Abstract
Thiosulfate is generated from various process industries, such as petrochemical, metallurgical, photography processing, pharmaceutical, pigment and dye manufacturing units, etc. Thiosulfate-bearing wastewater is also produced during the anaerobic treatment of wastewater. In the present work, oxidative removal of thiosulfate in the presence of UV light from aqueous solution has been investigated. The effect of thiosulfate concentration, oxygen partial pressure, UV light intensity and air flow rate on the kinetics of thiosulfate removal has been explored, and suitable rate equations were developed for the oxidation processes. 67 % of thiosulfate was removed from the aqueous solution by carrying out aerial oxidation for one hour. Using photooxidation by UV light, 1,200ppm thiosulfate could be oxidized by one hour. Overall reaction by aerial oxidation followed the second-order kinetics, whereas by photooxidation, it followed third-order kinetics.
| Original language | English |
|---|---|
| Pages (from-to) | 289-293 |
| Number of pages | 5 |
| Journal | Arabian Journal for Science and Engineering |
| Volume | 40 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2015 |
Bibliographical note
Publisher Copyright:© 2014, King Fahd University of Petroleum and Minerals.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation -
SDG 9 Industry, Innovation, and Infrastructure
Keywords
- Advanced oxidation
- Aerial oxidation
- Kinetics
- Thiosulfate
- UV light
ASJC Scopus subject areas
- General
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