地下渗滤系统处理生活污水的技术难点及对策  

Technical difficulties and solutions of subsurface infiltration system in domestic wastewater treatment

作　　者：李英华[1,2] 孙铁珩[1,2,3] 李海波[1] 胡筱敏[2] 

机构地区：[1]沈阳大学污染环境的生态修复与资源化技术教育部重点实验室,沈阳110044 [2]东北大学资源与土木工程学院,沈阳110004 [3]中国科学院沈阳应用生态研究所,沈阳110016

出　　处：《生态学杂志》2009年第7期1415-1418,共4页Chinese Journal of Ecology

基　　金：辽宁省自然科学基金项目(20082195);沈阳市科技计划资助项目(1081100-1-00)

摘　　要：以土地处理系统为代表的污水自然处理技术,遵循循环再生、和谐共存、整体优化、区域分异等原理,不仅对各种污染物有极高的去除效率,并可实现污水的处理与利用相结合。本文介绍了地下渗滤系统的工艺原理、技术特征,并阐述了国内外研究的最新进展,讨论了应用中的主要技术难点和解决途径,包括选配基质、缓解土壤堵塞以及提高系统氮的去除效果和水力负荷的方法等,指出地下渗滤系统应在强化预处理的基础上,采用合理调配土壤组成以提高水力负荷的运行方式。Natural wastewater treatment system exampled by land treatment system is based on the principles of recycling and reusing wastewater, harmonious with the environment, unified optimization, and differencing with the positions. Land wastewater treatment technology cannot only remove most of the pollutants in domestic wastewater, but also made it with high reusing rates. In order to promote the technical innovation of this kind of wastewater eco-treatment system and its wide application in China, and to provide a scientific and technical basis for the system implementation, a discussion was made on the subsurface wastewater infiltration system. Its process, characteristics, and principles were introduced, and the technical challenges in its application and corresponding solutions, including substrate choosing methods and the ways to relieve soil collision and enhance nitrogen removal were presented. The authors suggested that strengthened pretreatment should be emphasized, and the ways for raising hydraulic load should be adopted.

关 键 词：地下渗滤 生活污水 技术难点 对策 

分 类 号：X703[环境科学与工程—环境工程]