A novel tannery wastewater treatment and recovery method for chromium for industrial usages by adsorption and Photocatalysis with a case study
محل انتشار: شانزدهمین کنگره ملی مهندسی شیمی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 445
فایل این مقاله در 5 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
NICEC16_580
تاریخ نمایه سازی: 7 خرداد 1398
چکیده مقاله:
In tannery factories, chromium sulfate is used for the improvement of leather quality. High chromium concentration in these wastewaters is a critical threat to the environment. In this study, Cr3+ and Cr6+ removal are studied with a novel method to the highest global standards with 95% chromium recovery for tannery industrial reuse. In this study, a wastewater from one of the tannery factories in the east of Iran was used. Average chromium concentration in this wastewater was measured 5000 mg/L. After passing through an activated carbon column and after that an activated alumina column, and finally 99.98% of chromium is removed and concentration reaches to less than 1 mg/L. Also washing of adsorbents with 5% sulfuric acid, chromium sulfate solution for tannery usages would be produced.
کلیدواژه ها:
نویسندگان
Pouria Paridash
Department of Metallurgical engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Seyed Mahdi Ghasemi
Department of Chemical engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Aliakbar Amooey
Department of Chemical engineering, Faculty of Engineering, University of Mazandran, Babolsar, Iran
Hooman Bakhshi
Nanotechnology Department, School of New Technologies, Iran University of Science and Technology, Tehran, Iran