Abstract:
A biological aerated filter-air flotation-sand filter process has been adopted to treat power plant wastewater.The effluent has been used as make-up water to the circulating water system.The practical operation result shows that the process has high efficiency and stability.Using this process,an effluent with turbidity ≤1 NTU,CODMn ≤5 mg /L,NH3-N ≤2 mg /L and bacteria number ≤1 000 mL-1 has been obtained.This meets the make-up water standard of circulating water systems.the experience obtained from project design and operation has been discussed.
Key words:
biological aerated filter,
aerated flotation,
power plant wastewater,
reuse,
circulating water
摘要：
采用曝气生物滤池-气浮-砂滤工艺处理电厂综合废水，其出水补至电厂循环冷却水系统。实际运行结果表明，该工艺处理效率高，运行稳定，出水浊度≤1NTU，CODMn≤5mgL，氨氮≤2mgL，异养菌≤1000mL-1，达到电厂循环水补水水质要求。此外还对工程设计及运行中的经验进行了讨论。
关键词:
曝气生物滤池,
气浮,
电厂废水,
回用,
循环水
CLC Number:
WANG Jing, YANG Baohong, WANG Zhengjiang, HE Huiyong, HUANG Deyong, YANG Baoli. Application of biological aerated filter-air flotation technology to power plant wastewater reuse[J]. INDUSTRIAL WATER TREATMENT, 2002, 22(12): 57-59.
王璟, 杨宝红, 王正江, 和慧勇, 黄德勇, 杨宝莉. 曝气生物滤池-气浮工艺处理电厂废水及回用[J]. 工业水处理, 2002, 22(12): 57-59.