日本净化槽技术在农村生活污水处理中的应用

引进日本净化槽技术在中国浙江农村污水处理中应用,探索净化槽技术在浙江农村地区的推广应用前景。膜式净化槽污水处理系统应用先进的浸没式平板膜组件,采用MBR工艺,实现对污水中有机物、氮和磷营养盐类的有效去除。正常工况条件下,监测结果表明,处理系统对COD、BOD5、氨氮、总磷和悬浮物的平均去除率分别为83.64%、84.46%、97.94%、94.13%和93.95%。膜式净化槽系统处理出水水质好且稳定,可直接回用,适宜对水质要求较高和经济条件较好的地区选用。今后在中国农村推广应用净化槽,需加强维护管理制度建设。

Application of Japanese Johkasou technology in treatment of rural domestic sewage

Johkasou wastewater treatment technology introduced from Japan was applied in a village located in Zhejiang Province to investigate its popularizing prospects. The integrated membrane separated-Johkasou with advanced submerged plat membrane could effectively remove organic pollutants, nitrogen and phosphorus nutrients from wastewater by using MBR process. Under the normal operating conditions, the average removal efficiencies of COD, BOD₅, NH₃-N, TP and SS by membrane separated-Johkasou were 83.64%, 84.46%, 97.94%, 94.13% and 93.95%, respectively. The treated effluent of the integrated membrane separated-Johkasou could be directly reused due to high water quality. In summary, the Johkasou wastewater treatment technology is suitable for developed rural areas with strict requirements for water quality. In order to promote the application and popularization of Johkasou in rural China, it is necessary to strengthen the institutional construction of maintenance management.