Abstract：
:Field experiment was conducted on mine spoil dump on an area of 10 ha, to restore the fertility and productivity of the coal mine spoil dump using integrated biotechnological approach. The approach involves use of effluent treatment plant sludge (ETP sludge), as an organic amendment, biofertilizers and mycorrihzal fungi along with suitable plant species. The results of the study indicated that amendment with effluent treatment plant sludge (ETP sludge), @ 50 ton/ha improved the physico-chemical properties of coal mine spoil. Due to biofertilizer inoculation different microbial groups such as Rhizobium, Azotobacter and VAM spores, which were practically absent in mine spoil improved greatly. Inoculation of biofertilizer and application of ETP sludge helped in reducing the toxicity of heavy metals such as chromium, zinc, copper, iron, manganese lead, nickel and cadmium, which were significantly reduced to 41%, 43%, 37%, 37%, 34%, 39%, 37% and 40%, respectively, due to the increased organic matter content in the ETP sludge and its alkaline pH (8.10-8.28), at which the metals gets immobilized and translocation of metals is arrested. Thus, amendment and biofertilizer application provided better supportive material for anchorage and growth of the plant on coal mine spoil dump.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Juwarkar AA,Jambhulkar HPdoi
10.1016/j.biortech.2007.09.060subject
Has Abstractpub_date
2008-07-01 00:00:00pages
4732-41issue
11eissn
0960-8524issn
1873-2976pii
S0960-8524(07)00806-1journal_volume
99pub_type
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更新日期：2007-12-01 00:00:00
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更新日期：2012-06-01 00:00:00
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