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Record nummer 1788801
Titel artikel Nutrient removal by NF and RO membranes in a decentralized sanitation system
Auteur(s) Voorthuizen, E.M. van ; Zwijnenburg, A. ; Wessling, M.
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer 39(2005)15
Paginering 3657 - 3667
Annotatie(s) 31 refs
Online full text
Trefwoorden (cab) stikstof / fosfaten / verwijdering / afvalwaterbehandeling / scheiding / filtratie / omgekeerde osmose / membranen / anaërobe behandeling / nederland / afvalwater / verzamelen
Rubrieken Afvalwaterbehandeling
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Decentralized treatment of domestic wastewater offers the possibility of water and nutrient reuse. In a decentralized sanitation system the household wastewater streams are separated in a large diluted stream (gray water) and a small and concentrated stream (black water) containing important nutrients like ammonium and phosphate. Nanofiltration (NF) and reverse osmosis (RO) membranes might be used to recover the nutrients from anaerobically treated black water. The permeate might be used in a water reuse scheme. In case of water reuse the produced permeate should meet guidelines for potable water or meet new guidelines which might be applied in the future for intermediate quality of water, for example toilet flushwater; when this is not possible the permeate should meet guidelines for discharge. The most stringent guidelines apply for ammonium and phosphate. The focus of this paper is to test commercially available NF and RO membranes to remove nutrients from anaerobically treated black water in order to meet the Dutch guidelines. A large number of commercial tubular, capillary and flat sheet NF and RO membranes was tested on laboratory scale on their performance to meet the Dutch guidelines for ammonium and phosphate. The ammonium and phosphate concentrations used were based on the effluent composition of anaerobically treated black water. Ammonium and phosphate rejection were both measured in synthetic single salt and multi-ion mixtures and in anaerobic effluent
Betrokken instanties Universiteit Twente, Faculteit T&M, Sectie Waterhuishouding en Milieu
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