In this plant, recycled permeate is pumped from a permeate system pressure of 20 psig up to a typical feed pump suction pressure of 30- 40 psig by a simple eductor driven by a side-stream taken from the feed pump discharge. Thus, the feed pump supplies the pumping energy although a small motor-driven pump could be used instead. At startup, the plant achieved an overall iron rejection of about 90% at a feed pH of 5.7 and 80% overall product recovery. Based on pilot test results and other experience with the NF70 membrane, overall iron rejection is expected to increase to about 92% during the first few months of operation.
| File Size : | 1
file |
| ISBN(s) : | 0898675758 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 9 |
| Published : | 01/01/1991 |
