ALMA BHU BIO DEA
The system works without an external carbon source and requires up to 60 % less oxygen, which significantly reduces operating costs. The aeration system is individually adapted to the type of wastewater and customer requirements to ensure stable and efficient performance.
Your contact for activated sludge systems with integrated deammonification
Maksim Neubauer
Head of International Project Development & Water Reuse
References aerobic water treatment 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.
Energy-Efficient Deammonification for Ammonium-Rich Wastewater
The ALMA BHU BIO DEA combines partial nitrification and the anammox reaction into a compact biological nitrogen removal system. A portion of the ammonium is first oxidized to nitrite. Subsequently, anammox bacteria convert ammonium and nitrite primarily into elemental nitrogen. As a result, less oxygen and no external carbon source are required.
Wastewater High in Ammonium
Wastewater with high nitrogen and ammonium loads is fed into the biological treatment stage.
Some of the ammonium is converted to nitrite
Only a portion of the ammonium is oxidized under controlled aeration. Complete nitrification to nitrate is largely prevented.
Conversion to elemental nitrogen
Anammox bacteria convert ammonium and nitrite into gaseous nitrogen without a additional source of organic carbon.
Advantages of deammonification
- Lower oxygen demand Due to the shortened nitrogen conversion process, significantly less aeration energy is required.
- No external carbon source For nitrogen removal, it is generally not necessary to add methanol or any other carbon source.
- Reduced excess sludge production The slow growth of anammox biomass reduces the amount of sludge produced.
- Compact System Configuration The high biological performance density allows for space-saving integration into both new and existing plants.
When is the ALMA BHU BIO DEA a good choice?
- High ammonium concentrations For industrial or municipal effluents with a high nitrogen load.
- Low carbon-to-nitrogen ratio Particularly suitable when there is little biologically available carbon for conventional denitrification.
- High aeration or chemical costs Recommended when the goal is to reduce the energy and operating material requirements of an existing nitrogen removal system .
- Expansion of Existing Aeration Systems Depending on the specific project, deammonification can be integrated into existing biological treatment plants.
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Maksim Neubauer
Head of International Project Development & Water Reuse