The question is somewhat incorrect. The solution must be cleaned from which contaminants for which purpose? For example you might want to acheive drinking water from some underground natural source, river, swamp or sea. Or you need to remove some heavy metalls from industrial wastes. Or organic contaminants from meat production. All these types of cleaning require different methods.

The question is somewhat incorrect. The solution must be cleaned from which contaminants for which purpose? For example you might want to acheive drinking water from some underground natural source, river, swamp or sea. Or you need to remove some heavy metalls from industrial wastes. Or organic contaminants from meat production. All these types of cleaning require different methods.

coagulation and sand filtration

Dear Dr. Melnikov,

Thanks for your comments..... Yes you are right...

Actually I want drinking water at the time of disaster where there might be chemical as well as organic contamination.. There might be sea water as well if the area is near the sea... Hope you got my point..

Thanks a lot..

Nazmul, For emergency water treatment using a manually cleaned membrane system you should contact Rhett Butler at SkyJuice (http://skyjuice.org.au/). Rhett is an expert on membranes who has developed several different configurations of membrane units for emergency water treatment use. These would not be appropriate for desalination. A powered reverse osmosis membrane would be required for that. Regards, Randal

Dr. Sarkar,

Please do not forget to add some oxidizing or disinfecting agents such as effective and safe oxidizing agent K2FeO4.

Good luck

Maohong Fan

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