地下土壤渗滤法净化生活污水研究进展

SUBSURFACE SOIL INFILTRATION SYSTEMS FOR SEWAGE TREATMENT

摘要:

水资源供需的矛盾和分散型生活污水造成的环境污染均迫切需求开发高效、低耗、简便并能有效脱N除P的原位污水处理技术。地下土壤渗滤法就是该类技术中的一种。本文对地下土壤渗滤系统的工艺类型及其应用进展作了综述,分析了其净化机理及影响工艺性能的因素,讨论了存在的问题,最后对其应用前景作了展望。

Abstract:

The gap between demand and supply of water and the risk of environment pollution associated with inadequate decentralized treatment and disposal of sewage have stimulated attempts to develop in-situ sewage treatment systems, highly efficient in performance with respect to not only SS, organics and bacteria, but also nutrients, low in energy consumption, and easy in operation and maintenance. The subsurface soil infiltration system introduced in this paper may offer a solution to the problem. This paper described the process of the subsurface soil infiltration system, analyzed the mechanisms for sewage purification and the effects of various factors on treatment, discussed a number of problems related to soil clogging and pathogenic and Nitrate-N contamination of the groundwater. The prospect of the technology was expected as a conclusion.