摘要
自来水厂常规处理工艺中产生的排泥水量可占到总水量的3%~7%,若直接排放将严重影响河道水质及航运、泄洪能力。文中对上海市某自来水厂排泥水应急处理系统工艺设计进行简要介绍,该工艺采用高效组合澄清系统+叠螺脱水机,使排泥水经过调节、混凝反应、絮凝反应、斜管澄清、脱水后达标排放,污泥含水率降至75%以下。此外,系统采用一体化的前端处理装置,在施工时间及空间上具有很大的优越性,力求为自来水厂排泥水处理问题提供参考。
Amount of sludge wastewater from conventional treatment process of WTP can account for 3%~7% of the total water quantity. It will seriously affect water quality, navigation and flood discharge capacity of river by discharging directly. This paper briefly introduces the emergency engineering design of sludge wastewater treatment project for WTP in Shanghai City. The process adopts high-efficiency comagnetic-flo system and stacked screw dehydrator. Sludge wastewater discharged could up to the standard after adjustment, coagulation reaction, flocculation reaction, inclined tube clarification and stacked screw dehydration, and the moisture content of sludge is reduced to below 75%. In addition, the system adopts an integrated front-end treatment device, which has great advantages in construction time and space, and strives to provide reference for sludge water treatment of sludge wastewater.
作者
张念琦
ZHANG Nianqi(Shanghai Yunshui Engineering Design Co.,Ltd.,Shanghai201700,China)
出处
《净水技术》
CAS
2022年第1期140-146,179,共8页
Water Purification Technology
关键词
水厂
排泥水
干泥量
高效组合澄清系统
叠螺脱水机
water treatment plant(WTP)
sludge wastewater
dry sludge quantity
high-efficiency comagnetic-flo system
stacked screw dehydrator
