Organic components in leachates from hazardous waste disposal sites

Yasuhara, Akio; Shiraishi, Hiroaki; Nishikawa, Masataka; Yamamoto, Takashi; Nakasugi, Osami; Okumura, Tameo; Kenmotsu, Katashi; Fukui, Hiroshi; Nagase, Makoto; Kawagoshi, Yasunori

doi:10.1177/0734242x9901700304

Cited by 71 publications

(4 citation statements)

References 4 publications

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“…It has also been suggested that not only VOCs but other pollutants such as bisphenol A (BPA) are discharged via leachates in landfill sites under higher temperature conditions. BPA is frequently detected in landfill leachates at very high concentrations (Yasuhara et al 1999, Asakura et al 2004). The higher concentration of BPA in leachate was associated with the co-disposal of raw garbage and plastics (Urase & Miyashita 2003).…”

Section: Concentrations Of Vocs In Leachates At the Target Sitementioning

confidence: 99%

Emission of volatile organic compounds from solid waste disposal sites and importance of heat management

et al. 2008

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The emission of volatile organic compounds (VOCs) from a solid waste disposal site for municipal solid wastes was quantified. The VOCs contained in the landfill gas taken at the site were benzene, toluene, xylenes, ethyl benzenes, and trimethyl benzenes, while the concentrations of chlorinated compounds were very low. The concentration of benzene in the landfill gas samples ranged from below the detection limit to 20 mg m(-3), and the ratio of benzene to toluene ranged from 0.2 to 8. The higher concentrations of VOCs in landfill gas and in leachates were observed with the samples taken at high temperature areas of the target site. Polystyrene plastic waste was identified as one of the sources of VOCs in solid waste disposal sites at a high temperature condition. The appropriate heat management in landfill sites is an important countermeasure to avoid unusually high emission of VOCs because the heat generated by the biodegradation of organic solid wastes may promote the release of VOCs, especially in the case of sites which receive both biodegradable and plastic wastes.

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Section: Concentrations Of Vocs In Leachates At the Target Sitementioning

confidence: 99%

Emission of volatile organic compounds from solid waste disposal sites and importance of heat management

et al. 2008

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“…Despite increases in recycling, 5 million tons of waste plastics were generated by industrial facilities in 2006, and 8% of these (by weight) were directly landfilled (PWMI 2008). Although plastics do not undergo microbial decomposition, various additives such as phthalates, phenols and organic phosphates migrate into the leachate when plastics come into contact with water within IWLs (Yasuhara et al 1997(Yasuhara et al , 1999Yamamoto et al 2001, Sakamoto et al 2005.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen sulfide production by sulfate-reducing bacteria utilizing additives eluted from plastic resins

Tsuchida¹,

Kajihara

Shimidzu

et al. 2010

Waste Manag Res

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In the present study it was demonstrated that organic additives eluted from plastic resins could be utilized as substrates by sulfate-reducing bacteria. Two laboratory-scale experiments, a microcosm experiment and a leaching experiment, were conducted using polyvinyl chloride (PVC) as a model plastic resin. In the former experiment, the conversion of sulfate to sulfide was evident in microcosms that received plasticized PVC as the sole carbon source, but not in those that received PVC homopolymer. Additionally, dissolved organic carbon accumulated only in microcosms that received plasticized PVC, indicating that the dissolved organic carbon originated from additives. In the leaching experiment, phenol and bisphenol A were found in the leached solutions. These results suggest that the disposal of waste plastics in inert waste landfills may result in the production of H(2)S.

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“…Bisphenol A is widely used as a material to produce polycarbonate, epoxy resins, flame retardants, and other products. These plastics are finally disposed of into landfills, and BPA often is detected in landfill leachates at higher concentrations than those in environmental water [9,10]. Therefore, leachates are thought to be significant sources of BPA in aquatic environments.…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of bisphenol a and disappearance of its estrogenic activity by the green alga Chlorella fusca var. vacuolata

Hirooka

Nagase

Uchida

et al. 2005

Enviro Toxic and Chemistry

119

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Bisphenol A (BPA) is known as an endocrine disruptor and often is found in landfill leachates. Removal of BPA by green alga, Chlorella fusca, was characterized, because we previously found that various phenols were well removed by this strain, including BPA. Chlorella fusca was able to remove almost all BPA in the concentration range from 10 to 80 microM for 168 h under continuous illumination at 18 W/m2. At the low light intensity of 2 W/m2, 82% of 40 microM BPA was removed, and only 27% was removed in the dark. Moreover, C. fusca could remove 90% of 40 microM BPA under the 8:16-h light:dark condition, which was almost as high as that under the continuous-light condition. The amount of BPA contained in the cells was less than the amount of BPA removed from the medium. Monohydroxybisphenol A was detected as an intermediate of BPA degradation. Moreover, estrogenic activity that originated from BPA in the culture medium also completely disappeared. Based on these results, BPA was finally degraded to compounds having nonestrogenic activity. Therefore, C. fusca can be considered a useful organism to remove BPA from landfill leachates.

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Organic components in leachates from hazardous waste disposal sites

Cited by 71 publications

References 4 publications

Emission of volatile organic compounds from solid waste disposal sites and importance of heat management

Emission of volatile organic compounds from solid waste disposal sites and importance of heat management

Hydrogen sulfide production by sulfate-reducing bacteria utilizing additives eluted from plastic resins

Biodegradation of bisphenol a and disappearance of its estrogenic activity by the green alga Chlorella fusca var. vacuolata

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