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Research progress and mechanism of nanomaterials-mediated in-situ remediation of cadmium-contaminated soil:A critical review

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Journal of Environmental Sciences 2021年第6期33卷 351-364页

作者： Yuenan Zhang Yujie Zhang Ozioma Udochukwu Akakuru Xiawei Xu Aiguo Wu Cixi Institute of Biomedical Engineering Chinese Academy of Science(CAS)Key Laboratory of Magnetic Materials and Devices&Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCAS NingboNingbo 315201China University of Chinese Academy of Sciences Beijing 100049China

Cadmium contamination of soil is a global issue and in-situ remediation technology as a promising mitigation strategy has attracted more and more *** nanomaterials have been applied for the in-situ remediation of cadmium-contaminated soil due to their excellent properties of the nano-scale size *** this work,recent research progress of various nanomaterials,including carbon nanomaterials,metal-based nanomaterials and nano mineral materials,in the removal of cadmium and in-situ remediation of cadmiumcontaminated soil were systematically *** emphases were particularly laid on both laboratory and field restoration ***,the factors which can affect the stability of cadmium,main interaction mechanisms between nanomaterials and cadmium in the soil,and potential future research direction were also ***,it is believed that this work will ultimately contribute to the myriad of environmental cleanup advances,and further improve human health and sustainable development.

关键词： Cadmium pollution Contaminated soil in-situ remediation Mechanism Nanomaterials

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remediation of soil and groundwater contaminated with organic chemicals using stabilized nanoparticles: Lessons from the past two decades

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Frontiers of Environmental Science & Engineering 2020年第5期14卷 83-102页

作者： Zhengqing Cai Xiao Zhao Jun Duan Dongye Zhao Zhi Dang Zhang Lin National Engineering Lab for High-concentration Refractory Organic Wastewater East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China College of Water Resources&Civil Engineering China Agricultural UniversityBeijing 100083China Environmental Engineering Program Department of Civil EngineeringAuburn UniversityAuburnAL 36849USA School of Environment and Energy South China University of TechnologyGuangzhou 510006China

Due to improved soil deliverability and high reactivity,stabilized nanoparticles have been studied for nearly two decades for in situ remediation of soil and groundwater contaminated with organic *** large amounts of bench-and field-scale experimental data have demonstrated the potential of the innovative technology,extensive research results have also unveiled various merits and constraints associated different soil characteristics,types of nanoparticles and particle stabilization ***,this work aims to critically overview the fundamental principles on particle stabilization,and the evolution and some recent developments of stabilized nanoparticles for degradation of organic contaminants in soil and *** specific objectives are to:1)overview fundamental mechanisms in nanoparticle stabilization;2)summarize key applications of stabilized nanoparticles for in situ remediation of soil and groundwater contaminated by legacy and emerging organic chemicals;3)update the latest knowledge on the transport and fate of stabilized nanoparticles;4)examine the merits and constraints of stabilized nanoparticles in environmental remediation applications;and 5)identify the knowledge gaps and furore research needs pertaining to stabilized nanoparticles for remediation of contaminated soil and *** instructions of this invited special issue,this review is focused on contributions from our group(one of the pioneers in the subject field),which,however,is supplemented by important relevant works by *** knowledge gained is expected to further advance the science and technology in the environmental applications of stabilized nanoparticles.

关键词： Stabilized nanoparticle in-situ remediation Organic contaminant Soil remediation Groundwater Fate and transport

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Microbial remediation of a pentachloronitrobenzene-contaminated soil under Panax notoginseng: A field experiment

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Pedosphere 2020年第4期30卷 563-569页

作者： Ning ZHANG Dong GUO Ye ZHU Xiaomi WANG Lingjia ZHU Fang LIU Ying TENG Peter CHRISTIE Zhengao LI Yongming LUO College of Resource and Environmental Engineering Guizhou UniversityGuiyang 550025(China) Key Laboratory of Soil Environment and Pollution remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) Infinitus(China)Co. LTDJiangmen 529156(China) Institute of Coastal Zone Research Chinese Academy of SciencesYantai 264003(China)

Pentachloronitrobenzene(PCNB)is an organochlorine fungicide that is mainly used in the prevention and control of diseases in crop *** removal is used as a promising method for in-situ removal of many organic pesticides and pesticide residues.A short-term field experiment(1 year)was conducted to explore the potential role of a PCNB-degrading bacterial isolate,Cupriavidus ***-85,in the remediation of a PCNB-contaminated soil on which Panax notoginseng was *** following three treatments were used:i)control soil amended with wheat bran but without YNS-85,ii)soil with 0.15 kg m-2of solid bacterial inoculum(A),and iii)soil with 0.30 kg m-2of solid bacterial inoculum(B).The removal of soil PCNB during the microbial remediation was monitored using gas *** catalase and fluorescein diacetate(FDA)esterase activities were determined using *** addition,cultivable bacteria,fungi,and actinomycetes were counted by plating serial dilutions,and the microbial biodiversity of the soil was analyzed using *** 1 year of in-situ remediation,the soil PCNB concentrations decreased significantly by 50.3%and 74.2%in treatments A and B,respectively,when compared with the uninoculated *** soil catalase activity decreased in the presence of the bacterial isolate,the FDA esterase activity decreased in treatment A,but increased in treatment *** significant changes in plant biomass,diversity of the soil microbial community,or physicochemical properties of the soil were observed between the control and inoculated groups(Premediation of PCNB-contaminated soils under ***.

关键词： Cupriavidus sp.YNS-85 enzyme activities in-situ remediation PCNB removal soil

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