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1.
文章分析了我国城市生活垃圾资源的现状和危害,探讨了生活垃圾的利用途径和开发价值,并就合理开发利用我国的生活垃圾提出了几点建议及措施。  相似文献   

2.
宋宝增 《四川环境》1998,17(1):64-67
本文以可持续发展和保护生态环境的观点,针对中国城市垃圾年产1.2亿吨及历年积存60亿吨的处理问题,简要介绍和比较了四种基本的垃圾处理方法,着重推荐无害化综合处理方法,并从技术、经济、政府政策和企业运营等方面分析了无害化综合处理方法在全国普遍推广的可行性,预测了普遍推广后的环境效益、社会效益和经济效益。  相似文献   

3.
城市生活垃圾资源化利用途径的探讨   总被引:1,自引:0,他引:1  
主要介绍了我国生活垃圾处理现状及存在的问题.根据城市垃圾处理技术发展趋势,探讨了我国城市垃圾资源化的发展方向,并提出了加快垃圾资源化的对策与措施.  相似文献   

4.
城市生活垃圾无害化和资源化的应对策略   总被引:1,自引:0,他引:1  
本文在市场化的背景下阐述了城市生活垃圾在市场化进程中的无害化、资源化的问题及应对策略。城市生活垃圾处理引入市场化机制是为了提高效率和引进资本,但政府作为垃圾处理责任主体的地位没有改变,也不应该发生变化。垃圾的无害化和资源化是辨证统一的关系。  相似文献   

5.
城市生活垃圾资源化存在的问题与对策探讨   总被引:1,自引:0,他引:1  
对我国城市生活垃圾的构成及资源利用现状进行了介绍,分析了生活垃圾资源化存在的问题,探讨了资源化利用途径以及提高资源化利用水平的措施,提出了垃圾治理可持续发展的思路,为生活垃圾走资源化之路指明方向。  相似文献   

6.
对我国城市生活垃圾的构成及资源利用现状进行了介绍,分析了生活垃圾资源化存在的问题,探讨了资源化利用途径以及提高资源化利用水平的措施,提出了垃圾治理可持续发展的思路,为生活垃圾走资源化之路指明方向。  相似文献   

7.
长春市城市生活垃圾资源化处理对策   总被引:3,自引:0,他引:3  
通过介绍国内外的垃圾资源化方法和技术模式,分析长春市垃圾处理现状,对长春市垃圾资源化处理提出几点建议,以加快长春市可持续发展战略的实施步伐。  相似文献   

8.
城市生活垃圾的资源化处理及对策分析   总被引:2,自引:0,他引:2  
简要介绍了城市生活垃圾处理的现状,阐述了该领域存在的问题,对目前城市生活垃圾处理技术的优缺点进行对比分析。针对我国城市生活垃圾混合收集、无机物含量高的特点,提出了一种以生活垃圾能源化利用为目标,兼顾资源循环回收利用的城市生活垃圾资源化综合处理利用的解决方案。  相似文献   

9.
我国城市垃圾资源化初探   总被引:6,自引:0,他引:6  
随着社会经济的发展以及城市化进程的加快,我国城市垃圾日益增多而自然资源日益匮乏。若能将垃圾资源化,这不仅可以减少垃圾对环境的污染,又可以节约资源,创造资源。作者就我国城市有资源化的现状,力以及对策等进行了探讨。  相似文献   

10.
《中国环保产业》1999,(6):46-48
由四川省广汉市三丰科技实业有限公司开发、四川省环境保护局推荐的生活垃圾无害化资源化处理工艺与利用技术适用于我国和发展中国家大、中、小城市各种混装垃圾的资源化处理、利用。主要技术内容为:  采用生态工程原理,把垃圾进行机械化处理,制成多元素有机复合肥,用于...  相似文献   

11.
刘光秀 《四川环境》2001,20(4):40-42,46
本文通过对城市生活垃圾的产生、处理现状的分析,看到垃圾处理的严峻性和刻不容缓的态势,提出我国城市垃圾处理必须走市场化道路的对策。领先全民参与、人人动手解决垃圾污染问题,促进城市垃圾蛄量化、无害化、资源化进程。尽快稳步提高我国城市垃圾处理水平,实现我国城市处理的市场化、产业化。  相似文献   

12.
论述了垃圾预处理系统的一些关键设备和技术要点,分析了垃圾焚烧炉预处理系统的流程设计和不同的设备组合方式,并介绍了一种用于循环流化床焚烧炉的预处理系统流程和试验结果。  相似文献   

13.
垃圾焚烧烟气净化处理技术   总被引:5,自引:0,他引:5  
张记市  谢刚  王华 《环境技术》2002,20(6):26-30
为了避免城市生活垃圾焚烧对环境产生二次污染,必须对垃圾焚烧烟气进行净化处理才能排放。而二恶英的存在又对烟气净化技术提出更高的要求。因此采用先进的烟气净化处理技术和和高效的运行管理方式是防止二次污染的关键。  相似文献   

14.
城市生活垃圾源减量化技术与对策   总被引:2,自引:0,他引:2  
陈丹  钱光人 《四川环境》2005,24(1):95-97
解决垃圾问题最好的方式是避免其产生,这样就无需收集、运输或处置。此外,源减量化在能源利用、温室气体排放和其他环境影响方面,要远优于其他诸如焚烧和填埋等处理方式。生活垃圾源减量化具有环境和经济的双重效益。本文阐述了生活垃圾源减量化的概念和特征,并通过借鉴美国在生活垃圾源减量化问题上的成功经验和成熟技术,探讨了适合上海的生活垃圾源减量化对策。  相似文献   

15.
生物反应器填埋场渗滤液及其处理对策   总被引:4,自引:1,他引:4  
根据垃圾的降解和稳定机理分析了生物反应器填埋场渗滤液的动态变化规律,并对其处理对策进行了探讨。生物反应器填埋场前期产生的渗滤液可全部回灌,后期再根据实际情况排放处理部分过量的渗滤液。在对渗滤液水量和水质全面直观认识后,再对生物反应器填埋场渗滤液处理工艺进行针对性的选择和设计,并宜采用物化法处理方式。  相似文献   

16.
The proximity principle—disposing of waste close to its origin—has been a central value in municipal solid waste (MSW) management in Japan for the last 30 years and its widespread adoption has helped resolve numerous “Not in My Backyard” issues related to MSW management. However, MSW management costs have soared, in large part because of aggressive recycling efforts and because most MSW is incinerated in a country that has scarce landfill capacity. In addition, smaller, less sophisticated incinerators have been closed because of high dioxin emissions. Rising costs combined with the closure of smaller incinerators have shifted MSW management policy toward regionalization, which is the sharing of waste management facilities across municipalities. Despite the increased use of regionalized MSW facilities, the proximity principle remains the central value in Japanese MSW management. Municipal solid waste management has become increasingly regionalized in the United States, too, but different driving forces are at work in these two countries. The transition to regionalized MSW management in Japan results from strong governmental control at all levels, with the central government providing funds and policy direction and prefectures and municipalities being the primary implementing authorities. By contrast, market forces are a much stronger force with US MSW management, where local governments—with state government oversight—have primary responsibility for MSW management. We describe recent changes in Japan’s MSW programs. We examine the connections between MSW facility regionalization, on the one hand, and, on the other hand, the proximity principle, coordination among local governments, central government control, and financing mechanisms.  相似文献   

17.
针对城市垃圾含水率高、成分复杂的特点,采用静置沥水5天后再筛分处理的措施,垃圾的含水率可去除10%~15%,增强了机械分选效果。对筛下物进行生物堆肥处理,两次发酵约35天后,产品基本达到无害化、稳定化的要求。同时,对筛上物进行了卫生填埋,渗滤液经过沉淀和UASB工艺预处理后与邻近污水厂污水合并处理,臭气经生物滤池后也得到有效控制。  相似文献   

18.
    
Due to the lack of appropriate policies in the last decades, 60% of Brazilian cities still dump their waste in non-regulated landfills (the remaining ones dump their trash in regulated landfills), which represent a serious environmental and social problem. The key objective of this study is to compare, from a techno-economic and environmental point of view, different alternatives to the energy recovery from the Municipal Solid Waste (MSW) generated in Brazilian cities. The environmental analysis was carried out using current data collected in Betim, a 450,000 inhabitants city that currently produces 200 tonnes of MSW/day. Four scenarios were designed, whose environmental behaviour were studied applying the Life Cycle Assessment (LCA) methodology, in accordance with the ISO 14040 and ISO 14044 standards. The results show the landfill systems as the worst waste management option and that a significant environmental savings is achieved when a wasted energy recovery is done. The best option, which presented the best performance based on considered indicators, is the direct combustion of waste as fuel for electricity generation. The study also includes a techno-economical evaluation of the options, using a developed computer simulation tool. The economic indicators of an MSW energy recovery project were calculated. The selected methodology allows to calculate the energy content of the MSW and the CH4 generated by the landfill, the costs and incomes associated with the energy recovery, the sales of electricity and carbon credits from the Clean Development Mechanism (CDM). The studies were based on urban centres of 100,000, 500,000 and 1,000,000 inhabitants, using the MSW characteristics of the metropolitan region of Belo Horizonte. Two alternatives to recovering waste energy were analyzed: a landfill that used landfill biogas to generate electricity through generator modules and a Waste-to-Energy (WtE) facility also with electricity generation. The results show that power generation projects using landfill biogas in Brazil strongly depend on the existence of a market for emissions reduction credits. The WtE plant projects, due to its high installation, Operation and Maintenance (O&M) costs, are highly dependent on MSW treatment fees. And they still rely on an increase of three times the city taxes to become attractive.  相似文献   

19.
20.
城市生活垃圾卫生填埋场渗滤液水量水质的确定   总被引:11,自引:2,他引:11  
冯明谦  李强 《四川环境》2001,20(2):52-54
本文论述了3种渗滤液水量预测法,推荐采用Q=CIA×10-3公式;介绍了确定渗滤液水质的方法;根据国内外渗滤液水质实测值,分析了水质特点,认为我国渗滤液浓渡呈增加趋势。  相似文献   

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