Sorption of organic contaminants by soils is a determinant controlling their transport and fate in the environment. The influence of ionic strength on nitroaromatic compound sorption by K+- and Ca2+ -saturated smectite was examined. Sorption of 1,3-dinitrobenzene by K-smectite increased as KCl ionic strength increased from 0.01 to 0.30 M. In contrast, sorption by Ca-smectite at CaCl2 ionic stre...

We introduce a nonbonded three-body harmonic potential energy term for Mg-O-H interactions for improved edge surface stability in molecular simulations. The new potential term is compatible with the Clayff force field and is applied here to brucite, a layered magnesium hydroxide mineral. Comparisons of normal mode frequencies from classical and density functional theory calculations are used to...

The possibility of using expanded clay sand in surface and underground mine construction is considered the article. As a result research, material properties were studied, its uses determined. research has experimentally proven that can be used as base for concretes mortars, which are suitable by their properties. In course samples various compositions made; structure shown. Samples tested to d...

Potted plants have been reported to uptake VOCs and help “cleaning” the air. This paper presents results of a laboratory study in which two species (peace lily Boston fern) three kinds substrates (expanded clay, soil, activated carbon) were tested monitored on their capacity deplete formaldehyde CO2 glass chamber. Formaldehyde selected as indicators evaluate biofiltration efficacy 28 different ...

The paper analyzes the results of experimental studies creep light concrete and influence various factors on it. A method for determining boundary linear expanded clay has been developed. Experimental have carried out to determine creep. data kinetics change in measure over time under axial compression at different levels long–term load (0.2 - 0.7)R b are obtained. limiting values relative defo...