Dewatering Filter Presses also known under names such as JWI, USFilter, Perrin and Siemens. The industry leader in dewatering for over 40 years in any process that requires a separation between liquid and solid suspension, Evoqua has been setting the standard. Applications for filter presses range from industrial waste sludge, lime softening residuals, high solids mineral processing, to high-tech circuit washing and more. Whatever your dewatering needs Evoqua has the necessary equipment. We even carry mobile and portable filter presses. Our filter presses are designed to be fully automatic, running lights-out, with automatic plate shifters and clother washers, or manually with manned plate shifters.