Diclofenac inhibited the biological phosphorus removal: Performance and mechanism

被引：86
作者：
Zhao, Jianwei [1 ,2 ]
Xin, Mingxue [1 ,2 ]
Zhang, Jing [1 ,2 ]
Sun, Yingjie [1 ,2 ]
Luo, Siyi [1 ]
Wang, Huawei [1 ,2 ]
Wang, Yanan [1 ,2 ]
Bi, Xuejun [1 ]
机构：
[1] Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China
[2] Qingdao Solid Waste Pollut Control & Resource Eng, Qingdao 266033, Peoples R China
来源：
CHEMOSPHERE | 2020年 / 243卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Diclofenac; Enhanced biological phosphorus removal; Polyhydroxyalkanoates; Oxic phosphorus uptake; EXTRACELLULAR POLYMERIC SUBSTANCES; CHAIN FATTY-ACIDS; GLYCOGEN-ACCUMULATING ORGANISMS; PEROXIDE PRESOAKING PRIOR; WASTE-WATER; ANAEROBIC FERMENTATION; MICROBIAL COMMUNITY; AQUATIC ENVIRONMENT; NUTRIENT REMOVAL; METABOLIC MODEL;
D O I：
10.1016/j.chemosphere.2019.125380
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This work aims to evaluate the effect of new contaminant diclofenac (DCF) in sewage on the performance of Enhanced Biological Phosphorus Removal (EBPR) and its mechanism. The results showed that low-level DCF had no significant effect on EBPR. However, when the concentration of DCF was 2.0 mg/L, the removal efficiencies of chemical oxygen demand (COD), NHS4+-N and soluble orthophosphate (SOP) decreased significantly to 71.2 +/- 4.2%, 78.6 +/- 2.9%, and 643 +/- 4.2%, respectively. Mechanisms revealed that DCF promoted the ratio of protein to polysaccharide in activated sludge extracellular polymers and inhibited anaerobic phosphorus release and oxic phosphorus uptake. Intracellular polymer analysis showed that when the DCF content was 2.0 mg/I, the maximum content of polyhydroxyalkanoates (PHA) was only 2.5 +/- 0.4 mmol-C/g VSS, which was significantly lower than that in the blank. Analysis of key enzyme activities indicated that the presence of DCF reduced the activities of exopolyphosphatase and polyphosphate kinase. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页数：8
相关论文
共 45 条
[1]  
[Anonymous], 2006, STANDARD METHODS EXA, DOI DOI 10.5860/CHOICE.37-2792
[2]   Diclofenac in the marine environment: A review of its occurrence and effects [J].
Bonnefille, Benilde ;
Gomez, Elena ;
Courant, Frederique ;
Escande, Aurelie ;
Fenet, Helene .
MARINE POLLUTION BULLETIN, 2018, 131 :496-506
[3]   Enhancement of post-anoxic denitrification for biological nutrient removal: effect of different carbon sources [J].
Chen, Hong-bo ;
Wang, Dong-bo ;
Li, Xiao-ming ;
Yang, Qi ;
Zeng, Guang-ming .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2015, 22 (08) :5887-5894
[4]   Effects of chlortetracycline on biological nutrient removal from wastewater [J].
Chen, Hongbo ;
Zhou, Yefeng ;
Hu, Xiayi ;
Tian, Ke ;
Zhang, Junfeng .
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 647 :268-274
[5]   Size dependent and reactive oxygen species related nanosilver toxicity to nitrifying bacteria [J].
Choi, Okkyoung ;
Hu, Zhiqiang .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (12) :4583-4588
[6]   Exposure of marine mussels to diclofenac: modulation of prostaglandin biosynthesis [J].
Courant, Frederique ;
Arpin-Pont, Lauren ;
Bonnefille, Benilde ;
Vacher, Sebastien ;
Picot-Groz, Marina ;
Gomez, Elena ;
Fenet, Helene .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2018, 25 (07) :6087-6094
[7]   DICLOFENAC IN FISH: BLOOD PLASMA LEVELS SIMILAR TO HUMAN THERAPEUTIC LEVELS AFFECT GLOBAL HEPATIC GENE EXPRESSION [J].
Cuklev, Filip ;
Kristiansson, Erik ;
Fick, Jerker ;
Asker, Noomi ;
Forlin, Lars ;
Larsson, D. G. Joakim .
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2011, 30 (09) :2126-2134
[8]   A metabolic model for acetate uptake under anaerobic conditions by glycogen accumulating organisms: Stoichiometry, kinetics, and the effect of pH [J].
Filipe, CDM ;
Daigger, GT ;
Grady, CPL .
BIOTECHNOLOGY AND BIOENGINEERING, 2001, 76 (01) :17-31
[9]   Occurrence, fate, and removal of pharmaceutical residues in the aquatic environment: a review of recent research data [J].
Heberer, T .
TOXICOLOGY LETTERS, 2002, 131 (1-2) :5-17
[10]   The role of extracellular polymeric substances in the toxicity response of activated sludge bacteria to chemical toxins [J].
Henriques, Ines D. S. ;
Love, Nancy G. .
WATER RESEARCH, 2007, 41 (18) :4177-4185
12345