It depends on the sludge ...
Published by Rajendrakumar Saraf
It depends on the sludge characteristics. Treatment may have to be given for the sludge which is difficult to dewater. Primary & Secondary sludge are to be thickned in the Thickner and then dewatered by various methods available.
If sludge has biodegradable organic matter then anaerobic treatment can generate the biogas.
Sludge can also be considered for recovery. For example sludge from Pulp and paper mill is used as raw material in Board Mills.
Rajendrakumar V Saraf, FIE, FIWWA
Chairman
Viraj Envirozing India Pvt. Ltd
21, Radhakrishna, Near SBI, Paud Road
Pune 41038
Tel 02015433445, 9822186763