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Effect of the hydraulic detention time and the volumetric ratio of anaerobic to aerobic zone on the efficiency of the upgraded activated sludge units using (Bardenpho) system | ||
| Al-Rafidain Engineering Journal (AREJ) | ||
| Article 15, Volume 22, Issue 1, 2014, Pages 97-109 PDF (0 K) | ||
| DOI: 10.33899/rengj.2014.87020 | ||
| Authors | ||
| Abeer.T. A. H. AL-Abdaly; Dr. K. K. Al-Ahmady | ||
| Abstract | ||
| In this research, five experimental plants have been established and operated using synthetic domestic wastewater in order to study the effect of some operational parameters on the removal efficiency of organic and nutrients pollutants in Bardenpho Process. The results of the research proved that the removal efficiency of organic, nitrogen, and phosphorus materials were higher in the reactors that work by Bardenpho process comparing to the ordinary activated sludge system. Also the biological sludge resulted from Bardenpho reactors has better settling characteristics. Likewise, the pH values in the plants work by Bardenpho process were lower than those in the plant that work by ordinary activated sludge system. The results of the study also shown that the removal efficiency of organic materials in the Bardenpho reactors increases by the reduction of volumetric ratio of the anaerobic to aerobic zone, in contrast, the concentrations of Nitrate, Ammonia, and Phosphate decrease by the reduction this ratio, in addition, the value of SVI decreases by increasing the size of anaerobic zone. On the other hand, The results also proved that increasing the hydraulic detention time (HRT) lead to increase the efficiency of removing organic, nitrogen, and phosphorus materials of the biological reactors that work by Bardenpho process. Moreover, increasing the HRT leads to increase value of the sludge volume index (SVI) at all of the Bardenpho and ordinary activated sludge reactors. In contrast, the value of pH drops by the increasing of hydraulic detention time. | ||
| Keywords | ||
| KEYWORDS; Bardenpho; HDT; Volumetric Ratio; Anaerobic | ||
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