INVESTIGATION OF NON-INSTITUTIONALIZED COUNTRY TOWN DOMESTIC SEWAGE POLLUTION TREATMENT CONDITIONS OF CHONGQING MUNICIPALITY FROM CHINA

摘要

In this paper, we studied the non-institutionalized country town domestic sewage pollution treatment conditions of Chongqing municipality from China. We planned to investigate the number of non-institutionalized country towns and the basic situation of each non-institutionalized country town, especially in the treatment facilities of domestic sewage pollution. We took on-site visits, forum, field sampling and expert consultations to complete the investigation work.The results demonstrated that the non-institutionalized country towns are mainly settlements of middle and small size population, and there are 78.4% noninstitutionalized country towns without sewage treatment facilities. There are 24 districts (counties) withsewage treatment facilities, and artificial wetland system is the main treatment technology for non-institutionalized country town domestic sewage pollution treatment. The government and the Environmental Protection Agency (EPA) of Chongqing should construct sewage treatment facilities in these areas, in the next stage.