TY - GEN
T1 - Nitrogen transformation in two-phase anaerobic system of monosodium glutamate wastewater treatment
AU - Wang, Wei
AU - Han, Hongjun
AU - He, Chunhua
PY - 2009
Y1 - 2009
N2 - The present work was to investigate the nitrogen-existing forms of monosodium glutamate wastewater and the effects of HRT, organic loading and biomass on the transformation of nitrogen in the full-scale operation of two-phase anaerobic process. The ratio of ammoniacal nitrogen (NH4 +-N) to total nitrogen (TN) varied from 0.5 in acidogenic phase reactor (Phase I) to 0.85 in methanogenic phase(Phase II), which indicated that ammonium had already become the leading form in Phase II. The ammonia-releasing amount varied greatly at different hydraulic retention time (HRT), especially with the lower HRT of 15h in Phase I and 50h in Phase II, which the ammonia-releasing increased as the decreased HRT on the day 70 to 90. Calculated the removal rate of COD and TN in the different heights of the methanogenic reactor, the values of CODrem/TNrem obtained from the height of 3.0-5.0m and 5.0-10.0m were 22.2:1 and 12.0:1 respectively. The reduction of TN concentration in the height of 5.0-10.0m was 244.5mg/l that was almost 45 percents of the total reduction in Phase II, but the mean sludge concentration of 2698.7mg/l in the height of 5.0-10.0m was lower than the mean sludge concentration of 8943.3mg/l in the height of 3.0-5.0m. The nitrogen imbalance was occurred in the post section of the methanogenic reactor.
AB - The present work was to investigate the nitrogen-existing forms of monosodium glutamate wastewater and the effects of HRT, organic loading and biomass on the transformation of nitrogen in the full-scale operation of two-phase anaerobic process. The ratio of ammoniacal nitrogen (NH4 +-N) to total nitrogen (TN) varied from 0.5 in acidogenic phase reactor (Phase I) to 0.85 in methanogenic phase(Phase II), which indicated that ammonium had already become the leading form in Phase II. The ammonia-releasing amount varied greatly at different hydraulic retention time (HRT), especially with the lower HRT of 15h in Phase I and 50h in Phase II, which the ammonia-releasing increased as the decreased HRT on the day 70 to 90. Calculated the removal rate of COD and TN in the different heights of the methanogenic reactor, the values of CODrem/TNrem obtained from the height of 3.0-5.0m and 5.0-10.0m were 22.2:1 and 12.0:1 respectively. The reduction of TN concentration in the height of 5.0-10.0m was 244.5mg/l that was almost 45 percents of the total reduction in Phase II, but the mean sludge concentration of 2698.7mg/l in the height of 5.0-10.0m was lower than the mean sludge concentration of 8943.3mg/l in the height of 3.0-5.0m. The nitrogen imbalance was occurred in the post section of the methanogenic reactor.
KW - Monosodium glutamate wastewater
KW - Nitrogen
KW - Two-phase anaerobic process
UR - https://www.scopus.com/pages/publications/72149099630
U2 - 10.1061/41073(361)224
DO - 10.1061/41073(361)224
M3 - 会议稿件
AN - SCOPUS:72149099630
SN - 9780784410738
T3 - Proc. International Conference on Pipelines and Trenchless Technology 2009, ICPTT 2009: Advances and Experiences with Pipelines and Trenchless Technology for Water, Sewer, Gas, and Oil Applications
SP - 2110
EP - 2121
BT - Proc. International Conference on Pipelines and Trenchless Technology 2009, ICPTT 2009
T2 - International Conference on Pipelines and Trenchless Technology 2009, ICPTT 2009: Advances and Experiences with Pipelines and Trenchless Technology for Water, Sewer, Gas, and Oil Applications
Y2 - 18 October 2009 through 21 October 2009
ER -