Influences of COD Model Components in ASM2D on Oxygen Mass Transfer Coefficient

Abstract:

Chemical Oxygen Demand was split into S_A (volatile acid / fermentation products), S_F (fermentable, readily bio-degradable organic substrates), X_S (slowly biodegradable substrates), S_I (Inert soluble organic material) and X_I (Inert particulate organic material). Research of how these model components affect the oxygen transfer coefficient (K_La) was studied in this paper. The results showed that with the increase of S_A, K_La decreased, K_La first decreased when S_F was in 25-100 mgCOD/L, then it increased in 100-200 mg/L,then it decreased again. X_S has a poor regularity and slight infect on oxygen mass transfer, X_I, S_I may inhibit the oxygen transfer.

• Periodical: Advanced Materials Research (Volume 777)
• Pages: 347-351
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.777.347
• Online since: September 2013
• Authors: Xian Wei Fu, Chun Mian Lin, Ya Ping Guo
• Keywords: Activated Sludge System, ASM2D, COD Model Component, Oxygen Transfer Coefficient

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