A parsimonious Langmuir-Freundlich loading-response framework for sonochemical degradation of nonvolatile organic contaminants: Model comparison, validation, and identifiability☆

Description

Hamdaoui published in twenty twenty-six a modeling study of sound-driven breakdown of pollutants in water. Ultrasound creates tiny collapsing bubbles that generate strong oxidants. The author models how contaminant loading near those bubbles governs breakdown speed. Two chemically different pollutants served as test cases. Experiments varied starting concentration across a wide range. Breakdown sped up at first with more pollutant, then removal efficiency fell. A four-parameter version of the model fit all profiles for each compound.

Validation that held out whole concentrations still predicted well. Simpler models sometimes matched or beat the full one, the author notes frankly. Fitted values are best read as condition-specific descriptors, not direct physical measures. The framework is offered as a tool for interpolation and timing within tested settings. Other reactors or waters would need fresh calibration.

Catalog record

Source: https://europepmc.org/articles/PMC13578628