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Dobrzyńska, Adriana ; Wojnowska- Baryła, Irena ; Bernat, Katarzyna
Publisher:Committee on Biotechnology PAS ; Institute of Bioorganic Chemistry PAS
Date issued/created: Subject and Keywords: Abstract:Numerous studies confirm poly-B-hydroxybutyrate (PHB) synthesis by activated sludge under anoxic/aerobic conditions at high COD/N ratio in waste- water. In the presented experiment poly-P-hydroxybutyrate (PHB) storage and degradation were observed in activated sludge at low COD/N ratio - 3 in wastes. The researches were carried out in a single-stage system with activated sludge under constant oxygen supplied conditions. Readily biodegradable fraction increased in municipal wastewater through the addition of 0,2 g/dm^ acetate. Moreover, ammonium nitrogen was added to the wastes on the level of 50 mgNH4+/dm3. During the reaction time, organic carbon compounds oxidation by activated sludge and intracellular poly-p-hydroxybutyrate (PHB) accumulation were observed. Under aerobic conditions and at low COD/N ratio - 3 in wastewater, activated sludge used accumulated polymer as endogenous carbon source for denitrification. The obtained results show that poly-p-hydroxybutyrate (PHB) synthesis is possible under fully aerobic conditions and at low COD/N ratio.
Relation:Biotechnologia, vol.68, 1 (2005)-.
Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Format: Resource Identifier: Source:Library of Institute of Bioorganic Chemistry PAS
Language: Language of abstract: Temporal coverage: Rights:Creative Commons Attribution BY-SA 4.0 license
Terms of use: Digitizing institution:Institute of Bioorganic Chemistry of the Polish Academy of Science
Original in:Institute of Bioorganic Chemistry of the Polish Academy of Science
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