分布式村镇有机污染物综合处置途径与建设模式

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

分析了我国农村生活污水及有机固体废物的特点和治理现状,结合当前国家有关政策和国外先进经验,提出了基于柔性悬浮填料移动床生物膜反应器(SC-MBBR)污水处理工艺和好氧发酵有机固体废物处理工艺组合的分布式村镇有机污染物处理技术途径和建设模式,旨在实现对生活污水、剩余污泥、秸秆、餐厨垃圾和畜禽粪便的协同处理和资源化利用;针对村镇有机污染物处置项目的建设与运营维护,从总体规划、统筹建设和统一管理3个方面,结合国家政策、现代金融创新手段及网络化、智能化应用等提出了将县域项目整体打包、分散和集中处理、优化管理相结合的三级联治模式。

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.