پديد آورندگان :
Tobiason J. K نويسنده , Nabi Bidhendi Gh. R. نويسنده , Torabian A. نويسنده , Ghadimkhani A. A. نويسنده , Etemadi H نويسنده
چكيده لاتين :
In this study,NF membrane was used for surface water treatment. The rejection of
organic material, measured as Total organic carbon (TOC), by Nanofiltration was examined. The
effectsof application ofpre-ozonation and pre-chlorination on TOCremovalare discussedand their
performances are compared with the performances ofNanofiltraion system without pretreatment
process. In NF, natural organic rejection is high and no pre-treatment are required. Coagulation
targetslarge hydrophobic organicswhichfoulNF membranes byprecipitation and gel layerformation.
The results showedthat TOC removalin Preozonation-coagulation was higher than prechlorinationCoagulation.
In addition pretreatment increases Nanofiltration efficiency.
