• 关键词：土地处理技术  多级土壤渗滤系统  废水处理

• 基金项目：国家高技术研究发展计划(863)项目(No.2005AA601010-03);国家重大水专项(No.2008ZX07102-003)

• 魏才倢
• 北京大学环境科学与工程学院, 北京 100871

• 吴为中
• 北京大学环境科学与工程学院, 北京 100871

• 杨逢乐
• 云南省环境科学研究院, 昆明 650034

• 贺彬
• 云南省环境科学研究院, 昆明 650034

• 李超
• 北京大学环境科学与工程学院, 北京 100871

• 摘要：多级土壤渗滤系统(multi-soil-layersystem,即MSL)作为一种新型人工土地处理系统,其特殊的模块结构能够很好地克服传统土壤渗滤系统存在的水力负荷低、氮磷去除效率低及易堵塞等缺陷.在日本和泰国的生活污水及河流污染的治理中得到了一定的推广应用.本文以相关研究为基础,从污染物去除效率及机理、设计参数优化两个方面,论述了MSL技术的发展历史及现状,同时对MSL技术的研究前景及发展方向作了简要展望.

• Abstract：The multi-soil-layering(MSL) system is one of the advanced constructed soil-based wastewater treatment systems.It has been developed and applied in Japan and Thailand for treating domestic and restaurant wastewater as well as polluted river water.With its special stick-like structure,the MSL system has several advantages over traditional land treatment technologies,such as higher hydraulic loading rates,higher nitrogen removal efficiency,and easier clogging control.This paper reviews the history and the current status of MSL system worldwide,focusing on the mechanism,efficiency and design parameters for effective removal of pollutants.The future perspectives of the MLS system is also discussed in detail.

• Key words：soil-based wastewater treatment technology  multi-soil-layering(MSL) system  wastewater treatment

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