Division de Traitement d'Eaux usées PDF

La liste de problèmes provoqués par les impuretés dans l'eau

Problèmes:

  • Carryover of feedwater into stream, produce Carbon Dioxide in stream leading to formation of carbonic acid (acid attack)
  • Primary source of scale in heat exchange equipment.
  • Causes boiler and water line deposits.
  • Corrosion of water lines, boiler, return lines, heat exchanger equipments, etc. (oxygen attack).
  • Corrosion occurs when pH drops below 8.5
  • Corrosion
  • Scale in boilers and cooling water systems

Méthode de traitement chimique commune:

  • Neutralizing amines, filming amines, combination of both and lime-soda.
  • Lime softening, phosphate, chelates and polymers.
  • Phosphate, chelates and polymers
  • Oxygen scavengers, filming amines and deaeration.
  • pH can be lowered by addition of acids and increased by addition of alkalies
  • Chlorination
  • Lime softening

BOIL KLIN S

Inhibiteur de tartre et corrosion.

POUR TOURS DE REFROIDISSEMENT

The big picture of cooling tower water treatment chemicals is the control of scale, corrosion, microbiological activity, and foaming. Scale can lead to heat exchanger inefficiency, plugged tubes, inadequate flow, and underdeposit corrosion. Corrosion can reduce the operating life of cooling equipment and increase maintenance costs. Microbiological activity can lead to reduced heat exchanger efficiency, plugged tubes, inadequate flow through the cooling tower fill, under-deposit corrosion, etc.

Typical cooling tower treatment chemicals are listed below:

  • Biocides: for microbiological control.
    • Oxidizing biocides (bleach, bromine, chlorine gas, BCDMH, calcium hypochlorite, chlorine dioxide, hydrogen peroxide, iodine, ozone) or our patented BIOXY S
    • Nonoxidizing biocides (isothiazolin, gluteraldehyde, DBNPA, MBT) or our unique POLY QUAT
  • Scale Inhibitors: to protect heat transfer surfaces and cooling system from scale.
    • Phosphates (sodium tripolyphosphate, sodium hexametaphosphate, TKPP)
    • Phosphonates (HEDP, AMP, PBTC)
    • Polymers (polycarboxylates, polyacrylates, polymaleic acid, maleic anhydride copolymer, acrylate/AMPS copolymer, acrylate/AMPS/sulfonated styrene terpolymer, acrylate/sulfonic acid/nonionic terpolymer) – many are dispersants too.
  • Corrosion Inhibitors: to protect metal surfaces from corrosion.
    • Phosphates (orthophosphate, sodium tripolyphosphate, sodium hexametaphosphate, TKPP)
    • Phosphonates (HPA and others)
    • Zinc
    • Silicates
    • TT (Tolyltriazole – for yellow metals)
    • BZT (Benzotriazole – for yellow metals)
    • Molybdate
  • Antifoams: surface-active chemicals that reduce foaming.
    • Silicone and non-silicone blends

COOL T KLIN

Diverse anti-corrosion agents to provide corrosion protection in the cooling tower.

CLOSED LOOPS

For closed loops, the big picture of water treatment chemicals is to control corrosion and microbiological activity. Corrosion can lead to equipment failure and increased maintenance costs. Microbiological activity can lead to reduced heat exchanger efficiency, plugged tubes, and under-deposit corrosion.

Typical closed loop treatment chemicals are listed below:

  • Corrosion Inhibitors: to protect metal surfaces from corrosion.
    • Nitrites
    • Zinc
    • Silicates
    • TT (Tolyltriazole – for yellow metals)
    • BZT (Benzotriazole – for yellow metals)
    • Molybdate
    • Sulfite
    • pH control (caustic, borates, etc.)
    • VpCI (Volatile Phase Corrosion Inhibitors)
  • Biocides: for microbiological control.
    • Nonoxidizing biocides (isothiazolin, gluteraldehyde, DBNPA, MBT, POLY QUAT)

POUR LE CONTRÔLE MICROBIEN DANS L'EAU ET LES EAUX USÉES

BIOXY S new

Bactéricide - fongicide - algicide.

POLY QUAT

Assainisseur liquide pour surfaces dures

OXY CHLOR 12

Hypochlorite de sodium __ 12%.

ATO SAN

Contrôle les bactéries, les champignons et les levures.

POUR RO MEMBRANE

EQUATION RO

Prévient la formation du tartre.

POUR DESCALING

DE SCALE

Nettoyant acide avec agent anti-corrosif.

SAFE ACID NF

Nettoyant à base d'acide organique non moussant.

POUR L'ENLÈVEMENT DE PÉTROLE ET PÉTROLIER

OIL RID

Oil spill remover.

POUR LE CONTRÔLE D'ODEUR ET LA BIODÉGRADATION

BACT O MAX

Ideal for aqua culture and aquarium.

ATO BCP

Enhances water biology in aquaculture lagoons.

POUR SCALE ET CORROSION INHIBITION

CORROSION FREE

Contains diverse anti-corrosion agents and neutralizing amines.

PREVENT

A corrosion inhibitor product to provide corrosion protection in various systems.

POLYMERS POUR L'EAU ET LE TRAITEMENT D'EAUX USÉES

ATO PAC

A high performance liquid Polyaluminum Chloride Coagulant.

ATO ALUM

Aluminum sulfate coagulant for potable, waste & water treatment.

ATO FLOCS flocculants

Emulsion Polyacrylamide (PAM), cationic RETENTION AID.

ATO FLOC CP 413

Cationic acrylamide copolymer retention aid.

ATO FLOC 919

Anionic acrylamide copolymer.

ATO FLOC DADMAC

Coagulant in potable water treatment, filter aid and removal of colour in low turbidity streams.

POUR LE CONTRÔLE DE POUSSIÈRE

DUST SUPPRESSANT

A polymer dust suppressant.

POUR H2S & ANAEROBIC MALODOR CONTROL

NT PRODUCT

Élimine les mauvaises odeurs.

POUR LE CONTRÔLE DE MOUSSE

DE FOAM

Anti-mousse idéal pour les usines de transformation alimentaires.

IWT 310

Developed by atomes for treatment of boilers, cooling and process water.

IWT 500

Corrosion inhibitor - nitrate based.