Dairy-Manure Derived Biochar Effectively Sorbs Lead and Atrazine
University of Florida · Shanghai Jiao Tong University
Abstract
Biochar (BC) produced from agricultural crop residues has proven effective in sorbing organic contaminants. This study evaluated the ability of dairy-manure derived biochar to sorb heavy metal Pb and organic contaminant atrazine. Two biochar samples were prepared by heating dairy manure at low temperature of 200 degrees C (BC200) and 350 degrees C (BC350). The untreated manure (BC25) and a commercial activated C (AC) were included as controls. Sorption of Pb by biochar followed a dual Langmuir-Langmuir model, attributing to Pb precipitation (84-87%) and surface sorption (13-16%). Chemical speciation, X-ray diffraction, and infrared spectroscopy indicated that Pb was precipitated as beta-Pb9(PO4)6 in BC25 and…
Citation impact
- FWCI
- 24.00
- Percentile
- 100%
- References
- 31
Authors
4Topics & keywords
- Biochar
- Sorption
- Sorbent
- Atrazine
- Chemistry
- Environmental chemistry
- Adsorption
- Manure
- Zero hunger