Coagulation of Natural Organic Matters Using Aluminum Tridecamer (Al13) with Counter IonsYa-Fan Lin, Duu-Jong Lee
ABSTRACT Coagulation of natural organic matters (NOM) using coagulants is an efficient drinking water treatment process. Polyaluminum chloride (PACl) is a commonly adopted coagulant with aluminum tridecamer ([AlO4Al12(OH)24(H2O)12]Cl7, Al13) as an important hydrolysed intermediate. This paper investigated the effects of anions on coagulation of NOM with purified Al13 with sodium salts as counter ions.
Keywords: Al13; humic acids; anions; stability; coagulation
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