Enhanced removal of ammonium from water by ball-milled biochar

被引：0
作者：
Yongjun Qin
Xiaolong Zhu
Qing Su
Abdulraheem Anumah
Bin Gao
Wenqiang Lyu
Xue Zhou
Ying Xing
Bing Wang
机构：
[1] Appraisal Center for Ecology and Environment Engineering of Chongqing,State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry
[2] Chinese Academy of Sciences,Department of Agricultural and Biological Engineering
[3] University of Chinese Academy of Sciences,Institute of Guizhou Mountain Resources
[4] Management and Service Center for Solid Waste of Chongqing,School of Chemistry and Materials Science
[5] University of Florida,Puding Karst Ecosystem Research Station, State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry
[6] Guizhou Academy of Sciences,undefined
[7] Guizhou Normal University,undefined
[8] Chinese Academy of Sciences,undefined
来源：
Environmental Geochemistry and Health | 2020年 / 42卷
关键词：
Ammonium; Ball milling; Biochar; Wastewater; Adsorption;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Novel biochar was prepared by ball milling using bamboo as raw material. The aim of this study was to find a good alternative way to improve the potentials of biochar for ammonium adsorption from aqueous solution. The sorption performance of ball-milled bamboo biochar (BMBB) was compared with that of bamboo biochar (BB) using batch adsorption experiments. Different adsorption kinetics models proved that the pseudo-second order was the best kinetic model for explanation of the adsorption kinetics characteristics, indicative of the energetically heterogeneous solid surface of the biochar. The Langmuir model could fit the isothermal adsorption data of BMBB well. The maximum adsorption capacity of BMBB (22.9 mg g−1) was much higher than that of BB (7.0 mg g−1). This study offers a relatively cost-effective and efficient methodology for the improvement in the adsorption capacity of biochar for ammonium nitrogen.
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页码：1579 / 1587
页数：8
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