Guest

SIR,PLEASE EXPLAIN HOW HARD WATER CAN BE SOFTENED BY USING SYNTHETIC RESINS?

SIR,PLEASE EXPLAIN HOW HARD WATER CAN BE SOFTENED BY USING SYNTHETIC RESINS?

Grade:11

1 Answers

SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear student,

Water softeners operate on the principle of ion exchange. A synthetic resin (zeolite) bed is charged with sodium ions by regeneration with salt (sodium chloride). Hard water, containing calcium and magnesium ions, flows through the resin.

Ion exchange occurs when the calcium and magnesium ions attach themselves to the resin, displacing the sodium ions. The resultant water is softened, being free from calcium and magnesium, but the sodium content is increased. Usually, the sodium increase will be approximately 50 mg/L sodium per 100 mg/L of hardness.

 

Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..

 

Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

sagarsingh24.iitd@gmail.com

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free