Processing of the liquid fraction
Electrodialysis
Objective
Transport of ionic forms (anions or cations) through an exchange membrane (anionic or cationic) under the influence of an electric potential difference
Inlets
Liquid streams rich in anions (PO43-) and cations (NH4+, K+)
Efficiency
Not available
Weaknesses
Accumulation of heavy metals in the catholyte;
It requires a precipitation stage with the addition of reagents to make possible the recovery of nutrients;
The recovery of N is limited by the presence of other competing ions (K+, Na+);
It requires a precipitation stage with the addition of reagents to make possible the recovery of nutrients;
The recovery of N is limited by the presence of other competing ions (K+, Na+);
Products
Concentrated solutions of anions or cations
Other outlets
-
Consumption
Energy: Medium
Water: Not applicable
Reagents: Not applicable
Investment
Not available
Operation
Not available
Observations
-
Combination with other technologies
1. Anaerobic digestion -> Separation technologies -> Membrane filtration -> Electrodialysis;
2, Separation technologies -> NDN -> Electrodialysis;
2, Separation technologies -> NDN -> Electrodialysis;
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TRL - 5
Status Emergent
Complexity High
Information made by:
BETA Tech Center