Hydraulic conductivity was evaluated for eight commercially available geosynthetic clay liners (GCLs) permeated with leachate characteristic of low-level radioactive waste (LLW) disposal facilities operated by the U.S. Department of Energy (DOE). Two of the GCLs (CS and GS) contained conventional sodium bentonite (Na-B). The others contained a bentonite–polymer mixture (CPL, CPH, GPL1, GPL2, an...

Methods for preparing bentonite-gamma globulin complexes and for determining their attachment to cells in tissue culture were investigated by use of human immunoglobulin G (IgG) labeled with 125I. For virus-inhibition studies, bentonite-IgG complexes were prepared by use of human IgG with high specific neutralizing activity against coxsackievirus A21. Much of the antibody in the complex remaine...

The study of the creep properties soils is great importance for management future settlements and safe use buildings. However, starting from micro level an effective way to explore mechanism soft soil. In this paper, influence mineral composition content on structure soil was analyzed at microscopic energy scale method proposed. Then, used analyze discuss results direct shear test. discussion s...

Removal of cesium from synthetic aqueous solution through adsorption on bentonite, under batch equilibrium experimental condition at different values of pH and four temperatures (303, 313, 323, 333 K) was investigated. For this propose the suitability of the Freundlich adsorption model for equilibrium data were investigated. The parameters in the adopted adsorption isotherm models were determin...

Cement bentonite grouting is used to seal and stabilize soil or rock formations. This involves mixing cement, bentonite, water create a slurry that pumped into the ground under pressure. The fills voids fractures in rock, creating solid mass can support structures prevent from seeping through. Bentonite type of clay swells when it meets water, making an effective sealing material. added mixture...

A pot culture study was conducted to investigate the impact of applying humic acid functionalized bentonite (HA-B) on uptake heavy metals by spinach. When soil amended with 7.5 g kg-1 intercalated bentonite, there a significant improvement in plant growth. Specifically, growth increased 180.7%, 212%, and 231% during first, second, third cuttings, respectively. Additionally, concentration spinac...

The diet of earthworms includes soil organic matter, soil microbes and other microfauna, but the relative contribution of these dietary components to earthworm nutrition is not well known. Analysis of fatty acid (FA) profiles can reveal trophic relationships in soil food webs, leading to a better understanding of the energy and nutrient flows from microbiota to earthworms. The objective of this...

Introduction. T HE affinity between certain organic compounds and clays has been known for many years. Lloyd 1 reported the adsorptive capacity of fuller's earth for alkaloids in 1916 without theorizing extensively about the mechanism. Smith 2 reacted organic bases and their salts with bentonite and presented evidence that the reaction was one of baseexchange or metathesis, while tIauser a has ...

with the growing population and density in metropolitan areas, higher tendency to live in high-rise buildings, and increasing demand for parking lots, it seems necessary to excavate soil to construct underground spaces. during excavation work, as the height of the wall increases, special care should be taken to the wall stabilization to avoid any consequent damage including extensive property d...