南方某水厂原设计规模10万m3/d,原水为水库水,水质达Ⅱ类水标准.由于需水量增长,需新增3万m3/d产水量,而水厂可供扩建的用地无法设置常规处理工艺的沉淀池和滤池.经方案设计,采用在平流沉淀池后部布置浸没式超滤膜的净水组合工艺,并根据用地特点,因地制宜地布置了膜池辅助车间,使水厂总处理能力达到13万m3/d.详细介绍了平流沉淀池后置浸没式超滤膜工艺设计及膜清洗方式.%The former design scale of some water treatment plant in southern China was 1×105 m3 /d, and the raw water could meet second class water standards. Due to the increase of demand, the production needed to increase by 3×104 m3/d, while the available land for expansion could not place the traditional sedimentation tank and filter tank. In the process design, the postposition submerged ultrafiltration membrane process after horizontal sedimentation tank was employed, and the membrane tank subsidiary workshop was placed according to the local circumstances, so as to increase the total water treatment plant production to 1. 3×105 m3/d. This paper introduced the postposition submerged ultrafiltration membrane process design and cleaning method in detail.
展开▼
