Water-Chemistry at CG Group

Water Chemistry

Perfect liquid.

We have extensive experience in the field of industrial water treatment. Thanks to the differentiated range of around 3000 basic and specialty chemicals, we can offer all products for water chemistry from a single source. In addition, we take into account the specific requirements of customers and their water-carrying systems when designing and manufacturing our own EVC® water treatment products.

Comprehensive Product Portfolio

EVC® - Efficient Process Chemistry. We offer over 200 EVC products, which are used in a wide range of fields:
  • Wastewater:
    • Flocculation aids
    • Heavy metal precipitation
    • Neutralisation
  • Steam generator:
    • Oxygen binders
    • Descaling agents
    • Steam and condensate protection
  • Cooling water:
    • Hardness stabilisers
    • Corrosion inhibitors
    • Dispersing agents
  • Microbiological control:
    • Biocides
    • Biofilm removal
    • Legionella monitoring
  • Process water:
    • Stabilisers
    • Defoamers
    • Emulsion separation
    • Odour absorption
  • Cleaners:
    • Limescale and rust remover
    • Degreasing
    • Passivation
  • Drinking water:
    • Disinfection
    • Hygiene
  • Water treatment:
    • Regenerating salt
    • Acids and alkalis
    • Antiscalants


Our in-house development and manufacturing of our EVC® water treatment products takes into account the specific requirements of customers and their water-carrying systems. We assist our customers with our specialists, supported by the experts in application technology.

Our experts also offer training courses on “Securing hygienically sound operation of evaporative cooling systems”, in accordance with the VDI 2047 Guideline.

Everything about water and the environment at a glance:

  • Waterworks - Sustainable drinking water treatment – according to your individual requirements
  • Wastewater treatment - To ensure that you reliably meet regulatory requirements.
  • Cooling water treatment - To improve the efficiency and hygiene of your cooling circuits.
  • Boiler feed water - Perfect conditioning to ensure systems perform well for many years.
  • Cooling brine/heat transfer medium - Optimum care of technical and food-related cooling and heating systems.
  • Sterilisers - To ensure that your processes are always safe and hygienic.
  • Reverse osmosis - Membrane protection and maintenance for efficient ultrapure water production, feed or rinsing water treatment.
  • Municipal wastewater treatment plants - Our expertise for needs-based assistance in the field of wastewater.


With our water chemistry services and products, we help our customers to meet or realise their goals with regard to their plant safety, cost-effectiveness and the environment.

Our professional sales force is available to provide personal advice to customers on site. It is supported professionally at all times by colleagues from the Application Technology department and the in-house water laboratory.

Areas of application:

  • Water treatment
  • Steam generation/hot water systems
  • Cooling water
  • Process water
  • Wastewater treatment
  • Dehydration of inorganic and organic sludges
  • Microbiological control of all types of water-carrying systems (including Legionella)
  • Acidic and alkaline special cleaners for water-carrying systems
  • Dosing systems for water treatment
  • Measurement and control systems for cooling circuits

By using our products, we help our customers to meet their goals in terms of plant safety, cost-effectiveness and the environment.

We are here for you

  • Consulting | Analysis | Optimisation
  • System recording | Water analyses
  • Hygiene audit | Risk analyses
  • Lectures | Training | VDI 2047 Training Partners

Training VDI 2047-2

CG and CSC Jäkle Chemie offer you licensed training courses in accordance with the VDI Guideline 2047 Part 2 on “Securing hygienically sound operation of evaporative cooling systems”. As we are an officially listed training partner of the VDI, you will receive a VDI certificate after passing the exam.

Our experts are here for you: