| Title |
Reduction of Float in water treatment plant by coagulants and coagulant - aid |
| Authors |
이은주(Eun Ju Lee),정팔진(Paul Gene Chung),곽동희(Dong Heui Kwak) |
| Abstract |
Massive amount of float are produced at water treatment plants adopting conventional gravity sedimentation. Not only does the float give bad aesthetic impression to public but also do sometimes serious operational problems occur in water treatment process. In this study, sodium alginate (Sa), a coagulant-aid which may increase specific gravity of flocs, was added to the conventional coagulation/flocculation using common coagulants, alum, PAC or PACS. The results revealed that the amount of float was reduced by 20%, 19.5%, and 77.5% (dry weight basis) for alum, PAC, PACS, respectively. |