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

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

Authors :
Juan Antelo
Felipe Macías
Sarah Fiol
Diego Arán
Source :
Bioresource Technology. 212:199-206
Publication Year :
2016
Publisher :
Elsevier BV, 2016.

Abstract

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.

Details

ISSN :
09608524
Volume :
212
Database :
OpenAIRE
Journal :
Bioresource Technology
Accession number :
edsair.doi.dedup.....4d37d4162506433a1ca2dae8cfb06cfa
Full Text :
https://doi.org/10.1016/j.biortech.2016.04.043