Optimal strategies of fill and aeration in a sequencing batch reactor for biological nitrogen and carbon removal

Title
Optimal strategies of fill and aeration in a sequencing batch reactor for biological nitrogen and carbon removal
Author(s)
조무환이진태김준하[김준하]임홍철[임홍철]
Keywords
WASTE-WATER; OPTIMIZATION; MODEL
Issue Date
201005
Publisher
SPRINGER
Citation
KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.27, no.3, pp.925 - 929
Abstract
A modified version of the IAWQ activated sludge model No. 1 (ASM 1) is adopted for the simulation of a sequencing batch reactor (SBR) to optimize the removal of nitrogen (T-N) and organic matters (COD) from wastewater. Since the removal of nitrogen requires both aerobic nitrification and anaerobic denitrification, we seek to find the optimal strategies of substrate fill and aeration. Substrate filling strategy critically influences the removal efficiency of T-N and COD; one fast discrete fill in the beginning of a cycle leads to the best result, while a slow continuous fill results in poor nitrification. In addition, the total aeration time is more important for the removal efficiency than the aeration frequency. A short aeration is beneficial for T-N removal, while a long aeration is beneficial for COD removal as expected. As a result, there is an optimal condition of aeration for the simultaneous removal of T-N and COD.
URI
http://hdl.handle.net/YU.REPOSITORY/22487http://dx.doi.org/10.1007/s11814-010-0122-x
ISSN
0256-1115
Appears in Collections:
공과대학 > 화학공학부 > Articles
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