沪郊农村生活污水资源化利用技术及实践探析

Analysis on Technology and Practice of Resource Utilization of Rural Domestic Sewage in Suburbs of Shanghai

摘要:

随着农村生活污水治理理念不断发展，治理方式逐步向污染治理与资源利用协同转变。为分析农村生活污水资源化利用的技术路线、运行效果及经济性，结合上海市某农村地区典型工程实践开展研究。结果表明，农村生活污水资源化利用以污水中的水资源及氮、磷等营养物质循环利用为目标，可根据村庄人口集聚程度、污水收集条件及受纳环境，形成集中收集利用和分散就地利用两类技术模式，满足不同农村地区的治理需求；资源化利用模式充分利用农村地区林地、绿地等生态受纳空间，实现污水中的水资源及氮、磷等营养物质的循环利用，在降低运行能耗和运维成本方面具有一定优势。

Abstract:

With the continuous development of the concept of rural domestic sewage treatment, the treatment methods are gradually shifting towards the coordinated development of pollution control and resource utilization. To analyze the technical routes, operational effect and economic performance of rural domestic sewage resource utilization, the typical engineering practices in a rural area of Shanghai are studied. The results show that the resource utilization of rural domestic sewage aims at the recycling of water resources and nutrients such as nitrogen and phosphorus in the sewage. According to the degree of population concentration in the village, sewage collection conditions and receiving environment, two technical models of centralized collection and utilization and decentralized local utilization can be formed to meet the treatment needs of different rural areas. The resource utilization model makes full use of ecological receiving spaces such as forest land and green spaces in rural areas, achieving the recycling of water resources and nutrients like nitrogen and phosphorus in sewage, which has certain advantages in reducing operational energy consumption and maintenance costs.