BAF for upgrading sewage and wastewater treatment plant
Aerated biological filter (BAF) is a new type of biological wastewater treatment technology. It is also called submerged aerated biological filter, which is developed on the basis of biofilm methods such as ordinary biological filter, high-load biological filter, biological...
Send InquiryBAF for upgrading sewage and wastewater treatment plant Introduction
Aerated biological filter (BAF) is a new type of biological wastewater treatment technology. It is also called submerged aerated biological filter, which is developed on the basis of biofilm methods such as ordinary biological filter, high-load biological filter, biological filter tower, biological contact oxidation method, and is called the third generation of biological Filter.
Product detail
Original: Jiangsu, China
Certification: ISO9001, ISO14001, etc.
Price: Negotiable
Payment term: TT, LC
Delivery date: Negotiable
Packing: export standard
Market: Middle East/ Africa/Asia/South America/Europe/North America
Warranty: 1 year
MOQ: 1 set
Equipment Features
1. The horizontal upward flow of gas is used to make the gas and water evenly divided, which prevents the air bubbles from condensing in the filter layer. The oxygen utilization rate is high and the energy consumption is low.
2. Contrary to downflow filtration, upflow filtration is maintained at the entire filter height to provide positive pressure conditions, which can better avoid the formation of gully flow or short flow, thereby avoiding the formation of gully flow to affect the filtration process. Air trap.
3. The upward flow forms a semi-column push condition that is beneficial to the process. Even if high filtration speed and load are used, the long-term stability and effectiveness of the BAF process can still be guaranteed.
4. The upward flow of air is used horizontally, so that the space filtration can be better used. The air can bring solid substances into the depth of the filter bed, and high-load, uniform solid substances can be obtained in the filter tank, thereby prolonging the reaction. Rinse cycle, reduce the cleaning time and the amount of air and water used for cleaning.
5. The cutting effect of the filter material layer on the bubbles prolongs the residence time of the bubbles in the filter tank, and improves the utilization rate of oxygen.
6. Due to the excellent pollution interception capacity of the filter, there is no need to set up a secondary sedimentation tank behind the BAF aerated biological filter.
The design ideas of the sewage treatment contact oxidation method and the fast water supply filter are fully provided, that is, aeration, high filtration speed, suspended solids retention, and regular backwash are required. , Phosphorus removal, removal of AOX (harmful substances).
Working principle
The aerated biological filter (BAF) can be used not only for the three-stage precision treatment of sewage and eutrophication of water bodies, but also for the treatment of urban sewage, residential sewage, and various industrial wastewater. With the deepening of research, the biological aerated filter has gradually developed from a single process to a series of comprehensive processes, which have the functions of removing SS, COD, BOD5, nitrification, nitrogen and phosphorus removal.
According to the different filtering directions of sewage in the operation of the filter tank, the aerated biological filter can be divided into upflow and downflow filters. In addition to the different flow directions of sewage in the filter, upflow and downflow filters The pool structure is basically the same.
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