Browsing by Author "Chaitanya, V."

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Experimental study for the assessment of suitability for vegetation growth on coal mine overburden
(2015) Ram Chandar, K.; Chaitanya, V.; Raghunandan, M.E.
Owing to increased production and productivity of opencast coal mines, large amount of waste rock is removed and stacked in the form of waste dumps. Positive utilisation of such waste rock not only saves considerable dumping land but also reduces problem of maintaining stable and environmentally friendly dumps. One of the major utilisation of waste rock is to use it for vegetation. Therefore a systematic investigation to study the fertile characteristics of overburden waste rock for vegetation was conducted. Waste rock samples collected from an opencast coal mine dump in South India were used in the laboratory experiments. Observations showed the suitability of mine wastes for vegetation when supplemented with additives/nutrients - bottom ash, fly ash, lime stone powder and secondary sludge from sewage treatment plants (STPs) were considered for this purpose as additives. Results suggest that the mine-overburden supplemented with sewage waste (atleast 25% by volume) to be suitable for effective vegetation. Copyright 2015 Inderscience Enterprises Ltd.
Experimental study for the assessment of suitability for vegetation growth on coal mine overburden
(Inderscience Enterprises Ltd., 2015) Ram Chandar, K.R.; Chaitanya, V.; Raghunandan, M.E.
Owing to increased production and productivity of opencast coal mines, large amount of waste rock is removed and stacked in the form of waste dumps. Positive utilisation of such waste rock not only saves considerable dumping land but also reduces problem of maintaining stable and environmentally friendly dumps. One of the major utilisation of waste rock is to use it for vegetation. Therefore a systematic investigation to study the fertile characteristics of overburden waste rock for vegetation was conducted. Waste rock samples collected from an opencast coal mine dump in South India were used in the laboratory experiments. Observations showed the suitability of mine wastes for vegetation when supplemented with additives/nutrients - bottom ash, fly ash, lime stone powder and secondary sludge from sewage treatment plants (STPs) were considered for this purpose as additives. Results suggest that the mine-overburden supplemented with sewage waste (atleast 25% by volume) to be suitable for effective vegetation. © © 2015 Inderscience Enterprises Ltd.
Utilization of Coal Mine Waste in Vegetation
(CRC Press, 2022) Chaitanya, V.; Ram Chandar, R.C.
The overburden (OB) removed to access the coal deposits is being dumped in the form of OB dumps. Once it reaches the permissible height, the dumps will be vegetated in order to increase the green cover of the area as well as to stabilize the dumps. In this regard, a systematic research study is taken up by adding different additives to coal mine waste, such as fly ash and specific species are planted to assess the growth of different plants. It was found that plants have grown to more height in sewage waste mixed with OB up to 50%. © 2022 Ram Chandar Karra, Gayana B.C and Shubhananda Rao P.