New Objectives of Sludge Treatment Considering a Safe Sludge Removal
Sewage Sludge consists of valuable compounds such as nutrients as well as harmful substances e.g. heavy metals. For sludges with a low pollutant concentration, utilization in agriculture is the best option for sludge reuse.
by Prof. Dr.-Ing. Norbert Dichtl
Highly polluted sludges are not suitable for agricultural reuse, but carbon recycling is possible by using mechanical (disintegration) or chemical pre-treatment with anaerobic degradation processes. The other important valuable compound in sludge is phosphorus which is a limited resource on earth. Recycling options for phosphorus are also describe in the paper. A safe disposal of the residues can be achieved by using incineration.
published: Universität Braunschweig - Institut für Siedlungswasserwirtschaft, Abwasserreinigung (January 2005), 2|2003
Keywords: Final Sink, Hazardous Waste, Metals, Precious Metals, Policy of European Union, Removal, Renaturation, Sewage Sludge, Sorting Technology, Waste Separation, Waste-fuelled Power Station, Waste-to-Energy Plant
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