please suggest me some sites for d topic---"use of biofiltration for drinking water in d 21st century"

Question

its a topic in chemistry

Answer 1

Hard to beat wikipedia for such a topic.

Answer 2

Some of the other answers are good.

"its a topic in chemistry"

This would be Chemical Scrubbers, and chemicals. Chlorination - fluoridation - bromination and treating with ferric oxide.........

Reverse osmosis comes to mind, it is commercially available for house hold use GE makes it.

At least one city in USA Kenosha, WI has installed stand alone reverse osmosis system. It is a good size city, near Chicago, IL (south) and Milwaukee,Wis (north). It is considered twin city with Racine, WI.

Reverse osmosis filter removes every thing up to certain micron. To increase the life of the system you need to use particulate filter, then chemical scrubber to get reed of metal and chemicals and finally reverse osmosis filter, reverse osmosis is actually is a mechanical man produced membrane.

Ferric oxide, is use to precipitate out particulate impurities and balance the PH.

EG.
St.Louis County water. org or com or gov.

Put any city's name with com, gov or org ending.

Must include water or water departments.