Volume 20, Issue 53, January - June, 2023

Wastewater management for irrigated farming: Composition, morphology and production level variation in amaranthus sp. irrigated with peroxideaeration treatment recycled cassava processing effluent

Olayinka Akinola Omotosho^1♦, Jimmy Akinfemi Osunbitan², Gbolabo Abidemi Ogunwande², Toyese Friday Oyewusi³

¹Land and Water Resources Management Programme, Institute of Agricultural Research and Training, Obafemi Awolowo University, Moor Plantation, Ibadan, Oyo State, Nigeria
²Department of Agricultural and Environmental Engineering, Faculty of Technology, Obafemi Awolowo University, Osun State, Nigeria
³Department of Agricultural Engineering, Adeleke University, Ede, Nigeria

^♦Corresponding author
Land and Water Resources Management Programme, Institute of Agricultural Research and Training, Obafemi Awolowo University, Moor Plantation, Ibadan, Oyo State Nigeria

ABSTRACT

Environmental pollution, erratic rainfall pattern and increasing population are some of the contributing factors to the currently experienced global food stress. To this end a pilot scale peroxide-oxidation treatment system was setup for recycling effluent from cassava processing industry with the aim of cultivating Amaranthus plants. Results revealed that the quality of derived effluent largely met NESREA standards for discharge to water bodies with parameter values such as pH (7.1), CN (0.03 mg/l) and SO4 (5.20 mg/l) as well as irrigation water quality standard as specified by FAO with parameter values such as Sodium (34.4 mg/l), Magnesium (33.2 mg/l) and Calcium (75.2 mg/l). Comparison of plant morphological development (foliage, stem girth, plant height and average leaf area) revealed that for Amaranthus at treatment levels of 25, 50 and 75% were better than the control treatment. Analysis of mineral content in the vegetables revealed that Amaranthus bioaccumulated iron, potassium and nitrogen at all the treatment levels (25, 50, 57 and 100%) considered in comparison to the control. This study has therefore revealed that effluent from the peroxide-oxidation treatment of cassava effluent can be safely used in irrigation of Amaranthus at a concentration not greater than 75%.

Keywords: Effluent, Amaranthus, bioaccumulation, water reuse, peroxide

Indian Journal of Engineering, 2023, 20(53), e2ije1002

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DOI: https://doi.org/10.54905/disssi/v20i53/e2ije1002

Published: 27 February 2023