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- Title
Static and Dynamic Leaching of Chromium(VI) from Chromium-Containing Slag.
- Authors
Li, Hangbin; Wang, Zhenxing; Yang, Zhihui; Chai, Liyuan; Liao, Yingpin
- Abstract
Because the slag can be a major source of soil and groundwater pollution, understanding the release and leaching behavior of hexavalent chromium [Cr(VI)], from chromium-containing slag is critical. We report Cr(VI) behavior after static and dynamic leaching from chromium-containing slag deposited at a ferro-alloy manufacturing plant in Hunan province, China. Bench-scale experiments indicate that the main factors influencing the dissolution release of Cr(VI) include the solid-liquid ratio, soak time, agitation, acidity, particle size, and water dynamic flow. Based on the parameters obtained from the dynamic leaching experiment, a Cr(VI) release and leaching model was developed and applied to the study area. The model can quantitatively predict the extent of Cr(VI) pollution of soil and groundwater under atmospheric precipitation.
- Subjects
HUNAN Sheng (China); SLAG leaching; HEXAVALENT chromium; IRON alloys; FERROALLOY products manufacturing; ACIDITY; HYDRAULICS
- Publication
Environmental Engineering Science, 2012, Vol 29, Issue 6, p426
- ISSN
1092-8758
- Publication type
Article
- DOI
10.1089/ees.2010.0313