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Talaiekhozani A, Eskandari Z, Bagheri M, Talaie 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 Department of Civil Engineering, Jami Institute of Technology, Isfahan, Iran.
2- MSc Department of Chemical Engineering, Jami Institute of Technology, Isfahan, Iran.
3- PhD Department of Chemical Engineering, Jami Institute of Technology, Isfahan, Iran.
4- PhD Department of Chemical Engineering,, Isfahan University, Isfahan, Iran.
Abstract:   (588 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 using UV alone; 3) pollutants removal using a combination of UV/ferrate (VI). The electrolysis process was utilized to generate ferrate (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 removal 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 344 kb]   (130 Downloads)    
Type of Study: Research |
Received: 2016/10/8 | Accepted: 2016/11/21 | Published: 2016/12/24

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