原位臭氧污泥减量试验研究

韦海浪

原位臭氧污泥减量试验研究

韦海浪

1.
西北工业大学, 西安 710072

详细信息

作者简介:
韦海浪(1971-)，工程师，硕士，研究方向为环境工程，541157001@qq.com

计量
- 文章访问数: 124
- HTML全文浏览量: 13
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2012-05-02
- 刊出日期: 2015-06-10

Test Study on Simultaneous Ozonation Sludge Reduction

Wei Hai-lang

1.
Northwestern Polytechnical University, Xi'an 710072

摘要

摘要: 通过模拟某污水处理站的序批式活性污泥法(SBR)工艺运行条件,对其污泥混合液参数的变化规律进行了试验研究。结果表明:随着原位臭氧投加量的不断增加,SBR的混合液悬浮固体浓度(MLSS)和混合液挥发性悬浮固体浓度(MLVSS)呈下降趋势,污泥活性明显降低;臭氧氧化作用对污泥微生物细胞的破解可以引起污泥混合液中溶解性化学需氧量(SCOD)、总有机碳(TOC)、总氮(TN)和总磷(TP)浓度的升高,其最高值分别可达到1 366.5 mg/L、420.50 mg/L、31.89 mg/L和19.54 mg/L。污泥混合液中的氨氮(NH4+-N)浓度和pH值均呈下降的趋势,硝酸盐氮(NO3--N)浓度和亚硝酸盐氮(NO2--N)浓度表现为增加的规律,但NO2--N浓度随着臭氧量的继续投加呈现出下降的趋势。
- 污泥减量 /
- 原位 /
- 臭氧投加
Abstract: The influence of the variation of parameters in sludge mixed liquor was studied through simulating the running condition of the SBR( sequencing batch reactor activated sludge process) in the sewage treatment plant in this paper. The test result indicated as follows: with the increase of ozone dosage,MLSS( mixed liquid suspended solids) and MLVSS( mixed liquor volatile suspended solids) of SBR always tend to decrease,and the activity of sludge was reduced significantly. Ozone oxidation could break the sludge microbial cells,which could increase the concentration of SCOD( soluble chemical oxygen demand),TOC( total organic carbon),TN( total nitrogen) and TP( total phosphorus) in the mixed liquor,whose maximum values could reach 1 366. 5 mg/L,420. 50 mg/L,31. 89 mg/L and 19. 54 mg/L,respectively. NH4+-N content and pH of the sludge mixed liquor also decreased.Both NO2--N content and NO-3-N content increased in the same way at first,but NO2--N content showed a downward trend with the constant increase of ozone dosage.
- experiments /
- microbial fuel cells /
- nitrogen

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参考文献(13)

[1]	Wei Y,Van Houten R T,Borger A R. Minimization of excess sludge production for biological wastewater treatment[J].Water Research,2003,(18):4453-4467.
[2]	Bougrier C,Albasi C,Delgene's J P. Influence of ultrasonic,thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradeability[J].Chemical Engineering Progress,2006,(08):711-718.
[3]	Chiavola A,Naso M,Rolle E. Influence of ozonation on sludge reduction in a SBR plant[J].Water Science and Technology,2007,(09):157-165.
[4]	Kamiya T,Hirotsuji J. New combined system of biological process and intermittent ozonation for advanced wastewater treatment[J].Water Science and Technology,1998,(8/9):145-153.
[5]	Yan S T,Chu L B,Xing X H. Analysis of the mechanism of sludge ozonation by a combination of biological and chemical approaches[J].Water Research,2009,(01):195-203.
[6]	Song K G,Choung Y K,Ahn K H. Performance of membrane bioreactor system with sludge ozonation process for minimization of excess sludge production[J].DESALINATION,2003,(1/3):353-359.
[7]	Yasui H,Miyaji Y. A novel approach to removing refractory organic compounds in drinking water[J].Water Science and Technology,1992,(7/8):1503-1512.
[8]	Dziurla M A,Salhi M,Leroy P. Variations of respiratory activity and glutathione in activated sludges exposed to low ozone doses[J].Water Research,2005,(12):2591-2598.
[9]	周健,程吉建,龙腾锐. 采用脱氢酶进行AB工艺A段细菌增殖及污泥产生规律的研究[J].给水排水,2004,(08):45-49.
[10]	ChuLB,YanST,XingXH. Enhanced sludge solubilization by microbubble ozonation[J].CHEMOSPHERE,2008,(02):205-212.
[11]	Zhang G,Yang J,Liu H. Sludge ozonation:disintegration,supematant changes and mechanisms[J].BIORESOURCE TECHNOLOGY,2009,(03):1505-1509.
[12]	Chu L B,Wang J,Wang B. Changes in biomass activity and characteristics of activated sludge exposed to low ozone dose[J].CHEMOSPHERE,2009,(02):269-272.
[13]	顾夏声,胡洪营,文湘华. 水处理生物学(第四版)[M].北京:中国建筑工业出版社,2006.