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我国城市生活垃圾处理的现状和对策 总被引:10,自引:0,他引:10
对国内外城市生活垃圾处理技术现状分成传统和新型两大类进行了综述,重点分析了我国城市生活垃圾焚烧发电技术应用现状和存在的问题,并根据可持续发展提出了有关垃圾处理的对策. 相似文献
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分析城市垃圾的产生、特性及常用的垃圾处理方法,介绍垃圾分类的必要性,针对目前我国垃圾处理的缺陷,提出解决我国城市生活垃圾问题的途径。 相似文献
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我国城市垃圾无害化处理问题研究 总被引:2,自引:0,他引:2
社会经济的发展,城市人口的增加,使垃圾问题成为影响城市环境质量的突出问题。文章分析了我国城市垃圾处理现状及存在的问题,提出了一些改进措施;并介绍了国外城市垃圾处理技术发展动向。 相似文献
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城市垃圾处理及资源化利用 总被引:4,自引:0,他引:4
介绍了我国城市垃圾处理及资源化技术的现状与发展,对我国城市垃圾处理及资源化利用带来的经济效益进行了评估,提出了我国城市垃圾处理及资源化利用的几点对策。 相似文献
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德国城市生活垃圾管理现状及启示 总被引:2,自引:0,他引:2
从德国垃圾处理的发展过程、法律法规框架、管理体系、管理措施及实施成果等方面介绍了德国城市生活垃圾的管理现状,从而为解决我国现有的城市垃圾管理问题提供管理思路和方法。 相似文献
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Recent pertinent legislation concerning the handling, recycling and/or disposal of domestic, municipal and industrial refuse in the UK is reviewed. At present it appears that UK energy policy is being influenced significantly by EC environmental legislation. Nevertheless, an overall strategy for dealing with garbage is needed urgently. 相似文献
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本文从垃圾料系统,焚烧炉排型式和燃烧调整等方面,介绍德国EVT公司的垃圾焚烧系统燃烧设备,分析了燃烧设备的特点。 相似文献
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城市垃圾对环境的影响不容忽视,解决垃圾问题已刻不容缓。本文介绍了几种有效地减少城市垃圾对环境污染的做法和一些发达国家处理垃圾的经验。 相似文献
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A new pyrolysis technology and equipment for treatment of municipal household garbage and hospital waste 总被引:1,自引:0,他引:1
This paper analyzes various methods of disposal of municipal solid waste in China, including refuse incineration, garbage power and landfill technology. Based on the conventional pyrolysis principle, a new apparatus has been developed for waste disposal in China. It is especially useful in China as the waste is not sorted. The experiment shows that the concentration of dioxins meets the emission standard of 0.1 ng-TE/N m3 by controlling the residence time and temperature. The expulsive solid weight is as low as 5–7% of the whole refuse. At the same time, a great deal of fire gas was generated in the treatment process. 相似文献
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This paper discusses the problems of using refuse-recovered low Btu gases as fuel of high-temperature regenerative gas turbines. First, it is briefly described that the system using refuse-recovered fuels has a great possibility of being superior both in energy conservation and in solving refuse disposal problems in urban areas. Next, by taking a fermentation gas of the sewage sludge and a pyrolysis gas of the municipal refuse as examples, it is confirmed that a combustion gas with the high flame temperature required for a high efficiency gas turbine can sufficiently be obtained. Finally, through a case study in which no special condition is assumed, the system using these refuse-recovered low Btu gases whose flame temperatures are low is shown to be excellent in the thermal NOx formation characteristics as compared to that using the conventional fuel with a high calorific value. 相似文献
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《Applied Energy》2007,84(6):664-670
In Port Harcourt metropolis, municipal solid-waste (MSW) is generated and collected in large quantities, but some remains as litter in parts of the municipality. Refuse is mostly buried, but some reckless open-burning ensues, so posing environmental hazards. Waste collected from different receptacles and dumpsites in the city was subjected to analysis: on average, it consisted of 66.6% volatile solids, 13.5% fixed solids, 19.1% liquid and 0.8% other components. The average biodegradability fraction is 0.807, with a carbon-to-nitrogen ratio of 27:1. The energy content of the refuse was 7.25 MJ/kg as collected. These results indicate that such refuse is amenable to several disposal options with less adverse impact on the environment. It is also a source of energy. 相似文献
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城市有机垃圾发酵工艺研究 总被引:6,自引:1,他引:6
用先好氧后厌氧发酵,两步发酵和高固体浓度发酵三种方法对城市有机垃圾厌氧产甲烷进行了研究。结果表明:前者具有启动快,产气量高,处理周期短等优点。而直接采用厌氧发酵,由于挥发酸大量积累,启动困难,产气量少。采用两步法发酵可显著提高挥发酸和甲烷产量,还能提高城市固体废物的生物降解率。Ts在20%-50%以下时高固体浓度发酵能正常产甲烷,最终PH和挥发酸均正常。在此范围内随着Ts的增大甲烷产量逐渐减少。T 相似文献