Article(id=1242132296418013928, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242132292819301094, articleNumber=null, orderNo=4, doi=10.3981/j.issn.1000-7857.2014.21.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1398614400000, receivedDateStr=2014-04-28, revisedDate=1403539200000, revisedDateStr=2014-06-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1406885614170, onlineDateStr=2014-08-01, pubDate=1406476800000, pubDateStr=2014-07-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1406885614170, onlineIssueDateStr=2014-08-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077017163, creator=sys-migrate, updateTime=1774077017163, updator=sys-migrate, issue=Issue{id=1242132292819301094, tenantId=1146029695717560320, journalId=1146031591421210625, year='2014', volume='32', issue='21', pageStart='1', pageEnd='95', issueExtLink='null', onlineDate='null', pubDate='1406476800000', pubDateStr='2014-07-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077016306, creator='sys-migrate', updateTime=1774077016306, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=21, endPage=25, ext={EN=ArticleExt(id=1242132301371482679, articleId=1242132296418013928, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Biosorption Kinetics Characteristics of Bupleurum Dreg to Zinc Ions, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=In order to explore the adsorption characteristics, liquid pH, and electrical conductivity variation characteristics of bupleurum dreg to the waste water containing zinc, the bupleurum dreg was utilized as biosorbent to remove Zn2+ with batch experiments. The effect factors on biosorption were analyzed, which included pH values, initial Zn2+ concentration (C 0 ), biosorbent concentration (ρ m ), and mesh size (M z ). Meanwhile, the isotherm biosorption and kinetics was analyzed. The results showed that the optimum condition for biosorption was as follows: pH was 4.5~6.0, ρ m was 4.0~8.0 g/L, C 0 was 0.1~2.0mmol/L, M z was 40~100 mesh. The isotherm adsorption curve of Zn2+ on bupleurum dreg accorded well with Langmuir and Freunlich model, and the R 2 value was 0.978 and 0.989 while the value of q max was 19.96 mg/g. This shows that a bupleurum dreg has excellent adsorption capacity to zinc ions. The kinetics analysis showed that the biosorption of Zn2+ on bupleurum dreg was a rapid process, and the R 2 values were all above 0.997. These indicated that its limit step was chemical adsorption process. The variation trend of pH values in liquid was increasing rapidly at initial adsorption phase and then changed slowly in the succedent phases., authors=DAI Qunwei1,3 , WANG Yan1 , ZHAO Yulian1 , ZHOU Shiping1 , YANG Xingwang2 , ZHANG Wei1 , authorsList=DAI Qunwei, WANG Yan, ZHAO Yulian, ZHOU Shiping, YANG Xingwang, ZHANG Wei, authorCompany=1. Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education; School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China;2+ 批量吸附实验研究。分析了液相pH 值、Zn2+ 初始浓度（C 0 ）、柴胡药渣加入质量浓度（ρ m ）、粒度（M z ）等因素对吸附效果的影响，并进行等温吸附模拟及吸附动力学相关分析。结果表明，实验室环境下的较佳的吸附条件为：pH 值为4.0～6.0，ρ m 为4.0~8.0 g/L，M z 为40~100 目，C 0 为0.1~2.0 mmol/L。柴胡药渣对Zn2+ 的等温吸附结果很好符合了Langmuir 和Freunlich 吸附模型，R 2 分别为0.978 和0.989；计算所得最大吸附量（q max ）达到19.96 mg/g，说明柴胡药渣对Zn2+ 有很好的吸附能力。动力学吸附分析表明，柴胡药渣对Zn2+ 的吸附是一个快速进行的反应过程，二级吸附速率方程拟合结果中R 2 均在0.997 以上，由此认为其吸附反应过程中限速步骤是化学吸附过程。柴胡药渣对Zn2+ 吸附过程中液相pH 值分析表明，pH 值呈现初始阶段迅速升高后进入缓慢变化的趋势。, authors=代群威1,3 , 王岩1 , 赵玉连1 , 周世平1 , 杨兴旺2 , 张伟1 , authorsList=代群威, 王岩, 赵玉连, 周世平, 杨兴旺, 张伟, authorCompany=1. 西南科技大学环境与资源学院; 固体废物处理与资源化省部共建教育部重点实验室, 绵阳621010;
科技导报
|研究论文
2014
, 32
(21) :
21
-25
柴胡药渣对锌离子的吸附动力学特性
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代群威1,3 , 王岩1 , 赵玉连1 , 周世平1 , 杨兴旺2 , 张伟1
作者信息
1. 西南科技大学环境与资源学院; 固体废物处理与资源化省部共建教育部重点实验室, 绵阳621010;
作者简介:
代群威，副教授，研究方向为环境友好材料，电子信箱：qw_dai@163.com
Biosorption Kinetics Characteristics of Bupleurum Dreg to Zinc Ions
DAI Qunwei1,3 , WANG Yan1 , ZHAO Yulian1 , ZHOU Shiping1 , YANG Xingwang2 , ZHANG Wei1
Affiliations
1. Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education; School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China;
出版时间: 2014-07-28
doi: 10.3981/j.issn.1000-7857.2014.21.002
文章导航
为了探讨柴胡药渣对含锌废水的吸附特性和液相pH 值、电导率变化特性，以柴胡药渣为生物吸附剂，进行了Zn2+ 批量吸附实验研究。分析了液相pH 值、Zn2+ 初始浓度（C 0 ）、柴胡药渣加入质量浓度（ρ m ）、粒度（M z ）等因素对吸附效果的影响，并进行等温吸附模拟及吸附动力学相关分析。结果表明，实验室环境下的较佳的吸附条件为：pH 值为4.0～6.0，ρ m 为4.0~8.0 g/L，M z 为40~100 目，C 0 为0.1~2.0 mmol/L。柴胡药渣对Zn2+ 的等温吸附结果很好符合了Langmuir 和Freunlich 吸附模型，R 2 分别为0.978 和0.989；计算所得最大吸附量（q max ）达到19.96 mg/g，说明柴胡药渣对Zn2+ 有很好的吸附能力。动力学吸附分析表明，柴胡药渣对Zn2+ 的吸附是一个快速进行的反应过程，二级吸附速率方程拟合结果中R 2 均在0.997 以上，由此认为其吸附反应过程中限速步骤是化学吸附过程。柴胡药渣对Zn2+ 吸附过程中液相pH 值分析表明，pH 值呈现初始阶段迅速升高后进入缓慢变化的趋势。
In order to explore the adsorption characteristics, liquid pH, and electrical conductivity variation characteristics of bupleurum dreg to the waste water containing zinc, the bupleurum dreg was utilized as biosorbent to remove Zn2+ with batch experiments. The effect factors on biosorption were analyzed, which included pH values, initial Zn2+ concentration (C 0 ), biosorbent concentration (ρ m ), and mesh size (M z ). Meanwhile, the isotherm biosorption and kinetics was analyzed. The results showed that the optimum condition for biosorption was as follows: pH was 4.5~6.0, ρ m was 4.0~8.0 g/L, C 0 was 0.1~2.0mmol/L, M z was 40~100 mesh. The isotherm adsorption curve of Zn2+ on bupleurum dreg accorded well with Langmuir and Freunlich model, and the R 2 value was 0.978 and 0.989 while the value of q max was 19.96 mg/g. This shows that a bupleurum dreg has excellent adsorption capacity to zinc ions. The kinetics analysis showed that the biosorption of Zn2+ on bupleurum dreg was a rapid process, and the R 2 values were all above 0.997. These indicated that its limit step was chemical adsorption process. The variation trend of pH values in liquid was increasing rapidly at initial adsorption phase and then changed slowly in the succedent phases.
bupleurum dreg
/
zinc ions
/
biosorption
/
kinetics
代群威, 王岩, 赵玉连, 周世平, 杨兴旺, 张伟.
柴胡药渣对锌离子的吸附动力学特性.
科技导报,
2014
, 32
(21)
: 21
-25
.
DOI: 10.3981/j.issn.1000-7857.2014.21.002
DAI Qunwei, WANG Yan, ZHAO Yulian, ZHOU Shiping, YANG Xingwang, ZHANG Wei.
Biosorption Kinetics Characteristics of Bupleurum Dreg to Zinc Ions[J].
Science & Technology Review ,
2014
, 32
(21)
: 21
-25
.
DOI: 10.3981/j.issn.1000-7857.2014.21.002
2014年第32卷第21期
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文章信息
doi: 10.3981/j.issn.1000-7857.2014.21.002
接收时间：2014-04-28
首发时间：2014-08-01
出版时间：2014-07-28
收稿日期：2014-04-28
修回日期：2014-06-24
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2014.21.002
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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