Enhanced removal of ammonium from water by ball-milled biochar

被引：64
作者：
Qin, Yongjun [1 ,4 ]
Zhu, Xiaolong [1 ,4 ]
Su, Qing [1 ]
Anumah, Abdulraheem [2 ,3 ]
Gao, Bin [5 ]
Lyu, Wenqiang [6 ]
Zhou, Xue [7 ]
Xing, Ying [7 ]
Wang, Bing [2 ,8 ]
机构：
[1] Appraisal Ctr Ecol & Environm Engn Chongqing, Chongqing 401121, Peoples R China
[2] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Management & Serv Ctr Solid Waste Chongqing, Chongqing 401121, Peoples R China
[5] Univ Florida, Dept Agr & Biol Engn, Gainesville, FL 32611 USA
[6] Guizhou Acad Sci, Inst Guizhou Mt Resources, Guiyang 550001, Guizhou, Peoples R China
[7] Guizhou Normal Univ, Sch Chem & Mat Sci, Guiyang 550001, Guizhou, Peoples R China
[8] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Puding Karst Ecosyst Res Stn, Puding 562100, Peoples R China
来源：
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH | 2020年 / 42卷 / 06期
关键词：
Ammonium; Ball milling; Biochar; Wastewater; Adsorption; WASTE-WATER; ENGINEERED/DESIGNER BIOCHAR; NATURAL ZEOLITE; ALGINATE BEADS; ION-EXCHANGE; PHOSPHATE; SORPTION; ADSORPTION; PHOSPHORUS; DESORPTION;
D O I：
10.1007/s10653-019-00474-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
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.
引用
收藏
页码：1579 / 1587
页数：9
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