Coffee waste utilization as an eco-friendly disposal for pollutants removal from wastewater

نوع المستند : المقالة الأصلية

المؤلفون

Assistant Professor, Physical Chemistry Ain Shams University, Faculty of Education, Program General Chemistry

المستخلص

The discharge of wastewater containing synthetic dyes from industries, particularly the textile
sector, poses significant environmental and health challenges. Waste coffee grounds were
examined in this work as a low-cost, environmentally friendly, and sustainable reducing agent
for the removal of dyes from aqueous solutions. Coffee waste was collected and pretreated
before using. Two methods were used for treating simple treatment and ultrasonic treatment.
The waste coffee samples were characterized using X-ray diffraction (XRD) and Fourier
transform infrared spectroscopy (FTIR). The sample catalytic activities were evaluated by
reduction of Methylene blue (MB) and Remazol red (RR) dyes. According to the results, waste
coffee showed excellent removal efficiency for both MB and RR dyes. The catalytic activity of
waste coffee materials is improved by ultrasonic treatment. Ultrasonic treatment improves
catalytic activity through raising active site dispersion, decreasing particle size, and improving
surface characteristics. The potential of using spent coffee as a sustainable dye remediation
method in wastewater treatment systems is highlighted by this study.

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