Efficient nitrate and perchlorate removal from aqueous solution via a novel electro-dialysis ion-exchange membrane bioreactor

2021 ◽  
pp. 132952
Author(s):  
Jing Chen ◽  
Mengqi Gu ◽  
Yifang Zhou ◽  
Dongjin Wan ◽  
Qiaochong He ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Perchlorate Removal ◽  
Exchange Membrane

Kinetics of nitrate and perchlorate removal and biofilm stratification in an ion exchange membrane bioreactor

2012 ◽  
Vol 46 (14) ◽  
pp. 4556-4568 ◽  
Author(s):  
Ana R. Ricardo ◽  
Gilda Carvalho ◽  
Svetlozar Velizarov ◽  
João G. Crespo ◽  
Maria A.M. Reis
Keyword(s):  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Perchlorate Removal ◽  
Exchange Membrane ◽  
Kinetics Of

Validation of the ion-exchange membrane bioreactor concept in a plate-and-frame module configuration

2012 ◽  
Vol 47 (12) ◽  
pp. 1832-1838 ◽  
Author(s):  
Ana R. Ricardo ◽  
Svetlozar Velizarov ◽  
João G. Crespo ◽  
Maria A.M. Reis
Keyword(s):  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Exchange Membrane

Removal of bromate, perchlorate and nitrate from drinking water in an ion exchange membrane bioreactor

2005 ◽  
Vol 5 (5) ◽  
pp. 9-14 ◽  
Author(s):  
C.T. Matos ◽  
S. Velizarov ◽  
J.G. Crespo ◽  
M.A.M. Reis
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Microbial Culture ◽  
Experimental Conditions ◽  
Biological Reduction ◽  
Permselective Membrane ◽  
Donnan Dialysis ◽  
Exchange Membrane

The presence of anionic micropollutants, such as bromate, perchlorate and nitrate, in drinking water supplies represents a risk for public health. This work evaluates the applicability of the ion exchange membrane bioreactor (IEMB) concept for their removal. The IEMB concept combines the transport of anionic pollutants, through a dense mono-anion permselective membrane, with their simultaneous biodegradation to harmless products by a suitable microbial culture in a separated biocompartment. The transport of the pollutant counter-ions (anions) is governed by the Donnan equilibrium principle and, therefore, it is possible to enhance it by using a more concentrated driving counter-ion (e.g. chloride) added to the biocompartment. The IEMB process proved to selectively remove nitrate and perchlorate to concentrations below the recommended levels of 4 ppb for ClO4− and 25 ppm of NO3−, from a model polluted stream containing 100 ppb of ClO4− and 60 ppm of NO3−. Transport studies, made under Donnan dialysis conditions, showed bromate fluxes comparable to those obtained for nitrate under similar experimental conditions. However, the rate of biological reduction of bromate was about one order of magnitude slower than that of nitrate.

Mercury removal from water streams through the ion exchange membrane bioreactor concept

2014 ◽  
Vol 264 ◽  
pp. 65-70 ◽  
Author(s):  
Adrian Oehmen ◽  
Dario Vergel ◽  
Joana Fradinho ◽  
Maria A.M. Reis ◽  
João G. Crespo ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Mercury Removal ◽  
Exchange Membrane
Sign in / Sign up

Export Citation Format

Share Document