高温、高藻期臭氧/生物活性炭工艺的处理效果研究  

Study on Ozone/Biological Activated Carbon Process for High Algae Raw Water Treatment under High Temperature

作　　者：段蕾[1] 李伟光[1] 吕炳南[1] 韩宏大[2] 丁驰[1] 马晓娜[1] 王广智[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]天津市自来水集团有限公司,天津300040

出　　处：《中国给水排水》2007年第9期37-39,共3页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2002AA601140)

摘　　要：针对高温、高藻期原水较难处理的特点,采用臭氧/生物活性炭工艺进行了中试研究。试验结果表明,臭氧/生物活性炭工艺对有机物的去除效果明显,对CODMn的平均去除率为73.76%,对UV254的平均去除率为86.38%。高温条件下,大量生长的细菌随出水流出反应器,在投氯量为1 mg/L时可杀灭生物活性炭工艺出水中的大部分细菌,剩余细菌数<10 CFU/mL,对细菌的杀灭率为99%,能够保证出水的微生物安全性。同时为避免细菌在活性炭表面大量繁殖而堵塞活性炭微孔,应适当缩短反冲洗周期,以3～4 d为宜。臭氧/生物活性炭工艺对藻类的平均去除率为75%,且在其出水中未检测出藻毒素。Aimed at difficult treatment of high algae raw water under high temperature, a pilotscale study was made using ozone/biological activated carbon （BAC） process. The result indicates that organic matter can be removed effectively by ozone/BAC process. The removal rates of CODMn and UV254 are 73.76% and 86.38% respectively. Because of high temperature, a lot of breeding bacteria flow out of the reactor with the treated water, Low dosage of chlorine （ 1mg/L） is effective to inactivate most breakthrough bacteria （ lethality 99% ）. The bacteria in the treated water are under 10 CFU/mL, and safety of microorganism in the treated water is achieved. At the same time, a backwashing should be conducted at 3 to 4 day intervals in order to avoid the breeding bon. The ozone/BAC process can remove 75% algae bacteria clogging interspaces in activated carand no algae toxins are detected in its treated water.

关 键 词：臭氧 生物活性炭 高藻原水 高温 CODMN UV254 反冲洗 

分 类 号：TU991.25[建筑科学—市政工程]