The acidification of primary sludge is an important measure to promote increased biological P elimination and denitrification at wastewater treatment plants. In laboratory experiments and at large-scale plants it has been found that the COD in the influent of biological treatment stages can be increased by 10–15% in the form of easily degradable carbonic acids. However, the operation of acidification thickeners leads to odour problems, as well as to considerable problems in terms of safety, in covered tanks.
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Research Article| May 01 2000
Acidification of primary sludge to promote increased biological phosphorus elimination and denitrification
Water Sci Technol (2000) 41 (9): 163–170.
B. Teichgräber; Acidification of primary sludge to promote increased biological phosphorus elimination and denitrification. Water Sci Technol 1 May 2000; 41 (9): 163–170. doi: https://doi.org/10.2166/wst.2000.0196
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