International Enviromental Seciences Semposium of Van ( IESSV 14), Van, Turkey, 4 - 07 June 2014, pp.274-275
Pollution, which damages to health significantly, have been taking place due .
industrial activities that carried out in order to raise the standard of living c:
human beings. A significant part of these contaminations consist of toxic hea .
metals and dyes.
Increase of usage of dyes in various industries leads to an increase -
loads of colors in the resulting wastewater. Discharge of this wastewater with . _r
refinement impairs aesthetic appearance of receiving water medium and cause:
damage to aquatic life. This wastewater enabling reach of human body thro.f
receiving water medium has also carcinogenic and toxic effects on the pe:: e
According to the existing wastewater discharge standard, color is not a limit - g
parameter but treatment is vital when considered in terms of the environmerr
and human health.
Dyes vary according to industries and industrial activities which art
used. The industry branches in which most of the dyes used are; textile, pit:
leather, rubber, pharmaceutical, food, cosmetics and paint industries. Espe; u
considering rapid development of textile industry in our country, refining
colorful treatment is of paramount importance in view of environment u-;
human health. For a long time it is known that clays adsorb dyes and hea
metals and therefore, in recent years, their use for the removal of these type: :
pollutants as adsorbent has gained importance. In this study, use of claj;
removal of dye was investigated.The purpose of this study is to recognize the danger of dyes due to
industrial development, which started to become a great danger day to day able
and investigate methods for removal of dyes from aqueous medium, where it has
great influence. Clays are cheaper and easy to obtain, which make their use for
the removal of dyes economically attractive. Therefore, in this study, two types
of clays were used as an adsorbent. In this study, adsorption capacity of natural
clay samples from Derik district of Mardin province and commercial clay
samples for methylene blue dye was investigated.
Removal of dyes for commercial clay at 100 mg/L and at 25 °C was
found to be 93 %, while that for natural clay at 100 mg/L was obtained as 97 %.
In conclusion, it was found that, Na-montmorillonite clay, which is acommercial
clay used in this study, and the raw clay obtained from Mardin - Derik adsorbed
methylene blue dye in a yield of higher than 90 %.
Key Words: Clay, dye, adsorption.