复合填料强化活性污泥沉降和脱水性能的研究  

Study on the Effect of Composite Fillers to Enhance the Settling and Dewatering Properties of Activated Sludge

作　　者：王金鑫 赵可[1] 张小雨 李春明 WANG Jin-xin;ZHAO Ke;ZHANG Xiao-yu;LI Chun-ming(Jilin Jianzhu University,Changchun Jilin 130000,China)

机构地区：[1]吉林建筑大学,吉林长春130000

出　　处：《辽宁化工》2021年第4期442-444,共3页Liaoning Chemical Industry

基　　金：吉林省省级产业创新专项资金项目(项目编号:2018c044-4)。

摘　　要：为了研究复合填料对活性污泥沉降和脱水性能的影响及影响机理,通过改变复合填料、腐殖土、复合填料释放出阳离子的投加量,考察活性污泥沉降和脱水性能的变化。以期从阳离子的角度明确复合填料对活性污泥沉降和脱水性能的影响机制。结果表明:随着复合填料投加量的增加,SVI和CST值降低,在投加量为5 g·L^(-1)时,SVI和CST分别为32.81 mL·g^(-1)、8.3 s,沉降性能和脱水性能分别提高32.2%和42%。复合填料有利于提高活性污泥沉降和脱水性能,且对活性污泥沉降和脱水性能的改善效果优于腐殖土;复合填料中释放出的二价阳离子对于污泥沉降和脱水性能起强化作用。In order to study the influence of composite fillers on the settling and dewatering properties of activated sludge and the influence mechanism, the changes of settling and dewatering properties of activated sludge were investigated by changing the dosage of cations released by composite fillers, humus soil and composite fillers.The effect mechanism of composite fillers on the settling and dewatering performance of activated sludge was investigated from the perspective of cationic. The results showed that the SVI and CST values decreased with the increase of the dosage of composite filler. When the dosage was 5 g·L^(-1), the SVI and CST values were 32.81 mL·g^(-1) and 8.3 s, the settling property and dehydration property increased by 32.2% and 42%.The composite fillers improved the settling and dewatering properties of activated sludge, and the improvement effect of the settling and dewatering properties of activated sludge was better than that of humus soil.The divalent cations released from the composite filler enhanced the sludge settling and dewatering performance.

关 键 词：沉降性 脱水性 阳离子 腐殖土 

分 类 号：X703[环境科学与工程—环境工程]