Performance and mechanisms of emerging animal-derived biochars for immobilization of heavy metals

Animal-derived biochars (ADBs) are a series of newly emerging biochars from the pyrolysis of animal carcasses. Their elemental composition and structural properties would be quite different to those of plant-based biochars and/or manure-derived biochars (MDBs). In this work, ADBs derived from cattle...

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Bibliographic Details
Published in:The Science of the total environment 2019-01, Vol.646, p.1281-1289
Main Authors: Lei, Sicong, Shi, Yan, Qiu, Yuping, Che, Lei, Xue, Cong
Format: Article
Language:English
Subjects:
Biochar
Hydroxyapatite
Ion exchange
Precipitation
Reduction
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Summary:Animal-derived biochars (ADBs) are a series of newly emerging biochars from the pyrolysis of animal carcasses. Their elemental composition and structural properties would be quite different to those of plant-based biochars and/or manure-derived biochars (MDBs). In this work, ADBs derived from cattle and swine carcasses were applied to investigate their sorption potentials and mechanisms for immobilization of Pb(II), Cd(II), Cu(II), and Hg(II). ADBs showed high calcium (Ca; >27%) and phosphorus (P; >15%) contents and relatively low carbon (C;
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2018.07.374