H Hydrex™ Cooling System Chemicals For the treatment of cooling systems, Hydrex™ offers the 2000 series. Sludge treatment I IDRAFLOT® An innovative and effective water mixing device. Clarification and Flotation IDRASCREEN® To separate solids from process and drainage water has always been a serious problem often difficult to solve in many industrial sectors and wastewater treatment plants. Screening and Separation M MULTIFLO™ PACK Universal & multipurpose clarification process Clarification and Flotation