检索结果-内蒙古大学图书馆

Organic amendments for in situ immobilization of heavy metals in soil: A review

Chemosphere 2023年第1期335卷 139088页

作者： Gao, Jun Han, Haoxuan Gao, Chang Wang, Yuhao Dong, Bin Xu, Zuxin State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China College of Environmental Science and Engineering Guilin University of Technology Guilin541006 China

There is a growing need for soil remediation due to the increase in heavy metals (HMs) migrating into the soil environment, especially those from man-made sources dominated by industry and agriculture. In situ immobilization technology, because of its lower life cycle environmental footprint, can achieve "green and sustainable remediation" of soil heavy-metal pollution. Among the various in situ immobilization remediation agents, organic amendments (OAs) stand out as they can act as soil conditioners while acting as HMs immobilization agents, and therefore have excellent application prospects. In this paper, the types and remediation effects of OAs for HMs in situ immobilization in soil are summarized. OAs have an important effect on the soil environment and other active substances in soil while interacting with HMs in soil. Based on these factors, the principle and mechanism of HMs in situ immobilization in soil using OAs are summarized. Given the complex differential characteristics of soil itself, it is impossible to determine whether it can remain stable after heavy-metal remediation;therefore, there is still a gap in knowledge regarding the compatibility and long-term effectiveness of OAs with soil. In the future, it is necessary to develop a reasonable HMs contamination remediation program for in situ immobilization and long-term monitoring through interdisciplinary integration techniques. These findings are expected to provide a reference for the development of advanced OAs and their applications in engineering. © 2023 Elsevier Ltd

关键词： Soils

来源：评论

学校读者我要写书评

暂无评论

Identification of pollutant markers in rural mountainous areas of China by combining non-targeted analysis with zebrafish embryo toxicity tests

引用

Science of the Total Environment 2025年 965卷 178625页

作者： Li, Jiaqi Zhou, Min Chen, Zhongli Guo, Jinsong Fang, Fang Schäffer, Andreas Shao, Ying Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment Ministry of Education Chongqing University Chongqing400045 China Institute for Environmental Research RWTH Aachen University Aachen52074 Germany State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210093 China

Emerging pollutants (EPs) are increasingly found around the world, yet their composition and the risks pose to soil environments remain unclear, making a challenge to EP management, particularly in mountainous rural areas. In this study, we collected soils from three types of mountainous villages, each representing different levels of economic development: an industrial village, an ecotourism village, and an agricultural village. We analyzed these samples using non-target analysis and Danio rerio embryotoxicity test (ZET). A total of 216 compounds (level 2) were identified by matching with mzCloud database, with 149, 107, and 157 found in YY (industrial village), DX (ecotourism village) and LH (agricultural village), respectively. Interestingly, 78 compounds were present in all three villages, while the number of unique substances ranged from 7 to 47 in each village, serving as potential pollution markers. The most prevalent substances identified were aliphatics, heterocyclics, and aromatics. The ZET results showed that all soil extracts had significant acute toxic effects. Further analysis revealed a correlation between the toxic substances and the economic types of the villages. Specifically, linear chain dicarboxylic acids, drugs, and oxygenated polycyclic aromatic hydrocarbons (OPAHs) were the primary toxicants in the industrial village, whereas phthalate esters dominated in the other two villages. These findings provide valuable insights for effective monitoring of EPs in mountainous rural areas. © 2025 Elsevier B.V.

关键词： Methyl ester

来源：评论

学校读者我要写书评

暂无评论

Enhancing the Efficiency of Enterprise Shutdowns for Environmental Protection:An Agent-Based Modeling Approach with High Spatial–Temporal Resolution Data

引用

Engineering 2024年第11期42卷 295-307页

作者： Qi Zhou Shen Qu Miaomiao Liu Jianxun Yang Jia Zhou Yunlei She Zhouyi Liu Jun Bi School of Management and Economics Beijing Institute of TechnologyBeijing 100081China Center for Energy and Environmental Policy Research Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China The Center of Enterprise Green Governance Chinese Academy of Environmental PlanningBeijing 100012China State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation Chinese Academy of Environmental PlanningBeijing 100012China

Top-down environmental policies aim to mitigate environmental risks but inevitably lead to economic losses due to the market entry or exit of *** study developed a universal dynamic agent-based supply chain model to achieve tradeoffs between environmental risk reduction and economic *** model was used to conduct high-resolution daily simulations of the dynamic shifts in enterprise operations and their cascading effects on supply chain *** includes production,con-sumption,and transportation agents,attributing economic features to supply chain components and cap-turing their *** also accounts for adaptive responses to daily external shocks and replicates realistic firm *** coupling high spatial-temporal resolution firm-level data from 18916 chemical enterprises,this study investigates the economic and environmental impacts of an environmen-tal policy resulting in the closure of 1800 chemical enterprises over three *** results revealed a significant economic loss of 25.8 billion USD,ranging from 23.8 billion to 31.8 billion ***,over 80%of this loss was attributed to supply chain *** analyses indicated that imple-menting a staggered shutdown strategy prevented 18.8%of supply chain losses,highlighting the impor-tance of a gradual policy implementation to prevent abrupt supply chain ***,the study highlights the effectiveness of a multi-objective policy design in reducing economic losses(about 29%)and environmental risks(about 40%),substantially enhancing the efficiency of the environmental *** high-resolution simulations provide valuable insights for policy designers to formulate strategies with staggered implementation and multiple objectives to mitigate supply chain losses and environmental risks and ensure a sustainable future.

关键词： Agent-based model Supply chain network Economic sustainability Environmental policy

来源：评论

学校读者我要写书评

暂无评论

Fe-MOFs nanosheets for photo-Fenton degradation of carbamazepine

引用

Chemosphere 2024年 364卷 143240页

作者： Sun, Siyu Hu, Youyou Li, Zhengkui State Key Laboratory of Pollution Control and Resource Reuse Nanjing University Nanjing210023 China School of the Environment Nanjing University Nanjing210023 China Shanghai Fisheries Research Institute Shanghai Fisheries Technical Extension Station Shanghai200433 China

Iron(II)-based metal organic framework (Fe(II)-MOF) nanosheets have emerged as promising candidates for photo-Fenton catalysis. However, efficiently synthesizing Fe(II)-MOF nanosheets remains a significant challenge. Here, a bottom-up synthesis strategy is proposed to prepare two-dimensional Fe-MOF nanosheets (TFMN) with micrometer lateral dimensions and nanometer thickness, featuring Fe(II) as the metal nodes. The application of TFMN in the photo-Fenton degradation of carbamazepine (CBZ) demonstrates remarkable CBZ degradation performance and excellent efficiency across a wide range of pH values. The electron density and density of states are further calculated by density functional theory. Mechanism analysis identifies h+, •OH and •O2− as the predominant active species contributing to the catalytic oxidation process in the Vis/TFMN/H2O2 system. © 2024 Elsevier Ltd

关键词： Metal-Organic Frameworks

来源：评论

学校读者我要写书评

暂无评论

How Fe-Bearing Materials Affect Soil Arsenic Bioavailability to Rice: A Meta-Analysis

SSRN

引用

SSRN 2023年

作者： Cai, Yijun Jiang, Jinlin Zhao, Xiaopeng Zhou, Dongmei Gu, Xueyuan State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China Key Laboratory of Soil Environmental Management Nanjing Institute of Environmental Sciences Nanjing210042 China

Arsenic (As) contamination is widespread in soil and poses a threat to agricultural products and human health due to its high susceptibility to absorption by rice. Fe-bearing materials (Fe-Mat) display significant potential for reducing As bioavailability in soil and bioaccumulation in rice. However, the remediation effect of various Fe-Mat is often inconsistent, and the response to diverse environmental elements is ambiguous. Here, we conducted a meta-analysis to quantitatively assess the effects of As in soils, rice roots, and grains based on 673, 321, and 305 individual observations from 67 peer-reviewed articles, respectively. On average, Fe-Mat reduced As bioavailability in soils, rice roots, and grains by 28.74%, 33.48%, and 44.61%, respectively. According to the analysis of influencing factors, the remediation efficiency of Fe-Mat on As-contaminated soil was significantly enhanced with increasing Fe content in the material, in which the industry byproduct was the most effective in soils (−42.31%) and rice roots (−44.57%), while Fe-biochar was superior in rice grains (−54.62%). The efficiency of Fe-Mat in minimizing soil As mobility was negatively correlated with soil Fe content, CEC, and pH. In addition, applying Fe-Mat in alkaline soils with higher silt, lower clay and available P was more effective in reducing As in rice grains. A higher efficiency of applying Fe-Mat under continuous flooding conditions (27.39%) compared with alternate wetting and drying conditions (23.66%) was also identified. Our results offer an important reference for the development of remediation strategies and methods for various As-contaminated paddy soils. © 2023, The Authors. All rights reserved.

关键词： Arsenic

来源：评论

学校读者我要写书评

暂无评论

Micromagnetic Field Enhanced the Denitrification of High Nitrate Wastewater Fed by Waste Molasses

SSRN

引用

SSRN 2022年

作者： Yang, Dongli Chen, Sien Chen, Jiahui Wang, Haiyue Ma, Sijia Lin, Yuan Ren, Hongqiang Xu, Ke State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Jiangsu Nanjing210023 China

The biological denitrification of high nitrate wastewater (HNW) mainly hindered by insufficient carbon source and nitrite accumulation. The micromagnetic carriers with four micromagnetic field (MMF) strengths were used to enhance the denitrification of HNW using waste molasses (WMs) as carbon source. The results showed that MMF significantly improved the nitrogen removal performance (p 3- removal with the minimum NO2- accumulation was achieved at 0.6 mT MMF. MMF enhanced ATP synthesis and stimulated denitrifying enzymes (e.g., NAR, NIR, NOR), which facilitated denitrification. Effluent COD, tryptophan and fulvic-like substances were also the lowest at 0.6 mT MMF. 16S rRNA gene sequencing indicated that denitrifying bacteria (e.g., Castellaniella Klebsiella) were significantly enriched under MMF. Besides, the proliferation of Acholeplasma, Klebsiella and Proteiniphilum at 0.6 mT MMF could promote the hydrolysis and acidification of WMs. This study provides new clues for enhanced WMs utilization and HNW denitrification by MMF. © 2022, The Authors. All rights reserved.

关键词： Nitrates

来源：评论

学校读者我要写书评

暂无评论

Boosted visible-light-induced photo-Fenton degradation of organic pollutants over a novel direct Z-scheme NH2-MIL-125(Ti)@FeOCl heterojunction catalyst

引用

Chemosphere 2024年 365卷 143347页

作者： Zelekew, Osman Ahmed Haitosa, Haileyesus Hatano He, Lina Ma, Hui Cai, Junyi Wang, Ziqi Wu, Yi-nan College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resource Reuse Tongji University 1239 Siping Rd. Shanghai200092 China Shanghai Institute of Pollution Control and Ecological Security 1239 Siping Rd. Shanghai200092 China Department of Materials Science and Engineering Adama Science and Technology University Adama Ethiopia

Improving the charge separation, charge transfer, and effective utilization is crucial in a photocatalysis system. Herein, we prepared a novel direct Z-scheme NH2-MIL-125(Ti)@FeOCl (Ti-MOF@FeOCl) composite photocatalyst through a simple method. The prepared composite catalyst was utilized in the photo-Fenton degradation of Rhodamine B (RhB) and ciprofloxacin (CIP). The Ti-MOF@FeOCl (10FeTi-MOF) catalyst exhibited the highest catalytic performance and degraded 99.1 and 66% of RhB and CIP, respectively. However, the pure NH2-MIL-125(Ti) (Ti-MOF) and FeOCl catalysts achieved only 50 and 92% of RhB and 50 and 37% of CIP, respectively. The higher catalytic activities of the Ti-MOF@FeOCl composite catalyst could be due to the electronic structure improvements, photoinduced charge separations, and charge transfer abilities in the catalyst system. The composite catalysts have also enhanced adsorption and visible light-responsive properties, allowing for efficient degradation. Furthermore, the electron paramagnetic resonance (EPR) signals, the reactive species trapping experiments, and Mott-Schottky (M − S) measurements revealed that the photogenerated superoxide radical (•O2−), hydroxyl radical (•OH), and holes (h+) played a vital role in the degradation process. The results also demonstrated that the Ti-MOF@FeOCl heterojunction composite catalysts could be a promising photo-Fenton catalyst system for the environmental remediation. Environmental implications The discharging of toxic contaminants such as organic dyes, antibiotics, and other emerging pollutants to the environment deteriorates the ecosystem. Specifically, the residues of organic pollutants recognized as a threat to ecosystem and a cause for carcinogenic effects. Among them, ciprofloxacin is one of antibiotics which has biological resistance, and metabolize partially in the human or animal bodies. It is also difficult to degrade ciprofloxacin completely with traditional treatment methods. Similarly, organic dye

关键词： Electron spin resonance spectroscopy

来源：评论

学校读者我要写书评

暂无评论

Rare Earth-Doped Ni/MgAl2O4 Catalysts Prepared Via a One-Step Sol–Gel Method for Steam Reforming of Volatile Organic Solvents at Low Temperature

SSRN

引用

SSRN 2023年

作者： Lin, Feng Ma, Xiangwei Chen, Zezhi Gong, Huijuan Xu, Mingze State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China Center of Material Analysis Nanjing University Nanjing210023 China

The volatile organic solvents recovered from pharmaceutical and chemical industries are often incinerated as waste, which poses a serious threat to the environment. An innovative and cost-effective alternative involves transforming the recovered solvents into gas fuel (H2, CO, CH4) for electricity generation through catalytic steam reforming. However, there are still no literature reports on catalysts highly efficient in reforming organic solvents of different structures. In this study, Ni/MgAl2O4 catalysts modified with La, Ce or Pr rare earths were synthesized using a novel one-step sol–gel method. Among these catalysts, the Ni-La/MgAl2O4 exhibited exceptional low-temperature performance, achieving a conversion efficiency of 97.3 % at 550 oC for the recovered solvent (the mixture of toluene, acetone, tetrahydrofuran, n-hexane). The outstanding performance of Ni-La/MgAl2O4 catalyst arises from the structural compatibility between low-spin La atom and Ni cluster, which enables La to modify Ni dispersion and electronic structure more significantly than Ce or Pr. © 2023, The Authors. All rights reserved.

关键词： Temperature

来源：评论

学校读者我要写书评

暂无评论

Spatiotemporal Distribution and Ecological Risk of Azole Fungicides During the Urban Water Cycle in the Lower Reaches of the Yangtze River, China

SSRN

引用

SSRN 2023年

作者： Zhang, Yangyang Gu, Xinjie Li, Xiuwen Zhao, Qiuyun Hu, Xiaodong Huang, Rui Xu, Jixiong Yin, Zilong Zhou, Qing Shi, Peng Li, Aimin State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China Jiangsu Province Hydraulic Research Institute Nanjing210023 China

Azole fungicides (AFs) play a vital role in preventing and treating fungal diseases in agricultural crops. However, there have been limited studies focusing on the fate and ecological risk of AFs in the urban water cycle at a large watershed scale. To address this gap, we investigated the spatiotemporal distribution and ecological risk of twenty AFs in the lower reaches of the Yangtze River across four seasons. Our findings revealed that all AFs were detected in surface water except for triazophos (TAP) and mepanipyrim (MAP). Among the detected AFs, carbendazim (CBA), tebuconazole (TBA), tricyclazole (TCA), and propiconazole (PPA) emerged as the dominant compounds. Their highest concentrations were recorded in January (188.0 ng/L), and November (2197.0 ng/L), July (162.0 ng/L), and November (1802.0 ng/L), respectively. The comparison between effluents from wastewater treatment plants (WWTPs) and surface water pointed towards industrial WWTPs as a major source of AFs in the Yangtze River. Specifically, TBA and PPA were found to be the most recalcitrant AFs in industrial WWTPs, while DFA in municipal WWTPs, with an average removal rate of below 60%. The ecological risk assessment demonstrated that the average risk quotient (RQ) for total AFs in the fall was 6.45, higher than that in January (0.98), April (0.61), and July (0.40). This indicates that AFs in surface water during dry seasons posed higher environmental risks. Additionally, the exposure risk of AFs through drinking water to sensitive populations deserves more attention. This study provides benchmark data on the occurrence of AFs in the lower reaches of the Yangtze River, and offers suggestions for better reduction of AFs. © 2023, The Authors. All rights reserved.

关键词： Risk assessment

来源：评论

学校读者我要写书评

暂无评论

Simultaneous Elimination of Sulfamethoxazole, Antibiotic-Resistant Bacteria and Resistance Genes by Mgfe2O4/Mgo Modified Biochar Activated Peroxymonosulfate: Performance, Mechanism and Application Potential

SSRN

引用

SSRN 2024年

作者： Wang, Xuejiang Wang, Guanlu Sun, Zhenhua Liu, Yiyang Chen, Xi Yan, Changchun State Key Laboratory of Pollution Control and Resource Reuse Shanghai Institute of Pollution Control and Ecological Security College of Environmental Science and Engineering Tongji University Shanghai200092 China Laboratory of Solid Waste Environmental Risk Control Guangdong Provincial Academy of Environmental Science Guangzhou510045 China Shanghai Academy of Environmental Sciences Shanghai200233 China

The extensive utilization of antibiotics has resulted in an escalation of antibiotic resistance (AR), which represent a significant threat to human health. In this study, a MgFe2O4/MgO modified biochar (MMFBC) activated peroxymonosulfate oxidation system (MMFBC/PMS) was constructed to eliminate sulfamethoxazole (SMX), antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) simultaneously. Experimental results demonstrated that the oxidation system was capable of fully inactivating E. coli DH5α within 30 min, and the horizontal gene transfer (HGT) frequency of sulfonamides ARG (sul1) was decreased to the lowest level within just 2 min ([MMFBC] = 0.4 g/L, [PMS] = 1.0 mM, initial E. coli DH5α concentration: ~ 108 CFU/mL). Meanwhile, the MMFBC/PMS could achieve synchronous removal of SMX within 30 min ([SMX] = 20 mg/L). Singlet oxygen (1O2) was the primary reactive oxygen species for the disinfection process. From the perspective of time evolution, the mechanism underlying simultaneous elimination of ARB and ARGs were analyzed. It was found that proteins were preferentially damaged, and the leakage of cellular contents due to membrane impairment played an important role in the initial decrease of HGT frequency. Furtherly, the system was implemented for treatment of actual livestock wastewater to assess its application potential. The metagenomic analysis revealed that MMFBC/PMS treatment effectively achieved sterilization, and led to a significant reduction in the relative abundance of HGT-related functional genes and ARGs. Overall, this work provided a practical approach to control AR and new insights for improvement of disinfection efficiency. © 2024, The Authors. All rights reserved.

关键词： Escherichia coli

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：