發(fā)布時(shí)間：2018-03-24 02:14

  本文選題：凹凸棒土　切入點(diǎn)：超濾膜生物反應(yīng)器　出處：《中國(guó)環(huán)境科學(xué)》2017年04期

【摘要】：采用高濃度純化凹凸棒土-超濾膜生物反應(yīng)器(HCPA-UF-MBR)耦合工藝處理低溫高色高氨氮水源水,考察HCPA對(duì)UF-MBR系統(tǒng)除污效能與膜污染控制的影響.基于污泥混合液粒徑分布、Zeta電位、有機(jī)物相對(duì)分子質(zhì)量分布、傅里葉紅外光譜與三維熒光光譜分析探究HCPA投加后UF-MBR中污泥混合液性能的變化,研究清洗前后膜的微觀性貌、洗脫液的物質(zhì)成分,明確HCPA在減緩膜污染方面發(fā)揮的作用.結(jié)果表明:HCPA-UF-MBR工藝對(duì)色度、COD_(Mn)、TOC、NH_4~+-N、濁度等的去除效果優(yōu)于UF-MBR工藝的1.02~3.9倍,HCPA-UF-MBR中TMP始終大于UF-MBR.投加HCPA后,UF-MBR內(nèi)污泥絮體平均粒徑變小、趨于均勻,易使膜通量降低,HCPA通過吸附、生物載體降解有機(jī)物與降低污泥混合液粘度作用控制膜污染,使系統(tǒng)除污效能未降返增;污泥混合液的|Zeta|電位降低11%~26%,利于污泥沉降;系統(tǒng)對(duì)UF膜難以截留的3~10kD小分子有機(jī)物的去除效能增強(qiáng),污泥混合液與相應(yīng)膜表面濾餅層中有機(jī)物種類與含量明顯減少,系統(tǒng)對(duì)蛋白質(zhì)類、溶解性微生物代謝產(chǎn)物去除效果顯著.膜表面主要污染物為無機(jī)物Ca、Fe、Mg、Mn、Si與有機(jī)物,同樣運(yùn)行條件下膜HCPA-UF-MBR的污染程度比膜UF-MBR輕,污染物少;污染膜HCPA-UF-MBR表面的有機(jī)物易被水清洗但效果甚微,堿清洗膜效果最佳;該研究為凹凸棒土在MBR中的應(yīng)用提供技術(shù)支撐.
[Abstract]:The high concentration purification attapulgite ultrafiltration membrane bioreactor (HCPA-UF-MBR) was used to treat low temperature, high color and high ammonia nitrogen source water. The effects of HCPA on the decontamination efficiency and membrane fouling control of UF-MBR system were investigated. The relative molecular mass distribution of organic compounds, Fourier transform infrared spectroscopy (FTIR) and three dimensional fluorescence spectroscopy (FT-FRS) were used to investigate the changes of the properties of sludge mixture in UF-MBR after adding HCPA, and to study the microcosmic features of the membrane before and after cleaning, and the composition of the eluent. The effect of HCPA on reducing membrane fouling was clarified. The results showed that the removal effect of HCPA-UF-MBR process on chrominance of CODMA-UF-MBR was better than that of HCPA-UF-MBR in HCPA-UF-MBR. The average particle size of flocs in UF-MBR was smaller than that of UF-MBR, and the average particle size of flocs in UF-MBR was smaller than that of UF-MBR, and the average particle size of flocs in UF-MBR was more uniform than that in HCPA-UF-MBR. It is easy to reduce the membrane flux by adsorption, to control membrane fouling by biocarrier degradation of organic matter and to reduce the viscosity of sludge mixture, so that the efficiency of system decontamination is not reduced, and the Zeta potential of sludge mixture is decreased by 11% and 26%, which is beneficial to sludge settlement. The removal efficiency of 3~10kD small molecule organic matter which is difficult to be cut off by UF membrane was enhanced, the kinds and contents of organic matter in sludge mixture and the filter cake layer on the surface of the corresponding membrane were obviously reduced, and the protein was also removed by the system. The main pollutants on the surface of the membrane are inorganic CaOFE-MgMn-Mn-Si and organic matter. Under the same operating conditions, the pollution degree of membrane HCPA-UF-MBR is lighter than that of membrane UF-MBR, and the pollutant is less. The organic matter on the surface of contaminated HCPA-UF-MBR is easy to be washed by water but has little effect, and the effect of alkali cleaning is the best. This study provides technical support for the application of attapulgite in MBR.
【作者單位】： 東北農(nóng)業(yè)大學(xué)水利與土木工程學(xué)院;東北農(nóng)業(yè)大學(xué)資源與環(huán)境學(xué)院;
【基金】：黑龍江省博士后科學(xué)基金資助項(xiàng)目(LBH-Z13025)
【分類號(hào)】：TU991.2;X703

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張秀霞;張劍杰;單寶來;;耐鹽活性污泥馴化及其動(dòng)力學(xué)實(shí)驗(yàn)研究[J];環(huán)境工程學(xué)報(bào);2011年10期

2 張本秀;;測(cè)定污泥需氧量和活性的方法[J];石油化工環(huán)境保護(hù);1991年02期

3 丁紹蘭;王睿;那成媛;;生物法和化學(xué)法回收制革污泥中鉻的對(duì)比研究[J];環(huán)境污染與防治;2007年05期

4 陳敏;活性污泥馴化技術(shù)與高濃度CTMP廢水生物處理的研究[J];環(huán)境科學(xué);1996年06期

5 都雅麗;丁紹蘭;;制革污泥生物瀝濾中的污泥馴化的研究[J];中國(guó)皮革;2006年07期

6 李玲玲;鄭西來;李梅;;鹽度對(duì)活性污泥馴化前后生物活性的影響[J];城市環(huán)境與城市生態(tài);2007年06期

7 齊帥;王玉軍;徐徐;;污泥中重金屬處理技術(shù)的研究現(xiàn)狀及發(fā)展趨勢(shì)[J];環(huán)境科學(xué)與管理;2010年11期

8 劉榮;;A/O工藝的啟動(dòng)研究[J];北方環(huán)境;2011年11期

9 丁紹蘭;李玲;都雅麗;;生物法回收制革污泥中鉻時(shí)硫桿菌活性的研究[J];中國(guó)皮革;2009年01期

10 丁紹蘭;王景;;提高生物法分離制革污泥中鉻分離效率的研究[J];環(huán)境工程學(xué)報(bào);2009年11期

相關(guān)會(huì)議論文 前1條

1 劉曉燁;莊蓓嵐;宋倩雯;楊睿;韓偉;李永峰;;厭氧發(fā)酵產(chǎn)氫污泥的馴化技術(shù)[A];中國(guó)化工學(xué)會(huì)2009年年會(huì)暨第三屆全國(guó)石油和化工行業(yè)節(jié)能節(jié)水減排技術(shù)論壇會(huì)議論文集（上）[C];2009年

相關(guān)博士學(xué)位論文 前3條

1 李剛;環(huán)境溫度下厭氧折流板反應(yīng)器運(yùn)行特性的研究[D];西南交通大學(xué);2002年

2 丁原紅;MBR在處理外源性有機(jī)物與氨氮廢水中硝化污泥的馴化特性研究[D];廈門大學(xué);2003年

3 張斌;MBR和GSBR中微生物群落生態(tài)學(xué)研究[D];天津大學(xué);2010年

相關(guān)碩士學(xué)位論文 前10條

1 胡e，

本文編號(hào)：1656248