Production of Phosphate-Rich Biofertiliser Using Vermicompost and Anaerobic Digestor Sludge—A Case Study

C. M. Narayanan

doi:10.4236/aces.2012.22022

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Production of Phosphate-Rich Biofertiliser Using Vermicompost and Anaerobic Digestor Sludge—A Case Study

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DOI: 10.4236/aces.2012.22022 8,754 Downloads 14,786 Views Citations

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C. M. Narayanan

Affiliation(s)

Department of Chemical Engineering, National Institute of Technology, Durgapur, India.

ABSTRACT

This paper presents the technology and cost effectiveness of production of phosphate rich biofertiliser (called PROM) by bioconversion of phosphate rock ore into soluble phosphates (that are directly assimilable by plants) in presence of an organic manure such as Vermicompost or anaerobic digestor sludge (discharged from biogas manufacturing units) and using a microbial culture of Bacillus megatherium var phosphaticum. PROM has been found to be an excellent, less expensive, substitute to synthetic phosphatic fertilisers such as SSP, MAP and DAP. This is based on real—life field trials. It is also possible to integrate the production of PROM, with biogas generation and the layout of such a more profitable, integrated scheme is also presented in this paper.

KEYWORDS

Phosphatic Biofertiliser; Phosphate Solubilising Bacteria; Phosphate Rich Organic Manure; Vermicompost; Anaerobic Digestor Sludge; Biogas

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

M. Narayanan, C. (2012) Production of Phosphate-Rich Biofertiliser Using Vermicompost and Anaerobic Digestor Sludge—A Case Study. Advances in Chemical Engineering and Science, 2, 187-191. doi: 10.4236/aces.2012.22022.

References

[1]	D. M. R. Sekhar and N. C. Aery, “PROM Manual,” Himanshu Publishers, Udaipur, 2005.

[2]	N. C. Aery, N. S. Rathore, M. K. Katewa and M. R. Masih, “PROM—Volume 1,” Himanshu Publishers, Udaipur, 2006.

[3]	C. M. Narayanan, An Integrated Process Layout for Manufacture and Utilisation on of PROM, Proceedings of the All India Seminar on Latest Developments in Phosphatic Fertilisers, New Delhi, November 2006.

[4]	A. S. Rajvaidya, et al., “Precombustion Desulfurisation of Gaseous Fuels,” Proceedings of the All India Seminar on Automotive Fuels, Nagpur, 23-24 August 2002.

[5]	C. M. Narayanan and B. C. Bhattacharya, “Computer Aided Analysis and Optimisation of Biogas Enrichment Process,” Journal of Energy Heat Mass Transfer, Vol. 12, No. 1, 1990, pp. 17-24.