ADSORPTION OF METHYLENE BLUE ONTO COMMERCIAL AND DERIK CLAY


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Önal Karakoyun G., Selçuk A., Kul A. R. , Kuyucu A. E.

International Enviromental Seciences Semposium of Van ( IESSV 14), Van, Turkey, 4 - 07 June 2014, pp.274-275

  • Publication Type: Conference Paper / Summary Text
  • City: Van
  • Country: Turkey
  • Page Numbers: pp.274-275

Abstract

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.

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