Chlorine dioxide (ClO₂) has become a cornerstone of modern water treatment. It controls Legionella, removes biofilm, oxidises iron and manganese, and improves taste and odour—all with fewer harmful by‑products than traditional chlorine. Operators can obtain ClO₂ either by generating it on site with specialised equipment or by buying stabilised solutions ready to dose. Understanding who manufactures these products in Europe and how generation costs stack up helps water‑treatment plants make informed decisions.
Who makes stabilised chlorine‑dioxide solutions in Europe?
Tristel Solutions (UK) – Through its Purogene brand, Tristel offers a 2 % stabilised chlorine‑dioxide solution (20 g L⁻¹). The product is a potent liquid disinfectant designed for manual fill or soak disinfection. It controls Legionella and provides continuous bacteriological treatment in hot and cold‑water systems; it is approved for drinking, cooking and washing water, and can also disinfect waterworks reservoirs and distribution equipment .
Houseman Services (UK) – Houseman supplies a chlorine‑dioxide microbiocide (“Microbiocide CD”) consisting of a 2 % stabilised chlorine‑dioxide solution plus activator, packaged in 25‑L/25‑kg containers . This product is marketed for legionella control and cleaning of water systems.
a.p.f Aqua System AG (Germany) – This company markets Clorious2, an aquatic chlorine‑dioxide solution at 0.6 % (6 g L⁻¹). It also produces on‑site generators that react sodium chlorite with sodium persulphate to yield chlorine‑dioxide solutions up to 2 % concentration (20 g L⁻¹) for continuous dosing . Clorious2 is sold in drums and cans, and the generator’s clean production method avoids chlorinated by‑products .
Accepta Group (UK) – Accepta’s Klarolaks is a high‑strength stabilised chlorine‑dioxide liquid. When dosed, it generates chlorine dioxide from sodium chlorite and sodium hypochlorite and remains stable for extended periods. Accepta emphasises that Klarolaks can be used in potable water systems, cooling towers and process water where on‑site generation is impractical .
Kemin Industries (Belgium/Netherlands) – Kemin’s XCS‑11 is sold in the EMENA market as a 2 % and 5 % stabilised chlorine‑dioxide solution for oral‑care products. Although targeted at the personal‑care sector, it demonstrates that 2 % solutions are manufactured within Europe (via Kemin’s European facilities).
Why on‑site generation often costs more
Water‑treatment plants might consider installing their own chlorine‑dioxide generators to avoid purchasing stabilised products. However, these systems carry high capital and operating costs:
- Equipment prices – Small dosing/generation systems such as EMEC’s LOTUS Mini series retail for around €7,900–€8,100 . Larger units capable of treating thousands of litres per hour cost much more and require professional installation.
- Capital versus consumables – A case study in Greenhouse Product News noted that the consumable cost of ClO₂ systems includes a service agreement and chemical inputs. Operators who bought generation equipment faced higher upfront costs but lower recurring costs, while those who leased equipment paid higher consumables to avoid the capital outlay .
- Maintenance and safety – On‑site generation demands trained staff, chemical storage, bunding, emergency venting and monitoring instrumentation. Plants must handle precursors like sodium chlorite and strong acids or oxidants, maintain dosing pumps, manage by‑product disposal and comply with strict safety regulations—none of which apply to simply dosing a ready‑made stabilised solution.
For smaller municipal systems, hospitals, commercial buildings or distributed water networks, the combination of high equipment costs, safety liabilities and maintenance burdens often outweighs the benefit of on‑site generation.
How Chemicals United simplifies supply across Europe
Chemicals United partners with a European manufacturer to supply high‑quality stabilised chlorine‑dioxide solutions—including 2 % formulas like Purogene and similar offerings—and delivers them directly to customers across Europe. This approach offers several advantages:
- No capital investment – Customers avoid spending tens of thousands of euros on generators and installation.
- Ease of use – Stabilised solutions are dosed directly from their containers using simple pumps, eliminating the need to mix acids or manage gas‑generation systems.
- Lower risk – Pre‑formulated products reduce exposure to precursor chemicals and the risk of ClO₂ gas leaks.
- Flexible logistics – With a close European manufacturing partner, Chemicals United can ship promptly to EU countries and tailor quantities to each client’s needs.
Conclusion
Europe has a handful of producers supplying stabilised chlorine‑dioxide solutions, with only a few offering 2 % strength products. Installing on‑site generators can be viable for very large treatment works, but for most facilities the costs and complexities are prohibitive. Stabilised solutions—especially those delivered by a reliable supplier—provide a practical alternative. Chemicals United bridges the gap by leveraging local manufacturing to supply stabilised chlorine‑dioxide products anywhere in Europe, enabling water‑treatment operators to achieve compliant disinfection without the burden of owning and operating costly generators.
