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Tell me about chemicals desalination plants?

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Question ajoutée par naseer ahmad naseer ahmad , Foreman(Chemical Process). , Chemical Industry (government sector) D.G.Khan.
Date de publication: 2014/07/10
Azrin Kasman
par Azrin Kasman , Process & Operations Manager , Suez

Hi Nasser

 

Since your question is very brief, I will share with you a brief answer too.

Pre Treatment

  • Ferric Chloride - Sea Water Coagulation
  • Sodium Hypochlorite or Chlorine Gas - Mainly used to Protect Intake Pipe from Biological growth. Also useful to neutralize Algal Bloom.
  • Sodium Meta Bisluphate - Dechlorinate Sea Water. 
  • Sulphuric Acid - Sea Water pH Adjustment
  • Polymer - Additive used combined with Ferric Chloride to optimize Flocculation process.
  • Sodium Hydroxide - pH Adjustment

Post Treatment

  • Sodium Hydroxide - 2nd Pass Boron Removal
  • Anti Scalant - Additive to Protect RO from Scalling
  • Sodium Hypochlorite or Chlorine Gas - Disinfection
  • Liquid CO2 - Remineralization of RO Permeate Water
  • Calcium Hydroxide - Remineralization of RO Permeate Water
  • Fluoride - Health (tooth)

RO CIP (Clean In Place) Chemical

  • SMBS
  • Sodium Hydroxide
  • Citric Acid
  • STPP
  • SLS
  • EDTA

Aside some Plant also uses chemical below for UF CIP

  • HCL

 

Best Regards

 

Azrin Kasman

 

Abraam Allam Ibrahim
par Abraam Allam Ibrahim , Lab Technician , Life lab Laboratories

Plant uses to remove salts from water