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Abstract

Environmental Analysis & Ecology Studies

Cassava Mill Effluents Recycling through Bioenergy Production: A Review

  • Open or CloseSylvester CI*

    Department of Biological Sciences, Nigeria

    *Corresponding author:Sylvester CI, Department of Biological Sciences, Nigeria

Submission: June 5, 2018; Published: May 09, 2019

DOI: 10.31031/EAES.2019.05.000618

ISSN: 2578-0336
Volume5 Issue4

Abstract

The processing of cassava tuber into finished products such as gari generates large wastes water. The effluents are known to contain cyanide and acidic pH in addition to other chemical characteristics such as heavy metals, chemical oxygen demand among others. The effluents have toxicological impacts on the receiving ecosystem (Soil and Surface Water) as well as some of its associated fauna and flora. During degradation processes by the indigenous microbes in the soil the effluents emits odour that are offensive to human. This study reviews recycling options of cassava mill effluents through bioenergy production. The study found that cassava mill effluents have demonstrated positive potentials for biogas, biohydrogen, bioethanol, bioelectricity using varying technologies. During bioenergy production, the characteristics of the raw effluents is improved upon in some of the parameters such as chemical oxygen demand, total solid, pH etc probably due to the activities of some microorganisms. As such there is the need for research to focus on other possible utilization of the sludge generated such as bio-fertilizer production as an option for reuse.

Keywords: Bioenergy; Biotechnology; Cassava wastewater; Environmental contamination; Reuse; Toxicology

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