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Chemical Engineering Journal 2025年 516卷

作者： Dai, Xiao-Jun Chen, Yi-Ting Zhang, Wen-Ge Li, Shu-Xuan Gu, Ao-Tian Gong, Chun-Hui Wang, Peng Lu, Ji-Gen Yang, Yi Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing210094 China Particle Laboratory Center for Environmental Metrology National Institute of Metrology Beijing100022 China Jiangsu Environmental Protection Group Co. Ltd Nanjing210036 China

Radioactive iodine poses a potential threat to human health. Bi2O3 has great potential for the removal of radioactive iodine, however, the adsorption performance and adsorption mechanism of its different crystal forms for radioactive iodine ions (I-) in water are not clear. In this paper, the adsorption performance and adsorption mechanisms of four different crystal forms (α, β, δ, γ) of Bi2O3 on I- were systematically investigated. Among them, β-Bi2O3 and δ-Bi2O3 exhibited the optimal adsorption rate and adsorption capacity, respectively, and the oxygen vacancy (OV) on the surface were one of the main influences on the properties. Interestingly, there is crystal form transformation and amorphization of different crystal forms during I- adsorption and the adsorption products are different for different crystal forms. The selectivity, pH adaptation and radiation resistance of the four Bi2O3 were explored by experiments. In addition, the effects of crystal form and OV on the adsorption properties were analyzed by density functional theory (DFT). This study provides a theoretical basis for the design and preparation of different crystal forms of Bi2O3 composites for the adsorption of I-. © 2025 Elsevier B.V.

关键词： Density functional theory

Sonicated Zeolitic Imidazolate Frameork-8 derived Nitrogen-doped hierarchical nanoporous carbon for efficient capture and reversible storage of radioiodine

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Research Square

Research Square 2021年

作者： Miensah, Elvis Djam Chen, Jiuyu Gu, Aotian Wang, Peng Liu, Ying Gong, Chunhui Mao, Ping Chen, Kai Jiao, Yan Zhang, Zongxiang Yang, Yi Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing210094 China National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province School of Chemical Engineering Huaiyin Institute of Technology Huaian223003 China Nanjing University of Information Science & Technology Nanjing210044 China Jiangsu Environmental Protection Key Laboratory of Monitoring for Organic Pollutants in Soil Taizhou Environmental Monitoring Center Taizhou225300 China

Iodine plays a significant role in industry and in chemical processes within living organisms. However, radioiodine exposure possess threats such as thyroid cancer to humans, when they are released into the environment when using nuclear technology and through nuclear accidents. Its capture and storage is critical to safeguard industrial applications while preventing environmental leakages. Herein we report efficient radioiodine capture using a hierarchical nitrogen-doped, large surface area, nanoporous carbon derived from ultrasonication of ZIF-8. The carbon exhibited high adsorption capacity of 434 wt% gravimetrically and 1418 mgg-1 in cyclohexane solution with fast kinetics and high recoverability. We deduced the high adsorption capacity to be due to the large surface area with micro and mesopores, presence of hydroxyl groups acting as electron donors and the presence of nitrogen, which interacts strongly with the electron‐deficient iodine (I2). Moreover, the process best fits the pseudo-second-order and Freundlich models with multilinearity observed with Webber-Morris model. Because of its comparatively lower cost, large surface area, facile preparation, good regeneration and fast kinetics, the as-prepared porous carbon shows exceptional promise as radioiodine adsorbent. © 2021, CC BY.

关键词： Adsorption

Micron-Engineered Phosphorus-Rich Biochar Mitigated Metalloid Contamination, Enhanced Bacterial Biomass, and Improved Rice (Oryza Sativa L.) Quality in Antimony Mining Regions

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SSRN 2024年

作者： Chen, Hanbo Li, Jianhong Li, Meng Li, Jiayi Sarmah, Ajit K. Zhang, Xiaokai Gao, Yurong Fang, Zheng Yang, Xing Liu, Yuxue Chen, Chongjun Shan, Shengdao Wang, Hailong Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province School of Environment and Natural Resources Zhejiang University of Science & Technology Hangzhou310023 China Danzhou Soil Environment of Rubber Plantation Hainan Observation and Research Station Rubber Research Institute Chinese Academy of Tropical Agricultural Sciences Hainan Danzhou571737 China Agronomy College Shenyang Agricultural University Shenyang110866 China School of Environmental and Chemical Engineering Foshan University Foshan528000 China Civil and Environmental Engineering Department The Faculty of Engineering The University of Auckland Private Bag 92019 Auckland1142 New Zealand Institute of Environmental Processes and Pollution Control School of Environment and Ecology Jiangnan University Wuxi214122 China School of Environmental Science and Engineering Guangzhou University Guangzhou510006 China Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province School of Ecology and Environment Hainan University Renmin Road Haikou570228 China Institute of Environment Resource Soil and Fertilizer Zhejiang Academy of Agricultural Sciences Hangzhou310021 China School of Environmental Science and Engineering Suzhou University of Science and Technology Suzhou215009 China Guangdong Provincial Key Laboratory of Integrated Agro-environmental Pollution Control and Management Institute of Eco-environmental and Soil Sciences Guangdong Academy of Sciences Guangzhou510650 China

In this study, three ball-milled phosphorus-rich biochars (BMPBs, 1-3) were fabricated based on biochar-to-ball ratios of 1:60, 1:80, and 1:100, respectively. Subsequently, their efficacy in remediating soil contaminated with arsenic (As) and antimony (Sb) was assessed. The ball milling process endowed biochar with enhanced specific surface area (66.4-98.1 m2 g-1) and intensity of functional groups (e.g., C=O and C–O–C). The BMPB addition decreased the soil-available As concentration by 21.4%-25.5%, while only the BMPB-3 treatment caused a significant reduction (14.4%) in the soil-available Sb concentration. Furthermore, BMPB-3 treatment showed the highest increase of 67.4% in the phospholipid fatty acids (PLFA) concentration of Gram-negative bacteria compared to the control, highlighting a positive modulation of microbial community in soils. The application of biochar, particularly BMPB-3, was more effective in promoting the development of iron plaques that enhanced the sequestration of As/Sb in rice roots, ultimately leading to 54.6% and 61.3% reductions in As and Sb uptake by rice grains, respectively. Plant physiological responses indicated that BMPB treatment could mitigate oxidative stress in rice roots by reducing the contents of malondialdehyde and proline due to the activation of catalase and superoxide dismutase activities. Partial least squares path modeling (PLS-PM) analysis indicated that soil properties and the formation of iron plaques after biochar application were pivotal for the bioavailability, translocation, accumulation, and detoxification of As and Sb within soil-rice systems. BMPB-3 is considered as an optimal amendment for remediating As-Sb co-contaminated soil and thereby enhancing rice yield and quality. © 2024, The Authors. All rights reserved.

关键词： Detoxification

The Reduced Contribution of Coal Combustion to Pb in Particle Phase after Coal-to-Gas in Urban Beijing, China

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SSRN 2023年

作者： Lian, Xiufeng Liu, Fengxian Peng, Long Tang, Guigang Dao, Xu Guo, Hui Cheng, Chunlei Zhang, Guohua Bi, Xinhui Tang, Mei Lia, Lei Zhoua, Zhen Lia, Mei Institute of Mass Spectrometry and Atmospheric Environment Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution Jinan University Guangzhou510632 China State Key Laboratory of Organic Geochemistry Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou510632 China Taiyuan University of Technology Shanxi Taiyuan030024 China College of Ecology and Environment Xin Jiang University Urumqi830046 China China National Environmental Monitoring Centre Beijing100012 China Hunan Province Environmental Monitoring Cerner Hunan410014 China Guangdong MS Institute of Scientific Instrument Innovation Guangzhou510700 China

Coal-to-gas (replacing coal with natural gas) is an important energy transformation strategy for addressing environmental, but the improvement of atmospheric Pb pollution from coal-to-gas remains poorly understood. Beijing has basically realized coal-free in urban and plain areas by the end of 2018. A single particle aerosol mass spectrometry (SPAMS) was deployed to investigate the mixing state and chemical processing of Pb-rich particles in urban Beijing in 2019. Based on a large dataset of mass spectra, this study find K-Na-EC and K-OC particles associated with coal combustion. The contribution of coal combustion to atmospheric Pb decreased significantly, and iron/steel industries are the most important source of Pb after coal-to-gas. The atmospheric Pb in Beijing urban area is mainly transmitted from surrounding provinces such as Mongolia province, Hebei province, Liaoning province, Anhui province and Shandong province. These Pb in Pb-rich particles are mainly in the form of Pb(NO3)2, through photochemical and/or aqueous phase reactions of PbCl2 and HNO3 and/or NO2 in the gas phase. These results assess the effect of coal-to-gas on the source structure and mixing state of Pb particles, and indicate that Pb pollution still needs to be paid attention to because Pb(NO3)2 abundance increases with improved control quality. © 2023, The Authors. All rights reserved.

关键词： Gases

Purification System of Domestic Waste Incineration Flue Gas 4

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Purification System of Domestic Waste Incineration Flue Gas

4th International Symposium on Resource Exploration and Environmental Science, REES 2020

作者： Pan, Wenbo Zhong, Shaotao Geng, Man Chen, Dingsheng Guangdong Province Engineering Laboratory for Air Pollution Control South China Institute of Environmental Sciences Ministry of Ecology and Environmental of Prc Guangzhou China Guangdong SINO-CAN Detection Technology Co. Ltd. Guangzhou Guangdong510335 China Goaland Energy Conservation Tech. Co. Ltd. Guangzhou Guangdong510663 China Key Laboratory of Water and Air Pollution Control of Guangdong Province Guangzhou China Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education School of Resources Environmental and Chemical Engineering Nanchang University Nanchang330031 China

Flue gas will be emitted during the waste incineration power generation process. The flue gas contains toxic and harmful ingredients. If it is not treated, it will cause serious harm to human health and the environment. Therefore, the incineration flue gas needs to be purified. In this paper, combined with the monitoring of a large-scale waste incineration power plant incinerator flue gas purification treatment project, the combined process of "in-furnace denitrification (SNCR) + semi-dry deacidification + slaked lime and activated carbon (dry process) injection + bag filter". The purification effect of flue gas shows that the process has a good purification effect on domestic waste incineration flue gas. This study can provide reference and basis for the treatment of incineration flue gas in the industry. © Published under licence by IOP Publishing Ltd.

关键词： Flue gases

Synthesis of Magnetic Core-Shell Fe3o4-Mn3o4 Composite for Degradation of Sulfadiazine Via Peroxymonosulfate Activation: Characterization, Mechanism and Toxicity Analysis

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SSRN 2022年

作者： Chen, Jing Chu, Kun Sun, Shiquan Chen, Hong Song, Binghao Wang, Jianhui Zhu, Lei School of Hydraulic and Environmental Engineering Changsha University of Science & Technology Changsha410114 China Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province Changsha410114 China School of Food science and Bioengineering Changsha University of Science & Technology Changsha410114 China Huan Water Resources and Hydropower Survey Design Planning and Research Co Ltd. Changsha410007 China

Sulfate radical based AOPs (SR-AOPs) have utilized as a promising technology for refractory organic pollutants treatment. In this research, a novel magnetic core-shell Fe3O4-Mn3O4 composite was fabricated through a two-step hydrothermal method and then its surface structure, morphology and magnetism were characterized. The composite was introduced for efficient degradation of sulfadiazine (SDZ) via peroxymonosulfate (PMS) activation. Compared with pure Fe3O4 and Mn3O4, Fe3O4-Mn3O4 exhibited higher catalytic performance to eliminate SDZ. In the batch experiments, 20 μM of SDZ could be completely removed in 20 min with 0.8 mM PMS, 0.15 g/L catalyst dosage under a pH scope of 3.0 to 11.0. Both Cl¯ and H2PO4¯ displayed slightly inhibition effect on SDZ degradation efficiency. In the successive tests, Fe3O4-Mn3O4 exhibited outstanding stability and good reusability. Even after four runs, the SDZ degradation efficiency still reached to 94.3%. Scavenging tests and electron paramagnetic resonance (EPR) results revealed that the active species formed during the Fe3O4-Mn3O4/PMS system were SO4•‒ and •OH with SO4•‒ was the key one. The degradation mechanism was proved to be the redox reactions between Mn(II)/Mn(III)/Mn(IV), Fe(II)/Fe(III) and the synergistic effect of Mn(III)/Fe(II). Moreover, six intermediates were detected and three possible SDZ degradation pathways in the Fe3O4-Mn3O4/PMS system were explored. The toxicity of SDZ and intermediates were evaluated by ECOSAR program as well. © 2022, The Authors. All rights reserved.

关键词： Degradation

Hotspots lurking underwater: Insights into the contamination characteristics, environmental fates and impacts on biogeochemical cycling of microplastics in freshwater sediments

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Journal of hazardous materials 2024年 476卷 135132页

作者： Haojie Chen Danlian Huang Wei Zhou Rui Deng Lingshi Yin Ruihao Xiao Sai Li Fei Li Yang Lei College of Environmental Science and Engineering Hunan University Changsha 410082 PR China Key Laboratory of Environmental Biology and Pollution Control Hunan University Ministry of Education Changsha 410082 PR China. Key Laboratory of Environmental Biology and Pollution Control Hunan University Ministry of Education Changsha 410082 PR China Greater Bay Area Institute for Innovation Hunan University Guangzhou 511300 Guangdong PR China. Electronic address: huangdanlian@***. School of Resources and Environmental Engineering Hefei University of Technology Hefei Anhui 230009 PR China. College of Water Resources & Civil Engineering Hunan Agricultural University Changsha 410128 PR China.

The widespread presence of microplastics (MPs) in aquatic environments has become a significant concern, with freshwater sediments acting as terminal sinks, rapidly picking up these emerging anthropogenic particles. However, the accumulation, transport, degradation and biochemical impacts of MPs in freshwater sediments remain unresolved issues compared to other environmental compartments. Therefore, this paper systematically revealed the spatial distribution and characterization information of MPs in freshwater (rivers, lakes, and estuaries) sediments, in which small-size (<1 mm), fibers, transparent, polyethylene (PE), and polypropylene (PP) predominate, and the average abundance of MPs in river sediments displayed significant heterogeneity compared to other matrices. Next, the transport kinetics and drivers of MPs in sediments are summarized, MPs transport is controlled by the particle diversity and surrounding environmental variability, leading to different migration behaviors and transport efficiencies. Also emphasized the spatio-temporal evolution of MPs degradation processes and biodegradation mechanisms in sediments, different microorganisms can depolymerize high molecular weight polymers into low molecular weight biodegradation by-products via secreting hydrolytic enzymes or redox enzymes. Finally, discussed the ecological impacts of MPs on microbial-nutrient coupling in sediments, MPs can interfere with the ecological balance of microbially mediated nutrient cycling by altering community networks and structures, enzyme activities, and nutrient-related functional gene expressions. This work aims to elucidate the plasticity characteristics, fate processes, and potential ecological impact mechanisms of MPs in freshwater sediments, facilitating a better understanding of environmental risks of MPs in freshwater sediments.

关键词： Degradation Elemental cycles Freshwater sediments Plastics Transport

Embedding Co in Perovskite Moo3 For Superior Catalytic Oxidation of Refractory Organic Pollutants with Peroxymonosulfate: Role Of Co(Ii)/Co(Iii) Cycle

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SSRN 2022年

作者： Zeng, Qingyi Tan, Jing Gao, Beibei Cai, Tao Zhang, Qingyan Liu, Yilin Chang, Sheng Zhao, Shuaifei Wu, Suqing School of Resources & Environment and Safety Engineering University of South China Hunan Hengyang421001 China College of Mechanical Engineering University of South China Hunan Hengyang421001 China School of Energy & Power Engineering Nanjing University of Aeronaut & Astronaut Jiangsu Nanjing210016 China VIC3216 Australia National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution Key Laboratory of Zhejiang Province for Water Environment and Marine Biological Resources Protection College of Life and Environmental Science Wenzhou University Wenzhou325000 China

A cobalt(Co)-doped perovskite molybdenum trioxide (α-MoO 3 ) catalyst (Co-MO) was synthesized by a facile pyrolysis strategy and used for degrading various organic contaminants via peroxymonosulfate (PMS) activation. The doped Co was inserted in the inter space between the octahedron [MoO 6 ], facilitating the growth of the α-MoO 3 crystal on the [010] direction. This unique structure accelerated the activation of PMS by triggering the Co(II)/Co(III) cycle while the Co-MO functioned as an carrier for electron transfer in the Co-MO/PMS system. As a result, the Co-MO/PMS system showed noticeable activity for removing 100% bisphenol A (BPA) under a broad conditions within 30 min. The radical quenching test and electron paramagnetic resonance analysis revealed that singlet oxygen ( 1 O 2 ) was the main active species for BPA degradation in the Co-MO/PMS system, while free radicals, such as O 2 •- , SO 4 •- and •OH, were also produced as the intermediate species. The excellent adaptability of the Co-MO/PMS system was further demonstrated by its high stability, low leaching of metal ions, well function in various water matrices, and high activity in degrading various refractory organic pollutants. Our findings pave a useful avenue for the rational design of novel cobalt-doped catalysts with high catalytic performance toward wide environmental applications. © 2022, The Authors. All rights reserved.

关键词： Organic pollutants

Emerging challenges of ozone impacts on asian plants:actions are needed to protect ecosystem health

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Ecosystem Health and Sustainability 2021年第1期7卷 107-120页

作者： Zhaozhong Feng Evgenios Agathokleous Xu Yue Elina Oksanen Elena Paoletti Hiroyuki Sase Anthony Gandin Takayoshi Koike Vicent Calatayud Xiangyang Yuan Xuejun Liu Alessandra De Marco Yves Jolivet Sari Kontunen-Soppela Yasutomo Hoshika Hikaru Saji Pin Li Zhengzhen Li Makoto Watanabe Kazuhiko Kobayashi Key Laboratory of Agrometeorology of Jiangsu Province School of Applied MeteorologyNanjing University of Information Science&TechnologyNanjingChina School of Environmental Science and Engineering Nanjing University of Information Science&TechnologyNanjingChina Department of Environmental and Biological Sciences University of Eastern FinlandJoensuuFinland Institute of Research on Terrestrial Ecosystems National Research CouncilSesto FiorentinoItaly Ecological Impact Research Department Asia Center for Air Pollution Research(ACAP)NiigataNishi-kuJapan AgroParisTech INRAUMR SilvaUniversitéDe LorraineNancyFrance Department of Forest Science Hokkaido UniversitySapporoJapan Fundación CEAM ValenciaPaternaSpain State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingChina College of Resources and Environmental Sciences Key Laboratory of Plant-Soil Interactions of MOEBeijing Key Laboratory of Cropland Pollution Control and RemediationChina Agricultural UniversityBeijingChina Department for Sustainability(SSPT) Italian National Agency for New TechnologiesEnergy and Sustainable Economic Development(ENEA)RomeItaly Center for Environmental Biology and Ecosystem Studies National Institute for Environmental StudiesIbarakiTsukubaJapan Institute of Agriculture Tokyo University of Agriculture and TechnologyTokyoFuchuJapan Graduate School of Agricultural and Life Sciences the University of TokyoTokyoBunkyo-kuJapan

Context:Ozone concentrations near the land surface are rising in Asia while they are declining or stagnating in Europe and North *** is the most widespread air pollutant negatively affecting vegetation,and its increased concentrations pose a major threat to food quality and production and other ecosystem services in ***:In this review,we provide an overview of scientific challenges in the impacts of ozone pollution on Asian vegetation,and synthesize the challenges toward mitigation of the ***:We argue that new policy initiatives need to seek both reduction of ozone levels and enhancement of plant tolerance to ozone to maintain food quality and ensure food ***:The scientific advancements must be transferred to actions by two types of institutions:a)environmental agencies for reducing ozone levels and b)agricultural research institutions for enhancing plant tolerance to *** connecting the scientific advancements with the institutional actions,scientists in Asian countries should play the key role taking advantages of interdisciplinary and international collaborations.

关键词： Asia air pollution monitoring ecosystem health environmental regulation ozone impact mitigation vegetation

Weakened Casual Feedback Loops Subjected to Intensive Restoration Efforts and Climate Changes in a Freshwater Lake

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SSRN 2023年

作者： Fu, Hui Ge, Yili Cai, Guojun Deng, Jianmin Liu, Huanyao Wu, Aiping Li, Youzhi Li, Wei Yuan, Guixiang Jeppesen, Erik Ecology Department College of Resources & Environments Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area Hunan Agricultural University Changsha410128 China Taihu Laboratory for Lake Ecosystem Research State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing210008 China Research Institute of Ecology & Environmental Sciences Nanchang Institute of Technology Nanchang330099 China Aarhus University Vejlsøvej 25 Silkeborg8600 Denmark University of Chinese Academy of Sciences Beijing China Limnology Laboratory Department of Biological Sciences Centre for Ecosystem Research and Implementation Middle East Technical University Ankara Turkey Institute of Marine Sciences Middle East Technical University Erdemli-Mersin33731 Turkey Institute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental Science Yunnan University Kunming China

Understanding how phytoplankton interacts with local and regional drivers as well as their feedbacks is a great challenge, and quantitative analyses of the regulating role of human activities and climate changes on these feedback loops are also limited. By using monthly monitoring dataset (2000-2017) from Lake Taihu and empirical dynamic modelling to construct causal networks, we quantified the strengths of causal feedbacks among phytoplankton, local environments, zooplankton, meteorology as well as global climate oscillation. Prevalent bidirectional causal linkages between phytoplankton and the tested drivers were found, providing holistic and quantitative evidence of the ubiquitous feedback loops. Phytoplankton exhibited the highest feedbacks with total inorganic nitrogen and ammonia and the lowest with nitrate. The feedbacks between phytoplankton and environmental factors from 2000 to 2017 could be classified by two groups: the local environments (e.g., nutrients, pH, transparency, zooplankton)-driven enhancement loops promoting the response of the phytoplankton, and the climate (e.g., wind speed)-driven regulatory loops suppressing it. The two counterbalance groups modified the emergent macroecological patterns. Our findings revealed that the causal feedback networks loosened significantly after 2007 following nutrient loading reduction and unsuccessful biomanipulation restoration attempts by stocking carp. The strength of enhancement loops underwent marked decreases leading to reduced phytoplankton responses to the tested drivers, while the climate (decreasing wind speed, warming winter)-driven regulatory loops increased– like a tug-of-war. To counteract the self-amplifying feedback loops, the present eutrophication mitigation efforts, especially nutrient reduction, should be continued, and introduction of alternative measures to indirectly regulate the critical components (e.g., pH, Secchi depth, zooplankton biomass) of the loops would be beneficial. © 2023, T

关键词： Lakes