Evaluation of Equilibrium Isotherms and Kinetic Parameters for the Adsorption of Methyl Orange Dye onto Blue Green Algal Biomass

Abstract

Large amount of water is being continuously consumed by textile industries at different steps of dyeing, finishing etc. As there is a large consumption of water the pouring up of waste water into the environment is also unavoidable. This waste water from the industries is very rich in colour containing residue of dyes as major effluents. With the increase in the water pollution due to textile waste, the stringent restrictions on the hazardous organic contents of the industrial effluents is also increasing and hence it becomes important to remove these organic pollutants by proper treatment methods before being released to the water course. Generally, the dyes have stability towards light and oxidizing agents and are non-degradable in nature and this makes the selection of suitable method for dye removal complicated [1,2]. Various treatment techniques have been used for the removal of organic as well as inorganic substances from water, such as adsorption [3,4], photocatalytic degradation [5], electrochemical [6], membrane process [7], etc., but among these due to advantages like low cost, high

Entrapment of green seaweed Caulerpa Scalpelliformis for extracting Pb(II), Ni(II) and Zn(II) metal ions from aqueous solutions

“…Sorption isotherm is very important if the whole adsorbent potential and its affinity with sorbates are to be understood (Sagar and Rastogi 2019;Praveen and Vijayaraghavan 2014). Isotherm sorption was detected at a constant pH of 7 for Pb and 6 for Ni and Zn at 30°C at different initial metal ion concentrations of 10, 25, 50, 75, 100, and 125 mg/L.…”