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水污染处理文献综述英文.doc


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Application of multi-soil-layer system (MSL) in rural wastewater treatment
Abstract: with the continuous improvement of living in rural farmers, the waterconsumption of residents is increasing, rural sewage emissions will continue toincrease, if not treat effectively, the water environment in rural areas will be seriousdeteriorated, and influence the life quality of rural residents. In this case this paperpresents a decentralized sewage treatment system, multi-soil-layer system technology(MSL) application in the rural sewage treatment, this paper summarizes the newtechnology, youcan better understand and practice, especially in the developingcountrieswhereis in need of this technology. In the foreseeable future, it can protectpublic health and the sustainable development of theenvironment, and it alsoprovidesa new way for rural sewage treatment.
Key words: rural sewage; multi-soil-layering system;distributed
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Introduction
In recent years, with the continuous development of economy, people'sliving standards continue to improve, rural economic development is alsoveryrapid, but the rural economic development and environmentaldevelo technicalsewage treatment plants, such as centralizedsewagetreatment plantsare involved in large investment costs, high operating costs,Because of economic constraints, such systems are less suitable for livestock farms and small munities in rural areas. Whilethe multi-media-soillayer system(MSL) sewage treatment system, this decentralizedsewage treatment system, it has less investment, low operatingcosts, high handling load. Besides, the utility model overes the defects of the prior soilpercolationwhich is easy to be blocked from the space sewage treatment system is one kind of the purification technology of sewerage treatment soil developed in Japan in twentieth Century, the soil system will be modularized, and the module is set up around the water in th

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  • 时间2021-12-05