Integrated Performance of Fenton Process and Filtration (Activated Charcoal and Sand) for Textile Wastewater Treatment

Abstract

Textile effluents contain complex characteristics with different physicochemical parameters and colorful dye. It is difficult to remove all types of pollutant using a specific treatment process. In this study adsorption filtration alone then Fenton process with sand-gravel mixed filtration and activated charcoal filtration was applied. Fenton process is very effective process for Chemical Oxygen Demand (COD) and Dissolve Organic Carbon (DOC) removal. And Activated carbon is a suitable adsorbent for dye removal. Physicochemical parameters like, COD, DOC, Total Dissolve Solid (TDS), Dissolve Oxygen (DO), Electric conductivity (EC), and pH was measured before and after the treatment process. After filtration by adsorbent filter all the parameter reduced than raw effluent but when Fenton process with sand filtration and activated charcoal filtration was applied all the parameter drastically changed than before. DO level was increased after only adsorption filtration process, Fenton and normal sand filtration process, Fenton, and adsorbent filtration process as 1.8 mg/l< 5 mg/l < 6.19 mg/l < 6 mg/l, respectively. Maximum level of EC (61.33%), TDS (82.75%), BOD (92%), COD (80%), DOC (97.57%), and color (78.57%) was decrease after using Fenton process with Activated carbon filtration process than other treatment process, which was within Bangladesh standard value. This result represents the advantage of using Fenton process with adsorption filtration to treat textile effluent. Moreover, this process is easily operating, practical and environment friendly for using in industrial scale.