Heavy Metals (Fe, Cu, and Cr) Removal from Wastewater by Moringa Oleifera Press Cake

Abstract

Abstract. The consumption of water nowadays is increasing and the wastewater from variety of industry and domestic are increasing as well. If this wastewater is being untreated, it will be wasted and the chemicals inside the water especially heavy metal are harmful to the living organism. There are few conventional method used to treat the wastewater but most of them are costly, hence, natural coagulant is introduced in this study. One of the multipurpose tree Moringa oleifera, (MO) which is environmental friendly and low cost become a choice for removal of heavy metal from wastewater. The Moringa oleifera press cake (MOPC) are able to remove the heavy metal but the removal efficiency for different metals need to be investigated. Therefore, experiment on heavy metal removal by Moringa oleifera press cake was conducted. The wastewater samples and MOPC were collected from Balok River, Kuantan and Mitomasa Sdn. Bhd, Kuala Lumpur respectively. MOPC was immersed in distilled water to remove the oil and different concentration of MOPC solution were made. Jar test were carried out with different concentration of MOPC solution. The initial and final heavy metal (Fe, Cu, and Cr) concentration were measured by Atomic Absorption Spectrometer and the removal percentage was calculated. The MOPC removed 69.99% Fe, 88.86 % Cu and 93.73% Cr at optimum concentration of 10000 ppm, 5000 ppm and 15000 ppm, respectively. The MOPC also reduced 34.94% of COD and 81.6 % of turbidity. However, BOD of wastewater increased from 9.0 ppm to 18.3 ppm. The pH values was not changed with the addition of MOPC. The removal of heavy metal was increased proportionally with MOPC concentration until optimum removal was obtained.

Role of natural coagulants in the removal of heavy metals from different wastewaters: principal mechanisms, applications, challenges, and prospects

“…The results pointed that the removal efficiency of Cr, Pb, and Cd was higher than 98% in the pH range of 2 to 8, indicating that the natural coagulant could work in a wide pH range. In a study, (Ali and Seng (2018) investigated the removal of heavy metals from river water samples using Moringa oleifeara press cake. The results indicated that the removal efficiency of Cr, Cu and Fe was 93.73, 88.86 and 66.99%, respectively.…”

Recent Advancements in Plant-Based Natural Coagulant Application in the Water and Wastewater Coagulation-Flocculation Process: Challenges and Future Perspectives

“…One study of Ali and Tien Seng, (2018) used Moringa Oleifera to remove heavy metals from wastewater. The study investigated Fe, Cu, and Cr at concentrations of 10000 ppm, 5000 ppm, and 15000 ppm, respectively, and found that the plant-based coagulant showed a removal efficiency of 69.99% Fe, 88.86% Cu, and 93.73% Cr.…”

“…Without water, there would be no life (Abujazar et al, 2018;Asrafuzzaman et al, 2011;Desta and Bote, 2021;Nath et al, 2019). In recent times, water consumption has increased due to industrialization and urbanization, as well as population growth (M. Y. D. Alazaiza et al, 2022;Ali and Tien Seng, 2018;Tang et al, 2016;Wang et al, 2021), and accordingly, wastewater from the various industrialization and urbanization activities is also increasing, making access to clean and safe water a critical issue.…”

“…Natural disasters such as earthquakes, storms, and volcanoes introduce large amounts of contaminants into our surface water and groundwater sources, many of which are collectively classified as metal pollutants' by environmental and health protection agencies such as Cu, Zn, As, Pb, Se) (Ahmed et al, 2020;Ali and Tien Seng, 2018;Helen Kalavathy and Miranda, 2010;Ilyinskaya et al, 2021;Ugya AY et al, 2018).…”

Significant Decreased Expressions of CaN, VEGF, SLC39A6 and SFRP1 in MDA-MB-231 Xenograft Breast Tumor Mice Treated with Moringa oleifera Leaves and Seed Residue (MOLSr) Extracts

“…A part remains after oil seed extraction (with minimal production costs), moringa seed residue (MOSr), also known as press cake, seed cake or cake residue, which retains mainly the positively charged protein [19]. MOSr serves as a scavenger for heavy metal removal, as a natural coagulant for wastewater treatment and has also been found to possess antibacterial properties [20,21].…”