Synthetic dyes are found in a wide range of products such as clothes, leather accessories, and furniture. These dyes are commonly used every day. However, a side effect of their widespread use is that up to 12% of these dyes are wasted during the dying process and about 20% of this wastage enters the environment (mainly into water supply).
Published in Chapter:
Impact of Synthetic Dyes on Human Health and Environment
Ruchi Srivastava (Jiwaji University, Gwalior, India) and Irfan Rashid Sofi (Jiwaji University, Gwalior, India)
Copyright: © 2020
|Pages: 16
DOI: 10.4018/978-1-7998-0311-9.ch007
Abstract
Colour is the most important part to make any fabric attractive, but its use for dying has become a major environmental hazard. Colloidal particles present with color increases the turbidity, gives bad appearance, foul odour, and obstructs the penetration of sunlight into water bodies required for the photosynthesis process, which interferes with the oxygen flow mechanism and hence marine life. So, it is essential to remove such pollutants from the waste water before its final disposal into water bodies. Photocatalysis is one of the advance oxidation processes, mainly carried out in the presence of light and suitable photocatalytic materials for the degradation of dyes. This chapter outlines the background of dye chemistry, the application areas, and the impact of dyeing effluents in the environment and on living beings.