Sludge dewatering, Sludge treatment, Dehydris, Lime ... Sludge dewatering Sludge treatment Dehydris Lime ... The Dehydris™ Lime, pre-liming for sludge with centrifugation, is suited to the dewatering of all type of sludge, fresh or digested from urban wastewater treatment and to any size plant. ... advanced dewatering of sludge by pre-liming before centrifugation – Dehydris™ Lime...