Analysis of water quantity characteristics of rural rural sewage treatment facilities in Yangtze River Delta region
The discharge characteristics of rural sewage are the basis for evaluating pollution loads and sewage treatment planning,design,construction and maintenance.The determination of rural sewage volume is one of the difficulties in the process.The changing trends of inflow volume during spring festival holiday and rainy season were analyzed based on the 2022 annual data of 306 rural sewage treatment facilities of the Yangtze River Delta region.The research results showed that with the rapid improvement of urbanization level and the change of rural residents'lifestyle,the change of water quantity during the spring festival presented three characteristics,and the sewage quantity design should be based on the characteristics of different types of villages.At the same time,attention should be paid to the diversion of rainwater and sewage of household drainage system so as to reduce rainwater into the collection system in flood season roof and courtyard,while kitchen,courtyard washing,toilet and bathing sewage should be collected.
rural sewagesewage volume characteristicsthe Yangtze River Delta regionrainwatercollection system
万方数据
维普
