陕南某水厂改扩建工程工艺技术探讨

Discussion on Technologies about Renovation and Expansion of a Water Supply Plant in Shaanxi Province

陕南某水厂供水能力为4×104m3/d,为使出水水质达到《生活饮用水卫生标准》(GB 5749—2006),决定实施改扩建工程。工程采用直列式混合器/微涡旋絮凝反应池/V型斜板沉淀池/D型滤池/紫外线与液氯联合消毒处理工艺,并考虑了高锰酸钾应急制备投加系统,以确保供水安全可靠。

The design capacity of a water supply plant in Shaanxi Province is 4×10^4m^3/d. In order to make the finished water meet the requirement of the Standards for Drinking Water Quality （ GB 5749 -2006） , a renovation and expansion project was decided to be conducted. A combined process of in-line mixer, micro-vortex coagulation and sedimentation tank, V-type lamella settler, D-filter, UV and chlorine disinfection would be used, and an emergency system for potassium permanganate preparing and dosing was taken into consideration to ensure the safety of water supply.