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Talaiekhozani A, Eskandari Z, Bagheri M, Talaei M R. Removal of H2S and COD Using UV, Ferrate and UV/Ferrate from Municipal Wastewater. J. Hum. Environ. Health Promot.. 2016; 2 (1) :1-8
URL: http://zums.ac.ir/jhehp/article-1-79-en.html

1- PhD Civil Engineering Department, Jami Institute of Technology, Isfahan, Iran
2- M.Sc Chemical Engineering Department, Jami Institute of Technology, Isfahan, Iran
3- PhD Chemical Engineering Department, Isfahan University, Isfahan, Iran
Abstract:   (123 Views)

Background: The aim of this study is to compare UV, ferrate(VI) and UV/ferrate(VI) methods for removal of hydrogen sulfide and chemical oxygen demand (COD) from municipal wastewater under a continuous condition.

Methods: The experiment was divided into three parts: 1) pollutants removal by using ferrate(VI) alone; 2) pollutants removal by using UV alone; 3) pollutants removal using a combination of UV/ferrate(VI). The electrolysis process was utilized to generate ferrat(VI.)

Results: The results showed that UV had the highest pollutants removal, so that 89% and 85% of hydrogen sulfide and COD were removed from the wastewater, respectively. UV/ferrate(VI) ranked as the next most efficient method. This method removed 65% and 73% of hydrogen sulfide and COD, respectively from the wastewater.

Conclusion: Using ferrate(VI) alone had the lowest pollutant removal efficiency, with 41% and 48% of hydrogen sulfide and COD removed from wastewater, respectively.  UV has a higher ability to remove hydrogen sulfide and COD from wastewater, compared with UV/ferrate(VI) and ferrate(VI) alone.

Full-Text [PDF 333 kb]   (19 Downloads)    
Type of Study: Research |
Received: 2016/10/8 | Accepted: 2016/11/21 | Published: 2016/12/24

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