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Clean Technology for Volatile Organic Compound Removal from Wastewater

  • Filiz Ugur NigizEmail author
  • Nilufer Durmaz Hilmioglu
Chapter

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.

Keywords

Pervaporation VOC removal Toluene removal ZSM-5 zeolite Polydimethylsiloxane 

Nomenclature

A

Effective area of the membrane

J

Flux

Sd

Degree of swelling

t

Time

Wd

Weights of dry membrane

Wp

Total permeate weights of mixtures

Ws

Weights of swollen membrane

Xa

Concentration of the toluene in the feed mixture

Ya

Concentration of the toluene in the permeate mixture

Greek Symbols

β

Enrichment factor

Acronyms

PV

Pervaporation

DCP

Dicumylperoxide

EPDM

Ethylene propylene diene monomer

PDMS

Polydimethylsiloxane

PEBA

Polyether-block-polyamide

PEG

Polyethyleneglycol

PI

Polyimide

PTFE

Polytetrafluoroethylene

PTMSP

Polytrimethylsilylpropyne

PVC

Polyvinylchloride

UV

Ultraviolet–visible

VOC

Volatile organic compound

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Chemical Engineering DepartmentKocaeli UniversityKocaeliTurkey

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