ALMA BioFil Compact
Pre-treatment reverse osmosis,
Process water, vapor condensates
Your contacts for biofiltration systems
Maksim Neubauer
Head of International Project Development
References biological filtration
Dairy Southern Germany, ALMA BioFil Compact
Vapor water treatment using biofiltration with a capacity of 600m3/d for a dairy in southern Germany. The vapor condensate is produced during the production of whey and lactose powder.
Paper mill, Southern Germany, ALMA BHU BAF
Construction of a third treatment stage for wastewater from paper and corrugated cardboard production with a capacity of 700 m³/h for a leading European manufacturer in southern Germany.
Velenje municipal utilities, Slovenia, ALMA BHU BAF, BIO
Expansion of a municipal wastewater treatment plant with reduction of nitrogen and phosphorus compounds and biofiltration for a total wastewater volume of 18,000 m³/d in Slovenia.
Guangda Water Management, China, ALMA BHU LHPS, BAF, Ozone
A municipal wastewater treatment plant for a wastewater volume of 12,000 m³/d with precipitation/flocculation reactors, biologically activated filtration and ozonation in China.
Biological Fine Filtration as a Pretreatment for Water Reuse and Reverse Osmosis
The ALMA BioFil Compact reduces biodegradable organic residual loads and nitrogen compounds in process water and industrial wastewater. Specialized microorganisms grow on functionalized clay beads and form an active biocenosis. As a result, this biofiltration process is particularly well-suited as a stable pretreatment step prior to reverse osmosis systems and other advanced treatment stages.
Why Biofiltration Is Useful Before Reverse Osmosis
- Reduction of Residual Organic Contaminants Bioavailable organic compounds are specifically degraded prior to downstream membrane treatment.
- Reduction of Microbial Growth A lower nutrient load can limit the growth of microorganisms in reverse osmosis systems and process water systems.
- High performance even at low loads The specialized biocenosis is also suitable for process water with low contaminant levels, such as vapor condensates from the food and dairy industries.
- Compact Biological Treatment Stage The growing biomass enables a high level of biological activity within a comparatively small plant footprint.
- Can be integrated into water reuse systems in a modular fashion Biofiltration can be combined with filtration, membrane processes, and other treatment stages to form a complete water recycling system.
How the ALMA BioFil Compact Works
The process water is fed into the biofiltration system under as uniform hydraulic and material conditions as possible;
The water flows through a filter bed of functionalized clay beads, on the surface of which specialized microorganisms grow.
The sessile biomass breaks down dissolved organic compounds and, depending on the design, can also reduce nitrogen compounds.
Biomass and growth media remain in the system, while the biologically treated water leaves the filter stage.
After biofiltration, the water can, for example, be sent to a fine filtration system or reverse osmosis system for water reuse.
When is the ALMA BioFil Compact particularly useful?
Typical Integration into a Water Reuse System
Steam condensate or other industrial water containing biodegradable residual contaminants.
Biological degradation of organic compounds and, depending on the design, nitrogen compounds.
If necessary, additional fine filtration to reduce the load on the downstream membrane stage.
Further treatment for on-site reuse of the treated water.
Downloads biofiltration system
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Maksim Neubauer
Head of International Project Development