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为达到消毒目的,同时控制消毒副产物(DBPs)的生成,需要对有关水质的变量,如加氯量和接触时间、温度、pH和总有机碳(TOC)等的影响进行研究。本文探讨了在氯胺为残余消毒剂且接触时间较短的情况下,温度等水质变量对三卤甲烷(THMs)和卤代乙酸(HAAs)生成量的影响。结果表明,TOC和液氯接触时间对DBPs的影响最大,加氯量、pH和温度也影响DBPs的生成。有些变量的反应呈线性,有些则是非线性的。大多数情况下;THM浓度高于HAA浓度,相反情况也存在。应调查DBPs在不同条件下的生成量,从而确定用氯消毒的最佳方式,降低DBPs浓度。
To achieve the purpose of disinfection, and to control the generation of disinfectant by-products (DBPs) at the same time, the variables related to water quality, such as the amount of chlorine added and contact time, temperature, pH, and total organic carbon (TOC), need to be studied. This article discusses the effect of temperature and other water quality variables on the production of trihalomethanes (THMs) and haloacetic acid (HAAs) in the presence of chloramine as a residual disinfectant and a short exposure time. The results showed that the contact time between TOC and liquid chlorine had the greatest impact on DBPs, and the chlorine addition, pH, and temperature also affected the formation of DBPs. Some variables respond linearly, while others are nonlinear. In most cases, the THM concentration is higher than the HAA concentration, and the opposite is true. The amount of DBPs produced under different conditions should be investigated to determine the best way to disinfect chlorine and reduce the concentration of DBPs.