排序方式: 共有65条查询结果,搜索用时 31 毫秒
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城市垃圾污染防治对策探讨 总被引:8,自引:0,他引:8
从城市拉圾产生的机制入手,分析了城市垃圾污染产生的原因,并对目前所采取的主要处理方法人季简要评述,在此基础提出了实现城市垃圾最小量化,推动垃圾资源化产业、提高垃圾无害化处理水平,中化监督管理等几点城市垃圾污染防治的对策。 相似文献
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循环流化床锅炉对环境保护的意义 总被引:1,自引:0,他引:1
五明光 《石油化工环境保护》2000,(2):29-33
重点论述循环流化床锅炉对环境保护的特殊贡献。阐述了我国大气污染现状及防治对策 ;循环流化床锅炉工作原理及主要特点 ;循环流化床锅炉脱硫机理 ;循环流化床锅炉降低 NOX排放的机理等问题。 相似文献
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国外包装废物的处理技术动向 总被引:1,自引:0,他引:1
在欧、美、日等西方国家,废包装材料已成为主要的固体废物之一,其环境污染问题日益受到关注。本文较全面地介绍废包装材料的填埋、焚烧、循环回用、再资源化利用和减少使用包装材料等五种重要技术动击与途径。还重点介绍了美国的PET瓶的资源再利用,以及德国建立严格的包装废物法规和完善的处理系统的概况。 相似文献
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Currently, a large number of companies consider recycling of materials as an opportunity to maximize profits and to reduce the environmental impact generated by these materials after they are disposed. However, there is also a strong constraint on the use of recycled materials mainly due to the lack of technical/scientific information, which would relate their physical properties to their recycling cycle. This information should be used in the initial phase of the product design to serve as reference for the simulation of a project to point out the physical properties obtained from recycling the Projected material (Pm). Thus, it would be possible to foresee some recycling strategy to keep the good characteristics of recycled materials by encouraging their use, regardless of the product to be designed.Therefore, the Recycling Cycle of Materials (RCM) is a tool that provides scientific/technical support in the selection of materials. It uses the information related to the physical properties of the Pm as a parameter for product design after five recycling cycles. For the case study, this tool has been applied to obtain the basic material of ABS/PC blend. Subsequently, this blend was evaluated using DSC, FTIR, traction and impact methods to obtain delimiting data for the definition of the mechanical properties resulting from the application of RCM. 相似文献
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Construction and demolition (C&D) waste is becoming a major contributor to environmental pollution. In Shanghai, China, the quantity of C&D waste is 2.11E+07 t/yr, which accounts for 45% of the total quantity of solid waste. There has been a growing promotion of recycling C&D waste as an effective way to solve this waste problem. However, the evaluation of the efficiency of recycling C&D waste as a potential source of resources is largely based on traditional economic analysis. The economic analysis emphasizes money instead of the harmony between economic benefit and environmental effects. There is a need for a new strategic approach to investigate the efficiency of recycling C&D waste to achieve the integration between economic, social and environmental effects. Emergy theory can be employed to analyze different recycling options for C&D waste. With reference to the Chinese construction industry, this paper demonstrates that the close-loop recycling option is better than the open-loop recycling option for C&D waste in terms of the integration of social, environmental and sustainable aspects. To evaluate different technology solutions for C&D waste recycling, the emergy theory and method is not limited to a cost-benefit balance but can include economic, social, environmental and sustainable effects. 相似文献