Exploring Gliricidia sepium as Low-Cost Biosorbent for Efficient Dye Removal

IJEP 46(3): 205-214 : Vol. 46 Issue. 3 (March 2026)

Poonam Mandale1,2, Kavita Kulkarni1*, Kishor Jadhav2 and Anand Kulkarni1

1. Bharati Vidyapeeth (Deemed to be University) College of Engineering, Department of Chemical Engineering, Pune – 411 030, Maharashtra, India
2. D.Y. Patil College of Engineering and Technology, Department of Chemical Engineering, Kolhapur – 416 006, Maharashtra, India

Abstract

The textile industry is a major source of pollution in both water and soil due to the large volumes of wastewater generated during processing. Dyes and organic compounds have harmful effects on the environment and human health. These substances can cause long-term damage as they seep into the environment. To reduce dye pollution, research was conducted on using Gliricidia sepium as a biosorbent for dye removal. Rhodamine B (RB) and Malachite Green (MG) dyes were used in the study. Batch experiments tested how effectively Gliricidia sepium acted as a biosorbent to remove these dyes. The results confirmed successful removal: 76% of Rhodamine B (RB) and 84% of Malachite Green (MG) were eliminated. The Langmuir isotherm model best described the process. The Langmuir capacities were 27.70 mg/g for Rhodamine B (RB) and 41.66 mg/g for Malachite Green (MG). The study demonstrated the biosorbent’s ability to reduce hazardous dyes from environment without causing disturbances.

Keywords

Gliricidia sepium, Rhodamine B dye, Malachite Green dye, Biosorbent

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