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Erschienen in:
2013 | OriginalPaper | Buchkapitel
37. Clean Technology for Volatile Organic Compound Removal from Wastewater
verfasst von : Filiz Ugur Nigiz, Nilufer Durmaz Hilmioglu
Erschienen in: Causes, Impacts and Solutions to Global Warming
Verlag: Springer New York
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Abstract
Volatile organic compounds (VOCs) are the main contaminants in industrial wastewater. It is well known that the presence of these compounds in water—even if they are at low concentration—causes a carcinogenic effect. At industrial scale, removal of these compounds is possible commercially. Membrane-based pervaporation (PV) promises to be clean energy system when it is accompanied with the membrane which has high affinity to VOCs. Compared to the other methods, PV offers some advantages. It is energy intensive, cost effective, clean, and modular technology. In this work, pristine and 20 wt.% and 30 % of ZSM-5-filled zeolite-loaded composite polydimethylsiloxane membranes are prepared and they are employed in pervaporation process to separate toluene from toluene–water mixtures. PV performance is evaluated as a function of flux and enrichment factor. ZSM-5 zeolite is selected as inorganic particle due to the highly hydrophobic characteristic. Pervaporation experiments are carried out at room temperature.