ALMA BHU BIO
Your contact for activated sludge systems
Maksim Neubauer
Head of International Project Development & Water Reuse
References activated sludge plants
Sugar industry, Chile, ALMA BHU BIO
Construction of a biological treatment stage with sedimentation stage for the treatment of 120 m³/h of wastewater from the sugar industry in Pemuco, Chile.
Focsani wastewater treatment plant, Romania, wastewater treatment and biogas plant
Turnkey construction of a municipal wastewater treatment plant with biogas plant as sludge treatment for a total wastewater volume of 40,000 m³/d in Romania.
Alba lulia wastewater treatment plant, Romania, wastewater treatment and biogas plant
Construction of a municipal wastewater treatment plant with biological phosphorus elimination and a biogas plant for a total wastewater volume of 21,562 m³/d in Romania.
SC AQUABIS S.A, Romania, biological phosphorus elimination, denitrification
Expansion of four municipal wastewater treatment plants for a total wastewater volume of 1,440 m³/h with a focus on nitrogen and phosphorus degradation using biological processes in Romania.
Aerobic activated sludge system for COD, BOD, and nitrogen removal
The ALMA BHU BIO is a custom-designed biological wastewater treatment plant for large industrial and municipal wastewater flows. Through a combination of denitrification, aerated nitrification, internal recirculation, and sludge recirculation, organic loads and nitrogen compounds are reliably reduced.
Denitrification
Under low-oxygen conditions, nitrate is converted into gaseous nitrogen with the help of biologically available carbon compounds.
Aerated Activated Sludge Process
Microorganisms break down dissolved organic matter. An aeration system designed to meet the system's needs supplies the biomass with oxygen.
Nitrification
Under aerobic conditions, ammonium is first oxidized to nitrite and then to nitrate.
Sludge Separation
Biomass and clarified water are separated from each other by a secondary clarifier or a membrane system.
Benefits of the ALMA BHU BIO
- High Removal of Organic Contaminants The biological aeration stage reliably reduces biologically degradable COD and BOD compounds.
- Integrated Nitrogen Removal Nitrification and denitrification are combined into a coordinated biological treatment process.
- Demand-Based Aeration Aerators, tank geometry, and oxygen input are adapted to the type of wastewater, load, and treatment objective.
- Flexible Sludge Separation Depending on the available space and discharge requirements, a secondary clarifier or a membrane system can be used.
- Customizable The system can be supplemented with phosphorus removal, filtration, membrane technology, or additional treatment stages.
Secondary clarifier or membrane separation?
Secondary Clarifier for Rugged Standard Applications
The biomass settles in the secondary clarifier. A portion of the settled sludge is returned as return sludge to the biological treatment stage. This configuration is particularly suitable when there is sufficient space and the sludge settles well.
Membrane separation for high-quality effluent
A membrane directly retains biomass and suspended solids. This makes it possible to achieve high biomass concentrations, compact systems, and very low solids concentrations in the effluent.
The selection is made on a project-by-project basis
Key factors include wastewater volume, sludge settleability, available space, discharge requirements, energy consumption, maintenance plan, and the potential for water reuse.
Typical areas of application
Process diagram: ALMA BHU BIO
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Please contact our specialist for biological wastewater treatment plants: E-Mail
Reference photos
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Get in touch with us!
Maksim Neubauer
Head of International Project Development & Water Reuse