Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 225, Issue -, Pages 195-201Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2012.04.072
Keywords
Acid rain; Hydraulic conductivity; Leaching; Solidification/stabilization
Categories
Funding
- National Natural Science Foundation of China [50878052, 40972173]
- Jiangsu Province Science and Technology Support Program [BK2010060]
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Remediation of contaminated lands in China urban areas is of great concern. Degradation of construction facilities caused by acid rain is a serious environmental pollution issue in China. This paper presents an investigation of the effects of acid rain on leaching and hydraulic properties of cement-based solidified/stabilized lead contaminated soil. Laboratory tests including infiltration test and soaking test are conducted. It is found that the soil hydraulic conductivity decreases with increase in the pore volume of flow of permeant liquids (acid rain and distilled water). The decreasing rate in the case of the acid rain is lower than that in the case of the distilled water. The soaking test results show that pH and the presence of sulfate ions of acid rain have considerable influence on the leached concentrations and leaching rate of calcium. (C) 2012 Elsevier B.V. All rights reserved.
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