Field investigation of the quality of fresh and aged leachates from selected landfills receiving e-waste in an arid climate

Kiddee, Peeranart; Naidu, Ravi; Wong, Ming Hung; Hearn, Laurence; Müller, Jochen F.

doi:10.1016/j.wasman.2014.06.018

Cited by 50 publications

(16 citation statements)

References 39 publications

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“…Releases into groundwater are, thus, particularly a problem in landfills that were not originally designed to prevent migration of the leachate (unlined landfills). Elevated concentrations of metals and metalloids have been measured in samples of groundwater collected in locations close to landfills receiving electronic waste [49]. Furthermore, release of these highly toxic compounds into the landfill, could impact the microbial communities degrading organic waste and, thereby, the waste stabilization process.…”

Section: Discussionmentioning

confidence: 99%

Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions

Ramos-Ruiz

Wilkening

Field

et al. 2017

Journal of Hazardous Materials

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A crushed non-encapsulated CdTe thin-film solar cell was subjected to two standardized batch leaching tests (i.e., Toxicity Characteristic Leaching Procedure (TCLP) and California Waste Extraction Test (WET)) and to a continuous-flow column test to assess cadmium (Cd) and tellurium (Te) dissolution under conditions simulating the acidic- and the methanogenic phases of municipal solid waste landfills. Low levels of Cd and Te were solubilized in both batch leaching tests (<8.2% and <3.6% of added Cd and Te, respectively). On the other hand, over the course of 30 days, 73% of the Cd and 21% of the Te were released to the synthetic leachate of a continuous-flow column simulating the acidic landfill phase. The dissolved Cd concentration was 3.24-fold higher than the TCLP limit (1 mg L-1), and 650-fold higher than the maximum contaminant level established by the US-EPA for this metal in drinking water (0.005 mg L-1). In contrast, the release of Cd and Te to the effluent of the continuous-flow column simulating the methanogenic phase of a landfill was negligible. The remarkable difference in the leaching behavior of CdTe in the columns is related to different aqueous pH and redox conditions promoted by the microbial communities in the columns, and is in agreement with thermodynamic predictions.

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Section: Discussionmentioning

confidence: 99%

Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions

Ramos-Ruiz

Wilkening

Field

et al. 2017

Journal of Hazardous Materials

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“…Previous waste management practices, particularly disposal of electronic waste into older municipal landfills, has led to leaching of PBDEs, including BDE-209, into the Australian environment (74). This poses a complex management issue.…”

Section: Discussion: Estimate Of Goods Likely To Contain Bde-209 In Amentioning

confidence: 99%

BDE-209 in the Australian Environment: Desktop review

English

Toms

Gallen

et al. 2016

Journal of Hazardous Materials

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The commercial polybrominated diphenyl ether (PBDE) flame retardant mixture c-decaBDE is now being considered for listing on the Stockholm Convention on Persistent Organic Pollutants. The aim of our study was to review the literature regarding the use and detection of BDE-209, a major component of c-decaBDE, in consumer products and provide a best estimate of goods that are likely to contain BDE-209 in Australia. This review is part of a larger study, which will include quantitative testing of items to assess for BDE-209. The findings of this desktop review will be used to determine which items should be prioritized for quantitative testing. We identified that electronics, particularly televisions, computers, small household appliances and power boards, were the items that were most likely to contain BDE-209 in Australia. Further testing of these items should include items of various ages. Several other items were identified as high priority for future testing, including transport vehicles, building materials and textiles in non-domestic settings. The findings from this study will aid in the development of appropriate policies, should listing of c-decaBDE on the Stockholm Convention and Australia's ratification of that listing proceed.

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“…To our knowledge there is only one published study of any of the target PBTs in Australian leachate [80], and only a limited number of Australian studies conducted on organic contaminants in biosolids [25,31,[81][82][83]. Extensive international comparisons of PBTs in biosolids have been made previously, with levels ranging greatly worldwide [31,84,85].…”

Section: Comparison To International Levels and Guidelinesmentioning

confidence: 99%

Occurrence and distribution of brominated flame retardants and perfluoroalkyl substances in Australian landfill leachate and biosolids

Gallen

Drage

Kaserzon

et al. 2016

Journal of Hazardous Materials

110

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Field investigation of the quality of fresh and aged leachates from selected landfills receiving e-waste in an arid climate

Cited by 50 publications

References 39 publications

Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions

Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions

BDE-209 in the Australian Environment: Desktop review

Occurrence and distribution of brominated flame retardants and perfluoroalkyl substances in Australian landfill leachate and biosolids

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