Influence of feedstock on the copper removal capacity of waste-derived biochars

被引：75
作者：
Aran, Diego [1 ,2 ]
Antelo, Juan [1 ,2 ]
Fiol, Sarah [2 ,3 ]
Macias, Felipe [1 ]
机构：
[1] Univ Santiago de Compostela, Dept Soil Sci & Agr Chem, Santiago De Compostela 15782, Spain
[2] Univ Santiago de Compostela, Inst Invest Tecnol, Santiago De Compostela 15782, Spain
[3] Univ Santiago de Compostela, Dept Phys Chem, Santiago De Compostela 15782, Spain
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 212卷
关键词：
Biochar; Copper; Adsorption; Slow pyrolysis; AQUEOUS-SOLUTION; FAST PYROLYSIS; HEAVY-METALS; ADSORPTION; CADMIUM; LEAD; BIOAVAILABILITY; CONTAMINANTS; MECHANISMS; SORPTION;
D O I：
10.1016/j.biortech.2016.04.043
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Biochar samples were generated by low temperature pyrolysis of different types of waste. The physicochemical characteristics of the different types of biochar affected the copper retention capacity, by determining the main mechanism involved. The capacity of the biochar to retain copper present in solution depended on the size of the inorganic fraction and varied in the following order: rice biochar > chicken manure biochar > olive mill waste biochar > acacia biochar > eucalyptus biochar > corn cob biochar. The distribution of copper between the forms bound to solid biochar, dissolved organic matter and free organic matter in solution also depended on the starting material. However, the effect of pH on the adsorption capacity was independent of the nature of the starting material, and the copper retention of all types of biochar increased with pH. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：199 / 206
页数：8
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