If a freshwater fish pond has quite high level of salinity then culturing fishes in such a pond becomes nuisance. Therefore, the main question is how to get rid of such salinity?
Hello. What is the size of the pond? The easy solution is a dilution of pond water using distilled water or similar. Are the fishes living now in the pond? If so be careful with the salinity change. The electric conductivity of water is the best indicator of salinity. You can use this parameter during the dilution of the pond water.
Regards.
Rakesh Prasad Bhagat
Installing a desalination plant should see your worries eliminate completely as it is very effective in converting saline water to potable one through ultrafiltration but the operational cost and the conditioning of the deionized water to be rendered healthy for the fishes cultured prior to the addition to the pond may nullify the attempt greatly. A commercial RO plant also very effective but the salt free product needs to be optimized for the fishes to remain healthy, hence similar to the former. Deionization through the use of resins is another good way out of your problem but the chemicals used in that are at times quite hazardous and may undermine the health of the cultured products as well as the consumers. The simplest way is to opt for gravimetric distillation but the output will be very low and may not be adequate enough to be applicable if large volume of water is dealt with since then it will not be cost effective anymore. The ultimate choice is upon you.
Thanking you,
Sincerely
Dr. Abhishek Mukherjee
Article Diluting a salty soup: Impact of long-lasting salt pollution...
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