نتایج جستجو برای: zarand coal washing plant
تعداد نتایج: 436601 فیلتر نتایج به سال:
the impact of installing process control systems can be expected in terms of performance improvements through reduced operating costs. since these installations impose considerable capital expenditure, the profitability of the new systems should be economically justified. controlled variable trend was reconstructed by a combination of simple waves, which provided a means to simulate the effect...
Background and Aim: Chlorophenols are acidic Organic compounds and priority Pollutants. One of the best ways to removal chlorophenols was using different absorbents . In this study, removal efficiency of ortho- chlorophenol as one of the most common organic contaminants in aquatic environments was investigated with absorption method using activated Fly Ash. Materials and methods: In this ex...
The impact of installing process control systems can be expected in terms of performance improvements through reduced operating costs. Since these installations impose considerable capital expenditure, the profitability of the new systems should be economically justified. Controlled variable trend was reconstructed by a combination of simple waves, which provided a means to simulate the ef...
zeolite was synthesized from coal tailings and coal fly ash sampled from zarand coal washing plant, iran, using h2o2–promoted hydrothermal treatment. samples consisted mainly of sio2 and al2o3 which are the main components for the zeolite synthesis. to perform the experiments, appropriate amount of the starting materials were mixed with 240 ml volume of 30% h2o2 at room temperature with continu...
phytoremediation is a technology that uses plants for the remediation of the contaminated soils, sediments, tailings, and groundwaters. in this work, the ability of trifoliumalexanderium for the phytoremediation of the tailings soil in the anjir-tange coal washing plant was investigated. for this purpose, trifolium sp. was cultivated in three soils consisting of the tailings dam, an agricultura...
Background: Chlorophenols are classified as priority toxic pollutants. These acidic organic compounds present a serious potential hazard for human health and aquatic life. Chlorophenols accumulate in water, soil and air due to high stability, and impart an unpleasant taste and odor to drinking water and can exert negative effects on different biological processes. Among the different methods of...
STATEMENT OF PROBLEM The concentration of fluoride in water is usually higher in areas around the coal mines. Zarand region in the south-east of Iran is known for its coal mines. Some studies have shown the high prevalence of fluorosis and some studies reported high levels of fluoride in the region. OBJECTIVES This study aimed to use Geographic Information System (GIS) to assess the relations...
a large volume of tailings has been produced in anjir-tangeh coal washing plant for 22 years of human activity. the coal washing activities have reduced plant diversity near the plant. the environmental impact of coal washing plant on the vegetation around the factory was studied in two seasons. the concentrations of pb, cd and cr, measured in different native plant species, were in normal rang...
A large volume of tailings has been produced in Anjir-tangeh coal washing plant for 22 years of human activity. The coal washing activities have reduced plant diversity near the plant. The environmental impact of coal washing plant on the vegetation around the factory was studied in two seasons. The concentrations of Pb, Cd and Cr, measured in different native plant species, were in normal rang...
this paper tries to determine an optimum condition for the flotation operation of the alborz-sharghi coal washing plant. for this purpose, a series of comprehensive experiments have been conducted on representative samples from feed of the flotation system of the plant. four operational variables such as the collector dosage (fuel oil), the frother dosages (mibc), the pulp density percent and t...
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