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control of Effluent Organic Matter, Cytotoxicity, and Disinfection Byproducts in Wastewater with Biological Anion Exchange Resins: Enhanced Performance through Skeleton Design

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environmental science & technology 2025年第22期59卷 2025 May 28页

作者： Xingqi Zhu Lu Jiang Ye-Chao Tian Yang Pan Wen-Tao Li Chendong Shuang Rong Ji Aimin Li State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210023 Jiangsu China.

Effluent organic matter (EfOM) in wastewater threatens ecosystems and drinking water safety via the urban water cycle. Biofiltration using adsorbents with dual adsorption-biodegradation functions, such as biological anion exchange resins (BAERs), offers a promising solution. Compared to biological activated carbon (BAC), BAERs' adjustable skeletons enable targeted EfOM removal. This study designed two BAERs with polystyrene (PS-AER) and magnetic polyacrylic (MPA-AER) skeletons and compared them with conventional polyacrylic BAER (PA-AER) and BACs. During 12 000-bed-volume field applications, BAERs demonstrated 1.7-2.6 and 1.6-2.6 times higher dissolved organic carbon (DOC) and UV removal rates than BACs. This efficacy stemmed from the high concentration of negatively charged components, which BAERs effectively attract. Furthermore, skeleton modifications improved DOC removal by 15.3-17.2% and UV removal by 7.3-18.2% for PS-AER and MPA-AER, compared to PA-AER. The MPA-AER's open pore structure enhanced diffusion of high molecular weight components, while PS-AER's enhanced hydrophobicity improved aromatic component removal. These structural changes also influenced the biological effects of BAERs. Notably, the enhanced performance of PS-AER and MPA-AER reduced wastewater cytotoxicity and controlled the production of disinfection byproducts. Overall, this study confirms the potential of BAERs in wastewater treatment and highlights strategies for performance enhancement through skeleton modification.

关键词： biological anion exchange resin disinfection byproducts (DBPs) effluent organic matter (EfOM) reclaimed wastewater wastewater

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Enhancing Methane Production and Interspecies Electron Transfer of Anaerobic Granular Sludge by the Immobilization of Magnetic Biochar

SSRN

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SSRN 2023年

作者： Zhuo, Meihui Quan, Xiangchun Yin, Ruoyu Lv, Kai State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing100875 China

Supplementation of conductive materials has been proved to be a promising approach for enhancing microbial interspecies electron transfer (IET) in anaerobic digestion systems. In this study, magnetic bamboo-based biochar synthesized at temperatures of 400–800 ºC via a ball milling/carbonization method was immobilized in mature anaerobic granular sludge (AGS), which aimed to enhance methane production by improving the IET process between syntrophic microbial communities in the inner AGS. Results showed that the immobilization of magnetic biochar in the inner AGS increased glucotrophic and acetotrophic methane production by 69.54–77.56% and 39.96–54.92%, respectively. Magnetic biochar prepared at 800 ºC possessed superior electron charge/discharge capacity (36.66 F/g) with more Fe serving as electroactive sites (0.37 g/g magnetic biochar), which showed the highest promotion of methane production of AGS. After immobilization with magnetic biochar, the conductivity of AGS increased by 52.13–87.32%. Furthermore, both the binding of magnetic biochar with extracellular polymeric substance (EPS) and the increase of riboflavin in EPS helped to increase the capacitance and decrease the electron transfer resistance of the EPS, which could support the establishment of an efficient IET process in the inner AGS. In addition, the immobilization of magnetic biochar could promote the production of volatile fatty acids by 15.36–22.50%. All these improvements may jointly lead to the enhanced methane production capacity of AGS. This study provided a fundamental understanding of the role of incorporated magnetic biochar in AGS in promoting anaerobic digestion performance. © 2023, The Authors. All rights reserved.

关键词： Anaerobic digestion

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Influence of NO_(x) on the activity of Pd/θ-Al_(2)O_(3) catalyst for methane oxidation: Alleviation of transient deactivation

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Journal of environmental Sciences 2022年第2期34卷 38-47页

作者： Chang Cui Yan Zhang Wenpo Shan Yunbo Yu Hong He State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Ningbo Research Center for Urban Environment Chinese Academy of SciencesNingbo 315800China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China

Alumina supported Pd catalyst(Pd/Al_(2)O_(3)) is active for complete oxidation of methane, while often suffers transient deactivation during the cold down process. Herein, heating and cooling cycle tests between 200 and 900 ℃ and isothermal experiments at 650 ℃ were conducted to investigate the influence of NO_(x) on transient deactivation of Pd/θ-Al_(2)O_(3) catalyst during the methane oxidation. It was found that the co-fed of NO alleviated transient deactivation in the cooling ramp from 800 to 500 ℃, which was resulted from the in situ formation of NO_(2) during the process of methane oxidation. Over the Pd/θ-Al_(2)O_(3), thermogravimetric analysis and O_(2) temperature programmed oxidation measurements confirmed that transient deactivation was due to the decomposition of Pd O particles and the hysteresis of Pd reoxidation, while the metal Pd entities were less active for methane oxidation than the Pd O ones. CO pulse chemisorption and scanning transmission electron microscopy characterizations rule out the NO_(2) effect on Pd size change. Powder X-ray diffraction and X-ray photoelectron spectroscopy characterizations were used to obtain palladium status of Pd/θ-Al_(2)O_(3) before and after reactions, indicating that in lean conditions at 650 ℃, the presence of NO_(2) increases the content of active Pd O on the catalyst surface, thus benefits methane oxidation. Homogeneous reaction between CH 4, O_(2), and NO_(x) may be partially responsible for the alleviation above 650 ℃. The interesting research of alleviation in transient deactivation by NO_(x), the components co-existing in exhausts, are of great significance for the application.

关键词： Methane Catalytic oxidation Palladium NO_(x)influence

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Bio-based alternatives to plastic drinking straws: are they more environmentally benign and consumer preferred?

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Carbon Research 2023年第1期2卷 1-14页

作者： Liang, Yinglin He, Jiazhou Zhuang, Min Chen, Fayuan Yang, Kui Ma, Jinxing Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education School of Ecology Environment and Resources Guangdong University of Technology Guangzhou510006 China Analysis and Test Center Guangdong University of Technology Guangzhou510006 China State Key Laboratory of Heavy Oil Processing State Key Laboratory of Petroleum Pollution Control China University of Petroleum-Beijing Beijing102249 China

The global production of nondegradable catering straws has skyrocketed due to their versatile properties, which results in significant CO2 emissions and pollution of the ecological system. While paper and polylactic acid straws have gained increasing popularity in the beverage industry, there needs to be more investigation of the vital product properties determining their hedonic differences. This study systematically compared the properties of paper, polylactic acid and plastic straws, and their impacts on the consumer experience and willingness. Results showed that the open structure of paper straws prompted water penetration and absorption, reaching a water absorption of 30% after 10-min wetting, which might affect the taste of the drink. In contrast, the compact polymer matrices of polylactic acid straws prevented mass exchange in their use for drinking but retarded product biodegradation under natural conditions. Results of consumer testing showed that while the participants had a comparable liking of paper and polylactic acid straws to insert into a drink (i.e., 4.16 and 4.47 out of 5, respectively), the intrinsic difference was covered up by the open-ended capping for beverages. For the "fully sealed on top" dataset, paper straws dropped to 3.46, while that for polylactic acid straws remained at 4.70. Furthermore, a biodegradable straw easily inserted into a drink without fracture may positively prompt merchants’ revenue. This study is expected to pave the way for the advancement and widespread use of bio-based products. Graphical Abstract: [Figure not available: see fulltext.]. © 2023, The Author(s).

关键词： Biodegradation

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The effects of climate warming on microbe-mediated mechanisms of sediment carbon emission

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Journal of environmental Sciences 2023年第7期129卷 16-29页

作者： Weiwei Lü Haoyu Ren Wanchang Ding He Li Xin Yao Xia Jiang College of Water Sciences Beijing Normal UniversityBeijing 100875China State Key Laboratory of Environmental Criteria and Risk Assessment National Engineering Laboratory of Lake Water Pollution Control and Ecological Restoration TechnologyChinese Research Academy of Environmental SciencesBeijing 100012China School of Environment and Planning University of LiaochengLiaocheng 252000China

Due to significant differences in biotic and abiotic properties of soils compared to those of sediments,the predicted underlying microbe-mediated mechanisms of soil carbon emissions in response to warming may not be applicable for estimating similar emissions from inlandwater *** addressed this issue by incubating different types of sediments,(including lake,small river,and pond sediments)collected from 36 sites across the Yangtze River basin,under short-term experimentalwarming to explore the effects of climatewarming on sediment carbon emission and the underlying microbe-mediated *** results indicated that under climate warming Cc emissions were affected more than CH_(4) emissions,and that pond sediments may yield a greater relative contribution of CO_(2) to total carbon emissions than lake and river ***-induced CO_(2) and CH_(4) increases involve different microbe-mediated mechanisms;Warming-induced sediment CO_(2) emissions were predicted to be directly positively driven by microbial community network modularity,which was significantly negatively affected by the quality and quantity of organic carbon and warming-induced variations in dissolved oxygen,Conversely,warminginduced sediment CH_(4) emissionswere predicted to be directly positively driven bymicrobial community network complexity,which was significantly negatively affected by warminginduced variations in *** findings suggest that biotic and abiotic drivers for sediment CO_(2) and CH_(4) emissions in response to climate warming should be considered separately when predicting sediment organic carbon decomposition dynamics resulting from climate change.

关键词： Inland water sediments Temperature sensitivity Carbon emission Microbe-mediated mechanism Short-term experimental warming

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Anthropogenic monoterpenes aggravating ozone pollution

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National Science Review 2022年第9期9卷 178-185页

作者： Haichao Wang Xuefei Ma Zhaofeng Tan Hongli Wang Xiaorui Chen Shiyi Chen Yaqin Gao Ying Liu Yuhan Liu Xinping Yang Bin Yuan Limin Zeng Cheng Huang Keding Lu Yuanhang Zhang State Key Joint Laboratory of Environmental Simulation and Pollution Control State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution ControlCollege of Environmental Sciences and Engineering Peking University School of Atmospheric Sciences Sun Yat-sen University Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Key Laboratory of Tropical Atmosphere–Ocean System Ministry of Education Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Institute of Energy and Climate Research IEK-8:TroposphereForschungszentrum Jülich Gmb H State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Complex Shanghai Academy of Environmental Sciences Institute for Environmental and Climate Research Jinan University

Monoterpenes have been known to have a critical influence on air quality and climate change through their impact on the formation of fine *** we present field evidence that monoterpene oxidations largely enhanced local ozone production in a regional site in eastern *** observed monoterpene was most likely from biomass burning rather than biogenic emissions,as indicated by the high correlation with CO at night-time,and the observed ratio of these two species was consistent with previously determined values from biomass burning *** monoterpene oxidations were determined experimentally based on direct radical measurements,leading to a daily ozone enhancement of 4-18 parts per billion by volume（ppb）,which was 6%-16% of the total ozone production,depending on the speciation of *** demonstrates that the previously overlo oked anthropogenic monoterpenes make an important contribution to 03 production in eastern *** role could possibly be important at similar locations across China and other parts of the world that are characterized by massive emissions,especially where there are high *** results highlight that anthropogenic monoterpenes should be taken into account when proceeding with the coordinated mitigation of O3and particulate matter pollution.

关键词： monoterpenes ozone pollution biomass burning anthropogenic emissions radical chemistry

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simulation of the Ecosystem Productivity Responses to Aerosol Diffuse Radiation Fertilization Effects over the Pan-Arctic during 2001–19

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Advances in Atmospheric Sciences 2024年第1期41卷 84-96页

作者： Zhiding ZHANG Xu YUE Hao ZHOU Jun ZHU Yadong LEI Chenguang TIAN Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&Technology(NUIST)Nanjing 210044China Climate Change Research Center Institute of Atmospheric Physics(IAP)Chinese Academy of Sciences(CAS)Beijing 100029China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Severe Weather&Key Laboratory of Atmospheric Chemistry of CMA Chinese Academy of Meteorological SciencesBeijing 100081China

The pan-Arctic is confronted with air pollution transported from lower *** have shown that aerosols help increase plant photosynthesis through the diffuse radiation fertilization effects(DRFEs).While such DRFEs have been explored at low to middle latitudes,the aerosol impacts on pan-Arctic ecosystems and the contributions by anthropogenic and natural emission sources remain less ***,we perform regional simulations at 0.2o×0.2ousing a well-validated vegetation model(Yale Interactive terrestrial Biosphere,YIBs)in combination with multi-source of observations to quantify the impacts of aerosol DRFEs on the net primary productivity(NPP)in the pan-Arctic during *** show that aerosol DRFEs increase pan-Arctic NPP by 2.19 Pg C(12.8%)yr^(-1)under clear-sky conditions,in which natural and anthropogenic sources contribute to 8.9% and 3.9%,*** all-sky conditions,such DRFEs are largely dampened by cloud to only 0.26 Pg C(1.24%)yr^(-1),with contributions of 0.65% by natural and 0.59% by anthropogenic *** aerosols cause a positive NPP trend of 0.022% yr^(-1)following the increased fire activities in the *** contrast,anthropogenic aerosols induce a negative trend of-0.01% yr^(-1)due to reduced emissions from the middle *** trends in aerosol DRFEs show a turning point in the year of 2007 with more positive NPP trends by natural aerosols but negative NPP trends by anthropogenic aerosols *** affected by modeling uncertainties,this study suggests a likely increasing impact of aerosols on terrestrial ecosystems in the pan-Arctic under global warming.

关键词： diffuse radiation fertilization effects anthropogenic aerosols natural aerosols pan-Arctic net primary productivity

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Reproductive Influences of Erythromycin and Sulfamethoxazole on Caenorhabditis elegans over Generations Mediated by Lipid Metabolism

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Chemical Research in Chinese Universities 2023年第3期39卷 434-440页

作者： YU Zhenyang WANG Lei LI Gaotian ZHANG Jing Ecological Technique and Engineering College Shanghai Institute of TechnologyShanghai201418P.R.China Jiaxing Tongji Institute for Environment Jiaxing314051P.R.China State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze River Water EnvironmentMinistry of EducationCollege of Environmental Science and EngineeringTongji UniversityShanghai200092P.R.China

Antibiotics are emerging pollutants with ***,their reproductive toxicities over generations and underlying mechanisms were seldom *** the present study,reproductive effects of erythromycin(ERY)and sulfamethoxazole(SMZ)were studied on Caenorhabditis elegans(***)with multi-generational exposure from F1 to F4,and their effects in the non-direct exposed offspring of F1 and F4(T4 and T4’)were explored to investigate trans-generational *** high concentrations,ERY and SMZ inhibited the reproduction and the inhibition decreased with more generations’*** low concentrations,SMZ stimulated reproduction in T4,opposite to its inhibition in *** analysis on ten enzymes and proteins in lipid and glucolipid metabolism showed that ERY commonly inhibited fatty acid synthetase(FAS)in F1 to F4,while ERY and SMZ showed stimulation and inhibition on other *** biomarker response(IBR)index values showed that ERY and SMZ stimulated the overall metabolism in F1,and the stimulation decreased and even altered to inhibition in later *** comparing multi-and trans-generational effects,ERY and SMZ at high concentration caused inhibition on reproduction in T4 and stimulation in T4’,which were opposite to those in F1 and F4.

关键词： Multi-generational effect Antibiotic Reproduction Lipid metabolism

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AQDS Enhances Degradation of BDE-47 by Promoting Shewanella oneidensis MR-1-mediated Fenton Reaction with Fe(III)-containing Minerals

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Journal of Earth Science 2025年

作者： Yongguang Jiang Siqi Zhu Zhou Jiang Yiran Dong Liang Shi School of Environmental Studies， China University of Geosciences State Key Laboratory of Biogeology and Environmental Geology， China University of Geosciences Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science， China University of Geosciences State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution， Ministry of Ecology and Environment， China University of Geosciences(Wuhan)

Electron shuttles are widespread in the environments and play important role in microbe-mineral interaction. This study investigated the effects of a model electron shuttle (i.e.， anthraquinone-2， 6-disulfonate， AQDS) on Shewanella oneidensis MR-1-mediated Fenton reaction and subsequent degradation of 2， 2′， 4， 4′-tetrabrominated diphenyl ether (BDE-47). Three Fe(III)-containing minerals， namely， ferrihydrite， goethite and nontronite， were used as electron acceptors and Fe(II) sources. With each mineral， additions of 0.01 – 1 mM AQDS in the reactions significantly enhanced Fe(III) reduction by S. oneidensis MR-1 and increased the amounts of Fe(II) produced in anoxic phase. As a result， the amounts of cumulative ·OH formed in oxic phase were increased by 10% – 287%. Regression analysis revealed that ·OH cumulation has significant linear correlation with sorbed Fe(II) but not aqueous and structural Fe(II). This finding may be ascribed to the higher reactivity of sorbed Fe(II) in oxygenation than the latter two types of Fe(II). With more ·OH， the degradation efficiency of BDE-47 was elevated by 31% – 173%. Collectively， AQDS enhances ·OH formation and BDE-47 degradation by promoting production of Fe(II)， particularly sorbed Fe(II) in S. oneidensis MR-1-mediated Fenton reaction with Fe(III)-containing minerals.

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Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas

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Nano-Micro Letters 2025年第7期 363-381页

作者： Meng Zhao Liang Huang Yanshan Gao Ziling Wang Shuyu Liang Xuancan Zhu Qiang Wang Hong He Dermot O'Hare College of Environmental Science and Engineering Beijing Forestry University State Key Laboratory of Efficient Production of Forest Resources Beijing Forestry University Research Center of Solar Power and Refrigeration Institute of Refrigeration and CryogenicsShanghai Jiao Tong University State Key Joint Laboratory of Environment Simulation and Pollution Control Research Centre for Eco-Environmental SciencesChinese Academy of Sciences Chemistry Research Laboratory Department of ChemistryUniversity of Oxford

Although supported solid amine adsorbents have attracted great attention for CO2capture,critical chemical deactivation problems including oxidative degradation and urea formation have severely restricted their practical applications for flue gas *** this work,we reveal that the nature of surface hydroxyl groups （metal hydroxyl Al–OH and nonmetal hydroxyl Si–OH） plays a key role in the deactivation *** polyethyleneimine （PEI） supported on Al–OH-containing substrates suffers from severe oxidative degradation during the CO2capture step due to the breakage of amine-support hydrogen bonding networks,but exhibits an excellent anti-urea formation feature by preventing dehydration of carbamate products under a pure CO2regeneration *** contrast,PEI supported on Si–OH-containing substrates exhibits excellent anti-oxidative stability under simulated flue gas conditions by forming a robust hydrogen bonding protective network with Si–OH,but suffers from obvi- ous urea formation during the pure CO2regeneration *** also reveal that the urea formation problem for PEI-SBA-15 can be avoided by the incorporation of an OH-containing PEG *** on the intrinsic understanding of degradation mechanisms,we successfully synthesized an adsorbent 40PEI-20PEG-SBA-15 that demonstrates outstanding stability and retention of a high CO2capacity of 2.45 mmol g-1over 1000 adsorption–desorption cycles,together with negligible capacity loss during aging in simulated flue gas （10%CO2+5%O2+3%H2O） for one month at60–70℃.We believe this work makes great contribution to the advancement in the field of ultra-stable solid amine-based CO2capture materials.

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