Journal
JOURNAL OF CLEANER PRODUCTION
Volume 137, Issue -, Pages 965-972Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2016.07.205
Keywords
Organic wastes; Sorbent; Contaminant management; Pollutants; Metals
Categories
Funding
- National Program for the CAPES Post-Doctorate Studies (PNPD/CAPES) [404150/2013-6]
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Biochar is a universal sorbent suitable in strategies for removing contaminants from both soil and water. This study evaluated the potential of four biochars each produced from a different feedstock for removing Cd and Ni from water. Chicken manure mixed with sawdust (CM), sugarcane straw (SS), rice husk (RH) and sawdust (SW) were used to produce biochar through slow pyrolysis at two temperatures: 350 and 650 degrees C. The percentage removed and the removal capacity of Cd and Ni from water by biochars at both temperatures used in the pyrolysis followed the order: CM > SS > RH > SW. The removal percentage ranged from 31 to 98% for Cd and 24-72% for Ni, while removal capacity ranged from 0.3 to 12.5 mg g(-1) for Cd and 0.2-10.9 mg g(-1) for Ni. The type of feedstock had greater influence on the performance of biochars for removing metals than the pyrolysis temperature. (C) 2016 Elsevier Ltd. All rights reserved.
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