The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study

Nowadays, the microbial production of 1,3-propanediol (1,3-PD) is recognized as preferable to the chemical synthesis. However, finding a technological approach allowing the production of 1,3-PD in the membrane bioreactor (MBR) is a great challenge. In the present study, a ceramic ultrafiltration (UF...

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Autores principales:	Wirginia Tomczak, Ireneusz Grubecki, Marek Gryta
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ceramic membrane fermentation fouling membrane bioreactor design membrane cleaning sodium hydroxide Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/03d59509c93f40fdb1308422ecd0d4d5
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spelling	oai:doaj.org-article:03d59509c93f40fdb1308422ecd0d4d52021-11-25T18:20:05ZThe Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study10.3390/membranes111108872077-0375https://doaj.org/article/03d59509c93f40fdb1308422ecd0d4d52021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/887https://doaj.org/toc/2077-0375Nowadays, the microbial production of 1,3-propanediol (1,3-PD) is recognized as preferable to the chemical synthesis. However, finding a technological approach allowing the production of 1,3-PD in the membrane bioreactor (MBR) is a great challenge. In the present study, a ceramic ultrafiltration (UF) membrane (8 kDa) for treatment of 1,3-PD broths was used. It has been demonstrated that the membrane used provides the stable permeate flux that is necessary to ensure the stability of the fermentation process in MBR technology. It was noticed that the broth pH has a significant impact on both the final 1,3-PD concentration and permeate flux. Moreover, the feasibility of using NaOH for fouling control in the MBR was evaluated. It has been shown that 1% NaOH solution is effective in restoring the initial membrane performance. To the best of our knowledge, this study is the first to shed light onto the possibility of reducing the amount of the alkaline solutions generated during the MBR operation. Indeed, it has been found that 1% NaOH solution can be successfully used several times for both membrane cleaning and to stabilize the broth pH. Finally, based on the results obtained, the technological conceptions of the MBR technology were designed.Wirginia TomczakIreneusz GrubeckiMarek GrytaMDPI AGarticleceramic membranefermentationfoulingmembrane bioreactor designmembrane cleaningsodium hydroxideChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 887, p 887 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ceramic membrane fermentation fouling membrane bioreactor design membrane cleaning sodium hydroxide Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	ceramic membrane fermentation fouling membrane bioreactor design membrane cleaning sodium hydroxide Chemical technology TP1-1185 Chemical engineering TP155-156 Wirginia Tomczak Ireneusz Grubecki Marek Gryta The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study
description	Nowadays, the microbial production of 1,3-propanediol (1,3-PD) is recognized as preferable to the chemical synthesis. However, finding a technological approach allowing the production of 1,3-PD in the membrane bioreactor (MBR) is a great challenge. In the present study, a ceramic ultrafiltration (UF) membrane (8 kDa) for treatment of 1,3-PD broths was used. It has been demonstrated that the membrane used provides the stable permeate flux that is necessary to ensure the stability of the fermentation process in MBR technology. It was noticed that the broth pH has a significant impact on both the final 1,3-PD concentration and permeate flux. Moreover, the feasibility of using NaOH for fouling control in the MBR was evaluated. It has been shown that 1% NaOH solution is effective in restoring the initial membrane performance. To the best of our knowledge, this study is the first to shed light onto the possibility of reducing the amount of the alkaline solutions generated during the MBR operation. Indeed, it has been found that 1% NaOH solution can be successfully used several times for both membrane cleaning and to stabilize the broth pH. Finally, based on the results obtained, the technological conceptions of the MBR technology were designed.
format	article
author	Wirginia Tomczak Ireneusz Grubecki Marek Gryta
author_facet	Wirginia Tomczak Ireneusz Grubecki Marek Gryta
author_sort	Wirginia Tomczak
title	The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study
title_short	The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study
title_full	The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study
title_fullStr	The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study
title_full_unstemmed	The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study
title_sort	use of naoh solutions for fouling control in a membrane bioreactor: a feasibility study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/03d59509c93f40fdb1308422ecd0d4d5
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The Use of NaOH Solutions for Fouling Control in a Membrane Bioreactor: A Feasibility Study

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