H Hydrex™ Comprehensive range of water treatment chemicals to suit all water treatment needs. Sludge treatment Hydrex™ Biocides Hydrex™ offers a range of biocides for many applications. Sludge treatment Hydrex™ Other Water Treatment Chemicals Hydrex™ offers solutions for each specific requirement in terms of chemical water conditioning, including tailor-made formulations. Sludge treatment O OPUS® Technology The OPUS® technology is a proprietary Optimized Pretreatment and Unique Separation process for desalination of feed water with high concentrations of silica, organics, hardness, heavy metals, boron and particulates. Multi-Technology Package Solution ORION™ Purified water treatment for the pharmaceutical, generics, healthcare and biotechnology markets. Multi-Technology Package Solution