Inderscience Publishers

Vermicomposting of flyash: a potential hazardous waste converted into nutritive compost by earthworm (Eudrilus eugeniae)

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Vermicomposting of fly-ash(FA) mixed with different proportions of Horse dung (HD) T
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– 100% HD alone, T
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– 10% FA + 90% HD, T
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– 20% FA + 80% HD, T
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– 30% FA + 70% HD, T
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– 40% FA + 60% HD and T
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– 50% FA + 50% HD, using Eudrilus eugeniae was done to evaluate the level of heavy metals (Cr,Cd,Pb and Ni) in the vermicasts and tissue and worm biomass. The better worm biomass and maximum reduction in vermicasts and accumulation of heavy metals in the tissues. Hence E. eugeniae is an ideal species in reducing heavy metals during vermicomposting of flyash.

Keywords: fly ash, hazardous waste, genotoxic waste, earthworms, bioaccumulation, toxic chemicals, vermicompost, nutritive biofertilisers, vermicomposting, earthworms, horse dung, Eudrilus eugeniae, heavy metals, worm biomass

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