TY  - THES
T1  - Study of hybrid membrane processes for separation of heavy metals from water and wastewater
A1  - Erwe,Torsten
Y1  - 2010/08/06
N2  - The removal of heavy metals from industrial waste water or from groundwater is a big challenge for the industry. It';s not possible to discharge industrial wastewater contaminated with heavy metals directly into rivers, water reservoirs or into the sea, because the heavy metals present a considerable danger to the ecosystem. Indirect discharge of this wastewater into municipal sewage treatment plants may have a major effect on the activated sludge and hinder the efficiency of the plants. The state-of-the-art processes, such as chemical precipitation, ion-exchange bed filtration, adsorption bed filtration and membrane processes have numerous shortcomings for treating this type of contaminated water. Furthermore, problems are encountered in metal reuse procedures as well as in the disposal of concentrates or sludge. In the present work the new hybrid membrane processes for separation of heavy metals from water and wastewater with the objective of the re-use of water and metals were studied. The focus of the work was to characterise the used bonding agents and to study the new hybrid processes in bench scale under real industrial conditions for two different applications:
1.	Removal of AsF6- from groundwater using the hybrid process consisting of sorption and micro membrane filtration.
2.	Removal of heavy metals from wastewater of the copper foil production using the hybrid process consisting of sorption, flotation and submerged membranfiltration.

KW  - Abwasserreinigung
KW  - Schwermetall
KW  - Membranverfahren
CY  - Saarbrücken
PB  - Universitäts- und Landesbibliothek
AD  - Postfach 151141, 66041 Saarbrücken
UR  - http://scidok.sulb.uni-saarland.de/volltexte/2010/3222
ER  -