聚二甲基二烯丙基氯化铵在污泥脱水中的应用
|
摘要
研究了聚二甲基二烯丙基氯化铵、阳离子PAM、铁盐+石灰的调质方式对活性污泥的脱水性能的影响,测试了调质后污泥的毛细吸水时间CST、污泥比阻SRF、泥饼含水率。结果表明,3种调理剂都能使污泥的CST、SRF降低明显,但是只有聚二甲基二烯丙基氯化铵和铁盐+石灰调理后的污泥泥饼含水率能满足污泥深度脱水要求。聚二甲基二烯丙基氯化铵投加率为质量比为绝干泥量的3%时,能将污泥的含水率降低到深脱含水率55%～65%的要求。
The authors have studied the influence of the conditioning of activated sludge with polydimethylene diallyl ammonium chloride(PDAC), cationic polyacrylamide(CPAM), and ferrite+lime upon its dewatering ability, and tested the capillary suction time(CST), specific resistance to filtration(SRF), and sludge cake moisture of the sludge conditioned. The results indicate that all the three conditioners reduce CST and SRF in the sludge but only the moisture in the sludge conditioned with PDAC and ferrite +lime meets the requirements for deep dewatering. The PDAC dosing rate shall reduce the sludge moisture into 55%～65% of the moisture after deep dewatering when the mass ratio is 3% of the absolute dry sludge.
The authors have studied the influence of the conditioning of activated sludge with polydimethylene diallyl ammonium chloride(PDAC), cationic polyacrylamide(CPAM), and ferrite+lime upon its dewatering ability, and tested the capillary suction time(CST), specific resistance to filtration(SRF), and sludge cake moisture of the sludge conditioned. The results indicate that all the three conditioners reduce CST and SRF in the sludge but only the moisture in the sludge conditioned with PDAC and ferrite +lime meets the requirements for deep dewatering. The PDAC dosing rate shall reduce the sludge moisture into 55%～65% of the moisture after deep dewatering when the mass ratio is 3% of the absolute dry sludge.
引文
[1]林子增,黄瑛,乔红杰,等,城市污水厂污泥化学调理深度脱水技术述评[J].应用化工,2016,45(6):1159-1162.
[2]汤继军,孔维琳,黄红杉.聚二甲基二烯丙基氯化铵(HCA)对活性污泥的脱水性能研究[J].工业用水与废水,2001,32(6):27-29.
[3]刘立华,龚竹青.聚二甲基二烯丙基氯化铵-聚合硫酸铁复合絮凝剂对污泥的脱水性能[J].环境污染治理技术与设备,2006,7(7):77-82.
[4]高宝玉,岳钦艳,张海锋.PAC-PDMDAAC复合絮凝剂处理炼油厂含油废水的研究[C]//中国化工学会.2004全国水处理技术研讨会论文集,杭州:’2004全国水处理技术研讨会暨第24届年会,2004:260-265.
[5]周章华,曹艳峰,袁莉.污水处理厂污泥脱水性能指标测试分析[J].山西建筑,2013,39(22):126-127.
[6]何文远,杨海真,顾国维.酸处理对活性污泥脱水性能的影响极其作用机理[J].环境污染与防治,2006,28(9):680-682.
[7]刘力荣,罗衍强,彭丽斯,等,城市污泥深度脱水调理药剂的筛选与优化研究[J].环境工程,2014(增刊1):65-69.
[2]汤继军,孔维琳,黄红杉.聚二甲基二烯丙基氯化铵(HCA)对活性污泥的脱水性能研究[J].工业用水与废水,2001,32(6):27-29.
[3]刘立华,龚竹青.聚二甲基二烯丙基氯化铵-聚合硫酸铁复合絮凝剂对污泥的脱水性能[J].环境污染治理技术与设备,2006,7(7):77-82.
[4]高宝玉,岳钦艳,张海锋.PAC-PDMDAAC复合絮凝剂处理炼油厂含油废水的研究[C]//中国化工学会.2004全国水处理技术研讨会论文集,杭州:’2004全国水处理技术研讨会暨第24届年会,2004:260-265.
[5]周章华,曹艳峰,袁莉.污水处理厂污泥脱水性能指标测试分析[J].山西建筑,2013,39(22):126-127.
[6]何文远,杨海真,顾国维.酸处理对活性污泥脱水性能的影响极其作用机理[J].环境污染与防治,2006,28(9):680-682.
[7]刘力荣,罗衍强,彭丽斯,等,城市污泥深度脱水调理药剂的筛选与优化研究[J].环境工程,2014(增刊1):65-69.