High quality water treatment

Guaranteed 100% safe with ICA System

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ATECA provides 700+ organizations with 100% safe water

Water Treatment with Copper & Silver
How does it work?

Copper silver ionisation is a water treatment method that removes bacteria based on the purifying effect of copper and silver ions. These ions control growth and disarm harmful bacteria in drinking water installations, such as Pseudomonas, Legionella, and E. coli.
The 3 step water treatment process of copper silver ionisation is described below.

Want to dive deeper into Copper Silver Ionisation?

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Technical insights of Water Treatment with Copper and Silver.

Copper Silver Ionisation
Is it a safe water treatment method?

Yes, it is a safe water treatment method. The ICA system and its copper silver ionisation technology have been extensively researched and comply with all strict requirements. Click on the tabs below to read more about the safety and proven track record of ATECA and the ICA system.

Technology developed by NASA

Copper and silver have been used since antiquity for their antibacterial and antiviral properties. In the 1960s, NASA used these properties to develop the copper silver ionization technology. It was safer than chlorine and a corrosion-free method to purify water in spacecrafts.

First in the Netherlands

After NASA, organizations were granted permission to use copper silver ionization for water treatment. ATECA was the first to manufacture and distribute this technology in the Netherlands. Our product is the ICA System, which stands for Ionization Cu Ag.

International affairs

In 2007, ATECA went international. Today, the ICA System can be found in 15 countries. We collaborate with 19 partners , such as suppliers, consultancy agencies, and international distributors. At ATECA, we are convinced that smooth collaboration contributes to combating harmful bacteria worldwide.

International Industries

We are active in a variety of industries, from hospitals to hotels and prisons to Super Yachts. Click here to view the complete list of international industries. The usage of copper silver ionization is dependent on national legislation. Contact us to find out if the ICA System can be applied in your industry and country.

ICA System at 700+ Locations Worldwide


The ICA system has been extensively researched and complies with all strict requirements of the Ctgb, KIWA, and HSE. This means that the ICA System is safe for people and the environment and effective in bacterial control and prevention.

Additionally, ATECA is an authorized ECHA Article 95 list supplier of copper and silver electrodes. We utilize the highest quality of 99.9% Copper and 99.99% Fine Silver.

Click on the logo’s below to download corresponding certificates:



Approved by World Health Organization

The ICA System stays well-below the guideline of the World Health Organization (WHO). The WHO provided the guideline that silver concentrations up to 0.1 mg / liter (100 ppb) drinking water pose no health risks. The ICA System doses only a small amount or 0.02 to 0.04 mg / liter (20-40 ppb) silver in drinking water.
Moreover, a total lifetime intake or 10 g of silver is considered to be the human no-observed-adverse-effect level (NOAEL). Drinking purified water or the ICA System for over 70 years would only lead to 1 or 2 g of silver. This can be considered as negligible.

ICA ServiceLink

The ICA System is equipped with a unique online dashboard, the ICA ServiceLink. The ICA ServiceLink continuously monitors the live functioning of the ICA System. It contains all the necessary information and documents in one place. The ATECA Water Experts monitor operations and send notifications when service is required. Thereby, we can guarantee a smooth ionization process and safe operations or your ICA System.

Request a demo here >>

Quality Guarantee

100% Safe within 1 Year

Compare Water Treatment Techniques

Chlorine Dioxide

  • No smell, taste, or health issues
  • Active in entire installation
  • Residual effect (>6 weeks)
  • Not affected by temperature
  • Removes Biofilm
  • Non-corrosive

Copper Silver Ionisation

  • No smell, taste, or health issues
  • Active in entire installation
  • Residual effect (>6 weeks)
  • Not affected by temperature
  • Removes Biofilm
  • Non-corrosive

Thermal Treatment

  • No smell, taste, or health issues
  • Active in entire installation
  • Residual effect (>6 weeks)
  • Not affected by temperature
  • Removes Biofilm
  • Non-corrosive

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Break the Vicious Circle

Drinking water contaminations, how do you deal with it? There is a chance that your organisation ends up in a vicious circle of contamination, source and site survey, cleansing with a thermal or chemical treatment followed by standard protocol such as flushing activities and installation adjustments. Without guarantee that the contamination problem will be solved.

Often, this leads to unnecessary costs and endless frustrations. Do you recognize this?

With the ICA system you can break this vicious circle and solve the contamination once and for all.

100% safe water
within 1 year

How do I break the vicious circle?

Get into contact!

What did others say?

Scored 4.9 on Google Reviews

  • Marvin SwartMarvin SwartSenior Director Europe - Hilton Hotel

    ATECA Watercare & services, has been and still is a fantastic partnership for many years. The support given by them has been key to operate our business and business continuation. Over the years ATECA has been a lifesaver in pro actively protecting our buildings EMEA wide.

  • Benjamin CarisBenjamin CarisCoordinator Field Service - Aqua Assistance

    Ateca is a professional party that delivers high-quality products. Products usually last a long time and the maintenance on these installations is zero. In addition, it is a partner who thinks along with the customer in water management and seeks customized solutions to arrange the water management for every owner as efficiently as possible. They also deliver custom made gatekeepers, since every installation is different.
    In addition, they use a high service level!

  • Nico KamermanNico KamermanCoördinator maintenance & safety - Marente

    Guaranteed results at Ateca, with a good price, good product, good service and pleasant cooperation.

  • Shalvee SharmaShalvee SharmaSenior Estimation Engineer - Water Bird

    My favorite suppliers!
    Serving excellent products with prompt response and timely delivery always.
    Good luck to your entire team

  • Paul IjzermanPaul IjzermanProperty manager - Landal Greenparks

    We had a massive legionella problem in our bungalowpark. In june 2015 we decided to try the Copper Silver Ionisation (ICA) produced by ATECA. We couldn't be more pleased! No more legionella and no more worries. Our staff in particular is very happy about this purchase.

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Copper Silver Ionisation

Is it for me?

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Cost Effectiveness & Sustainability

The ICA System yields considerable cost savings in line with energy objectives. Although copper silver ionisation sounds like a big investment, you can save substantially by breaking the vicious circle in an earlier stage and by decreasing the following costs:

100% safe without paying too much?

Read the 5 Tips on how to economize!

* Download pdf here.

Let us be your Water Treatment Expert!

The strength of ATECA lies in the management and monitoring of the ICA System. With personal support, 24/7 monitoring, and the unique ICA ServiceLink we can guarantee safe operations of the ICA System.