Nitrate removal from natural water by coupling adsorption and Donnan dialysis

A hybrid adsorption/Donnan dialysis (DD) process for nitrate removal using PUROLITE A520E resin as an adsorbent was investigated in this work. PUROLITE resin was introduced into the DD process due to its good selectivity adsorption for nitrate and widespread availability. This study was conducted in...

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Bibliographic Details
Published in:Water science & technology. Water supply 2017-05, Vol.17 (3), p.771-779
Main Authors: Turki, Thouraya, Ben Amor, Mohamed
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Aqueous solutions
Biofilms
Capacity
Coupling
Desalination
Dialysis
Drinking water
Electrolytes
Environmental impact
Flow velocity
Fluorides
Hemodialysis
Ion exchange
Membrane separation
Nitrate removal
Nitrates
Nutrient removal
Removal
Selectivity
Water treatment
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Summary:A hybrid adsorption/Donnan dialysis (DD) process for nitrate removal using PUROLITE A520E resin as an adsorbent was investigated in this work. PUROLITE resin was introduced into the DD process due to its good selectivity adsorption for nitrate and widespread availability. This study was conducted in order to benefit from each process, and it was an original and new combination. The retention efficiency of nitrate was discussed by considering the factors of adsorbent mass, nature of the receiver electrolyte and flow rate. The coupling was a solution to improve the resin mass and the amount of nitrate removed. The coupling was successfully performed, with a nitrate removal capacity of about 7 mg/g.
ISSN:1606-9749
1607-0798
DOI:10.2166/ws.2016.169