|本期目录/Table of Contents|

[1]蒋慧,郝雅琼,王荔霄,等.改性小麦秸秆生物炭对水中Cr(Ⅵ)的吸附性能[J].江苏农业科学,2020,48(07):250-255.
 Jiang Hui,et al.Adsorption properties of modified wheat straw biochar for Cr (Ⅵ) in water[J].Jiangsu Agricultural Sciences,2020,48(07):250-255.
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改性小麦秸秆生物炭对水中Cr(Ⅵ)的吸附性能(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第48卷
期数:
2020年第07期
页码:
250-255
栏目:
农业工程与信息技术
出版日期:
2020-04-13

文章信息/Info

Title:
Adsorption properties of modified wheat straw biochar for Cr (Ⅵ) in water
作者:
蒋慧 郝雅琼 王荔霄 李梦云 高进 杨博文 刘波
南通大学,江苏南通 226001
Author(s):
Jiang Huiet al
关键词:
六价铬小麦秸秆生物炭硝酸改性吸附性能影响因素
Keywords:
-
分类号:
X52
DOI:
-
文献标志码:
A
摘要:
以小麦秸秆为原料,通过高温热解和硝酸改性得到小麦秸秆生物炭吸附材料,将其应用于水中重金属六价铬[Cr(Ⅵ)]的处理,研究改性时间、溶液初始pH值、投加量对吸附效果的影响,并采用Freundlich 和Langmuir等温吸附方程对等温吸附过程进行拟合。扫描电子显微镜(scanning electron microscope,简称SEM)表征结果表明,采用硝酸改性后的小麦秸秆生物炭内部结构舒展,孔隙丰富,具有更大的吸附空间,更有利于材料对Cr(Ⅵ)的吸附作用。批量处理吸附试验结果表明,对于50 mL浓度为100 mg/L的含Cr(Ⅵ)废水,改性小麦秸秆生物炭的最佳吸附条件为pH值3、吸附剂用量0.6 g、吸附时间12 h。等温吸附试验结果表明,吸附过程更符合Freundlich模式,最大吸附量可达到41.938 mg/g。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-03-21
基金项目:江苏省大学生创新训练计划(编号:201810304037Z);江苏省大学生创新训练计划(编号:201910304114Y)。
作者简介:蒋慧(1981—),女,江苏如皋人,博士,副教授,主要从事新型环境功能材料的制备与应用研究。Tel:(0513)85015880;E-mail:61731472@qq.com。
通信作者:刘波,博士,副教授,主要从事农业环境治理方面的研究。Tel:(0513)85015880;E-mail:38760040@qq.com。
更新日期/Last Update: 2020-04-05