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Role of Cu(II) and Zn(II) species on the anaerobic digestion of synthetic activated sludge
Author(s) -
Mehrotra Anupama,
Mehrotra Indu,
Tandon Shiv N.
Publication year - 1993
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280560211
Subject(s) - zinc , anaerobic digestion , biodegradation , anaerobic exercise , chemistry , activated sludge , copper , metal , fraction (chemistry) , pulp and paper industry , environmental chemistry , waste management , chromatography , methane , sewage treatment , biology , organic chemistry , physiology , engineering
The effect of different concentrations of copper or zinc on the anaerobic biodegradability of sludge has been investigated. An attempt has been made to correlate the metal forms with the performance of the digester. The presence of organically‐bound copper is indicative of the deteriorated condition of the digester. However, an increased HNO 3 extractable fraction is associated with the failure of the zinc‐spiked digesters.