Treatment Alternatives for High TDS / Salinity Brine
Treatment Alternatives for High TDS / Salinity Brine
(OP)
Hello everyone,
I am looking for technologies for treatment of groundwater with the following characteristics:
pH = 7.0 to 7.8
TDS = 40,000 to 70,000 mg/L
Sulfate = 25,000 to 35,000 mg/L
Sodium = 15,000 to 35,000 mg/L
These are the main constituents of the groundwater and also the main parameters I am looking to remove from water. This is not for a drinking water application. Water is low in organics, suspended solids, and iron.
I know that reverse osmosis is most promising for the water quality described. I also know that electrodialysis might work - but has better efficiency at TDS < 5,000 mg/L. I know that ion exchange will not work here due to the high salinity.
Any other things that come to mind? From obvious high-salinity treatment processes that I missed, to new, experimental (even laboratory-scale) processes that you know about? Anything will help. Thank you!
-Al
I am looking for technologies for treatment of groundwater with the following characteristics:
pH = 7.0 to 7.8
TDS = 40,000 to 70,000 mg/L
Sulfate = 25,000 to 35,000 mg/L
Sodium = 15,000 to 35,000 mg/L
These are the main constituents of the groundwater and also the main parameters I am looking to remove from water. This is not for a drinking water application. Water is low in organics, suspended solids, and iron.
I know that reverse osmosis is most promising for the water quality described. I also know that electrodialysis might work - but has better efficiency at TDS < 5,000 mg/L. I know that ion exchange will not work here due to the high salinity.
Any other things that come to mind? From obvious high-salinity treatment processes that I missed, to new, experimental (even laboratory-scale) processes that you know about? Anything will help. Thank you!
-Al





RE: Treatment Alternatives for High TDS / Salinity Brine
RO and electrodialysis technologies will both concentrate the salts within a brine stream. What do you plan to do with the brine stream after the treatment?
An evaporator (brine concentrator and salt crystalizer) will produce two streams, one of pure water and the other a dry salt.
RE: Treatment Alternatives for High TDS / Salinity Brine
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RE: Treatment Alternatives for High TDS / Salinity Brine
RE: Treatment Alternatives for High TDS / Salinity Brine
-Al