An efficient start-up strategy of a continuous stirred tank bioreactor with biofilm
Authors:
- Szymon Skoneczny,
- Bolesław Tabiś
Abstract
The paper concerns start-up of a continuous stirred tank bioreactor with biofilm for aerobic microbiological degradation of a toxic organic compound. Method for the bioreactor start-up was proposed, which is based on using a proportional controller for the control by flow rate. Numerical simulations were performed using a heterogeneous mathematical model of the bioreactor, which takes into account three phases: gas, liquid and biofilm. It was shown that using the proposed strategy results in obtaining even over 8-fold decrease of time, after which a stationary, low concentration of a toxic compound is obtained. Moreover, it decreases the risk of anoxia of microorganisms related to considerable decrease in dissolved oxygen concentration, which takes place during a standard start-up method. The efficiency of the proposed method was shown on the example of aerobic degradation of phenol for different values of the substrate concentration in the feed stream and for different values of mean residence time of the liquid in the bioreactor.
- Record ID
- CUTb3014604807646279d20720412b86f88
- Publication categories
- ;
- Author
- Journal series
- Chemical Engineering Research & Design, ISSN 0263-8762, e-ISSN 1744-3563
- Issue year
- 2019
- Vol
- 141
- Pages
- 449-454
- Other elements of collation
- schem.; tab.; wykr.; Bibliografia (na s.) - 454; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 141
- Keywords in English
- biofilm, bioreactor, dynamic simulation
- DOI
- DOI:10.1016/j.cherd.2018.11.013 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0263876218305938 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb3014604807646279d20720412b86f88/
- URN
urn:pkr-prod:CUTb3014604807646279d20720412b86f88
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.