Electrodialytic recovery of phosphorus from chemically precipitated sewage sludge ashes

Raimon Parés Viader, Pernille Erland Jensen, Lisbeth M. Ottosen, Jesper Ahrenfeldt, Henrik Hauggaard-Nielsen

Research output: Contribution to conferenceConference abstract for conferenceResearch


Phosphorus scarcity requires improved recover and reuse of urban sources; the recycling of this nutrient from sewage sludge has become increasingly important in the last years. Using an innovative electrodialytic process, the present study shows the potential for P separation from Fe and Al precipitated sewage sludge ash using this technique, with a recovery rate of around 70%. Furthermore, heavy metals were removed from the phosphorous fraction, producing a pure and safe phosphorus source in the end
Original languageEnglish
Publication date2015
Publication statusPublished - 2015
Event1st IWA Resource Recovery Conference: Bridging towards the chemical industry - Ghent, Belgium
Duration: 30 Aug 20152 Sep 2015


Conference1st IWA Resource Recovery Conference
Internet address

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