Session of 5 of Knowing Your Water

Iron in water?

Yes.For a lay man its the most unlikely thing to be found in water.But if you remember the first session of this series , last 26th spt. ,you have the answer - that, water is a universal solvent.You will anything and everything in water .And keep in mind that  iron is the most abundant metal on earth' s crust. 

     Well, iron present in water in dissolved form, meaning it will not be removed by normal filtration.Water comes out of sand filter,whether slow or rapid, which we discussed in previous sessions, will still contains iron.Situation is same with Activated Carbon Filter, which we explained in the last session.

And do we have to remove iron?

You don't have to remove it completely. A certain amount of iron is permissible, even desirable, according to Govt. regulations as well as WHO standadrs. Iron deficiency is a nutritional deficiency. Deficiency in iron leads to a decease called " anemia" characterized by reduction in the number of red blood cells.So we now know  that excess iron in water  is the issue .

What happens when iron is in excess ?

Well, water tastes sour,a sort of metallic taste. And water turns colour. And it often stains the containers. The stains are brown and are  evident on tile or ceramic surfaces. Excess iron in water is also a health hazard.Excess iron leads to iron toxicity , severe in the case of children. 

Another problem is Iron Bacteria. 

And What's  Iron bacteria?

This question is often asked.Iron bacteria or iron oxidising bacteria grows in water where there is iron content as well as sufficient dissolved oxygen. The colonies of iron bacteria appears as  brown slime .This is what stains the clothes, plumbing fixtures and containers washed with water carrying iron  bacteria.

Now we have to remove excess iron from water, whether its for drinking or utility.

How do we remove excess iron?

There are several methods to remove excess iron.Most of them are complex procedures.The process is often a combination of chemical treatment and filtration .The filtration, after the coagulation and precipitation (chemical treatment ) is either done conventionally  or through advanced iron specific resins, depending up on the specified  requirements.

We at Tueline water Technologies , design , erect and commission  simple , easy to opreate and more over cost effective Iron removal Plants , also called Deferization plant  based on the Flow Diagram , given herewith;

 

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We'll meet with issues of Hard Water and solutions in our next session