TY - JOUR ID - 203 TI - Preozonation and Prechlorination Effects on TOC Removal by Nanofiltration in Water Treatment JO - International Journal of Environmental Research JA - IJER LA - en SN - 1735-6865 Y1 - 2008 PY - 2008 VL - 2 IS - 3 SP - 269 EP - 274 KW - Water treatment KW - Nanofiltration KW - Preozonation KW - Prechlorination KW - Total Organic Carbon removal DO - 10.22059/ijer.2010.203 N2 - 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 effects of application of pre-ozonation and pre-chlorination on TOC removal are discussed and their performances are compared with the performances of Nanofiltraion system without pretreatment process. In NF, natural organic rejection is high and no pre-treatment are required. Coagulation targets large hydrophobic organics which foul NF membranes by precipitation and gel layer formation. The results showed that TOC removal in Preozonation-coagulation was higher than prechlorination-Coagulation. In addition pretreatment increases Nanofiltration efficiency. UR - https://ijer.ut.ac.ir/article_203.html L1 - https://ijer.ut.ac.ir/article_203_29df192106171b8d7db12546005a200c.pdf ER -