Technology approach and development mode on distributed treatment of organic contaminants in rural towns and villages

The characteristics and treatment performance of rural domestic sewage and solid organic contaminants in China were analyzed, and relevant government policies and advanced foreign experiences were also discussed. The technology approach and development mode of the distributed treatment based on the combination of flexible suspended carrier moving bed biofilm reactor (SC-MBBR) system and aerobic digestion for the degradation of organic contaminants in rural towns and villages was proposed, which could achieve synergistic treatment and reclamation of domestic sewage, excess sludge, straw, kitchen waste and livestock manure. With regard to the construction, operation and maintenance of organic contaminants disposal projects in rural towns and villages, a three-level joint governance mode consisting of projects packaging, decentralized and centralized treatment, and optimized management of county projects was proposed from aspects of overall planning, integrated construction and unified management, combined with the government policies, modern financial innovation modes, networking and intelligent application.