Methylene blue and Congo red dye elimination from synthetic wastewater using seed pod powder: isotherm and kinetic and mechanistic studies.

This research examined the effectiveness of using seed pods (ALB) as an adsorbent to remove dye effluents and clean up wastewater. More specifically, the binding capacity of methylene blue (MB) and Congo red (CR) dyes from aqueous solution using unmodified Albizia lebbeck seed pods (UALB) and citric acid modified Albizia lebbeck seed pods (CALB) were compared. The adsorbents underwent characterization the use of Fourier transform infrared spectroscopy and scanning electron microscopy.