CAJ | 학술논문

以南京地区某城镇污水处理厂剩余污泥为处理对象，利用8种不同阳离子度的有机高分子絮凝剂进行污泥调理，分析比较絮凝处理后的污泥脱水性能，筛选出最佳絮凝剂并优化投加条件。试验结果表明：不同有机高分子絮凝剂对污泥脱水性能有明显改善作用，证实絮凝剂G2用来改善污泥脱水性能是可行的。原污泥经絮凝剂G2调理，最佳投加量20 mg/L时，5 min内基本完成污泥沉降，其污泥过滤时间30 s，含水率由98.58%降至71.88%。
이남경지구모성진오수처리엄잉여오니위처리대상，이용8충불동양리자도적유궤고분자서응제진행오니조리，분석비교서응처리후적오니탈수성능，사선출최가서응제병우화투가조건。시험결과표명：불동유궤고분자서응제대오니탈수성능유명현개선작용，증실서응제G2용래개선오니탈수성능시가행적。원오니경서응제G2조리，최가투가량20 mg/L시，5 min내기본완성오니침강，기오니과려시간30 s，함수솔유98.58%강지71.88%。
Several organic polymer flocculants with different cationic degree were used in sludge con-ditioning to investigate their dewaterability performance for the waste sludge from wastewater treat-ment plant( WWTP)of Nanjing area. The key parameters influencing the dewaterability of the waste sludge conditioned,including the water content,sludge sedimentation and filtration time,were sys-tematically evaluated. According to the dewatering performance of sludge by flocculation treatment, the suitable flocculant was determined. The optimized utilization of organic polymer flocculant was discussed. The experimental results showed that the dewatering performance of waste sludge was im-proved significantly by the organic polymer floccutants. The flocculant G2 was testified to be feasible in improving the dewaterability of the waste sludge. The optimized conditioning process was that a-bout 20 mg/L G2 were added into the sludge ,and then the sedimentation was nearly finished within 5 min,the filtration time of sludge was about 30 s,the sludge water content can be reduced from 98. 58% to 71 . 88%.