ADSORPS?YON VE ?YON DE????M? PROSESLER?YLE ??ME SULARINDAN DO?AL ORGAN?K MADDE G?DER?M?

摘要

As well as its negative effects on water quality, natural organic matter (NOM), a complexheterogeneous mixture of organic substances, poses a significant health risk fo humans by creatingdisinfection by-products such as trihalomethane (THM) and haloacetic acid (HAA) as a result of itsreaction with chlorine. Furthermore, the large variation in NOM concentration and composition make itdifficult to treat the NOM in water treatment plants. Various treatment method for NOM removal fromdrinking water have been investigated so far. Among these methods, adsorption is one of the most studiedand applied processes for NOM removal. Ion exchange has also emerged as an alternativeprocess toadsorption for NOM removal. NOMs most of which are negatively charged fractions can be removedwith anion exchange resins.In this study, the suggested information by various researchers about the performance of adsorption andion exchange processes used for NOM removal from drinking water was complied and presented. In this context, the used diverse adsorbents in NOM removal, which are original and the surfaces of which weremodified with different methods, were examined and NOM removal efficiencies of these adsorbents andthe factors affecting their removal were discussed. In addition, the use of ion exchange resins and theeffect of the resin structure on performance were discussed in the study. Different ion exchangeprocesses, such as magnetic ion exchanger (MIEX), fluidized bed ion exchanger (FIX) and suspended ionexchanger (SIX?), which are specifically designed for there moval of dissolved organic carbon (DOC),were mentioned, as well.