Дисертації з теми "Waste management (including agricultural waste)"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-28 дисертацій для дослідження на тему "Waste management (including agricultural waste)".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Stephenson, Gregg T. "The Effects of Agricultural Waste-Based Compost Amendments in Organic Pest Management." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2042.
Повний текст джерелаTorr, Leigh Christine. "Applications of dairy wastewater as a fertilizer to agricultural land : an environmental management perspective." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1641.
Повний текст джерелаAs with any form of intensive agriculture, there are potential environmental impacts associated with the management and housing of livestock on dairy farms. Within the field of dairy farming, particular focus falls to the issue of environmental degradation of water resources, as this form of pollution is currently a major environmental issue around the world. Conventional agricultural practices involving the application of chemical fertilizers to land and crops are causing environmental problems as a result of poor management practices. Dairy wastewater and manures could however be a valuable resource for agricultural producers in the form of an alternate fertilizer for their crops. Waste application as a fertilizer is more environmentally friendly than chemical fertilizers, and could drastically reduce costs for farmers, whilst alleviating storage and management problems often associated with farmyard manures (FYM). The application of organic wastes, notably livestock manures, to land has historically been important for maintaining soil fertility on farms in terms of nutrient status and organic matter levels, as well as helping to reduce soil erosion and improve waterholding capacity. The research sought to investigate the environmental and economical feasibility of using dairy wastewater and manures as an alternative form of fertilizer within agriculture in South Africa.
Kwaw-Mensah, David. "Perceptions of agricultural extension educators regarding livestock waste management education in the North Central Region." [Ames, Iowa : Iowa State University], 2008.
Знайти повний текст джерелаVaz, Sílvia Liliana de Seixas. "Caracterização e diagnóstico da situação relativa à gestão dos resíduos sólidos de origem agrícola no concelho de Vila Franca de Xira." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5350.
Повний текст джерелаThis paper presents a critical analysis of the agricultural solid waste management, taking as case study the county of Vila Franca de Xira. In order to support this analysis we present the literature review and the contacts with public and private entities and organizations with an interest in the present work. It is made a brief introduction to clarify the reasons that explain the genesis of the problem of waste in general and the agricultural waste in particular and the importance of its managing. It is also mentioned the main problems raised by wastes in the environment, its management, and the main solutions adopted for each of these wastes. It is presented the legislation and institutional framework for the wastes of agricultural sources, indicating the documents and entities involved in waste management. For the case study, it was characterized the county in general and justified the decision to limit the analysis to the Lezíria Grande de Vila Franca de Xira. The data related to waste management in the area and a critical analysis of the actual situation, including suggestions for intervention in the management of agricultural waste that may help to improve the current situation.
Hammond, Leslie. "Nutrient Availability and Dynamics of Compost Bedded Pack Dairy Barn Waste." UKnowledge, 2015. http://uknowledge.uky.edu/pss_etds/68.
Повний текст джерелаMbeng, Lawrence O. "The impact of public attitudes and behaviour on the effective valorisation of household organic waste into agricultural compost : case study Limbe and Douala - Cameroon." Thesis, University of Northampton, 2009. http://nectar.northampton.ac.uk/2834/.
Повний текст джерелаKeeney, Daniel Colin. "Transforming Organic Waste Into A Marketable Product: A Conjoint Analysis Of Bulk Compost Preferences And Strategies For Expanding The Compost Market In Vermont." ScholarWorks @ UVM, 2014. http://scholarworks.uvm.edu/graddis/304.
Повний текст джерелаFreeman, Amanda N. D. "The importance of fisheries waste in the diet of Westland Petrels (Procellaria westlandica)." Lincoln University, 1997. http://hdl.handle.net/10182/298.
Повний текст джерелаLin, Long. "Technical, Microbial, and Economic Study on Thermophilic Solid-state Anaerobic Digestion of Lignocellulosic Biomass." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1500505570855855.
Повний текст джерелаАндрейченко, А. В. "Науково-економічне забезпечення розвитку безвідходного виробництва в аграрному секторі". Thesis, Одеса, 2019. http://ir.stu.cn.ua/123456789/17362.
Повний текст джерелаУ дисертації сформульовані концептуальні організаційно-економічні засади формування, впровадження та розвитку безвідходного виробництва в аграрному секторі економіки України, до числа основних з яких слід віднести: урахування зарубіжного досвіду та національних інституціональних особливостей; мінімізацію витрат сировинних і енергетичних ресурсів в аграрному виробництві; обмеження негативного впливу аграрного виробництва на природне середовище; забезпечення циклічності матеріальних та фінансових потоків; раціоналізацію аграрної виробничо-господарської діяльності, збалансування функціонування економічної, соціальної та довкільної сфер життєдіяльності людини в сільській місцевості. Розкрито питання впровадження безвідходного агровиробництва крізь призму проблематики забезпечення сталого розвитку та національної безпеки України. Викладено методико-методологічне обґрунтування впровадження безвідходного агровиробництва. Проаналізовано сучасний стан та структурно-динамічні тенденції розвитку безвідходного агровиробництва із зосередженням уваги на питаннях ресурсозбереження в аграрному секторі, вивченні кон’юнктури ринку продукції безвідходного агровиробництва. Розглянуто специфіку державної регуляторної політики у сфері розвитку безвідходного агровиробництва. Досліджено світовий досвід розвитку безвідходного агровиробництва. Запропоновано заходи посилення конкурентоспроможності суб’єктів господарювання безвідходного агровиробництва. Запропоновано заходи підвищення економіко-соціальної та екологічної результативності безвідходного виробництва в аграрному секторі економіки. Висвітлено особливості розвитку інвестиційно-інноваційного забезпечення безвідходного агровиробництва. Здійснено економіко-математичне моделювання ефективного розвитку безвідходного агровиробництва.
В диссертации сформулированы концептуальные организационно-экономические основы формирования, внедрения и развития безотходного производства в аграрном секторе экономики Украины, к основным из которых следует отнести: учет зарубежного опыта и национальных институциональных особенностей; минимизацию затрат сырьевых и энергетических ресурсов в аграрном производстве; ограничение негативного влияния аграрного производства на окружающую среду; обеспечение цикличности материальных и финансовых потоков; рационализацию аграрной производственно-хозяйственной деятельности, сбалансирование функционирования экономической, социальной и естественной сфер жизнедеятельности человека в сельской местности. Раскрыты вопросы внедрения безотходного агропроизводства сквозь призму проблематики обеспечения устойчивого развития и национальной безопасности Украины. Изложено методико-методологическое обоснование внедрения безотходного агропроизводства. Проанализировано современное состояние и структурно-динамические тенденции развития безотходного агропроизводства с сосредоточением внимания на вопросах ресурсосбережения в аграрном секторе, изучении рынка продукции безотходного агропроизводства. Рассмотрена специфика государственной регуляторной политики в сфере развития безотходного агропроизводства. Исследован мировой опыт развития безотходного агропроизводства. Предложены меры усиления конкурентоспособности субъектов хозяйствования безотходного агропроизводства. Предложены меры повышения экономико-социальной и экологической результативности безотходного производства в аграрном секторе экономики. Освещены особенности развития инвестиционно-инновационного обеспечения безотходного агропроизводства. Представлено экономико-математическое моделирование эффективного развития безотходного агропроизводства.
The thesis contains conceptual organizational and economic principles of formation, introduction and development of non-waste production in the agricultural sector based on national realities and international experience. The study of the issues of the non-waste agricultural production implementation into the practice of management has been carried out through the consideration of such major "blocks": theoretical-conceptual and methodological substantiation; analysis of the current state and trends of agricultural production development; organizational and economic provision of formation and development of non-waste agricultural production; investment and innovation support of non-waste agricultural production; implementation of economical and mathematical modeling of efficient development of non-waste production in the agricultural sector of the economy. The triad of properties of non-waste agricultural production has been proved: firstly, to extract the most valuable and complex components of raw materials, transforming them into useful products; secondly, to ensure the social effectiveness of agricultural production; thirdly: to eliminate or minimize the harm done to the environment as a result of production and economic activity. The applied significance of the application of the non-waste agricultural production principles, that minimizes the cost of raw materials and energy resources, limits the negative impact of production on the environment, ensures the cyclicality of material and financial flows, rationalizes the production and economic activity of the agricultural sector of the economy, balances the functioning of the economic, social and environmental spheres of human life has been ensured. The connection between the efficient functioning of non-waste production in the agricultural sector of the economy and the noosphere teaching has been highlighted, which are aimed at achieving the goal of a common harmonious development of nature and society. The peculiarities of the "mental" attitude to the problem of agricultural waste at the national and global levels have been investigated. The necessity of evaluating the efficiency of non-waste agricultural production on the system of indicators reflecting economic, social, ecological and institutional characteristics of the investigated phenomenon has been argued. The inextricable link between the intensification of agricultural production and resource conservation has been proved, which lies in the increase of the efficiency of the resources utilization and their comprehensive savings. The main types of products of non-waste agricultural production (foodstuffs, feed and feed additives, organic fertilizers, alternative sources of energy, products of technical purpose) have been determined, and economic, social and environmental benefits of such products have been identified: resource conservation, reduction of energy intensity of agroproduction; provision of regional electricity needs; financial benefits from the conversion of waste from the agricultural sector to biogas, biofertilizers, feed additives, etc.; absence of payment for emissions; competitiveness on the domestic and world markets; minimizing environmental damage and protecting the biosphere; assistance in preserving the health of the nation; protection of consumer rights; new jobs creation; development of rural territories. The author has identified the directions, the systematic implementation of which will provide the multifaceted task of strengthening the competitiveness of economic entities of non-waste agricultural production in the domestic and world markets. Economic-mathematical modeling of efficient development of non-waste production in agricultural sector have been presented. The directions of improvement of non-waste agricultural production marketing have been substantiated. The author has proved the significance of the increase of the economic, social and ecological efficiency in the field of non-waste agricultural production for the development of the agricultural sector of Ukraine and for each non-waste production entity in the agricultural sector, as: less resources and labor per unit of production are spent, that entails a decrease in the cost of production of non-waste agricultural production; reduction of the non-waste agricultural production cost affects the creation of economic conditions for the reduction of retail prices in the market of agricultural products; improvement of the non-waste agricultural production efficiency affects the increase of incomes and the level of profitability of economic entities of non-waste agricultural production; minimizes the damage to the environment during the production of products. Economic-mathematical modeling of efficient development of non-waste production in agricultural sector of economy have been presented
Thull, Jean-Paul. "Management of stock effluent spillage from trucks in New Zealand." Lincoln University, 1999. http://hdl.handle.net/10182/778.
Повний текст джерелаBarbosa, George Leandro Monte. "Gerenciamento de residuo solido : Assentamento Sumare II, Sumare-SP." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258153.
Повний текст джерелаDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo
Made available in DSpace on 2018-08-05T12:16:01Z (GMT). No. of bitstreams: 1 Barbosa_GeorgeLeandroMonte_M.pdf: 1812688 bytes, checksum: acc5549dd8817e0291e706503aaf1129 (MD5) Previous issue date: 2005
Resumo: O meio rural não é mais um espaço onde são desenvolvidas atividades exclusivamente agrícolas, já que, tem passado por intensas mudanças, que induzem a pluriatividade, fazendo com que o espaço seja tido como um continuum da zona urbana. Estas mudanças que assemelham o rural ao urbano trazem, a reboque desta reestruturação, mazelas há muito discutidas e pouco solucionadas, das" cidades", como uso e ocupação do solo de maneira desregrada, ausência de saneamento básico, entre outras. A respeito do saneamento, o Gerenciamento Integrado de Resíduo Sólido ainda é uma realidade bem distante, para as comunidades rurais, mesmo para aquelas juntas às zonas urbanas. Desta forma, o objetivo deste trabalho é a elaboração de um Plano de Gerenciamento de Resíduo Sólido para o Assentamento Sumaré II, localizado no município de Sumaré, no Estado de São Paulo, através do diagnóstico da situação do resíduo no local, caracterizando-o, bem como avaliando o programa de coleta de resíduo desenvolvido na comunidade. Para tanto, foi feita uma análise do espaço e dos indivíduos, por meio de dados bibliográficos e questionários de campo, bem como a caracterização do resíduo, para determinar a composição gravimétrica e a taxa de resíduo gerada na comunidade. O trato com o resíduo da comunidade, por parte da prefeitura, é incipiente e inconsistente. Há uma grande distinção de hábitos dos assentados, identificada pelo material que constitui o resíduo de cada família, bem como o modo de descarte do mesmo. De maneira geral, as taxas de resíduo não são geradas com a mesma magnitude, não havendo período do ano com uma produção diferenciada de resíduo. A partir das análises do resíduo é possível afirmar que existe uma "urbanização dos hábitos" dos assentados, realçando a idéia de que esta zona torna-se um continuum das urbanidades
Abstract: The agricultural area is not more a space where exclusively agricultural activities are developed since it has being passed for intense changes that induce the pluriactivities, making that the space is had as a continuum of the urban zone. These changes create, when comparing the agricultural and the urban area, problems that are very argued and little solved about the "cities", such as use and occupation of the ground in disordered way, absence of basic sanitation, among others. Regarding the sanitation, the Integrated Management of Solid Waste still is a very distant reality, for the agricultural communities, even for those near to the urban zones. The objective of this work is to elaborate a Solid Waste Management Plan for the li Assentamento Sumaré II", located in Sumaré city, in São Paulo State, through making a situation inventory of the waste in the place, characterizing it, as well as evaluating the existing program of waste collection developed in the community. In order to get it, analysis of the space and the individuals were made, by bibliographical data and field questionnaires, as well as the characterization of the waste to determine the gravimetrical composition and the taxes of waste generated in the community. The community waste management made by the city hall was incipient and inconsistent. It has a great distinction of habits of these rural people, identified by the waste content of each family, as well as the way of discarding it. In general way, the waste taxes are not generated with the same magnitude, not having a differentiated production of waste by period of the year. From the waste analysis it is possible to affirm that a "urbanization of the customs" of the rural people exists, corroborating with the idea that this zone becomes one continuum of the urbanities
Mestrado
Saneamento e Ambiente
Mestre em Engenharia Civil
Pohanková, Lucie. "Architektura ekofarem v České republice." Doctoral thesis, Vysoké učení technické v Brně. Fakulta architektury, 2012. http://www.nusl.cz/ntk/nusl-233237.
Повний текст джерелаMcKenzie, Joanne T. "Deep anthropogenic topsoils in Scotland : a geoarchaeological and historical investigation into distribution, character and conservation under modern land cover." Thesis, University of Stirling, 2006. http://hdl.handle.net/1893/203.
Повний текст джерелаArruda, Miguel António Taveira Franco Sousa. "Management of agricultural waste on a sample of farms on the island of São Miguel (Açores)." Master's thesis, 2014. http://hdl.handle.net/10400.3/3395.
Повний текст джерелаMilhões de toneladas de resíduos sólidos urbanos são gerados a partir de fontes agrícolas, urbanas e industriais, a cada ano. Esses valores devem aumentar exponencialmente devido ao crescimento da população mundial e ao aumento das áreas urbanizadas. A agricultura representa o principal pilar da economia da região autónoma dos Açores, contribuindo decisivamente para o equilíbrio da balança comercial. O setor agrícola representa atualmente cerca de 50% da economia dos Açores. Neste contexto, a os municípios da Ilha de São Miguel, a maior do arquipélago, pretendia perceber qual o destino final geralmente dado pelos agricultores a resíduos agrícolas específicos: plásticos, embalagens de produtos fitossanitários e veterinários, pneus usados e óleos usados. O instrumento utilizado para a coleta de dados foi um questionário. Para o efeito, foi construída uma tabela com questões de investigação. Este estudo concluiu que o conhecimento legal da maioria dos agricultores acerca dos resíduos era reduzido. Isto pode dever-se à falta de planos de formação e de campanhas de informação eficazes. Ainda assim, os agricultores mostraram preocupação em relação ao impacte ambiental dos resíduos produzidos na sua atividade, embora a maior parte não tenha conhecimento do destino final correto a dar aos resíduos. Embora os agricultores tenham referido que consideram muito importante tratar os resíduos de forma adequada, não tinham a certeza de qual a sua responsabilidade no processo. Concluiu-se que, uma parte considerável dos tipos de resíduos-alvo nesta investigação, não têm o destino final adequado. Para reverter essa situação devem ser implementadas campanhas de formação e sensibilização dirigidas aos agricultores.
ABSTRACT: Millions of tons of solid wastes are generated from agricultural, municipal and industrial sources every year. These amounts are expected to increase exponentially due to the growth of the world’s population and the increase of urbanized areas. Agriculture represents the main pillar of the economy of the Autonomous region of the Azores, contributing decisively to the equilibrium of the trade balance. The agricultural sector currently represents approximately 50% of the Azores economy. In this context, the Municipalities in the largest island, São Miguel, were interested in understanding what is the final destination generally given by farmers to particular types of agricultural waste: plastic, packages of phytosanitary and veterinary products, used tires and used lubricant oils. The instrument used for data collection was a questionnaire. To that end, a table with research questions was built. This study concluded that the legal knowledge of the majority of farmers regarding waste was reduced. This might be related to the lack of effective training and information campaigns. Even so, farmers showed concern about the environmental impact of waste produced in their activity though most are unaware of the correct final destination that should be given to waste. Although farmers stated that they consider important to dispose of the waste properly, they were not sure about their responsibility in the process. It is concluded that a considerable portion of the targeted waste types in this research does not have the adequate final destination. In order to reverse this situation, training and awareness campaigns directed to farmers should be implemented.
Ivany, Peter Andrew 1966. "Site characterization, design, construction, and management of a field experiment to assess groundwater contamination by agricultural waste management practices /." 1993. http://collections.mun.ca/u?/theses,152999.
Повний текст джерелаGalli, Giovanni. "Packaging waste management: Financial support and cost efficiency in Portugal and Italy." Master's thesis, 2018. http://hdl.handle.net/10071/18709.
Повний текст джерелаA presente dissertação discute a gestão de resíduos de embalagens e analisa o tema a partir de duas abordagens diferentes. Do ponto de vista qualitativo, visa comparar os esquemas de conformidade implementados em Portugal e na Itália, e o modelo de cálculo do apoio financeiro às autoridades locais. Além disso, sob ponto de vista quantitativo, pretende-se avaliar as eficiências de custo relativas, nas suas componentes variantes e invariante no tempo, por meio da análise de fronteira estocástica. Em relação ao primeiro objetivo, as principais diferenças entre as transferências financeiras para as autarquias locais são a presença, em Portugal, de um fator de avaliação da qualidade do serviço; enquanto, em Itália, existe a implementação de uma compensação financeira progressiva, baseada em faixas diferentes para a qualidade dos resíduos coletados. No que respeita à segunda parte, uma eficiência determinística de custo persistente e invariável no tempo e uma eficiência residual estocática de custo, e variável no tempo, estimadas a partir de dois panel data, um para cada país. Os resultados obtidos para o sistema português mostram um pequeno impacto de ineficiências variáveis no tempo, e definem o setor com uma eficiência de custo geral que é metade do score apresentado pela empresa mais eficiente no panel. No que concerne a Itália, a análise detetou um impacto maior dos fatores variáveis no tempo na eficiência geral de custo do setor, que, em média, é cerca de um terço da eficiência da melhor entitade.
Zimmerman, Kathleen Agnes. "Negotiation in environmental policy-making: a case study of nitrate regulation in B.C.’s Code of agricultural practice for waste management." Thesis, 1996. http://hdl.handle.net/2429/4260.
Повний текст джерелаJiang, Limin. "Scope economies between indiscriminate and selective urban solid waste collection." Master's thesis, 2017. http://hdl.handle.net/10071/15434.
Повний текст джерелаA reciclagem é uma opção possível na gestão de residuos sólidos urbanos para lidar com a crescente quantidade deste tipo de resíduos que é produzida. Não existem muitos Estudos que tenham analisado este serviço e perguntado se as entidades gestoras de resíduos sólidos urbanos beneficiam do fornecimento simultâneo dos serviços de recolha de lixo e de reciclagem. Esta dissertação procura responder a essa questão no contexto português. Por outras palavras, ela tenta descobrir se existem economias de gama na gestão de resíduos sólidos urbanos no mercado português entre a recolha de resíduos e os serviços de reciclagem. Para responder à questão, este estudo estima uma função de custo para os serviços de recolha de resíduos sólidos urbanos e de reciclagem em Portugal. Usando um painel de 260 entidades gestoras de serviços de gestão de resíduos sólidos urbanos observadas de 2011 a 2015, estima-se uma função de custos multi-produto translog. O índice de economias de gama é de -0.27, significando que existem deseconomias de gama.
Popov, Vladislav H., University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "A catchment approach to managing agricultural pesticides in the environment : a case study with the herbicide atrazine." 2005. http://handle.uws.edu.au:8081/1959.7/22967.
Повний текст джерелаDoctor of Philosophy (PhD)
Deecke, Imme Dorothea. "Reasons for the Underperformance of Clean Development Mechanism Project Activities in the Animal Waste Management Sector." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-B05A-F.
Повний текст джерелаJensen, Anke Katrin. "An analysis of food waste mitigation strategies in grocery retail: practices and lessons from the German market." Master's thesis, 2020. http://hdl.handle.net/10071/21462.
Повний текст джерелаA nível global, um terço dos alimentos produzidos para consumo humano é desperdiçado ou extraviado a cada ano. Particularmente nos países industrializados, isto tem enormes consequências económicas, ambientais e sociais. Enquanto intermediários entre produtores e consumidores, retalhistas alimentares, como os supermercados, desempenham um papel importante para mitigar o desperdício alimentar. Faltam estratégias de mitigação de desperdício alimentar para apoiar os profissionais do setor. O objetivo deste estudo é encontrar as estratégias mais eficazes de mitigação de desperdício alimentar no retalho de mercearia e desenvolver um "Quadro Estratégico para o Desperdício Alimentar" que combine o conhecimento anterior com a experiência de especialistas na Alemanha. No âmbito da análise qualitativa de conteúdos, foram conduzidas oito entrevistas semi-estruturadas com especialistas em desperdício alimentar de supermercados, instituições de caridade alimentar e outras organizações do retalho alemão. Os dados foram codificados e analisados através de uma abordagem dedutiva-indutiva. Os resultados revelam cinco fatores internos e cinco fatores externos que levam ao desperdício alimentar, bem como dezasseis áreas estratégicas com quarenta e uma estratégias possíveis para a mitigação do problema. Os especialistas alemães identificam a redução de preço em lacticínios e outros produtos perecíveis, formações de sensibilização para os funcionários, campanhas sobre data de consumo preferencial para os clientes, atualização de sistemas de controlo de inventário e donativos a instituições de caridade alimentar como as estratégias mais eficazes contra o desperdício alimentar.
Houlbrooke, David John. "A study of the quality of artificial drainage under intensive dairy farming and the improved management of farm dairy effluent using 'deferred irrigation' : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Soil Science, Institute of Natural Resources, Massey University, Palmerston North, New Zealand." 2005. http://hdl.handle.net/10179/1665.
Повний текст джерелаOliveira, André Jorge de. "A externalização nas operações de gestão de resíduos." Master's thesis, 2011. http://hdl.handle.net/10071/4921.
Повний текст джерелаIn an environment in which municipal solid waste have been gaining increasing im-portance in the concerns of the public, its management deserves special attention. Many entities have resorted to outside organizations to manage their waste, looking forward to get more sustainable solutions. Bearing that in mind, this work tried to assess the reasons for the municipalities to outsource the management of municipal solid waste. Through simple statistics, as well as statistical non-parametric tests, this work tried to iden-tify which aspects contribute most to this decision, and what, between those that could jus-tify this kind of decision in the private sector, do not have a significant impact in what con-cerns the management of municipal solid waste. It also sought different response patterns between the intrinsic characteristics of the municipalities. Lastly, it tried to explore eventu-al correlations between the initial variables chosen. The results indicate that this decision is not only affected by reasons related to costs and investment, but also by more operational aspects, such as improvement driven reasons or more organizational driven issues. Also, deserves note that there was not found statistical evidence pointing to significant differences depending on the characteristics of the munici-pality. Finally, limitations to the results obtained were identified and clues were given for future research.
Abreu, Daniela Alexandra Correia de. "A economia circular na visão estratégica de uma empresa portuguesa." Master's thesis, 2018. http://hdl.handle.net/10437/9028.
Повний текст джерелаNos últimos anos a economia circular tem cativado a atenção no mundo, como uma forma de alterar o atual modelo de produção e consumo. Pretende-se fechar o ciclo de produção dentro do sistema económico. A economia circular visa aumentar a eficiência na utilização dos recursos, com um enfoque especial em resíduos urbanos e industriais, para alcançar um melhor equilíbrio e harmonia entre a economia, o ambiente e a sociedade. A Gestão de Resíduos, nas empresas portuguesas, é maioritariamente considerada como uma despesa, vista simplesmente como uma forma de eliminar materiais, gerando uma enorme perda de recursos valiosos e consequentemente graves impactes ambientais. Utilizando como caso de estudo o Grupo Esporão analisou-se de que forma esta empresa colocava em prática os conceitos de economia circular e identificaram-se oportunidades de transformação de alguns resíduos produzidos em matérias-primas. No sentido da inclusão da abordagem da economia circular nos processos produtivos, analisou-se a possibilidade de valorização do bagaço de uva, resultando assim, na possibilidade de extração de compostos antioxidantes e, devido à presença de açúcares redutores, a obtenção de biocombustível ou outros produtos com interesse comercial. Ficou então demonstrado um grande potencial na transformação dos resíduos de bagaço em novos produtos de valor acrescentado.
Over the last years Circular Economy has been captivating the attention of the world has a way to modify the current production and consumer model. It intends to close the cycle of the production inside the economic system. The Circular Economy aims to increase the efficiency in the use of resources with a special focus on urban and industrial residues to achieve a greater balance and harmony between the economy, the environment and society. The Waste Management on the Portuguese enterprises is highly considered as an expense and is seen simply as a way to eliminate materials which generates a huge loss of valuable resources and consequently has grave environmental impacts. Using the case study of the “Grupo Esporão” it has been analyzed in which way this enterprise already placed into practice the concepts of circular economy and it was identified opportunities of the transformation of produced residues into raw materials. In order to include the approach of the circular economy in the production processes the possibility of valorization of grape marc was analyzed resulting in the possibility of the extraction of antioxidant compounds and (due to the presence of reducing sugars) the acquisition of biofuel or other products with commercial interest. It has been demonstrated the enormous potential of the conversion of grape marc in new value-added products.
Varela, João Ramalho. "Redefinição do sistema logístico com vista a reutilização de equipamentos de proteção individual em estabelecimentos que prestam cuidados de saúde." Master's thesis, 2021. http://hdl.handle.net/10071/24220.
Повний текст джерелаThe pandemic caused by the Sarscov-2 virus, and its successive variants spread around the world, caused an increase in the consumption of several products, particularly Personal Protective Equipment (PPE) that assumed a very relevant role at a global level, with this safety measure being used to prevent the spread coming into a greater complexity in various systems. In the Regional Health Association (ARS) of Lisboa and Vale do Tejo for the performance of daily tasks the use of surgical suits is mandatory in certain functions. The high consumption of this type of single-use material has caused a very significant environmental impact, and the supply is sometimes insufficient, and for these reasons other alternatives should be considered. This dissertation focuses on the redefinition of the current logistics system that allows the replacement of disposable surgical suits by recyclable surgical suits, and consequent study of the impacts related to these measures. Based on the literature review, it is possible to conclude that these changes might result in a positive impact for organisations that adopt this type of measures, both in terms of comfort and safety for users, and at an environmental and economic level. To find the optimal solution, key variables were identified, hypotheses were defined and different scenarios were built. The lowest cost was reached by the scenario that results in the sorting being done together with the laundry, the washing being done in the SUCH and the registration being done only after the washing.
Freire, Catarina Suzano. "Comparação entre o modelo nacional de gestão de resíduos de embalagens e o modelo implementado na Alemanha." Master's thesis, 2020. http://hdl.handle.net/10071/21737.
Повний текст джерелаThe waste is a growing concern that affects the society. Its management faces new challenges every day, with countries forced to adopt new measures and strategies in response to face it. In this study, a comparison is made between Portugal and Germany, in terms of their packaging waste management models, to take possible measures to be implemented that allow the improvement of the Portuguese’s system performance. The research begins with a literature review about waste management and their respective systems, and the Principle of Extended Producer Responsibility, this is a fundamental principle of waste management models. It also discusses the issue of the presence of monopolies, and what are the effects of competition between Producer Responsibility Organizations - PRO's. Subsequently, a qualitative investigation is carried out to evaluate the packaging waste management models, depending on their configuration, performance, and competition. The results of this investigation revealed that Portugal needs to take urgent measures to achieve the recycling and recovery targets imposed by the EU until 2025. In this sense, possible strategies are presented that can contribute to the achievement of the goals. Finally, a particular analysis is conducted to the Portuguese system, assessing the consequences of the introduction of competition between PRO's. It will try to quantify the impact on the number of packages declared, on the production of packaging waste produced and the respective recovery, as well as on the financial provision (Ecovalor) and on the level of investment in awareness and Research & Development.
Sobral, João Guilherme Rodrigues. "Plano de atuação comercial da Olimec para o ano de 2022." Master's thesis, 2021. http://hdl.handle.net/10071/24900.
Повний текст джерелаThe present project has as general objective to understand how commercial relations were maintained during the pandemic period and create a commercial plan for Olimec for the year 2022. The years 2020 and 2021 will be remembered in history as the biggest pandemic ever recorded. The disease called COVID-19, forced the shutdown of numerous activities, services and industries to contain the Pandemic. In the meantime, it was also necessary to maintain certain sectors of activities as they were considered essential, such as the maintenance and repair of waste collection vehicles. The relationship between suppliers and customers was highly important to keep during this period of uncertainty, in order to continue operating, within the restrictions and limitations imposed by the pandemic. Following a brief introduction in the first chapter, the second chapter focus on a theoretical and technical framework on the sector through a bibliographical review. The third chapter defines the methodology adopted to carry out a market analysis in which Olimec operates, with the purpose of identifying and analyzing the costumer strategy and commercial approach that Olimec and its competitors established during this period. In the fourth chapter, the company's external and internal analysis is carried out.In the fifth chapter, the results obtained in the market study are analyzed, to give in the sixth chapter a suggestion to implementation of a commercial plan for Olimec for the year 2022. The project will be concluded in the seventh chapter, together with the limitations felt in the project.