Influence of reverse salt flux on ammonium rejection in forward osmosis for nutrients recovery

Mads Koustrup Jørgensen, Katie Charlotte Kedwell, Annika Højgaard Andersen, Cejna Anna Quist-Jensen, Morten Lykkegaard Christensen

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskningpeer review


Forward osmosis has been proposed for concentration of ammonium and phosphate for nutrient recovery, e.g. in digester centrate. However, studies have found low rejection of ammoniacal nitrogen (e.g. ammonium at neutral pH). Ammonium transfer requires transfer of other ions to ensure electroneutrality, e.g. reverse transport of a cation or co-transport of an anion. Therefore, selecting a draw solute with low reverse flux from draw to feed may enhance ammonium rejection. Accordingly, this study will investigate how transfer of ions facilitates the transfer of ammonium, and how draw solutions can be designed to ensure high ammonium rejection.
StatusUdgivet - 2019
BegivenhedEngineering With Membranes - Hotel Skansen, Båstad, Sverige
Varighed: 8 apr. 201910 apr. 2019


KonferenceEngineering With Membranes
LokationHotel Skansen

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