John Cockerill (Acva/Proserpol)

John Cockerill Group, founded in 1817 and headquartered in Belgium, is a diversified industrial conglomerate with 1.697 billion euros in 2024 order entries. Its water and wastewater treatment capabilities operate under the Acva brand through subsidiary John Cockerill Proserpol, based in Guyancourt Cedex, France. The water division delivers engineered treatment solutions across six branded product platforms: BeFlow AGS for aerobic granular sludge wastewater treatment, Medix for micropollutant removal, AcvaMod membrane filtration systems, AcvaSurf for wastewater treatment and water recycling, E-ChloPure electro-chlorination units, and LysoThane bio-methanization systems for sludge-to-biogas conversion. Services span process water production (demineralized water, iron removal), industrial and municipal wastewater treatment via multi-stage plants, water reuse for irrigation and industrial processes, sewage sludge recycling into compost or biogas through cogeneration, and preventive and curative treatment programs addressing corrosion, scaling, legionella, and foaming. John Cockerill also offers Hamon cooling tower solutions and AYRA air pollution control systems. The company serves fine and heavy chemicals, metallurgy, electroplating, pharmaceuticals, cosmetics, agri-food, electronics, and municipal water markets worldwide.