本文選題：單過硫酸氫鉀　切入點：氯消毒　出處：《環(huán)境科學(xué)》2016年11期

【摘要】：以北京田村山凈水廠原水和炭后出水作為試驗用水,對新型消毒劑單過硫酸氫鉀復(fù)合粉消毒后生成的消毒副產(chǎn)物(disinfection by-products,DBPs)進行定性分析.向受試水樣中分別投加單過硫酸氫鉀復(fù)合粉和次氯酸鈉,比較了復(fù)合粉消毒和氯消毒的DBPs生成量,并通過umu試驗對水樣消毒后的遺傳毒性變化進行測試.結(jié)果表明,測試水樣投加單過硫酸氫鉀復(fù)合粉消毒前后的有機物種類變化不大,但仍有新的鹵代烴和鹵代物生成.與氯消毒相比,單過硫酸氫鉀復(fù)合粉消毒后生成的三鹵甲烷(THMs)和鹵乙酸(HAAs)的含量更低.另外,根據(jù)umu測試的結(jié)果,經(jīng)單過硫酸氫鉀復(fù)合粉消毒后原水和炭后水的遺傳毒性均明顯低于氯消毒.然而在水中有機物較多和消毒劑投加量較大時,單過硫酸氫鉀復(fù)合粉用于消毒仍有一定安全風(fēng)險.
[Abstract]:Taking the raw water and carbon effluent from Beijing Tiancuanshan Water purification Plant as experimental water, The disinfection by-product disinfection by-productsDBPsof a new disinfectant, potassium persulfate compound powder, was qualitatively analyzed. Potassium persulfate compound powder and sodium hypochlorite were added to the water sample, respectively. The amount of DBPs produced in disinfection of compound powder and chlorine was compared, and the genotoxicity of water sample after disinfection was tested by umu test. The results showed that the kinds of organics changed little before and after disinfection with potassium persulfate compound powder. However, there are still new halogenated hydrocarbons and halogenates. Compared with chlorine disinfection, the contents of trihalomethane (THMs) and haloacetic acid (Has) are lower after disinfection with potassium peroxyhydrogen sulfate composite powder. In addition, according to the results of umu test, The genotoxicity of raw water and carbon water after disinfecting with potassium persulfate compound powder was obviously lower than that of chlorine disinfection. However, when the amount of disinfectants and organics in water was more than that of potassium persulfate composite powder, there was still a certain safety risk for the disinfection of potassium persulfate composite powder.
【作者單位】： 清華大學(xué)環(huán)境學(xué)院;成都潤興消毒藥業(yè)有限公司;
【基金】：國家水體污染控制與治理科技重大專項(2012ZX07404-002) 國家自然科學(xué)基金重大項目(51290284)
【分類號】：TU991.25

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本文編號：1674149