The multi-stage A/O coupled partial anaerobic ammonia oxidation process is a mud film coupling method, which removes nitrogen and phosphorus through short-range denitrification partial anaerobic ammonia oxidation and short-range nitrification partial anaerobic ammonia oxidation. Usually composed of 2-4 stages of hypoxia/aerobic sequence arrangement. This process uses anaerobic ammonia oxidizing bacteria to achieve partial anaerobic ammonia oxidation, which can fully utilize the carbon source in the raw water and achieve deep and efficient nitrogen and phosphorus removal.
Anaerobic ammonia oxidation bacteria (Anammox) are a type of bacteria belonging to the Planctomycetes. "Red bacteria" is a common name for anaerobic ammonia oxidation bacteria in the industry. Through biochemical reactions, they can convert ammonia nitrogen contained in wastewater into nitrogen gas for removal. They are of great significance to the global nitrogen cycle and are also important bacteria in wastewater treatment.
Product Highlights
01
Significant energy conservation and consumption reduction
Compared to traditional processes, it saves 60% of aeration and significantly reduces system power consumption.
02
100% carbon source savings
The system relies entirely on autotrophic bacteria to complete the denitrification process, achieving a TN removal rate of over 88% without the need for additional carbon sources.
03
Efficient and stable
High volumetric load, occupying only 50% of the traditional process area, stable operation, and easy operation.
Product advantages
Intelligent cost control, reducing consumption and increasing efficiency
The multi-stage AO coupled partial anaerobic ammonia oxidation process adopts a combination of parameter adjustment, optimization of reactor structure and operation mode, and process control, which can effectively reduce operating costs while improving nutrient removal efficiency
Efficient maintenance free
The multi-stage AO coupled partial anaerobic ammonia oxidation process not only has good effluent quality, no external carbon source, no vulnerable components, no power consumption, and maintenance free throughout the entire life cycle, but also makes operation and management more convenient
Save 30% on operating costs
Compared to MBR process, the overall operating cost can be saved by 26%, and compared to BAF process, it can be saved by 30%
Developing wastewater carbon sources
Insufficient carbon sources in sewage are one of the important reasons restricting the nitrogen and phosphorus removal performance of biological treatment of urban domestic sewage. The multi-stage AO coupled partial anaerobic ammonia oxidation process can effectively develop and utilize carbon sources in sewage to improve its biodegradability and enhance the nitrogen and phosphorus removal efficiency of sewage treatment plants
Integrated optimization, energy-saving coupling
The multi-stage AO coupled partial anaerobic ammonia oxidation process can fully solve the problems of low nutrient removal efficiency, high aeration energy consumption, and high operating costs in system operation by reasonably adopting new biological denitrification technologies such as short-range denitrification and anaerobic ammonia oxidation
