Model construction and operation optimization of an A<sup>2</sup>/O process based on BioWin6.0

XING Chuanhong; WANG Mengyuan; KRISTINA Simon; HU Fujing; ZHANG Yan

doi:10.13205/j.hjgc.202506012

Volume 43 Issue 6

Jun. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(6): 115-126

XING Chuanhong, WANG Mengyuan, KRISTINA Simon, HU Fujing, ZHANG Yan. Model construction and operation optimization of an A2/O process based on BioWin6.0[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(6): 115-126. doi: 10.13205/j.hjgc.202506012

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XING Chuanhong, WANG Mengyuan, KRISTINA Simon, HU Fujing, ZHANG Yan. Model construction and operation optimization of an A²/O process based on BioWin6.0[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(6): 115-126. doi: 10.13205/j.hjgc.202506012

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Model construction and operation optimization of an A²/O process based on BioWin6.0

doi: 10.13205/j.hjgc.202506012

1. School of Ecology & Environment, Zhengzhou University, Zhengzhou 450001, China;
2. Zhengzhou Sewage Purification Co., Ltd., Zhengzhou 450000, China

Received Date: 2023-12-06
Accepted Date: 2024-02-20
Rev Recd Date: 2024-02-02

Abstract

Abstract

The difficulty in real-time regulation of large sewage treatment plants leads to long-term risk of exceeding the pollution emission standards， and process simulation software is urgently needed to guide the standard operation. Taking an A²/O process sewage treatment plant in the north China as the research object， a suitable model was established using BioWin6.0. Simulation-based operational optimization was carried out to meet the requirements of the Class IV specified in standard GB 3838—2002 for surface water， and the recommended operation parameters for the four seasons were obtained through TN （total nitrogen）-prioritized and TP （total phosphorus）-prioritized simulations， respectively. Taking winter as an example， the recommended operation parameters for TN control in winter were verified. The results showed that the three indexes of COD， NH₄⁺-N， and TP were stably superior to the Class IV standard for surface water. It was noteworthy that the simulated effluent TN was reduced by up to 21.2% compared to the original level，while the simulated effluent TP was reduced by up to 15.6%， even better than the Class III standard for surface water. This demonstrates that there is still much room for upgrading the operation of this plant. The recommended operation parameters for the four seasons can provide reference and guidance for large sewage treatment plants to reduce costs and increase efficiency.
- A²/O process,
- BioWin6.0,
- model construction,
- operational optimization,
- simulation validation

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References(18)

References

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