Microwave Assisted Urea Modified Bengal Gram Husk for the Batch Wise Removal of Methylene Blue from Aqueous Medium
Effluents from industries directly pollute water bodies as a result the drinking water sources are contaminated. In present study, removal of methylene blue from aqueous medium by using raw bengal gram husk (RBGH) and microwave assisted urea modified Bengal gram husk (UMBGH) was done. Effect of different parameters such as contact time, shaking speed, adsorbent dose, temperature, pH were studied. Mechanism of adsorption was revealed using Langmuir, Freundlich and Temkin adsorption model. Experimental data followed the Langmuir adsorption isotherm that is revealed from the R2 values and adsorption capacity (qmax) 7.915 mg g-1 and 111.178 mg g-1 for both RBGH and UMBGH, respectively. The value of “n” was 1.001 and 0.979 for RBGH and UMBGH which indicated that adsorption was favorable. BT value of RBGH and UMBGH was 5.784 and 4.093, respectively which revealed that adsorption was physical in nature. Present study proved that microwave assisted urea modification of Bengal gram husk greatly increased the removal efficiency of the adsorbent.
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