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Information Journal Paper

Title

Performance evaluation of moving-bed SBR for livestock wastewater treatment by SND process

Pages

  315-327

Abstract

 In this study, the performance of moving-bed sequencing batch reactor with Intermittent Aeration strategy (IA-MBSBR) was evaluated for treatment of Livestock Wastewater in simultaneous nitrificationdenitrification process. The statistical design and analysis were employed to optimize independent variables such as sludge retention time (SRT), temperature, and aeration rate using response surface methodology (RSM) through Box-Behnken design (BBD). The effect of variables was investigated on chemical oxygen demand (COD) removal and SND efficiency (ESND). The analysis of variance (ANOVA) was conducted to confirm the suitability and significance of the quadratic models. Based on the results, a very high regression coefficient was achieved between the variables and the responses: COD Removal and SND efficiency were R2 = 0. 9788 and R2 = 0. 9600, respectively indicating an excellent evaluation of experimental data by polynomial regression model. Long SRT reduced the negative effect of low temperature, but lowered COD Removal and ESND in high temperature. Further, appropriate aeration rate was vital for the SND to reach equilibrium between the nitrification and denitrification processes. The optimal conditions obtained from the models were SRT= 20 d, temperature = 19. 16 ° C and aeration rate= 0. 1m3/h, which results in COD Removal and ESND of 92. 9 and 91. 3%, respectively. It was found that an alternating anaerobic/aerobic conditions with step-filling mode is an effective, economic, and environmentally-friendly strategy for the biological treatment of Livestock Wastewater in the moving-bed sequencing batch reactor.

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    APA: Copy

    Masoudi, Seyed Mohammad Ali, SARGOLZAEI, JAVAD, Sabeti Dehkordi, Fatemeh, & Zeynali, Vahid. (2020). Performance evaluation of moving-bed SBR for livestock wastewater treatment by SND process. JOURNAL OF ENVIRONMENT AND WATER ENGINEERING, 5(4 ), 315-327. SID. https://sid.ir/paper/268778/en

    Vancouver: Copy

    Masoudi Seyed Mohammad Ali, SARGOLZAEI JAVAD, Sabeti Dehkordi Fatemeh, Zeynali Vahid. Performance evaluation of moving-bed SBR for livestock wastewater treatment by SND process. JOURNAL OF ENVIRONMENT AND WATER ENGINEERING[Internet]. 2020;5(4 ):315-327. Available from: https://sid.ir/paper/268778/en

    IEEE: Copy

    Seyed Mohammad Ali Masoudi, JAVAD SARGOLZAEI, Fatemeh Sabeti Dehkordi, and Vahid Zeynali, “Performance evaluation of moving-bed SBR for livestock wastewater treatment by SND process,” JOURNAL OF ENVIRONMENT AND WATER ENGINEERING, vol. 5, no. 4 , pp. 315–327, 2020, [Online]. Available: https://sid.ir/paper/268778/en

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