University of Limerick
Browse
Ranade_2020_Scale.pdf (1.3 MB)

Scale-up of vortex based hydrodynamic cavitation devices: a case of degradation of di-chloro aniline in water

Download (1.3 MB)
journal contribution
posted on 2024-07-05, 14:37 authored by Vivek RanadeVivek Ranade, Varaha Prasad Sarvothaman, Alister Simpson, Sanjay Nagarajan

Hydrodynamic cavitation (HC) is being increasingly used in a wide range of applications. Unlike ultrasonic cavitation, HC is scalable and has been used at large scale industrial applications. However, no information about influence of scale on performance of HC is available in the open literature. In this work, we present for the first time, experimental data on use of HC for degradation of complex organic pollutants in water on four different scales (~ 200 times scale-up in terms of capacity). Vortex based HC devices offer various advantages like early inception, high cavitational yield and significantly lower propensity to clogging and erosion. We have used vortex based HC devices in this work. 2,4 dichloroaniline (DCA) – an aromatic compound with multiple functional groups was considered as a model pollutant. Degradation of DCA in water was performed using vortex-based HC devices with characteristic throat dimension, dt as 3, 6, 12 and 38 mm with scale-up of almost 200 time based on the flow rates (1.3 to 247 LPM). Considering the experimental constraints on operating the largest scale HC device, the experimental data is presented here at only one value of pressure drop across HC device (280 kPa). A previously used per-pass degradation model was extended to describe the experimental data for the pollutant used in this study and a generalised form is presented. The degradation performance was found to decrease with increase in the scale and then plateaus. Appropriate correlation was developed based on the experimental data. The developed approach and presented results provide a sound basis and a data set for further development of comprehensive multi-scale modelling of HC devices.

Funding

Newton Bhabha Industrial Waste: Valorising Waste from Sugar Cane Industries via Innovations in Pretreatment, Biotransformation and Intensification

Department for Business, Energy and Industrial Strategy

Find out more...

History

Publication

Ultrasonics Sonochemistry, 2020, 70, 105295

Publisher

Elsevier

Rights

This is the author’s version of a work that was accepted for publication in Ultrasonics Sonochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Ultrasonics Sonochemistry, 2020, 70, 105295, ttps://doi.org/10.1016/j.ultsonch.2020.105295

Also affiliated with

  • Bernal Institute

Usage metrics

    University of Limerick

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC