Influences of operating conditions on continuous lactulose synthesis in an enzymatic membrane reactor system: A basis prior to long-term operation

2015 ◽  
Vol 203 ◽  
pp. 89-96 ◽  
Author(s):  
Azis Boing Sitanggang ◽  
Anja Drews ◽  
Matthias Kraume
Keyword(s):  
Membrane Reactor ◽  
Operating Conditions ◽  
Reactor System ◽  
Term Operation ◽  
System A ◽  
Enzymatic Membrane Reactor ◽  
Enzymatic Membrane

Development of a multichannel monolith large-scale enzymatic membrane and application in an immobilized enzymatic membrane reactor

2014 ◽  
Vol 455 ◽  
pp. 330-340 ◽  
Author(s):  
Sawsen Ben Ameur ◽  
Cristiana Luminiţa Gîjiu ◽  
Marie-Pierre Belleville ◽  
José Sanchez ◽  
Delphine Paolucci-Jeanjean
Keyword(s):  
Membrane Reactor ◽  
Large Scale ◽  
Enzymatic Membrane Reactor ◽  
Enzymatic Membrane

Investigation of long-term operation and biomass activity in a membrane bioreactor system

2011 ◽  
Vol 63 (9) ◽  
pp. 1906-1912 ◽  
Author(s):  
Simos Malamis ◽  
Andreas Andreadakis ◽  
Daniel Mamais ◽  
Constantinos Noutsopoulos
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Extracellular Polymeric Substances ◽  
Operating Conditions ◽  
Term Operation ◽  
Solids Retention ◽  
Biomass Activity ◽  
Long Term Performance ◽  
Term Performance

The aim of this work was to evaluate the long-term performance of a Membrane Bioreactor (MBR) that operated continuously for 2.5 years and to assess membrane fouling and biomass activity under various operating conditions. Furthermore, a method for the characterisation of influent wastewater was developed based on its separation into various fractions. The MBR system operated at the solids retention times (SRT) of 10, 15, 20 and 33 days. The increase of SRT resulted in a decrease of the fouling rate associated with the reduction of extracellular polymeric substances. Moreover, the SRT increase resulted in a significant reduction of the Oxygen Uptake Rate (OUR) due to the lower availability of substrate and in a notable decrease of the maximum OUR since high SRT allowed the development of slower growing microorganisms. Biomass consisted of small flocs due to extensive deflocculation caused by intense aeration. Finally, the method developed for wastewater characterisation is straightforward and less time consuming than the usual method that is employed.

Study of the influence of the hydrodynamic parameters on the performance of an enzymatic membrane reactor

2008 ◽  
Vol 311 (1-2) ◽  
pp. 147-152 ◽  
Author(s):  
Tània Gumí ◽  
Joaquin Fernandez-Delgado Albacete ◽  
Delphine Paolucci-Jeanjean ◽  
Marie-Pierre Belleville ◽  
Gilbert M. Rios
Keyword(s):  
Membrane Reactor ◽  
Hydrodynamic Parameters ◽  
Enzymatic Membrane Reactor ◽  
Enzymatic Membrane
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