The Sustainable Development Model of Rural Domestic Sewage Treatment in China

With the successive promulgation of rural environmental governance policies in China, rural sewage treatment has become a hot topic. In response to the problem of traditional unified sewage collection and treatment model being difficult to adapt to in rural China, this article systematically investigates academic literature and engineering projects in China since 2000. The main problems existing in the existing rural governance are: the design scale of the project is too large; the water quality of the project inlet design is too high; the sewage pipe network is blocked and damaged; the sewage treatment facilities are not acclimated to the local conditions. Therefore, this article proposes a new model of rural sewage treatment and resource utilization that is ‘source separation, classified discharge, qualitative treatment, and recycling’, and provides three utilization scenarios and suitable technologies. In addition, it also explores the economic performance of this new model. The new sewage treatment concept proposed in this study will provide reference for further improving the rural sewage treatment rate in China.