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Evaluation of the Maturity of the Compost Produced at the Compost Production Site of the NGO ENPRO in Lomé (Togo) Using the UV-Visible Spectroscopy
Science Journal of Chemistry
Volume 8, Issue 4, August 2020, Pages: 95-101
Received: Aug. 18, 2020; Accepted: Aug. 31, 2020; Published: Sep. 17, 2020
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Authors
Joël Mawuli Tamakloe, Laboratory of Management, Treatment and valuation of Waste (GTVD), Department of Chemistry, University of Lomé, Lomé, Togo
Edem Komi Koledzi, Laboratory of Management, Treatment and valuation of Waste (GTVD), Department of Chemistry, University of Lomé, Lomé, Togo
Sassou Megnassan, Sassou Megnassan
Etsè Aziable, Laboratory of Management, Treatment and valuation of Waste (GTVD), Department of Chemistry, University of Lomé, Lomé, Togo
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Abstract
Composting is a method of recovery of household solid waste. But to be useful to agriculture the compost resulting from this process must be mature. The objective of this study is to evaluate the maturity of three types of composts produced on the garbage composting unit of the NGO ENPRO in Lomé. Three types of compost (garbage, fruit waste, animal litter) were made in windrows for at least 3 months. The maturity of the composts was determined according to the basic chemical analysis, by UV-Visible spectroscopy. UV-visible spectroscopy performed on the three types of compost at the end of the 3rd and 4th months of composting shows a decrease in the E4/E6 ratio (465 nm/665 nm), Q2/Q6 (280 nm/664 nm) and Q4/Q6 (472 nm/664 nm) for two types of composts characteristic of increasing humification of organic matter. The data from the various elementary analyzes and particularly from UV-Visible spectroscopy show that composts N°1 and N°2 can be considered ripe after 3 months of composting. But the values of the various elementary analyzes clearly show that compost N° 3 is not yet ripe. UV-Visible spectroscopy is a relatively effective method for evaluating the maturity of compost.
Keywords
Compost, Spectroscopy, UV-Visible, Household Waste, Absorbance
To cite this article
Joël Mawuli Tamakloe, Edem Komi Koledzi, Sassou Megnassan, Etsè Aziable, Evaluation of the Maturity of the Compost Produced at the Compost Production Site of the NGO ENPRO in Lomé (Togo) Using the UV-Visible Spectroscopy, Science Journal of Chemistry. Vol. 8, No. 4, 2020, pp. 95-101. doi: 10.11648/j.sjc.20200804.14
Copyright
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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