The KSA-unit from Simon Moos Maskinfabrik A/S combines a sludge tanker and on-site dewatering unit. The sludge is taken up into the vacuum tank, and when the vacuum tank has been filled, the sludge is then pumped into the dewatering chamber via the machine room. During this process a polymer is added to cause flocculation. During and after the pumping process, dewatering takes place through the filter screens. The flocculated dry material is held back by filter screens. The dewatered sludge can be transported to a treatment plant, disposed of in landfills, composted or used on farmland. The reject water is returned to the tank and only the dewatered sludge remains in the unit. www.simonmoos.com.