阳离子表面活性剂CTMAB对污泥脱水的影响研究
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摘要
考察了阳离子表面活性剂十六烷基三甲基溴化铵(CTMAB)浓度、添加量、调理时间和温度对活性污泥脱水和沉降性能的影响。结果表明,使用1 m L浓度1%的CTMAB调理污泥效果最佳,重力沉降的滤液体积最大。在最佳用量下,搅拌2 h,搅拌温度60℃时污泥的脱水性能最好,毛细吸水时间为8. 7 s,泥饼含水率下降了25%。通过SEM观察了原污泥和CTMAB调理后的污泥微观形态。
The effects of a cationic surfactant( CTMAB) concentration,dosage,conditioning time and temperature on the dewaterability and settling performance of activated sludge were studied. Results indicate that the moisture content of CTMAB was the best with 1 m L concentration of 1% CTMAB,and the volume of the filtrate obtained by the gravity settlement experiment was also the largest. Under the optimal dosage was 2 h and 60 ℃,in which capillary suction time is 8. 7 s,cake moisture content is decreased by 25%.The micromorphological changes of the original and conditioned sludge were observed by SEM.
The effects of a cationic surfactant( CTMAB) concentration,dosage,conditioning time and temperature on the dewaterability and settling performance of activated sludge were studied. Results indicate that the moisture content of CTMAB was the best with 1 m L concentration of 1% CTMAB,and the volume of the filtrate obtained by the gravity settlement experiment was also the largest. Under the optimal dosage was 2 h and 60 ℃,in which capillary suction time is 8. 7 s,cake moisture content is decreased by 25%.The micromorphological changes of the original and conditioned sludge were observed by SEM.
引文
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[7]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):76-81.
[8]李雪,李飞,曾光明,等.表面活性剂对污泥脱水性能的影响及其作用机理[J].环境工程学报,2016,10(5):2221-2226.
[9]黄显浪.阳离子表面活性剂与沸石对城市污泥的调理及机理研究[D].长沙:湖南大学,2015.
[10]郭敏辉.化学调理改善活性污泥脱水性能的研究[D].杭州:浙江大学,2014.
[11]牛美青,张伟军,王东升,等.不同混凝剂对污泥脱水性能的影响研究[J].环境科学学报,2012,32(9):2126-2133.
[12]蒋波.阳离子型表面活性剂对活性污泥脱水性能的影响及作用机理研究[D].上海:上海交通大学,2007.
[13]李欣.阳离子调理剂与阳离子聚电解质联合作用于活性污泥脱水及其机理研究[D].上海:上海交通大学,2009.
[14]王睿韬.市政污泥脱水效果及脱水机理的研究[D].北京:中国建筑材料科学研究总院,2013.
[15]林霞亮,周兴求,伍健东,等.无机混凝剂与壳聚糖联合调理对污泥脱水的影响[J].工业水处理,2015,35(10):38-41.
[2] Guan Renpeng,Yuan Xingzhong,Wu Zhibin,et al. Functionality of surfactants in waste-activated sludge treatment:A review[J]. Science of the Total Environment,2017,609:1433-1442.
[3] Brian B,John G. Organic polyelectrolytes in water treatment[J]. Water Res,2007,41:2301-2324.
[4] Martins R C,Lopes D V,Quina K J,et al. Treatment improvement of urban landfill leachates by Fenton-like process using ZNI[J]. Chem Eng J,2012,192:219-226.
[5] Mo R,Huang S,Dai W,et al. A rapid Fenton treatment technique for sewage sludge dewatering[J]. Chem Eng J,2015,269:391-398.
[6] Chen Hong,Wang Zhiqiang,Si Yanxiao,et al. Improving sludge dewaterability by combined conditioning with Fenton’s reagent and surfactant[J]. Applied Microbiology and Biotechnology,2016,101(2):809-816.
[7]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):76-81.
[8]李雪,李飞,曾光明,等.表面活性剂对污泥脱水性能的影响及其作用机理[J].环境工程学报,2016,10(5):2221-2226.
[9]黄显浪.阳离子表面活性剂与沸石对城市污泥的调理及机理研究[D].长沙:湖南大学,2015.
[10]郭敏辉.化学调理改善活性污泥脱水性能的研究[D].杭州:浙江大学,2014.
[11]牛美青,张伟军,王东升,等.不同混凝剂对污泥脱水性能的影响研究[J].环境科学学报,2012,32(9):2126-2133.
[12]蒋波.阳离子型表面活性剂对活性污泥脱水性能的影响及作用机理研究[D].上海:上海交通大学,2007.
[13]李欣.阳离子调理剂与阳离子聚电解质联合作用于活性污泥脱水及其机理研究[D].上海:上海交通大学,2009.
[14]王睿韬.市政污泥脱水效果及脱水机理的研究[D].北京:中国建筑材料科学研究总院,2013.
[15]林霞亮,周兴求,伍健东,等.无机混凝剂与壳聚糖联合调理对污泥脱水的影响[J].工业水处理,2015,35(10):38-41.