Abstract
The present investigation deals with the removal of Congo Red (CR) from aqueous solution by using Indian Jujuba Seed (IJS) as low-cost biosorbent. The effect of pH and size experimental parameters has been investigated using a Batch adsorption technique. Adsorption data were modeled using Langmuir and Freundlich adsorption isotherms. Adsorption kinetics was verified by pseudo-first order, pseudo-second order and intraparticle diffusion models. The kinetic adsorption data fitted the pseudo-second order kinetic model well and also followed the intraparticle diffusion model. The results indicated that IJS could be employed as low-cost biosorbent in wastewater treatment for the removal of CR.
Highlights
A day’s numbers of method are in practice for the removal of dyes from wastewater
For understanding the effect of pH on the adsorption of Congo Red (CR) on Indian Jujuba Seed (IJS), the Pseudo-First-Order model (PFO) and PSO kinetic models were used to fit the experimental data obtained in these experiments
For understanding the effect of size of IJS on the adsorption of CR on IJS, the PFO and PSO kinetic models are used to fit the experimental data obtained in these experiments
Summary
A day’s numbers of method are in practice for the removal of dyes from wastewater. Several classes of synthetic dyes (over 7×105 metric oxidation and ozonation, integrated chemical-biological degradation, biodegradation, coagulation and tons) are produced worldwide every year for industrial flocculation, membrane separation and adsorption. Industries generate enormous volumes Among the techniques, adsorption is one of the most of wastewater every year. Industries wastewater carrying efficient methods because of its low cost and easy nearly 5-10% of quantity is released into the ecosystem. Dye used in industry; it varies from 2% for basic dyes. Dyes containing carbon is the most widely used adsorbent for dye removal, wastewater discharged into water streams but it is too expensive. There is a necessity to treat dyes to the commercial activated carbons
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