TY - GEN
T1 - Short term effect of carbon source to phosphorus release in enhanced biological phosphorus removal process
AU - Hou, Hongxun
AU - Wang, Shuying
AU - Peng, Yongzhen
AU - Wang, Gan
AU - Yuan, Zhiguo
AU - Wang, Yingzhe
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2008
Y1 - 2008
N2 - Phosphorus release insufficiency usually is the main reason of the degradation in enhanced biological phosphorus removal (EBPR) process. Anaerobic-anoxic-aerobic (A2/O) oxidation ditch (OD) process treating the municipal wastewater combined with batch test. Based on the EBPR stabilization of the OD system, the activated sludge of SBR was taken from the aerobic zone of the OD, phosphorus release after acetate added, anoxic phosphorus uptake and denitrification proceeding at different carbon sources was studied. The effluent activated sludge of the aerobic zone of the anaerobic-anoxic-aerobic oxidation ditch process was adapted. 5 kinds of carbon source such as acetate, propionate, glucose, ethanol and methanol were used. The main batch test processed though batch test with 10L reactor. The results indicated that: (1) In anaerobic conditions, PAOs released P rapidly with acetate or propionate acting as carbon sources, specific P release rate was 290.5mgP/(gVSS·d) and 236.7mgP/(gVSS·d) respectively. However, P released slowly when glucose, ethanol or methanol acting as carbon source, the specific P release rate was 49.4mgP/(gVSS·d), 38.8mgP/(gVSS·d) and 8.9 mgP/(gVSS·d) respectively. (2) Whereas in anoxic conditions, P release rate was almost the same to in the anaerobic conditions if acetate or propionate act as carbon sources. But P seldom release with glucose, ethanol or methanol acting as carbon source in anoxic conditions. (3) PAOs utilized NO 3- to uptake P after P-release, if original NO 3- was high enough, when acetate acts as carbon source.
AB - Phosphorus release insufficiency usually is the main reason of the degradation in enhanced biological phosphorus removal (EBPR) process. Anaerobic-anoxic-aerobic (A2/O) oxidation ditch (OD) process treating the municipal wastewater combined with batch test. Based on the EBPR stabilization of the OD system, the activated sludge of SBR was taken from the aerobic zone of the OD, phosphorus release after acetate added, anoxic phosphorus uptake and denitrification proceeding at different carbon sources was studied. The effluent activated sludge of the aerobic zone of the anaerobic-anoxic-aerobic oxidation ditch process was adapted. 5 kinds of carbon source such as acetate, propionate, glucose, ethanol and methanol were used. The main batch test processed though batch test with 10L reactor. The results indicated that: (1) In anaerobic conditions, PAOs released P rapidly with acetate or propionate acting as carbon sources, specific P release rate was 290.5mgP/(gVSS·d) and 236.7mgP/(gVSS·d) respectively. However, P released slowly when glucose, ethanol or methanol acting as carbon source, the specific P release rate was 49.4mgP/(gVSS·d), 38.8mgP/(gVSS·d) and 8.9 mgP/(gVSS·d) respectively. (2) Whereas in anoxic conditions, P release rate was almost the same to in the anaerobic conditions if acetate or propionate act as carbon sources. But P seldom release with glucose, ethanol or methanol acting as carbon source in anoxic conditions. (3) PAOs utilized NO 3- to uptake P after P-release, if original NO 3- was high enough, when acetate acts as carbon source.
KW - Anaerobic phosphate release
KW - Carbon source
KW - Enhanced biological phosphorus removal (EBPR)
KW - Nitrate
KW - PAOs
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M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9783000246067
T3 - Proceedings of the 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer
SP - 339
EP - 344
BT - Proceedings of the 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer
T2 - 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer
Y2 - 5 June 2008 through 6 June 2008
ER -
