A research on sewage disposal technology in rural south China

Untreated rural sewage is becoming one of the main reasons for the deterioration of rural water environment at present.In regard to the decentralized wastewater treatment in rural China,current technologies are presented with focuses on theoretical principle,features,deficiencies and applications.Then some technical indexes are compared and future development is discussed concerning decentralized sewage disposal technologies in rural areas Lastly the direction id pointed out that,future technologies to be developed possess the merits of high hydraulic load,flexible dimensions and mixed treatment units.