Phosphogypsum as a novel modifier for distillers grains biochar removal of phosphate from water

被引：110
作者：
Wang, Bing [1 ,2 ,3 ]
Lian, Guoqi [3 ,4 ]
Lee, Xinqing [3 ]
Gao, Bin [5 ]
Li, Ling [3 ]
Liu, Taoze [6 ]
Zhang, Xueyang [7 ]
Zheng, Yulin [5 ]
机构：
[1] Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550025, Guizhou, Peoples R China
[2] Minist Nat Resources, Key Lab Karst Environm & Geohazard, Guiyang 550025, Guizhou, Peoples R China
[3] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China
[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[5] Univ Florida, Dept Agr & Biol Engn, Gainesville, FL 32611 USA
[6] Guizhou Minzu Univ, Coll Ecoenvironm Engn, Guiyang 550025, Guizhou, Peoples R China
[7] Xuzhou Univ Technol, Sch Environm Engn, Xuzhou 221018, Jiangsu, Peoples R China
来源：
CHEMOSPHERE | 2020年 / 238卷
关键词：
Distillers grains; Biochar; Phosphate adsorption; Pyrolysis; Modification; AQUEOUS-SOLUTIONS; WASTE-WATER; PYROLYSIS TEMPERATURE; SOYBEAN STOVER; LOW-COST; ADSORPTION; PHOSPHORUS; AMMONIUM; EUTROPHICATION; COMPOSITES;
D O I：
10.1016/j.chemosphere.2019.124684
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A novel biochar composite was fabricated via the pyrolysis of distillers grains treated phosphogypsum for phosphate removal from water. Batch adsorption experiments were performed on the adsorption characteristics of phosphate. Effects of pyrolysis temperature, solution pH, the dosage of adsorbent, ambient temperature on phosphate adsorption were also investigated. The results demonstrated that the optimum initial solution pH for phosphate adsorption was 6.0, and high pyrolysis temperature was favorable for phosphate adsorption. The optimal dosage of biochar was 1.25 g L-1. A pseudo-secondorder kinetic model can well explain the adsorption kinetics, indicative of the energetically heterogeneous solid surface of the composite. The maximum phosphate adsorption capacity of the phosphogypsum modified biochar obtained from Langmuir isotherm reached 102.4 mg g(-1) which was almost five times that of distillers grains biochar alone (21.5 mg g(-1)). The mechanism is mainly attributed to electrostatic adsorption, surface precipitation and ligand exchange. The ideal adsorption performance indicated that biochar supported phosphogypsum can be used as high-quality adsorbent for phosphate removal in wastewater treatment. (C) 2019 Elsevier Ltd. All rights reserved.
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页数：8
相关论文
共 65 条
[1]   Biochar as a sorbent for contaminant management in soil and water: A review [J].
Ahmad, Mahtab ;
Rajapaksha, Anushka Upamali ;
Lim, Jung Eun ;
Zhang, Ming ;
Bolan, Nanthi ;
Mohan, Dinesh ;
Vithanage, Meththika ;
Lee, Sang Soo ;
Ok, Yong Sik .
CHEMOSPHERE, 2014, 99 :19-33
[2]   Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water [J].
Ahmad, Mahtab ;
Lee, Sang Soo ;
Dou, Xiaomin ;
Mohan, Dinesh ;
Sung, Jwa-Kyung ;
Yang, Jae E. ;
Ok, Yong Sik .
BIORESOURCE TECHNOLOGY, 2012, 118 :536-544
[3]   Lake eutrophication and community structure [J].
Alimov, A. F. ;
Golubkov, M. S. .
INLAND WATER BIOLOGY, 2014, 7 (03) :185-191
[4]  
American Public Health Association American Water Works Association Water Environment Federation, 2017, STANDARD METHODS EXA, V23rd ed.
[5]   Harmful algal blooms and eutrophication: Examining linkages from selected coastal regions of the United States [J].
Anderson, Donald M. ;
Burkholder, Joann M. ;
Cochlan, William P. ;
Glibert, Patricia M. ;
Gobler, Christopher J. ;
Heil, Cynthia A. ;
Kudela, Raphael M. ;
Parsons, Michael L. ;
Rensel, J. E. Jack ;
Townsend, David W. ;
Trainer, Vera L. ;
Vargo, Gabriel A. .
HARMFUL ALGAE, 2008, 8 (01) :39-53
[6]   Effect of pyrolysis temperature and heating rate on biochar obtained from pyrolysis of safflower seed press cake [J].
Angin, Dilek .
BIORESOURCE TECHNOLOGY, 2013, 128 :593-597
[7]  
[Anonymous], 2015, Biochar for Environmental Management: Science, Technology and Implementation
[8]  
[Anonymous], 2007, ASTM Standard D1762-84
[9]   Phosphorus control is critical to mitigating eutrophication [J].
Carpenter, Stephen R. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2008, 105 (32) :11039-11040
[10]   Environmental-friendly montmorillonite-biochar composites: Facile production and tunable adsorption-release of ammonium and phosphate [J].
Chen, Liang ;
Chen, Xiao Long ;
Zhou, Chun Hui ;
Yang, Hui Min ;
Ji, Sheng Fu ;
Tong, Dong Shen ;
Zhong, Zhe Ke ;
Yu, Wei Hua ;
Chu, Mao Quan .
JOURNAL OF CLEANER PRODUCTION, 2017, 156 :648-659
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