Bench- and pilot-scale tests confirmed the effectiveness of the natural polyelectrolytes, chitosan and sodium alginate, in water treatment.
| Title | Effectiveness of natural polyelectrolytes in water treatment |
| Publication Type | Journal Article |
| Year of Publication | 1991 |
| Authors | Kawamura, S |
| Pagination | p. 88-91: 5 fig., 2 tab. |
| Date Published | 1991-01-01 |
| Keywords | coagulant aids, coagulation/flocculation, direct filtration, health aspects, laboratory testing, pilot plants, polyelectrolytes, sodium alginate |
| Abstract | Bench- and pilot-scale tests confirmed the effectiveness of the natural polyelectrolytes, chitosan and sodium alginate, in water treatment. Chitosan performed better than synthetic polyelectrolytes, both as a coagulant aid, and as a filtration aid during direct filtration. At present, however, chitosan is more expensive than the synthetic counterpart. Sodium alginate was an effective flocculant used with alum as a primary coagulant. Natural polymers have the additional advantage of being biodegradable and non-toxic and they also produce less sludge than alum flocculation. |
| Notes | 19 ref. |
| Custom 1 | 253, 255.5 |
