نتایج جستجو برای: soil bentonite wall
تعداد نتایج: 350901 فیلتر نتایج به سال:
Experiments were conducted to determine the effect of bentonite and nonnutritive dietary polymers on toxicity and metabolism of T-2 toxin in rats. Male weanling rats were fed diets containing 5% bentonite, anion exchange resin, cation exchange resin or vermiculite-hydrobiotite. Each diet was fed with and without 3 micrograms T-2 toxin/g of feed for 2 wk. Bentonite and anion exchange resin were ...
In this work, the effect of raw and modified bentonite and zeolite with trivalent iron on the stabilization of water-soluble and adsorbed arsenic in a calcareous soil was studied. Raw and modified bentonite and zeolite were added to the soil in different weights in a completely randomized block design with three replications and kept to field capacity soil moisture content of 80% for 8 weeks. T...
Soil–bentonite cut-off walls have been widely used to control landfill pollution but they do not good chemical compatibility with leachate. Attapulgite can be substituted for bentonite in walls. However, little is known about the of attapulgite and This study experimentally investigated wall specimens organic inorganic contaminants found that a sand–attapulgite has contaminants. A CaCl2 solutio...
An experiment was conducted to determine the efficacy of mycotoxin sequestering agents for binding or degrading aflatoxin B1 (AFB1) and deoxynivalenol (DON) by an in vitro method. Ten toxin binder products including 5 bentonite clays (bentonite A, B, C, D, and E), 2 cellulose products (cellulose A and B), a yeast cell wall, an activated charcoal, and a mixture product containing minerals, micro...
The study investigations were focused on assessing the influence of a 35-year-old municipal waste landfill on environmental mercury pollution. The total Hg content was determined in the soil profile, groundwater, and the plants (Solidago virgaurea and Poaceae sp.) in the landfill area. Environmental pollution near the landfill was relatively low. The topsoil layer, groundwater and the leaves of...
The adverse effect of mineral dust on general health level of the population has been widely studied lately. The research interest has been mainly focused on the respiratory function of coal miners and workers exposed to silica and asbestos containing dust [1-3] because a significant increase in COPD independent of smoking has been observed [4-5]. Among the materials considered hazardous for wo...
The geosynthetic clay liner (GCL) overlap plays a key role in maintaining hydraulic performance of the barrier systems, e.g., bottom and cover systems. However, its influences on behavior vertical have been rarely investigated. This paper aims to address this issue using large-scale model test 3-dimensional finite element (FE) modeling. In test, GCL at width 500 mm was tested under constant hea...
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