TY - JOUR
T1 - A comprehensive method for the evaluation of biological nutrient removal potential of wastewater treatment plants
AU - Zhou, Zhen
AU - Xing, Can
AU - Wu, Zhichao
AU - Tang, Jianguo
AU - Zhang, Aiping
AU - An, Ying
N1 - Publisher Copyright:
© 2013, © 2013 Balaban Desalination Publications. All rights reserved.
PY - 2015/3/13
Y1 - 2015/3/13
N2 - An evaluation method based on the supply and demand of carbon source in the biological nutrient removal (BNR) process, combined with an index of difficulty of nutrient removal (DNR), was put forward to achieve comprehensive assessment and analysis of the BNR potential of wastewater treatment plants (WWTPs). Twenty-five full-scale municipal WWTPs with different BNR processes were evaluated over a period of 12 months in Shanghai (China). Statistical analysis results showed that the DNR index had significant positive correlation (r > 0.790, p < 0.01) with total nitrogen, total phosphorus concentrations in the effluent, and yielded higher correlation coefficient with BNR efficiency than the C/N and C/P ratios that were conventionally used to estimate carbon source supply conditions. According to the WWTPs ranking by DNR evaluation, the number of WWTPs with low, medium, high, and extremely high DNR level was 8, 10, 6, and 1 among the 25 WWTPs, respectively. The developed method can evaluate and analyze the BNR potential scientifically and objectively, and the ranking results can be used to guide level-to-level management, upgrading, and optimization of WWTPs under different discharge standards.
AB - An evaluation method based on the supply and demand of carbon source in the biological nutrient removal (BNR) process, combined with an index of difficulty of nutrient removal (DNR), was put forward to achieve comprehensive assessment and analysis of the BNR potential of wastewater treatment plants (WWTPs). Twenty-five full-scale municipal WWTPs with different BNR processes were evaluated over a period of 12 months in Shanghai (China). Statistical analysis results showed that the DNR index had significant positive correlation (r > 0.790, p < 0.01) with total nitrogen, total phosphorus concentrations in the effluent, and yielded higher correlation coefficient with BNR efficiency than the C/N and C/P ratios that were conventionally used to estimate carbon source supply conditions. According to the WWTPs ranking by DNR evaluation, the number of WWTPs with low, medium, high, and extremely high DNR level was 8, 10, 6, and 1 among the 25 WWTPs, respectively. The developed method can evaluate and analyze the BNR potential scientifically and objectively, and the ranking results can be used to guide level-to-level management, upgrading, and optimization of WWTPs under different discharge standards.
KW - Evaluation
KW - Management
KW - Nutrient removal
KW - Potential
KW - Wastewater treatment
UR - https://www.scopus.com/pages/publications/84923607656
U2 - 10.1080/19443994.2013.870064
DO - 10.1080/19443994.2013.870064
M3 - 文章
AN - SCOPUS:84923607656
SN - 1944-3994
VL - 53
SP - 2931
EP - 2938
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
IS - 11
ER -