germany-manching: sludge disposal services./ wastewater treatment plant manching dewatering and disposal of digested sewage sludge./ service in one lot with the following partial services: a. dewatering of digested sewage sludge (approx. 11,000 m³/a in average with an average ts content of 3% in the raw sludge) to a dewatered ts content of approx. 25% b. removal and thermal utilization of the sewage sludge (estimated amount over 4 years approx. 5,700 t).