Lignocellulosic Biomass Waste Adsorbent for Removal of Dye from Aqueous Solution

Basma G. Alhogbi

Journal of Sustainable Development, 2023, vol. 15, issue 4, 63

Abstract: Date Palm Tree Fiber (DPTF) is a renewable raw material which is considered a biomass waste excess of date farms and manufactures. This biomass was successfully utilized as solid phase extractor (SPE) for removal of methylene Blue dye (MB) from polluted water. The chemical composition and the surface morphology of the SPE was critically assigned based on FT-IR, and FE-SEM. In batch separation mode, the impact of several analytical parameters e.g. contact time, weight of biomass, solution pH and initial concentration on the MB dye uptake from aqueous media by DPTF solid adsorbent was critically studied. At the optimized parameters, good adsorption capacity (qe,exp =9.153 mg/g) at pH 6 was achieved. The data of MB uptake were subjected to Langmuir and Freundlich to assign the most probable retention mechanism. The adsorption fitted well with Langmuir isotherm models qm 648 mg/g. The data were fitted well with pseudo- second order model as supported from the qe,cal (9.225 mg/g) value. Excellent extraction (99%) of MB dye was achieved from the environmental water samples. The DPTF solid sorbent is a non-toxic and renewable raw material of lignocellulosic biomass has a potential to uptake MB dye from wastewater.

Date: 2023
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