Regeneration of true exhausted zeolite bed, Chemistry

Q. How is true exhausted Zeolite bed regenerated? Give the merits and demerits of Zeolite process.

                                                                   OR

State the Zeolite process for the removal of hardness of water. Discuss its merits over Lime-soda process.

                                                                OR

Explain the Zeolite method of water softening in detail.

Ans.

Regeneration of true exhausted Zeolite bed: When the softening process is continued for longer time, the Zeolite is completely converted in calcium and magnesium Zeolite (CaZ and MgZ) and it stops to further soften water, it gets exhausted. At this stage the supply of hard water is stopped and exhausted Zeolite is regarded by treating it with 10% NaCl solution. This whole process involved alternate cycle of softening and regeneration.

Merits of Zeolite process

1.      Hardness of water is almost completely removed.

2.      Equivalent used occupies small space.

3.      There is no damage of formation of sludge in treated water.

4.      Process automatically adjusted itself for variation in hardness of incoming water.

Demerits:

1.      The process only replaces Ca+2 and Mg+2 by sodium ion, but leaves all other ions as such as treated water.

2.      Turbid water, mineral acid water and coloured water containing Mn+2 and Fe+2 cannot be treated efficiently.

3.      Treated water contains more sodium salts.

Posted Date: 7/21/2012 9:17:20 AM | Location : United States







Related Discussions:- Regeneration of true exhausted zeolite bed, Assignment Help, Ask Question on Regeneration of true exhausted zeolite bed, Get Answer, Expert's Help, Regeneration of true exhausted zeolite bed Discussions

Write discussion on Regeneration of true exhausted zeolite bed
Your posts are moderated
Related Questions
how to make project on iodoform?

what are the assumpions made in valence bond theory

Explain the steps involved in the preparation of either potassium dichromate from sodium chromate or potassium permanganate from manganese dioxide.

Selecting and Numbering the principal chain Selecting the principal chain : choose the longest continuous chain of carbon atoms consisting of the principal functional

Q. Name the plant based sources of antioxidants? Name the plant based sources of the following antioxidants: Vitamin C, lycopene, isoflavones and organo sulphur compounds.

Hello Dear, my assignment is that I have to write ESSAY 5 pages to 6 pages in Biochemistry calss about technique. after you read the chapter ( the Chapter as attachment) you figure

the law of multiple proportion


Classification of proteins - Conjugated proteins The molecules of conjugated proteins are made up of simple proteins and non protein material. The non-protein material is known