Nonlinear differential equations and their application to evaluating the integrated impacts of multiple parameters on the biochemical safety of drinking water

Copyright © 2024. Published by Elsevier Ltd..

The present study aimed to narrow such gaps by applying nonlinear differential equations to biostability in drinking water. Biostability results from the integrated dynamics of nutrients and disinfectants. The linear dynamics of biostability have been well studied, while there remain knowledge gaps concerning nonlinear effects. The nonlinear effects are explained by phase plots for specific scenarios in a drinking water system, including continuous nutrient release, flush exchange with the adjacent environment, periodic pulse disinfection, and periodic biofilm development. The main conclusions are, (1) The correlations between the microbial community and nutrients go through phases of linear, nonlinear, and chaotic dynamics. Disinfection breaks the chaotic phase and returns the system to the linear phase, increasing the microbial growth potential. (2) Post-disinfection after multiple microbial peaks produced via metabolism can increase disinfection efficiency and decrease the risks associated with disinfectant byproduct risks. This can provide guidelines for optimizing the disinfection strategy, according to the long-term water safety target or a short management. Limited disinfection and ultimate disinfection may be more effective and have low chemical risk, facing longer stagnant conditions. (3) Periodic biofilm formation and biofilm detachment increase the possibility of uncertainty in the chaotic phase. For future study, nonlinear differential equation models can accordingly be applied at the molecular and ecological levels to further explore more nonlinear regulation mechanisms.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:355

Enthalten in:

Journal of environmental management - 355(2024) vom: 30. März, Seite 120493

Sprache:

Englisch

Beteiligte Personen:

Chen, Xiao [VerfasserIn]
Wu, Xiao-Nan [VerfasserIn]
Feng, Jing-Chun [VerfasserIn]
Wang, Yi [VerfasserIn]
Zhang, Xiao-Chun [VerfasserIn]
Lin, Yi-Lei [VerfasserIn]
Wang, Bin [VerfasserIn]
Zhang, Si [VerfasserIn]

Links:

Volltext

Themen:

4R7X1O2820
Biological stability
Chemical safety
Chlorine
Disinfectants
Drinking Water
Dynamic process
Journal Article
Nonlinear delay differential equations

Anmerkungen:

Date Completed 25.03.2024

Date Revised 25.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jenvman.2024.120493

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369423704