Application Of Peanut Shell Bio Adsorbent To Improve Water Quality Parameters Of Formazine And Clay Suspension

Abstract

Bio adsorbents have been proven to be more effective than coagulants in reducing turbidity and improving water quality throughout the water treatment process. This is owing to the fact that the former does not leave any residues in the treated water. The current study is based on the preparation of bio adsorbent samples from waste peanut shells, which are then utilized to treat formazine and clay suspensions that have been artificially generated. Low temperature carbonization and microwave pyrolysis were used to prepare adsorbent samples of two different particle sizes, Mesh-18 and Mesh-50. One of the samples was acid pretreated to see if there was any influence of surface modification on adsorption effectiveness. To replicate chemical and natural suspensions, turbidity 200 NTU formazine and clay suspensions were generated. After treating these suspensions with all adsorbent samples, changes in water quality metrics such as turbidity, pH, conductivity, TDS, and salinity were measured. According to the results of the experiments, the adsorbent treatment increased the values of pH, TDS, ionic conductivity, and salinity while decreasing the value of turbidity. When a bio adsorbent sample generated using the microwave pyrolysis method was employed, a significant reduction (up to 96.5%) in the turbidity value of both formazine and clay suspension was found.