Industrial Water Treatment Chemicals

Hydrex™ industrial water treatment chemicals from Veolia Water Technologies provide complete solutions for optimising the operation of water treatment plants and equipment.

Find Hydrex™ Chemicals for your application: 

Veolia is a world-leader in industrial water treatment chemicals, with products designed for processing applications, systems and effluent in General Industry; Mining; Oil & Gas; Food & Beverage; Petrochemicals; Pharmaceuticals; Power Generation and more.

Rely on high-quality water treatment chemical products and services provided by Veolia’s global team of experts located near you!


Hydrex™ chemicals are produced with high-quality raw materials, purity analyses, strict quality control, storage of samples for all production batches and jar testing to ensure maximum performance.

Manufactured at our new state-of-the-art chemical blending facility in Johannesburg, Veolia meets all your industrial chemical requirements with short lead-times and fast shipping to your site, anywhere in Africa. This means extended product shelf life and reduced inventory demands.

Our industrial water treatment chemicals provide complete solutions for any water condition requirement:

  • Physical pre-treatment of water: settling, filtration, etc.
  • Physicochemical pre-treatment of water: reverse osmosis, resins, etc.
  • Treatment of energy carrying fluids: cooling towers, boilers, etc.
  • Process water production
  • Effluent and sludge treatment, etc.

Selected HYDREX™ products carry ISO, SANS, ANSI/UL and SABS Foodgrade approval.

Optimise your water treatment costs with the Hydrex range of industrial water treatment chemicals! Send us your requirements here.

The Hydrex™ Range Of Industrial Water Treatment Chemicals

Boiler Water Treatment Chemicals

Corrosion, scaling and deposition can reduce the operating efficiency of boilers and steam cycle systems. This can reduce heat transfer rates, increase fuel costs and cause equipment and piping failure.

The Hydrex™ 1000 Series provides helps you avoid these problems, with optimum treatment for process water in boiler and heating applications of low, medium and high pressure boilers.

This product series provides end-to-end water treatment solutions for shell steam boilers, water tube boilers and coil generators, including:

  • Scale inhibitors
  • Corrosion inhibitors
  • Antifoams
  • Oxygen scavengers
  • Dispersants
  • Steam and condensate treatment
  • Green products

Discuss your boiler water treatment chemical requirements with Veolia

Cooling Water Treatment Chemicals

The Hydrex™ 2000 Series is specially formulated to improve the efficiency, performance and lifespan of cooling towers and recirculation, closed and once-through cooling water systems. Our cooling water chemicals include:

  • Scale inhibitors
  • Corrosion inhibitors
  • Bio-dispersants
  • Cooling tower cleaning

Discuss your cooling water treatment chemical requirements with Veolia

Membrane Cleaning Chemicals

Hydrex™ 4000 is specially formulated for RO membrane cleaning and nanofiltration, ultrafiltration and microfiltration treatment systems. This chemical range helps to reduce maintenance and operation costs, protect the expensive membrane elements and ensure smooth and efficient operation, through dechlorination, surface disinfection and/or membranes cleaning. This product series includes:

  • RO membrane antiscalant
  • Biocides
  • Chlorine removal chemicals
  • C.I.P. programs
  • Storage agents

Most Hydrex™ 4000 Series chemicals are approved by major membrane suppliers, potentially extending your membrane warranties.

Discuss your membrane cleaning chemical requirements with Veolia

Maintenance and Cleaning Chemicals

Veolia manufactures a complete range of industrial water treatment chemicals for maintenance and cleaning applications, including solutions for steel surface descaling; carbonate, iron oxide deposits; biological deposits; acidic and alkaline cleaners; bio-sourced cleaners; and mixed applications.

The Hydrex™ 5000 Series range of industrial cleaning chemicals includes:

  • Resin cleaning products
  • Scale removers
  • Degreasing agents
  • Passivators
  • Antifoams
  • Surfactants

Discuss your maintenance and cleaning chemical requirements with Veolia

The internationally-recognised Hydrex™ range of water treatment chemicals from Veolia Water Technologies enhances the entire water-cycle while reducing plant operating and maintenance costs.

Industrial Wastewater Treatment Chemicals

The Hydrex™ 6000 Series includes chemicals designed for specifically for industrial process and industrial effluent treatment.

Our effluent treatment chemicals generate savings for your industrial wastewater treatment system by reducing the overall per-m3 cost of treated effluent and the cost of sludge through improved dewatering programmes.

This product series includes:

  • Organic and inorganic coagulants
  • Flocculants (anionic and cationic emulsions, powders and beads)
  • Antifoaming agents
  • Odour control
  • Metal removal
  • Green chemistry and water recycling chemicals

Discuss your industrial wastewater treatment chemical requirements with Veolia


This complete range of biocide chemicals is used to control the growth of bacteria, fungi and algae in cooling water systems, water reuse systems and effluent. These chemicals are also used in for legionella testing and for the treatment of ingredient water in the food and beverage industry.

The Hydrex™ 7000 Series includes:

  • Rapid-action or delayed-action products
  • Products with a broad spectrum of activity, or specifically targeted against a specific type of contaminant (moss, algae, bacteria, etc.)
  • Oxidant or non-oxidant products
  • Continuous-action or shock treatment products
  • OSG HYDREX (On-site Generation): New efficient technology used to generate biocides in-situ from 100% active safe precursors, to avoid water transportation. On demand biocide generation avoids long term storage and potential degradation

Discuss your biocide requirements with Veolia

Industrial Applications

The 8000 series is a complete range of specially formulated chemical formulae for industrial processing applications. This product series’ applications include:

  • Chain lubricants
  • Conveyor lubricants
  • Food and Beverage
  • Bottle washing
  • Tank cleaning
  • Crate washing
  • C.I.P. cleaners
  • Mining
  • Sanitation

Discuss your chemical requirements for industrial applications with Veolia

Other Chemical Applications

Veolia offers solutions for each specific requirement in terms of chemical water conditioning, including tailor-made formulations as part of our Hydrex™ 9000 chemicals. Chemicals within this range include:

  • Odour control
  • Dust control
  • Thermal desalinisation
  • Fuel additives
  • Lye additives

Discuss your water treatment chemical requirements with Veolia

Skilled team of sales and chemical service engineers, trained on water treatment processes, equipment and chemistry.

Our Brand-New South African Chemical Blending Facility To Serve Africa

In April 2018, Veolia’s new 6 600 m2 chemical blending facility opened for business. Capable of producing up to 1 500 tons of chemicals each month – triple the capacity of our previous factory – the facility demonstrates Veolia’s commitment to world-class manufacturing compliance, safety and environmental standards while achieving maximum product quality.

New, specialised pre-treatment capabilities means we can upgrade ingredient water to a softened or demineralised standard as required by our customers’ high-specification industrial water treatment systems. This is critical for specialist treatment applications such as reverse osmosis plants and for industries such as offshore oil and gas in West Africa.

Allied to the infrastructure upgrades of our chemicals unit, an expanded service and technical presence, including in-house logistics management across both Africa and in South Africa, has provided the agility and ability to deliver turnkey chemical orders rapidly and reliably as our customers require.

Our new facility is located at:

298 Elgin Road, Pomona Ext 207, Kempton Park, 1619.

Contact us on: +27 (0) 10 040 7311

Let Veolia Simplify Your Chemical Dosing, With A Tailored O & M Contract

A tailored chemicals and operations programme can help optimise your entire water treatment system. Leaving your chemical dosing and water conditioning maintenance requirements to Veolia puts your water cycle in the hands of international water treatment experts, while you focus on your core production activities.

This means ongoing optimisation of your water treatment system based around lowering your overall cost of ownership, improving profitability, ensuring compliance, and lowering your plant footprint.

Discuss your industrial water treatment chemical requirements with Veolia’s experts:

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