污泥回收系统浓缩池沉淀效果提升研究——以宁东水厂为例

Study on the Improvement of Sedimentation Effect in the Thickening Tank of Sludge Recovery System——Take Ningdong Watertreatment Plant as an Example

选取效果好的混凝剂、助凝剂可以提升污水处理厂污泥浓缩池的沉淀效果,从而提升整个污泥回收系统的工作效率。文章采用混凝烧杯实验对宁东水厂浓缩池不同浓度泥水开展药剂筛选、助凝剂及活性炭复配实验,结果显示:在所选混凝剂中壳聚糖季铵盐(Hydroxypropyltrimethyl Ammonium Chloride Chitosan,HACC)混凝效果最好,添加了活性炭后发现其不但能够有效去除沉后水泥溴味而且还能在水处理中起到一定的助凝作用。

The suitable coagulant and the coagulant aid could effectively improve the sedimentation effect of the sludge in the thickening tank in the sewage treatment plant,thus improving the efficiency of the whole sludge recovery system.In this paper,different coagulants and the activated carbon were selected in the Jar-test experiments for the different sludge concentrations in Ningdong Watertreatment plant.The results showed that the HACC(chitosan quaternary ammonium salt)appeared the best coagulation effect.After adding the activated carbon,it was found that it could not only effectively remove the bromine smell of the sludge,but also play a certain role to promote the coagulation in the Watertreatment plant.