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浙江大学学报(工学版)
土木工程     
不同pH下表面活性剂对污泥脱水性能的影响
洪晨,邢奕,王志强,司艳晓,周亮
北京科技大学 土木与环境工程学院,北京 100083
Influence of surfactant conditioning on sludge dewaterability in various pH value
HONG Chen, XING Yi, WANG Zhi-qiang, SI Yan-xiao, ZHOU Liang
School of Civil and Environmental Engineering,University of science and Technology Beijing,Beijing 100083, China
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摘要:

为了提高污泥脱水效果,对酸碱联合表面活性剂调理下污泥脱水性能的变化进行研究.利用表面活性剂十二烷基二甲基苄基氯化铵调理污泥,探讨表面活性剂投加量、pH值对污泥滤饼含水率(w(H2O)) 和比阻(r SRF)的影响.通过分析污泥中胞外聚合物(EPS)、上清液有机酸、流变性的变化,阐明不同pH下表面活性剂对污泥脱水性能的影响机理.结果表明,表面活性剂的加入导致污泥上清液中EPS质量浓度ρ(EPS)发生变化,促进EPS水解,有效降低污泥表观黏度,提高污泥脱水性能.在强碱性条件下,污泥上清液中ρ(EPS)大幅增加引起r SRF快速升高,w(H2O)增大,表观黏度增大,污泥脱水性能恶化;酸性条件下表面活性剂的作用效果较好,污泥滤饼含水率(w(H2O))明显降低.当pH值为3、表面活性剂投加量(w(表面活性剂))为93.75 mg·g-1时,w(H2O)和r SRF可分别降至61.12%、0.59×1013 m·kg-1.

Abstract:

To improve the sludge dewaterability, the potential benefits of  sludge dewaterability under surfactant-conditioning with acid-alkali pretreatment were investigated. Sludge was treated by surfactant dodecyl dimethyl benzyl ammonium chloride, and then the effect of surfactant dosage and pH on sludge dewaterability [water content of dewatered sludge (w(H2O)) and specific resistance of filtration (r SRF)] were discussed. Extracellular polymeric substance (EPS) content, organic acid content and rheological property were measured in an attempt to explain the sludge dewaterability mechanism under surfactant conditioning in various pH. The results show that the surfactant has positive effect on the sludge dewaterability. The addition of surfactant can change EPS content ρ(EPS), promote EPS hydrolysis, reduce the apparent viscosity and then improve sludge dewaterability. When sludge is conditioned by surfactant with alkaline pretraetment, ρ(EPS) in supernatant increase dramatically which result in rSRF, w(H2O) and rheological property increasing significantly, and then sludge dewaterability deteriorated. As a comparison, the effects of surfactant conditioning sludge with acid pretreatment are better, w(H2O) decrease obviously. The results also demonstrate that a surfactant dosage of 93.75 mg·g-1 at pH= 3 is an ideal condition, w(H2O) and r SRF decrease to 61.12% and 0.59×1013 m·kg-1, respectively.

出版日期: 2014-11-26
:  X 705  
基金资助:

国家自然科学基金资助项目 (51104009);北京市科技新星计划项目(Z111106054511043);北京市优秀人才培养资助项目(2012D009006000003);中央高校基本科研业务费专项资金资助项目 (FRF-TP-12-011 B);昆明市科技计划资助项目 (2012-02-09-A-G-02-0001);广东省教育部产学研结合资助项目 (2011B090400629).

通讯作者: 邢奕,男,副教授.     E-mail: xingyi@ustb.edu.cn
作者简介: 洪晨 (1984- ),男,博士生,从事市政污泥处理与资源化方面的研究. E-mail: hongchen000@126.com
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引用本文:

洪晨,邢奕,王志强,司艳晓,周亮. 不同pH下表面活性剂对污泥脱水性能的影响[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.05.014.

HONG Chen, XING Yi, WANG Zhi-qiang, SI Yan-xiao, ZHOU Liang. Influence of surfactant conditioning on sludge dewaterability in various pH value. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.05.014.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.05.014        http://www.zjujournals.com/eng/CN/Y2014/V48/I5/850

[1] NEYENS E, BAEYENS J, DEWIL R. Advanced sludge treatment affects extracellular polymeric substances to improve activated sludge dewatering [J]. Journal of Hazardous Materials, 2004, 106(2): 8392.
[2] FENG X, DENG J, LEI H, et al. Dewaterability of waste activated sludge with ultrasound conditioning  [J]. Bioresource Technology, 2009, 100(3): 10741081.
[3] ZHANG D, CHEN Y, ZHAO Y, et al. New sludge pretreatment method to improve methane production in waste activated sludge digestion  [J]. Environmental Science & Technology, 2010, 44(12): 48024808.
[4] YUAN H, CHENG X, CHEN S, et al. New sludge pretreatment method to improve dewaterability of waste activated sludge  [J]. Bioresource Technology, 2011, 102(10): 56595664.
[5] TOKUMURSA M, SEKINE M, YOSHINARI M, et al. Photo-Fenton process for excess sludge disintegration  [J]. Process Biochemistry, 2007, 42(4): 627633.
[6] ZHAO Y Q, BACHE D H. Conditioning of alum sludge with polymer and gypsum  [J]. Colloids and Surfaces, 2001, 194(1): 213220.
[7] MA W, ZHAO Y Q, KEARNEY P. A study of dual polymer conditioning of aluminum-based drinking water treatment residual  [J]. Journal of Environmental Science and Health, 2007, 42(7): 961968.
[8] NEYENS E, BAEYENS J. A review of classic Fentons peroxidation as an advanced oxidation technique  [J]. Journal of Hazardous Materials, 2003, 98(1): 3350.
[9] BOLTO B, GREGORY J. Organic polyelectrolytes in water treatment [J]. Water Research, 2007, 41(11): 23012324.
[10] CHEN Y, YANG H, GU G. Effect of acid and surfactant treatment on activated sludge dewatering and settling  [J]. Water Research, 2001, 35(11): 26152620.
[11] CHEN Y, CHEN Y, GU G. Influence of pretreating activated sludge with acid and surfactant prior to conventional conditioning on filtration dewatering  [J]. Chemical Engineering Journal, 2004, 99(2): 137143.
[12] YUAN H, ZHU N, SONG F. Dewaterability characteristics of sludge conditioned with surfactants pretreatment by electrolysis [J]. Bioresource Technology, 2011, 102(3): 23082315.
[13] 陈银广,杨海真,吴桂标,等. 表面活性剂改进活性污泥的脱水性能及其作用机理 [J]. 环境科学,2000, 21(5): 97100.
CHEN Yin-guang, YANG Zhen-mei, WU Gui-biao, et al. Surfactant improving activated sludge dewaterability and its mechanism [J]. Chinese Journal of Environmental Science, 2000, 21(5): 97100.
[14] 袁园,杨海真. 表面活性剂及酸处理对污泥脱水性能影响的研究 [J]. 四川环境,2003, 22(5): 18.
YUAN Yuan, YANG Hai-zhen. Study on effect of surfactant and acid treatment on sludge dewaterability [J]. Sichuan Environment. 2003, 22(5): 18.
[15] 鹿雯,张登峰,胡开林,等. 阳离子表面活性剂对污泥脱水性能的影响和作用机理 [J]. 环境化学,2008, 27(4): 444448.
LU WEN, ZHANG Deng-feng, HU Kai-lin, et al. Effect and mechanism of cationic surfactant on sludge dewaterability [J]. Environment Chemistry, 2008, 27(4): 444448.
[16] YU G, HE P, SHAO L, et al. Stratification structure of sludge flocs with implications to dewaterability [J]. Environmental Science & Technology, 2008, 42(21): 79447949.
[17] 张兰河,李军,郭静波. EPS对活性污泥絮凝沉降性能与表面性质的影响 [J]. 化工学报,2012, 63(6): 18651871.
ZHANG Lan-he, LI Jun, GUO Jing-bo. Effect of EPS on flocculation-sedimentation and surface properties of activated sludge [J]. Journal of Chemical Industry and Engineering, 2012, 63(6): 18651871.
[18] HOUGHTON J I, QUARMBY J, STEPHENSON T. Municipal wastewater sludge dewaterability and the presence of microbial extracellular polymer [J]. Water Science and Technology, 2001, 44(2/3): 373379.
[19] 邢奕,洪晨,赵凡,脱硫灰调理对污泥脱水性能的影响 [J]. 化工学报,2013, 64(5): 18101818.
XING Yi, HONG Chen, ZHAO fan. Dewatering performance of sludge modified by desulfurization ash [J]. Journal of Chemical Industry and Engineering, 2013, 64(5): 18101818.
[20] NOVAK J T, SADLER M E, MURTHY S N. Mechanisms of floc destruction during anaerobic and aerobic digestion and the effect on conditioning and dewatering of biosolids [J]. Water Research, 2003, 37(13): 31363144.
[21] ROSENBERGER S, EVENBLIJ H, TE POELE S, et al. The importance of liquid phase analyses to understand fouling in membrane assisted activated sludge processes—six case studies of different European research groups  [J]. Journal of Membrane Science, 2005, 263(1): 113126.
[22] LOWRY O H, ROSEBROUGH N J, FARR A L, et al. Protein measurement with the Folin phenol reagent  [J]. Journal of Biological Chemistry, 1951, 193(1): 265275.
[23] RIESZ P, BERDAHL D, CHEISTMAN C L. Free radical generation by ultrasound in aqueous and nonaqueous solutions [J]. Environmental Health Perspectives, 1985, 64: 233252.
[24] 辛梅华,李明春,徐金瑞. 反相高效液相色谱法测定酸雨中的甲酸、乙酸、丙酸等 [J]. 环境工程,2003, 21(1): 5759.
XIN Mei-hua, LI Ming-chun, XU Jin-rui. Determination of formic acid, acetic acid, propionic acid and succinic acid in acid rain with revered-phase HPLC [J]. Environmental Engineering, 2003, 21(1): 5759.
[25] 李恺,叶志平,李焕文,等. 表面活性剂CTAC对活性污泥的脱水性能及其机理研究 [J]. 华南师范大学学报:自然科学版,2010, (2): 7681.
LI Kai, YE Zhi-ping, LI Huan-wen, et al. Study of surfactants CTAC on activated sludges dewaterability and mechanism [J]. Journal of South China Normal University :Natural Science Edition, 2010, (2): 7681.
[26] WU Dan, XU Guiying. Study on protein-surfactant interaction by spectroscopic methods [J]. Acta Physico-Chimica Sinca, 2006, 22(2): 254260.
[27] JI Yun, ZHANG Xiaohong, GUO Rong. Interaction between gelatin and cationic surfactant CTAB [J]. Acta Chimica Sinca, 2004, 62(4): 345350.
[28] JIN B, WILEN B, LANT P. Impacts of morphological, physical and chemical properties of sludge flocs on dewaterability of activated sludge [J]. Chemical Engineering Journal, 2004, 98(1): 115126.
[29] 甄广印,周海燕,宋玉. 十二烷基苯磺酸钠(SDBS)-氢氧化钠耦合污泥脱水技术研究 [J]. 环境化学,2010, 29(6): 11061110.
ZHEN Guang-yin, ZHOU Hai-yan, SONG Yu. Influence of combination sodium dodecyl benzebne sulfonate(SDBS) and akaline pretreatment on sludge dewaterability [J]. Environment Chemistry, 2010, 29(6): 11061110.
[30] 胡梦瑶,彭毛,吴辉. 荧光法研究表面活性剂CTAB与蛋白质的相互作用[J]. 胶体与聚合物,2009, 27(3): 3336, 44.
HU Meng-yao, PENG Mao, WU Hui. Spectroscopic investigation of the interaction between CTAB and protein [J]. Chinese Journal of Colloid and Polymer,2009, 27(3): 3336, 44.
[31] FORSTER C F. Factors involved in the settlement of activated sludge-I: Nutrients and surface polymers [J]. Water research, 1985, 19(10): 12591264.
[32] WATSON J D. Molecular biology of the gene[M]. Benjamin:Cummings Publishing Company, 1987.
[33] 何玉凤,杨凤林,胡绍伟. 碱处理促进剩余污泥高温水解的试验研究[J]. 环境科学,2008, 29(8): 22602265.
HE Yu-feng, YANG Feng-lin, HU Shao-wei. Promoting high-temperature hydrolysis under alkaline condition[J]. Chinese Journal of Environmental Science. 2008, 29(8): 22602265.
[34] ROSENBERGER S, KRAUME M. Filterability of activated sludge in membrane bioreactors [J]. Desalination, 2002, 146(1): 373379.
[35] WILEN B, JIN B, LANT P. Impacts of structural characteristics on activated sludge floc stability [J]. Water Research, 2003, 37(15): 36323645.

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