Inadequate chlorine residual in drinking water distribution systems increases potential for the breakthrough of organisms and can ultimately result in serious public health and regulatory compliance problems. But chlorine residuals which are too high can potentially lead to increased THMs, lead and copper levels in the water, plus bring odor and taste complaints. Because flow and chlorine demand are constantly changing it is impractical to employ either fixed-rate or flow proportioned feed as a dosing control strategy. Through redox control of the rechlorination process, adequate chlorine residual can be maintained in areas experiencing residual deficiency. Because redox is the direct measurement of chlorine work value, it can be effectively utilized to feed the required amount of chlorine necessary to meet ever-changing oxidant demand in the system without overfeed. Since most rechlorination sites are remotely located, the ability to operate unattended for extended periods makes redox control particularly well suited to the application.
| File Size : | 1
file |
| ISBN(s) : | 0898677246 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 9 |
| Published : | 01/01/1993 |
