臭氧生物活性炭技术应用中水质安全研究 Water Quality Safety of Ozonation and Biologically Activated

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臭氧生物活性炭技术应用中水质安全研究

Water Quality Safety of Ozonation and Biologically Activated Carbon Process in Application

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摘要:臭氧生物活性炭工艺已经成为主要的饮用水深度处理技术之一,在国内外得到了应用,但是在运行中也陆续发现了一些新的水质问题,成为威胁饮用水水质安全的潜在因素.针对以上问题,对生产规模的臭氧生物活性炭组合工艺(60万m~3/d)进行了系统调查研究,包括微生物安全性、水生动物过度滋生和化学稳定性等,期间并结合中试(10 m~3/h)进行了研究.结果表明,臭氧生物活性炭技术在微生物安全方面是可靠的,应加强运行管理;臭氧生物活性炭工艺在运行过程中,会孳生大量的水生动物,这在我国高温高湿热地区更为显著,而且水生动物生长具有一定规律性,影响水质安全;在原水碱度低的情况下,臭氧生物活性炭工艺出水pH值会出现大幅下降现象,严重影响了水质化学稳定性.
Abstract:Ozonation and biologically activated carbon process, one of advanced treatment technologies, has been applied in many places at home and abroad. However, some emerging water quality problems appeared in operation. Drinking water treatment plant (6 × 10~5 m~3/d) with ozonation and biologically activated carbon process (O_3-BAC process) was investigated systematically, including microbial safety, the excessive growth of aquatic microorganism and chemical stability of water quality. And some experiments were done in the pilot plant (10 m~3/h) at the same time. O_3-BAC process is reliable in microbial safety, but operation management should be enhanced. A good number of aquatic microorganisms grow immoderately during operation of O_3-BAC process, which is more serious especially in place with high temperature and humidity. With prolong of runtime, the growth of aquatic microorganisms varies regularly. That is hazardous to water quality safety. When raw water is low with alkalinity, decrease of pH in O_3-BAC process is obvious. That will seriously affect on chemical stability.
作 者: 乔铁军    张锡辉    QIAO Tie-jun    ZHANG Xi-hui  
作者单位:乔铁军,QIAO Tie-jun(清华大学深圳研究生院,深圳,518055;深圳市水务(集团)有限公司,深圳,518031)
0V}4\Vi)f0bz:MF0张锡辉,ZHANG Xi-hui(清华大学深圳研究生院,深圳,518055) 
期 刊:环境科学   ISTICPKU  
Journal:CHINESE JOURNAL OF ENVIRONMENTAL SCIENCE  
年,卷(期):2009, 30(11) 
分类号:X52 TU991.2 
关键词: 饮用水    水质安全    微生物安全性    水生动物    化学稳定性   
Keywords: drinking water    water quality safety    microbial safety    aquatic microorganism    chemical stability   
机标关键词:臭氧生物活性炭工艺技术应用水质安全安全研究ApplicationActivated Carbonwater qualitychemical stabilityactivated carbonoperation水生动物Drinking water treatment微生物安全性化学稳定性advanced treatmenthigh temperature运行过程饮用水pilot plant活性炭技术 
基金项目:国家重大科技专项项目 
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