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SSRN 2022年

作者： Fang, Wen Yang, Danxing Williams, Paul N. Yang, Yi State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Jiangsu 210023 China Institute for Global Food Security Queen’s University Belfast David Keir Building Malone Road BelfastBT9 5BN United Kingdom

Land application of organic waste has been increasingly encouraged since it could sequester carbon to mitigate climate change. Considering the susceptibility of arsenic (As) rice bioavailability to organic matter, understanding the influence of different exogenous organic matter on As biogeochemical behavior in rice-soil system is crucial to reasonably recycle organic waste on soils and ensure the food safety. In this study, impacts of two typical organic matter amendments, rice straw and humic substance, on the As speciation and bioavailability in paddy soil were investigated. Results showed that addition of both rice straw and humic substance could increase the DOC content in soil solution by 16.4%–34.4% and 21.7%–53.2%, respectively, but the response of As speciation and bioavailability was quite different, showing the decoupling between As release and DOC. Rice straw addition increased As release to porewater by 28.0%–28.4%, particularly at the initial 0–20 days after the soil was flooded, but humic substance presented the opposite effect, decreasing As release by 27.4%–43.1% which was mainly attributable to the As III immobilization. This study suggests that the organic matter with high contents of labile heteroaliphatic/aliphatic carbon, being easily to be biodegraded, should not be applied on As contaminated soils. © 2022, The Authors. All rights reserved.

关键词： Arsenic

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Carbon Materials on Promoting Reductive Degradation of Nitro-/Halo-substituted Organic Pollutants: A Review

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Cailiao Daobao/Materials Reports 2020年第2期34卷 03028-03036页

作者： Yue, Xianhui Jin, Xin Gu, Cheng State Key Laboratory of Pollution Control and Resource Reuse School of the Environment of Nanjing University Nanjing210023 China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil Science Chinese Academy of Sciences Nanjing210008 China

Due to the advantages of high surface area, heterogeneous surface properties, excellent electron conductivity and electron storage capacity, carbon materials, including nano-carbon (e.g. graphene, carbon nano-tube, etc.) and amorphous carbon (including active carbon, biochar and black carbon, etc.) has been largely used in chemical industry, energy conservation, and environmental protection. In environmental application, carbon materials were mostly used as adsorbents. While in the last decade, carbon materials as the electron shuttle or redox mediator to facilitate electron transfer from electron donors (e.g. sulfide, iron/sulfide-reducing bacteria, etc) to electron acceptors (e.g. organic compounds, ≡FeIII, etc) has received increasingly concern. The electron transfer mechanisms by carbon materials are essential to the understanding of the environmental processes of organic pollutants and to the development of environmental remediation technologies for those compounds. Current researches mostly focused on the performance of carbon materials to the reductive transformation of nitro-aromatic compounds (NACs) and halo-substituted organic compounds (R-X). However, the mechanisms are varied depending on the properties of electron donors, organic compounds and carbon materials. Generally, three mechanisms have been accepted in different systems: Ⅰ. The oxygen functional groups on carbon surface play as the redox mediators to facilitate electron transfer. Ⅱ. The graphitic region and defect sites of carbon surface are highly conductive for electron transfer. Ⅲ. In the sulfide reduction conditions, carbon-sulfide intermediates would be the reactive sites for reductive degradation. In addition, surface area, porous structure and surface electric heterogeneous of carbon materials, as well as the structural properties of organic pollutants, the biotic/abiotic reaction systems would directly or indirectly influence the principle mechanisms. Since the matrix and surface of carb

关键词： Organic pollutants

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Mechanistic Insights into the CO2-Assisted NO Electrochemical Deoxygenation and Hydrogenation

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Angewandte Chemie 2025年第24期137卷

作者： Pan Li Yi Liu Liangyiqun Xie Guangtao Wang Xuanzhao Lu Jian Li Xuanhao Wu Yujing Jiang Wenlei Zhu State Key Laboratory of Pollution Control and Resource Reuse State Key Laboratory of Analytical Chemistry for Life Science School of Environment School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China Department of Environmental Engineering Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control Zhejiang University Hangzhou 310058 China

Electrocatalytic NO reduction to NH 3 holds significant potential for pollutant treatment and resource recovery. Herein, we report that the introduction of CO 2 on octahedral oxide-derived copper (o-OD-Cu) significantly enhances the electrochemical reduction of NO to NH 3 . With 10% NO in a CO 2 environment, the Faradaic efficiency for NH 3 production in a flow cell remains around 80% over a wide current density range from 20 to 250 mA cm −2 . At a current density of 250 mA cm −2 , the yield can reach up to 1403.9 µmol cm −2 h −1 , which is 3.71 times higher than without CO 2 and surpasses the performance reported in similar literature. Moreover, even at a low concentration of 1% NO, the Faradaic efficiency can reach a maximum of 70.11% at a current density of 20 mA cm −2 . In situ investigations and theoretical calculations revealed that, in the coexistence of NO and CO 2 , the NO reduction pathway involves a unique route wherein *CO and *COOH, produced from CO 2 reduction, can respectively promote the deoxygenation of *NO and hydrogenation of *N by acquiring O atoms from *NO and providing H atoms for the sustained hydrogenation of *N, thereby accelerating the conversion process of NO to NH 3 .

关键词： NO electroreduction NH3 production Reaction intermediates Deoxygenation Hydrogenation

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Insight into the role and mechanism of combined GAC and magnetic particles in achieving gravity-driven membrane performance enhancement

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Chinese Chemical Letters 2024年

作者： Xishou Guo Haochun Wang Zixin Ma Jinlong Wang Yuchao Tang Guibai Li Heng Liang Xiaobin Tang State Key Laboratory of Urban Water Resource and Environment (SKLUWRE) Harbin Institute of Technology Harbin 150090 China Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse) Anhui Jianzhu University Hefei 230601 China

Gravity-driven membrane filtration (GDM) has increasingly captured researchers' attention due to its low energy consumption and operation & maintenance. However, severe membrane fouling and permeate DOC increase restricted GDM's widespread application. This study combined granular active carbon (GAC) and magnetic particles to address this issue and results suggested that GDM3 achieved highly effective pollutant removals (85% COD Mn , 95% UV 254 , and 65% DOC) and significant flux improvement (96%) than GDM itself. GAC pretreatment before the membrane mainly helped to reduce pollutant load and improve permeated quality while magnetic particles in situ on the membrane surface contributed to engineering more open and connected structures with less extracellular polymeric substance (EPS) and soluble microbial products (SMP) than other GDM groups due to their bioeffect. GDM3 was cost-effective and had the lowest total cost with a decrease of 7.5% and 5.7% to GDM1 and GDM2. The findings provided a deep insight into the combined GAC and magnetic particles in GDM performance improvement and played a fundamental in developing sustainable and environmentally friendly GDM processes.

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Efficient capture of aqueous humic acid using a functionalized stereoscopic porous activated carbon based on poly(acrylic acid)/food-waste hydrogel

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Journal of Environmental Sciences 2019年第3期31卷 104-114页

作者： Tao Zhou Xin Zhao Shuya Wu Lianghu Su Youcai Zhao The State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai Chengpei Enterprise Management Consulting Co. Ltd. Nanjing Institute of Environmental Sciences Ministry of Environmental Protection Shanghai Institute of Pollution Control and Ecological Security

Stereoscopic porous carbons have shown good potential in humic acid(HA) removal. In this work, a novel stereoscopic porous activated carbon(SPAC) was designed and synthesized via the self-assembly of a hydrogel based on food waste during in-situ polymerization, vacuum drying, carbonization, and activation. Then, the SPAC was functionalized with 3-aminopropyltriethoxysilane(APTES) and the adsorption behavior of the modified SPAC(SPAC-NH_2) was studied systematically. The effects of pH, contact time, initial concentration of HA, and adsorbent dose were investigated, showing that optimal HA removal efficiency(>98.0%) could be achieved at an initial HA concentration of 100 mg/L. The experimental adsorption isotherm data was fitted to the Langmuir model with a maximum adsorption capacity of 156.0 mg HA/g SPAC-NH_2. Analysis of the mechanism indicated that the removal of HA was mainly realized through the amidization reaction between the \COOH groups of HA and the \NH_2 groups of APTES. All of the above results showed that SPAC-NH_2 powder is an efficient,eco-friendly, and reusable adsorbent which is suitable for the removal of HA from wastewater.

关键词： Stereoscopic porous activated carbon Humic acid Food waste 3-aminopropyltriethoxysilane Adsorption

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Biochar and Amf Combination Promotes the Phosphorus Utilization to Increase Phragmites Growth: Insights from the Microbial Co-Occurrence Networks to Rhizosphere Lipid Metabolites

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SSRN 2022年

作者： Li, Shuangqiang Chi, Shanqing Lin, Caiqiang Cai, Chen Yang, Liheng Peng, Kaiming Huang, Xiangfeng Liu, Jia College of Environmental Science and Engineering Tongji University State Key Laboratory of Pollution Control and Resource Reuse Ministry of Education Key Laboratory of Yangtze River Water Environment Shanghai200092 China Fuzhou Urban and Rural Construction Group Co. Ltd Fuzhou350007 China Frontiers Science Center for Intelligent Autonomous Systems Shanghai200092 China

Agricultural biochar and arbuscular mycorrhizal fungi were used to promote the growth of Phragmites in the structural damaged and nutritional imbalanced littoral zone soils. Wheat biochar played significant role in improving soil porosity and supplementing exogenous phosphorus, with increasing available phosphorus from 17.50 ± 0.88 mg/kg to 79.20 ± 3.20 mg/kg. The addition of Diversispora versiformis improved the plant net photosynthetic rate reaching up to 25.66 ± 0.65 μmol·m-2 ·s-1, which was 36.60 % higher than CK. The combination of biochar and fungi contributed to the whole plant dry weight biomass of 32.30 % and 234.00 % higher than the single biochar and AMF amendment groups, respectively. Meanwhile, the analysis of microbial co-occurrence networks showed the most relevant networks node species were mainly Talaromyces, Chaetomiacea and Gemmatimonadetes etc. Root lipid metabolite of Glycerophospholines further proved that phosphorus utilization was also enhanced endogenously in the rhizosphere soil. These results indicated that the combination of biochar and arbuscular mycorrhizal fungi play synergic role in enhancing phosphorus utilization endogenously and exogenously. © 2022, The Authors. All rights reserved.

关键词： Phosphorus

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Enhancing rice production sustainability and resilience via reactivating small water bodies for irrigation and drainage (vol 14, 3794, 2023)

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NATURE COMMUNICATIONS 2023年第1期14卷 1-11页

作者： Li, Sisi Zhuang, Yanhua Liu, Hongbin Wang, Zhen Zhang, Fulin Lv, Mingquan Zhai, Limei Fan, Xianpeng Niu, Shiwei Chen, Jingrui Xu, Changxu Wang, Na Ruan, Shuhe Shen, Wangzheng Mi, Menghan Wu, Shengjun Du, Yun Zhang, Liang Hubei Provincial Engineering Research Center of Non-Point Source Pollution Control Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430077 PR China Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei Wuhan 430077 PR China University of Chinese Academy of Sciences Beijing 100049 PR China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 PR China State Environmental Protection Key Laboratory of Soil Health and Green Remediation Huazhong Agricultural University Wuhan 430070 PR China Interdisciplinary Research Center for Territorial Spatial Governance and Green Development Huazhong Agricultural University Wuhan 430070 PR China Institute of Plant Protection Soil and Fertilizer Sciences Hubei Academy of Agricultural Sciences Wuhan 430064 PR China Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 PR China Liaoning Academy of Agricultural Sciences Shenyang 110161 PR China Institute of Soil & Fertilizer and Resources & Environment Jiangxi Academy of Agricultural Sciences Nanchang 330200 PR China

Rice farming threatens freshwater resources, while also being increasingly vulnerable to drought due to climate change. Rice farming needs to become more sustainable and resilient to climate change by improving irrigation drainage systems. Small water bodies, used to store drainage water and supply irrigation in traditional rice farming systems have gradually been abandoned in recent decades. This has resulted in a higher water footprint (WF) associated with rice farming due to increased freshwater usage and wastewater release, also leaving rice production more vulnerable to extreme weather events. Here, we propose how protecting and reactivating small water bodies for rice irrigation and drainage can decrease rice production WF in China by 30%, save 9% of China’s freshwater consumption, increase irrigation self-sufficiency from 3% to 31%, and alleviate yield loss in dry years by 2–3%. These findings show that redesigning rice irrigation drainage systems can help meet water scarcity challenges posed by climate change.

关键词： Environmental health Hydrology Wetlands ecology

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The Ignorable Toxics of Bde-209 within End-of-Life Vehicles in China

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SSRN 2023年

作者： Li, Yu Yuan, Zengwei Zhang, Ling Jiang, Songyan Liu, Xin Yang, Dong Liu, Lei State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China College of Economics and Management Nanjing Foresty University Nanjing210037 China School of Management Science and Engineering Nanjing University of Information Science and Technology Nanjing210044 China Institute of Science and Technology for Development of Shandong Qilu University of Technology Shandong Academy of Sciences Jinan250014 China

Decabrominated diphenyl ether (BDE-209) is extensively used in the automotive sector as a legacy brominated flame retardant. Recycling materials from end-of-life vehicles contain high levels of BDE-209, posing substantial risks to human health and the environment. This study focuses on estimating the stocks, flows and the associated environmental impact of BDE-209 throughout the automobile sector’s life cycle in China from 2010 to 2050. In 2020, the scrap stage accounted for 60% of the newly introduced BDE-209 (7,370 tons). Car and Sport Utility Vehicle (SUVs) were the primary contributors to both in-use and scrap stages during 2020-2050. Emissions of BDE-209 are projected to rise to 7,854 kg by 2050, making an 11-fold increase from 2010 and predominantly affecting the atmosphere (56%) and soil (33%). Scenario analysis shows that elimination measures, such as enhancing scrapped vehicles recovery and refining automobile shredder residues (ASR) treatment, could potentially reduce the increment of BDE-209. © 2023, The Authors. All rights reserved.

关键词： Ethers

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中国城市污水治理效益评价指标体系构建（英文）

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Engineering 2023年第8期 18-22页

作者： Zuxin Xu Jin Xu State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Key Laboratory of Yangtze River Water Environment Ministry of Education Tongji University Shanghai Institute of Pollution Control and Ecological Security

1. Introduction The urban sewage treatment system, including sewage pipe networks and sewage treatment plants, is an important infrastructure to ensure urban social and economic operation. In the past few decades, due to the unremitting efforts of the Chinese government,the construction of China’s urban sewage treatment infrastructure has developed rapidly [1].

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Capturing differences in the release potential of dissolved organic matter from biochar and hydrochar: Insights from component characterization and molecular identification

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Science of the Total Environment 2024年 955卷 177209页

作者： Ji, Rongting Yang, Yiting Wu, Yudong Zhu, Changyin Min, Ju Liu, Chenwei Zhang, Longjiang Cheng, Hu Xue, Jianming Zhou, Dongmei Nanjing Institute of Environmental Science Ministry of Ecology and Environment of the People's Republic of China Nanjing210042 China Co-Innovation Center for the Sustainable Forestry in Southern China College of Biology and the Environment Nanjing Forestry University Nanjing210037 China School of Environmental Science and Engineering Tongji University Shanghai200092 China Yangjiang Town Agricultural Technology Extension Service Center in Gaochun District of Nanjing Nanjing211311 China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing210008 China Christchurch8440 New Zealand State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China

Biochar and hydrochar have garnered widespread attention owing to their excellent performance in environmental remediation, carbon sequestration, and resource utilization from biowaste. Studies on the release potential of dissolved organic matter (DOM) have been limited, and the distinction between biochar and hydrochar remains unclear. In this study, pine sawdust was utilized as a model precursor with the aim of comparing the release quantity, components, and properties of DOM from biochar (BDOM) and hydrochar (HDOM) under various simulated conditions. The amount of DOM released by hydrochar (38.20–190.49 g/kg) was significantly greater than that released by biochar (0.57–11.96 g/kg), and more DOM was released at higher temperatures and pH values. BDOM consists of three categories of components, namely, humic-like, protein-like, and benzoic acid-like and tyrosine-like substances compounds, whereas HDOM consists of four categories of components, namely, two categories of humic-like compounds and two categories of protein-like compounds. By using ESI-FT-ICR-MS technology, 8586 compounds in BDOM and 6428 compounds in HDOM were identified. A total of 4665 unique compounds were found in BDOM, 1416 unique compounds were found in HDOM under alkaline release conditions, and HDOM contained more unique compounds than those found in other environments. CRAM/lignin-like compounds made up the majority of the released DOM and reached 31.01–65.35 % for BDOM and 54.79–73.05 % for HDOM. These findings revealed significant differences in the release potential of DOM from biochar and hydrochar, and further behavior research is needed to guide future applications of char materials in the environment and agriculture fields. © 2024 Elsevier B.V.

关键词： Alkalinity

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