Abstract
Cassava processing is an industry common to most West African countries as well as in other tropical countries of the world. The processing of cassava is known for its high consumption of water resources. This study therefore investigates the potential for cassava processing water conservation using combined peroxide-oxidation and adsorption recycling processing technology. A Sequential Peroxide-Oxidation and Adsorption treatment process was established by producing cassava peel carbon and activated carbon from waste cassava peels. This was used in the adsorption of pollutant parameters in oxidized cassava processing wastewater. The study further went on to estimate the volume of water that could be conserved in Nigeria through the employment of the Sequential Peroxide-Oxidation and Adsorption treatment process with the aid of a 3-scenario water-based estimation techniques. The research revealed that the estimated volume of water employed in processing cassava through fermentation process is about 1,525 l/ton while that for non-fermentation process is about 960 l/ton. However, an estimated 104,951.36, 100,195.20 and 95,639.04 million litres of water could be conserved considering each of the three cassava process combination scenarios. The study concluded that if cassava industry could make use of the combined peroxide-oxidation and adsorption recycling processing technology described as in the experimental procedure, substantial volume of water resources could be conserved and recycled for other uses such as irrigation, as well as groundwater recharge thereby improving water budget.
 Omotosho, O. A. | Agricultural Engineering and Environmental Unit, Institute of Agricultural Research & Training, Obafemi Awolowo University, Moor Plantation, Ibadan, Nigeria
Highlights
Water is very essential for survival and balance of ecosystem on planet earth
Research showed that even though Africa has 5 trillion m3 of fresh water resources available annually, only 3.8% of this supply has been developed, leaving 300 million African people without access to safe drinking water (Ford, 2008). This situation has been noted to be endemic in most parts of sub-Saharan Africa Sudan, Chad, Niger and Nigeria where majority of their populations are resident in the rural areas and are dependent on seasonal water supply sources such as rivers, streams and ponds
EFFICACY OF THE COMBINED PEROXIDE-OXIDATION AND ADSORPTION TREATMENT PROCESS Before and after the treatment process a comparison of the characteristics of wastewater was made with Federal Environmental Protection Agency (FEPA)/National Environmental Standards and Regulations Enforcement Agency (NESREA) interim standard on discharge for all classes of industry and standards for discharge to watercourse (Table 1)
Summary
Water is very essential for survival and balance of ecosystem on planet earth. The earth’s surface is covered by 70% of water which has its major constituent (97.5%) as water from oceans and seas that are usually regarded as being too salty for consumption and agricultural purposes. Research showed that even though Africa has 5 trillion m3 of fresh water resources available annually, only 3.8% of this supply has been developed, leaving 300 million African people without access to safe drinking water (Ford, 2008). This situation has been noted to be endemic in most parts of sub-Saharan Africa Sudan, Chad, Niger and Nigeria where majority of their populations are resident in the rural areas and are dependent on seasonal water supply sources such as rivers, streams and ponds
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Schedule a callMore From: Open Journal of Environmental Research (ISSN: 2734-2085)
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