Iron bacteria are organisms that consume iron to survive. In the process, they oxidize available iron that produces iron deposits (rust) and a red or brown slime called a “biofilm.” Though the organisms are not harmful to humans,they can exacerbate an already troublesome iron issue in water.
The municipal water distribution system, a modern miracle, would not be possible without chlorination or similar disinfectants. Chlorine destroys disease-producing organisms and prevents their proliferation by disrupting microbial DNA and RNA. Another benefit is the improvement of water quality resulting from the reaction of chlorine with ammonia, iron, manganese and organic substances, allowing additional filtration and sedimentation processes to run smoothly.
Tannins are astringent, bitter-tasting plant polyphenols that bind and precipitate proteins. The word tannin refers to the source of tannins used in tanning animal hides into leather; however, the term is widely used to refer to brown color in water caused by decaying organic substances.Read More