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https://idr.nitk.ac.in/jspui/handle/123456789/16586
Title: | Residence Time Distribution Studies in a Modified Rotating Packed Disc Contactor: Mathematical Modeling and Validation |
Authors: | Kalnake Rohit P.; Murthy D. V. R.; Achar Akshay; Raval Keyur |
Issue Date: | 2020 |
Citation: | INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Vol. 18 , 4 , p. - |
Abstract: | A modified rotating packed disc contactor (RPDC) with the maximum working volume of 65 liter is designed for biological waste water treatment. A hollow disc with radial vanes mounted on the disc was a modified design of this contactor. Stimulus-response experiments were conducted in the contactor to understand liquid mixing behavior under different operating conditions. The recycle stream was also used in the operation of the contactor. Experiments were conducted for different number of discs, rotational speeds and recycle ratios. The disc design and recycle ratio had marked influence on the mixing behavior. An increase in disc rotation and recycle ratio produced a well-mixed flow behavior. Moreover, the surface area available in the RPDC was about 4 times more than the surface area available in a standard rotating biological contactor (RBC) operating at similar conditions. A mathematical model was developed for the flow behavior under recycle and a good agreement was found between the model and experimental results. |
URI: | https://doi.org/10.1515/ijcre-2019-0161 http://idr.nitk.ac.in/jspui/handle/123456789/16586 |
Appears in Collections: | 1. Journal Articles |
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