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Iron-based materials functionalized with carbon and phosphorus recovered from sludge enhanced the formation of stable minerals to passivate lead and chromium in wastewater and soil

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Chemosphere 2024年 359卷 142340页

作者： Wang, Liyan Jia, Bojie Teng, Zedong Cao, Hao Miao, Yanli Guo, Huiyuan Li, Tinggang School of Chemical and Environmental Engineering China University of Mining and Technology Beijing100083 China CAS Key Laboratory of Green Process and Engineering Beijing Engineering Research Centre of Process Pollution Control National Engineering Research Center of Green Recycling for Strategic Metal Resources Innovation Academy for Green Manufacture Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Key Laboratory of Rare Earths Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341119 China State Key Laboratory of Biochemical Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China

The bioaccumulation and toxicity of heavy metals are serious threats to human activities and ecological health. The exploitation of environmentally friendly passivated materials is major importance for the remediation of heavy metal contaminated soil. This research developed a new type of environmental functional material with a core-shell structure, which is an iron-based material functionalized with phosphorus and carbon from sludge for heavy metal pollution remediation. The results indicated that the C/P@Fe exhibits excellent heavy metal removal ability, and the maximum removal rates of the two heavy metals in simulated wastewater could reach 100% under optimum reaction conditions. It also effectively converts the labile Cr/Pb into the stable fraction after 28 days of incubation, which increased the maximum residual fraction percentage of Cr and Pb by 32.43% and 160% in soil. Further analysis found that the carbon layer wrapped around the iron base could improve the electron transport efficiency of reducing iron, phosphorus and ferrum could react with heavy metal ions to form stable minerals, such as FeCr2O4, FeO·Cr2O3, Pb5(PO4)3OH, PbCO3, 2PbCO3·Pb(OH)2 and PbS, after reacting with C/P@Fe. The study demonstrated that the Iron-based materials functionalized with carbon and phosphorus from sludge provided a more efficient way to remove heavy metals. © 2024 Elsevier Ltd

关键词： Lead compounds

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Enhanced Thermal Stability and Moisture Toleration for Toluene Catalytic Decomposition Over Mncoox Supported Hierarchical Porous Biochars with Ceo2 Encapsulation

SSRN

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SSRN 2024年

作者： Jiang, Yun Gao, Lei Dai, Jianyong Xie, Dong Li, Caiting Yi, Lei Zhang, Jiahao Xiong, Huiyu Wang, Jiajie Tan, Yuheng Xu, Qing School of Resources Environment and Safety Engineering University of South China Hengyang421001 China National & Local Joint Engineering Research Center for Airborne Pollutants Control and Radioactivity Protection in Buildings Hengyang421001 China Key Laboratory of Prefabricated Building Energy Saving Technology of Hunan Province Hengyang421001 China College of Environmental Science and Engineering Hunan University Changsha410082 China University of South China China

The thermal stability of carbon-based catalysts remains a tremendous obstacle that deters their practical applications under high temperature range. Herein, a battery of MnCoOx supported hierarchical porous biochars with CeO2 encapsulation (MnCo/CeO2@BAC) were facilely fabricated for toluene catalytic oxidation. The strategy of CeO2 encapsulation can prevent biochars from high temperature damage and emerging hydrogen bonding with interfacial H2O, thereby strengthening the thermal stability and H2O resistance of such catalysts. The intrinsic relationship between their catalytic activities and physicochemical features was systematically comprehended via SEM, N2 adsorption-desorption, TEM, H2-TPR, XPS, XRD, O2-TPD and in situ DRIFT. 10%Mn0.5Co0.5/CeO2@BAC manifested joyful activity, outstanding mineralization rate, satisfactory thermal stability, preeminent SO2 and H2O toleration at a broad temperature interval. The impacts of O2, SO2 and H2O concentrations on toluene purification over 10%Mn0.5Co0.5/CeO2@BAC were delved, thereinto, SO2 and H2O exhibited prohibitive effects on toluene abatement, whereas O2 demonstrated stimulative influence on toluene elimination. In contrast to 10%Mn/CeO2@BAC and 10%Co/CeO2@BAC, 10%Mn0.5Co0.5/CeO2@BAC rendered superior catalytic performance benefitting from the cooperative effect of MnOx and CoOx, which contributed to improved redox property, more oxygen vacancies and lattice defects, higher proportions of Mn4+ and Co3+, larger Oads/Olatt ratio and better metal oxide dispersion. The possible reaction avenues and intermediates of toluene catalytic decomposition over 10%Mn0.5Co0.5/CeO2@BAC were also explored, among which chemically adsorbed oxygen dominated toluene adsorption and partial oxidation, while lattice oxygen was largely responsible for its deep oxidation. Ultimately, 10%Mn0.5Co0.5/CeO2@BAC showcased remarkable potential for industrial applications. © 2024, The Authors. All rights reserved.

关键词： Cerium oxide

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Complexation between Butyl Xanthate and Cu Enhanced Peroxydisulfate Activation and Cation Redox Cycle by Fe-Cu-Ldh/Biochar

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SSRN 2023年

作者： Li, Baoxin Hu, Xinjiang Gu, Yanling Yang, Hailan Ye, Shujing Yang, Zhongzhu Liu, Ni Tan, Xiaofei College of Environmental Science and Engineering Key Laboratory of Environmental Biology and Pollution Control Ministry of Education Hunan University Changsha410082 China Shenzhen Research Institute of Hunan University Shenzhen518055 China College of Environmental Science and Engineering Central South University of Forestry and Technology Changsha410004 China College of Materials Science and Engineering Changsha University of Science and Technology Changsha410114 China School of Resources Environment and Materials Guangxi University Nanning530004 China School of Public Administration and Human Geography Hunan University of Technology and Business Changsha410205 China

Butyl xanthate (BX) is one of the most widely used collector in sulfide flotation. It is harmful to human health but its degradability has not been addressed in depth. In this study, Fe-Cu-Layered double hydroxides/Biochar composites (Fe-Cu-LDH/BC) were prepared and firstly used to activate peroxydisulfate (PDS) for degradation of butyl xanthate. More than 90% degradation of BX could be achieved within 10 min. The high degradation efficiency was owing to the complex formation between catalyst and contaminant molecule by a coordination bond of the Cu in Fe-Cu-LDH/BC and the S in BX. Through DFT calculations, it could be found that this complexation enhanced the adsorption efficiency of LDH/BC on PDS. And the reactivity of the Cu site. EPR was applied to analyze the reactive substances in the reaction, and various reactive oxygen species such as O2•−, •OH and SO4•− were detected in the process. In addition, LC-MS was used to analyze and speculate the intermediates and degradation pathways of BX. In conclusion, this material can rapidly degrade BX in water under different conditions and has great potential in treating mine wastewater. Meanwhile, this study provides a new support for the preparation of new catalysts for the efficient treatment of pollutants. © 2023, The Authors. All rights reserved.

关键词： Degradation

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Effects of arbuscular mycorrhizal fungi on the repair capacity of perennial ryegrass (Lolium perenne L.) in the uranium-containing soils

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IOP Conference Series: Earth and Environmental Science 2020年第1期508卷

作者： Lishan Rong Lin Xia Bin Yuan Xiaobo Lai Juntong Hu Yingjiu Liu Hunan Provincial Key Laboratory of Pollution Control and Resources Technology University of South China Hengyang 421001 P. R. China

This research inclines to study the ramification on arbuscular mycorrhizal fungi (AMF), including Glomusclaroideum (G. claroideum) and G. mosseae strains as well as the repair process of perennial ryegrass (Lolium perenne L.) in the uranium-containing soils. Three times at 120°C for an hour was required to disinfect the soil mixture. Spraying the uranium (U3O8) into the soil mixture and mixing until the ingredients were thoroughly blended, serving the purpose of obtaining the uranium-containing soil mixture with 5 mg/kg U3O8. A week later, AMF was inoculated into every flowerpot and chamber facility. Seeds of perennial ryegrass were cultivated with thirty seeds in each flowerpot or each indoor equipment in a fortnight's time. Perennial ryegrass plants tended to be harvested after sowing and meeting the conditions of 60 days. Three substances are detected by three different detection means(Photosynthetic pigments, soluble proteins, and malondialdehyde correspond to ethanol extraction method, Coomassie brilliant blue method, and thiobarbituric acid method, respectively). Additionally, testing included activities of alkaline phosphatase and succinate dehydrogenase as well. Moreover, Hitachi H-7650 transmission electron microscope performed the function of observing cellular and subcellular distributions of uranium in plant epidermal cells. Photosynthetic pigment standards of perennial ryegrass are subject to AMF, which not only has a tendency to enhance the soluble protein levels in perennial ryegrass, but also gains the possibility of holding up the uranium-induced improvement of malondialdehyde levels in perennial ryegrass. G. mosseaes is properly more efficacious than G. claroideum in the attenuation of uranium damages in cell structures of perennial ryegrass. Our results demonstrate that AMF is capable of developing the capacity of perennial ryegrass on repairing the uranium-related soil contamination.

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Repair capacity of perennial ryegrass (Lolium perenne L.) based on arbuscular mycorrhizal fungi on the in uranium contaminated soil

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IOP Conference Series: Earth and Environmental Science 2019年第3期330卷

作者： Zhang Shi-qi Lv Yi-jin Zhang Yu Peng Xiaoyong Liu Yingjiu Rong Lishan Hunan Provincial Key Laboratory of Pollution Control and Resources Technology University of South China Hengyang 421001 P. R. China

This study is to research effects of arbuscular mycorrhizal fungi (AMF) on the repair capacity of perennial ryegrass (Lolium perenne L.) in the uranium-containing soils. Perennial ryegrass plants were harvested 60 days after sowing in soils. Photosynthetic pigments, soluble proteins, and malondialdehyde were determined by ethanol extraction method, Coomassie brilliant blue method, and thiobarbituric acid method, respectively. Activities of alkaline phosphatase and succinate dehydrogenase were also determined. And, cellular and subcellular distributions of uranium in plant epidermal cells were observed with Hitachi H-7650 transmission electron microscope. AMF influents photosynthetic pigment levels of perennial ryegrass. AMF increases the soluble protein levels in perennial ryegrass and represses the uranium-induced increase of malondialdehyde levels in perennial ryegrass. It suggested that AMF can effectively increase the ability of perennial ryegrass on repairing the uranium-related soil contamination.

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Emerging contaminants:A One Health perspective

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The Innovation 2024年第4期5卷 140-170,139页

作者： Fang Wang Leilei Xiang Kelvin Sze-Yin Leung Martin Elsner Ying Zhang Yuming Guo Bo Pan Hongwen Sun Taicheng An Guangguo Ying Bryan WBrooks Deyi Hou Damian EHelbling Jianqiang Sun Hao Qiu Timothy MVogel Wei Zhang Yanzheng Gao Myrna JSimpson Yi Luo Scott XChang Guanyong Su Bryan MWong Tzung-May Fu Dong Zhu Karl JJobst Chengjun Ge Frederic Coulon Jean Damascene Harindintwali Xiankui Zeng Haijun Wang Yuhao Fu Zhong Wei Rainer Lohmann Changer Chen Yang Song Concepcion Sanchez-Cid Yu Wang Ali El-Naggar Yiming Yao Yanran Huang Japhet Cheuk-Fung Law Chenggang Gu Huizhong Shen Yanpeng Gao Chao Qin Hao Li Tong Zhang Natàlia Corcoll Min Liu Daniel SAlessi Hui Li Kristian KBrandt Yolanda Pico Cheng Gu Jianhua Guo Jianqiang Su Philippe Corvini Mao Ye Teresa Rocha-Santos Huan He Yi Yang Meiping Tong Weina Zhang Fidèle Suanon Ferdi Brahushi Zhenyu Wang Syed AHashsham Marko Virta Qingbin Yuan Gaofei Jiang Louis A.Tremblay Qingwei Bu Jichun Wu Willie Peijnenburg Edward Topp Xinde Cao Xin Jiang Minghui Zheng Taolin Zhang Yongming Luo Lizhong Zhu Xiangdong Li DamiàBarceló Jianmin Chen Baoshan Xing Wulf Amelung Zongwei Cai Ravi Naidu Qirong Shen Janusz Pawliszyn Yong-guan Zhu Andreas Schaeffer Matthias C.Rillig Fengchang Wu Gang Yu James M.Tiedje State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Department of Chemistry Hong Kong Baptist UniversityHong KongChina HKBU Institute of Research and Continuing Education Shenzhen Virtual University ParkShenzhenChina Technical University of Munich TUM School of Natural SciencesInstitute of Hydrochemistry85748 GarchingGermany School of Resources&Environment Northeast Agricultural UniversityHarbin 150030China Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourneVICAustralia Faculty of Environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory of Environmental Theoretical Chemistry South China Normal UniversityGuangzhouGuangdong 510006China Department of Environmental Science Baylor UniversityWacoTXUSA Center for Reservoir and Aquatic Systems Research(CRASR) Baylor UniversityWacoTXUSA School of Environment Tsinghua UniversityBeijing 100084China School of Civil and Environmental Engineering Cornell UniversityIthacaNY 14853USA Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Laboratoire d’Ecologie Microbienne Universite Claude Bernard Lyon 1UMR CNRS 5557UMR INRAE 1418VetAgro Sup69622 VilleurbanneFrance Department of Pla

Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental Science-Policy Panel on Chemicals,Waste,and pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One Health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

关键词： pollution planet contaminants

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High-sensitivity infrared attenuated total reflectance sensors for in situ multicomponent detection of volatile organic compounds in water

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Nature Protocols 2016年第2期11卷 377-386页

作者： Lu, Rui Li, Wen-Wei Mizaikoff, Boris Katzir, Abraham Raichlin, Yosef Sheng, Guo-Ping Yu, Han-Qing Chinese Academy of Sciences (CAS) Key Laboratory of Urban Pollutant Conversion Department of Chemistry University of Science and Technology of China Hefei China Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing China Institute of Analytical and Bioanalytical Chemistry University of Ulm Ulm Germany School of Physics Tel Aviv University Tel Aviv Israel Department of Applied Physics Ariel University Center of Samaria Ariel Israel

In situ detection of volatile organic compounds (VOCs) in aqueous environments is imperative for ensuring the quality and safety of water supplies, yet it remains a challenging analytical task. We present a high-sensitivity method for in situ analysis of multicomponent VOCs at low concentrations based on the use of infrared attenuated total reflection (IR-ATR) spectroscopy. This protocol uses a unique ATR waveguide, which comprises a planar silver halide (AgCl_xBr_1-x) fiber with cylindrical extensions at both ends to increase the number of internal reflections, and a polymer coating that traps VOCs and excludes water molecules. Depending on the type of VOC and measurement scenario, IR spectra with specific frequency windows, scan times and spectral resolutions are obtained, from which concentration information is derived. This protocol allows simultaneous detection of multiple VOCs at concentrations around 10 p.p.b., and it enables accurate quantification via a single measurement within 5 min without the need for sample collection or sample pretreatment. This IR-ATR sensor technology will be useful for other applications;we have included a procedure for the analysis of protein conformation changes in Supplementary Methods as an example. © 2016 Nature America, Inc. All rights reserved.

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

SSRN

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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

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Effects of long-term exposure to zinc on performances of anaerobic digesters for swine wastewater treatment under various organic loading rates

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Chemosphere 2024年 363卷 142843页

作者： Huang, Zhiwei Niu, Qiuya He, Shanying Li, Xiang Qian, Chongxin He, Yuxin Yang, Chunping Academy of Environmental and Resource Sciences School of Environmental Science and Engineering Guangdong University of Petrochemical Technology Guangdong Maoming525000 China Ministry of Education Hunan Changsha410082 China College of Environmental Science and Engineering Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling Zhejiang Gongshang University Zhejiang Hangzhou310012 China School of Environmental Science and Engineering Hainan University Hainan Haikou570228 China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Jiangxi Nanchang330063 China

The long-term performance of anaerobic digestion (AD) often decreases substantially when treating swine wastewater contaminated with heavy metals. However, the toxicological characteristics and mechanisms of continuous exposure to heavy metals under different organic loading rates (OLR) are still poorly understood. In these semi-continuous AD experiments, it was found that zinc concentrations of 40 mg/L only deteriorated the reductive environments of AD. In comparison, a concentration of 2.0 mg/L probably facilitated the reproduction of microorganisms in the operating digesters with a constant OLR of 0.51 g COD/(L·d). Nevertheless, when the OLR was increased to 2.30 g COD/(L·d), 2.0 mg/L zinc inhibited various life activities of microorganisms at the molecular level within only 10 days. Hence, even though 2.0 mg/L zinc could promote AD performances from a macroscopic perspective, it had potential inhibitory effects on AD. Therefore, this study deepens the understanding of the inhibitions caused by heavy metals on AD and the metabolic laws of anaerobic microorganisms in swine wastewater treatment. These results could be referred to for enhancing AD in the presence of zinc in practical swine wastewater treatment. © 2024 Elsevier Ltd

关键词： Anaerobic digestion

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

SSRN

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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

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