Analysis of the development characteristics and problems of water supply and drainage in major cities in the Yellow River basin under the background of high-quality development
In response to the actual needs of the high-quality development of the Yellow River basin,the characteristics of the water supply and drainage of the Yellow River basin are systemati-cally analyzed through the establishment of an index system,the collection of basic data,induction and summary.The results showed as follows:From 2017 to 2021,the water-using population in the Yellow River basin showed a slow rising trend,with an average annual growth rate of 3.80％,and the water supply pressure in the basin was large.By the end of 2021,the total amount of water leakage from public water supply in the provinces and regions of the Yellow River basin is 590 mil-lion m3,and the ratio of water leakage to water leakage from public water supply is higher than 9％in 41 cities,and the amount of water leakage from urban public pipe networks is high.In 2022,the average centralized collection rate of urban domestic sewage in the provinces and regions of the Yellow River basin will be 71.8％.Among them,the centralized collection rate of domestic sewage in Sichuan province and Qinghai province was 64.2％and 53.9％,respectively,and the level of centralized collection rate of urban domestic sewage in the basin was different.It is suggested that the governments of all regions in the basin should attach great importance to improving the efficien-cy of water resources utilization,expanding the fields and scale of renewable water utilization,and strengthening the intelligent supervision of urban water supply in an all-round way to further re-duce the leakage of pipe network,so as to alleviate the pressure of water supply in the basin.For cities with low centralized collection rate of urban domestic sewage,it is necessary to strengthen the construction planning of sewage treatment facilities,routine maintenance of sewage collection pipe network,systematic assessment of the impact of"clean water"inflow sewage pipe network and the feasibility of clearing,so as to provide basic guarantee for improving the operation efficien-cy of sewage treatment system.
Yellow River basinHigh-quality developmentWater facilityDrainage facility
万方数据
维普
