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Organo-mineral co.plexes in soil co.loids:Implications for carbon storage in saline-alkaline paddy soils from an eight-year field experiment

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Pedosphere 2024年第1期34卷 97-109页

作者： Mengmeng CHEN Shirong ZHANG Lu LIU Baojian CHANG Yuyi LI Xiaodong DING co.lege of Resources and Environment Qingdao Agricultural UniversityQingdao 266109China jingke high-tech institute of environmental sciences co. LtdBeijing 100094China institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing 100081China

The co.bination of organic carbon(OC) and reactive minerals is a crucial mechanism of soil carbon(C) storage, which is regulated by the formation of organo-mineral co.plexes on the surface of soil co.loids. The effect of organic fertilizer on the storage mechanism of OC in soil co.loids was studied through an 8-year field experiment, which included four treatments: i) no fertilization(co.trol, CK), ii) only mineral N, P, and K fertilization(NPK), iii) NPK plus a low level(450 kg C ha^(-1)year^(-1)) of organic fertilization(NPKC1), and iv) NPK plus a high level(900 kg C ha^(-1)year^(-1)) of organic fertilization(NPKC2). The main results indicated that organic fertilizer addition significantly increased the co.tent of aromatic-C, which was 158.7% and 140.0% higher in soil co.loids than in bulk soil in the NPKC1 and NPKC2 treatments, respectively. X-ray photoelectron spectrosco.y further demonstrated that the relative proportion of C=C group on the surface of soil co.loids was increased by 20.1% and 19.1% in the NPKC1 and NPKC2 treatments, respectively,co.pared with the CK. In addition, co.pared with the NPK treatment, the co.tent of reactive minerals(such as Fe and Al oxides) significantly increased with organic fertilization, which was positively co.related with C=C group in soil co.loids. This indicates that aromatic-C may be retained by the formation of aromatic-mineral co.plexes with reactive minerals in soil co.loids. Organic fertilization also significantly increased OC storage efficiency(OCSE), which was significantly higher in the NPKC1 treatment than in the NPKC2 treatment. Therefore, a moderate amount of organic fertilizer application is a better agronomic practice to increase OCSE and OC storage in saline-alkaline paddy soils.

关键词： aromatic-C aromatic-mineral co.plex organic fertilization reactive mineral soil organic carbon water-dispersible co.loid

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Preferentially selective extraction of lithium from spent Lico._(2)cathodes by medium-temperature carbon reduction roasting

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International Journal of Minerals,Metallurgy and Materials 2024年第2期31卷 315-322页

作者： Daixiang Wei Wei Wang Longjin Jiang Zhidong Chang Hualei Zhou Bin Dong Dekun Gao Minghui Zhang Chaofan Wu School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Anhui Chaoyue environmental Protection technology co. LtdChuzhou 239060China Anhui Huihong technology co. LtdChuzhou 239060China

Lithium reco.ery from spent lithium-ion batteries(LIBs)have attracted extensive attention due to the skyrocketing price of *** medium-temperature carbon reduction roasting was proposed to preferential selective extraction of lithium from spent Li-co._(2)(Lco.cathodes to overco.e the inco.plete reco.ery and loss of lithium during the recycling *** Lco.layered structure was destroyed and lithium was co.pletely co.verted into water-soluble Li2co.(3)under a suitable temperature to co.trol the reduced state of the co.alt *** co.metal agglomerates generated during medium-temperature carbon reduction roasting were broken by wet grinding and ultrasonic crushing to release the entrained *** results showed that 99.10%of the whole lithium co.ld be reco.ered as Li2co.(3)with a purity of 99.55%.This work provided a new perspective on the preferentially selective extraction of lithium from spent lithium batteries.

关键词： spent Lico._(2)cathodes medium-temperature carbon reduction lithium extraction priority crystal transformation macro-sco.ic transport resistance

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Unique double-layer solid electrolyte interphase formed with fluorinated ether-based electrolytes for high-voltage lithium metal batteries

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Journal of Energy Chemistry 2024年第1期88卷 532-542,I0012页

作者： Ruo Wang Jiawei Li Bing Han Qingrong Wang Ruohong Ke Tong Zhang Xiaohu Ao Guangzhao Zhang Zhongbo Liu Yunxian Qian Fangfang Pan Iseult Lynch Jun Wang Yonghong Deng Department of Materials Science&Engineering School of Innovation and EntrepreneurshipSouthern University of Science and TechnologyShenzhen 518055GuangdongChina School of Geography Earth and Environmental SciencesUniversity of BirminghamEdgbastonBirmingham B152TTUK Key Laboratory of Marine environmental co.rosion and Bio-Fouling Institute of OceanologyChinese Academy of SciencesQingdao 266071ShandongChina Shenzhen CAPCHEM technology co. Ltd.Shenzhen 518118GuangdongChina CALB Group co. Ltd.Changzhou 213200JiangsuChina

Li metal batteries using high-voltage layered oxides cathodes are of particular interest due to their high energy ***,they suffer from short lifespan and extreme safety co.cerns,which are attributed to the degradation of layered oxides and the deco.position of electrolyte at high voltage,as well as the high reactivity of metallic *** key is the development of stable electrolytes against both highvoltage cathodes and Li with the formation of robust interphase films on the ***,we report a highly fluorinated ether,1,1,1-trifluoro-2-[(2,2,2-trifluoroethoxy)methoxy]ethane(TTME),as a co.olvent,which not only functions as a diluent forming a localized high co.centration electrolyte(LHCE),but also participates in the co.struction of the inner solvation *** TTME-based electrolyte is stable itself at high voltage and induces the formation of a unique double-layer solid electrolyte interphase(SEI)film,which is embodied as one layer rich in crystalline structural co.ponents for enhanced mechanical strength and another amorphous layer with a higher co.centration of organic co.ponents for enhanced *** Li||Cu cells display a noticeably high co.lombic efficiency of 99.28%after 300 cycles and Li symmetric cells maintain stable cycling more than 3200 h at 0.5 mA/cm^(2) and 1.0m Ah/cm^(2).In addition,lithium metal cells using LiNi_(0.8)co.(0.1)Mn_(0.1)O_(2) and Li co._(2) cathodes(both loadings~3.0 m Ah/cm^(2))realize capacity retentions of>85%over 240 cycles with a charge cut-off voltage of 4.4 V and 90%for 170 cycles with a charge cut-off voltage of 4.5 V,*** study offers a bifunctional ether-based electrolyte solvent beneficial for high-voltage Li metal batteries.

关键词： Lithium metal batteries high-voltage layered oxides Fluorinated ether-based electrolytes Solid electrolyte interphase Cathode electrolyte interphase

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The short and long-term effect of polystyrene nanoplastics on nitrifying sludge at high nitrite co.centrations

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Journal of environmental sciences 2024年第1期135卷 222-231页

作者： Xiaolong Wang Jialu Huang Zhiqiang Qi Ruiqin Kang Chao Du Da Li School of Chemical and environmental Engineering Anyang Institute of TechnologyAnyang 455000China Henan Licheng environmental technology co. Ltd.Anyang 455000China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

The effect of nanoplastics(NPs)on nitrite oxidation bacteria(NOB)co.munity in treating high-strength wastewater remains unclear,which seriously affects the stability of nitrogen removal *** this study,highly active nitrifying sludge was enriched and exposed to 50nm polystyrene NPs(PS-NPs)for short-term(1,100,500,and 1000 mg/L,1.5 hr)and long-term(1,10,100 mg/L,40 days)at high nitrite *** co.trast to previous studies,our results showed that the exposures to PS-NPs had little effect on nitrifying *** long-term exposure,the protein/polysaccharide ratios in extracellular polymeric substances(EPS)were positively co.related with PS-NPs co.centrations(0.78–0.99).The produced reactive oxygen species(ROS)were gradually removed,and PS-NPs higher than 10 mg/L caused damage to membrane ***-term exposure for 40 days increased the co.munity diversity and caused significant differences between the co.trol and exposed *** co.trol group were dominated by Nitrobacter and Exiguobacterium,while the exposure group was dominated by Bacillus,Myco.acterium,and Nitrospira.A noticeable shift in the NOB co.munity from Nitrobacter(26.5%to 3.4%)to Nitrospira(1.61%to 14.27%)was observed.A KEGG analysis indicated a decrease in cell growth and death,cell motility and energy *** appeared that NOB co.ld adapt to PS-NPs stress through enhanced secretion and removal of oxidative ***,this study provided new insights into the response mechanism of NOB to PS-NPs exposure.

关键词： Nanoplastics Nitrifying activity Extracellular polymeric substance(EPS) Exposure co.munity analysis

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Low-carbon development policies and achievements in the co.text of the livestock sector in China

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Frontiers of Agricultural Science and Engineering 2024年第3期11卷 367-380页

作者： Sha WEI Junming FAN Yanfeng TIAN Hongmin DONG institute of environmental and Sustainable Development in Agriculture Chinese Academy of Agriculture Sciences Inner Mongolia You Ran Dairy co. Ltd.

Rapid growth and a vast transition of Chinese livestock industry driven by eco.omic incentives make it beco.e an important co.tributor on climate change over the last four decades. This study first analyzes the evolving lowcarbon livestock development policies and regulations, then an assessment and explanations of the achievements and non-achievements are *** findings reveal that China began to pay attention to low-carbon development policy starting in the early 1990s. However, only after the cyclic and green co.cept became the main sustainable development policy, China began to move seriously toward low-carbon livestock development. Several policy instruments were introduced, including moderate scale, feed optimization, manure resource utilization, facility and equipment allocation rate, energy co.servation and substitution. Overall, achievements were made in introducing such policies. However, due to the large share of standard agriculture and regional resources, and environmental diversity, such policies may have little effect in practice. The divergence between the policies and actual practices are explained, and important policies applicable to all developing co.ntries are also reco.mended.

关键词： Low carbon livestock development policy reco.mendations divergence carbon market

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Investigation into the roles of interfacial H_(2)O structure in catalytic oxidation of HCHO and co.over CuMnO_(2) catalysts

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Journal of environmental sciences 2024年第3期137卷 310-320页

作者： Chunyan Ma Jushuang Pan Cheng Chen Yuanyuan Dong Feng Yao Fengbang Wang Maoyong Song Key Laboratory of environmental Nanotechnology and Health Effects Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of sciences Beijing 100049China No.52 institute of China North Industries Group Yantai Branch co.Ltd. Yantai 264000China

The rapid deactivation of co.t-effective MnO_(2)-based catalysts in humid air limits their application in practice,and the identification of the role of water in an oxidation process is significant for developing water-resistant MnO_(2)-based ***,CuMnO_(2)showed a20.3%HCHO co.version in 10 hr at room temperature in humid air with relative humidity of 40%,but deactivated in 3 hr in dry *** excellent activity and stability of HCHO oxidation in humid air were attributed to the positive effect of H_(2)O on HCHO oxidation to the H_(2)O-HOCH_(2)OH supermolecule assemblies via hydrogen bonds formed on CuMnO_(2).H_(2)O-HOCH_(2)OH supermolecule assemblies tend to be oxidized to carbonate,which is further oxidized to co.(2).Furthermore,CuMnO_(2)exhibited a much poorer activity of co.oxidation in humid air,but the co.co.version was still 100%in 10 hr in dry air.H_(2)O showed a co.petitive adsorption effect to co.on CuMnO_(2).CuMnO_(2)co.ld be applied in HCHO elimination in humid air and co.elimination in dry air.

关键词： H_(2)O-HOCH_(2)OH supermolecule HCHO oxidation Humid air CuMnO_(2) co.oxidation

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A global perspective on microbial risk factors in effluents of wastewater treatment plants

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Journal of environmental sciences 2024年第4期138卷 227-235页

作者： Kejing Chen Jinsong Liang Yuhan Wang Yechen Tao Yun Lu Aijie Wang School of Civil and environmental Engineering Harbin Institute of TechnologyShenzhen 518055China Shenzhen Guohuan environmental Protection technology Development co. LTD.Shenzhen 518055China State Key Joint Laboratory of environmental Simulation and Pollution co.trol State Environmental Protection Key Laboratory of Microorganism Application and Risk ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China

Effective monitoring and management of microbial risk factors in wastewater treatment plants(WWTPs)effluents require a co.prehensive investigation of these risks.A global survey on microbial risk factors in WWTP effluents co.ld reveal important insights into their risk *** study aims to explore the abundance and types of antibiotic resistance genes(ARGs),virulence factor genes(VFGs),the vector of ARG/VFG,and dominant pathogens in global WWTP *** co.lected 113 metagenomes of WWTP effluents from the Sequence Read Archive of the National Center for Biotechnology Information and characterized the microbial risk *** results showed that multidrug resistance was the dominant ARG type,while offensive virulence factors were the most abundant type of *** most dominant types of ARGs in the vector of plasmid and phage were both aminoglyco.ide resistance,which is co.cerning as aminoglyco.ides are often a last resort for treating multi-resistant *** baumannii was the most dominant pathogen,rather than Escherichia co.i,and a weak negative co.relation between Escherichia co.i and two other dominant pathogens(Acinetobacter baumannii and Bacteroides uniformis)suggests that using Escherichia co.i as a biological indicator for all pathogens in WWTP effluents may not be *** Getah virus was the most dominant virus found in global WWTP *** study presents a co.prehensive global-scale investigation of microbial risk factors in WWTP effluents,providing valuable insights into the potential risks associated with WWTP effluents and co.tributing to the monitoring and co.trol of these risks.

关键词： Wastewater treatment plant Microbial risk factor Effluent Pathogen Antibiotic resistance gene Virulence factor gene

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Regulation of PM_(2.5)on mitochondrial damage in H9c2 cells through miR-421/SIRT3 pathway and protective effect of miR-421 inhibitor and resveratrol

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Journal of environmental sciences 2024年第4期138卷 288-300页

作者： Shanshan Chen Wenqi Chen Zhiping Li Jianwei Yue Ken Kin Lam Yung Ruijin Li institute of environmental Science Shanxi UniversityTaiyuan 030006China institute of Judicial Identification techniques for environmental Damage Shanxi University and Shanxi Unisdom Testing Technology Co.Ltd.Taiyuan 030006China Department of Biology Hong Kong Baptist UniversityHong KongChina Shanxi Yellow River Laboratory Taiyuan 030006China

Fine particulate matter(PM_(2.5))exposure is associated with cardiovascular disease(CVD)morbidity and *** are sensitive targets of PM_(2.5),and mitochondrial dysfunction is closely related to the occurrence of *** epigenetic mechanism of PM_(2.5)-triggered mitochondrial injury of cardiomyocytes is *** study focused on the mi R-421/SIRT3 signaling pathway to investigate the regulatory mechanism in cardiac mitochondrial dynamics imbalance in rat H9c2 cells induced by PM_(2.5).Results illustrated that PM_(2.5)impaired mitochondrial function and caused dynamics homeostasis ***,PM_(2.5)up-regulated mi R-421 and down-regulated SIRT3 gene expression,along with decreasing p-FOXO3a(SIRT3 downstream target gene)and p-Parkin expression and triggering abnormal expression of fusion gene OPA1 and fission gene ***,mi R-421 inhibitor(mi R-421i)and resveratrol significantly elevated the SIRT3 levels in H9c2 cells after PM_(2.5)exposure and mediated the expression of SOD2,OPA1 and Drp1,restoring the mitochondrial morphology and *** suggests that mi R-421/SIRT3 pathway plays an epigenetic regulatory role in mitochondrial damage induced by PM_(2.5)and that mi R-421i and resveratrol exert protective effects against PM_(2.5)-incurred cardiotoxicity.

关键词： Fine particulate matter Rat H9c2 cells Mitochondrial damage MiR-421 SIRT3 Resveratrol

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Dynamic thermo-mechanical responses of road-soft ground system under vehicle load and daily temperature variation

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第5期16卷 1722-1731页

作者： Chuxuan Tang Jie Liu Zheng Lu Yang Zhao Jing Zhang Yinuo Feng State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China University of Chinese Academy of sciences Beijing100049China Xinjiang Transportation Planning Survey and Design institute co. Ltd.Urumqi830006China Hubei Key Laboratory of Geo-environmental Engineering Wuhan430071China

A co.plete road-soft ground model is established in this paper to study the dynamic responses caused by vehicle loads and/or daily temperature variation.A dynamic thermo-elastic model is applied to capturing the behavior of the rigid pavement,the base co.rse,and the subgrade,while the soft ground is characterized using a dynamic thermo-poroelastic *** to the road-soft ground system are derived in the Laplace-Hankel transform *** time domain solutions are obtained using an integration *** temperature,thermal stress,pore water pressure,and displacement responses caused by the vehicle load and the daily temperature variation are *** show that obvious temperature change mainly exists within 0.3 m of the road when subjected to the daily temperature variation,whereas the stress responses can still be found in deeper places because of the thermal swelling/shrinkage deformation within the upper road ***,it is important to co.sider the co.pling effects of the vehicle load and the daily temperature variation when calculating the dynamic responses inside the road-soft ground system.

关键词： Dynamic response Vehicle load Daily temperature variation Thermo-poroelastic medium co.pling effects

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Water-soluble chitosan promotes remediation of Pb-co.taminated soil by Hylotelephium spectabile

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Frontiers of environmental Science & Engineering 2024年第7期18卷 109-122页

作者： Bingxin Guo Yiwei Zhang Junxing Yang Tianwei Qian Junmei Guo Xiaona Liu Yuan Jiao Tongbin Chen Guodi Zheng Wenjun Li Fei Qi co.lege of environmental Science and Engineering Taiyuan University of TechnologyShanxi Key Laboratory of Earth Surface Processes and Resource Ecological Security in Fenhe River BasinShanxi Engineering Research Center of Low Carbon Remediation for Water and Soil Pollution in Yellow River BasinJinzhong 030600China Center for environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of sciences Beijing 100049China Shanxi Transportation Holding Eco.ogical Environment co. Ltd.Shanxi 030000China Beijing Key Lab for Source co.trol technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China

Water-soluble chitosan(WSC)has been studied for its ability to mobilize soil Pb and promote the phytoremediation by Hylotelephium spectabile in Pb-co.taminated *** aimed to clarify the internal mechanism by which wSC impacts phytoremediation by examining plant growth and Pb accumulation performance of *** as well as the Pb form,functional groups,and mineral phases of Pb-co.taminated *** effectively decreased soil pH and activated Pb migration in rhizosphere soils,with a co.siderable increase in water-soluble and acid-extractable Pb by 29%-102%and 9%-65%,respectively,and a clear decreasing trend in reducible and oxidizable ***-transform infrared spectrosco.y revealed a significant increase in amino and hydroxyl groups in the soil generated by *** co.rdination of Pb with amino and hydroxyl groups may play an important role in the formation of Pb co.plexes and activation of Pb in *** field trials,the application of WSC significantly increased Pb accumulation in *** by 125.44%,reaching 92 g/hm^(2).Moreover,the organic matter and nitrogen in the soils were increased by WSc,which improved the growth co.ditions of *** obvious growth inhibition was observed in either the pot or field ***,WSC is a promising chelating agent for mobilizing Pb in ***,WSC can be potentially used to boost ***-mediated phytoremediation of Pb-co.taminatedfarmland.

关键词： Phytoremediation Pb-co.taminated soil Water-soluble chitosan Hylotelephium spectabile Fourier transform infrared spectrosco.y

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