ADSORPTIVE REMOVAL OF BASIC ORANGE 21 DYE BY AN ADSORBENT PREPARED FROM Adenanthera paronina L SEEDS

Abstract

Adsorption using activated carbon is found to be a promising technology for the removal of dyes present in wastewater. The carbon prepared from Adenanthera paronina L seeds (APAC5) through chemical impregnation, microwave carbonization, and finally muffle furnace activation found to have a 948 m2 /g surface area. The microwave heating generates highly branched activated carbon with fewer surface functional groups. The batch mode adsorption of Basic Orange 21 (BO21) dye onto APAC5 is studied. The maximum quantity of BO21 adsorbed is 49.17 mg/g under batch mode study for 50 mg/lof initial BO21 concentration. The nonlinear form of mathematical expression describes the kinetic and isotherm models better under batch mode analysis.

Cationic Surfactant-Modified Tetraselmis sp. for the Removal of Organic Dyes from Aqueous Solution

“…Treating garbage that contains dyes before it is released into the environment is one of the best strategies to lower pollution and the spread of dyes in the environment. Synthetic dyes have been eliminated from industrial effluents using a variety of physical and chemical techniques, including adsorption, flocculation, coagulation, membrane filtration, photocatalytic degradation, and irradiation [13][14][15][16]. Of these several methods, the adsorption method is quite widely used.…”