title: Experimental investigation of influence of acid rain on leaching and hydraulic characteristics of cement-based solidified/stabilized lead contaminated clay.
abstract: 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.
authors.affiliation: Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China. duyanjun@seu.edu.cn
authors.forename: Yan-Jun
authors.initials: YJ
authors.lastname: Du
authors.forename: Ning-Jun
authors.initials: NJ
authors.lastname: Jiang
authors.forename: Shui-Long
authors.initials: SL
authors.lastname: Shen
authors.forename: Fei
authors.initials: F
authors.lastname: Jin
mesh_terms: D015258:Acid Rain; D000538:Aluminum Silicates / Q000737:chemistry; D002118:Calcium / Q000737:chemistry; D000077215:Clay; D003252:Construction Materials; D052918:Environmental Restoration and Remediation; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000737:chemistry*; D012989:Soil Pollutants / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D015258:Acid Rain; D000538:Aluminum Silicates; D012989:Soil Pollutants; D013431:Sulfates; D014874:Water Pollutants, Chemical; D007854:Lead; D002118:Calcium; D000077215:Clay