水质化学稳定性沿工艺流程变化研究  

Research on variation of water quality chemical stability during the water treatment process

作　　者：张庆[1] 梅红[2] 

机构地区：[1]合肥供水集团,合肥230011 [2]东华工程科技股份有限公司,合肥230024

出　　处：《工业用水与废水》2012年第4期11-15,共5页Industrial Water & Wastewater

摘　　要：通过研究水质化学稳定性随水处理工艺流程的变化,探讨影响水质化学稳定性的因素。结果表明:水处理中碱度消耗工艺(混凝、生物活性炭和臭氧氧化工艺)均使水质化学稳定性下降。生物活性炭滤池运行初期生物膜未形成或尚不成熟时,对水质化学稳定性基本无影响,相反,初期活性炭表面金属溶出还可能改善水质化学稳定性。氯胺消毒基本不影响水质化学稳定性,投加NaClO可提高水质化学稳定性。混凝剂投加后增加水中无机阴离子(SO42-和Cl-),增加水体对管道的腐蚀倾向。Through studying the variation of water quality chemical stability during the water treatment process, the factors influencing the water quality chemical stability were discussed. The results showed that： alkalinity consumption processes （coagulation, biological activated carbon and ozone oxidation） deteriorated the water quality chemical stability. There was almost no influence on water quality chemical stability when biofilm was not formed or not yet mature in the early operation period of biological activated carbon filter. On the contrary, the metal precipitation on the surface of the activated carbon happened in the initial stage might improve the water quality chemical stability. The water quality chemical stability was almost not influenced by chloramines disinfection, but was improved by adding NaCl0. As coagulant dosing increased the concentration of the dissolved inorganic anions （SO42- and Cl-）, the corrosion tendency of the iron pipe was also aggravated.

关 键 词：水质化学稳定性 水处理工艺流程 混凝 生物活性炭 臭氧氧化 

分 类 号：TU991[建筑科学—市政工程]