This paper presents results from a series of innovative tests utilizing bipolar membrane
Electrodialysis (BMED) and Electrochlorination (EC) technologies to produce useful
products from RO concentrate that can be utilized at the treatment facility instead of
having to dispose of the waste brine into the environment. Experiments were conducted
on RO concentrate obtained from a pilot-scale integrated membrane system (IMS)
treating wastewater. BMED was used for generating mixed acids and bases from the RO
concentrate solution after suitable softening pretreatment. Reasonably high
concentrations of acids and bases (0.2- 0.5 M) were produced and were shown to be
dependent on the concentration and the volume of the used salt solution. Additionally,
the RO concentrate was desalted as well. Electrochlorination using RO concentrate was
utilized to convert this waste stream into hypochlorite disinfectant of 0.6% similar to that
currently being utilized at water treatment plants. Includes 6 references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 590 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 8 |
| Published : | 03/01/2007 |
