期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 524, 期 -, 页码 400-415出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2015.03.130
关键词
Oil shale; Semi-coke; Landfill; Groundwater transport; Contaminant; Environmental risk
资金
- Estonian Science Foundation (ESF) [8948]
The main wastes of the Estonian shale oil industry - oil shale semi-coke and ashes - are deposited in landfills. The Kohtla-Jarve oil shale semi-coke and ash landfill, which is likely the largest of its kind in the World, was started in 1938. The environmental risks connected with the landfill were assessed and prioritized. The most significant hazard to human health is emission of harmful landfill gases and the water contamination in the local river network is harmful for aqueous organisms. The spatial expansion of subsurface contamination predicted by the groundwater transport model completed is practically insignificant from the viewpoint of health services. The landfill's leachates must be captured and purified, and the closed part of the landfill should be covered by greenery. The partial landfill capping recently executed is useless. The EU Landfill Directive requirements imposed on the hydraulic resistance of geological barriers cannot prevent the leakage of contaminants from a landfill. (C) 2015 Elsevier B.V. All rights reserved.
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