摘要
采用生物粉末活性炭／超滤膜工艺（简称BPAC／UF工艺）处理中试沉淀池出水，考察了该工艺对浊度、有机物和氨氮的去除效果。结果表明，BPAC／UF工艺可以将出水浊度控制在0．1 NTU以下，去除率达98％以上；在水温为20～26℃的条件下，对CODMn UV2，4的平均去除率分别为33．8％和44．5％；接触区形成生物粉末活性炭后，系统对NH4-N的去除率稳定在95％以上。膜池内可形成以PAC为骨架的滤饼层，增强透水性，且分段式的BPAC／UF工艺将生物作用和膜滤作用分开发挥，可以缓解膜的不可逆污染。
The combination of biological powdered activated carbon and uhrafihration （BPAC/ UF） was used to treat the effluent from a pilot-scale sedimentation tank, and the removal efficiencies of turbidity, organics and ammonia nitrogen were investigated. The results showed that BPAC/UF could re- duce turbidity to less than 0.1 NTU at a removal rate of over 98%. When the water temperature was 20 to 26 ~C, the average removal rates of CODMn and UV254 were 33.8% and 44.5% respectively. After BPAC was developed in the contactor, the removal rate of ammonia nitrogen was more than 95%. A PAC-skeleton cake layer could form in the membrane tank, thus enhancing water permeability. The seg- mented BPAC/UF process separated biological effects and membrane rejection, which could mitigate irre- versible membrane fouling.
出处
《中国给水排水》
CAS
CSCD
北大核心
2013年第23期69-72,共4页
China Water & Wastewater
基金
上海市国际科技合作基金资助项目(12230707602)
关键词
生物粉末活性炭
超滤
氨氮
膜污染
biological powdered activated carbon （BPAC）
nitrogen
membrane fouling ultrafihration （UF）
ammonia
