SUN Jun-bo,ZHU Jian-wen,HU Hui-ning,et al.Flocculation Effect of Cationic Polyacrylamide on Mud-water Mixture in River[J].China Water & Wastewater,2021,37(11 11):84-88.
Flocculation Effect of Cationic Polyacrylamide on Mud-water Mixture in River
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
11 11
Page:
84-88
Column:
Date of publication:
2021-06-01
- Keywords:
- river dredging; cationic polyacrylamide; flocculation; mud-water mixture; turbidity; COD
- Abstract:
- River silt makes the water black and smelly, which seriously affects the water environmental quality. In recent years, dredging boat has been preliminarily applied in river dredging.It absorbs the mud-water mixture at the bottom of the river and then adds flocculants to accelerate the separation of mud and water, so as to achieve dredging of the rivers.However, the effect of flocculant dosage on flocculation performance has not been systematically investigated, which seriously affects the design of dredging boat. Therefore, effects of dosage of cationic polyacrylamide (CPAM) on separation of mud-water mixture and quality of the effluent after separation were explored through flocculation experiments. When the dosage of CPAM reached 0.79 mg/g, obvious mud-water separation performance was achieved, and turbidity and COD in the effluent were significantly reduced.
Last Update:
2021-06-01