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control of aliphatic halogenated DBP precursors with multiple drinking water treatment processes： Formation potential and integrated toxicity

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Journal of Environmental Sciences 2017年第8期29卷 322-330页

作者： Yimeng Zhang Wenhai Chu Dechang Yao Daqiang Yin Key Laboratory of Yangtze River Water Environment Ministry of Education State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University Shanghai 200092 China

The comprehensive control efficiency for the formation potentials（FPs） of a range of regulated and unregulated halogenated disinfection by-products（DBPs）（including carbonaceous DBPs（C-DBPs）, nitrogenous DBPs（N-DBPs）, and iodinated DBPs（I-DBPs）） with the multiple drinking water treatment processes, including pre-ozonation, conventional treatment（coagulation–sedimentation, pre-sand filtration）, ozone-biological activated carbon（O_3-BAC） advanced treatment, and post-sand filtration, was investigated. The potential toxic risks of DBPs by combing their FPs and toxicity values were also *** results showed that the multiple drinking water treatment processes had superior performance in removing organic/inorganic precursors and reducing the formation of a range of halogenated DBPs. Therein, ozonation significantly removed bromide and iodide,and thus reduced the formation of brominated and iodinated DBPs. The removal of organic carbon and nitrogen precursors by the conventional treatment processes was substantially improved by O_3-BAC advanced treatment, and thus prevented the formation of chlorinated C-DBPs and N-DBPs. However, BAC filtration leads to the increased formation of brominated C-DBPs and N-DBPs due to the increase of bromide/DOC and bromide/*** the whole multiple treatment processes, the rank order for integrated toxic risk values caused by these halogenated DBPs was haloacetonitriles（HANs）》haloacetamides（HAMs）〉haloacetic acids（HAAs）〉 trihalomethanes（THMs）〉 halonitromethanes（HNMs）》I-DBPs（I-HAMs and I-THMs）. I-DBPs failed to cause high integrated toxic risk because of their very low FPs. The significant higher integrated toxic risk value caused by HANs than other halogenated DBPs cannot be ignored.

关键词： Carbonaceous disinfection by-products（C-DBPs） Nitrogenous disinfection by-products（N-DBPs） Iodinated disinfection by-products（I-DBPs） Formation potential Toxic risk Drinking water treatment plant（DWTP）

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Characterization of N-nitrosodimethylamine formation from the ozonation of ranitidine

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Journal of Environmental Sciences 2017年第8期29卷 116-126页

作者： Juan Lv Lin Wang Yongmei Li School of Environment and Architecture University of Shanghai for Science and Technology State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji University

N-nitrosodimethylamine（NDMA） is an emerging disinfection by-product which is formed during water disinfection in the presence of amine-based precursors. Ranitidine, as one kind of amine-based pharmaceuticals, has been identified as NDMA precursor with high NDMA molar conversion during chloramination. This study focused on the characterization of NDMA formation during ozonation of ranitidine. Influences of operational variables（ozone dose, pH value） and water matrix on NDMA generation as well as ranitidine degradation were evaluated. The results indicate high reactivity of ranitidine with ***（DMA） and NDMA were generated due to ranitidine oxidation. High pH value caused more NDMA accumulation. NDMA formation was inhibited under acid conditions（pH ≤ 5） mainly due to the protonation of amines. Water matrix such as HCO-3and humic acid impacted NDMA generation due to UOH scavenging. Compared with UOH,ozone molecules dominated the productions of DMA and NDMA. However, UOH was a critical factor in NDMA degradation. Transformation products of ranitidine during ozonation were identified using gas chromatography–mass spectrometry. Among these products, just DMA and N,N-dimethylformamide could contribute to NDMA formation due to the DMA group in the molecular structures. The NDMA formation pathway from ranitidine ozonation was also proposed.

关键词： Ranitidine N-nitrosodimethylamine（NDMA） Ozone Influencing factor NDMA formation pathway

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Corrigendum to "The correlation study between PCBs and δ15N values or FAs in fish collected from Dongting Lake" [Chemosphere 234 (2019) 763-768]

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Chemosphere 2020年 245卷 125683页

作者： Fangfang Ge Xing Wang Kexin Zhang Xiaoling Jin Rui Guo Yan Liu Xiaocui Qiao Xingru Zhao Binghui Zheng Xuezhong Zheng National Engineering Laboratory for Lake Pollution Control and Ecological Restoration State Environmental Protection Key Laboratory of Drinking Water Source Protection Chinese Research Academy of Environmental Sciences Beijing 100012 China Hebei Normal University Shijiazhuang 050024 China. National Engineering Laboratory for Lake Pollution Control and Ecological Restoration State Environmental Protection Key Laboratory of Drinking Water Source Protection Chinese Research Academy of Environmental Sciences Beijing 100012 China. National Engineering Laboratory for Lake Pollution Control and Ecological Restoration State Environmental Protection Key Laboratory of Drinking Water Source Protection Chinese Research Academy of Environmental Sciences Beijing 100012 China. Electronic address: zhaoxr@***.

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controlling nucleophilic emerging organic contaminants using an inorganic oxidizing coagulant based on the oxidation-induced coagulation mechanisms

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Chemical Engineering Journal 2025年 519卷

作者： Lili Wang Weiying Xu Zhenghe Xu Yuanji Zhu Yan Song Dongsheng Wang Xiaodong Xin Ruibao Jia Xing Xu School of Water Conservancy and Environment University of Jinan No. 336 Nanxinzhuang Western Road Jinan 250022 Shandong PR China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Science Chinese Academy of Science No. 18 Shuangqing Road Beijing 100085 PR China Economic & Technology Research Institute of State Grid Shandong Electric Power Company No. 111 Weishi Road Jinan 250021 Shandong PR China Shandong Province City Water Supply and Drainage Water Quality Monitoring Center No 5111 Aoti Middle Road Jinan 250013 Shandong PR China Department of Environmental Engineering College of Environmental & Resource Sciences Zhejiang University No 866 Yuhangtang Road Hangzhou 310013 Zhejiang PR China Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and Engineering Shandong University Qingdao 266237 Shandong PR China

Traditional coagulants are ineffective in emerging organic contaminants (EOCs) contaminated water and wastewater treatments. In this study, a multifunctional inorganic oxidizing coagulant (IOC) was developed by a simple alkaline co -polymerization method to improve the coagulability of low molecular weight (MW) organic compounds, which were demonstrated by eight kinds of representative EOCs. Notably, IOC demonstrated exceptional removal capabilities for hydrophilic (low Log Kow ) and nucleophilic (high NI ) EOCs, e.g., sulfamethazine (SMZ), tetracycline (TC) and ciprofloxacin (CIP), achieving removal efficiencies of 45–96% at optimum coagulant dosage of 0.2 mmol/L, while all the EOCs removal efficiencies by traditional aluminum sulfate (AS) and poly‑aluminum chloride (PAC) were lower than 20%. The dynamic floc formation and growth analysis revealed that floc size played a minor role in EOCs removal. Instead, floc growth rate ( S floc ) was positively related with the EOC removal by IOC ( S floc values of 0.81–1.43 μm·s −1 for nucleophilic organics and 0.41–0.69 μm·s −1 for electrophilic organics) with the correlation coefficient of 0.9 and large S floc was associated with the strong EOCs-IOC reactivity. Combined with the electron paramagnetic resonance (EPR) and ultra-high-performance liquid chromatography high-resolution mass spectrometry (UHPLC-HRMS) results, an innovative oxidation-induced coagulation mechanism of IOC was proposed. Oxidation agent prompted the formation of intermediates with elevated complexation and affinity with aluminum hydrolysates. This study provides a novel inorganic coagulant and strategy for EOCs-contained water, which was demonstrated to be a promising technique for the abatement of hydrophilic and nucleophilic EOCs than traditional coagulation.

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Enzymatic nitrous oxide emissions from wastewater treatment

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Frontiers of Environmental Science & Engineering 2018年第1期12卷 113-124页

作者： Gang Guo Yayi Wang Tianwei Hao Di Wu Guang-Hao Chen Department of Civil ＆ Environmental Engineering The Hong Kong University of Science and Technology Hong Kong 999077 China State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University Shanghai 200092 China Institute for Advanced Study The Hong Kong University of Science and Technology Hong Kong 999077 China Hong Kong Branch of the Chinese National Engineering Research Center for Control ＆ Treatment of Heavy Metal Pollution The Hong Kong University of Science and Technology Hong Kong 999077 China Wastewater Treatment Laboratory FYT Graduate School The Hong Kong University of Science and Technology Guangzhou 511458 China

Nitrous oxide （N20）, a potent greenhouse gas, is emitted during nitrogen rernoval in wastewater treatment, significantly contributing to greenhouse effect. Nitrogen removal generally involves nitrification and denitrification catalyzed by specific enzymes. N20 production and consumption vary considerably in response to specific enzyme-catalyzed nitrogen imbalances, but the mechanisms are not yet completely understood. Studying the regulation of related enzymes＂ activity is essential to minimize N20 emissions during wastewater treatment. This paper aims to review the poorly understood related enzymes that most commonly involved in producing and consuming N20 in terms of their nature, structure and catalytic mechanisms. The pathways of N20 emission during wastewater treatment are briefly introduced. The key environmental factors influencing N20 emission through regulatory enzymes are summarized and the enzyme-based mechanisms are revealed. Several enzyme- based techniques for mitigating N20 emissions directly or indirectly are proposed. Finally, areas for further research on N20 release during wastewater treatment are discussed.

关键词： Nitrous oxideMitigationEnzyme catalysisNitrogen removalWastewater treatment

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Symmetry-Breaking Strategy Yields Dopant-Free Small Molecule Hole Transport Materials for Inorganic Perovskite Solar Cells with 20.58% Efficiency and Outstanding Stability

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Angewandte Chemie 2025年第23期137卷

作者： Huimin Cai Qiliang Zhu Tianchen Pan Lunbi Wu Xin Gu Chenghao Duan Liangbin Xiong Jiaying Wu Sha Liu Liyang Yu Ruipeng Li keyou Yan Ruijie Ma Shengjian Liu Tao Jia Gang Li School of Optoelectronic Engineering Guangdong Polytechnic Normal University Guangzhou 510665 P.R. China School of Environment and Energy State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling South China University of Technology Guangzhou 510000 P.R. China Advanced Materials Thrust Function Hub The Hong Kong University of Science and Technology (Guangzhou) Nansha Guangzhou 511400 P.R. China Longzihu New Energy Laboratory School of Energy Science and Technology Henan University Zhengzhou 450000 P.R. China Dongguan Key Laboratory of Interdisciplinary Science for Advanced Materials and Large-Scale Scientific Facilities School of Physical Sciences Great Bay University Dongguan Guangdong 523000 P.R. China Research Institute of Frontier Science Southwest Jiaotong University Chengdu 610031 P.R. China School of Chemical Engineering Sichuan University Chengdu 610065 P.R. China National Synchrotron Light Source (NSLS II) Brookhaven National Laboratory Upton NY 11973 USA Department of Electrical and Electronic Engineering Research Institute for Smart Energy (RISE) Photonic Research Institute (PRI) Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices The Hong Kong Polytechnic University Hong Kong P.R. China School of Chemistry Guangzhou Key Laboratory of Materials for Energy Conversion and Storage Key Laboratory of Electronic Chemicals for Integrated Circuit Packaging South China Normal University (SCNU) Guangzhou 510006 P.R. China

Inorganic perovskites are known for their excellent photothermal stability; however, the photothermal stability of all-inorganic n-i-p perovskite solar cells (PSCs) is compromised due to ion diffusion and free radical-induced degradation caused by the use of doped spiro-OMeTAD hole transport materials (HTMs). In this study, two isomeric donor–acceptor–donor (D–A–D) type small molecules, namely HBT and HiBT, were developed and used as dopant-free HTMs, using 2,1,3-benzothiadiazole or benzo[ d ][1,2,3]thiadiazole as acceptor moieties. The HiBT molecule, with its symmetry-breaking features, exhibits a large dipole moment, enhanced coordination-active sites, and a well-aligned energy level structure, all of which contribute to passivating perovskite surface defects and improving free charge separation. As a result, inorganic CsPbI 3 PSCs with HiBT HTM achieved an impressive power conversion efficiency (PCE) of 20.58%, the highest reported for dopant-free HTM-based inorganic PSCs. Moreover, the enhanced hydrophobic properties of HiBT molecules, coupled with their ability to passivate perovskite surface defects, contribute to significantly improved device stability. The unencapsulated devices based on HiBT HTM retained over 83% and 80% of their initial efficiency after being stored at 85 °C for 50 days and undergoing maximum power point (MPP) tracking at 85 °C for 1100 h, respectively. These results highlight that the symmetry-breaking strategy is an exceptionally effective approach for designing efficient, dopant-free small molecule HTMs, significantly contributing to both the high efficiency and enhanced stability of all-inorganic PSCs.

关键词： Dopant-free Hole transport material Inorganic perovskite solar cell Small molecule Symmetry-breaking

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Correction to: Spatiotemporal variation and source apportionment of organotin compounds in sediments in the Yangtze Estuary

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Environmental Sciences Europe 2019年第1期31卷 1-2页

作者： Chen, Chunzhao Chen, Ling Xue, Rui Huang, Qinghui Wu, Lingling Ye, Shufeng Zhang, Wen Key Laboratory of Yangtze River Water Environment of the Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai China Shanghai Institute of Pollution Control and Ecological Security Shanghai China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai China East China Sea Environmental Monitoring Center East China Sea Branch of the State Oceanic Administration Shanghai China John A. Reif Jr. Department of Civil and Environmental Engineering New Jersey Institute of Technology Newark USA

The authors note a correction to the article [1]. Figure 1 of the original article is incomplete. Diaoyu Island, Chiwei Yu and the Dongsha Islands are missing. This article presents the corrected version of F...

The authors note a correction to the article [1]. Figure 1 of the original article is incomplete. Diaoyu Island, Chiwei Yu and the Dongsha Islands are missing. This article presents the corrected version of Fig. 1.

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Highly Efficient Degradation of Pharmaceutical Sludge by Wet Air Oxidation:A Pilot-scale Study

Highly Efficient Degradation of Pharmaceutical Sludge by Wet...

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2018 International Conference on Power, Energy and Environmental Engineering（ICPEEE 2018)

作者： Xu ZENG Jun LIU Jian-fu ZHAO State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji University

In this study,wet air oxidation of pharmaceutical sludge was investigated through a pilot-scale reaction *** gas was used as *** effects of reaction parameters on the process performance were discussed,such as temperature,reaction time,and oxygen *** results showed that the volatile suspended solids(VSS) removal rates were above 90%,and the total chemical oxygen demand(COD) removal rates were above 60%,which indicated that wet air oxidation is an ideal process for the degradation of pharmaceutical sludge.

关键词： Pharmaceutical sludge Wet air oxidation COD VSS

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Rhizosphere Microbiome Assembly and Its Impact on Plant Growth

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Journal of agricultural and food chemistry 2020年第18期68卷 5024-5038页

作者： Qian Qu Zhenyan Zhang W J G M Peijnenburg Wanyue Liu Tao Lu Baolan Hu Jianmeng Chen Jun Chen Zhifen Lin Haifeng Qian College of Environment Zhejiang University of Technology Hangzhou 310032 P.R. China. Institute of Environmental Sciences (CML) Leiden University 2300 RA Leiden The Netherlands. National Institute of Public Health and the Environment (RIVM) Center for Safety of Substances and Products P.O. Box 1 3720BA Bilthoven The Netherlands. State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 P.R. China. Department of Environmental Engineering Zhejiang University Hangzhou 310058 P.R. China. State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai 200092 P.R. China.

Microorganisms colonizing the plant rhizosphere provide a number of beneficial functions for their host. Although an increasing number of investigations clarified the great functional capabilities of rhizosphere microbial communities, the understanding of the precise mechanisms underlying the impact of rhizosphere microbiome assemblies is still limited. Also, not much is known about the various beneficial functions of the rhizosphere microbiome. In this review, we summarize the current knowledge of biotic and abiotic factors that shape the rhizosphere microbiome as well as the rhizosphere microbiome traits that are beneficial to plants growth and disease-resistance. We give particular emphasis on the impact of plant root metabolites on rhizosphere microbiome assemblies and on how the microbiome contributes to plant growth, yield, and disease-resistance. Finally, we introduce a new perspective and a novel method showing how a synthetic microbial community construction provides an effective approach to unravel the plant-microbes and microbes-microbes interplays.

关键词： disease-resistance growth-promotion plant rhizosphere microbiome synthetic microbial community

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In situ synthesizing silver nanoparticels by bio-derived gallic acid to enhance antimicrobial performance of PVDF membrane

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Separation and Purification Technology 2020年 251卷

作者： Liang Xuan Li-Jiao Tian Tian Tian Xue-Meng Wang Dian-Hai Yang Han-Qing Yu State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai China CAS Key Laboratory of Urban Pollutant Conversion Department of Applied Chemistry University of Science and Technology of China Hefei 230026 China

Modifying membranes with nanoparticles is a promising approach to mitigate biofouling in membrane preparation processes. However, high costs of the modification agents limit the practical applications of this approach. In this work, we developed a cost-effective and ecofriendly method to provide polyvinylidene fluoride membrane with a strong antimicrobial activity by loading silver nanoparticles (AgNPs). In this approach, gallic acid (GA) was used as a capturing and reducing agent to in situ synthesize AgNPs on membrane surface. The resulting AgNPs-functionalized membrane exhibited a 3.5-fold higher pure water flux and enhanced antifouling capacity compared to the control membrane. Specifically, AgNPs endowed the membrane a compelling antimicrobial activity on both Gram-positive and Gram-negative bacteria, evidenced by diffusion inhibition zone and bacterial proliferation test results. More importantly, pomegranate peel extracts rich in GA was effectively used in such a membrane functionalization approach. Taken together, this work demonstrates the robust in situ fabrication of antimicrobial AgNPs-functionalized membranes through bio-derived GA and provides a promising alternative for their potential practical applications.

关键词： Antimicrobial membrane Fouling Gallic acid Pomegranate peel Silver nanoparticles

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