Three commercial activated carbons were tested to establish the adsorption capacity of organic micropollutants. The model compounds, herbicide atrazine (ATZ), the analgesic diclofenac (DCL) and the antimicrobial compound triclosan (TCA), were chosen because they have (1) similar molecular size, (2) different KOW and (3) ATZ and TCA are weak acids, while DCL is a weak base. Adsorption tests included single solute isotherms of the model compounds and multiple solute isotherms in which the adsorption competition between ATZ, DCL and TCA was tested. Experiments were done in the presence of co-adsorbing and preloaded NOM present in natural Bio-Bio river water. By screening tests, the presence of DCL and TCA in the Bio-Bio River was found. Bio-Bio River provides the principal source of drinking water for Concepci�n city. Each carbon was characterized by point of zero charge (pHzc), BET Surface area, micropore and mesopore volume, and micropore size distribution. Acknowledgments: FONDECYT 1110606

Removal of extensive use trace organic contaminants from Bio-Bio River (Chile) water by activated carbon

245th National Meeting (2013)

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