Process optimization and CFD simulation in external loop airlift reactor and sectionalized external loop airlift for application of wastewater treatment-Reference-Cited by-同舟云学术

Process optimization and CFD simulation in external loop airlift reactor and sectionalized external loop airlift for application of wastewater treatment

Published:2022-01-20 Issue:8 Volume:20 Page:887-902
ISSN:1542-6580
Container-title:International Journal of Chemical Reactor Engineering
language:en
Short-container-title:

Author:

Teli Shivanand M.¹²,Mathpati Channamallikarjun¹

Affiliation:

1. Department of Chemical Engineering , Institute of Chemical Technology , Mumbai , India

2. Department of Chemical Engineering , Gharda Institute of Technology , Khed , Ratnagiri , India

Abstract

Abstract The industrial wastewater treatment is carried out in an external loop airlift reactor (EL-ALR) and sectionalized EL-ALR. The airflow rate is optimized in EL-ALR and sectionalized EL-ALR for better degradation of wastewater. The 74% degradation is obtained in sectionalized EL-ALR as compared to EL-ALR for continuous aeration up to 32 h. For higher superficial gas velocity (U G ) percentage degradation is decreased due to shear stress on microorganisms. The extent of degradation is obtained 77 and 80% for the effect of hydrogen peroxide (H2O2) and combination of H2O2 and Fenton reagent in an EL-ALR. The computational fluid dynamic (CFD) simulation validated with experimental results of gas hold-up and liquid circulation velocity compared in EL-ALR sectionalized EL-ALR over a broad range of superficial gas velocity 0.0024 ≤ U G ≤ 0.016 m/s. The comparison of CFD and experimental values of gas hold-up and liquid circulation velocity are in good agreement.

Funder

Gharda Institute of Technology

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering

Link

https://www.degruyter.com/document/doi/10.1515/ijcre-2021-0146/pdf

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