Design of Biofilter Odor Removal System for Conventional Wastewater Treatment Plant
 
 
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University of Al-Qadisiyah, Al-Qadisiyah, Iraq
Publish date: 2018-07-01
 
J. Ecol. Eng. 2018; 19(4):7–15
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ABSTRACT:
Control of odor removal and air pollution in wastewater treatment plants has become critical because of the negative impacts of invasive pollutants that are no longer limited to the working environment of sewage treatment plants but extend to nearby residential areas. To exceed them to reach much further areas when appropriate weather conditions are available. Residents of the city of Al-Nasiriyah in Iraq suffer from the phenomenon of the smell of foul odors from the Jazeera Sewage Treatment Plant in the city of Al-Nasiriyah in the province of Dhi Qar in southern Iraq. Therefore, efforts must be intensified to reduce the risks they pose to the ecosystem and the serious damage it causes to humans. In this study, a biofilter system was designed to remove the odors emitted (hydrogen sulfide and ammonia gas) from the conventional activated sludge Al-Nasiriyah- Jazeera wastewater treatment plant. The biofilter odor remove system is designed for inlet screw pumping station, screening station, aerated grit chamber and inlet parshall flume. The results of the design of the biofilters, which achieves the environmental determinants of Iraq according to the law of environmental protection No. 27 in 2009 and its instructions No. 3 in 2011 was inlet screw pumping station (volume of buildings to be treated 400 m3, number of changes per hour >5 n/h, design flow rate to be captured and treated 2000 m3/h, H2S removal efficiency >98%, volume of substrate media 24 m3, height of surface media 1.4 m, and overall dimension (length 8.9 m, height 2.27 m, width 2.13 m)), and preliminary treatments screening station, aerated grit chamber and inlet parshall flume (volume of buildings to be treated (each biofilter) 400 m3, number of changes per hour 12 n/h, design flow rate to be captured and treated (each biofilter) 5000 m3/h, H2S removal efficiency >98%, volume of substrate media 60 m3, height of surface media 1.4 m, and overall dimension (length 10.6 m, height 2.27 m, width m 2.13 m)).
CORRESPONDING AUTHOR:
Ali Hadi Ghawi   
University of Al-Qadisiyah, 00964 f Al-Qadisiyah, Iraq