The arsenic speciation transformation in artificially arsenic-contaminated fluvo-aquic soil (Beijing, China)
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چکیده
منابع مشابه
Arsenic and chromium speciation in an urban contaminated soil.
The distribution and speciation of As and Cr in a contaminated soil were studied by synchrotron-based X-ray microfluorescence (μ-XRF), microfocused X-ray absorption spectroscopy (μ-XAS), and bulk extended X-ray absorption fine structure spectroscopy (EXAFS). The soil was taken from a park in Wilmington, DE, which had been an important center for the leather tanning industry along the Atlantic s...
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This study examined the effects of heavy metals and plant arsenic uptake on soil arsenic distribution. Chemical fractionation of an arsenic-contaminated soil spiked with 50 or 200mg kg(-1) Ni, Zn, Cd or Pb was performed before and after growing the arsenic hyperaccumulator Pteris vittata L for 8weeks using NH(4)Cl (water-soluble plus exchangeable, WE-As), NH(4)F (Al-As), NaOH (Fe-As), and H(2)S...
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Fuhrmann, M.; Colombo, P. Radioact. Waste Manage. Nucl. Fuel Cycle 1989, 33, 365-380. Conjeaud, M. L. In Performance of Concrete in the Marine Environment; ACI Publication SP65; American Concrete Institute: Detroit, MI, 1980; pp 39-61. Cullity, B. D. Elements of X-Ray Diffraction; AddisonWesley Publishing Co.: Reading, MA, 1978. (12) Mehta, P. K. Concrete: Structure, Properties, and Materials; ...
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A combination of biological and chemical methods was applied in the present study to evaluate the removal of arsenic (As) from contaminated soil. The treatment involved As-oxidizing microbes aimed of transforming the more toxic As (III) to less toxic As (V) in the soil. FeCl3 was added at three different concentrations (1, 2, and 3%) to stabilize the As (V). Leaching of the treated soil was inv...
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A series of arsenic remediation tests were conducted using a washing method with biodegradable organic acids, including oxalic, citric and ascorbic acids. Approximately 80% of the arsenic in one sample was removed under the effect of the ascorbic and oxalic acid combination, which was roughly twice higher than the effectiveness of the ascorbic and citric acid combination under the same conditio...
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ژورنال
عنوان ژورنال: Plant, Soil and Environment
سال: 2011
ISSN: 1214-1178,1805-9368
DOI: 10.17221/198/2010-pse