Changes of dumps coal washing microbiocenosis in the process of accumulation
Journal Title: Problems of Environmental Biotechnology - Year 2016, Vol 1, Issue 2
Abstract
Technogenic waste of coal benefication on the central concentrator "Chervonogradska" regardless of storage time have a complicated mineralogical composition and contain high concentrations of heavy metals, which makes them an ecological hazardous. The bacterial leaching methods of this kind of raw material for its recycling are cost-effective, resource-saving and environmentally friendly. To use them effectively is necessary know the composition and oxidative activity of own microbial associations of technogenic waste. The concentration of the valued components in the waste dumps of different shelf life were determined by standard physico-chemical methods. The influence of its own microbiota on extracting metals from waste dumps has been shown. The structure and quantitative composition of the enrichment cultures of microorganisms that has been isolated from dumps with different shelf life have been described. It has been shown that the qualitative composition not independent of storage time but the number of microorganisms is several times higher in dumps of long storage. It was found that the dominant part of microbiocenoses are acidophilus chemolithotrophic bacteria – mesophilic and moderately thermophilic bacteria of the genera Acidithiobacillus and Sulfobacillus. The maximum leaching effect was achieved by using as an energy source of divalent iron as in mesophilic and in moderately thermophilic conditions. The maximum extraction of valuable metals in the solution were obtained after processing a technogenic waste with a small storage term regardless from used group of microorganisms.
Authors and Affiliations
И. А. Блайда, Т. В. Васильева, В. И. Баранов, Л. И. Слюсаренко, С. Н. Шулякова
Keywords
Related Articles
- EP ID EP31583
- DOI -
- Views 370
- Downloads 0
Changes of dumps coal washing microbiocenosis in the process of accumulation
Technogenic waste of coal benefication on the central concentrator "Chervonogradska" regardless of storage time have a complicated mineralogical composition and contain high concentrations of heavy metals, which makes...
The use of dandelion root (Taraxacum officinalis Wigg.) for sugar-concentrates
The influence of electromagnetic radiation of different frequencies (50 Hz, 100 kHz, 60 GHz) on the efficiency of extraction of sugars from root dandelion (Traxacum officinale Wigg.). The greatest effect of electromagnet...
Biologically active substances of a fungus Phallus impudicus
Phallus impudicus due to biologically active substances is a medicinal fungus used in the treatment of a number of serious diseases. It has been established that for the treatment of diseases suitable as mature fungus. T...
Flavonoids in leaves of chestnut tree Aesculus hippocastanum L. as an indicator of ecological loading
The containing of flavonoids in the leaves of chestnut trees, gathered at the territories of airport Juliany and Hidropark of Kyiv were researched. It was established that the concentration of harmful substances influenc...
Analysis of pathogenic influence cellulases of fungi of Fusarium genus on cellulose materials
The range of temperatures, at which cellulase activity of fungi of Fusarium genus is minimum, is certain. On the basis of finding it is suggested to carry out concrete measures for warning of biodegradation of cellulose...