The Nitrogen Behavior in the Continuous Inflow SBR according to Variations of Internal Recycling Rate 


Vol. 25,  No. 3, pp. 231-237, Sep.  2019
10.7464/ksct.2019.25.3.231


PDF
  Abstract

The BOD removal efficiency according to HRT of the continuous inflow SBR process was decreased from 92.1 ~ 96.0% at HRT 9 ~ 15 h to 86.9 ~ 90.7% at HRT 6 h, but a stable removal efficiency was shown up to HRT 6 h. The T-N removal rate was decreased to 80.1 ~ 87.9% at HRT 12 ~ 15 h, to 71.9 ~ 87.0% at HRT 9 h, and to 60.1 ~ 65.7% at HRT 6 h. As a result of the test of removing organic matter and nitrogen, the optimum HRT of the continuous inflow SBR reactor is determined as 9 h. The TCODcr removal efficiency was 88.4 ~ 96.0% and the TBOD removal efficiency was 92.1 ~ 98.1% as a result of examination of organic matter removal efficiency according to a change in the recycling rate (1 ~ 5Q) at HRT 9 h, suggesting that the a change in the recycling rate has a minimal effect on the removal of organic matter. The T-N removal efficiency was 70.3 ~ 80.4% at 1 ~ 2Q, 77.2 ~ 85.6% at 3Q and 61.5 ~ 80.8% at 4 ~ 5Q according to a change in the recycling rate. The TP removal efficiency was reduced to 75.0 ~ 84.6% at 1 ~ 4Q and to 63.3 ~ 72.4% at 5Q. This is presumably because the release and ingestion of phosphorus (P) by microorganisms is not performed smoothly at 5Q or more. Therefore, the optimum recycling rate for removing organic matter and nutrients was found to be 3Q.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

K. SY, C. YB, J. YN, H. DJ, K. JH, "The Nitrogen Behavior in the Continuous Inflow SBR according to Variations of Internal Recycling Rate," Clean Technology, vol. 25, no. 3, pp. 231-237, 2019. DOI: 10.7464/ksct.2019.25.3.231.

[ACM Style]

Kim SY, Choi YB, Jo YN, Han DJ, and Kwon JH. 2019. The Nitrogen Behavior in the Continuous Inflow SBR according to Variations of Internal Recycling Rate. Clean Technology, 25, 3, (2019), 231-237. DOI: 10.7464/ksct.2019.25.3.231.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

pISSN : 1598 - 9712
eISSN : 2288 - 0690

한국연구재단 등재학술지