HomeCataloged ListAlphabetic ListWhat's NewContact

 

Upper level
Flocculant/Coagulant for RO
Antiscalant/Antifoulant for RO
Cleaner for RO,UF and EDI
Biocide for RO,UF and EDI

 

 

Scale and Fouling Inhibitors For Reverse Osmosis

Chemical fouling, typically due to carbonate, sulphate, silica, Iron, occurs as a result of the concentration of dissolved inorganic salts at the membrane surface, as pure water flows through the membrane, if the ionic product of a dissolved salt exceeds its solubility product then precipitation can occur, leading to fouling of the membrane surface.

Historically, mineral acids and polyphosphate were used to control deposition in both brackish water and seawater operations, but neither were satisfactory in all conditions. Mineral acids can present serious supply problems and safety hazards to plant operators. The use of acid also requires accurate dosing and control if scaling and corrosion problems are to be minimized. Sulphuric acid can also contribute to sulphate scaling problems. Polyphosphate is not considered to be completely effective against sulphate deposition.

TRISPE 1000

A multifunctional anti-scalant/anti-flulant for reverse osmosis system is an effective carbonate and sulphate inhibitor specially formulated for use in high ionic strength waters.

Characters:

  1. Certified to ANSI/NSF standard 60 for use in reverse osmosis systems producing potable water.

  2. Compatible with organic ST coagulant and many other organic coagulants.

  3. Approved and certified for use with membrane manufacture.

  4. Allows optimized plant recovery without the need for softening.

  5. Effectively controls scales including calcium carbonate, calcium sulfate, barium sulfate, LSI of the concentrate water is 2.78 no scaling.

  6. Maintains cleaner membrane surfaces by dispersing particulates.

  7. Effective PH range in feed waters is 5-9.

  8. Compatible with feed water that contain aluminum and iron oxides.

  9. Product may be fed neat or diluted.

Recommended operation limits of brine water parameters:

Silica: 200 ppm max.
LSI: 2.78 max.
Iron: 1ppm max.
Aluminium: 0.5ppm max.
Calcium sulphate: 8000 ppm max

TRISPE 1600


Antiscalant/ antifoulant for reverse osmosis system is a multifunctional antiscalant, highly effective in preventing calcium sulphate scale formation on membrane surfaces.


Characters:

  1. Certified to ANSI/NSF standard 60 for use in reverse osmosis systems producing potable water

  2. Compatible with organic ST coagulant and many other organic coagulants.

  3. Approved and certified for use with membrane manufacture

  4. Allows optimized plant recovery without the need for softening.

  5. Effectively controls scales including calcium sulfate, barium sulfate.

  6. Effectively controls scales including calcium carbonate, calcium carbonate, calcium fluoride and metal oxides scale formation.

  7. Maintains cleaner membrane surfaces by dispersing particulates.

  8. Effective PH range in feed waters is 5-9.

  9. Compatible with feed water that contain aluminum and iron oxides.

Recommended operation limits of brine water parameters:

Silica: 200 ppm max.
LSI: 2.60 max.
Iron: 1ppm max.
Aluminium: 0.5ppm max.
Calcium sulphate: 10000 ppm max.

 

TRISPE 1700

Antiscalant/antifoulant for reverse osmosis system is a multifunctional antiscalant, highly effective in preventing calcium sulphate scale formation on membrane surfaces.

 

Characters:

  1. Certified to ANSI/NSF standard 60 for use in reverse osmosis systems producing potable water.

  2. Compatible with organic ST coagulant and many other organic coagulants.

  3. Approved and certified for use with membrane manufacture.

  4. Allows optimized plant recovery without the need for softening.

  5. Effectively controls scales including calcium phosphate scale formation.

  6. Effectively controls soluble iron.

  7. Maintains cleaner membrane surfaces by dispersing particulates.

  8. Effective Ph range in feed waters is 5-9.

  9. Compatible with feed water that contain aluminum and iron oxides.

Recommended operation limits of brine water parameters:

Silica: 240 ppm max.
LSI: 2.60 max.
Iron: 4ppm max.
Aluminium: 0.5ppm max.
Calcium sulphate: 7000 ppm max.

Calcium fluoride: 120ppm max

TRISPE 1800

 

Antiscalant/ antifoulant for reverse osmosis system is a multifunctional antiscalant, highly effective in preventing silica scale formation on membrane surfaces as well as controlling calcium carbonate, strontium sulfate, barium sulfate, iron and calcium fluoride scale formation.

 

CHARACTERS:

  1. Certified to ANSI/NSF standard 60 for use in reverse osmosis systems producing potable water.
  2. Compatible with organic ST coagulant and many other organic coagulants.
  3. Approved and certified for use with membrane manufacture.
  4. Allows optimized plant recovery without the need for softening.
  5. Effectively controls scales silica scale formation (up to 400ppm) as well as controlling inorganic scaling including calcium carbonate, calcium sulfate, barium sulfate.
  6. Maintains cleaner membrane surfaces by dispersing particulates.
  7. Effective PH range in feed water is 5-9.
  8. Compatible with feed water that contain aluminum

Recommended operation limits of brine water parameters:

Silica: 400 ppm max.
LSI: 2~2.5 max.
Iron: 0.5ppm max.
Aluminium: 0.5ppm max.

Copyright 2005 Wuzhou International Co., Ltd. (China)   All rights reserved   Last Updated May, 2005