1. Introduction
Industrial, agricultural and domestic wastes, due to the rapid
development in the technology, are discharged in the several
receivers. Generally, this discharge is directed to the nearest
water sources such as rivers, lakes and seas. Textile dyeing process
is an important source of contamination responsible for the
continuous pollution of the environment. The volume ofwastewater
containing processed textile dyes is on steady increase. Over
7×105 tonnes and approximately 10,000 different types of dyes
and pigments are produced world wide annually [1]. It is estimated
that 10–15% of the dye is lost in the effluents during the
dyeing process. Colour is a characteristic of wastewater, which
is easily detected. Control of water pollution has importance
for both organisms, which live in water and those who benefit
from water. Many dyes reaching the water source are difficult
to decompose and cause many problems due to their carcinogenicity
[2–4]. Consequently, it is important to remove these
pollutants from wastewater before their final disposal.