This project will evaluate a demonstration-scale, two-stage reverse osmosis (RO) process for
achieving high recovery (95%) for membrane desalination of Colorado River water. The two-stage
process involves recovering the concentrate stream from a primary RO process by
chemical precipitation followed by further recovery of low-total dissolved solids product water
in a smaller, secondary RO. The principal research focus is to evaluate physical/chemical
treatment strategies for removing scale-forming ions, which limit recovery in RO processes,
using an intermediate chemical demineralization (ICD) process. An earlier pilot-scale ICD unit
followed by a secondary RO desalting provided an overall total product water recovery plant of
93.5%. Solubility modeling results indicated that operation at recoveries in excess of 95% would
be feasible. Includes 21 references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 580 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 03/01/2007 |
