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玉米秸秆生物炭固化细菌对镉砷吸附

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成果类型:
期刊论文
论文标题(英文):
Adsorption of Cadmium and Arsenic by Corn Stalk Biochar Solidified Microorganism
作者:
刘玉玲;朱虎成;彭鸥;李丹阳;杨蕊嘉;...
通讯作者:
Tie, Bai-Qing(tiebq@qq.com)
作者机构:
[刘玉玲; 朱虎成; 彭鸥; 李丹阳; 杨蕊嘉; 彭晶; 铁柏清] College of Resources and Environment, Hunan Agricultural University, Changsha
410128, China
Engineering Research Center for Water Pollution Purification of Irrigation Source in Hunan Province, Changsha
Hunan Engineering Research Center for Safe and High-Efficient Utilization of Heavy Metal Pollution Farmland, Changsha
[刘玉玲; 彭鸥; 李丹阳; 杨蕊嘉; 彭晶; 铁柏清] 410128, China<&wdkj&>Engineering Research Center for Water Pollution Purification of Irrigation Source in Hunan Province, Changsha
通讯机构:
College of Resources and Environment, Hunan Agricultural University, Changsha, China
语种:
中文
关键词:
玉米秸秆生物炭;固定化;微生物;镉;砷;吸附
关键词(英文):
Adsorption;Arsenic;Bacteria;Cadmium compounds;Remediation;Soil pollution;Soils;Adsorption behavior;Adsorption characteristic;Adsorption materials;Adsorption performance;Cd-contaminated soils;Effective materials;Isothermal adsorption;Saturated adsorption capacity;Cadmium;arsenic;biochar;cadmium;charcoal;adsorption;maize;soil;soil pollutant;Adsorption;Arsenic;Cadmium;Charcoal;Soil;Soil Pollutants;Zea mays
期刊:
环境科学
ISSN:
0250-3301
年:
2020
卷:
41
期:
9
页码:
4322-4332
基金类别:
国家重点研发计划项目(2017YFD0801505);
机构署名:
本校为第一且通讯机构
院系归属:
资源环境学院
摘要:
为了确保细菌对镉砷复合污染土壤的修复效果,对细菌进行固定化处理.本研究将细菌悬液(Delftia sp.B9,B9)、玉米秸秆生物炭(corn stalks biochar,CSB)以及玉米秸秆生物炭-细菌复合体(corn stalks biochar-bacteria complex,B-CSB)作为3种吸附材料,探究3种材料对镉和砷的吸附特性及pH对3种材料去除水中镉砷离子性能的影响,进行了等温吸附模型拟合,并采用扫描电镜(SEM)、傅里叶红外变换光谱(FT-IR)和X射线光电子能谱分析(XPS)对3种材料进行表征分析,同时探究添加B9、CSB和B-CSB对土壤中镉和砷形态变化的影响.结果表明,3种材料对Cd~(2+)的饱和吸附量分别为49.43、82.68和75.38mg·g~(-1);对As的饱和...
摘要(英文):
Immobilization of bacteria on biochar can improve the performance of the soil complex polluted with cadmium (Cd) and arsenic (As). In this study, bacteria (Delftia sp. B9, B9), biochar (corn stalks biochar, CSB), and biochar-bacteria complexes (B-CSB) were used as adsorption materials to explore the adsorption characteristics of Cd and As. The effects of pH on the adsorption performance of Cd and As and the ion removal from the aqueous solution were investigated, and the adsorption behaviors were simulated using an isothermal adsorption model. ...

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