Effect of Mnso4 on the Chromium Removal from the Leather Industry Wastewater

• Published in: Environmental technology 2005-04, Vol.26 (4), p.397-400
• Main Authors: Ozdemir, C., Karatas, M., Dursun, S., Argun, M.E., Dogan, S.
• Format: Article
• Language: English
• Subjects: Animals; Applied sciences; CHROMIUM; Chromium - isolation & purification; Dose-Response Relationship, Drug; Exact sciences and technology; Humans; Hydrogen-Ion Concentration; Industrial Waste; Industrial wastewaters; LEATHER INDUSTRY; Manganese Compounds - pharmacology; MNSO4; Pollution; REMOVAL; Sulfates - pharmacology; Temperature; Waste Disposal, Fluid - methods; WASTEWATER; Wastewaters; Water Pollutants, Chemical - isolation & purification; Water Purification - methods; Water treatment and pollution
• ISSN: 0959-3330; 1479-487X
• DOI: 10.1080/09593332608618551

Chromium (VI) is one of the heavy metals in water and wastewater that has the most toxic characteristic. Consequently, it is dangerous for human and environmental health. Various methods are used for removal of the chromium from wastewater, and new methods have been developed in recent years. Recent studies and investigations on the removal of environmental pollution selected methods that were economical, of optimum efficiently and could be carried out easily. In this study, the removal of Cr 6+ in the leather industry wastewater is investigated using MnSO 4 that was used easily and economically. Experimental studies are performed in two phases. In the first phase, the optimum MnSO 4 dose for removal of Cr 6+ was determined. In the second phase, the optimum pH was studied. About 96% removal of chromium was launched with 530 mg l −1 MnSO 4 dose at pH value 9 in the wastewater sample.