Phytoremediation Studies on Coal Mine Waste and Coal Fly Ash by Leucaena Leucocephala
| Autor: | Satpal Singh Bisht, Koustava Kumar Panda, Rojita Mishra, Ajit Routray, Amrita Kumari Panda, B. Praveen |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Leucaena leucocephala
biology business.industry fungi technology industry and agriculture Coal mining food and beverages Biomass Thermal power station respiratory system biology.organism_classification Pulp and paper industry complex mixtures Phytoremediation Land reclamation Fly ash Environmental science Coal business |
| Zdroj: | International Journal of Bioscience, Biochemistry and Bioinformatics. :252-255 |
| ISSN: | 2010-3638 |
| DOI: | 10.7763/ijbbb.2011.v1.47 |
| Popis: | P ot culture experiments were conducted by using various % of Soil, Coal Fly Ash and Coal Mine waste as contaminant to study the relative growth characteristics and yield potentials of Leucaena leucocephala .The level of different compositions are Soil (100%), Coal Mine Waste (100%), Coal Fly Ash (100%), Soil + Coal Mine Waste (50:50) %, Soil + Coal Fly Ash (50:50) %.The data on seed germination, growth parameters e.g total length, shoot length, root length, leaf number, total biomass production, chlorophyll, carotenoid and protein was recorded. Index Terms—Pot cultu re experiment, Leucaena leucocephala, Coal fly ash, Coal mine waste I. INTRODUCTI ON Coal wh ich used for thermal power generation is known for its high ash content (40-45 %).Due to low grade of coal and use of inferior model of electrostatic precipitator's higher amount of fly ash evolves. Emission of particulate matters and noxious gases cause environmental hazards because the ash comprises of SiO2, Al2O3 and oxides of iron and other toxic metals. These oxides change the chemical and biochemical composition of the plant grown on fly ash(1). To mitigate pollution due to thermal power plants particularly fly ash, it is essential to select suitable plant species which can easily colonize in fly ash. Fly ash as such is not suitable for plant growth unless it is weathered for some period and organic amendments are added. (2)- (4).One of the most promising use of fly ash is to utilize it for tree plantation purpose which beside land reclamation also helps to lock up the toxic heavy metal present in the fly ash, in the wood biomass for longer periods as compare to crop plants. Present study highlights how Leucaena leucocephala is utilized for removal of pollutants from fly ash. Coal mine spoils vary from neutral to acidic in nature. They are sandy and subjected to severe erosion by wind and rain. In order to check the erosion re-vegetation of mine spoil has become mandatory. Keeping the reclamation and re-vegetation of coal mine spoil and coal fly ash in view a pot culture experiment has been conducted to study the effect of garden soil amended coal fly ash and coal mine spoil with Leucaena leucocephala. |
| Databáze: | OpenAIRE |
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