Decolorization and Chemical Oxygen Demand Reduction (Cod) of Simulated Textile Wastewater Using Fenton’s Reagent

Decolorization and Chemical Oxygen Demand Reduction (COD) of Simulated Textile Wastewater using Fenton’s Reagent

Submitted to: Eric Siy COE 5100 – Statistical Research and Design

Chemical Engineering Department College of Engineering De La Salle University – Taft, Manila

by MARIA KATRINA A. PULUTAN MS Chemical Engineering

1st Trimester AY 2010-2011

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INTRODUCTION

Nature is threatened by the environmental contamination caused by the wastewater produced and discharged every day. Wastes coming from the industrial and agricultural sectors contribute a large portion. One such industry is the textile industry. About 42,000 L of wastewater is discharged daily by each of the textile industries (Maravilla, 2003 as cited by Africa, 2005). Industrial wastewater from manufacturing sources contributes a devastating effect on the body of water as well as effects on individual’s health. Production of large volumes of highly colored wastewater is one problem encountered in a textile industry. It has been estimated to generate 1 to 2 million gallons per day of wastewater (Freeman, 1995). Every textile industry is unique with respect to the type of production and the technology and chemicals used in production. Thus, it is often unusual to predict the characteristics of textile wastewater by using reported values in the literature. Other factors are the different requirements of the fibers and the different quality required for the final fabric. Amount of pollutants present in textile wastewater varies according to the wastewater management practices and amount of water used in the production. The water consumption and wastewater generation from a textile industry depends upon the processing operations used during the conversion of fibers to textile fabric. Wastewater from the textile industry is characterized with high values of Biochemical Oxygen Demand (BOD), which can cause rapid depletion of dissolved oxygen; Chemical Oxygen Demand (COD); color; and pH.

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