摘要
Abstract
Many provinces and cities in the south,limited by the mountainous geography,and the scattered nature of villages and inhabitants,the municipal water plant pipe network cannot be extended supply,therefore,only the construction of distributed water supply stations can be adopted,to meet the needs of a single village water supply.The traditional single-village water supply station mostly uses the three-pool method,integrated sand filter tank equipment and other forms of construction,but whether it is the three-pool method,or the integrated sand filter tank equipment,the core filtration method is still traditional sand filtration,poor filtration accuracy,the requirements for the front-end flocculation and precipitation treatment process are strict,the quality of effluent is unstable,and professional operation and maintenance management is required.The filter material of the immersion ultrafiltration membrane process is an ultrafiltration membrane,the filtration accuracy is much higher than that of traditional sand filtration,the requirements for the front-end flocculation precipitation process are low.In actual engineering operation,parallel comparison is made between the two processes for treating effluent,it is found that the turbidity of the effluent from traditional water treatment processes is around 15 NTU,the total number of bacteria in effluent is about 2 000 CFU/mL.The turbidity of the effluent from the ultrafiltration process is around 0.1 NTU,and the total number of bacteria in effluent is around 15 CFU/mL,which is far superior to traditional treatment processes.Moreover,the ultrafiltration process has a high degree of automation,making it easier to achieve intelligent and unmanned management.关键词
单村供水/浑浊度/细菌总数/浸没式超滤膜/运维管理Key words
single village water supply/turbidity/total bacterial count/immersion ultrafiltration membrane/operation and maintenance management分类
建筑与水利
