Дисертації з теми "E-wastes recycling"
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Aissa, Khaled Omer Salem. "Recycling of Construction and Demolition Wastes (CDW)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Знайти повний текст джерелаGunja, Leela Sai Phani Kumar. "Sustainable management and recycling processes of various construction and demolition wastes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25773/.
Повний текст джерелаChrispim, Neto Jos? Padilha. "e-Res?duos: A influ?ncia da norma europ?ia WEEE na estrat?gia da ind?stria de celulares no Brasil e no mundo e o impacto ambiental do descarte inadequado." Universidade Federal do Rio Grande do Norte, 2007. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14868.
Повний текст джерелаThis present Thesis, is explorer work and presents an analysis of e-wastes of the industry of cellular mobile telephony, evaluating the evolution of the telecommunications nets and as if it holds the global and Brazilian market of cellular telephony. It approaches the elements gifts in the cellular devices that can badly cause to the environment and the health, the discarding of the devices in end of life cycle is made. It analyzes the new European regulation of electric equipment residues and electronic, the WEEE, as it influenced the strategy of the companies manufacturers of mobile phone cellular and of that she forms is possible to create a Brazilian national industry for recycling of devices of cellular, with conditions to globally competition. For this some possible models of being implanted in Brazil are presented. The project of law 203/91 on solid residues is argued and as it would be interesting if to persist some proposals presented to the project, to create a Brazilian market of recycling with capacity of global competition for use to advantage of the European regulation if to get a competitive advantage
O presente trabalho explorat?rio apresenta uma an?lise de e-res?duos da ind?stria de telefonia celular avaliando a evolu??o das redes de telecomunica??es e como se comporta o mercado global e brasileiro de telefonia celular. Aborda os elementos presentes nos aparelhos celulares que podem causar mal ao meio ambiente e a sa?de, como ? feito o descarte dos aparelhos em fim de ciclo de vida. Analisa a nova norma europ?ia de res?duos de equipamentos el?tricos e eletr?nicos, a WEEE, como ela influenciou a estrat?gia das empresas fabricantes de celulares e de que forma ? poss?vel criar uma ind?stria nacional para reciclagem de aparelhos de celulares, com condi??es de competir globalmente. Para isto s?o apresentados alguns modelos poss?veis de ser implantado no Brasil. ? discutido o projeto de lei 203/91 (Brasil, 2006) sobre res?duos s?lidos e como seria interessante manter algumas propostas apresentadas ao projeto, para se criar um mercado de reciclagem brasileiro com capacidade de competi??o global, para se aproveitar da norma Europ?ia de forma a se obter uma vantagem competitiva
Santos, Eder Carlos Guedes dos. "Aplicação de resíduos de construção e demolição reciclados (RCD-R) em estruturas de solo reforçado." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-10042007-110106/.
Повний текст джерелаThe intense population growth brings some environmental concerns due to the need of exploitation of natural resources, and the adoption of recycling policies is basic principle to reach sustainable development. In this scenario, however, the high potential of recycling the construction and demolition wastes (CDW) has been ignored. Moreover, studies focus mainly on the recycling of CDW for the production of aggregates for use in pavements and concrete. The present study deals with a new application of the recycled construction and demolition waste (RCDW) as backfill of reinforced soil structures. Characterization, direct shear and pullout tests on geogrids has depicted that RCDW shows low coefficients of variation of its properties and excellent mechanical behavior that justify its use for proposed application.
Vaz, Ana Claudia Nüernberg. "Avaliação de dois modelos de vermicompostagem para gerenciamento de resíduos orgânicos crus e aplicação como tema de educação ambiental no ensino formal." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2554.
Повний текст джерелаOf the total urban solid waste generated in Brazil, 51% is organic waste disposed in landfills. The National Solid Waste Policy is part of the National Environmental Policy and articulates with the National Environmental Education Policy, and indicates the recognition of reusable and recyclable solid waste as an economic good, of social value, as a promoter of citizenship, a generator of jobs and income. The organic waste generated at the Federal Technology University of Paraná - UTFPR campus Curitiba, served as a case study to evaluate the management and treatment of organic waste using vermicomposting, which requires less space and serves as a promoter of Environmental Education - EE for teaching. For the management of large-scale organic waste, such as UTFPR University Restaurant-UR, the separation of residues in the kitchen was verified, the amount generated during a week of both raw and leftover waste from the buffet and dish. Two models of vermidigestors were used in duplicate, one consisting of boxes with the bottom modified with holes and another with bars. The most commonly generated raw organic residues were leaves of lettuce, cabbage and cucumber peels. Each of these vegetables was chopped separately to compose the food substrate, and to form the initial substrate that goes into the vermidigestores, 10 kg of humus were added with 1.21 kg of earthworms othe species Eisenia fétida per m2. The experiment was conducted in 60 days with only one feeding application. Samples of vermicompost and leachate were collected every three days to analyze the parameters temperature, humidity, pH, amount of leachate, humic substances, Coliforms, Salmonella, C / N ratio, macro and micronutrients. The results presented average temperature of 23ºC; The average humidity of 81%; The pH remained constant at 7.7; Coliforms and Salmonella were found below the established limit, and the mean C / N ratio in vermicompost and manure was 10.8 / 1. The analysis of micro and macro nutrients indicated a fertilizer rich in nitrogen and high amount of iron for both models. It was observed that the model of vermidigestor with bars obtained better result when evaluating the decomposition of the labile organic matter, leachate flow and reproduction of the earthworm population, being this model the one indicated for large scale management. For small scale application the two models are suitable. The box vermicomposting technique was applied in the EE activity from a primary school, identifying the difficulties and questions of the teachers, provided subsidies for the development of two booklets, one for the infantile public and another one for the adult public.
MATTOS, CLEITON dos S. "Geração de resíduos sólidos de galvanoplastia em regiões densamente povoadas - avaliação, inertização e destinação." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9990.
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Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
Wong, Aidan Marc Yew Fai. "'Waste', value and informal labour : the regional e-waste recycling production network in Malaysia and Singapore." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/9068.
Повний текст джерелаSILVA, ANTONIO C. da. "Vidros e vitroceramicos com alta concentracao de metais obtidos a partir de residuos industriais." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11765.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Polu, Sai Kusuma. "Food waste management and nutrient recycling." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.
Знайти повний текст джерелаNaczaj, Dimitri. "Aspects graphiques de la persuasion technologique : étude des messages persuasifs sur internet pour le recyclage des déchets électroniques." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0619/document.
Повний текст джерелаThis thesis includes three experiments and two pre-tests (N = 1135) in which three fundamental aspects of static message design on the Internet are studied: its format (infographics, audio or text), its colour and typography, on the theme of electronic waste recycling (studies 1 and 2) and then on human migration (study 3).The study of graphic aspects is relevant if we want to increase the persuasive power of a message. The format plays a major role (study 1a), making it possible to change attitudes and to anchor this change over time. Colours, on the other hand, do not seem to vary the persuasive force of the message or to lead readers to act in favour of recycling (study 1b). Nor does typography seem to play a role in the persuasive dynamic, whether it is considered legible or difficult to read (study 2). Theoretical approaches regarding the personality of typographies and their coherence with the context are developed.The analysis of the components of the ELM revealed, in each study, the strong link between the attitude of individuals and their sense of personal responsibility towards the theme addressed as well as their a priori knowledge. We have also seen that the levers of persuasion are not systematically the same according to the need for cognition.We suggest that persuasive messages should adopt a format that allows for central analysis at low cognitive cost, using a main colour and typography that are both readable and consistent with the theme developed, with arguments that reinforce readers' sense of responsibility
PRADO, ULISSES S. do. "Nova alternativa para reaproveitamento do resíduo perigoso gerado na produção de alumínio primário (SPL): obtenção de vidros opacos e fritas." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11673.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP
Braglia, Michele. "Assessment of circular economy indicators in a multi-criteria approach along the plastic packaging value chain." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаHamdi, Meshal. "E-Waste Recycling System for Computers and Mobile Devices Using Green Chemistry." Digital Commons at Loyola Marymount University and Loyola Law School, 2015. https://digitalcommons.lmu.edu/etd/390.
Повний текст джерелаEdwards, Laura. "E-Waste Recycling: The Dirty Trade Between the United States and China." Scholarship @ Claremont, 2016. http://scholarship.claremont.edu/pomona_theses/153.
Повний текст джерелаWiesmeth, Hans, Dennis Häckl, Quang Trung Do, and Duy Cam Bui. "A holistic approach to recycling of CRT glass and PCBs in Vietnam." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-88442.
Повний текст джерелаSự gia tăng một cách nhanh chóng số lượng các chất thải từ các thiết bị điện, điện tử (WEEE) đòi hỏi sự tăng cường chú ý tới các chính sách môi trường toàn cầu. Các nước đang phát triển bị tác động đặc biệt bởi các hoạt động tái chế, do nó ảnh hưởng xấu tới sức khỏe và môi trường. Các phương pháp tổ hợp và toàn diện đối với các chính sách quản lý chất thải điện tử (WEEE) là đòi hỏi cấp thiết. Trong bài báo này, trước hết phân tích đánh giá các công nghệ tái chế thủy tinh đèn hình (thủy tinh CRT) và bản mạch in điện tử (PCBs) ở Việt Nam. Tiếp theo là phương pháp tiếp cận các chính sách quản lý chất thải điện tử của Cộng hòa liên bang Đức được sử dụng để điều chỉnh cho thích hợp nhằm đưa ra giải pháp tổ hợp có thể thích ứng cho việc tái chế màn hình Tivi và máy tính hỏng, hết hạn sử dụng và thải bỏ ở Việt Nam
ORTIZ, NILCE. "Estudo da utilizacao de magnetita como material adsorvedor dos metais Cusup(2+), Pbsup(2+), Nisup(2+) e Cdsup(2+), em solucao." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10825.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
OLIVEIRA, THAIS de. "Recuperacao e reciclagem dos acidos nitrico e sulfurico e do molibdenio dos residuos liquidos das industrias de lampadas." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9554.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Bertozzo, Fernanda [UNESP]. "Co-digestão anaeróbia de dejetos de bovinos e dois tipos de glicerina bruta." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/101810.
Повний текст джерелаA glicerina bruta é um resíduo da produção de biodiesel de baixo valor agregado, no entanto, possui alto teor de carbono e potencial para produzir bons resultados se co-digerida de maneira anaeróbia com um material rico em nitrogênio como os dejetos de animais. Sendo assim, objetivou-se com este trabalho avaliar a co-digestão de dejetos de bovinos leiteiros e dois tipos de glicerina bruta: bruta e bruta loira, em biodigestores anaeróbios operados em sistema semi-contínuo, sob delineamento experimental inteiramente casualizado com cinco repetições por tratamento, sendo DBL – dejetos de bovinos leiteiros + água; DBL+GB – dejetos de bovinos leiteiros + glicerina bruta + água; DBL+GL – dejetos de bovinos leiteiros + glicerina bruta loira + água. As cargas diárias foram iniciadas tanto no DBL+GB como no DBL+GL com 1,25% de glicerina bruta passando em seguida para 2,5; 5; 7,5, 10, 15 e 20%; os aumentos nas porcentagens foram graduais e realizados a cada 30 dias, sendo este o TRH estabelecido. Os parâmetros avaliados foram: pH, acidez volátil (AV), alcalinidade total (AT), relação AV/AT, temperatura, reduções dos teores de sólidos totais (ST) e de sólidos voláteis (SV), produção de biogás/dia, teor de metano (CH4), potencial de produção de biogás por quilograma: de substrato (m3 kg-1 subst.), de sólidos totais adicionados (m3 kg-1ST adic.), de sólidos voláteis adicionados (m3 kg-1 SV adic.) e de dejetos de bovinos leiteiros (m3 kg-1 dej.), teores de...
Crude glycerin is a waste from biodiesel production with a low added value, however, it has a high carbon content and potential to produce good results if it is co-digested with a rich nitrogen material as animal manures. This way, the aim of this study was the co-digestion evaluation of dairy cattle manures and two types of crude glycerin: crude and blonde crude, in anaerobic digesters operated in semi-continuous system, under experimental design entirely randomized with 5 repetitions for each treatment, DBL – dairy cattle manures + water; DBL+GB - dairy cattle manures + crude glycerin + water; DBL+GL - dairy cattle manures + blonde crude glycerin + water. Daily loads were initiated both in DBL+GB and DBL+GL with 1,25% of crude glycerin and then rising to 2,5; 5; 7,5, 10, 15 and 20%; increases in percentages were made gradually and every 30 days. The parameters assessed were: pH, volatile fatty acids (VFA), total alkalinity (TA), VFA/TA ratio, temperature, removal of total solids (TS) and volatile solids (VS), biogas production, methane rate (CH4), potential of biogas production per kilogram: of substrate (m3 kg-1 subst.), total solids added (m3 kg-1 TS add.), volatile solids added (m3 kg-1 VS add.) and dairy cattle manures (m3 kg-1 dej.), nitrogen, phosphorus, potassium, carbon and organic matter content and carbon/nitrogen ratio. Least Square Means statistics was used to analyze the data (p<0,05). DBL+GB and DBL+GL treatments provided increments in biogas production in relation to DBL in all crude glycerin percentages tested. CH4 contents have been satisfactory and always above 59%, in all treatments. The ST and VS removals from DBL were less than DBL+GB and DBL+GL, and in these, increases in crude glycerin quantities accompanied. Potentials of biogas production varied according to the analyzed parameter: per kg of substrate and per kg of manures were higher in DBL+GB and in DBL+GL ...
MARTINS, ELAINE A. J. "Reaproveitamento de valores nos efluentes liquidos das unidades-piloto de uranio e torio." reponame:Repositório Institucional do IPEN, 1990. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10253.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Bertozzo, Fernanda 1981. "Co-digestão anaeróbia de dejetos de bovinos e dois tipos de glicerina bruta /." Botucatu, 2013. http://hdl.handle.net/11449/101810.
Повний текст джерелаBanca: Monica Sarolli S. M.Costa
Banca: Adriane de Andrade Silva
Banca: Marco Antonio M. Biaggioni
Banca: Sérgio Campos
Resumo: A glicerina bruta é um resíduo da produção de biodiesel de baixo valor agregado, no entanto, possui alto teor de carbono e potencial para produzir bons resultados se co-digerida de maneira anaeróbia com um material rico em nitrogênio como os dejetos de animais. Sendo assim, objetivou-se com este trabalho avaliar a co-digestão de dejetos de bovinos leiteiros e dois tipos de glicerina bruta: bruta e bruta loira, em biodigestores anaeróbios operados em sistema semi-contínuo, sob delineamento experimental inteiramente casualizado com cinco repetições por tratamento, sendo DBL - dejetos de bovinos leiteiros + água; DBL+GB - dejetos de bovinos leiteiros + glicerina bruta + água; DBL+GL - dejetos de bovinos leiteiros + glicerina bruta loira + água. As cargas diárias foram iniciadas tanto no DBL+GB como no DBL+GL com 1,25% de glicerina bruta passando em seguida para 2,5; 5; 7,5, 10, 15 e 20%; os aumentos nas porcentagens foram graduais e realizados a cada 30 dias, sendo este o TRH estabelecido. Os parâmetros avaliados foram: pH, acidez volátil (AV), alcalinidade total (AT), relação AV/AT, temperatura, reduções dos teores de sólidos totais (ST) e de sólidos voláteis (SV), produção de biogás/dia, teor de metano (CH4), potencial de produção de biogás por quilograma: de substrato (m3 kg-1 subst.), de sólidos totais adicionados (m3 kg-1ST adic.), de sólidos voláteis adicionados (m3 kg-1 SV adic.) e de dejetos de bovinos leiteiros (m3 kg-1 dej.), teores de ...
Abstract: Crude glycerin is a waste from biodiesel production with a low added value, however, it has a high carbon content and potential to produce good results if it is co-digested with a rich nitrogen material as animal manures. This way, the aim of this study was the co-digestion evaluation of dairy cattle manures and two types of crude glycerin: crude and blonde crude, in anaerobic digesters operated in semi-continuous system, under experimental design entirely randomized with 5 repetitions for each treatment, DBL - dairy cattle manures + water; DBL+GB - dairy cattle manures + crude glycerin + water; DBL+GL - dairy cattle manures + blonde crude glycerin + water. Daily loads were initiated both in DBL+GB and DBL+GL with 1,25% of crude glycerin and then rising to 2,5; 5; 7,5, 10, 15 and 20%; increases in percentages were made gradually and every 30 days. The parameters assessed were: pH, volatile fatty acids (VFA), total alkalinity (TA), VFA/TA ratio, temperature, removal of total solids (TS) and volatile solids (VS), biogas production, methane rate (CH4), potential of biogas production per kilogram: of substrate (m3 kg-1 subst.), total solids added (m3 kg-1 TS add.), volatile solids added (m3 kg-1 VS add.) and dairy cattle manures (m3 kg-1 dej.), nitrogen, phosphorus, potassium, carbon and organic matter content and carbon/nitrogen ratio. Least Square Means statistics was used to analyze the data (p<0,05). DBL+GB and DBL+GL treatments provided increments in biogas production in relation to DBL in all crude glycerin percentages tested. CH4 contents have been satisfactory and always above 59%, in all treatments. The ST and VS removals from DBL were less than DBL+GB and DBL+GL, and in these, increases in crude glycerin quantities accompanied. Potentials of biogas production varied according to the analyzed parameter: per kg of substrate and per kg of manures were higher in DBL+GB and in DBL+GL ...
Doutor
Wakolbinger, Tina, Fuminori Toyasaki, Thomas Nowak, and Anna Nagurney. "When and for whom would e-waste be a treasure trove? Insights from a network equilibrium model of e-waste flows." Elsevier, 2014. http://dx.doi.org/10.1016/j.ijpe.2014.04.025.
Повний текст джерелаAMORIM, ALDO S. de. "Alternativas de reciclagem de lama de aciaria em concretos e argamassas." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10871.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
McIntire, Ian C. "Moving E-Waste Management into the 21st Century: Protecting Health and Wealth from the Dangers of Electronic Waste." Thesis, Boston College, 2009. http://hdl.handle.net/2345/694.
Повний текст джерелаElectronic waste (e-waste) is being generated faster than ever, threatening the health of people at home and abroad. This paper advocates for improvements in e-waste management that increase environmental protection in innovative ways that also benefit workers. It reviews what is being done around the world in response to the problem and then introduces suggestions on how public and private actors can cooperate to achieve better results, particularly within the United States. The paper begins by examining the successes and failures of extended producer responsibility (EPR) regulations in Europe, the United States, China, and Japan. It then goes on to advocate for a system combining EPR with a refundable deposit to encourage consumer-driven increases in return rates. If people could receive five to ten dollars for recycling their old cell phone or laptop, far fewer would end up in landfills. The paper culminates with an examination of how the idea of “green-collar jobs” can apply to ewaste management. It examines non-college training programs to prepare people to work in this industry and bring them out of poverty. Several reports have discussed the e-waste issue and its policy implications but this will be the first that brings in the labor aspect
Thesis (BA) — Boston College, 2009
Submitted to: Boston College. College of Arts and Sciences
Discipline: College Honors Program
Discipline: International Studies Honors Program
Discipline: International Studies
Isimekhai, Khadijah Ateda. "Environmental risk assessment for an informal e-waste recycling site in Lagos State, Nigeria." Thesis, Middlesex University, 2017. http://eprints.mdx.ac.uk/22233/.
Повний текст джерелаCunningham-Scott, Carey Beth. "Assessing Outcomes of a Recycling Education and Service Program within an Elementary School." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc4888/.
Повний текст джерелаCHEPCANOFF, VERA. "Separacao e recuperacao de cromio e outros elementos de valor em solucoes de trabalho e residuos industriais de galvanoplastia por troca ionica." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10909.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Höltl, Andrea, Roman Brandtweiner, and Roman Müller. "Approach to solving the e-waste problem - case study Ghana." WIT Press, 2017. http://epub.wu.ac.at/5393/1/SDP120607f.pdf.
Повний текст джерелаCuller, Michael. "Modeling product life cycle networks in SysML with a focus on LCD computer monitors." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34742.
Повний текст джерелаLau, Ka Yan Winifred. "E-waste : the material flow and occupational safety and health risk assessments in Hong Kong." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1457.
Повний текст джерелаOlivier, Samantha. "Aplicação de resíduos agroindustriais e urbanos em áreas de reflorestamento com Eucalyptus spp." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-06072011-101203/.
Повний текст джерелаThe use of wastes for recovery of degraded soils in order to increase forestry production is a sustainable strategy to solve the problem for the final disposal of various types of industrial and urban residues, considering the technical and economic limitations for appropriate spaces as industrial or sanitary landfills. According to this, the aim of this work was to evaluate the environmental impact generated by the disposal of agro-industrial and urban wastes in areas under cultivation of eucalyptus. The study was conducted at the Vale Verde Plant, located in the city of Baía Formosa/RN, Brazil, whose soil is predominantly sandy and with low fertility, especially in the superficial strata. The experimental design was in randomized blocks with four replications and six treatments: T1 - Absolute control, no fertilizer; T2 - Commercial fertilizers commonly applied by companies in the forestry industry in Northeastern Brazil; T3 - Potential fertilization, consisting in double commercial fertilization; T4 - Commercial fertilizer plus 1 t ha-1 of waste gypsum obtained from construction and demolition; T5 - Commercial fertilizers plus 20 t ha-1 of composted agro industrial waste and T6 - Commercial fertilizers plus 20 t. ha-1 of sewage sludge. The effect of these residues were evaluated according to the chemical analysis of soils and plant compartments (leaves, barks and woods) as well as litter, plus annual forest inventories. The application of wastes had a positive influence over plant nutrition, providing wood production statistically equal to that obtained in potential fertilization treatment. T4 caused an average annual increment of 30% higher than T1 and equal to T3. The application of 20 t ha-1 of sewage sludge did not cause measurable negative environmental impacts on the environment, representing an excellent opportunity for the disposal of these wastes, reflected positively on the fertility of the soil, the volume of wood produced and mainly on the environmental impacts since did not involve the disposal of these materials in landfills
Costa, Antonio Marcos Tubiana de. "Codigestão anaeróbia de resíduos bovinos e suínos: caracterização química e produção de biofertilizante para uso em cultura de milho." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1116.
Повний текст джерелаWhen discussing environmental contamination, just remember the amount of domestic and urban waste that are generated in towns and cities, which often do not receive any treatment. However, problems of environmental contamination are linked to agriculture, where organic waste with high potential polluters is generated. This way, the project had the objective of studying the anaerobic codigestion process of cattle and pig waste from the swine production systems and dairy farming activity, as an alternative to the treatment of these kinds of matrices, as well as to investigate the efficiency of biofertilizer matrices produced from the waste in cultured maize. For this, samples of manure from cattle and pigs were collected for characterization and subsequent use in the tests with different treatments. Then, the preparation of samples for the tests using the different inocula were made (in natura, inoculum of sanitation and inoculum isolated from bovine manure), in order to evaluate the degradation of waste via anaerobic codigestão. In each test mentioned twenty treatments were made, via 2³ factorial design with six central points, where the input variables: time, fraction of solids and mixing ratio; and the response variables (dependent): pH, ratio AV/AL, moisture, solids, ratio SV/ST, reduction of total solids, COD, reduction of COD, total nitrogen, phosphorus and potassium. It was made after the kinetic study of the process, using the test in natura mix ratio of 75% in swine manure and 25% in cattle manure with solid fraction of 8.9% by the Tukey test. After stabilization of the biomass used, there was the application of biofertilizers in crop maize compared with commercial fertilizer (urea), verifying the growth and development of this culture. In factorial design was completed by Tukey analysis and considering the importance of each variable response that the test in natura presented the best operating conditions, because it had the largest number of variable responses being considered satisfactory ratio as AV / AL, ratio SV / ST and COD reduction. It was observed during the kinetic study that biomass showed stabilization next to twenty days of treatment, indicating the degradation of organic waste in codigestão and biofertilizer production, which is more stable and less polluting to the environment, being used as an option in process fertilization of agricultural crops such as maize. Regarding the use of biofertilizers (40 kg.ha-1), this similarity was noted compared to urea (40 kg.ha-1) for the cultivation of maize and it may be an interesting alternative for allocation of waste, reducing environmental pollution caused by improper handling.
Maciel, Thais Monique de Souza [UNESP]. "Atributos da solução e do solo de cerrado após aplicação de resíduo da extração de celulose." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/111097.
Повний текст джерелаA grande expansão das indústrias e do mercado consumidor tem provocado, nas últimas décadas, a geração de elevadas quantidades de resíduos. Com a produção de papel e celulose, as indústrias do setor têm gerado diariamente grandes quantidades de resíduos sólidos e efluentes, constituindo-se em uma grande preocupação ambiental e econômica. No intuito de retornar com estes subprodutos de forma sustentável à natureza, o objetivo do estudo foi avaliar, em casa de vegetação usando colunas de solo e ciclos de umedecimento, o efeito da aplicação de resíduos da extração de celulose nos atributos físicos do solo e químicos da solução e do solo, especialmente aqueles relacionados à dispersão de argila de dois Latossolos Vermelhos. O experimento foi implantado na Faculdade de Engenharia, Campus de Ilha Solteira (UNESP), localizada no município de Ilha Solteira, SP. O delineamento experimental utilizado foi inteiramente casualizado, com 7 tratamentos e 4 repetições, para cada solo. Os tratamentos utilizados foram: T1 – sem adição de calcário e resíduo (controle); T2 – 1,0 t ha-1 de calcário calcítico; T3 – 1,2 t ha-1 de dregs/grits; T4 – 0,8 t ha-1 de lama cal; T5 – 2,4 t ha-1 de cinza; T6 – 1,8 t ha-1 de dregs/grits + lama cal + cinza na proporção 1:3:6; T7 – 1,0 t ha-1 de dregs/grits + lama cal na proporção 1:3. O solo foi coletado e caracterizado química e físicamente antes do período do experimento. Durante o período de incubação foi avaliado o potencial matricial do solo por meio de tensiômetros e a composição química da solução extraída de cada solo estudado por extratores de solução. Após esse período, desmontando as colunas de solo, foram avaliados os atributos físicos: distribuição e estabilidade de agregados, porosidade do solo, densidade do solo, granulometria e também os atributos químicos solo: MO, pH, K, Ca, Mg, Na, H + Al, Al. A ...
The great expansion of industry and the consumer market has led, in recent decades, the generation of large amounts of waste. With the production of cellulose and paper the industries in the sector have generated daily large amounts of solid waste and effluents, thus becoming a major environmental and economic concern. In order to return with these by-products in a sustainable manner to nature, the purpose of the study was to evaluate, under greenhouse conditions, using soil columns and cycles of wetting, the effect of residues from the cellulose extraction in the soil physical and chemical attributes and chemical soil solution, especially those related to the scattering of two Oxisols different texture. The experiment was established at the Faculty of Engineering, Campus Ilha Solteira, University of Sao Paulo State (UNESP), located in the municipality of Ilha Solteira, Sao Paulo State, Brazil. The experimental design was completely randomized, with 7 treatments and 4 replicates for each soil. The treatments were: T1 - without the addition of lime and residue (control), T2 - 1.0 t ha-1 of limestone, T3 - 1.2 t ha-1 dregs/grits, T4 - 0.8 t ha-1 of lime mud; T5 - 2.4 t ha-1 ash, T6 - 1.8 t ha-1 dregs/grits + lime mud + ash in the ratio 1:3: 6, T7 – 1.0 t ha-1 dregs/grits + lime mud in the ratio 1:3. The soil was collected and characterized chemically and physically before the period of the experiment. During the incubation period was assessed soil matric potential by tensiometers and chemical composition of the extracted soil solution. After this period, dismounted the soil columns and the physical attributes were evaluated: distribution and aggregate stability, soil porosity, soil bulk density, particle size and also the soil chemical attributes: OM, pH, K, Ca, Mg, Na, H + Al, Al . The BS, CEC and Base saturation % were calculated. The results were analyzed by performing analysis of variance and ...
Maciel, Thais Monique de Souza. "Atributos da solução e do solo de cerrado após aplicação de resíduo da extração de celulose /." Ilha Solteira, 2014. http://hdl.handle.net/11449/111097.
Повний текст джерелаCo-orientador: Flavia Carvalho Silva Fernandes
Banca: Marcelo Carvalho Minhoto Teixeira Filho
Banca: Zigomar Menezes de Souza
Resumo: A grande expansão das indústrias e do mercado consumidor tem provocado, nas últimas décadas, a geração de elevadas quantidades de resíduos. Com a produção de papel e celulose, as indústrias do setor têm gerado diariamente grandes quantidades de resíduos sólidos e efluentes, constituindo-se em uma grande preocupação ambiental e econômica. No intuito de retornar com estes subprodutos de forma sustentável à natureza, o objetivo do estudo foi avaliar, em casa de vegetação usando colunas de solo e ciclos de umedecimento, o efeito da aplicação de resíduos da extração de celulose nos atributos físicos do solo e químicos da solução e do solo, especialmente aqueles relacionados à dispersão de argila de dois Latossolos Vermelhos. O experimento foi implantado na Faculdade de Engenharia, Campus de Ilha Solteira (UNESP), localizada no município de Ilha Solteira, SP. O delineamento experimental utilizado foi inteiramente casualizado, com 7 tratamentos e 4 repetições, para cada solo. Os tratamentos utilizados foram: T1 - sem adição de calcário e resíduo (controle); T2 - 1,0 t ha-1 de calcário calcítico; T3 - 1,2 t ha-1 de dregs/grits; T4 - 0,8 t ha-1 de lama cal; T5 - 2,4 t ha-1 de cinza; T6 - 1,8 t ha-1 de dregs/grits + lama cal + cinza na proporção 1:3:6; T7 - 1,0 t ha-1 de dregs/grits + lama cal na proporção 1:3. O solo foi coletado e caracterizado química e físicamente antes do período do experimento. Durante o período de incubação foi avaliado o potencial matricial do solo por meio de tensiômetros e a composição química da solução extraída de cada solo estudado por extratores de solução. Após esse período, desmontando as colunas de solo, foram avaliados os atributos físicos: distribuição e estabilidade de agregados, porosidade do solo, densidade do solo, granulometria e também os atributos químicos solo: MO, pH, K, Ca, Mg, Na, H + Al, Al. A ...
Abstract: The great expansion of industry and the consumer market has led, in recent decades, the generation of large amounts of waste. With the production of cellulose and paper the industries in the sector have generated daily large amounts of solid waste and effluents, thus becoming a major environmental and economic concern. In order to return with these by-products in a sustainable manner to nature, the purpose of the study was to evaluate, under greenhouse conditions, using soil columns and cycles of wetting, the effect of residues from the cellulose extraction in the soil physical and chemical attributes and chemical soil solution, especially those related to the scattering of two Oxisols different texture. The experiment was established at the Faculty of Engineering, Campus Ilha Solteira, University of Sao Paulo State (UNESP), located in the municipality of Ilha Solteira, Sao Paulo State, Brazil. The experimental design was completely randomized, with 7 treatments and 4 replicates for each soil. The treatments were: T1 - without the addition of lime and residue (control), T2 - 1.0 t ha-1 of limestone, T3 - 1.2 t ha-1 dregs/grits, T4 - 0.8 t ha-1 of lime mud; T5 - 2.4 t ha-1 ash, T6 - 1.8 t ha-1 dregs/grits + lime mud + ash in the ratio 1:3: 6, T7 - 1.0 t ha-1 dregs/grits + lime mud in the ratio 1:3. The soil was collected and characterized chemically and physically before the period of the experiment. During the incubation period was assessed soil matric potential by tensiometers and chemical composition of the extracted soil solution. After this period, dismounted the soil columns and the physical attributes were evaluated: distribution and aggregate stability, soil porosity, soil bulk density, particle size and also the soil chemical attributes: OM, pH, K, Ca, Mg, Na, H + Al, Al . The BS, CEC and Base saturation % were calculated. The results were analyzed by performing analysis of variance and ...
Mestre
Sadan, Zaynab. "Exploring the potential for local end-processing of e-waste in South Africa." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30974.
Повний текст джерелаLeung, Oi Wah Anna. "Assessment of persistent toxic substances in China and Hong Kong with emphasis on uncontrolled recycling of e-waste." online access from Digital Dissertation Consortium, 2006. http://libweb.cityu.edu.hk/cgi-bin/er/db/ddcdiss.pl?3251835.
Повний текст джерелаYe, Jing. "E-waste management in developing countries through legislation and regulations : a case study of China." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/8032.
Повний текст джерелаFreitas, Dayane Taylor de. "Estudo da separação triboeletrostática de resíduos poliméricos pósconsumo e determinação do limite de contaminação entre PET e PEAD." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/97/97134/tde-04122018-141312/.
Повний текст джерелаThe use of polymers has increased significantly in several industrial sectors, replacing materials such as wood, metals, glass, etc. However, the constant generation of plastic wastes and their disposal generate environmental problems, because most of them are disposed to landfill. Thus, polymer recycling seems to be the most economical and environmentally friend alternative, since it contributes to minimize the consumption of non-renewable resources, as petroleum, also reducing the toxic gases emission generated during the production and decomposition processes. The polymer separation in their different types is one of the most important stages of the recycling process, because due to the diferences in their chemical and physical properties, when they are mixed and processed, low quality products are produced. In Brazil, manual separation is the most used method, but it presents great disadvantages, due to the unheathy conditions that the workers are subjected to and the possibility of human errors during the process. The aim of this work was to study different polymer separation methods, emphasizing the triboelectrostatic separation, besides determining contamination limits between polyterephthalate ethylene (PET) and high density polyethylene (HDPE) in the final recycled product. A device for triboelectrostatic separation of polymers was developed, which was effective in the separation of polyvinyl chloride (PVC) / PET, PVC / acrylonitrile-butadiene-styrene (ABS) and ABS / HDPE blends, reaching percentages of recovery greater than 80% and purity above 90%. Contamination between PET and HDPE was evaluated, based on the morphology and mechanical properties presented by the blends prepared. The limit of 3% of PET contamination in the HDPE was determined, but it was not possible to determine the limit for the contamination of HDPE in PET, because even in small concentrations of the contaminant, the blends presented unstable behavior in the mechanical tests performed, due to the morphological characteristics of the blends produced.
ARAUJO, MARIANA S. de. "Utilização de resíduos de catalisador (ECAT) e cinzas da casca de arroz (CCA) na elaboração de vidros silicatos soda-cal destinados a embalagem." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26381.
Повний текст джерелаMade available in DSpace on 2016-06-22T12:39:08Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Zhang, Manwen. "Air pollution and human health risk assessment in e-waste recycling sites and urban indoor environment in South China." HKBU Institutional Repository, 2017. https://repository.hkbu.edu.hk/etd_oa/463.
Повний текст джерелаKyere, Vincent Nartey [Verfasser]. "Environmental and Health Impacts of Informal E-waste Recycling in Agbogbloshie, Accra, Ghana: Recommendations for Sustainable Management / Vincent Nartey Kyere." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/110302437X/34.
Повний текст джерелаMARTIN, SANDRA R. S. "Recuperação/reciclagem de compostos de borrachas butílica e halobutílica por meio de radiação ionizante." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10549.
Повний текст джерелаMade available in DSpace on 2014-10-09T14:07:26Z (GMT). No. of bitstreams: 0
Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Melo, Fábio Sebastião Duarte de. "Recuperação de metais e reutilização da água do efluente industrial do processamento de zinco por coluna de troca iônica e adsorção." CNEN - Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte, 2006. http://www.bdtd.cdtn.br//tde_busca/arquivo.php?codArquivo=258.
Повний текст джерелаA pesquisa consistiu no estudo de recuperação do zinco e metais associados presentes no efluente do processo industrial, como também na reciclagem da água para o processo produtivo da Votorantin Metais Unidade Juiz de Fora, empregando-se o processo de adsorção por troca iônica, visando obter condições operacionais que viabilizasse a implantação do sistema. Os principais constituintes do efluente estudado são: Zn, Ca, Mg, Mn, Cd, Cu e Pb. A investigação realizada, se aplicada ao processo industrial, possibilita a reciclagem de alguns destes metais, tais como: Zn, Cd, Cu e Pb. Os demais metais podem ser removidos do sistema viabilizando a reutilização da água, atualmente descartada. Para a recuperação dos metais foi utilizado o processo de adsorção com trocadores iônicos, tendo sido empregadas resinas de troca iônica, zeólitas e outros adsorventes naturais, que geralmente são empregados em soluções que contenham baixas concentrações de metais, tal como a amostra investigada. A amostra foi coletada na bacia de equalização, local este que recebe todo efluente da planta industrial para tratamento final e posterior descarte no corpo receptor.
The research consisted of the study of recovery of zinc and metals associates present in the effluent of the industrial process of the Votorantin Metais, Juiz de Fora Unit. The main constituent of the shedied effluent are: Zn, Ca, Mg, Mn, Cd, Cu and Pb. The experimental work, if applied to the industrial process, will enable the recovery of some of these metals, such as: Zn, Cd, Cu and Pb. The metals can be removed from the system enabling the recicling of the water curretly discarded. This research was developed considering the conditions that enabled tha set up of the system. For metals recovery it was used the adsorption process with ionic exchangers, such as exchange zeolites and other natural adsorbents. These materials are generally used in solutions that contain low metal concentrations, as the investigated sample. This sample was collected in the Bacia de Equalização where all effluentes generated in the industrial plant are sent and the final treatment befor discarding is made.
Silva, Ricardo Vandré Trótski Oliveira. "Resíduos de coco, acerola e caju para produção de carvão ativado." Universidade Católica de Pernambuco, 2015. http://www.unicap.br/tede//tde_busca/arquivo.php?codArquivo=1088.
Повний текст джерелаWith the growth of industrial activities and population, also increases the amount of generated waste which causes environmental problems. In Brazil, a major producer of goods in the agricultural industry, the problems caused by the accumulation and improper disposal of solid waste are large. From this problematic, mechanisms that encourage the reuse and recycling of waste are created. It is seeking to develop new technology of alternative raw materials that are produced activated carbon from coconut waste, barbados cherry and cashew. Primarily, the collection of fiber-to-dry coconut and cake/shells from barbados cherry and cashew for later preparation of this material by impregnation with ZnCl2, chemical activation and conducting an evaluation test coal efficiency. The result, within all samples, was an activated carbon where the application in the water sample collected from the Capibaribe River (near Chico Science tunnel), Recife, presented a decrease in turbidity in 97.3% using treatment with 25% fiber- coconut + 75% cashew.
FONSECA, ANA C. M. "Processos de obtenção e caracterização físico-química de quitinas e quitosanas extraídas dos rejeitos da indústria pesqueira da região de Cananéia – SP." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26794.
Повний текст джерелаMade available in DSpace on 2016-11-11T09:14:09Z (GMT). No. of bitstreams: 0
A quitina é o principal produto obtido do processamento das cascas de crustáceos. Esse biopolímero e o seu derivado, quitosana, têm despertado grande interesse comercial em virtude das possibilidades de aplicações que possuem. O gerenciamento desses resíduos e dos subprodutos gerados nas etapas no processo de obtenção pode ser considerado um modelo de biorrefinaria. A implementação de plantas para extração de quitina e quitosana é um desafio, uma vez que a demanda produtiva deve ser atendida sem causar danos ao meio ambiente. Uma grande variedade de quitosanas com diferentes propriedades físicoquímicas podem ser obtidas variando-se as condições de reação. Essas propriedades dependem da origem da matéria-prima, do seu grau médio de desacetilação, distribuição média dos grupos acetil ao longo da cadeia principal e da sua massa molecular média. Os fornecedores de quitosana comercial geralmente não mencionam a procedência da matéria-prima e pouca ou nenhuma informação é fornecida acerca do seu processamento. Sendo assim, as características e a reatividade do produto final podem variar gerando resultados não reprodutíveis. No presente estudo, foi utilizada a biomassa oriunda de rejeitos da indústria pesqueira de camarão da região de Cananéia SP. As amostras de - quitina foram obtidas por dois procedimentos diferentes: no primeiro, P1, as cascas de camarão após passar pelo pré-tratamento (lavagem, secagem e moagem) foram desproteinizadas para retirada das proteínas em hidróxido de sódio (NaOH) diluído nas concentrações 2%, 5% e 10% e desmineralizadas em ácido clorídrico (HCl) a 20% (v/v) para retirada dos carbonatos; no segundo procedimento, P2, essas etapas foram invertidas. A biomassa resultante foi desacetilada com hidróxido de sódio concentrado a 30%, 40% e 50% em tempos que variaram de 2 a 6 horas. As principais propriedades físico-químicas das amostras de quitosanas obtidas foram determinadas utilizando a espectroscopia na região do infravermelho com transformada de Fourier (FT-IR) para a determinação do grau médio de acetilação, GA, e a técnica de titulação ácido-base mensurada por condutimetria foi utilizada para comparar os resultados; a viscosimetria capilar para a determinação da massa molar média viscosimétrica, Mv , e a difração de raios X (DRX) para avaliar o grau médio de cristalinidade, X. Além disso, foram empregadas as técnicas de microscopia eletrônica de varredura (MEV) para análises morfológicas dos materiais obtidos e a espectrometria de fluorescência de raios X por dispersão de comprimento de onda (WDXRF) para análise química das quitosanas. O GA e o X das amostras diminuíram à medida em que o tratamento se tornou mais vigoroso, enquanto a Mv aumentou. O procedimento 2 foi o mais viável por eliminar a etapa de despigmentação, pois originou amostras com tonalidade mais clara e fáceis de pulverizar.
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Christian, Gideon. "Sustainable Legal Framework for Transboundary Movement of Electronic Waste." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30431.
Повний текст джерелаOcampo, Edwin José Figueroa. "Produção de pó de cobre eletrolítico a partir de resíduos de placas de circuito impresso." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/170949.
Повний текст джерелаThe printed circuit boards are found in almost all electrical electronic equipments (EEE) and are essential components of computers. The PCBs consist of polymers, ceramics and metals, and among the metals, there is a significant fraction of valuable metals such as gold, silver and copper. The heterogeneous mixture of these materials makes their recycling difficult. Therefore, many kinds of technologies have been developed and improved for the recycling of these electronic components. This scientific research proposes an alternative route for recovery of copper contained in the analyzed PCB. Initially, a mechanical process consisting of fragmentation and grinding, size classification and magnetic separation was performed, aiming the liberation of metals from the boards, especially the concentration of copper. This route does not include the classical electrostatic separation for metal recovery. Two acid leaching procedures were performed with sulfuric acid: the first one for removing the unwanted elements (Fe, Ni, Zn, AL), followed by a second acid leaching, in an oxidizing medium, to obtain a concentrated copper ion electrolyte. The electrolytic solution produced in the second leaching was submitted to electrodeposition obtaining copper powder, which is used in powder metallurgy processes as raw material for the industry of sintered mechanical and scientific components. The results indicate that the recovery of metals contained in PCB originated from WEEE is possible. The obtained copper powder adequately meets the technical requirements for its applicability in powder metallurgy processes, such as: dendritic structure, appropriate chemical composition and particle size distribution, reaching the general objective of this research.
Subramanian, Logakanthi. "Management of electronic waste by bulk consumers : the case of India's IT service sector." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/management-of-electronic-waste-by-bulk-consumers-the-case-of-indias-it-service-sector(e6df8705-d9cc-456d-b078-c35f8cb3aaaf).html.
Повний текст джерелаMolina, Carlos Ernesto Chávez. "Estudo do comportamento mecânico de misturas de resíduo da fabricação de papel e solo para utilização na construção rodoviária." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18137/tde-10072017-161404/.
Повний текст джерелаThe solid waste studied in the present research results from the association of lime mud and dregs, these materials are generated during the paper manufacturing. Traditionally, this waste is disposed of either surface impoundment or landfills. However, there is limited appropriate land availability for these disposal practices, and its maintenance is costly, due to the present contamination risks for the surrounding environment and fauna. Therefore, this kind of solution is no longer seen as long term viable. This work has the main objective of studying, based on laboratory tests, the mechanical behavior of soils and the wastes in focus mixtures, seeking their utilization in road construction. Specimens with and without the addition of waste were compacted at the normal proctor energy, varying the soil type, the lime rate and curing time, afterwards they were submitted to tests of unconfined compressive strength, indirect tensile strength and California bearing ratio. Complementary, tests of ray-X diffraction and spectrum electronic microscopy were executed to respectively determine the chemical composition and microstructure of the waste. The results showed that the addition of paper mill wastes to soils does not improve the mechanical properties of the compacted mixtures, being necessary the use of a stabilizer, such as lime, to improve its poor characteristics. However for the studied soils; the lime stabilized soils and the waste mixtures presented bettermechanical behavior than the lime stabilized soils offering a feasible solution for the use of this waste in road construction.
Silva, Beloni Gomes da. "Gestão dos resíduos eletrônicos da UFSM: viabilidade e implementação de uma política de reciclagem." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/4623.
Повний текст джерелаMuito tempo se passou até que o homem começasse a perceber que todo desenvolvimento traz consigo, além do conforto, praticidade e comodidade impactos significativos à natureza. Nesse cenário, o desenvolvimento da eletrônica, mesmo considerado um mecanismo de desenvolvimento limpo , contribui com elementos altamente nocivos ao meio ambiente. O presente estudo objetiva traçar um panorama da relação das atividades administrativas com relação a compra de equipamentos de informática, descarte e gestão dos resíduos eletrônicos de informática da Universidade Federal de Santa Maria. Com a expansividade das atividades acadêmicas na instituição surge a necessidade aquisição de novos equipamentos eletrônicos e as constantes trocas de modelos antigos, motivados pela instalação de novos laboratórios, e da exigência de computadores com maior capacidade de processamento para atender a evolução de softwares, geram inevitavelmente a geração de um grande montante de resíduos eletrônicos. O descarte destes resíduos provoca a necessidade se disponibilizar formas de armazenamento bem como uma destinação final correta destes resíduos onde a instituição precisa apresentar à comunidade acadêmica um forma correta de gestão destes resíduos que possa servir de modelo para toda sociedade visto que lixo eletrônico é um problema de todos nós.
AMORIM, ALDO S. de. "Análise crítica da viabilidade econômica e ambiental do processo de reciclagem de resíduos de construção civil no âmbito de um município." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26806.
Повний текст джерелаMade available in DSpace on 2016-11-11T11:09:07Z (GMT). No. of bitstreams: 0
Este trabalho apresenta uma análise da viabilidade econômica e ambiental do processo de reciclagem de Resíduos de Construção Civil em um município. Utilizou-se como base o Município de Guarulhos onde foi efetuado um levantamento das quantidades de resíduos de construção civil produzidos, seu gerenciamento e o processo de reciclagem e reutilização dos agregados reciclados produzidos. O Município de Guarulhos implantou o primeiro Ponto de Entrega Voluntária (PEV) de resíduos em 2003 e, de forma ininterrupta, vem aumentando a disponibilidade desses pontos a população, possuindo 17 pontos em 2014. Inicialmente planejados para receber apenas resíduos provenientes de construção civil, tornaram-se pontos onde a população destina inúmeros resíduos sólidos não orgânicos. A empresa de pública responsável por obras na cidade, PROGUARU, possuiu uma Usina de Reciclagem de Resíduos de Construção Civil (URE) que produz agregados reciclados para uso em manutenções e pavimentação, além de fornecer material para utilização na Fábrica de Pré-Moldados da Prefeitura, fechando um ciclo de captação, processamento e reutilização dos Resíduos de Construção Civil no município. Foram desenvolvidos dois modelos que incluem no cálculo econômico do processo de reciclagem de Resíduos de Construção Civil de um município, a economia obtida com a diminuição do descarte irregular e com a substituição de agregados naturais pelos agregados reciclados produzidos pela PROGUARU. No período de 2003 a 2014, os Pontos de Entrega Voluntária receberam 296.210,11 . 10³ kg de resíduos totais, e enviou 214.910, 57 . 10³ kg de Resíduos de Construção Civil para a URE. O lucro anual do sistema incluindo o custo dos terrenos (PEV e URE) foi de R$ 3,50 por habitante, e desprezando o valor dos terrenos foi de R$ 5,02 por habitante. O trabalho de pesquisa comprova a viabilidade econômica da reciclagem, além dos ganhos ambientais pela diminuição dos descartes irregulares e economia de recursos naturais.
Tese (Doutorado em Tecnologia Nuclear)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP