Technology Development
Mechanism of Membrane-Aerated Biofilm Reactor (MABR)
MABR – Compact & Energy-Efficient Biological Treatment
MABR supplies oxygen directly through gas-permeable membranes to the attached biofilm. This bubble-free, counter-diffusion mechanism enhances nitrification and enables simultaneous nitrogen removal with significantly lower energy consumption.
Key Benefits- Up to 50% more treatment capacity within existing tank volumes
- Up to 4× lower aeration energy for oxygen transfer
- Effective ammonia and nitrogen removal
- Simultaneous nitrification and denitrification
- Resilient to load fluctuations and process disturbances
- Easy retrofit with minimal civil construction
- Potential reduction of N₂O and greenhouse gas emissions
- Upgrade of existing activated sludge plants
- Capacity expansion where land is limited
- Ammonia and total nitrogen removal
- Biological phosphorus removal enhancement
- Municipal and domestic wastewater
- Decentralized wastewater treatment and water reuse
- Selected industrial wastewater applications

ANAMMOX – Energy-Efficient Nitrogen Removal
ANAMMOX is an advanced biological nitrogen removal process designed for wastewater with high ammonium concentration and a low C/N ratio.
Through a shortened nitrogen conversion pathway, anaerobic ammonium-oxidizing bacteria convert ammonium (NH₄⁺) and nitrite (NO₂⁻) directly into nitrogen gas (N₂). This process significantly reduces the demand for aeration and external organic carbon compared with conventional nitrification–denitrification systems.
Key Benefits- Up to 60% lower aeration energy
- Minimal or no external carbon dosing
- Up to 90% less sludge production
- Approximately 55% lower CO₂ emissions
- Lower operating costs for nitrogen removal
- Sludge digestion reject water
- Landfill leachate
- Ammonia and chemical wastewater
- Monosodium glutamate wastewater
- Textile mercerization wastewater
- Livestock wastewater
- Selected municipal and domestic wastewater streams


