This book demonstrates the prospects for enhancing thickening or dewatering of sewage sludges and outlines some of the methods which might come into consideration. It is based on the proceedings of a 'round-table' meeting held at Bilthoven, The Netherlands, in April 1985.
Session I 1. Application of electrical fields to thicken and dewater sewage sludges 2. Influence of polyelectrolyte characteristics on sludge conditioning (lab evaluations) 3. The CHP-filter press—the first continuous high-pressure filter press 4. A Dutch approach to manure processing Session II 5. Aerobic thermophilic digestion of pre-thickened sludge using air 6. Processing organic waste products to black soil and organic fertilizers 7. Sludge management by thermal conversion to fuels 8. Accumulation of refractory 4-nonylphenol during mesophilic anaerobic sludge stabilization 9. Main conclusions of the round-table