The effects of low-temperature conditions on the use of alum and ferric chloride for the removal of turbidity were studied. Experimental work involved the use of these coagulants for the removal of kaolin from water samples under both extreme-low-temperature and roomtemperature conditions. Analysis of data from a full-scale treatment plant that experienced failure at low temperature was also included. Temperature effects on coagulation were significant, with lowtemperature conditions producing sharp decreases in turbidity removal efficiency. Alum coagulation was most severely affected. Precipitation studies showed that temperature did not significantly inhibit the rate of metal-ion precipitation. Includes 5 references, table, figures.
| Edition : | Vol. 76 - No. 3 |
| File Size : | 1
file
, 1.5 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 03/01/1984 |
