Removel Of Chromium (Vi) From Leather Industry Waste Water By Adsorbtion Methot

Removel Of Chromium (Vi) From Leather Industry Waste Water By Adsorbtion Methot

Yavuz , Mesut

Environmental pollution is an event that causes deleterious changes in the physical, chemical or biological properties of air, water, soil or nutrients, which in turn negatively affects humans' or other living organisms' health, living or activities (1). Development of industry and rapid population growth brought along pollution and consequently pollution of water sources. Today, the heavy metals present in drinking and utility waters are amount the most serious pollutions and pose a great threat for public health. Water used in industry is one of the sources of water pollution. As mentioned earlier, heavy metals have a respectively more important place in water pollution. Heavy metal pollution is caused by the liquid wastes of many industries such as metal coating, mining, tanning, chlorine-alkali, radiator production, melting, battery production and alloy industries. The facts that water is indispensable for life, and that it is used constantly in all areas of life set forth the importance of preserving water sources and the necessary level of water quality for drinking and using. All kinds of substances that may be in water is harmful to health over a certain concentration. Due to this reason, the pollutants in water have to be removed. Examining the studies in the literature concerning the removal of Cr(VI) ions from waste waters shows that the Cr(VI) ion defoliates plants and trees and reduces yield particularly when the waters of the streams it is discharged to is used for agricultural irrigation, reduces meat and milk yield when used in breeding, and causes allergic reaction upon contacting humans. It is also seen from the literature that, in addition to the chemical methods, also factory wastes (sunflower meal, bagasse, glaze waste, gypsum waste, marble powder, fly ash, etc.) that are more economical and natural resources (marl, cinder, red loam, etc) are used for removing Cr(VI) ion, which is classified as a heavy metal, from water and successful results are obtained from these methods. Our purpose in this study is to plan the removal of the heavy metals, 90% of which are used in the leather industry and oxidized to Cr(VI) ion causing pollution in the Menderes river, Nif stream and particularly Gediz river in our region, by means of the absorbents that can be obtained economically and in a convenient way by utilizing the wastes generated in the factories of the same region and natural resources. It is intended to determine the optimum conditions for absorbing chromium from leather waste water with the use of gypsum waste, which can be obtained in a highly economical way and the way of utilization is being sought as the abundant waste of the Serel ceramic factory.

Conference or Workshop Item
PeerReviewed

2012-05-31

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