Comparative Study on Removal Efficiency of Methylene Blue from Wastewater by using Nano-Scaled Sugarcane Bagasse Ash and Jema Silica Sand

Asefa Mt,Lelisa W,Feyisa Gb

doi:10.16966/2381-5299.181

Abstract

The widely available and easily accessible natural resources are very important to remove organic dyes from wastewater. Here in this work, Methyele Blue (MB) removal efficiency of Jemma Silica Sand (JSS) and Sugar Cane Bagasse ash (SCBA) from aqueous solutions was investigated. The XRD patterns revealed that both JSS and SCBA are crystalline, but the crystalline size of JSS is 56.27 nm and that of SCBA is 70.90 nm. In addition to the percentage of silicon dioxide in JSS was 98% and in that of SCBA was 71.5% as confirmed by XRF results. The morphology and elemental composition of the two materials were revealed by SEM and EDX. The MB removal efficiency of SCBA (~99.14%) is greater than that of JSS (~93.75) because of its higher porosities nature. The adsorption of MB by SCBA follows the Freundlich isotherm model and pseudo-second-order kinetic model indicating chemisorption. Therefore, SCBA is promising absorbent for removing MB from wastewater because of its efficient, cost-effectiveness, and environmentally friendly nature.

Highlights

Purified water is the most essential substance for all living thing to survive
Some of the reasons why this work choice Jamma sand and Bagasse ash as absorbent are as follows: i) sugarcane bagasse ash is a sugar factory by product that are available everywhere, in addition to this, bagasse ash is rich in hydroxyl and phenolic groups which are very crucial for absorption of Methyele Blue (MB) from waste water [44,45,46]. ii) Jamma Sand consists of small particles or grains of mineral, in other words, it have high surface areas, which is very important for absorption of MB [46,47,48]
The XRF results were listed in table 1. These results revealed that silica was present in both Sugar Cane Bagasse ash (SCBA) and Jemma Silica Sand (JSS) but the amount of the silica in both materials are different

Summary

Introduction

Purified water is the most essential substance for all living thing to survive. In the absence of water, life cannot be sustained beyond a few days [1]. Removal efficiency and adsorption capacity of the adsorbents were calculated using equation 1 and 2 as shown below: According to this explanation we are going to predict that JSS will have higher adsorption efficiency than SCBA due to smaller particle size which leads to large surface area of material.

Results

Conclusion