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:: Volume 12, Issue 2 (March-April 2018) ::
IJT 2018, 12(2): 27-32 Back to browse issues page
Efficiency of SBR Process with a Six Sequence Aerobic-Anaerobic Cycle for Phosphorus and Organic Material Removal from Municipal Wastewater
Nadiya Shahandeh , Reza Jalilzadeh Yengejeh *
Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. , rahma.reza@gmail.com
Abstract:   (300 Views)
Background: Various chemical, physical and biologic treatment methods are being used to remove nitrogen and phosphorus from wastewater. Sequencing batch reactor (SBR) is a modified activated sludge process that removes phosphorus and organic material from sanitary wastewater, biologically.
Methods: This study was conducted in 2016.The performance of an aerobic-anaerobic SBR pilot device, located at Ahwaz West Wastewater Treatment Plant, Ahwaz, southern Iran in phosphorus and organic material removal was evaluated to determine the effect of the aerobic-anaerobic step time on the efficiency of nitrogen and phosphorus removal, the effect of changing the sequence of steps and the effect of time ratio on phosphorus removal efficiency. A reactor of 8 L was used. Influent contained 397 and 10.7 mg/l COD and phosphorus, respectively. The pilot plant started with a 24 h cycle including four cycles of 6 h, as follows: 1- Loading (15 min), 2-Anaerobic (2 h)-Aerobic (2 h), 3- Settling (1 h), Idleness (30 min) and 5- decant (15 min). 
Results: After reaching steady conditions (6 months), Removal percentages of phosphorus, BOD5, COD, and TSS in The SBR over a period of 6 months was 79%, 86%, 89% and 83%, respectively.
Conclusion: Result of this study can be used for designing and optimum operation of sequencing batch reactors.
Keywords: Environment, Phosphorus, SBR, Wastewater
Full-Text [PDF 1050 kb]   (99 Downloads)    
Type of Study: Research | Subject: General
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Shahandeh N, Jalilzadeh Yengejeh R. Efficiency of SBR Process with a Six Sequence Aerobic-Anaerobic Cycle for Phosphorus and Organic Material Removal from Municipal Wastewater. IJT. 2018; 12 (2) :27-32
URL: http://ijt.arakmu.ac.ir/article-1-638-en.html

Volume 12, Issue 2 (March-April 2018) Back to browse issues page
مجله سم شناسی و مسمومیتهای ایران Iranian Journal of Toxicology
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