Study of the Possibility of Biorecultivation of Soils Contaminated with Brown Coal Waste

Akmaral U. Issayeva, Akmaral Alikhan, Kulaisha Tlegenova, Gulzhaina Alpamyssova, Yerzhan Issayev, Assel Ye Tleukeyeva

2024

Data confidence 70 medium

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Abstract

Environmental pollution by industrial waste, including brown coal mining, is one of the environmental problems of many countries.To improve the ecological situation in the region, it is necessary to recultivate soils contaminated with brown coal waste.The goal of the study was to study the possibility of biorecultivation of soils polluted with brown coal waste from the Lenger deposit located in the south of Kazakhstan.It was found that the inorganic part of the brown coal waste is represented by minerals:Lead Aluminium Sulfate Hydroxide Pb 0.5 Al 3 (SO 4 ) 2 (OH) 6 , with quartz content in samples in the range of 61.5-92.9%.The organic part of the waste is 90.0% made up of humic acids and fulvic acids.It has been established that heterotrophic, cellulolytic microflora and micromycetes are represented by the genera Rhodococcus, Bacillus, Pseudomonas, Penicillium; Trichoderma, Dietzia, promising for biorecultivation purposes.The phytocenosis of coal waste dumps is composed of toxicotolerant ruderal plant species of the local flora: Centaurea scabiosa L., Centaurea iberica Trev.