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Yoshiro Ono Hidehito Uemura Yoshinori Kanjo Osami Kawara Toshiki Ayano 《Journal of Material Cycles and Waste Management》2000,2(1):38-42
Construction waste such as road pavement and concrete is estimated to constitute about 50% of the total industrial waste in
Japan, and the recycling of such material has recently become a prominent topic among construction engineers. It has also
been suggested that various types of industrial waste be utilized as components of construction materials. This paper investigates
the environmental safety of certain materials in terms of the elutions and genotoxicities of these substances. The substances
extracted from some materials, such as emulsifier, ash, and sediment, were found to have genotoxic characteristics. The dose-related
responses of the various materials and their genotoxic strengths are shown.
Received: June 16, 1998 / Accepted: September 7, 1999 相似文献
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Jun Yoshinaga Akiko Kida Osami Nakasugi 《Journal of Material Cycles and Waste Management》2001,3(1):60-65
Boron has been found in high concentrations in leachates from landfills located throughout Japan. However, the source(s) of
boron in the leachates, i.e., what kind of waste(s) releases this element into the leachate, has not been clarified. In this
study, boron concentrations in leachates from 48 industrial landfills were evaluated, in relation to the categories of waste
constituting the landfill in each of the sites, by multiple regression analysis. The multiple regression analyses were carried
out using the log-transformed boron concentration as a dependent variable and each of 19 categories of industrial waste (according
to the Japanese Waste Disposal and Public Cleansing Law) as independent variables. Stepwise variable selection was employed
in the analyses. Although the significant variable(s) selected varied according to the data sets analyzed (viz., data sets from least controlled landfill sites, from controlled landfill sites, and from both), cinders, slag, and waste
plastics emerged as wastes with positive partial regression coefficients that significantly explained the boron levels in
the leachates. These results indicated that cinders, slag, and waste plastics were the sources of high concentrations of boron
in the leachates. The results of the present exploratory statistical analyses warrant a systematic survey of the boron contents
of, and leachability from, cinders, slag, and waste plastics.
Received: January 17, 2000 / Accepted: July 24, 2000 相似文献
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Bisphenol A in hazardous waste landfill leachates 总被引:24,自引:0,他引:24
The levels of bisphenol A in hazardous waste landfill leachates collected in Japan in 1996 were determined by gas chromatograph/mass spectrometer (GC/MS). Bisphenol A was found in seven of 10 sites investigated. All the hazardous waste landfills with leachates contaminated by bisphenol A were controlled. The concentrations of bisphenol A ranged from 1.3 to 17,200 microg/l with a median concentration of 269 microg/l. The source of bisphenol A in landfill leachates may be the waste plastics in waste landfill. The concentrations of bisphenol A in some samples exceeded the EC50 or LC50 levels for aquatic biota. Landfill leachates may be a significant source of bisphenol A found in the environment. 相似文献
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