aeration; bioreactors; bootstrap; mass transfer; membrane; recirculation reactor
Abstract :
[en] Based on airlift configuration, a novel circulating jet-loop submerged membrane bioreactor (JLMBR) adapted to ammonium partial oxidation has been developed. Membrane technology and combined air and water forced circulation are adopted to obtain a high biomass retention time and to achieve a separate control of mixing and aeration. This study is intended to determine how gas-liquid mass transfer is affected by operating conditions. In a first approximation, liquid was assumed to be perfectly mixed. A classical non-steady state clean water test, known as the "gas out-gas in" method, was used to determine the gas-liquid mass transfer coefficient k(L)a. Air and recirculated liquid superficial velocities were gradually increased from 0.013 to 0.019m s(-1) and 0.0056 to 0.011 m s(-1), respectively. Subsequently, the gas-liquid mass transfer coefficient kLa varied from 0.01 to 0.02 s(-1). It appears to be influenced by the combined action of air and recirculated liquid flowrates in the range 0.72-1.03N m(3) h(-1) and 0.30-0.58 m(3) h(-1), respectively, for air and liquid. Correlations are proposed to describe this double influence. Experiments were performed on tap water and a culture medium used for the autotrophic growth of nitrifying bacteria, respectively. Oxygen transfer appeared to be not significantly affected by the mineral salt (0.48 g 1(-1)) encountered in this medium. (c) 2005 Elsevier Ltd. All rights reserved.
Disciplines :
Chemical engineering
Author, co-author :
Kouakou, Edouard
Salmon, Thierry ; Université de Liège - ULiège > Département de chimie appliquée > Département de chimie appliquée
Toye, Dominique ; Université de Liège - ULiège > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques
Marchot, Pierre ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Systèmes polyphasiques
Crine, Michel ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires
Language :
English
Title :
Gas-liquid mass transfer in a circulating jet-loop nitrifying MBR
Publication date :
November 2005
Journal title :
Chemical Engineering Science
ISSN :
0009-2509
eISSN :
1873-4405
Publisher :
Pergamon-Elsevier Science Ltd, Oxford, United Kingdom
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Annis, C., (2004) Statistical Engineering, Bootstrap and Jackknife, , http://www.statisticalingineering.com/bootstrap.htm
ASCE standard no. ANSI/ASCE 2-91 (1992) Measurement of Oxygen Transfer in Clean Water, Second Ed., , American Society of Civil Engineers, New York
Bello, R.A., Robinson, C.W., Moo-Young, M., Prediction of the volumetric mass transfer coefficient in pneumatic contactors (1985) Chemical Engineering Science, 40, pp. 53-58
(2004) Wastewater Treatment Plants - Part 15: Measurement of the Oxygen Transfer in Clean Water in Aeration Tanks of Activated Sludge Plants, , EN 12255-15 European Committee for Standardization
Garrido, J.M., Van Benthum, W.A.J., Van Loosdrecht, M.C.M., Heijnen, J.J., Influence of dissolved oxygen concentration on nitrite accumulation in a biofilm airlift suspension reactor (1997) Biotechnology and Bioengineering, 53, pp. 168-178
Gouveia, E.R., Hokka, C.O., Badino Jr., A.C., The effects of geometry and operational conditions on gas hold-up, liquid circulation and mass transfer in an airlift reactor (2003) Brazilian Journal of Chemical Engineering, 20 (4), pp. 1-17
Hyun, J.K., Jong, H.K., Hyunck, J.O., Chul, S.S., Morphology control of Monascus cells and scale-up of pigment fermentation (2002) Process Biochemistry, 38, pp. 649-655
Ingham, J., Ivring, J.D., Elmar, H., Jiří, E.P., (1994) Chemical Engineering Dynamics, Modelling with PC Simulation, pp. 47-127. , VCH Publishers, New York
Jackson, E., Stenzel, J., Determination of volumetric mass transfer coefficient in a stirred, sparged bioreactor (1997) Scientific/Technical Prized Writing, (1997-1998). , http://www.prizedwriting.ucdavis.edu/past/1997-1998/jackson.html
Jetten, M.S.M., Strous, M., Katinka, T., Van De, P., Jos, S., Udo, G.J.M., Van, D., Kuenen, J.G., The anaerobic oxidation of ammonium (1999) FEMS Microbiology Reviews, 22, pp. 421-437
Lazarova, V., Julien, M., Laurent, D., Jacques, M., A novel circulating bed reactor: Hydrodynamics, mass transfer and nitrification capacity (1997) Chemical Engineering Science, 52 (2122), pp. 3919-3927
Letzel, H.M., Schouten, J.C., Krishna, R., Van Den Bleek, C.M., Gas holdup and mass transfer in bubble column reactors operated at elevated pressure (1999) Chemical Engineering Science, 54, pp. 2237-2246
MacHon, V., Pacek, A.W., Nienow, A.W., Bubble sizes in electrolyte and alcohol solutions in a turbulent stirred vessel (1997) Transactions of Industrial and Chemical Engineering, 75, pp. 339-348
Marrucci, G., Nicodemo, L., Coalescence of gas bubbles in aqueous solutions of inorganic electrolytes (1967) Chemical Engineering Science, 22, pp. 1257-1265
Masoud, A.J., Morteza, S., Farzabeh, V., Babak, B., Hydrodynamic and mass transfer characterization of a down flow jet loop bioreactor (2001) Biochemical Engineering Journal, 8, pp. 241-250
Merchuk, J.C., Ladwa, N., Cameron, A., Bulmer, M., Pickett, A., Concentric-tube airlift reactors: Effects of geometrical design on performance (1994) A.I.Ch.E. Journal, 40 (7), pp. 1105-1117
Michael, L.H., Measurement of dissolved oxygen (1978) Chemical Analysis, 49, pp. 71-123. , Elving, P.J., Winefordner, J.D. (Eds.) Chapter 5
Nordkvist, M., Grotkjaer, T., Jan, S.H., John, V., Applying rotary jet heads for mixing and mass transfer in a forced recirculation tank reactor system (2003) Chemical Engineering Science, 58, pp. 3877-3890
Onken, U., Weiland, P., (1983) Advances in Biotechnological Processes, 1, pp. 67-95. , Mizrahi, A., van Werzel, L., Alan R. Liss (Eds.) New York
Pollice, A., Valter, T., Carmela, L., Influence of aeration and sludge retention time on ammonium oxidation to nitrite and nitrate (2002) Water Research, 36, pp. 2541-2546
Popovic, M., Robinson, C.W., Estimation of some important design parameters for non-Newtonian liquids in pneumatically-agited fermentors (1984) Proceeding of the 34th Canadian Chemical Engineering Conference, pp. 258-263. , Quebec, 30th September-3rd October
Rapachi, B., (1994) Une Introduction Au Bootstrap, pp. 1-70. , Centre Interuniversitaire de calcul de Grenoble. France
Rudy, P., Utilisation du Bootstrap pour les problèmes statistiques liés à l'estimation des paramètres (2002) Biotechnology Agronomy Society and Environment, 6 (3), pp. 143-153
Strous, M., Van Gerven, E., Kuenen, J.G., Jetten, M., Effects of aerobic and microaerobic conditions on anaerobic ammonium-oxidizing (Anamox) sludge (1997) Applied and Environmental Microbiology, 6 (6), pp. 2446-2448
Van't Riet, K., Tramper, J., (1991) Basic Bioreactor Design, , Marcel Dekker New York
Velan, M., Ramanujam, T.K., Gas-liquid mass transfer in a down flow jet loop reactor (1992) Chemical Engineering Science, 47 (9-11), pp. 2871-2876
Zlokarnik, M., Sorption characteristics for gas-liquid contacting in mixing vessels (1978) Advances in Biochemical Engineering, 8, pp. 133-151
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.