B Biogas Manager Control AQUAVISTA Biogas Manager Control AQUAVISTA (BM Control AQUAVISTA) technology ensures that the treatment plant is operating at the most optimal conditions, providing maximum security and reliability. Monitoring and Control Systems 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