Recycling

18/6/04; publicado na web em 12/11/04 THE TECHNOLOGY OF POLYMER RECYCLING. Solid municipal waste contains a large volume of polymers and its final disposal is a serious environmental problem. Consequently, the recycling of the principal polymers present in the solid waste is an alternative. In this review we describe the mechanical and chemical recycling of polymers and the energy recovery from plastic wastes. Polymer recycling involves not only the development of processing…

outras perguntas sobre fatos e curiosidades sobre o tema reciclagem. As guiding questions mais frequentes foram: - What is the process of recycling aluminum? - How is it recycled? - Where is it recycled? - What is it transformed into? - What are the benefits of recycling glass? - What are the negative consequences of recycling batteries? - What plastics can be recycled? Alguns sites foram selecionados para a pesquisa dos alunos. Estes sites sã considerados…

reduction in the use of resources by providing energy efficient systems and water conservation measures ►Reuse - the reuse of resources such as renovating an old building as opposed to tearing them down to build another decreases resource demand ►Recycling – use of recycled materials decreases new resource demand and keeps resources out of landfills Definitions of Sustainability The capacity to equitably meet the vital human needs of the present without compromising the ability of…

Significant effort has been devoted to the reduction, reuse, and recycling of the waste materials. Typically, recycling technologies are divided into primary, secondary, tertiary, and quaternary approaches. Primary approaches involve recycling a product into its original form. Secondary recycling involves processing a used product into a new type of product that has a different level of physical and/or chemical properties. Tertiary recycling involves processes, such as pyrolysis and…

cans, save time in the recycling process, providing greater comfort in order to waive the human effort and guard against possible injury caused by crushing the cans manually. The prototype contributes not only to the recycling process, but also to reduce space required for storage and transport of the material. Especially, tests were conducted on the prototype built to prove the efficiency of the project within the basic proposal is to separate and compress the trash and recycling…

Médio – cursos livres; Educação a Distância – ensino médio. Abstract: Proposed the use of technological tools for the storage and preservation of good practice in recycling and / or reuse of materials technologies. Parallel study showing proposed free course in distance education mode to high school. Encourage recycling by preparing school work interfaces presented by the internet-mediated communication tools, synchronous and asynchronous, in learning environments. The tools used for

em objetos que já não estão funcionando para produzir novos objectos. O aço é utilizado em diversos materiais, desde latas até carros. Sua reciclagem é tão antiga quanto a própria história de sua utilização. Summary Disposal of Solid Waste, Recycling of steel: Environment Today, a company must also concern about the disposal of their products. According to the Law No. 12,305, on the national solid waste companies producing material that can be recycled are responsible for the final…

do Sul. 2) Kang, H.Y,Schoenung,J.M., Electronic waste recycling: A review of U.S. infrastructure and technology options, Resources, Conservation and Recycling, 45 (2005) 368–400. 3) R.Widmer et al., Global perspectives on e-waste, Environmental Impact Assessment Review 25 (2005) 436–458. 4)R. Hischier et al., Does WEEE recycling make sense from an environmental perspective? The environmental impacts of the Swiss take-back and recycling systems for waste electrical and electronic equipment

greater importance, both internationally and nationally. Driven by the growth potential in th is area, the article presents an overview of reverse logistics, its concepts, applications and gain business ga ins in terms of reducing costs through recycling and / or reuse of discarded material. The objective was to characterize the reverse logistics and show th e opportunities for cost reduc tion and increased ecological sensitivity related to the environment. The method used is…

RECYCLING OF SILICON POWDER RETRIEVED FROM DIAMOND WIRE SLICING KERF Marwan Dhamrin, Tadashi Saitoh and Koichi Kamisako Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, Toshinori Mori and Naohisa Iwamoto, Japan Fine Steel, 1-19-1, Ishide, Sanyoonoda, Yamaguchi 756-0063, Japan ABSTRACT: Recycling procedure to retrieve the Silicon from the diamond wire saw sludge is proposed and examined. In order to clarify the impact of common impurities in the