Processing of the liquid fraction
Bioelectrochemical processes
Objective
Processes that use sacrificial anodes and stable anodes to promote the chemical precipitation of compounds of interest by using a microbial fuel cell (MFC) to generate the energy required by the process
Inlets
Liquid streams rich in N-ammoniacal and/or P-orthophosphoric
Efficiency
Although N and P recovery efficiencies above 90% have been reported, these percentages will depend significantly on the type and surface of the membrane and electrode used and the characteristics of the treated wastewater
Weaknesses
The process is sensitive to pH, toxicity events and the applied organic load. So, the process can be unstable in the face of fluctuating loads, in which case the application of electrochemical methods is more interesting;
Products
In processes with separate ammonia adsorption, if sulfuric acid is used, ammonium sulfate salts will be produced. In precipitation processes, phosphoric salts will form
Other outlets
Treated liquid effluent
Consumption
Energy: Low
Water: Not applicable
Reagents: Not applicable
Investment
Not available
Operation
Not available
Observations
-
Combination with other technologies
1. Separation technologies -> Bioelectrochemistry
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TRL - 5
Status Emergent
Complexity High
Information made by:
BETA Tech Center