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Ana Margarida Fonseca is Associate Professor at the Faculty of Science and Technology, University Fernando Pessoa, Porto, Portugal. Graduated in Chemical Engineering (1992) and PhD in Chemical Engineering (1999) - Faculty of Engineering of University of Porto. Investigator at FP-ENAS, UFP Energy, Environment and Health Research Unit. She has over 25 years of experience in environmental sustainability issues, from environmental engineering and technology to environmental management and corporate social responsibility. Among other works, she has published, with peer review, 17 WOS scientific articles in international journals, 2 international book chapters and 16 papers in national and international conferences. Her Scopus h-index is 7, with 135 citations, and in Google Scholar her h-index is 9 with 254 citations. Main research interests: sustainability management; corporate social responsibility; environmental management; indoor air quality; environmental engineering
Adequately understanding the role of context factors in the successful development of corporate sustainability-oriented initiatives is an important step towards an integrative vision of sustainability at the organizational level. In the present research, an extensive and structured literature review enabled the identification of 19 context factors relevant for sustainability integration processes. The importance of these context factors was confirmed through a quantitative exploratory research with 156 experienced sustainability professionals from 42 different countries. The results obtained reveal that Commitment, Engagement, Information, Communication and Trust have the highest levels of perceived importance. The results also indicate that the relative importance of these context factors is higher for small and medium sized companies and for companies located in countries with lower Gross Domestic Product. The role of the context factors was analyzed on the scope of the operational stages of a strategic management framework focusing corporate sustainability integration – the Integrative Sustainability Intelligence model. The main contributions of this paper are: the identification of context factors relevant for corporate sustainability integration processes, combining the perspectives of scholars and sustainability professionals; the analysis of the role of the most relevant context factors in the strategic management of corporate sustainability integration processes, enabling the identification of pathways to promote their successful operationalization.
Ana Fonseca; Isabel Abreu; Winston Jerónimo Silvestre. Investigating context factors in the strategic management of corporate sustainability integration. Journal of Cleaner Production 2021, 314, 128002 .
AMA StyleAna Fonseca, Isabel Abreu, Winston Jerónimo Silvestre. Investigating context factors in the strategic management of corporate sustainability integration. Journal of Cleaner Production. 2021; 314 ():128002.
Chicago/Turabian StyleAna Fonseca; Isabel Abreu; Winston Jerónimo Silvestre. 2021. "Investigating context factors in the strategic management of corporate sustainability integration." Journal of Cleaner Production 314, no. : 128002.
Construction and Demolition Waste (CDW) cause environmental impacts in a worldwide scale. The existing international concern regarding the adequate management of CDW is justified by the large amount of this waste produced in a daily basis, together with its potential hazardous effects on ecosystems and human health. In countries with growing economies, like Brazil, it is of the utmost importance to promote sustainability-oriented practices that can co-exist with economic development. In this scope, the present research proposes strategies regarding the management of CDW based on the Circular Economy principles, focusing the case study of the municipality of Manaus, in the centre of the Amazon Forest. The characterization of the reference situation regarding CDW management in Manaus revealed several deficiencies, namely the lack of reuse and recycling opportunities, the unsupervised disposal of CDW in illegal landfills, together with insufficient surveillance procedures and inadequate policies from regional authorities like the Manaus City Hall and the Amazon’s Regional Council of Engineering and Agronomy (CREA-AM). The acknowledgement of these problems led to the identification of improvement opportunities and to the development and operationalization of Circular Economy promotion strategies: valorisation of CDW through the enhancement of reuse and recycling opportunities, operationalized through a mobile phone application; inclusion of sensibilization and surveillance practices regarding professional activities related to CDW management on the CREA-AM inspection plan; and the proposal of alterations in the municipal policies regarding CDW disposal in the public landfill. These strategies have been implemented in the Manaus municipality, but are easily adaptable to other Brazilian municipalities and even to other countries’ realities.
Maria Do Perpétuo Socorro Lamego Oliveira; Evailton Arantes de Oliveira; Ana Fonseca. Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil. 2021, 1 .
AMA StyleMaria Do Perpétuo Socorro Lamego Oliveira, Evailton Arantes de Oliveira, Ana Fonseca. Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil. . 2021; ():1.
Chicago/Turabian StyleMaria Do Perpétuo Socorro Lamego Oliveira; Evailton Arantes de Oliveira; Ana Fonseca. 2021. "Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil." , no. : 1.
Monitoring water quality in urban stream is of utmost importance for water resources managers, who are pressured to optimize monitoring schemes in order to reduce costs. The present study aims to use the results of a 2-year-long water quality monitoring program of an urban stream in Portugal to identify improvement opportunities. The urban stream under study was subjected to wastewater treatment plants effluent discharges, leachates from a major sealed landfill, low-class housing effluents, and nonpoint sources of pollution. Contributing watersheds are mostly artificial surfaces and agricultural land, which irrigate directly from the river. River water quality was evaluated on 11 sampling locations for 24 months from October 2013 to September 2015. The present paper describes statistical analysis of the results obtained for 12 physicochemical parameters in order to optimize the monitoring scheme. Cluster analysis detected a seasonal variation in the water quality and a spatial pattern based on the major point sources of pollution. A factor analysis showed that the parameters that mostly contribute to water quality assessment in this urban river are alkalinity, ammonia, electrical conductivity, pH, temperature, and dissolved oxygen. Results suggest that the monitoring efforts—and associated costs—may be reduced by decreasing monitoring frequency, sampling points, and monitored parameters. The statistical analysis described in this study may be replicated in other water quality monitoring programs, providing useful and important information for the systematic and iterative assessment of the adequacy of water quality sampling programs towards a sustainable management of water quality surveillance.
Maria Simas Guerreiro; Isabel Maria Abreu; Álvaro Monteiro; Teresa Jesus; Ana Fonseca. Considerations on the monitoring of water quality in urban streams: a case study in Portugal. Environmental Monitoring and Assessment 2020, 192, 1 -11.
AMA StyleMaria Simas Guerreiro, Isabel Maria Abreu, Álvaro Monteiro, Teresa Jesus, Ana Fonseca. Considerations on the monitoring of water quality in urban streams: a case study in Portugal. Environmental Monitoring and Assessment. 2020; 192 (6):1-11.
Chicago/Turabian StyleMaria Simas Guerreiro; Isabel Maria Abreu; Álvaro Monteiro; Teresa Jesus; Ana Fonseca. 2020. "Considerations on the monitoring of water quality in urban streams: a case study in Portugal." Environmental Monitoring and Assessment 192, no. 6: 1-11.
Organizations have been showing a growing awareness regarding the importance of corporate sustainability. However, the integration of sustainability concerns in companies' long-term planning, strategic management, processes, and activities is still challenging, disconnected, and often conducted in isolation. Based on a qualitative exploratory research combining different perspectives found in the literature, the present research presents a theoretical framework that is expected to enhance the adequate development and management of organizational sustainability-oriented practices — the Integrative Sustainable Intelligence model. This model provides organizational managers with a structured framework to adequately understand, select, implement and assess sustainability promoting actions, based on the development of structural and systematic disruptive tools and involving the exchange of collaborative ideas between organizational stakeholders. The adoption of the Integrative Sustainable Intelligence model is expected to foster change processes and innovations in the search for solutions for sustainability-oriented business models.
Ana Fonseca. Integrative Sustainable Intelligence: A holistic model to integrate corporate sustainability strategies. Corporate Social Responsibility and Environmental Management 2020, 27, 1 .
AMA StyleAna Fonseca. Integrative Sustainable Intelligence: A holistic model to integrate corporate sustainability strategies. Corporate Social Responsibility and Environmental Management. 2020; 27 (4):1.
Chicago/Turabian StyleAna Fonseca. 2020. "Integrative Sustainable Intelligence: A holistic model to integrate corporate sustainability strategies." Corporate Social Responsibility and Environmental Management 27, no. 4: 1.
Maria Oliveira; Evailton Arantes de Oliveira; Adriano De Abreu Wanderley; Arlene Maria Lamego Da Silva Campos; Ana Fonseca. Gestión inteligente de residuos de obras de construcción: tecnología de aplicaciones móviles en la ciudad de Manaus, Amazonas, Brasil. International Conference Virtual City and Territory 2019, 1 .
AMA StyleMaria Oliveira, Evailton Arantes de Oliveira, Adriano De Abreu Wanderley, Arlene Maria Lamego Da Silva Campos, Ana Fonseca. Gestión inteligente de residuos de obras de construcción: tecnología de aplicaciones móviles en la ciudad de Manaus, Amazonas, Brasil. International Conference Virtual City and Territory. 2019; (13):1.
Chicago/Turabian StyleMaria Oliveira; Evailton Arantes de Oliveira; Adriano De Abreu Wanderley; Arlene Maria Lamego Da Silva Campos; Ana Fonseca. 2019. "Gestión inteligente de residuos de obras de construcción: tecnología de aplicaciones móviles en la ciudad de Manaus, Amazonas, Brasil." International Conference Virtual City and Territory , no. 13: 1.
This research aimed the characterization of the current production of construction waste in the city of Manaus, Amazonas, Brazil, and its impacts on the environment of the Amazon Region. The significance of this research work is to contribute to the improvement of the environmental management of waste in the construction sites of the city of Manaus, with the aim of preserving the Amazonian environment. This research also sought to characterize the existing problems in the environmental management of construction waste in four construction sites, with areas greater than 9,000 square meters. The methodology adopted was based on the application of an in situ survey in four construction sites in the city of Manaus, Amazonas, Brazil, administered by three companies representing the construction sector in the Amazon Region. Data were collected at the construction sites in question in the second half of 2018, regarding the types of construction waste produced, respective volumes, destination and associated costs. A comparison was made between constructed areas and volumes of waste produced, characterizing the current situation of construction waste production in the city of Manaus. After analysing the results obtained, it was concluded that due to the high associated costs, companies avoid recycling construction waste, and opt to discharge it in municipal or clandestine landfills, with significant environmental impacts. For this reason, a greater participation of the Public Administration is recommended regarding the adequate management of waste in construction sites, namely offering financial incentives for companies to promote the recycling and reuse of construction waste.
Maria Do P. S. Lamêgo Oliveira; Evailton Arantes De Oliveira; Reginaldo Da Rocha Freitas; Arlene M. Lamêgo Da S. Campos; Ana Margarida Fonseca. Waste Management at Construction Sites in the Municipality of Manaus, Amazonas, Brazil: Characterization of the Current Situation. Current World Environment 2019, 14, 326 -335.
AMA StyleMaria Do P. S. Lamêgo Oliveira, Evailton Arantes De Oliveira, Reginaldo Da Rocha Freitas, Arlene M. Lamêgo Da S. Campos, Ana Margarida Fonseca. Waste Management at Construction Sites in the Municipality of Manaus, Amazonas, Brazil: Characterization of the Current Situation. Current World Environment. 2019; 14 (2):326-335.
Chicago/Turabian StyleMaria Do P. S. Lamêgo Oliveira; Evailton Arantes De Oliveira; Reginaldo Da Rocha Freitas; Arlene M. Lamêgo Da S. Campos; Ana Margarida Fonseca. 2019. "Waste Management at Construction Sites in the Municipality of Manaus, Amazonas, Brazil: Characterization of the Current Situation." Current World Environment 14, no. 2: 326-335.
In organizational sustainability, the economic dimension is recognized as having a very important role. However, the discussion regarding whether it is exclusively the economic dimension that has the power to induce the other sustainability dimensions is far from agreement. The purpose of the present paper is to analyze the perceptions regarding the existence of mutual influences between the economic dimension of sustainability and the other sustainability dimensions – environmental, social and cultural – in a relevant Portuguese economic sector: the metal industry. The analysis and statistical tests performed with the 211 collected answers led to the conclusion that the influence exerted by the economic dimension on the other sustainability dimensions is perceived as dominant, both in present and future perspectives. The results also show the perception that the economic dimension is equally influenced by the environmental and social dimensions, and in a less extent, by the cultural dimension, and that all these mutual influences are perceived to increase in the future. The existence of organizational management systems has a positive effect on the perceptions regarding the existence of mutual influences between sustainability dimensions, but only for those companies with more than one certified management system. These results confirm that organizational management systems are connected to higher degrees of awareness regarding sustainability issues. Given that the great majority of the sampled industries are SMEs, the results obtained in this research demonstrate that the existence of mutual influences between sustainability dimensions is recognized even in small-sized industries.
J. Armindo; A. Fonseca; I. Abreu; T. Toldy. Is the economic dimension inducing the other sustainability dimensions, or is it the reverse? Perceptions from the Portuguese metal industry. International Journal of Sustainable Development & World Ecology 2019, 26, 571 -582.
AMA StyleJ. Armindo, A. Fonseca, I. Abreu, T. Toldy. Is the economic dimension inducing the other sustainability dimensions, or is it the reverse? Perceptions from the Portuguese metal industry. International Journal of Sustainable Development & World Ecology. 2019; 26 (7):571-582.
Chicago/Turabian StyleJ. Armindo; A. Fonseca; I. Abreu; T. Toldy. 2019. "Is the economic dimension inducing the other sustainability dimensions, or is it the reverse? Perceptions from the Portuguese metal industry." International Journal of Sustainable Development & World Ecology 26, no. 7: 571-582.
According to “The 2030 Agenda for Sustainable Development” of the United Nations, there are seventeen goals essential for the World Sustainable Development. One of these goals has direct implication for the industrial sector – ensure sustainable consumption and production patterns. In a world where globalization is more and more present, packaging emerges as a link between all points around the world, allowing transporting and commercializing products on a global level, from producers to consumers. Therefore, it is necessary to study how the packaging industry is adapting itself to the increasing demands of the markets, while complying with the global environmental requirements and sustainable goals established by international organizations. Accordingly, this paper aims to analyse precisely this industry, intending to understand how the theme of Eco-design and sustainability are faced by packaging manufacturers, and what are the key-factors associated to the success of their implementation in the companies. Characterization of the industry is also presented, defining how companies should organize and prepare themselves in order to have a diminishing environmental impact, a raw-materials sustainability policy and consider environmental aspects through the packaging’s life cycle – Eco-design.
J. Monteiro; F.J.G. Silva; S.F. Ramos; R.D.S.G. Campilho; A.M. Fonseca. Eco-Design and Sustainability in Packaging: A Survey. Procedia Manufacturing 2019, 38, 1741 -1749.
AMA StyleJ. Monteiro, F.J.G. Silva, S.F. Ramos, R.D.S.G. Campilho, A.M. Fonseca. Eco-Design and Sustainability in Packaging: A Survey. Procedia Manufacturing. 2019; 38 ():1741-1749.
Chicago/Turabian StyleJ. Monteiro; F.J.G. Silva; S.F. Ramos; R.D.S.G. Campilho; A.M. Fonseca. 2019. "Eco-Design and Sustainability in Packaging: A Survey." Procedia Manufacturing 38, no. : 1741-1749.
Adequate management of indoor air quality (IAQ) in healthcare units has relevant impacts on sustainability performance due to its effects on patient safety, occupational health and safety, and energy consumptions. This study sought to identify improvement opportunities on IAQ management by collecting and analyzing experimental data of selected parameters in three healthcare units in Portugal: Two general hospitals and one primary healthcare center. Indoor air temperature, relative humidity, CO2, bacteria, and fungi concentrations were measured in summer and winter campaigns in June/July 2017 and in January/March 2018. Results show that the exclusive use of natural ventilation is not adequate when the affluence of users is high, but the analyzed parameters revealed acceptable results under low occupation intensity conditions. Results also show that keeping low indoor air relative humidity has a significant impact in reducing fungi concentration and that there is a significant correlation at the 0.05 level between indoor air CO2 concentration and bacterial loads. Therefore, as opportunities to improve sustainability, IAQ management in healthcare facilities should consider natural ventilation as a complement to mechanical ventilation systems and should focus on adequate control of indoor air relative humidity and CO2 concentration to reduce the risk of airborne infections.
Ana Fonseca; Isabel Abreu; Maria João Guerreiro; Cristina Abreu; Ricardo Silva; Nelson Barros. Indoor Air Quality and Sustainability Management—Case Study in Three Portuguese Healthcare Units. Sustainability 2018, 11, 101 .
AMA StyleAna Fonseca, Isabel Abreu, Maria João Guerreiro, Cristina Abreu, Ricardo Silva, Nelson Barros. Indoor Air Quality and Sustainability Management—Case Study in Three Portuguese Healthcare Units. Sustainability. 2018; 11 (1):101.
Chicago/Turabian StyleAna Fonseca; Isabel Abreu; Maria João Guerreiro; Cristina Abreu; Ricardo Silva; Nelson Barros. 2018. "Indoor Air Quality and Sustainability Management—Case Study in Three Portuguese Healthcare Units." Sustainability 11, no. 1: 101.
The growing interest of stakeholders regarding the contribution of organizations to Sustainable Development is influencing organizational behavior and strategic planning. The purpose of the present paper is to analyze the perception of the importance of organizational sustainability dimensions in a relevant economic sector: the metal industry. Survey data was collected from a sample of 211 Portuguese industries, and non-parametric statistical tests were used to validate five research hypotheses regarding the importance of the economic, environmental, social and cultural dimensions of sustainability. The results obtained demonstrate awareness of the sampled industries regarding all sustainability dimensions, recognizing that their importance has been increasing over the years, and prospecting that this importance will continue to increase in the future. The industries in this sample revealed different degrees of perceived importance for the different sustainability dimensions: the highest importance was given to the economic dimension, and culture was considered the least important sustainability dimension. However, the perception of the respondents is that these differences will be less relevant in the future. The results also show that companies with certified management systems reveal a higher perceived importance regarding sustainability dimensions. Also, industries with higher values of annual turnover, number of employees and export sales tend to give higher degrees of importance to sustainability dimensions. Considering the economic, environmental and social impacts of metal industries at an international level, the awareness of this industrial sector regarding the importance of sustainability is a relevant step to the commitment towards Sustainable Development.
J. Armindo; A. Fonseca; I. Abreu; T. Toldy. Perceived importance of sustainability dimensions in the Portuguese metal industry. International Journal of Sustainable Development & World Ecology 2018, 26, 154 -165.
AMA StyleJ. Armindo, A. Fonseca, I. Abreu, T. Toldy. Perceived importance of sustainability dimensions in the Portuguese metal industry. International Journal of Sustainable Development & World Ecology. 2018; 26 (2):154-165.
Chicago/Turabian StyleJ. Armindo; A. Fonseca; I. Abreu; T. Toldy. 2018. "Perceived importance of sustainability dimensions in the Portuguese metal industry." International Journal of Sustainable Development & World Ecology 26, no. 2: 154-165.
Purpose The purpose of this paper is to apply quality management tools and practices in the design of an integrated accreditation model for Local Health Trusts, in order to contribute to the sustainability of the Portuguese Primary HealthCare Service. Following the guidelines of the Portuguese Health Quality Strategy, the proposed model is an adaptation of the model from Agencia para la Calidad Sanitaria de Andaluzia. Design/methodology/approach The development of the integrated accreditation model was based on a literature review, complemented with observation and analysis of the usual working methods in a Local Health Trust (Western Oporto Health Trust). Findings Local Health Trusts include not only clinical management units but also non-clinical administrative units. Therefore, the National Model for Accreditation of HealthCare Institutions is not easily or directly applicable to them. To overcome this problem, the model proposed in this study incorporates ISO 9001 principles, widely accepted regarding organizational management. The success of the application of this model is highly dependent on the ability of public Primary HealthCare organizations to deal with potential problems such as resistance to change, lack of leadership and inadequate people management and involvement. Originality/value The integrated accreditation model proposed in this research is expected to promote the cohesion of Local Health Trust units, encouraging integrated quality management practices and continuous improvement strategies, leading Local Health Trusts, Primary Care and HealthCare in a global perspective toward sustainability.
Sónia Duarte Silva; Ana Fonseca. Portuguese primary healthcare – sustainability through quality management. International Journal of Quality & Reliability Management 2017, 34, 251 -264.
AMA StyleSónia Duarte Silva, Ana Fonseca. Portuguese primary healthcare – sustainability through quality management. International Journal of Quality & Reliability Management. 2017; 34 (2):251-264.
Chicago/Turabian StyleSónia Duarte Silva; Ana Fonseca. 2017. "Portuguese primary healthcare – sustainability through quality management." International Journal of Quality & Reliability Management 34, no. 2: 251-264.
A mathematical model describing the dry-scrubbing of gaseous hydrogen chloride (HCl) with solid hydrated lime particles (Ca(OH)2) was developed and experimentally verified. The model applies to cyclone systems with and without recirculation, where reaction and particle collection occurs in the same processing unit. The Modified Grain Model was selected to describe the behavior of the reaction process and it was assumed that the gas and the solid particles flow in the reactor with a plug flow. In this work, this behavior is approximated by a cascade of N CSTRs in series. Some of the model parameters were estimated by optimization taking into account the experimental results obtained. A good agreement was observed between the experimental results and those predicted by the model, where the main control resistance is the diffusion of the gaseous reactant in the layer of solid product formed.
Vania G. Chibante; Ana M. Fonseca; Romualdo R. Salcedo. Modeling dry-scrubbing of gaseous HCl with hydrated lime in cyclones with and without recirculation. Journal of Hazardous Materials 2010, 178, 469 -482.
AMA StyleVania G. Chibante, Ana M. Fonseca, Romualdo R. Salcedo. Modeling dry-scrubbing of gaseous HCl with hydrated lime in cyclones with and without recirculation. Journal of Hazardous Materials. 2010; 178 (1-3):469-482.
Chicago/Turabian StyleVania G. Chibante; Ana M. Fonseca; Romualdo R. Salcedo. 2010. "Modeling dry-scrubbing of gaseous HCl with hydrated lime in cyclones with and without recirculation." Journal of Hazardous Materials 178, no. 1-3: 469-482.
Vania G. Chibante; Ana Fonseca; Romualdo R. Salcedo. Comparing the Performance of Recirculating Cyclones Applied to the Dry Scrubbing of Gaseous HCl with Hydrated Lime. Industrial & Engineering Chemistry Research 2008, 48, 1029 -1035.
AMA StyleVania G. Chibante, Ana Fonseca, Romualdo R. Salcedo. Comparing the Performance of Recirculating Cyclones Applied to the Dry Scrubbing of Gaseous HCl with Hydrated Lime. Industrial & Engineering Chemistry Research. 2008; 48 (2):1029-1035.
Chicago/Turabian StyleVania G. Chibante; Ana Fonseca; Romualdo R. Salcedo. 2008. "Comparing the Performance of Recirculating Cyclones Applied to the Dry Scrubbing of Gaseous HCl with Hydrated Lime." Industrial & Engineering Chemistry Research 48, no. 2: 1029-1035.
This paper describes a laboratory-scale study on the use of recirculating cyclones as reaction chambers for dry scrubbing of gaseous HCl with solid slaked lime particles. This gas cleaning system combines a numerically optimized reverse flow gas cyclone (RS_VHE geometry) with a straight-through cyclone concentrator, which simultaneously increases the capture of the solid particles and promotes their partial recirculation. A laboratory-scale study was undertaken to test this technology and to compare its performance to a modified Stairmand HE reverse flow cyclone without recirculation. The experimental conditions were: reaction temperature ≈326 K, gas flow rate ≈2.9 × 10−4 N m3 s−1 and relative humidity of the gas ≈8.5%. The experimental variables tested were the solids load (1.0–9.2 × 10−7 kg s−1) and HCl concentration (0.4–2.8 × 10−2 mol m−3) in the inlet gas. The experimentally obtained particulate removal efficiencies with the recirculating cyclones (≈98%) were higher than those obtained with the Stairmand HE cyclone (≈93%), with the additional advantage of having significantly lower pressure drop. As for the acid removal efficiencies (≈10–96%), no significant differences were found between the two systems tested under the same experimental conditions. The possibility of using optimized recirculating cyclones for gas cleaning in a dry scrubbing process is very promising, since this is a low cost technology, highly efficient both for the removal of acid gases and for the capture of solid particles, which has the advantage of not requiring a post-reaction de-duster.
Vânia Chibante; Ana Fonseca; Romualdo Salcedo. Dry scrubbing of acid gases in recirculating cyclones. Journal of Hazardous Materials 2007, 144, 682 -686.
AMA StyleVânia Chibante, Ana Fonseca, Romualdo Salcedo. Dry scrubbing of acid gases in recirculating cyclones. Journal of Hazardous Materials. 2007; 144 (3):682-686.
Chicago/Turabian StyleVânia Chibante; Ana Fonseca; Romualdo Salcedo. 2007. "Dry scrubbing of acid gases in recirculating cyclones." Journal of Hazardous Materials 144, no. 3: 682-686.
This paper addresses the theoretical development and experimental validation of optimized recirculating reverse-flow gas cyclones. The simulation of these systems is based on the predictive properties of a finite diffusivity model, modified to include partial recirculation of the cyclones' emissions. Experimental validation was obtained at laboratory and pilot scales at low temperatures (up to 350 K) and for cork waste biomass boilers at higher temperatures (up to 600 K). Under certain circumstances, with recirculation, the proposed system showed a better performance than an online pulse jet bag filter, and substantially better than with multicyclone systems. The generally observed unexpected high collection of submicron particles, which occurs with inlet concentrations as low as 100 μg/m3, is attributed to turbulent dispersion, either by promoting fine particle capture by larger ones, much like what occurs in recirculating fluidized beds, or by bringing fine particles near the cyclone wall. The extremely fine particle size distributions exiting from the recirculation system, as measured off-line at laboratory, pilot and industrial scales, were confirmed at pilot scale using online measurements through a laser monitor.
R.L.R. Salcedo; V.G. Chibante; A.M. Fonseca; G. Cândido. Fine particle capture in biomass boilers with recirculating gas cyclones: Theory and practice. Powder Technology 2007, 172, 89 -98.
AMA StyleR.L.R. Salcedo, V.G. Chibante, A.M. Fonseca, G. Cândido. Fine particle capture in biomass boilers with recirculating gas cyclones: Theory and practice. Powder Technology. 2007; 172 (2):89-98.
Chicago/Turabian StyleR.L.R. Salcedo; V.G. Chibante; A.M. Fonseca; G. Cândido. 2007. "Fine particle capture in biomass boilers with recirculating gas cyclones: Theory and practice." Powder Technology 172, no. 2: 89-98.
Ana M. Fonseca; José J. Órfão; Romualdo L. Salcedo. A new approach to the kinetic modeling of the reaction of gaseous HCl with solid lime at low temperatures. Chemical Engineering Science 2003, 58, 3499 -3506.
AMA StyleAna M. Fonseca, José J. Órfão, Romualdo L. Salcedo. A new approach to the kinetic modeling of the reaction of gaseous HCl with solid lime at low temperatures. Chemical Engineering Science. 2003; 58 (15):3499-3506.
Chicago/Turabian StyleAna M. Fonseca; José J. Órfão; Romualdo L. Salcedo. 2003. "A new approach to the kinetic modeling of the reaction of gaseous HCl with solid lime at low temperatures." Chemical Engineering Science 58, no. 15: 3499-3506.
Ana Fonseca; José J. Órfão; Romualdo L. Salcedo. Dry Scrubbing of Gaseous HCl with Solid Lime in a Cyclone Reactor at Low Temperatures. Industrial & Engineering Chemistry Research 2000, 40, 304 -313.
AMA StyleAna Fonseca, José J. Órfão, Romualdo L. Salcedo. Dry Scrubbing of Gaseous HCl with Solid Lime in a Cyclone Reactor at Low Temperatures. Industrial & Engineering Chemistry Research. 2000; 40 (1):304-313.
Chicago/Turabian StyleAna Fonseca; José J. Órfão; Romualdo L. Salcedo. 2000. "Dry Scrubbing of Gaseous HCl with Solid Lime in a Cyclone Reactor at Low Temperatures." Industrial & Engineering Chemistry Research 40, no. 1: 304-313.
Ana M. Fonseca; José J. Órfão; Romualdo L. Salcedo. Kinetic Modeling of the Reaction of HCl and Solid Lime at Low Temperatures. Industrial & Engineering Chemistry Research 1998, 37, 4570 -4576.
AMA StyleAna M. Fonseca, José J. Órfão, Romualdo L. Salcedo. Kinetic Modeling of the Reaction of HCl and Solid Lime at Low Temperatures. Industrial & Engineering Chemistry Research. 1998; 37 (12):4570-4576.
Chicago/Turabian StyleAna M. Fonseca; José J. Órfão; Romualdo L. Salcedo. 1998. "Kinetic Modeling of the Reaction of HCl and Solid Lime at Low Temperatures." Industrial & Engineering Chemistry Research 37, no. 12: 4570-4576.