Chromium Removal and Recovery From Tanneries Effluents

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dc.contributor.advisorDr. Amer M. El-Hamouz
dc.contributor.authorAbeer Mousa Al-Sous
dc.date.accessioned2017-05-03T09:30:14Z
dc.date.available2017-05-03T09:30:14Z
dc.date.issued2000
dc.description.abstractTanning of leather is a traditional industry in Palestine. It is accompanied by the use of tens of chemicals and consequently by the emission of a number of pollutants. Many pollutants need pretreatment before discharging the effluents in order to meet the discharging requirements. One of the most dangerous tanning pollutants is. The removal and recovery of chromium from the tanning effluents is the main objective of this work. The application of coagulation- precipitation method for the treatment of the chromium in the tanneries effluents was applied in this study. Removal was applied to the effluents of the tanning step in the tanning process (the step to which chromium is added to the hides and skins). Experiments were carried out in Birzeit University/Water Engineering laboratory as well as in one of Hebron Tanneries. Characterization of the tanneries effluents through laboratory analysis were carried out in Birzeit University/Water Engineering Laboratory. Analysis was carried out according to the Standard Methods for the Examination of Water and Wastewater. Recovery was carried out in Hebron tannery. Three coagulants were used to examine the efficiency of removal: MgO, Na₂CO₃ and Prestol. MgO showed the best removal efficiency. Experiments showed a 99% removal. The precipitated chromium was then successfully used in the leather tanning and showed a good leather quality as that tanned by fresh chromium.en
dc.description.abstractArabic Abstract Not Availablear
dc.identifier.urihttps://hdl.handle.net/20.500.11888/7678
dc.titleChromium Removal and Recovery From Tanneries Effluentsen
dc.titleChromium Removal and Recovery From Tanneries Effluentsar
dc.typeThesis
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