TY - GEN
T1 - Stoichiometric removal of disinfection byproduct precursors by ion exchange
AU - Boyer, Treavor H.
AU - Singer, Philip C.
AU - Aiken, George R.
PY - 2007/12/1
Y1 - 2007/12/1
N2 - The objective of this research was to elucidate the interactions among anion exchange resins, dissolved organic carbon (DOC), and inorganic anions. Model waters containing well-characterized natural organic matter (NOM) extracts were used in all experiments. The NOM extracts were isolated from three sources, and included transphilic and hydrophobic acids. The charge density of the NOM extracts, obtained by potentiometric titration, was used to perform charge balance analyses for ion exchange reactions involving DOC, bicarbonate, and chloride. Five anion exchange resins, including a magnetic ion exchange (MIEX) resin were evaluated. For all NOM extracts and anion exchange resins, the results clearly show the stoichiometric exchange of DOC and bicarbonate for chloride.
AB - The objective of this research was to elucidate the interactions among anion exchange resins, dissolved organic carbon (DOC), and inorganic anions. Model waters containing well-characterized natural organic matter (NOM) extracts were used in all experiments. The NOM extracts were isolated from three sources, and included transphilic and hydrophobic acids. The charge density of the NOM extracts, obtained by potentiometric titration, was used to perform charge balance analyses for ion exchange reactions involving DOC, bicarbonate, and chloride. Five anion exchange resins, including a magnetic ion exchange (MIEX) resin were evaluated. For all NOM extracts and anion exchange resins, the results clearly show the stoichiometric exchange of DOC and bicarbonate for chloride.
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M3 - Conference contribution
AN - SCOPUS:84871581731
SN - 9781605600499
T3 - American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality
SP - 3856
EP - 3864
BT - American Water Works Association - Water Quality Technology Conference and Exposition 2007
T2 - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality
Y2 - 4 November 2007 through 8 November 2007
ER -