Performane of Activated Carbon Adsorption in Removing of Organic Pollutants from River Water

Iqbal Khalaf Erabee,Saleem M Ethaib

doi:10.14419/ijet.v7i4.20.26134

Abstract

This study presents a water treatment process by using a down-flow fixed bed activated carbon contractor model. Two types of activated carbon (AC) used, powder and granular activated carbon from date pits as a raw material, the parameters tested are biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solid (TSS), total dissolved solid (TDS) and pH. The column diameter and bed depths are made constant, whereas the size of activated carbon is varies. The obtained removal efficiencies for sample of river water are 39.8% of BOD, 41.8% of COD, 81.8% of TSS and 67.7% of TDS for granular AC. For powdered AC the removal efficiencies of parameters are 34.7% of BOD, 17.6% of COD, 72.7% of TSS and 50% of TDS. The granular AC made from date pits is the best activated carbon because of low cost of raw material and it is widely applied for usage in the water or wastewater treatment, as it is very effective in terms of cost and performance to cater the increasing demand of clean water.

Highlights

Water is a chemical compound with the chemical formula H2O (2 molecules of hydrogen bonded with a molecule of oxygen by covalent bonds)
The commonly used system for fixed bed down –flow activated carbon contractor is by discharging the wastewater sample on top of the column to the filter bed, as it will allow the flow of the wastewater downward by gravitational force instead of applying pumps and the products will be withdrawn at the bottom of the column
The parameters taken into consideration for assessing the quality of absorption of the carbon contractors used are biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solid (TSS), total dissolved solid (TDS) and pH

Summary

Introduction

Water is a chemical compound with the chemical formula H2O (2 molecules of hydrogen bonded with a molecule of oxygen by covalent bonds). Water covers about 70% of the earth surface and it is very essential for every living organism in the whole world. Activated carbon is a form of carbon that is processed to produce very small, low volume carbon that are very porous and high surface area, for the adsorption or chemical reactions. The commonly used system for fixed bed down –flow activated carbon contractor is by discharging the wastewater sample on top of the column to the filter bed, as it will allow the flow of the wastewater downward by gravitational force instead of applying pumps and the products will be withdrawn at the bottom of the column. The main objectives of this study are to evaluate the performance of the down flow fixed bed activated carbon contractor for the removal of dissolved, colloidal and suspended constituents from river water, and to compare the quality of water after being treated by different types of activated carbon

Objectives

Results

Conclusion