Removal of inorganic charged micropollutants from drinking water supplies by hybrid ion exchange membrane processes

Desalination ◽  
2008 ◽  
Vol 223 (1-3) ◽  
pp. 85-90 ◽  
Author(s):  
Svetlozar Velizarov ◽  
Cristina Matos ◽  
Adrian Oehmen ◽  
Susana Serra ◽  
Maria Reis ◽  
...  
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Water Supplies ◽  
Membrane Processes ◽  
Exchange Membrane

Removal of heavy metals from drinking water supplies through the ion exchange membrane bioreactor

Desalination ◽  
2006 ◽  
Vol 199 (1-3) ◽  
pp. 405-407 ◽  
Author(s):  
Adrian Oehmen ◽  
Rui Viegas ◽  
Svetlozar Velizarov ◽  
Maria A.M. Reis ◽  
João G. Crespo
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Water Supplies ◽  
Removal Of Heavy Metals ◽  
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.

Ion exchange membrane textile bioreactor as a new alternative for drinking water denitrification

2014 ◽  
Vol 98 (11) ◽  
pp. 5227-5239
Author(s):  
Dalila Berdous ◽  
Djamal-Eddine Akretche ◽  
Ahmed Abderahmani ◽  
Sakina Berdous ◽  
Rima Meknaci
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Exchange Membrane

Simultaneous removal of perchlorate and nitrate from drinking water using the ion exchange membrane bioreactor concept

2006 ◽  
Vol 40 (2) ◽  
pp. 231-240 ◽  
Author(s):  
Cristina T. Matos ◽  
Svetlozar Velizarov ◽  
João G. Crespo ◽  
Maria A.M. Reis
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Membrane Bioreactor ◽  
Ion Exchange Membrane ◽  
Simultaneous Removal ◽  
Exchange Membrane
Sign in / Sign up

Export Citation Format

Share Document