Processing of the liquid fraction
Bacterial polyphosphate accumulation in EBPR systems
Objective
Capture of phosphorus dissolved in a liquid stream by bacteria with the ability to accumulate polyphosphate inside them (PAOs). The separation of the sludge from the liquid stream allows the separation of dissolved phosphorus from the water
Inlets
Waste water and other equivalent liquid streams
Efficiency
80-90% of soluble P
Weaknesses
In systems for treating the liquid fraction of slurry, the process can be masked by processes of chemical precipitation and redissolution under aerobic conditions;
It involves the consumption of organic matter by PAOs;
Sensitive to influent water characteristics and operational parameters such as pH, temperature, AGV content, cation concentration, dissolved oxygen concentration, hydraulic residence time, solids residence time.
It involves the consumption of organic matter by PAOs;
Sensitive to influent water characteristics and operational parameters such as pH, temperature, AGV content, cation concentration, dissolved oxygen concentration, hydraulic residence time, solids residence time.
Products
Sludge (with PAOs) that can be separated from wastewater by sedimentation.
Other outlets
treated water
Consumption
Energy: High
Water: Not applicable
Reagents: Not applicable
Investment
Not available
Operation
Not available
Observations
Usually applied in the field of municipal waste water treatment
Combination with other technologies
1. Separation technologies -> Combination with activated sludge or NDN -> Separation technologies;
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TRL - 9
Status Consolidated
Complexity Medium
Information made by:
BETA Tech Center