Modeling and simulation of CAST-MBBR process for wastewater treatment

ZHANG Lingli; GU Dungang; LU Jiaqi; ZHANG Nan; HU Lijiang; LI Guanghui

doi:10.12299/jsues.22-0149

Volume 37 Issue 2

Jun. 2023

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Article Navigation > Journal of Shanghai University of Engineering Science > 2023 > 37(2): 105-112

ZHANG Lingli, GU Dungang, LU Jiaqi, ZHANG Nan, HU Lijiang, LI Guanghui. Modeling and simulation of CAST-MBBR process for wastewater treatment[J]. Journal of Shanghai University of Engineering Science, 2023, 37(2): 105-112. doi: 10.12299/jsues.22-0149

Citation:

ZHANG Lingli, GU Dungang, LU Jiaqi, ZHANG Nan, HU Lijiang, LI Guanghui. Modeling and simulation of CAST-MBBR process for wastewater treatment[J]. Journal of Shanghai University of Engineering Science, 2023, 37(2): 105-112. doi: 10.12299/jsues.22-0149

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Modeling and simulation of CAST-MBBR process for wastewater treatment

doi: 10.12299/jsues.22-0149

1.
School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
Centre for Process Integration, The University of Manchester, Manchester M13 9PL, UK
3.
Anji Goachieve Environment Technologies Co., Ltd., Huzhou 313399, China

Received Date: 2022-05-13
Available Online: 2023-11-14
Publish Date: 2023-06-20

Abstract

Abstract

Based on cyclic activated sludge technology (CAST) and moving-bed biofilm reactor (MBBR), mathematical modeling and simulation of CAST-MBBR process for a real wastewater treatment plant in Zhejiang Province was carried out. Based on the process mechanism, a semi-empirical biofilm model was embedded into the activated sludge model No.1 to describe the biochemical process of carbon and nitrogen removal in CAST-MBBR. It is then combined with a double exponential model describing particle sedimentation to form a complete CAST-MBBR process model, and a conversion method between inlet and outlet water quality and model components was established. The key parameters that have a significant impact on effluent indicators were screened through sensitivity analysis and adjusted. The calibrated model was verified by using the influent and effluent water data of the wastewater treatment plant throughout the year. The result shows that the simulated effluent data can agree well with the measured data, indicating that the modeling method can be effectively applied to the simulation of CAST-MBBR process.
- cyclic activated sludge technology (CAST),
- moving-bed biofilm reactor (MBBR),
- mathematical modeling,
- parameter calibration,
- numerical simulation

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References(25)

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