粉末活性炭/超滤组合工艺处理微污染含藻水效果  

Treatment of micro-polluted alga-rich water with PAC and ultrafiltration integrated process

作　　者：刘永旺[1] 李星[1] 杨艳玲[1] 梁爽[2] 刘玲[1] 任家炜[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]北京市规划委员会东城分局,北京100013

出　　处：《中南大学学报（自然科学版）》2014年第8期2928-2933,共6页Journal of Central South University:Science and Technology

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07404-003)

摘　　要：采用粉末活性炭/超滤(PAC/UF)和单独UF处理微污染含藻水,分析2种工艺对水中污染物和微囊藻毒素(MC-LR)的去除效果以及PAC对膜污染控制效果。研究结果表明:2种工艺均能有效去除含藻水中的叶绿素a。反应器内亚硝化菌成熟时间为15 d左右,硝化菌的成熟时间为20 d左右,硝化菌成熟明显滞后于亚硝化菌。单独UF工艺对UV254和溶解性有机物(DOC)的平均去除率分别为11.5%和15.0%,PAC/UF工艺对UV254和DOC的平均去除率分别为32.7%和23.8%,PAC明显提高了超滤工艺对有机物去除效果,将MC-LR平均去除效果从18.5%提高至43.0%,同时,PAC有效减少了含藻水超滤过程膜污染。生物粉末活性炭与超滤联用成为一种经济、高效的MC-LR控制技术。An integrated process of powdered activated carbon（PAC） and ultrafiltration（UF） and the independent UF were conducted to treat a micro-polluted alga-rich water. Effects of the two treatments on pollutant and microcystin-LR removal, as well as fouling control of PAC, were investigated. The results indicate that both of the two processes can remove the chlorophyll-a effectively. The maturities of nitrosomonas group and nitrobacteria are about 15 d and 20 d, respectively. The removal efficiencies of DOC and UV254 for the PAC/UF are 32.7% and 23.8%, and those of the independent UF process are 11.5% and 15.0%. Therefore, PAC can effectively enhance the organic removal and the MC-LR removal increases from 18.5% to 43.0% with the PAC addition, Moreover, PAC can mitigate the membrane fouling of UF process of alga-rich water. The integrated process of biological powdered activated carbon and UF tends to be a both economical and efficient technology for the treatment of MC-LR.

关 键 词：粉末活性炭 超滤 微囊藻毒素 

分 类 号：TU991.2[建筑科学—市政工程]