
ST-W
ST-W
Liquid streams with high concentrations of ammoniacal nitrogen represent a challenge in wastewater treatment. Biological removal requires high carbon and oxygen demands, increasing energy consumption and operating costs. As an alternative, ST-W stripping columns promote ammonia removal via physicochemical means, with pH and temperature control for the conversion of ammonium (NH₄⁺) into free ammonia (NH₃). Their design allows operation with high concentrations of suspended solids (TSS), making them ideal for slurry and digestate treatment. Their modular configuration allows for capacity expansion as needed.
Applications
- Food industry, landfills
Advantages
- Applicable to streams with high ammonia loads.
- Operation with high concentrations of suspended solids
- Ammonia removal by physicochemical means (stripping)
- Independence from external carbon sources
- Reduction of oxygen demand in downstream biological treatment
- Modular and scalable configuration
- Possibility of ammonia recovery in a later stage (absorption)
- Operation with high concentrations of suspended solids
- Ammonia removal by physicochemical means (stripping)
- Independence from external carbon sources
- Reduction of oxygen demand in downstream biological treatment
- Modular and scalable configuration
- Possibility of ammonia recovery in a later stage (absorption)
Benefits
Lower concentrations of ammoniacal nitrogen in liquid streams.
Significant reduction in operational costs (energy and chemical inputs)
- Reduced need for added external carbon for oxidation via biological pathways.
- Relief of the burden on biological treatment
- Ease of expansion as flow or load increases
- Reduction of operational risks associated with biological hazards.
- Reducing environmental impact and eutrophication of water bodies.
Significant reduction in operational costs (energy and chemical inputs)
- Reduced need for added external carbon for oxidation via biological pathways.
- Relief of the burden on biological treatment
- Ease of expansion as flow or load increases
- Reduction of operational risks associated with biological hazards.
- Reducing environmental impact and eutrophication of water bodies.