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New Objectives of Sludge Treatment Considering a Safe Sludge Removal
Author(s) -
Dichtl N.
Publication year - 2003
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200390032
Subject(s) - sewage sludge , waste management , incineration , resource recovery , environmental science , reuse , sewage sludge treatment , phosphorus , pollutant , sewage treatment , environmental engineering , chemistry , wastewater , engineering , organic chemistry
Sewage sludge consists of valuable components such as nutrients as well as harmful substances, e.g. heavy metals. For sludge with a low concentration of pollutants, its utilization in agriculture is the best way of sludge reuse. Carbon recycling is also possible by using disintegration in combination with anaerobic degradation processes. The other important compound in sludge is phosphorus, which is a limited resource on earth. Recycling options for phosphorus are also described in the paper. A safe disposal of the residues can be achieved by using incineration.