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Proceedings of

2nd International Conference on Advances In Civil, Structural and Environmental Engineering ACSEE 2014

"STABILIZATION OF INTEGRATED SPONGE IRON PLANT WASTE DUMP THROUGH ECOLOGICAL RESTORATION APPROACH- A FIELD STUDY"

D. MAITI M. L. SAHU P. S. RANA S. K. MAITI
DOI
10.15224/978-1-63248-030-9-05
Pages
21 - 25
Authors
4
ISBN
978-1-63248-030-9

Abstract: “The dump material consists of fly ash- slag- dolochar, accretion, drain dust which is highly alkaline, very loose and powdery, causing massive pollution to the surrounding. The run-off water was totally black, nearby vegetation was fully dust coated and always there was cloud of dust moving along the wind direction. The dump height was 35-40 m (in some places even 60 m), with steep slope (>70-80o), no space was available for regrading/terracing so that dump slope could be reduced. The total area of waste dump was 14 ha, which has to be ecologically restored. During technical restoration, 75-100 cm thick topsoil was spread and blanked with high tensile strength coir-mat. Once slope was blanketed with topsoil and coir-mat, grass-legume seed mixture was sown. Seed mixture was consist of both annual and perennial fast growing legumes, grasses and high biomass yielding annual shrubs. About 3o slope was given in the top of the dump to collect run-off, and developed community park and fruit o”

Keywords: Topsoil; coir mat; grass legume seeds; cost of ecorestoration.

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