Module 5 : Major Sources of Water Pollution

Lecture 4 : Dying and Tanning

 

Water Pollution From Dyeing Industry

Contents

• Water Resources

• Dyeing Industry

• Major Pollutants

• Classification of Dyes

• Textile Manufacturing Process

• Water Usage in Dyeing

• Wastewater

• Wastewater Treatment

– Physicochemical wastewater treatment

– Biological wastewater treatment

– Biochemical and physicochemical combination process

– Cutting-edge treatment process

• Solutions

Water Resources

HOW THE WORLD USES FRESH WATER

Dyeing Industry

• Paints

• Textiles – 17-20% industrial water pollution 1

• Printing

• Inks

• Paper

• Plastics