Conference Publication Details
Mandatory Fields
Grace, M.A., Clifford, E., Healy, M.G.
IWA Specialist Conference on Natural Organic Matter in Water
A novel filtration configuration for targeted humic acid removal from drinking waters
Optional Fields
Filtration, drinking water, humic acid, natural organic matter
Malmö, Sweden
Natural organic matter (NOM) has been identified as a precursor to disinfection by-product (DBP) formation in a potable water purification system, and can be measured on site as dissolved organic carbon (DOC). Disinfection by-products are harmful to human health and have been linked to cancer and genetic mutations. To eliminate the potential for DBP formation in the plant, it is necessary to design a treatment system targeting DOC removal prior to disinfection. This study investigates the use of filtration as a mechanism to remove DOC. Based on a bench-scale adsorption study of a variety of media, two filter configurations, each containing layers of novel adsorptive media, were designed to target the removal of DOC. The filters contained a variety of media, including natural materials and industrial waste products. The results of the novel configurations were compared to those from a conventional sand filter (the study control), constructed as per Irish Environmental Protection Agency (EPA) guidelines. With percentage removals as high as 70% in some instances, the new filters, developed in this study, have the potential to remove DOC from drinking water.
Grant Details
Publication Themes
Environment, Marine and Energy