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This paper consists of a literature study about the characterisation of sludge and its behaviour during the dewatering process and a questionnaire survey of 30 plants using sludge beds.
CERONIO, A.D. VAN VUUREN, L.R.J. WARNER, A.P.C. (1999): Guidelines for the Design and Operation of Sewage Sludge Drying Beds. WRC Report. Pretoria: Water Research Commission (WRC) URL [Accessed: 14.04.2015]