| Issue |
E3S Web Conf.
Volume 625, 2025
5th International Conference on Environment Resources and Energy Engineering (ICEREE 2025)
|
|
|---|---|---|
| Article Number | 03011 | |
| Number of page(s) | 7 | |
| Section | Resource Management and Ecosystem Regulation | |
| DOI | https://doi.org/10.1051/e3sconf/202562503011 | |
| Published online | 17 April 2025 | |
Analysis of the influence of HiCS operating conditions on bioflocculation based on grey system theory
1 Shenyang Jianzhu University, 110168 Shenyang Hunnan District, China
2 Liaohe River Basin Water Pollution Control Research Institute, 110168 Shenyang Hunnan District, China
With the advancement of the “dual carbon” policy, the high-load contact stabilization (HiCS) process technology has attracted much attention because of its efficient carbon source capture and carbon redirection capabilities. However, the factors affecting extracellular polymers’ concentration and composition changes are complex, and their mechanism of action and correlation are unclear. This article uses grey relational analysis (GRA) from grey system theory (GST) to analyze the impact of HiCS process operating conditions on biological flocculation. Total EPS concentration, PN/PS ratio, and LB/TB ratio were used as reference sequences, while SRT, ts, tc/ts, DO, and SLR were used as comparison sequences. The results show that the effect of each factor on total EPS concentration was ts > SLR > tc/ts > SRT > DO; the effect on PN/PS ratio was ts > SRT > SLR > tc/ts > DO; and the effect on LB/TB ratio was SLR > ts > SRT > DO. In this paper, the influence of various factors on bio-flocculation-related indicators is expounded, which provides a reference for further optimizing the operating conditions of the flocculant process.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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