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Selective recovery of Cu2+ and Ni2+ from wastewater using bioelectrochemical system

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Frontiers of Environmental Science & Engineering 2015年第3期9卷 522-527页

作者： Haiping LUO Bangyu QIN Guangli LIU Renduo zhang Yabo {1. Yanping HOU School of Environmental Science and Engineering Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology Sun Yat-sen University

As the bioelectrochemical system, the microbial fuel cell(MFC) and the microbial electrolysis cell(MEC) were developed to selectively recover Cu2+and Ni2+ions from wastewater. The wastewater was treated in the cathode chambers of the system, in which Cu2+and Ni2+ions were removed by using the MFC and the MEC,respectively. At an initial Cu2+concentration of 500 mg$L–1. removal efficiencies of Cu2+increased from 97.0% 1.8% to 99.0% 0.3. with the initial Ni2+concentrations from 250 to 1.00 mg$L–1. and maximum power densities increased from 3.1.0.5 to 5.4 0.6 W$m–3. The Ni2+removal mass in the MEC increased from 6.8 0.2 to20.5 1.5 mg with the increase of Ni2+concentrations. At an initial Ni2+concentration of 500 mg$L–1. Cu2+removal efficiencies decreased from 99.1. 0.3. to 74.2% 3.8%with the initial Cu2+concentrations from 250 to 1.00 mg$L–1. and maximum power densities increased from3.0 0.1.to 6.3.{13. W$m–3. Subsequently, the Ni2+removal efficiencies decreased from 96.9% 3.1. to73.3. 5.4%. The results clearly demonstrated the feasibility of selective recovery of Cu2+and Ni2+from the wastewater using the bioelectrochemical system.

关键词： bioelectrochemical system Cu2+ Ni2+ selective recovery

The hydrochemical characteristics and its significance of geothermal water in both sides of large fault: Taking northern section of the Liaokao fault in north China as an example

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China Geology 2019年第4期2卷 512-521页

作者： Bao-jian zhang Tian Zhao Yan-yan Li Yi-fei Xing Gui-ling Wang Jun Gao Xian-chun {1. Wen-zhen Yuan Dai-lei zhang chinese {1. of Geological sciences China Geological SurveyMinistry of Natural ResourcesBeijing 100037China SinoProbe Center Chinese Academy of Geological SciencesChina Geological SurveyMinistry of Natural ResourcesBeijing 100037China Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesChina Geological SurveyMinistry of Natural ResourcesShijiazhuang 050061China

Based on comparative analysis on hydrochemical characteristics of geothermal water in the north part of Liaokao fault,this research focuses on studying the indicative significance of hydrochemical characteristics for the formation of geothermal *** result shows that:(1.There is no obvious hydraulic connection between the karst geothermal water(occurred in the east part of the Liaokao fault)and the sandstone geothermal water(occurred in the west part of Liaokao fault).(2)In a close hydrological environment,caused by tectonic activities,geothermal water remains longer time in reservoir,hence the water-rock interaction is more complete,with high degree of concentrations,whereas the renewable capacity of the water is weaker.(3.There is no high temperature mantle source fluid mixed in the geothermal *** geothermal water occurred deep circulatory convection along Liaokao fault and its secondary fault,therefore there is deep crust source fluid added into the geothermal water,closer to the Liaokao fault,the greater affected by the deep crust ***,sandstone geothermal water has weak deep circulatory convection.

关键词： Geothermal survey engineering Large-scale fault Hydrochemistry Geothermal water Zonal characteristics Indicative meaning Liaokao fault North China

Sedimentary environment and petrological features of organic-rich fine sediments in shallow water overlapping deposits: A case study of Cambrian Yuertus Formation in northwestern Tarim Basin, NW China

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Petroleum Exploration and Development 2020年第3期47卷 513-526页

作者： JIN Zhimin TAN Xiucheng tang Hao SHEN Anjiang QIAO Zhanfeng ZHENG Jianfeng LI Fei {1. Shixuan CHEN lei ZHOU Chenggang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China Key Laboratory of Carbonate Reservoir CNPCHangzhou 310023China Korla Branch of Geophysical Research Institute BGP Inc.Korla 841000China

Taking the Cambrian Yuertus Formation outcrop profiles in the Aksu-Keping-Wushi areas of northwestern Tarim Basin as examples, the depositional environments of organic rich fine sediment were analyzed by examining the outcrop profiles macroscopically and microscopically. The study reveals that:(1. The lower part of the Yuertus Formation consists of organic-rich fine sediment or thin rhythmic interbeds of organic-rich fine sediment and siliceous sediment, the formation transforms to terrigenous diamictic grain shoal and inverse grading carbonate rocks upward.(2) The thin limestone interbedded with dark shale rhythmically has inverse grading.(3. The thin-bedded siliceous rock has metasomatic residual granular texture, stromatolithic structure and cementation fabric in vugs.(4) There are iron crust layers at the top of the shallowing diamictic grain shoal, beneath which exposed karst signs, such as karrens, dissolved fissures, sack-like vugs, near surface karst(plastic) breccia, breccia inside the karst system and terrigenous clastic fillings, can be seen.(5) Both the outcrops and seismic profiles show that organic-rich fine sediments above the unconformities or exposed surfaces are characterized by overlapping. The organic-rich fine sediment of the Cambrian Yuertus Formation was deposited in the anoxic-suboxidized restricted gulf lagoon environment, and its formation was controlled by high paleoproductivity and poor oxygen exchange jointly, then a shallow-water overlapping sedimentary model has been established. The results will help enrich and improve the sedimentary theory of organic-rich fine sediments.

关键词： fine-grained sediments source rock shallow water overlap exposed surface paleokarst sedimentary model Cambrian Yuertus Formation Tarim Basin

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Evolutionary rates of mitochondrial sequences and gene orders in Spirurina(Nematoda)are episodic but synchronised

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water Biology and Security 2022年第2期1卷 49-59页

作者： Hong Zou Hong-Peng lei Rong Chen Fang-Lin Chen Wen-Xiang Li Ming Li Dong {1. Ivan Jakovlic Gui-tang Wang Key Laboratory of Aquaculture Disease Control Ministry of AgricultureState Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhan 430072China State Key Laboratory of Grassland Agro-Ecosystem Institute of Innovation EcologyLanzhou UniversityLanzhou 730000China Bio-Transduction Lab Wuhan 430075China University of chinese academy of sciences Beijing 100049China

In contrast to highly conserved mitogenomic architecture in most metazoan lineages,which indicates that rearrangement events are generally strongly selected against,a limited number of often unrelated lineages exhibit highly elevated architectural evolution *** underlying reasons for this discontinuity in the mitogenomic evolution remain *** we sequenced the mitochondrial genome of the first Camallanoidea species,Camallanus cotti(Nematoda:Chromadorea:Spirurina:Camallanidae),and found that it exhibited a highly disrupted *** hypothesised that disrupted architecture might be a synapomorphic feature of the sister-clades Camallanoidea and *** this study,we sequenced mitogenomes of three freshwater fish-parasitic nematodes:Camallanus lacustris(Camallanidae),and two Philometridae(Dracunculoidea)species,Clavinema parasiluri,and Philometra *** partial agreement with the working hypothesis,both Camallanoidea species had exceptionally large mitogenomes of 1.–1. Kbp,albeit the underlying reasons differed:in *** it was the existence of a single enlarged noncoding region of5.5 Kbp.A segment of this region exhibited an inverted base composition skew,which is indicative of a sequence inversion or recombination *** is the second identified chromadorean(first for Spirurina)family that exhibits within-family protein-coding gene rearrangements,and the absence of trnL1.and trnF may be a synapomorphy for *** underlying reason for the disrupted architecture of Camallanidae does not appear to be a particular event shared by their common ancestor,but rather an underlying mechanism that makes disruptive events more likely in this *** disagreement with the working hypothesis,Spiruromorpha and Oxyuridomorpha exhibited even more highly rearranged gene orders and greater overall branch lengths than ***,withininfraorder architecture was highly conserved and leaf nodes very ***

关键词： Branch length Gene order rearrangement Inversion Recombination Molecular clock Episodic evolution Camallanidae Philometridae Camallanomorpha

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鸟巢蕨水提取液对兔成骨细胞的影响

上海中医药杂志 2011年第8期45卷 69-72页

作者：陈庆玉寇冬权王伟张伟程少文林忠勤吕传柱彭磊温州医学院附属第二医院骨科浙江温州325000 海南医学院附属医院创伤中心海南海口570102

目的研究鸟巢蕨水提取液对体外培养成骨细胞增殖及分化作用的影响,探讨其促进骨折愈合、防治骨质疏松的机制。方法将不同浓度的鸟巢蕨提取液(分别为0g/L、1.0g/L、1.2g/L、1.4g/L、1.5g/L、1.6g/L、2.0g/L,共7组)与成骨细胞共同体外培养... 详细信息

目的研究鸟巢蕨水提取液对体外培养成骨细胞增殖及分化作用的影响,探讨其促进骨折愈合、防治骨质疏松的机制。方法将不同浓度的鸟巢蕨提取液(分别为0g/L、1.0g/L、1.2g/L、1.4g/L、1.5g/L、1.6g/L、2.0g/L,共7组)与成骨细胞共同体外培养,进行相应的干预。观察细胞形态,检测成骨细胞增殖与分化指标(包括Ⅰ型胶原蛋白、碱性磷酸酶、骨钙素量、钙盐沉积量和矿化结节)。结果与同一时间点的空白组比较,除第1.的1.0g/L组外,其余各组的成骨细胞增殖差异均具有统计学意义(P1.。与空白组比较,其余组别平均光密度值、碱性磷酸酶含量、骨钙素含量、钙沉积量差异均具有统计学意义(P1.。与空白组比较,除1.0g/L组外,其余组别矿化结节数差异均具有统计学意义(P1.。同一时间点1.6g/L组与2.0g/L组比较,成骨细胞增殖差异均无统计学意义(P>0.05);1.6g/L组与2.0g/L组比较,平均光密度值、碱性磷酸酶含量、骨钙素含量、矿化结节数差异无统计学意义(P>0.05),钙沉积量差异具有统计学意义(P1.。结论鸟巢蕨水提取液对成骨细胞的增殖分化具有促进作用,适宜浓度下具有促进成骨细胞增殖分化作用,过高浓度后作用达到饱和。

关键词：鸟巢蕨成骨细胞骨钙素骨质疏松

Construction of PEG-mediated Genetic Transformation and Gene Knockout System in Fusarium oxysporum f. *** Tropic Race 4

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Agricultural Biotechnology 2020年第1期9卷 15-17,21页

作者： lei {1. Yan GUO Yunyue WANG Weihua tang Sijun ZHENG State Key Laboratory for conservation and Utilization of Bio-Resources in Yunnan Ministry of Education Key Laboratory of Agriculture Biodiversity for Plant Disease ManagementYunnan Agricultural UniversityKunming 650201China Agricultural Environment and Resources Institute Yunnan Academy of Agricultural SciencesKunming 650205China Institute of Plant Physiology and Ecology Shanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China Bioversity International Kunming 650205China

Fusarium wilt of banana, caused by Fusarium oxysporum f. sp. cubense tropic race 4(Foc TR4), is a typical vascular and soil-borne disease which has significantly threatened the sustainable development of banana industry. In order to reveal the infection process and pathogenesis of Foc TR4, the young mycelia(66.7 mg/ml) of wild-type strain of Foc TR4(WT-Foc TR4) cultured for 1.-20 h were lysed with enzyme mixture for protoplast formation, which consisted of 25 mg/ml driselase, 0.4 mg/ml chitinase, 1. mg/ml lysing enzyme and 1.2 mol/L potassium chloride. The resulted protoplasts of 2×1.~7 cells/ml were used to test the efficiency of transformation mediated by polyethylene glycol, and up to 9 transformants per microgram of DNA were obtained. AmCyan, RFP and YFP genes were stably transferred into the WT-Foc TR4, separately, using the protoplast transformation system. The gene FoOCH1.encoding α-1. 6-mannosyltransferase in the WT-Foc TR4 was knocked out using the split-marker recombination technology. The genetic transformation and gene knockout system in this pathogen lays a foundation for the study of functional genomics and plant-pathogen interactions.

关键词： Fusarium wilt of banana Fusarium oxysporum f.sp.cubense Protoplasts Transformation Split-marker recombination

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基于飞秒激光改性表面核化点密度研究

核动力工程 2022年第5期43卷 95-99页

作者：唐吴宇周磊张君毅闫晓中国核动力研究设计院中核核反应堆热工水力技术重点实验室成都610213

以不锈钢材料为实验件,采用飞秒激光技术加工有序微纳结构来制备改性表面,并以去离子水为工质开展池沸腾核化点密度实验研究,获取了不同热工参数条件下3.不同实验表面(常规表面、改性表面1.改性表面2)的核化点密度实验数据,定量分析... 详细信息

以不锈钢材料为实验件,采用飞秒激光技术加工有序微纳结构来制备改性表面,并以去离子水为工质开展池沸腾核化点密度实验研究,获取了不同热工参数条件下3.不同实验表面(常规表面、改性表面1.改性表面2)的核化点密度实验数据,定量分析了核化点密度随壁面过热度的变化规律,并以李权模型为基础拟合得到改进核化点密度模型。研究发现,3.实验表面的核化点密度均随壁面过热度的升高而增大,且相同热工参数下改性表面的核化点密度显著大于常规表面;改进模型优化了核化点密度的预测值,且预测值与实验数据吻合较好。

关键词：核化点密度池沸腾飞秒激光改性表面改进模型

Treadmill running exercise protects the neurons in the hippocampus of mid-aged APP/PS1.transgenic mice

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Treadmill running exercise protects the neurons in the hippo...

Selective recovery of Cu^2＋ and Ni^2＋ from wastewater using bioelectrochemical system

中国神经科学学会第十二届全国学术会议

作者： Fenglei Chao Lin Jiang Yi {1. Chunni Zhou lei {1. Yanqing Zhu Jing Ma Yong tang Department of Histology and Embryology Chongqing Medical University Laboratory of Stem Cell and Tissue Engineering Chongqing Medical University

Objective It has been recognized that the risk of cognitive decline during Alzheimer’s disease（AD） can be reduced if one maintains physical activity, yet there is argument about the neural events underlying this beneficial effect. The present study was designed to investigate the neural events underlying the effect of running exercise on mid-aged AD. Methods 1.-month-old male APP/PS1.mice were randomly assigned to control group（AD control） or running group（AD runner）, and age-matched nontransgenic littermates mice were used as a wild-type group（WT control）. AD runner mice were subjected to a treadmill running protocol（regular and moderate intensity） for four months. The spatial learning and memory abilities were assessed using the Morris water maze. The amyloid plaques in the hippocampus were observed using Thioflavine S techniques and immunohistochemistry. The hippocampal volume, the total number of the neurons and the total number of the newborn cells（Brdu+ cells） in the hippocampus were estimated using the stereological techniques. The newborn neurons were observed using double-labelling immunofluorescence. Results（1. The spatial learning and memory abilities of AD runner mice were significantly better than those of AD control mice.（2） Although there were no significant differences in the total hippocampal volume and the volume of the hippocampal sub-regions among the three groups, the number of the amyloid plaques of hippocampus in AD runner mice was less than that in AD control mice.（3. The neuronal number both in the CA1.field and in the dentate gyrus（DG） of AD control mice were significantly less than those of WT control mice. AD runner mice had more neurons in the DG in comparison with AD control mice.（4） The total number of newborn cells and the density of the newborn neurons in the DG of AD control mice were significantly less than those of WT control mice, and AD runner mice had more newborn cells and newborn neurons in the DG when compared to AD control

关键词： Neuron Brdu+ cell Newborn neuron Transgenic AD mice Running exercise

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Frontiers of Environmental Science & Engineering 2015年第3期9卷 522-527页

As the bioelectrochemical system, the microbial fuel cell （MFC） and the microbial electrolysis cell （MEC） were developed to selectively recover Cu^2＋ and Ni^2＋ ions from wastewater. The wastewater was treated in the cathode chambers of the system, in which Cu^2＋ and Ni^2＋ ions were removed by using the MFC and the MEC, respectively. At an initial Cu^2＋ concentration of 500 mg· L^-1. removal efficiencies of Cu^2＋ increased from 97.0%±1.8% to 99.0%±0.3. with the initial Ni^2＋ concentrations from 250 to 1.00 mg· L^-1. and maximum power densities increased from 3.1.0.5 to 5.4±0.6W.m-3. The Ni^2＋ removal mass in the MEC increased from 6.84-0.2 to 20.54-1.5 mg with the increase of Ni^2＋ concentrations. At an initial Ni^2＋ concentration of 500 mg· L^-1. Cu^2＋ removal etticiencies decreased from 99.1.±0.3. to 74.2%±3.8% with the initial Cu^2＋ concentrations from 250 to 1.00 mg -L1. and maximum power densities increased from 3.0±0.1.to 6.3.{13.W.m^-3. Subsequently, the Ni^2＋ removal efficiencies decreased from 96.9%-4-3.1. to 73.3.4-5.4%. The results clearly demonstrated the feasibility of selective recovery of Cu2~ and Ni2~ from the wastewater using the bioelectrochemical system.

关键词： bioelectrochemical system Cu^2+ Ni^2+ selective recovery