Industrial Waste Composts: Toxicity Tests and Decomposition Studies under Laboratory Conditions.
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Title |
Industrial Waste Composts: Toxicity Tests and Decomposition Studies under Laboratory Conditions.
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Creator |
Karthika, K. S., Parama, V.R.R., Hemalatha, B., Rashmi, I. and Vidya, C.S.
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Subject |
Enzyme Industrial wastes, Urban solid waste, compost, Phytotoxicity, C decomposition
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Description |
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Enzyme industrial wastes viz. multiple effect evaporator salts, primary sludge, filter press feed were evaluated for their phytotoxic effects under laboratory conditions to understand their potential to use as a nutrient medium for supporting plant growth. It was found that the industrial waste-water extract recorded lower contents of essential nutrients and the presence of heavy metals viz. Ni and Cd. Germination studies revealed the inhibitory effects of industrial waste-water extracts on percentage and rate of seed germination and length of plumule and radicle. None of the seeds germinated in MEES: water extract and seed germination of tomato as indexed by rate 6.11 in PS: water extract exhibited the inhibitory effect by primary sludge on seeds. The length of radicle (5.79) and plumule (4.94) was relatively lesser in PS: water extract to that of FPF: water extract and control. The incubation study carried out in the laboratory conditions to understand the rate of decomposition of urban solid waste alone and three different industrial waste-composts prepared by combining urban solid waste with enzyme industrial wastes viz. multiple effect evaporator salts, primary sludge, filter press feed revealed that the carbon-di-oxide evolved was higher in incubating urban solid waste-multiple effect evaporator salts exhibiting a higher rate of decomposition due to the presence of more easily degradable compounds. This was 6.10 mg CO2 100 gc-1 day-1 on the 50th day of incubation in urban solid waste-multiple effect evaporator salts and 2.60 mg CO2 100 gc-1 day-1 in incubating urban solid waste alone at the 50th day of incubation. The cumulative CO2 evolved ranged from 32.27 mg CO2 100 gc-1in urban solid waste alone to 89.48 mg CO2 100 gc-1 in urban solid waste+ multiple effect evaporator salts on the 50th day of incubation. Not Available |
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Date |
2020-05-22T07:24:18Z
2020-05-22T07:24:18Z 2018-07-15 |
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Type |
Research Paper
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Identifier |
Karthika, K. S., Parama, V.R.R., Hemalatha, B., Rashmi, I. and Vidya, C.S. 2018. Industrial Waste Composts: Toxicity Tests and Decomposition Studies under Laboratory Conditions.Int.J.Curr.Microbiol.App.Sci.7(7):3855-3865
https://doi.org/10.20546/ijcmas.2018.707.448 http://krishi.icar.gov.in/jspui/handle/123456789/36129 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Excellent Publishers
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