doi: 10.18178/ijesd.2026.17.3.1585
Agricultural Waste Valorization for Industrial Effluent Treatment: Simultaneous Adsorption of Cu(II), Fe(II), and MG Dye Using Coco Peat
Chester Kenneth Andra1
,
Everline Manriquez2 ,
Vikki Marie Quilo2 ,
Keziah Villena2 ,
Tristan Roy Panaligan2,*
- 1College of Arts and Science, Mapúa Malayan Colleges Laguna, Cabuyao City, Laguna, Philippines, 4025
- 2Department of Chemical Engineering, Mapúa Institute of Technology at Laguna, Mapúa Malayan Colleges Laguna, Cabuyao City, Laguna, Philippines, 4025
- Manuscript receivedOctober 24, 2025
- revisedDecember 20, 2025
- acceptedFebruary 19, 2026
- publishedMay 26, 2026
Abstract
This study investigated the removal of the heavymetals copper (Cu²⁺) and iron (Fe²⁺) from simulated textilewastewater using untreated coco peat adsorbent and MalachiteGreen (MG) dye. The effects of contact time and adsorbentdosage on adsorption capacity were examined in batchadsorption studies. Within 30 min, iron and copper reachedtheir optimum adsorption capacities, and 10 g/L was determinedto be the ideal dosage. MG showed a slower adsorption rate,reaching peak uptake at 180 min; however, Tukey HSD post-hocanalysis showed no significant difference in adsorption valuesbetween 30 and 180 min, allowing 30 min to be considered apractical contact time for all three pollutants. Physical forcesand electrostatic interactions between the cationic species insolution and the functional groups on the coco peat wereperceived to be contributing to the observed behavior. Theseresults show that coco peat can be used as an economical, locallysourced material to treat wastewater. By promoting sustainablewater treatment methods, the study helps achieve the UNSustainable Development Goals, especially Goals 6, 12, and 13.
Keywords
- Coco peat adsorbent
- Malachite Green removal
- Heavy metal adsorption
- Simulated textile wastewater
- Batch adsorption experiment
- Sustainable water treatment
How to Cite
Chester Kenneth Andra, Everline Manriquez, Vikki Marie Quilo, Keziah Villena, and Tristan Roy Panaligan, "Agricultural Waste Valorization for Industrial Effluent Treatment: Simultaneous Adsorption of Cu(II), Fe(II), and MG Dye Using Coco Peat," International Journal of Environmental Science and Development, vol. 17, no. 3, pp. 243-249, 2026. https://doi.org/10.18178/ijesd.2026.17.3.1585
Copyright & License
Copyright © 2026 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).