Modeling of Dynamic Membrane Bioreactor Nitrification Denitrification Process for Treating Salt-Bearing Aquaculture Wastewater

Abstract:

Nitrogen removal from salt-bearing aquaculture wastewater was investigated at different chloride concentration using dynamic membrane bioreactor. Using the activated sludge model No.1 (ASMl) to simulate the DMBR by Biowin, the results showed that changing the values of KO,H, KNO and bH, the model values of NO3--N and TN was almost same to the experiment values, the deviation were about ±0.4% and ±0.4% respectively. KO,H, KNO and bH were critical factors affecting the effluent quality when the influent concentration of chloride changed. The value of KO,H and bH increased from 0.36 and 0.04 to 1.0 and 0.27 when chloride concentration improved to 750mg•L-1.However the values of KNO decreased from 0.5 to 0.1 with increasing chloride content from 0mg•L-1 to 1500mg•L-1.

• Periodical: Advanced Materials Research (Volume 487)
• Pages: 798-802
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.487.798
• Online since: March 2012
• Authors: Fang Fang Lu, Jun Ming Hong, Wei Bo Li
• Keywords: ASM1, Dynamic Membrane Bioreactor (DMBR), Mathematical Modeling, Nitrification Denitrification Process, Salt-Bearing Aquaculture Wastewater

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