Treatment of tanneries waste water by ultrasound assisted electrolysis process. | [Journal of Chemical Society of Pakistan • 2013]

Author(s):

1. Robina Farooq: Department of Chemical Engineering, COMSATS Institute of Information Technology, Lahore, Pakistan

2. Zaki Ahmed: Department of Chemical Engineering, COMSATS Institute of Information Technology, Lahore, Pakistan

3. Mazhar Amjad Gilani: Department of Chemical Engineering, COMSATS Institute of Information Technology, Lahore, Pakistan

4. Mehwish Durrani: Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistan

5. Qaisar Mahmood: Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistan

6. Saleem Farooq Shaukat: Department of Physics, COMSATS Institute of Information Technology, Lahore, Pakistan

7. Nnaji Chioma: Institute of Chemical Engineering and Technology, University of the Punjab, Lahore, Pakistan

8. Muhammad Farooq: Department of Civil Engineering, Glasgow University, Glasgow, United Kingdom

9. Asim Yaquob: Civil Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Malaysia

Abstract:

The leather industry is a major producer of wastewater and solid waste containing potential water and soil contaminants. Considering the large amount and variety of chemical agents used in skin processing, the wastewaters generated by tanneries are very complex. Therefore, the development of treatment methods for these effluents is extremely necessary. In this work the electrochemical treatment of a tannery wastewater by ultrasound assisted electrochemical process, using stainless steel and lead cathode and titanium anodes was studied. Effect of ultrasound irradiation at various ultrasonic intensities 0, 40, 60 and 80% on electrochemical removal of chromium was investigated. Experiments were conducted at two pH conditions of pH 3 and 9. Significant removal of chromium was found at pH 3 and it was also noticed that by increasing ultrasonic intensities, percentage removal of chromium and sulfate also increases. The optimum removal of chromium and sulfate ions was observed at 80% ultrasonic intensity. The technique of electrolysis assisted with ultrasonic waves can be further improved and can be the future waste water treatment process for industries.

Page(s): 600-604

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 35, Issue: 3, Year: 2013

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