Removal of THM precursors by GAC: Ankara case study

摘要

The effectiveness of granular activated carbon (GAC) adsorption for the removal of natural organic matter and trihalomethanes from Ivedik Water Treatment Plant of Ankara City is investigated. Freundlich Isotherm constants K and n were determined as 17.66, respectively. Bench-scale GAC columns were run with empty bed contact times (EBCT) varying from 0.40 to 2.67 min to evaluate adsorption performance. 50/100 exhaustion values were used for comparison. The treated volumes of water increased with EBCT, showing a linear increase in GAC service life.