African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007
  • Published Articles: 1037

Full Length Research Paper

Optimization of oxygen consumption and reduction of organic matter from waste during the fermentation phase: Case of the composting platform in Lomé, Togo

Edem Komi Koledzi
  • Edem Komi Koledzi
  • Laboratory of Waste Management, Treatment and Recovery (GTVD), Faculty of Sciences, University of Lomé, P. O. Box 1515 Lomé-Togo.
  • Google Scholar
Kwamivi Nyonuwosro Segbeaya
  • Kwamivi Nyonuwosro Segbeaya
  • Laboratory of Waste Management, Treatment and Recovery (GTVD), Faculty of Sciences, University of Lomé, P. O. Box 1515 Lomé-Togo.
  • Google Scholar
Nitale M’Balikine Krou
  • Nitale M’Balikine Krou
  • Laboratory of Sanitation, Water Science and Environment (LASEE), Faculty of Science and Technology, University of Kara, P. O. Box 404 Kara, Togo.
  • Google Scholar


  •  Received: 02 December 2020
  •  Accepted: 09 June 2021
  •  Published: 30 June 2021

Abstract

In the context of carbon financing it is required that the rate oxygen inside the windrows exceeds 8% to avoid anaerobic decomposition. Thus, the objective of this study is to optimize oxygen consumption and  reduce organic matter in the waste during the fermentation phase. Windrow turning is monitored, which includes monitoring of temperature, pH, organic matter, humidity and certain metals.Temperature monitoring showed a gradual decrease until stabilization at room temperature, indicating the maturity of the compost. With a slight increase in all swaths, the pH remained alkaline. The humidity in the windrows promoted good aerobic degradation of the composted waste. The organic matter in these windrows has decreased to values ??that agree with standards. The present study has demonstrated the importance and influence of the oxygen content and the production of carbon dioxide on the mineralization of organic matter, especially during the fermentation phase.

 

Key words: Flipping, compost, oxygen and carbon dioxide levels.