initial turbidity of 13.0 ± 0.1 NTU. To obtain acorn leaf powder as a coagulant, the acorn leaves were previously cleaned, washed with tap water, dried, ground and then finely sieved. To improve the coagulant activity and, consequently, the turbidity removal efficiency, the fine powder was also preliminarily treated with different solvents, as follows, in order to extract the coagulant agent: (i) distilled water; (ii) solutions of NaCl (0.25; 0.5 and 1 M); (iii) solutions of NaOH (0.025; 0.05 and 0.1 M); and (iv) solutions of HCl (0.025; 0.05 and 0.1 M). Standard Jar Test assays were conducted to evaluate the performance of the coagulant in the different considered operational conditions. Results of the study indicated that at low turbidity (e.g., 13.0 ± 0.1 NTU), the raw acorn leaf powder and those treated with distilled water (DW) were able to decrease the turbidity to 3.69 ± 0.06 and 1.97 ± 0.03 NTU, respectively. The use of sodium chloride solution (AC-NaCl) at 0.5 M resulted in a high turbidity removal efficiency (91.07%) compared to solutions with different concentrations (0.25 and 1 M). Concerning solutions of sodium hydroxide (AC-NaOH) and hydrogen chloride (AC-HCl), the lowest final turbidities of 1.83 ± 0.13 and 0.92 ± 0.02 NTU were obtained when the concentrations of the solutions were set at 0.05 and 0.1 M, respectively. Finally, in this study, other water quality parameters, such as total alkalinity hardness, pH, electrical conductivity and organic matters content, were measured to assess the coagulant performance on drinking water treatment.

ACS Style

Abderrezzaq Benalia; Kerroum Derbal; Antonio Panico; Francesco Pirozzi. Use of Acorn Leaves as a Natural Coagulant in a Drinking Water Treatment Plant. Water 2018, 11, 57 .

AMA Style

Abderrezzaq Benalia, Kerroum Derbal, Antonio Panico, Francesco Pirozzi. Use of Acorn Leaves as a Natural Coagulant in a Drinking Water Treatment Plant. Water. 2018; 11 (1):57.

Chicago/Turabian Style

Abderrezzaq Benalia; Kerroum Derbal; Antonio Panico; Francesco Pirozzi. 2018. "Use of Acorn Leaves as a Natural Coagulant in a Drinking Water Treatment Plant." Water 11, no. 1: 57.

Journal article
Published: 19 June 2018 in International Journal of Hydrogen Energy
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The objective of this study was to enhance the hydrogen production rate of dark fermentation in batch operation. For the first time, the hyperthermophilic pure culture of Thermotoga neapolitana cf. Capnolactica was applied at elevated biomass concentrations. The increase of the initial biomass concentration from 0.46 to 1.74 g cell dry weight/L led to a general acceleration of the fermentation process, reducing the fermentation time of 5 g glucose/L down to 3 h with a lag phase of 0.4 h. The volumetric hydrogen production rate increased from 323 (±11) to 654 (±30) mL/L/h with a concomitant enhancement of the biomass growth and glucose consumption rate. The hydrogen yield of 2.45 (±0.09) mol H2/mol glucose, the hydrogen concentration of 68% in the produced gas and the composition of the end products in the digestate, i.e. 62.3 (±2.5)% acetic acid, 23.5 (±2.9)% lactic acid and 2.3 (±0.1)% alanine, remained unaffected at increasing biomass concentrations.

ACS Style

Gilbert Dreschke; Giuliana D’Ippolito; Antonio Panico; Piet N.L. Lens; Giovanni Esposito; Angelo Fontana. Enhancement of hydrogen production rate by high biomass concentrations of Thermotoga neapolitana. International Journal of Hydrogen Energy 2018, 43, 13072 -13080.

AMA Style

Gilbert Dreschke, Giuliana D’Ippolito, Antonio Panico, Piet N.L. Lens, Giovanni Esposito, Angelo Fontana. Enhancement of hydrogen production rate by high biomass concentrations of Thermotoga neapolitana. International Journal of Hydrogen Energy. 2018; 43 (29):13072-13080.

Chicago/Turabian Style

Gilbert Dreschke; Giuliana D’Ippolito; Antonio Panico; Piet N.L. Lens; Giovanni Esposito; Angelo Fontana. 2018. "Enhancement of hydrogen production rate by high biomass concentrations of Thermotoga neapolitana." International Journal of Hydrogen Energy 43, no. 29: 13072-13080.

Journal article
Published: 18 March 2018 in International Journal of Environmental Research and Public Health
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This paper presents the results of an experimental study aimed at investigating the effect of operative parameters on the efficiency of a soil flushing process, conducted on real contaminated soil containing high amounts of Cu and Zn. Soil flushing tests were carried out with Ethylenediamine-N,N′-disuccinic acid (EDDS) as a flushing agent due to its high biodegradability and environmentally friendly characteristics. Process parameters such as Empty-Bed Contact Time (EBCT) and EDDS solution molarity were varied from 21–33 h and from 0.36–3.6 mM, respectively. Effects on the mobility of cations such as Fe and Mn were also investigated. Results showed that very high performances can be obtained at [EDDS] = 3.6 mM and EBCT = 33 h. In these conditions, in fact, the amount of removed Cu was 53%, and the amount of removed Zn was 46%. Metal distribution at different depths from the top surface revealed that Cu has higher mobility than Zn. The process results were strongly dependent on the exchange of metals due to the different stability constants of the EDDS complexes. Finally, results from a comparative study showed that soil washing treatment reached the same removal efficiency of the flushing process in a shorter time but required a larger amount of the EDDS solution.

ACS Style

Marco Race; Alberto Ferraro; Massimiliano Fabbricino; Agostino La Marca; Antonio Panico; Danilo Spasiano; Alice Tognacchini; Francesco Pirozzi. Ethylenediamine-N,N′-Disuccinic Acid (EDDS)—Enhanced Flushing Optimization for Contaminated Agricultural Soil Remediation and Assessment of Prospective Cu and Zn Transport. International Journal of Environmental Research and Public Health 2018, 15, 543 .

AMA Style

Marco Race, Alberto Ferraro, Massimiliano Fabbricino, Agostino La Marca, Antonio Panico, Danilo Spasiano, Alice Tognacchini, Francesco Pirozzi. Ethylenediamine-N,N′-Disuccinic Acid (EDDS)—Enhanced Flushing Optimization for Contaminated Agricultural Soil Remediation and Assessment of Prospective Cu and Zn Transport. International Journal of Environmental Research and Public Health. 2018; 15 (3):543.

Chicago/Turabian Style

Marco Race; Alberto Ferraro; Massimiliano Fabbricino; Agostino La Marca; Antonio Panico; Danilo Spasiano; Alice Tognacchini; Francesco Pirozzi. 2018. "Ethylenediamine-N,N′-Disuccinic Acid (EDDS)—Enhanced Flushing Optimization for Contaminated Agricultural Soil Remediation and Assessment of Prospective Cu and Zn Transport." International Journal of Environmental Research and Public Health 15, no. 3: 543.

Journal article
Published: 01 September 2017 in Journal of Environmental Engineering
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O. Achouri; A. Panico; M. Bencheikh-Lehocine; K. Derbal; F. Pirozzi. Effect of Chemical Coagulation Pretreatment on Anaerobic Digestion of Tannery Wastewater. Journal of Environmental Engineering 2017, 143, 04017039 .

AMA Style

O. Achouri, A. Panico, M. Bencheikh-Lehocine, K. Derbal, F. Pirozzi. Effect of Chemical Coagulation Pretreatment on Anaerobic Digestion of Tannery Wastewater. Journal of Environmental Engineering. 2017; 143 (9):04017039.

Chicago/Turabian Style

O. Achouri; A. Panico; M. Bencheikh-Lehocine; K. Derbal; F. Pirozzi. 2017. "Effect of Chemical Coagulation Pretreatment on Anaerobic Digestion of Tannery Wastewater." Journal of Environmental Engineering 143, no. 9: 04017039.

Journal article
Published: 01 August 2017 in Safety Science
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Wastewater disposal systems are complex systems composed by several interconnected elements. In the aftermath of dramatic natural events, such as the earthquake, the failure of any of these elements can result in the deterioration of the environment as well as in the risk for the exposed population, due to leakage of untreated or un-properly treated wastewater on soil and/or its discharge into superficial waters. This paper presents a multi-disciplinary methodology for the evaluation of the seismic vulnerability of municipal or industrial wastewater treatment plants, based on damage observation of available earthquake reports. Specific fragility curves and threshold values expressed in terms of Peak Ground Acceleration (PGA) are presented and compared with existing functions. The methodology fully comply requirements of most relevant and effective risk analysis tools or for land-use planning and can be adopted for the definition of structural priorities of plants.

ACS Style

Antonio Panico; A. Basco; G. Lanzano; F. Pirozzi; F. Santucci de Magistris; G. Fabbrocino; E. Salzano. Evaluating the structural priorities for the seismic vulnerability of civilian and industrial wastewater treatment plants. Safety Science 2017, 97, 51 -57.

AMA Style

Antonio Panico, A. Basco, G. Lanzano, F. Pirozzi, F. Santucci de Magistris, G. Fabbrocino, E. Salzano. Evaluating the structural priorities for the seismic vulnerability of civilian and industrial wastewater treatment plants. Safety Science. 2017; 97 ():51-57.

Chicago/Turabian Style

Antonio Panico; A. Basco; G. Lanzano; F. Pirozzi; F. Santucci de Magistris; G. Fabbrocino; E. Salzano. 2017. "Evaluating the structural priorities for the seismic vulnerability of civilian and industrial wastewater treatment plants." Safety Science 97, no. : 51-57.

Journal article
Published: 01 June 2017 in International Journal of Hydrogen Energy
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Nirakar Pradhan; Laura Dipasquale; Giuliana D'Ippolito; Antonio Panico; Piet Nicolaas Luc Lens; Giovanni Esposito; Angelo Fontana. Hydrogen and lactic acid synthesis by the wild-type and a laboratory strain of the hyperthermophilic bacterium Thermotoga neapolitana DSMZ 4359 T under capnophilic lactic fermentation conditions. International Journal of Hydrogen Energy 2017, 42, 16023 -16030.

AMA Style

Nirakar Pradhan, Laura Dipasquale, Giuliana D'Ippolito, Antonio Panico, Piet Nicolaas Luc Lens, Giovanni Esposito, Angelo Fontana. Hydrogen and lactic acid synthesis by the wild-type and a laboratory strain of the hyperthermophilic bacterium Thermotoga neapolitana DSMZ 4359 T under capnophilic lactic fermentation conditions. International Journal of Hydrogen Energy. 2017; 42 (25):16023-16030.

Chicago/Turabian Style

Nirakar Pradhan; Laura Dipasquale; Giuliana D'Ippolito; Antonio Panico; Piet Nicolaas Luc Lens; Giovanni Esposito; Angelo Fontana. 2017. "Hydrogen and lactic acid synthesis by the wild-type and a laboratory strain of the hyperthermophilic bacterium Thermotoga neapolitana DSMZ 4359 T under capnophilic lactic fermentation conditions." International Journal of Hydrogen Energy 42, no. 25: 16023-16030.

Journal article
Published: 10 May 2017 in Energies
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Solid-liquid extraction (adsorption or ion exchange) is a promising approach for the in situ separation of organic acids from fermentation broths. In this study, a diluted concentration of lactic acid ( 0.96) and the pseudo-second order kinetic model (R2 ~ 1) fitted better to the experimental data than the other models tested. Postulating the conditions for the real fermentation broth (pH: 5.0–6.5 and temperature: 30–80 °C), the resin AMB400 represents an ideal candidate for the extraction of lactic acid during fermentation.

ACS Style

Nirakar Pradhan; Eldon R. Rene; Piet N. L. Lens; Laura DiPasquale; Giuliana D’Ippolito; Angelo Fontana; Antonio Panico; Giovanni Esposito. Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies. Energies 2017, 10, 665 .

AMA Style

Nirakar Pradhan, Eldon R. Rene, Piet N. L. Lens, Laura DiPasquale, Giuliana D’Ippolito, Angelo Fontana, Antonio Panico, Giovanni Esposito. Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies. Energies. 2017; 10 (5):665.

Chicago/Turabian Style

Nirakar Pradhan; Eldon R. Rene; Piet N. L. Lens; Laura DiPasquale; Giuliana D’Ippolito; Angelo Fontana; Antonio Panico; Giovanni Esposito. 2017. "Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies." Energies 10, no. 5: 665.

Review
Published: 02 May 2017 in Biotechnology for Biofuels
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Recently, issues concerning the sustainable and harmless disposal of organic solid waste have generated interest in microbial biotechnologies aimed at converting waste materials into bioenergy and biomaterials, thus contributing to a reduction in economic dependence on fossil fuels. To valorize biomass, waste materials derived from agriculture, food processing factories, and municipal organic waste can be used to produce biopolymers, such as biohydrogen and biogas, through different microbial processes. In fact, different bacterial strains can synthesize biopolymers to convert waste materials into valuable intracellular (e.g., polyhydroxyalkanoates) and extracellular (e.g., exopolysaccharides) bioproducts, which are useful for biochemical production. In particular, large numbers of bacteria, including Alcaligenes eutrophus, Alcaligenes latus, Azotobacter vinelandii, Azotobacter chroococcum, Azotobacter beijerincki, methylotrophs, Pseudomonas spp., Bacillus spp., Rhizobium spp., Nocardia spp., and recombinant Escherichia coli, have been successfully used to produce polyhydroxyalkanoates on an industrial scale from different types of organic by-products. Therefore, the development of high-performance microbial strains and the use of by-products and waste as substrates could reasonably make the production costs of biodegradable polymers comparable to those required by petrochemical-derived plastics and promote their use. Many studies have reported use of the same organic substrates as alternative energy sources to produce biogas and biohydrogen through anaerobic digestion as well as dark and photofermentation processes under anaerobic conditions. Therefore, concurrently obtaining bioenergy and biopolymers at a reasonable cost through an integrated system is becoming feasible using by-products and waste as organic carbon sources. An overview of the suitable substrates and microbial strains used in low-cost polyhydroxyalkanoates for biohydrogen and biogas production is given. The possibility of creating a unique integrated system is discussed because it represents a new approach for simultaneously producing energy and biopolymers for the plastic industry using by-products and waste as organic carbon sources.

ACS Style

Giorgia Pagliano; Valeria Ventorino; Antonio Panico; Olimpia Pepe. Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes. Biotechnology for Biofuels 2017, 10, 1 -24.

AMA Style

Giorgia Pagliano, Valeria Ventorino, Antonio Panico, Olimpia Pepe. Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes. Biotechnology for Biofuels. 2017; 10 (1):1-24.

Chicago/Turabian Style

Giorgia Pagliano; Valeria Ventorino; Antonio Panico; Olimpia Pepe. 2017. "Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes." Biotechnology for Biofuels 10, no. 1: 1-24.

Journal article
Published: 10 February 2017 in Environmental Technology
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The removal of polycyclic aromatic hydrocarbons (PAHs) from a naturally co-contaminated soil by PAHs and heavy metals with an initial concentration of 620 mg of total PAHs kg−1 dry soil was investigated. The efficiency of landfarming in removing phenanthrene, pyrene, benzo(a)pyrene and the group of total 16 US EPA PAHs was evaluated. The process was biostimulated by adding centrifuged activated sewage sludge (SS) as an organic amendment. The tested ratios of contaminated soil to SS were 1:2, 1:1, 1:0.5 and 1:0 as wet weight basis. The process performance was monitored through chemical, microbiological and ecotoxicological analyses during 105 days of incubation. The results of analyses demonstrated that the treatment without centrifuged SS achieved a significantly higher total 16 US EPA PAH removal efficiency (i.e. 32%) compared to treatments with amendment. In the same treatment, the removal efficiency of the PAH bioavailable fraction was 100% for phenanthrene, benzo(a)pyrene and the group of total 16 US EPA PAHs, whereas 76% for pyrene. Ecotoxicity test performed with bioluminescent bacteria Vibrio fischeri confirmed the effectiveness of landfarming. Finally, the results showed that indigenous microorganisms under certain and controlled operating conditions have greater potential for PAH biodegradation compared to allochthonous microorganisms.

ACS Style

Borislava Lukić; David Huguenot; Antonio Panico; Eric D. van Hullebusch; Giovanni Esposito. Influence of activated sewage sludge amendment on PAH removal efficiency from a naturally contaminated soil: application of the landfarming treatment. Environmental Technology 2017, 38, 2988 -2998.

AMA Style

Borislava Lukić, David Huguenot, Antonio Panico, Eric D. van Hullebusch, Giovanni Esposito. Influence of activated sewage sludge amendment on PAH removal efficiency from a naturally contaminated soil: application of the landfarming treatment. Environmental Technology. 2017; 38 (23):2988-2998.

Chicago/Turabian Style

Borislava Lukić; David Huguenot; Antonio Panico; Eric D. van Hullebusch; Giovanni Esposito. 2017. "Influence of activated sewage sludge amendment on PAH removal efficiency from a naturally contaminated soil: application of the landfarming treatment." Environmental Technology 38, no. 23: 2988-2998.