Predicting the Sonochemical Efficiency for Water Decontamination: An Upscaled Numerical Approach,Chemical Engineering & Technology

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Predicting the Sonochemical Efficiency for Water Decontamination: An Upscaled Numerical Approach
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-12-02 , DOI: 10.1002/ceat.202000284
Kaouther Kerboua _{1,

2} , Oualid Hamdaoui ₃ , Abdulaziz Alghyamah ₃

Affiliation

A numerical modeling approach is presented, predicting the sonochemical efficiency for water decontamination integrally based on microscale activity of a single bubble, coupled to macroscale energetic balance on a batch sonochemical reactor volume. The sonochemical efficiency is axed on the powerful oxidative effect of HO^• radicals on organic substrates. Spatial average values of bubble number densities were estimated at each instant of the acoustic period along a reactor of a hypothetical length λ. As a direct result, the kinetics of the sonochemical emergence of HO^• led to spatial average production rates of 0.251 and 0.299 µmol dm⁻³min⁻¹ under respective frequencies of 20 and 443 kHz, for a defined irradiation time of 50 µs.

中文翻译：

预测水净化的声化学效率：一种放大的数值方法

提出了一种数值建模方法，该方法基于单个气泡的微尺度活动来整体预测水净化的声化学效率，并结合批量声化学反应器体积上的宏观能量平衡。声化学效率因HO ^•自由基在有机基质上的强大氧化作用而降低。沿着假设长度为λ的反应堆，在声学周期的每个瞬间估计气泡数密度的空间平均值。作为直接结果，HO ^•的声化学出现动力学导致空间平均生产率为0.251和0.299 µmol dm ^-3 min ^-1 在20和443 kHz各自的频率下，定义的照射时间为50 µs。

更新日期：2021-01-20

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