An introduction of a multi-soil-layering system: a novel green technology for wastewater treatment in rural areas

作者：Chen Xin^*; Luo An Cheng; Sato Kuniaki; Wakatsuki Toshiyuki; Masunaga Ttsugiyuki

来源：Water and Environment Journal, 2009, 23(4): 255-262.

DOI：10.1111/j.1747-6593.2008.00143.x

• aeration
• hydraulic loading rate
• multi-soil-layering system
• soil mixture block layer
• wastewater treatment
• water-permeable layer

Multi-soil-layering (MSL) systems are designed for municipal wastewater, livestock wastewater and polluted river water treatments. They are mainly composed of soil mixture block layers and water-permeable layers (PL). The MSL system overcomes many of the shortcomings of conventional soil treatment systems such as easy clogging, large land requirement and low hydraulic loading rate. This paper summarizes the structure, purification mechanism and practical application of the systems for different kinds of wastewater treatment. The paper also compares MSL systems with other decentralized systems such as wetland and compact filter systems in their respective structures and treatment efficiencies. Finally, the paper gives a rough evaluation of the lifespan and cost of an MSL system based on its material composition.

• 出版日期2009-12
• 单位浙江大学