Investigation on surface water treatment using blended moringa oleifera seed and aloe vera plants as natural coagulants

Daniel Kenea; Tibebu Denekew; Rahel Bulti; Bilise Olani; Deme Temesgen; Dawit Sefiw; Dejene Beyene; Million Ebba; Wendesen Mekonin

South African Journal of Chemical Engineering (Jul 2023)

Investigation on surface water treatment using blended moringa oleifera seed and aloe vera plants as natural coagulants

Daniel Kenea,
Tibebu Denekew,
Rahel Bulti,
Bilise Olani,
Deme Temesgen,
Dawit Sefiw,
Dejene Beyene,
Million Ebba,
Wendesen Mekonin

Affiliations

Daniel Kenea: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Tibebu Denekew: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Rahel Bulti: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Bilise Olani: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Deme Temesgen: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Dawit Sefiw: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Dejene Beyene: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Million Ebba: Corresponding author.; Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia
Wendesen Mekonin: Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Po Box – 378, Jimma, Ethiopia

Journal volume & issue: Vol. 45
pp. 294 – 304

Abstract

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The implementation and careful adaptation of treatment plants is currently the most common method for enhancing water quality, especially for large-scale supplies. Nowadays, natural coagulants are used for water treatment due to their environmental friendliness. moringa oleifera and Aloe vera plants are the known natural coagulants used for water. The main goal of this study was to evaluate the removal efficiency of color, turbidity, TDS, COD, and phosphate from surface water by utilizing the blended powder of moringa oleifera seeds (MOS) and Aloe vera plants (AVP). In this study also, pH, stirring speed of the jar test, coagulant dosage, and settling time were also considered as influencing factors on the removal percentages. The blended powder of moringa oleifera (MOS) and Aloe vera plants (AVP) removed color (87.1%), turbidity (88.5%), TDS (92.1%), COD (52.6%), and phosphate (93.9%) at different operating parameters at optimum condition. Furthermore, experimental data were statistically and mathematically analyzed using a central composite design (CCD) from response surface methodology (RSM), revealing that the quadratic model was significant for COD and phosphate removal. The model was also valid for the COD and phosphate removal based on the coefficient of determination, but the quadratic model for the removal of color, turbidity, TDS, and COD was aliased such that it is not appropriate for further investigation.

Published in South African Journal of Chemical Engineering

ISSN: 1026-9185 (Print)
Publisher: Elsevier
Country of publisher: South Africa
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/south-african-journal-of-chemical-engineering/

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