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Impacts of Comorbidity and Mental Shock on Organic Micropollutants in Surface Water During and After the First Wave of COVID-19 Pandemic in Wuhan (2019–2021), China

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engineering 2024年第6期37卷 40-48页

作者： Jian Zhao Jin Kang Xiaofeng Cao Rui Bian Gang Liu Shengchao Hu Xinghua Wu Chong Li Dianchang Wang Weixiao Qi Cunrui Huang Huijuan Liu Jiuhui Qu Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Hubei Provincial Research Institute of environmental Science Wuhan 430072China Key Laboratory of Drinking Water Science and Technology Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China sanitary engineering Department of Water ManagementFaculty of Civil Engineering and GeosciencesDelft University of TechnologyDelft 2600 GAThe Netherlands China Three Gorges Corporation Wuhan 430010China Vanke School of Public Health Tsinghua UniversityBeijing 100084China

The first pandemic wave of coronavirus disease 2019(COVID-19)induced a considerable increase in several antivirals and antibiotics in surface *** common symptoms of COVID-19 are viral and bacterial infections,while comorbidities(e.g.,hypertension and diabetes)and mental shock(e.g.,insomnia and anxiety)are ***,little is known about the long-term impacts of comorbidities and mental shock on organic micropollutants(OMPs)in surface ***,we monitored 114 OMPs in surface water and wastewater treatment plants(WWTPs)in Wuhan,China,between 2019 and *** pandemic-induced OMP pollution in surface water was confirmed by significant increases in 26 OMP *** increases in four antihypertensives and one diabetic drug suggest that the treatment of comorbidities may induce OMP ***,cotinine(a metabolite of nicotine)increased 155 times to 187 ngL1,which might be associated with increased ***,the increases in zolpidem and sulpiride might be the result of worsened insomnia and ***,it is reasonable to note that mental-health protecting drugs/behavior also contributed to OMP *** the observed OMPs,telmisartan,lopinavir,and ritonavir were associated with significantly higher ecological risks because of their limited WWTP-removal rate and high *** study provides new insights into the effects of comorbidities and mental shock on OMPs in surface water during a pandemic and highlights the need to monitor the fate of related pharmaceuticals in the aquatic environment and to improve their removal efficiencies in WWTPs。

关键词： Coronavirus disease 2019 Comorbidities Mental shock Micropollutant Surface water

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Singlet oxygen-dominated peroxymonosulfate activation by layered crednerite for organic pollutants degradation in high salinity wastewater

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Journal of environmental Sciences 2024年第1期135卷 86-96页

作者： Chengji Sui Zixuan Nie Huan Liu Grzegorz Boczkaj Weizhen Liu Lingshuai Kong Jinhua Zhan Key Laboratory for Colloid&Interface Chemistry of Education Ministry Department of ChemistryShandong UniversityJinan 250100China School of Environment and Energy Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and RecyclingSouth China University of TechnologyGuangzhou 510006China Gdansk University of Technology Faculty of Civil and Environmental EngineeringDepartment of Sanitary EngineeringG.Narutowicza St.11/1280-233 GdanskPoland EkoTech Center Gdansk University of TechnologyG.Narutowicza St.11/1280-233 GdanskPoland

Advanced oxidation processes have been widely studied for organic pollutants treatment in water,but the degradation performance of radical-dominated pathway was severely inhibited by the side reactions between the anions and radicals,especially in high salinity ***,a singlet oxygen(^(1)O_(2))-dominated non-radical process was developed for organic pollutants degradation in high salinity wastewater,with layered crednerite(CuMnO_(2))as catalysts and peroxymonosulfate(PMS)as *** on the experiments and density functional theory calculations,^(1)O_(2)was the dominating reactive species and the constructed Cu-O-Mn with electron-deficient Mn captured electron from PMS promoting the generation of^(1)O_(2).The rapid degradation of bisphenol A(BPA)was achieved by CuMnO_(2)/PMS system,which was 5-fold and 21-fold higher than that in Mn_(2)O_(3)/PMS system and Cu_(2)O/PMS *** CuMnO_(2)/PMS system shown prominent BPA removal performance under high salinity conditions,prominent PMS utilization efficiency,outstanding total organic carbon removal rate,wide range of applicable pH and good *** work unveiled that the^(1)O_(2)-dominated non-radical process of CuMnO_(2)/PMS system overcame the inhibitory effect of anions in high salinity conditions,which provided a promising technique to remove organic pollutants from high saline wastewater.

关键词： Singlet oxygen Non-radical process High salinity Mixed metal oxides Wastewater treatment

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新冠病毒肺炎第一波疫情大流行期间和之后（2019—2021年）合并症和心理冲击对武汉地表水中微量有机污染物的影响（英文）

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engineering 2024年第6期 40-48页

作者：赵健康瑾曹晓峰边睿刘刚胡胜超吴兴华李翀王殿常齐维晓黄存瑞刘会娟曲久辉 Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Hubei Provincial Research Institute of environmental Science Key Laboratory of Drinking Water Science and Technology Research Centre for Eco-Environmental Sciences Chinese Academy of Sciences sanitary engineering Department of Water Management Faculty of Civil Engineering and Geosciences Delft University of Technology China Three Gorges Corporation Vanke School of Public Health Tsinghua University

The first pandemic wave of coronavirus disease 2019（COVID-19） induced a considerable increase in several antivirals and antibiotics in surface water. The common symptoms of COVID-19 are viral and bacterial infections, while comorbidities（e.g., hypertension and diabetes） and mental shock（e.g., insomnia and anxiety） are nonnegligible. Nevertheless, little is known about the long-term impacts of comorbidities and mental shock on organic micropollutants（OMPs） in surface waters. Herein, we monitored 114OMPs in surface water and wastewater treatment plants（WWTPs） in Wuhan, China, between 2019and 2021. The pandemic-induced OMP pollution in surface water was confirmed by significant increases in 26 OMP concentrations. Significant increases in four antihypertensives and one diabetic drug suggest that the treatment of comorbidities may induce OMP pollution. Notably, cotinine（a metabolite of nicotine） increased 155 times to 187 ng.L-1, which might be associated with increased smoking. Additionally,the increases in zolpidem and sulpiride might be the result of worsened insomnia and depression. Hence,it is reasonable to note that mental-health protecting drugs/behavior also contributed to OMP *** the observed OMPs, telmisartan, lopinavir, and ritonavir were associated with significantly higher ecological risks because of their limited WWTP-removal rate and high ecotoxicity. This study provides new insights into the effects of comorbidities and mental shock on OMPs in surface water during a pandemic and highlights the need to monitor the fate of related pharmaceuticals in the aquatic environment and to improve their removal efficiencies in WWTPs.

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Interference of iron as a coagulant on MIB removal by powdered activated carbon adsorption for low turbidity waters

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Journal of environmental Sciences 2013年第8期25卷 1575-1582页

作者： Ferreira Filho SIDNEY SECKLER Marchetto MARGARIDA Alves Laganaro ROSEMEIRE Department of Hydraulic and environmental engineering Polytechnic School University of Sao Paulo Department of sanitary and environmental engineering University of Mato Grosso Companhia de Saneamento Basico do Estado de So Paulo(SABESP)

Powered activated carbon （PAC） is widely used in water treatment plants to minimize odors in drinking water. This study investigated the removal of 2-methylisoborneol （MIB） by PAC adsorption, combined with coagulation using iron as a coagulant. The adsorption and coagulation process were studied through different case scenarios of jar tests. The analysis evaluated the effect of PAC dosing in the liquid phase immediately before or after the coagulant addition. Ferric sulphate was used as the coagulant with dosages from 10 to 30 mg/L, and PAC dosages varied from 10 to 40 mg/L. The highest MIB removal efficiency （about 70%） was achieved without the coagulant addition and with the highest PAC dosage （40 mg/L）. Lower MIB removal efficiencies were observed in the presence of coagulant, showing a clear interference of the iron precipitate or coagulant in the adsorption process. The degree of interference of the coagulation process in the MIB removal was proportional to the ratio of ferric hydroxide mass to the PAC mass. For both cases of PAC dosing, upstream and downstream of the coagulant injection point, the MIB removal efficiency was similar. However, MIB removal efficiency was 15% lower when compared with experiments without the coagulant application. This interference in the MIB adsorption occurs potentially because the coagulant coats the surface of the carbon and interferes with the MIB coming in contact with the carbon＇s surface and pores. This constraint requires an increase of the PAC dosage to provide the same efficiency observed without coagulation.

关键词： adsorption 2-methylisoborneol (MIB) coagulation activated carbon

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GREEN SYNTHESIS OF ANTIBACTERIAL CHITOSAN FILMS LOADED WITH SILVER NANOPARTICLES

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Chinese Journal of Polymer Science 2013年第7期31卷 984-993页

作者： Neama A. Reiad Omar E. Abdel Salam Ehab F. Abadir Farid A. Harraz sanitary & environmental engineering Department Housing & Building National Research Center Department of Chemical engineering Faculty of EngineeringCairo University Advanced Materials Technology Department Central Metallurgical R & D Institute

An eco-friendly chemical reduction method was successfully used for the preparation of chitosan （CTS） composite films loaded with silver nanoparticles （AgNPs） by self assembly method using poly（ethylene glycol） as both reducing and stabilizing agent. UV-Vis spectra of the prepared chitosan loaded silver nanoparticles （CTSLAg） films reveal that full reduction of silver ions to silver nanoparticles takes place at 90 ℃. The effect of reaction conditions on the silver nanoparticles formation was investigated using UV-Vis spectrophotometer. The morphology of the films was tested by scanning electron microscopy （SEM）. The DSC curves showed that the CTSLAg film had a favorable compatibility and heat stability. AgNPs were confirmed by XRD and UV-Vis spectroscopy. The TEM findings revealed that the silver nanoparticles synthesized were spherical in shape with uniform dispersal, and by increasing CTS：PEG ratio larger silver nanoparticles could be obtained. The results of antibacterial study reveal that the prepared nanoeomposite films exhibited potential inhibition.

关键词： Chitosan Silver nanoparticles Antibacterial activity.

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An autotrophic nitrogen removal process:Short-cut nitrification combined with ANAMMOX for treating diluted effluent from an UASB reactor fed by landfill leachate

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Journal of environmental Sciences 2010年第5期22卷 777-783页

作者： Jie Liu Jian'e Zuo Tang Yang Shuquan Zhu Sulin Kuang Kaijun Wang environmental Simulation and Pollution Control State Key Joint Laboratory Department of Environmental Science and Engineering Tsinghua University Beifing 100084 China School of Chemical and environmental engineering China University of Mining and Technology (Beifing) Beifing 100083 China Liulitun sanitary Landfill Beijing 100094 China

A combined process consisting of a short-cut nitrification （SN） reactor and an anaerobic ammonium oxidation upflow anaerobic sludge bed （ANAMMOX） reactor was developed to treat the diluted effluent from an upflow anaerobic sludge bed （UASB） reactor treating high ammonium municipal landfill *** SN process was performed in an aerated upflow sludge bed （AUSB） reactor （working volume 3.05 L）,treating about 50% of the diluted raw *** ammonium removal efficiency and the ratio of NO 2 N to NOx-N in the effluent were both higher than 80%,at a maximum nitrogen loading rate of 1.47 kg/（m 3 ·day）.The ANAMMOX process was performed in an UASB reactor （working volume 8.5 L）,using the mix of SN reactor effluent and diluted raw wastewater at a ratio of 1：*** ammonium and nitrite removal efficiency reached over 93% and 95%,respectively,after 70-day continuous operation,at a maximum total nitrogen loading rate of 0.91 kg/（m 3 ·day）,suggesting a successful operation of the combined *** average nitrogen loading rate of the combined system was 0.56 kg/（m 3 ·day）,with an average total inorganic nitrogen removal efficiency 87%.The nitrogen in the effluent was mostly *** results provided important evidence for the possibility of applying SN-ANAMMOX after UASB reactor to treat municipal landfill leachate.

关键词： landfill leachate short-cut nitrification anaerobic ammonia oxidation autotrophic nitrogen removal

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Green synthesis of bentonite-supported iron nanoparticles as a heterogeneous Fenton-like catalyst:Kinetics of decolorization of reactive blue 238 dye

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Water Science and engineering 2020年第4期13卷 286-298页

作者： Ahmed Khudhair Hassan Ghayda Yaseen Al-Kindi Dalal Ghanim Environment and Water Directorate Ministry of Science and TechnologyBaghdad 10070Iraq sanitary and environmental Branch Civil Engineering DepartmentUniversity of TechnologyBaghdad 10009Iraq

This study aimed to synthesize green tea nano zero-valent iron(GT-NZVI)and bentonite-supported green tea nano zero-valent iron(BGT-NZVI)nanoparticles using green tea extracts in an environmentally sustainable *** was used as a support material because it disperses and stabilizes GT-NZVI,and it helps to reduce the cost,increase the adsorption capacity of GT-NZVI,and decrease the optimum amount of GT-NZVI used in Fenton-like oxidation.A scanning electron microscope,an atomic force microscope,and a Fourier transform infrared spectroscope were used to characterize GT-NZVI and B-GT-NZVI,while the zeta potential was measured to evaluate the stability of iron *** decolorization kinetics of reactive blue 238(RB 238)dye in the aqueous phase in the Fenton-like oxidation process were investigated as *** effects of various experimental conditions such as reaction time,dosages of catalysts,concentration of H2O2,temperature,addition of inorganic salts,and other parameters were *** results show that the oxidative degradation efficiencies of RB 238 dye catalyzed by GT-NZVI and B-GT-NZVI were 93.5%and 96.2%,respectively,at the optimum reaction conditions as follows:c(H2O2)¼5 mmol/L,r(GT-NZVI)¼0.5 g/L or r(B-GT-NZVI)¼0.5 g/L,c(RB 238 dye)¼0.05 mmol/L,and pH¼2.5 at 180 *** best catalytic performance was exhibited when B-GT-NZVI was *** kinetic models were employed,and the second-order model was found to be the best model representing the experimental kinetic data of RB 238 *** value of activation energy decreased from 38.22 kJ/mol for GT-NZVI to 14.13 kJ/mol for *** indicates that the effect of B-GT-NZVI in decreasing the energy barrier is more pronounced than that of the GT-NZVI catalyst,leading to improved Fenton-like oxidation processes.©2020 Hohai *** and hosting by Elsevier *** is an open access article under the CC BY-NC-ND license(http://***/licenses/by-nc-nd/4.0/).

关键词： Green synthesis Bentonite-supported iron nanoparticles Azo dye Fenton-like process Kinetics

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Preferential binding between intracellular organic matters and Al_(13) polymer to enhance coagulation performance

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Journal of environmental Sciences 2019年第2期31卷 1-11页

作者： Ruiping Liu Tingting Guo Min Ma Mingquan Yan Jing Qi Chengzhi Hu Gang Liu Huijuan Liu Jiuhui Qu Walter van der Meer Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of Sciences University of Chinese Academy of Sciences Beijing University of Technology Beijing Waterworks Group Department of environmental engineering Peking University sanitary engineering Department of Water ManagementFaculty of Civil Engineering and GeosciencesDelft University of Technology State Key Laboratory of environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of Sciences Science and Technology University of Twente

Coagulation is the best available method for removing intracellular organic matter(IOM),which is released from algae cells and is an important precursor to disinfection by-products in drinking water treatment. To gain insight into the best strategy to optimize IOM removal, the coagulation performance of two Al salts, i.e., aluminum chloride(AlCl_3) and polyaluminum chloride(PACl, containing 81.2% Al_(13)), was investigated to illuminate the effect of Al species distribution on IOM removal. PACl showed better removal efficiency than AlCl_3 with regard to the removal of turbidity and dissolved organic carbon(DOC), owing to the higher charge neutralization effect and greater stability of pre-formed Al_(13) species. High pressure size exclusion chromatography analysis indicated that the superiority of PACl in DOC removal could be ascribed to the higher binding affinity between Al_(13) polymer and the low and medium molecular weight(MW) fractions of IOM. The results of differential log-transformed absorbance at 254 and 350 nm indicated more significant formation of complexes between AlCl_3 and IOM, which benefits the removal of tryptophan-like proteins thereafter. Additionally,PACl showed more significant superiority compared to AlCl_3 in the removal of <5 kD a and hydrophilic fractions, which are widely viewed as the most difficult to remove by *** study provides insight into the interactions between Al species and IOM, and advances the optimization of coagulation for the removal of IOM in eutrophic water.

关键词： Intracellular organic matter Coagulation Polyaluminum chloride Molecular weight distribution Hydrophilic fraction

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A novel approach to estimate and control denitrification performance in activated sludge systems with respirogram technology

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Journal of environmental Sciences 2022年第11期34卷 112-121页

作者： Zhihua Li Yali Zhang Zhenyu Hang Meng Lu Haiguang Wang Xingdong Gao Ruina Zhang Key Laboratory of Northwest Water Resource Environment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China Shaanxi Key Laboratory of environmental engineering Xi’an University of Architecture and TechnologyXi’an 710055China Shanghai environmental&sanitary engineering Design Institute Co.Ltd. Shanghai 200232China

Respirogram technology has been widely applied for aerobic process, however, the response of respirogram to anoxic denitrification is still unclear. To reveal such response may help to design a new method for the evaluation of the performance of denitrification. The size distribution of flocs measured at different denitrification moments demonstrated a clear expansion of flocs triggered by denitrification, during which higher specific endogenous and quasi-endogenous respiration rates(SOUReand SOURq) were also observed. Furthermore,SOURqincreases exponentially with the specific denitrification rate(SDNR), suggesting that there should be a maximum SDNR in conventional activated sludge systems. Based on these findings, an index Rq/t, defined as the ratio of quasi-endogenous(OURq) to maximum respiration rate(OURt), is proposed to estimate the denitrification capacity that higher Rq/tindicates higher denitrification potential, which can be readily obtained without complex measurement or analysis, and it offers a novel and promising respirogram-based approach for denitrification estimation and control by taking measures to extend anoxic time to maintain its value at a high level within a certain range.

关键词： Denitrification Respirogram Activated sludge Oxygen uptake rate Biological nutrient removal

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News about Tap and Bottled Water: Can This Influence People’s Choices?

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Journal of environmental Protection 2012年第4期3卷 324-333页

作者： Josiane T. M. Queiroz Mark W. Rosenberg Léo Heller Andréa L. M. Zhouri Sara R. Silva departament of environmental and sanitary engineering Federal University Minas Gerais Brazil departament of environmental Technology Federal Institute Espírito Santo Brazil departament of Geography Queen’s University Kingston Canada departament of Sociology and Anthropology Federal University Minas Gerais Brazil

The pursuit of alternative safe water has increased dramatically the world trade in bottled water. Events happened in Canada which changed the population’s perception about the quality of tap water, despite all government efforts. Media has an important role to pass on information because there is value judgment in its reports. As a result, this study aims to present recent data from two Canadian newspapers of national circulation, which refer to tap water and bottled water. It used quantitative and qualitative data for this analysis. The study concludes that the media, taken into consideration, provides its readers with important information, but the information can also be ambiguous. Nevertheless, it arouses interest in further research about this subject matter and about protecting water resources.

关键词： Tap Water Bottled Water News Reports Water Protection

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