文章基本信息

标题：Sustainable reclamation of coal mine spoil dump using microbe assisted phytoremediation technology
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作者：Sanjeev Kumar Singh, Prashant R. Thawale ; Asha Ashok Juwarkar
期刊名称：International Journal of Environmental Science and Toxicology Research
电子版ISSN：2408-7262
出版年度：2014
期号：2980
页码：43-54
出版社：International Invention Journals
摘要：Mine spoil dump generated due to mining activities poses drastic physico-chemical and biological constraints for sustainable vegetation. The various environmental problems that are associated with mining activities are deforestation, removal of fertile topsoil, unstable slopes prone to sliding and erosion, siltation of water bodies due to wash off of mineral overburden dumps, air pollution due to discharge of dust and noise pollution. Microbe Assisted Phytoremediation Technology (MAPT) has been developed for sustainable restoration of coal mine spoil dump. Results indicated that the application of MAPT had improved up to 3-5 folds the physico-chemical and microbiological properties of the coal mine soil dump. The inoculation of biofertlizers significantly increased the different microbial groups such as Azotobacter, Rhizobium and vesicular arbuscular mycorrhizal (VAM) spores, which were practically absent in the coal mine spoil dump. The toxicity of the heavy metals present in the spoil was also reduced to a large extent. Thus, MAPT is an excellent tool for fast restoration of coal mine spoil dump that provides better supportive material for anchorage and growth of the plants leading to the development of sustainable eco-system, carbon sinks, and mitigating the various environmental hazards and improving the environmental health of the nearby contaminated sites. Keywords: Coal mine spoil, Azotobacter, VAM, Environmental restoration.