Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(7): 3855-3865
DOI: https://doi.org/10.20546/ijcmas.2018.707.448


Industrial Waste Composts: Toxicity Tests and Decomposition Studies under Laboratory Conditions
K.S. Karthika1, V.R.R. Parama2, B. Hemalatha2, I. Rashmi3 and C.S. Vidya2
1ICAR-National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bangalore- 560 024, India
2Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, GKVK, Bangalore -560 065, India
3ICAR-Indian Institute of Soil and Water Conservation, Research Centre, Kota, Rajasthan, India
*Corresponding author
Abstract:

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.


Keywords: Enzyme Industrial wastes, Urban solid waste, compost, Phytotoxicity, C decomposition
Download this article as Download

How to cite this article:

Karthika, K.S., V.R.R. Parama, B. Hemalatha, I. Rashmi 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. doi: https://doi.org/10.20546/ijcmas.2018.707.448