三峡库区重要支流农村生活污水处理技术及应用模式

Technology and Application Model of Rural Domestic Sewage Treatment in Major Tributaries of Three Gorges Reservoir Area

三峡库区重要支流人口密度高、土地利用强度大、污水总量大,是三峡水库水质安全最为敏感的区域。通过对重要支流农村生活污水情况开展实地调查,在梳理分析研究区生活污水水质水量特点和处理难点的基础上,遵循处理与利用相结合的原则,推荐稳定高效的生态处理工艺和维护简单、投资少的污泥处理方式与资源化处置方式,因地制宜地提出该区域的农村生活污水处理模式和生活污水处理设施建设管理模式。研究成果可为三峡库区高质量发展、生态环境保护和乡村振兴提供技术参考。

Major tributaries of the Three Gorges Reservoir(TGR)area constitutes the most vulnerable part of TGR's water quality safety due to high population density,intense land use,and large total amount of sewage production.Through investigation of domestic wastewater in rural areas of TGR's major tributaries,we analyze the quality and quantity as well as treatment dificulties of domestic wastewater in the study area.On this basis,we recommend prioritizing stable and highly-efficient ecological treatment techniques as well as sludge treatment and resourceful disposal methods with simple maintenance and low investment.We also propose a model for domestic wastewater treatment as well as facility construction and management tailored to local conditions.The findings serve as technical guidance for high-quality development,ecological environment protection and rural revitalization in the Three Gorges Reservoir area.