本文關(guān)鍵詞：曝氣生物濾池和地下滲濾系統(tǒng)對(duì)含磺胺類抗生素生活污水的處理研究　出處：《北京化工大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 曝氣生物濾池 地下滲濾系統(tǒng) 磺胺類抗生素 生活污水 微生物群落

【摘要】：藥品及個(gè)人護(hù)理用品(Pharmaceuticals and personal care products, PPCPs)作為近年來水環(huán)境中的新型污染物,其環(huán)境風(fēng)險(xiǎn)和安全隱患受到了世界范圍內(nèi)的關(guān)注。磺胺類抗生素作為PPCPs中的一種,在國內(nèi)外水環(huán)境中普遍被檢出。此外,由于我國城市污水收集系統(tǒng)設(shè)置的不完善,目前存在很多排污口不經(jīng)過任何處理向河流中直排的現(xiàn)象,排入河流中的污水除了含有一些常規(guī)污染物外,通常含有一定量的磺胺類抗生素,這些污水進(jìn)入受納水體后嚴(yán)重的破壞了其生態(tài)環(huán)境。本文針對(duì)目前我國水環(huán)境中磺胺類抗生素污染現(xiàn)狀,并結(jié)合“北京市大興區(qū)新鳳河南湖路橋至孫村閘河段水質(zhì)改善研究與工程示范”(北京市科技計(jì)劃)課題中排污口污水治理的需要,研究了適用于城市河流排污口截污的曝氣生物濾池和地下滲濾系統(tǒng)組合工藝對(duì)生活污水中常規(guī)污染物及磺胺噻唑、磺胺甲惡唑、磺胺嘧啶等三種磺胺類抗生素的去除效果。研究曝氣生物濾池和地下滲濾系統(tǒng)組合工藝對(duì)生活污水中COD、氨氮、TN、TP的去除效果。結(jié)果表明,曝氣生物濾池在濾速為0.6 m/h,氣水比為5：1,反沖洗周期為5天時(shí),達(dá)到最佳運(yùn)行狀態(tài),對(duì)COD、氨氮、TN、TP的去除率分別達(dá)到85.7%、82.6%、23.8%、53.8%。地下滲濾系統(tǒng)采用間歇的方式運(yùn)行,每個(gè)周期連續(xù)進(jìn)水12h,放空12h,進(jìn)水為曝氣生物濾池出水,水力負(fù)荷為5 cm·h-1,對(duì)COD、氨氮、TN、TP的去除率分別達(dá)到41.3%、62.8%、64.3%、67.1%。組合工藝對(duì)COD、氨氮、TN、TP總的去除率分別為91.6%、93.5%、72.8%、84.8%。研究模擬生活污水中磺胺類抗生素的去除效果。結(jié)果表明組合工藝對(duì)進(jìn)水濃度分別為200μg/L的磺胺噻唑、磺胺甲惡唑、磺胺嘧啶3種磺胺類抗生素的去除率分別為53.01%、63.3%和68.8%,去除效率磺胺嘧啶磺胺甲惡唑磺胺噻唑。采用MiSeq高通量測(cè)序技術(shù),分析了3種磺胺類抗生素的添加對(duì)曝氣生物濾池中微生物多樣性和群落結(jié)構(gòu)的影響。使用Chaol、Shannon、 Coverage、OTU等指數(shù)對(duì)微生物多樣性進(jìn)行了分析,結(jié)果表明,添加抗生素初期,微生物多樣性降低,隨著時(shí)間的推移微生物多樣性有所恢復(fù)但是仍然低于添加抗生素前的水平。通過使用分類學(xué)分析方法對(duì)微生物群落的結(jié)構(gòu)進(jìn)行了研究,結(jié)果表明,3種磺胺類抗生素對(duì)生物膜中微生物的門、綱、屬都產(chǎn)生了一定的影響。
[Abstract]:Pharmaceuticals and personal care products (Pharmaceuticals and personal care products, PPCPs) as the model pollutant in water environment, the environmental risk and safety hazards by the worldwide attention. As a kind of sulfonamide antibiotics in PPCPs, in the domestic and foreign environment is generally positive. In addition, due to the sewage collection system our city is not perfect, there are many sewage without any treatment directly to the river discharge phenomenon in the sewage discharged into the river, in addition to containing some conventional pollutants, sulfa antibiotics usually contain a certain amount of the sewage into the receiving water after serious damage to the ecological environment. Aiming at the sulfa water in China Environmental antibiotics pollution situation, combined with the "Beijing City, Daxing District Xin Feng River in Luqiao city to the Sun Village Gate reach water quality improvement research and engineering demonstration "(Beijing science and technology plan) to sewage outfall sewage treatment project, research for city river outfall sewage biological aerated filter and underground infiltration system combination process of conventional pollutants and sulfathiazole sewage, sulfamethoxazole, removal of three sulfonamide antibiotics such as sulfadiazine. Study on biological aeration filter and underground infiltration system combination technology on wastewater COD, ammonia nitrogen, TN, the removal rate of TP. The results showed that the biological aerated filter in the filter speed is 0.6 m/h, gas water ratio is 5:1, the backwash cycle for 5 days, to achieve the best running status of COD, TN, TP, ammonia nitrogen removal the rate reached 85.7%, respectively, 82.6%, 23.8%, underground infiltration system 53.8%. using intermittent operation mode, each cycle of continuous influent 12h, vent 12h, inlet for biological aerated filter effluent, the hydraulic load was 5 cm - H-1, COD, TN, ammonia, TP to The removal rate reached 41.3%, respectively, 62.8%, 64.3%, 67.1%. combined process of COD, TN, TP, ammonia nitrogen, total removal rates were 91.6%, 93.5%, 72.8%, 84.8%. removal effect simulation of sulfonamide antibiotics in living wastewater. The results show that the combined process is respectively 200 g/ L of sulfathiazole influent concentration, sulfamethoxazole sulfamethoxazole, 3 sulfonamide sulfadiazine removal rates were 53.01%, 63.3% and 68.8%, the removal efficiency of sulfadiazine and sulfamethoxazole sulfathiazole. By high-throughput MiSeq sequencing technology, analyzes the influence of adding 3 kinds of sulfonamide antibiotics in biological aerated filter in microbial diversity and community structure. The use of Chaol, Shannon. Coverage, OTU and other index were analyzed on microbial diversity. The results showed that the addition of antibiotics early, microbial diversity decreased, with the passage of time the diversity of the microbial recovery but still below the tim The structure of the microbial community was studied by using the method of taxonomy. The results showed that the 3 sulfonamide antibiotics had certain effects on the microbes in the biofilm.

【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：X799.3

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