TY - JOUR
T1 - Effect of Mg/Ca molar ratios on characteristics of anaerobic-anoxic denitrifying dephosphatation
AU - Tian, W. D.
AU - Ma, C.
AU - Lin, Y.
AU - Ran, Z. L.
PY - 2017
Y1 - 2017
N2 - In this study, the effect of three Mg/Ca molar ratios (5.0, 3.8 and 1.7) on denitrifying phosphate removal performance, biomass morphology, and Extracellular Polymeric Substances (EPS) were examined. Results showed that when the influent Mg/Ca molar ratio was 3.8, the anaerobic-anoxic EBPR performed complete phosphate removal. The microbial bacterial population was a mixed culture comprised of 81 ± 3% DPAO and 13 ± 2% denitrifying glycogen accumulating organisms (DGAO). A higher influent Mg/Ca molar ratio (5.0) had a distinct impact on phosphate removal, biomass morphology, and EPS. This probably induced the deterioration of the anaerobic-anoxic Enhanced Biological Phosphorus Removal (EBPR). The results of this study may inform the proper operation of an anaerobic-anoxic EBPR, and contribute to its application in the real world.
AB - In this study, the effect of three Mg/Ca molar ratios (5.0, 3.8 and 1.7) on denitrifying phosphate removal performance, biomass morphology, and Extracellular Polymeric Substances (EPS) were examined. Results showed that when the influent Mg/Ca molar ratio was 3.8, the anaerobic-anoxic EBPR performed complete phosphate removal. The microbial bacterial population was a mixed culture comprised of 81 ± 3% DPAO and 13 ± 2% denitrifying glycogen accumulating organisms (DGAO). A higher influent Mg/Ca molar ratio (5.0) had a distinct impact on phosphate removal, biomass morphology, and EPS. This probably induced the deterioration of the anaerobic-anoxic Enhanced Biological Phosphorus Removal (EBPR). The results of this study may inform the proper operation of an anaerobic-anoxic EBPR, and contribute to its application in the real world.
KW - Anaerobic-anoxic denitrifying dephosphatation
KW - Enhanced Biological Phosphorus Removal (EBPR)
KW - Extracellular Polymeric Substances (EPS)
KW - Mg/Ca molar ratios
UR - http://www.scopus.com/inward/record.url?scp=85012014006&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2017.01.063
DO - 10.1016/j.biortech.2017.01.063
M3 - Article
C2 - 28202304
AN - SCOPUS:85012014006
SN - 0960-8524
VL - 240
SP - 94
EP - 97
JO - Bioresource Technology
JF - Bioresource Technology
ER -
