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  本文關鍵詞： 三鹵甲烷 鹵乙酸 O_3/H_2O_2 溴代消毒副產(chǎn)物　出處：《華北電力大學》2013年碩士論文　論文類型：學位論文

【摘要】：隨著我國水源水水質(zhì)不斷惡化,供水廠傳統(tǒng)水處理工藝已經(jīng)不能滿足當前生活飲用水衛(wèi)生水質(zhì)指標要求。臭氧-生物活性炭工藝作為目前應用廣泛的深度處理工藝,特別是當水源水為地表水時,該工藝的實用價值更為突出。當水源水中含有溴離子時,投加臭氧不僅會產(chǎn)生致癌物溴酸鹽,而且也會產(chǎn)生大量的溴代消毒副產(chǎn)物,且其毒性高于氯代消毒副產(chǎn)物,因此研究臭氧氧化含溴水源水中消毒副產(chǎn)物生成的影響對于保障飲用水安全具有重要意義。 本課題分兩個階段進行。第一階段是在靜態(tài)試驗中,研究了不同臭氧投加量和溴離子濃度配水中,三鹵甲烷和鹵乙酸生成量及生成種類變化規(guī)律。第二階段是在某水廠示范工程的臭氧-生物活性炭動態(tài)工藝中,研究了不同運行工況下工藝段出水常規(guī)水質(zhì)指標和消毒副產(chǎn)物的生成情況。并與水廠傳統(tǒng)處理工藝進行比較,示范工程評估階段設計六個運行工況,優(yōu)化工藝運行參數(shù)。 研究表明：(1)靜態(tài)試驗中,臭氧化處理不同溴離子濃度配水時,水中三鹵甲烷和鹵乙酸的生成量隨著臭氧投加量的增加呈現(xiàn)先增加后減少的趨勢；當臭氧投加量為2.0mg/L,三鹵甲烷和鹵乙酸生成量均達到最大；(2)配水中溴離子濃度越高,生成的溴代消毒副產(chǎn)物比例越大；(3)實際水廠示范工程中,臭氧投加量低于2.0mg/L,溴酸鹽產(chǎn)量未超標(低于l0μg/L),臭氧化處理工藝對水的濁度及有機物去除效果良好；(4)示范工程單獨臭氧工藝對三鹵甲烷和鹵乙酸的生成總量有較好的抑制效果,但對溴代消毒副產(chǎn)物抑制效果不佳；采用O3/H2O2高級氧化技術對鹵乙酸的控制效果優(yōu)于三鹵甲烷；(5)對比O3-BAC和水廠傳統(tǒng)水處理工藝出水水質(zhì),臭氧化工藝對有機物去除效果良好,且O3-BAC消毒時需氯量較低,出水中的三鹵甲烷(THMs)和鹵乙酸(HAAs)生成量均低于傳統(tǒng)工藝出水。
[Abstract]:With the deterioration of source water quality in China. The traditional water treatment process in water supply plant can not meet the requirement of drinking water quality. Ozone biological activated carbon process is widely used in advanced treatment process. Especially when the source water is the surface water, the practical value of the process is more prominent. When the source water contains bromine ions, the addition of ozone will not only produce the carcinogen bromate. It also produces a large number of brominated disinfection by-products, and its toxicity is higher than that of chlorinated disinfection by-products. Therefore, it is of great significance to study the effects of ozone oxidation on the formation of disinfection by-products in brominated source water. This subject is divided into two stages. The first stage is to study the different ozone dosage and bromine ion concentration in the static experiment. The formation amount of trihalomethane and haloacetic acid and the variation rule of formation species. The second stage is in the ozonic-biological activated carbon dynamic process of a water plant demonstration project. The conventional water quality index of effluent and the generation of disinfection by-products were studied under different operating conditions. Compared with the traditional treatment process of water plant, six operating conditions were designed in the stage of demonstration project evaluation. Optimize process operation parameters. The results showed that in the static test, the amount of trihalomethane and haloacetic acid in water increased first and then decreased with the increase of ozone dosage. When the ozone dosage is 2.0 mg / L, the production of trihalomethane and haloacetic acid reaches the maximum. (2) the higher the concentration of bromine ions in the mixed water, the larger the proportion of brominated disinfection by-products; (3) in the actual water plant demonstration project, the ozone dosage is less than 2.0 mg / L, the bromate output is less than the standard (less than 10 渭 g / L ~ (-1)), the ozonation treatment process has a good effect on the turbidity and organic matter removal of the water. 4) the ozone process alone in the demonstration project has a good inhibitory effect on the total production of trihalomethane and haloacetic acid, but not on brominated disinfection by-products. The control effect of O _ 3 / H _ 2O _ 2 advanced oxidation technology on halogenated acetic acid is better than that of trihalomethane. Compared with the effluent quality of O3-BAC and traditional water treatment process, the ozonation process has a good removal effect on organic matter, and the chlorine requirement of O3-BAC disinfection is lower. The production of trihalomethane (THMs) and haloacetate (Has) in the effluent were lower than that in the traditional process.
【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU991.2

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