SUVA (L/mg∙m) | NOM composition | UV absorbance | Coagulation | Potential TOC removal |
<2 | Mostly hydrophilic* and low molecular weight compounds | Low | NOM has little impact on coagulant injection (i.e., mainly non-coagulable NOM) | 0% - 40%; higher end for waters with high TOC |
2-4 | Mixture of hydrophilic and hydrophobic compounds; mixture of molecular weights | Medium | NOM impacts coagulant injection | 40% - 60%; higher end for waters with high TOC |
>4 | Mostly hydrophobic and high molecular weight compounds | High | NOM controls coagulant injection | 60% - 80%; higher end for waters with high TOC |