Using Rice Bran Hydrogel Beads to Remove Dye from Aqueous Solutions

Appropriately disposing of and reusing waste is a major step in promoting environmentally sustainable development. Following the rise environmental awareness, agricultural has been applied as reusable organic resource cost-efficient material for preparing hydrogel adsorbents. The present study combined rice bran with sodium alginate chitosan to prepare two new types beads. beads were then modified using simple methods, their characteristics analyzed Fourier transform infrared spectroscope, scanning electron microscope, thermogravimetric analysis. Specifically, effects pH, adsorbent dosage, adsorption time, temperature on performance dyes various properties examined. results revealed that optimal conditions bran/alginate adsorb crystal violet pH 5, dosage 30 mg, at °C, 6 h adsorption; furthermore, kinetic isothermal data found be consistent pseudo-second-order model Freundlich isotherm model, respectively. bran/chitosan reactive blue 4 3, 40 50 7 adsorption, pseudo-first-order Langmuir This natural polymers friendly adsorbents, which satisfy today’s protection trends economic values because low impact favorable adsorptive regenerative properties. They can prepared without high-temperature high-pressure processing, recycled through separation water bodies filter thus substantially reducing energy monetary costs.