I. Technical overview
The integrated MBBR sewage treatment plant is a novel and highly efficient reactor, which is between the activated sludge process and the fixed biofilm process. In the reactor, the fillers with large specific surface area move freely in the water due to being stirred. When the sewage continuously passes through the reactor loaded with the moving fillers, the biofilm is grownand formed on the filler. The microorganisms multiply in large volume on the biofilm. The heterotrophic and autotrophic microorganisms undergo metabolism by the use of C, N, P, etc. in water, which plays the role of purification of sewage.
II. Technical principles
Through the A/O treatment, BODs and ammonia nitrogen in the sewage are removed, while biological nitrogen and phosphorus removal is achieved. At Level A, due to high concentration of organic matter in sewage, the microorganisms are in the state of hypoxia. At this time, the microorganisms are facultative microorganisms, which convert and decompose the organic oxygen in the sewage into NH3-N, and meanwhile use organic carbon as the electron donor. NO2-N and NO3-N are converted into N2, and anaerobic conditions promote the polyphosphate accumulating organisms (PAOs) towards phosphorus release, which is conducive to biological phosphorus removal. At Level 0, as the concentration of organic matter has been greatly reduced, but there still exists a certain amount of organic matter and higher NH3-N, in order to make the organic matter undergo further oxidative decomposition, while having nitrification been carried out smoothly with carbonation being in the case of completion, we mainly utilize the highly efficient MBBR process at Level 0, to decompose the organic matter into CO2 and H2O, and complete the nitrification and denitrification. Some of the unexposed nitrates continue to complete the denitrification reaction by returning to the pool A.
III. Product features
1. With the use of suspended MBBR carrier, high specific surface area , and the biomass is up to 30-40g/l. The aerobic tank volume load is improved to reach 2-3 times the conventional activated sludge process;
2. MBBR technology to achieve high efficiency biological sputum and phosphorus removal;
3. Highly efficient suspended MBBR carrier enables the system with improved oxygen conversion efficiency, and reduces operating costs; with the unique carrier technology, the system emits less sludges in equipment, which are 30% of the ordinary activated sludges.
4. With the use of container (tank) structure, and integrated design,resulting in short working duration, less land occupation and convenient installation.
5. With the online remote monitoring function and through the mobile terminal, the user can perform real-time monitoring and remote control, resulting in improved reliability of system operation and reduced labor intensity.
6. With the solar power supply, the system can run with low energy consumption.
IV. Scope of application
§ Ø Domestic sewage, which is not connected, with no plan for being connected, or with no conditions for being connected, to urban sewage treatment plants, and instead is directly discharged into the nearby water body. It includes decentralized township sewage and rural sewage;
§ Ø Domestic sewage, which is not connected to villas, resorts and residential quarters in urban pipe network; stations, docks, airports, expressway service areas, troop compounds, island garrison base and other areas.
The integrated MBBR sewage treatment plant is a novel and highly efficient reactor, which is between the activated sludge process and the fixed biofilm process. In the reactor, the fillers with large specific surface area move freely in the water due to being stirred. When the sewage continuously passes through the reactor loaded with the moving fillers, the biofilm is grownand formed on the filler. The microorganisms multiply in large volume on the biofilm. The heterotrophic and autotrophic microorganisms undergo metabolism by the use of C, N, P, etc. in water, which plays the role of purification of sewage.
II. Technical principles
Through the A/O treatment, BODs and ammonia nitrogen in the sewage are removed, while biological nitrogen and phosphorus removal is achieved. At Level A, due to high concentration of organic matter in sewage, the microorganisms are in the state of hypoxia. At this time, the microorganisms are facultative microorganisms, which convert and decompose the organic oxygen in the sewage into NH3-N, and meanwhile use organic carbon as the electron donor. NO2-N and NO3-N are converted into N2, and anaerobic conditions promote the polyphosphate accumulating organisms (PAOs) towards phosphorus release, which is conducive to biological phosphorus removal. At Level 0, as the concentration of organic matter has been greatly reduced, but there still exists a certain amount of organic matter and higher NH3-N, in order to make the organic matter undergo further oxidative decomposition, while having nitrification been carried out smoothly with carbonation being in the case of completion, we mainly utilize the highly efficient MBBR process at Level 0, to decompose the organic matter into CO2 and H2O, and complete the nitrification and denitrification. Some of the unexposed nitrates continue to complete the denitrification reaction by returning to the pool A.
III. Product features
1. With the use of suspended MBBR carrier, high specific surface area , and the biomass is up to 30-40g/l. The aerobic tank volume load is improved to reach 2-3 times the conventional activated sludge process;
2. MBBR technology to achieve high efficiency biological sputum and phosphorus removal;
3. Highly efficient suspended MBBR carrier enables the system with improved oxygen conversion efficiency, and reduces operating costs; with the unique carrier technology, the system emits less sludges in equipment, which are 30% of the ordinary activated sludges.
4. With the use of container (tank) structure, and integrated design,resulting in short working duration, less land occupation and convenient installation.
5. With the online remote monitoring function and through the mobile terminal, the user can perform real-time monitoring and remote control, resulting in improved reliability of system operation and reduced labor intensity.
6. With the solar power supply, the system can run with low energy consumption.
IV. Scope of application
§ Ø Domestic sewage, which is not connected, with no plan for being connected, or with no conditions for being connected, to urban sewage treatment plants, and instead is directly discharged into the nearby water body. It includes decentralized township sewage and rural sewage;
§ Ø Domestic sewage, which is not connected to villas, resorts and residential quarters in urban pipe network; stations, docks, airports, expressway service areas, troop compounds, island garrison base and other areas.
