3354022
doi
10.5281/zenodo.3354022
oai:zenodo.org:3354022
user-njuwater
user-eu
Wen-Tao Li
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Shi Cheng
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Ya-Ping Wu
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Ji Wu
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Yan Li
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Yang Pan
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Zong-Li Huo
Jiangsu Provincial Center for Disease Control and Prevention
Ji-Chun Wu
State Key Laboratory of Surficial Geochemistry Ministry of Education
Xian-Chuan Xie
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Gregory V. Korshin
Department of Civil and Environmental Engineering, University of Washington
Ai-Min Li
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Wen-Tao Li
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
Developing surrogate indicators for predicting suppression of halophenols formation potential and abatement of estrogenic activity during ozonation of water and wastewater
Yu Huang
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
doi:10.5281/zenodo.3353957
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
<p>This study focused on developing surrogate indicators for predicting oxidation of phenolic groups in dissolved organic matter (DOM), suppression of halophenols’ formation potential and abatement of estrogenic activity during ozonation of water and wastewater. The evolution of pH-dependent differential absorbance spectra suggests that O<sub>3</sub> preferentially reacts with the DOM phenolic moieties and less so with the aromatic carboxylic groups with increasing O<sub>3</sub>/DOC ratios and changes of UV absorbance and fluorescence. When ozonation used as pretreatment, the formation of halophenols in subsequent chlorination decreased linearly with increasing O<sub>3</sub> doses or changes of UV absorbance until it reached 85% suppression of the halophenols’ formation from unaltered DOM. The thresholds of decreases of UVA254, UVA280 and humic-like fluorescence corresponding to 85% suppression of halophenols’ formation were in the range of 25%~30%, 30%~35% and 30%~45%, respectively. Pre-ozonation also showed a moderate suppression of haloacetic acids (HAAs) formation potentials, ≤26.5% for SR_NOM and ≤31.5% for Yangtze River at applied O<sub>3</sub> doses. Measurement of changes of estrogenic activity during ozonation of water and wastewater showed that to attain a >90% abatement of estrogenic activity, the corresponding thresholds of decreases of UVA254, UVA280 and humic-like fluorescence were ~30%, ~40%, and ~70%, respectively. Bromate formation was also suppressed to below 10 μg/L before these thresholds. This study suggests that optimal ozonation conditions and a balance between control of disinfection byproducts (halophenols, HAAs and bromate) and elimination of estrogenic activity can be reached based on online data.</p>
Zenodo
2019-09-15
info:eu-repo/semantics/article
3354021
user-njuwater
user-eu
award_title=DevelopMent AnD application of integrated technological and management solutions FOR wasteWATER treatment and efficient reuse in agriculture tailored to the needs of Mediterranean African Countries; award_number=688320; award_identifiers_scheme=url; award_identifiers_identifier=https://cordis.europa.eu/projects/688320; funder_id=00k4n6c32; funder_name=European Commission;
1622341242.664599
1871873
md5:1b8e636d28b7e2630873247240e2ef10
https://zenodo.org/records/3354022/files/NJU_2019_Water Research.pdf.pdf
3869088
md5:d8957cd8d3612460abf389d638d17d6b
https://zenodo.org/records/3354022/files/NJU_2019_Water Research_Supporting Information.docx.docx
public
10.5281/zenodo.3353957
Is supplemented by
doi
10.5281/zenodo.3354021
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doi