High-efficiency removal of lead/cadmium from wastewater by MgO modified biochar derived from crofton weed

被引：138
作者：
Cheng, Song [1 ,3 ]
Zhao, Saidan [1 ]
Guo, Hui [2 ,3 ]
Xing, Baolin [1 ,3 ]
Liu, Yongzhi [1 ]
Zhang, Chuanxiang [1 ,3 ]
Ma, Mingjie [1 ]
机构：
[1] Henan Polytech Univ, Coll Chem & Chem Engn, Henan Key Lab Coal Green Convers, Jiaozuo 454003, Henan, Peoples R China
[2] Henan Polytech Univ, Sch Mat Sci & Engn, Jiaozuo 454003, Henan, Peoples R China
[3] Collaborat Innovat Ctr Coal Work Safety & Clean H, Jiaozuo 454003, Henan, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2022年 / 343卷
基金：
中国国家自然科学基金;
关键词：
Crofton weed; Pb2+/Cd2+; Adsorption; Mechanism; Column experiment; COMPETITIVE ADSORPTION; SORPTION MECHANISMS; AQUEOUS-SOLUTION; HEAVY-METALS; PB(II); CU(II); CD(II);
D O I：
10.1016/j.biortech.2021.126081
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The adsorption performance and mechanisms of Pb2+ and Cd2+ in wastewater using MgO modified biochar derived from crofton weed (MBCW600) are investigated. The Pb2+ and Cd2+ adsorption capacities of MBCW600 by the Hill model reach 384.08 mg/g and 207.02 mg/g, respectively, which is larger than that of original biochar. Pb2+ could be more easily captured by MBCW600 compared to Cd2+ in the multimetal system. Mg2+ contributes to Pb2+ and Cd2+ adsorption among coexisting cations. The exhausted MBCW600 could be well regenerated by simple method after use. The adsorption mechanism study indicates that Pb2+ and Cd2+ removal are primary contributed to mineral precipitation and ion exchange. The effective treatment volumes of Pb2+ and Cd2+ wastewater achieve 3050 mL and 2150 mL in the fixed-bed column experiment, respectively. Therefore, MBCW600 presents remarkable adsorption capability, excellent recoverability and large throughput, which shows the potential application in future treatment of wastewater containing heavy metal.
引用
收藏
页数：8
相关论文
共 38 条
[11]   Facile synthesis of hollow mesoporous MgO spheres via spray-drying with improved adsorption capacity for Pb(II) and Cd(II) [J].
Kuang, Mengjie ;
Shang, Yisheng ;
Yang, Gaoling ;
Liu, Baixiong ;
Yang, Bin .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2019, 26 (18) :18825-18833
[12]   A review of recent advancements in utilization of biomass and industrial wastes into engineered biochar [J].
Kwon, Gihoon ;
Bhatnagar, Amit ;
Wang, Hailong ;
Kwon, Eilhann E. ;
Song, Hocheol .
JOURNAL OF HAZARDOUS MATERIALS, 2020, 400
[13]   Mechanisms of metal sorption by biochars: Biochar characteristics and modifications [J].
Li, Hongbo ;
Dong, Xiaoling ;
da Silva, Evandro B. ;
de Oliveira, Letuzia M. ;
Chen, Yanshan ;
Ma, Lena Q. .
CHEMOSPHERE, 2017, 178 :466-478
[14]   Utilization of biochar produced from invasive plant species to efficiently adsorb Cd (II) and Pb (II) [J].
Lian, Wanli ;
Yang, Li ;
Joseph, Stephen ;
Shi, Wei ;
Bian, Rongjun ;
Zheng, Jufeng ;
Li, Lianqing ;
Shan, Shengdao ;
Pan, Genxing .
BIORESOURCE TECHNOLOGY, 2020, 317
[15]   Magnesium Oxide Embedded Nitrogen Self-Doped Biochar Composites: Fast and High-Efficiency Adsorption of Heavy Metals in an Aqueous Solution [J].
Ling, Li-Li ;
Liu, Wu-Jun ;
Zhang, Shun ;
Jiang, Hong .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2017, 51 (17) :10081-10089
[16]   Capacity and potential mechanisms of Cd(II) adsorption from aqueous solution by blue algae-derived biochars [J].
Liu, Panyang ;
Rao, Dean ;
Zou, Luyi ;
Teng, Yue ;
Yu, Hongyan .
SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 767
[17]   Efficient solid amino acid-clinoptilolite nanoparticles adsorbent for Mn(II) removal: A comprehensive study on designing the experiments, thermodynamic and kinetic aspects [J].
Mehrali-Afjani, Meymanat ;
Nezamzadeh-Ejhieh, Alireza .
SOLID STATE SCIENCES, 2020, 101
[18]   Competitive adsorption of heavy metals in aqueous solution onto biochar derived from anaerobically digested sludge [J].
Ni, Bing-Jie ;
Huang, Qi-Su ;
Wang, Chen ;
Ni, Tian-Yi ;
Sun, Jing ;
Wei, Wei .
CHEMOSPHERE, 2019, 219 :351-357
[19]   Effect of biochar aging and co-existence of diethyl phthalate on the mono-sorption of cadmium and zinc to biochar-treated soils [J].
Nie, Tianhong ;
Yang, Xing ;
Chen, Hanbo ;
Muller, Karin ;
Shaheen, Sabry M. ;
Rinklebe, Joerg ;
Song, Hocheol ;
Xu, Song ;
Wu, Fengchang ;
Wang, Hailong .
JOURNAL OF HAZARDOUS MATERIALS, 2021, 408
[20]   Focus on scavengers' effects and GC-MASS analysis of photodegradation intermediates of sulfasalazine by Cu2O/CdS nanocomposite [J].
Omrani, Narges ;
Nezamzadeh-Ejhieh, Alireza .
SEPARATION AND PURIFICATION TECHNOLOGY, 2020, 235
1234