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Journals / Natural and Engineering Sciences / 2019 / Cilt: 4 - Sayı: 3

Effect of Intermittent Aeration and Step-Feed on Nitrogen Removal Performance in Anoxic-aerobic Sequencing Batch Reactor

Engin GÜRTEKİN
Pages
299–307
Publication Date
2019-10-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Experimental results show that the effect of intermittent aeration on TIN removal was limited and that TIN removal performance with step-feed intermittent aeration was significantly increased.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, it was investigated the effect intermittent aeration and step-feed on nitrogen removal by providing anoxic-aerobic, anoxic-aerobic-anoxic-aerobic and step-feed anoxic-aerobic-anoxicaerobic working conditions.
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Key Findings & Data:Chemical oxygen demand (COD) removal efficiency was the same in all three working conditions and was found to be 91%.
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Conclusion & Impact:Experimental results show that the effect of intermittent aeration on TIN removal was limited and that TIN removal performance with step-feed intermittent aeration was significantly increased.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Sequencing batch reactor · nitrogen removal · intermittent aeration

Abstract

In this study, it was investigated the effect intermittent aeration and step-feed on nitrogen removal by providing anoxic-aerobic, anoxic-aerobic-anoxic-aerobic and step-feed anoxic-aerobic-anoxicaerobic working conditions. Chemical oxygen demand (COD) removal efficiency was the same in all three working conditions and was found to be 91%. The NH4 + -N removal efficiency is almost the same. The NH4 + -N removal efficiencies in the W1, W2 and W3 are 92%, 93% and 95%, respectively. Total inorganic nitrogen (TIN) removal efficiency increased by 4% when intermittent aeration was applied. Increasing the efficiency of TIN removal by 24% was achieved by applying the step-feed intermittent aeration. Experimental results show that the effect of intermittent aeration on TIN removal was limited and that TIN removal performance with step-feed intermittent aeration was significantly increased.

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Cite This Article

GÜRTEKİN, E. (2019). Effect of Intermittent Aeration and Step-Feed on Nitrogen Removal Performance in Anoxic-aerobic Sequencing Batch Reactor. Natural and Engineering Sciences, Cilt: 4 - Sayı: 3, 299–307. https://ajindex.com/articles/793190

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