TY - JOUR
T1 - Metals and polybrominated diphenyl ethers leaching from electronic waste in simulated landfills
AU - Kiddee, Peeranart
AU - Naidu, Ravi
AU - WONG, Ming Hung
N1 - Funding Information:
The authors acknowledge financial support from CRC CARE, the Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia and Thai Government fellowship for this study. We thank CERAR's friends and UniSA's staff for their assistant to set landfill simulation columns.
PY - 2013/5/5
Y1 - 2013/5/5
N2 - Landfills established prior to the recognition of potential impacts from the leaching of heavy metals and toxic organic compounds often lack appropriate barriers and pose significant risks of contamination of groundwater. In this study, bioavailable metal(oids) and polybrominated diphenyl ethers (PBDEs) in leachates from landfill columns that contained intact or broken e-waste were studied under conditions that simulate landfills in terms of waste components and methods of disposal of e-wastes, and with realistic rainfall. Fourteen elements and PBDEs were analysed in leachates over a period of 21 months. The results demonstrate that the average concentrations of Al, Ba, Be, Cd, Co, Cr, Cu, Ni, Pb, Sb and V in leachates from the column that contained broken e-waste items were significantly higher than the column without e-waste. BDE-153 was the highest average PBDEs congener in all columns but the average of ∑PBDEs levels in columns that contained intact e-waste were (3.7. ng/l) and were not significantly higher than that in the leachates from the control column.
AB - Landfills established prior to the recognition of potential impacts from the leaching of heavy metals and toxic organic compounds often lack appropriate barriers and pose significant risks of contamination of groundwater. In this study, bioavailable metal(oids) and polybrominated diphenyl ethers (PBDEs) in leachates from landfill columns that contained intact or broken e-waste were studied under conditions that simulate landfills in terms of waste components and methods of disposal of e-wastes, and with realistic rainfall. Fourteen elements and PBDEs were analysed in leachates over a period of 21 months. The results demonstrate that the average concentrations of Al, Ba, Be, Cd, Co, Cr, Cu, Ni, Pb, Sb and V in leachates from the column that contained broken e-waste items were significantly higher than the column without e-waste. BDE-153 was the highest average PBDEs congener in all columns but the average of ∑PBDEs levels in columns that contained intact e-waste were (3.7. ng/l) and were not significantly higher than that in the leachates from the control column.
KW - E-waste
KW - Heavy metals
KW - Leachate
KW - PBDEs
KW - Simulated landfill column
UR - http://www.scopus.com/inward/record.url?scp=84875605860&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2013.03.015
DO - 10.1016/j.jhazmat.2013.03.015
M3 - Journal article
C2 - 23542319
AN - SCOPUS:84875605860
SN - 0304-3894
VL - 252-253
SP - 243
EP - 249
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -
