PAC-MBR与BPAC-UF处理微污染原水对比研究  

A Comparative Study of PAC-MBR And BPAC-UF Process on Treatment of Micro-Polluted Raw Water

作　　者：李臻[1] 高颖鸿 蔡磊[3] 邓慧萍[1] 史俊[1] 

机构地区：[1]同济大学长江水环境教育部重点实验室,上海200092 [2]挪威科技大学水力与环境工程学院,挪威特隆赫姆100022 [3]中国城市规划设计研究院西部分院,重庆401120

出　　处：《水处理技术》2016年第1期92-95,共4页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07405002)

摘　　要：实验通过分别组建传统一体式PAC-MBR工艺装置和改进型分体式BPAC-UF工艺装置,对比研究了2组工艺装置对微污染源水氨氮和有机物的动态去除能力以及运行过程中的膜污染状况。结果表明,原理相同而构造不同的2组工艺对于氨氮及以COD_(Mn)和UV_(254)表征的有机污染物的去除能力相当,BPAC-UF工艺略显优势。由于BPAC-UF工艺具有较长的水力停留时间(HRT),微生物作用较充分,其抵抗膜污染能力更强。实验同时发现,在原水水质发生较大波动时,BPAC-UF污染物去除能力受影响幅度较PAC-MBR更小。但此时由于微生物分泌物增多,PAC-MBR工艺膜表面形成的炭骨架更利于吸附拦截生物分泌物,降低膜污染。A powdered activated carbon added membrane bioreactor （PAC-MBR） and a biopowdered activated carbon added ultrafiltration reactor （BPAC-UF） were established, respectively. Reactors＇ capability to remove micropollutants in drinking water, as well as their membrane fouling resistance are studied by conducting a series of dynamic filtration experiments. The results show that the two reactors have almost the same ability to remove ammonia and organic pollutants expressed as CODe,, and UV254. The BPAC-UF shows a better ability to resist membrane fouling, thanks to its relatively sufficient biodegradation during a longer hydraulic retention time （HRT）. It＇s also shown that When the raw water quality is dramatically changed, BPAC-UF＇s removal ability is less influenced, while its membrane fouling resistance is more reduced, compared to the PAC-MBR. The later one＇s surface carbon structure on membrane is considered to be favorable in this case, since it helps to adsorb extracellular polymeric substances （EPS）, which is proved to be a main reason for membrane fouling.

关 键 词：PAC-MBR BPAC-UF 微污染原水 膜污染 

分 类 号：X703.1[环境科学与工程—环境工程]