The removal chromium (III) pollution from leather fabric by natural material

ABSTRACT In this study, It has been investigated by absorbtion of Cr(lll) from heavy metals causing the pollution. As we know, Cr, Zn, Fe, Cu, Pd, As, V, Al are the causes of pollution. There are a lot of harmfull of both Cr(lll) and Cr(VI). Even Cr(VI) with low concentrations has more toxic effect. Compounds of chromium have negative effects people, plants and animals living in water. A lot of methods are used to determine the metals which are present in waste water. Atomic Absorption Spectroscopy, Polarography and Voltametry, X-Ray Spectroscopy, Atomic Emission Spectroscopy, Chemilüminesance, UV-visible Spektroscopy. At experiment absorption, Cr(lll) was determined directly with UV-visible Spectrophotometer. But Cr(lll) was oxidized to Cr(VI) at polarographic experiments. Suitable mix rate, pH, particular size of adsorban, calcination temperature was chosen as working parameters. As a result Kula volcanit was chosen as adsorban and Kula volcanit can be used for adsorban of Cr(lll).