Activated Sludge Model-Based Modeling of Membrane Bioreactor Processes

The step feed model based on the Activated Sludge Model No.1 (ASM1) and the optimum model of the ammonia nitrogen (SNH) removal in wastewater were established. Four aeration tanks under the different step feed ratios were simulated by Matlab Simulink. The results show that single-feeding is conducive to the removal of readily biodegradable substrate (SS) and the growth of heterotrophic organisms (XBH), and to lower the biodegradable substrate (XS) at the same time. The SS, XS, and SNH concentrations are 1.36, 5.98, and 3.02 mg/L respectively in effluent. However, the step-feeding is conducive to the SNH removal, and the autotrophic bacteria (XBA) growth. Under the step feed ratio (25/25/25/25%), the SS, XS, and SNH concentrations are 2.64, 10.79, and 2.61 mg/L respectively. Under the optimum ratio (28.7/23.6/20.4/27.2%), step-feeding could further facilitate the removal of SNH and hinder the removal of organic matter, their concentrations are 2.70, 10.98, and 2.47 mg/L respectively.

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Dynamic model prediction control for an activated sludge model based on a T-S multi-model

2015 3rd International Conference on Control, Engineering & Information Technology (CEIT) ◽

10.1109/ceit.2015.7233127 ◽

2015 ◽

Author(s):

Matoug Lamia ◽

Khadir M. Tarek

Keyword(s):

Activated Sludge ◽

Dynamic Model ◽

Model Prediction ◽

Activated Sludge Model ◽

Model Based ◽

Model Prediction Control ◽

Prediction Control

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Performance comparison of different optimization methods for the wastewater treatment plant model based on the Activated Sludge Model No. 3 and design of the plant control

31st European Symposium on Computer Aided Process Engineering - Computer Aided Chemical Engineering ◽

10.1016/b978-0-323-88506-5.50117-0 ◽

2021 ◽

pp. 747-753

Author(s):

Melinda Simon-Várhelyi ◽

Vasile Mircea Cristea ◽

Alexandra Veronica Luca ◽

Marius Adrian Brehar

Keyword(s):

Wastewater Treatment ◽

Activated Sludge ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Optimization Methods ◽

Performance Comparison ◽

Plant Model ◽

Activated Sludge Model ◽

Model Based ◽

Plant Control

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A Modified Activated Sludge Model No.3 (ASM3) for Membrane Bioreactor (MBR) with an Emphasis for Solids Hydrolysis

E3S Web of Conferences ◽

10.1051/e3sconf/20185304039 ◽

2018 ◽

Vol 53 ◽

pp. 04039

Author(s):

Xinyue Jiang ◽

Bin Xu

Keyword(s):

Carbon Source ◽

Activated Sludge ◽

Retention Time ◽

Membrane Bioreactor ◽

Activated Sludge Model ◽

Modeling Approach ◽

Sludge Retention Time ◽

Subsequent Effect ◽

Hydrolysis Of ◽

Denitrification Process

The previously assumed “inert” organics measured by respirometric method has been reported to be hydrolysable under long sludge retention time (SRT) configuration such as membrane bioreactor(MBR). The sludge production under long SRT has also shown to be lower than the standard activated sludge model (ASM) prediction. The hydrolysis of “inert” organics can provide the extra carbon source for denitrification. The current modeling approach has not yet included this aspect. In this study, a modified ASM3 was developed to account for the hydrolysis of “inert” organics and subsequent effect on the denitrification process under long SRT.

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