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Iron Species-Impregnated Granular Activated Carbon as Modified Particle Electrodes Applied in Benzothiazole Adsorption and Electrocatalytic Degradation

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Journal of Harbin Institute of Technology(New Series) 2017年第3期24卷 39-49页

作者： jie ding dihui song xianshu liu zhao song gaofeng wu school of municipal and environmental engineering harbin institute of technologyHarbin 150001China

The object of this study is to prepare iron species-impregnated granular activated carbon as particle electrodes in order to improve their adsorption and electrocatalytic degradation capacity in Benzothiazole *** incorporation of Fe-containing catalysts was performed by Fe(NO_3)_3 *** obtained samples were characterized by BET,Fourier transform infrared spectroscopy,SEM-EDS,powder X-ray diffraction,X-ray photoelectron spectra and *** with pure activated carbon,this modified particle electrodes show higher static adsorption capacities and TOC removal,which have respectively increased by25.9% and 54.4%.Both physisorption and chemisorption exist in the process of benzothiazole adsorption,where the latter plays a major *** this way,the Fe-containing catalysts on modified particle electrodes are demonstrated to make a greater contribution to the improvement of electrocatalytic degradation by decreasing the activated energy by 32%.

关键词： modified activated carbon iron particle electrodes Benzothiazole adsorption electrocatalytic degreadation

Genetic study on the behavior of honeybees influenced by polyandry system

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Chinese Science Bulletin 1999年第20期44卷 1895-1898页

作者： Yan Ouyang Liming Wu Feng Jin Wei Shi Pingping Tan Qinhua Bai xianshu liu Chinese Acad Sci Inst Genet Beijing 100101 Peoples R China Chinese Acad Agr Sci Inst Apicultural Res Beijing 100093 Peoples R China

Within a honeybee population, due to polyandry, there are super-sister and half-sister relations, thus many sub-families exist. For the Chinese honeybee (Apis cerana cerana F.) a phylogenetic dendrogram has been constructed in which 4 sub-families are clustered based on DNA fingerprint patterns. And it has been observed that each kind of workers is distributed to several different sub-families.

关键词： Apis cerana cerana F. DNA fingerprints polyandry behavior.

Degradation Pathway of Benzothiazole and Microbial Community Structure in Microbial Electrolysis Cells

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Journal of Harbin Institute of Technology(New Series) 2019年第6期26卷 1-7页

作者： xianshu liu Jie Ding Nanqi Ren Shuangyang Zhao Luyan Zhang Yan Li Qingyue Tong State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology

In this study, benzothiazole was entirely mineralized by an up-flow internal circulation microbial electrolysis reactor. The bioelectrochemical system was operated at ambient temperature under continuous-flow mode. The analysis of metabolite which was extracted by HPLC-MS from the bioreactor indicated that benzothiazole derivative ( BTH ) was firstly converted into 2-hydroxybenzothiazole in the microbial electrolysis cell (MEC) and then mineralized within three steps, i.e., the fracture of thiazole-ring through a series of oxidation and hydrolysis, the deamination and hydroxylation of 2-aminobenzenesulfonic acid, and the mineralization of various carboxylic acids to CO2 and H2O. Bacterial community analysis indicated that the applied electric field could selectively enrich certain species and the dominate bacteria on the electrodes belonged to Proteobacteria, Bacteroidetes, and Firmicutes. Results show that MEC can improve the degradation efficiency of BTH in wastewater, enable the microbiological reactor to satisfy the requirements of high loading rate, thereby fulfilling the scale-up of whole process in the future.

关键词： benzothiazole microbial electrolysis cell intermediate product biodegradation pathway high-throughput sequencing

Modeling of ion cyclotron resonance frequency heating of proton-boron plasmas in EHL-2 spherical tokamak

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Plasma Science and Technology 2024年第10期26卷 39-48页

作者： xianshu WU Jingchun LI Jiaqi DONG Yuejiang SHI Guoqing liu Yong liu Zhiqiang LONG Buqing ZHANG Baoshan YUAN Y.K.Martin PENG Minsheng liu Shenzhen Key Laboratory of Nuclear and Radiation Safety Institute for Advanced Study in Nuclear Energy&SafetyCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 510640People’s Republic of China Department of Earth and Space Sciences Southern University of Science and TechnologyShenzhen 518055People’s Republic of China ENN Science and Technology Development Co. Ltd.and Hebei Key Laboratory of Compact FusionLangfang 065001People’s Republic of China Siemens Shenzhen Magnetic Resonance Ltd. Shenzhen 518057People’s Republic of China

Ion cyclotron resonance heating(ICRH)stands out as a widely utilized and cost-effective auxiliary method for plasma heating,bearing significant importance in achieving high-performance discharges in p-^(11)B *** light of the specific context of p-^(11)B plasma in the EHL-2 device,we conducted a comprehensive scan of the fundamental physical parameters of the antenna using the full-wave simulation program *** preliminary result indicated that for p-^(11)B plasma,optimal ion heating parameters include a frequency of 40 MHz,with a high toroidal mode number like N_(?)=28 to heat the majority H *** addition,we discussed the impact of concentration of minority ion species on ion cyclotron resonance heating when^(11)B serves as the heavy minority *** significant difference in charge-to-mass ratio between boron and hydrogen ions results in a considerable distance between the hybrid resonance layer and the tow inverted cyclotron resonance layer,necessitating a quite low boron ion concentration to achieve effective minority *** also considered another method of direct heating of hydrogen ions in the presence of boron ion *** is found that at appropriate boron ion concentrations(X(^(11)B)~17%),the position of the hybrid resonance layer approaches that of the hydrogen ion cyclotron resonance layer,thereby altering the polarization at this position and significantly enhancing hydrogen ion fundamental absorption.

关键词： ICRF hydrogen-boron fusion mode conversion fundamental absorption

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三维电催化处理苯并噻唑反应器结构优化

化工进展 2017年第1期36卷 91-99页

作者：丁杰宋昭宋迪慧刘先树哈尔滨工业大学市政环境工程学院黑龙江哈尔滨150090

采用复极性三维电催化反应器降解苯并噻唑,通过考察三维电极反应器的结构参数,从而提高污染物处理效果的同时降低电催化反应体系的能耗。首先以反应体系的矿化率、矿化电流效率及能耗为评价指标,优化了反应器的电极型式。然后利用Design... 详细信息

采用复极性三维电催化反应器降解苯并噻唑,通过考察三维电极反应器的结构参数,从而提高污染物处理效果的同时降低电催化反应体系的能耗。首先以反应体系的矿化率、矿化电流效率及能耗为评价指标,优化了反应器的电极型式。然后利用Design-Expert软件中的Box-Behnken响应曲面法,以外加电压、电极间距和粒子电极填充比例为自变量,TOC去除率为响应值,研究了各变量及其相互作用对TOC去除率的影响,并通过求解回归方程得到多元二次回归方程的预测模型。结果表明,电极间距和外加电压对TOC的影响最大,且电极间距和外加电压具有明显的交互性作用。预测分析最大TOC去除率为98.18%,相应的最优结构参数为:外加电压9.9V,电极间距4.2cm,粒子电极填充比60%,在最优条件下进行试验,实际值与预测值具有良好的一致性,偏差为1.71%。

关键词：电化学降解模型结构参数苯并噻唑响应曲面分析法

序批式复极性三维电催化反应器降解苯并噻唑的影响因素

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环境工程学报 2017年第6期11卷 3453-3460页

作者：丁杰宋迪慧刘先树宋昭哈尔滨工业大学市政环境工程学院哈尔滨150093

设计构建了序批式复极性三维电催化反应器,以自制的Fe/Fe2O_3/Fe3O_4/AC作为粒子电极,考察了电解质种类及浓度、进水pH、上升流速、进水时间和电催化反应时间多个因素对序批式复极性三维电催化反应器去除苯并噻唑的影响。通过对苯并噻... 详细信息

设计构建了序批式复极性三维电催化反应器,以自制的Fe/Fe2O_3/Fe3O_4/AC作为粒子电极,考察了电解质种类及浓度、进水pH、上升流速、进水时间和电催化反应时间多个因素对序批式复极性三维电催化反应器去除苯并噻唑的影响。通过对苯并噻唑的去除率、反应体系矿化度、矿化电流效率以及电能能耗多个指标进行评价,得到最佳运行条件:电解液为中性的0.1 mol·L^(-1)Na Cl溶液,进水时间为30 min,上升流速为8.333 m L·min^(-1),电催化反应时间为3 h。在该运行条件下,初始浓度为100 mg·L^(-1)的苯并噻唑最终被完全去除,反应体系中的矿化率达到92.0%,而消耗的电能较低仅为13.00 k W·h·(kg COD)-1。

关键词：复极性三维电催化反应器序批式苯并噻唑降解

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硫化物废水的生物处理技术研究

环境科学与管理 2009年第2期34卷 101-104页

作者：刘先树黄盼四川大学建筑与环境学院四川成都610065

生物脱硫工艺与传统工艺相比,具有明显的优越性。文章介绍了硫化物废水的各种处理技术、特点及原理,综述了国内外生物脱硫的研究现状,重点阐述了硫化物废水生物处理的几个重要的影响因素:溶解氧、pH值、硫化物负荷、反应器及填料的类型... 详细信息

生物脱硫工艺与传统工艺相比,具有明显的优越性。文章介绍了硫化物废水的各种处理技术、特点及原理,综述了国内外生物脱硫的研究现状,重点阐述了硫化物废水生物处理的几个重要的影响因素:溶解氧、pH值、硫化物负荷、反应器及填料的类型,指出利用基因工程技术构建的新型工程菌株将具有更好的脱硫效果。

关键词：生物脱硫硫化物废水溶解氧硫化物负荷

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内循环三相好氧流化床用于废水脱硫研究

四川化工 2009年第1期12卷 46-50页

作者：刘先树丁桑岚刘敏四川大学建筑与环境学院成都610065

利用内循环好氧反应器处理模拟的含硫废水，以颗粒活性炭为载体，探讨影响反应器效果的主要因素，寻求合理的运行参数。本反应器的研究表明，对于不同负荷的硫化物浓度，总存在一个最佳曝气量，使反应器的处理效率达到92％以上；HRT减... 详细信息

利用内循环好氧反应器处理模拟的含硫废水，以颗粒活性炭为载体，探讨影响反应器效果的主要因素，寻求合理的运行参数。本反应器的研究表明，对于不同负荷的硫化物浓度，总存在一个最佳曝气量，使反应器的处理效率达到92％以上；HRT减小、进水硫化物浓度增加会导致硫化物的去除率降低；增加曝气量会提高反应器的去处能力；进水pH值在7．5～8．5变化时对处理效果没有明显的影响；尾气中硫化物的吹脱率与出水硫化物的浓度是正相关的，另外与进水pH值有一定关系；当出水呈乳白色浑浊状时，反应器的处理效果最好。

关键词：内循环三相好氧流化床活性炭硫化物容积负荷曝气量

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强化混凝预处理削减中药废水的毒性

环境工程学报 2016年第11期10卷 6133-6138页

作者：余登喜丁杰刘先树张麓岩黄焕娣姜锦玉哈尔滨工业大学市政环境工程学院哈尔滨150090

采用混凝法对毒性强,COD、SS浓度高,色度大的中药废水进行预处理。首先,通过对比研究聚合硫酸铁(PFS)、聚合氯化铝(PAC)、硫酸铝(AS)、硫酸亚铁(Fe SO4·7H2O)对中药废水急性毒性和对COD、SS的去除效果,确定投加方案为PFS(500 mg·L^(-1... 详细信息

采用混凝法对毒性强,COD、SS浓度高,色度大的中药废水进行预处理。首先,通过对比研究聚合硫酸铁(PFS)、聚合氯化铝(PAC)、硫酸铝(AS)、硫酸亚铁(Fe SO4·7H2O)对中药废水急性毒性和对COD、SS的去除效果,确定投加方案为PFS(500 mg·L^(-1));其次研究了pH值、助凝剂聚丙烯酰胺(PAM)和壳聚糖(CTS)对PFS混凝效果的影响,并确定了最佳混凝参数。研究结果表明:当初始pH为7.0时,500 mg·L^(-1)PFS与8.0 mg·L^(-1)PAM配合使用对中药废水具有最佳混凝效果,COD、SS去除率分别达到38.6%、98.9%,急性毒性由EC50=8.12%的降低至EC50=41.35%,毒性级别由极强削弱至中等。

关键词：中药废水预处理强化混凝毒性削减