摘要
对垃圾填埋场渗滤液的综合状况进行了阐述 ,包括渗滤液的特性、危害、控制及其处理技术等。重点介绍渗滤液的危害及目前国内外处理技术的现状 。
This paper has given a comprehensive revision of the advances in the research of waste landfill leachate processing technology commonly used in recent years both at home and abroad. The chief advances in this way may include the study of the characteristic features of the leachate, its harmful impact and the technology on its control and processing, with the stress put on the processing technology. As is shown in the paper, the detrimental effect brought by the pollutants of the landfill leachate on the surrounding environment can be very serious and many fold. So far as we know, about 93 kinds of organic pollutants have been found by using GC MS DS technique, 22 kinds of which result from the environmental priority control pollutants indicated in EPA of China and the USA. The present paper has done a detailed retrospection over the development and advances of landfill leachate processing technology now being used at home and abroad. As is known, the chief processing method in this connection is physico chemical method and biological processing method abroad, including the coagulation and flocculation, adsorption, chemical oxidation, chemical precipitation, up flow anaerobic sludge blanket reactor, membrane screening separation, activated sludge and so on. Physico chemical processing is an important practice in the treatment, which can be adopted as pretreatment of biological process. Based on the authors' experimental comparison and analysis on different kinds of landfill leachate and the results of its practical application, this paper concludes that the pretreatment ex side processing combined with the municipal sewage treatment can be the most economic and efficient method for landfill leachate processing. The paper has also analyzed and summarized some main influential factors involving the constituent parts and the use of the above method. At the same time, the authors also point out some existing problems with leachate control, for example, the collection and classification of the urban household waste and its management concerning the ways of reducing the amount of leachate. It is an important link in preventing detrimental consequences to improve and up date the leachate collection and landfill liner system. In this connection, this present paper has also put forward its own technical solutions to the above mentioned problems.
出处
《安全与环境学报》
CAS
CSCD
2001年第6期1-6,共6页
Journal of Safety and Environment
