Municipal or domestic sewage treatment plants operate with a
high ammonium nitrogen load (NH4-N) coming from their sludge treatment process. This partial flow is usually re-supplied to the biological main flow process where it causes energy consumption due to the process air flow on the one hand and BOD consumption on the other (carbon source required for the de-nitrification process). Under optimal conditions, it is however possible to treat this filtrate flow by means of ANAMMOX process and hence to relieve the treatment plant energetically and hydraulically.
How is MBBR media volume calculated? To calculate the number of media carriers a facility may need for a wastewater tank, it should first determine the organic load of its wastewater. The organic load will be more or less equal to the product of the flow rate and the difference between the influent and effluent concentration.
The biofilm carriers can be loaded into complete mixed bioreactors at a minimum fill ratio of 25% v/v to the overall working volume of the tank. Future expansion of bioFAS™ MBBR capacity can be achieved by addition of biomass carriers up to 75% v/v and increasing the air supply.
What is mbbr media? MBBR media also named mbbr bio media, mbbr carrier. what has been known as Moving Bed Biofilm Reactor (MBBR) is a wastewater treatment process. Installed among 50 countries worldwide, it sums up to over 700 wastewater treatment systems available in either municipal or industrial purposes. So, it need many mbbr media.
Having a sieve on the outlet of the tank will add a better performance and is plainly necessary to put hold on the plastic carriers from breaking free of the aeration process.
MBBR process flow diagram shows a purpose of no more bioclogging and build-up of head loss. This moving bed biofilm reactor helps the system to discard recycling of the sludge through its activated sludge systems which provides a better advantage.
The choice of filler types should consider the requirements of the separation process, usually the following aspects:
1) High mass transfer efficiency, Generally speaking, the mass transfer efficiency of structured packing is higher than that of bulk packing.
2) The flux should be large. Under the premise of ensuring high mass transfer efficiency, packing with high flooding point gas velocity or gas phase kinetic energy factor should be selected.
3) The pressure drop of the packing layer should below.
4) The packing has a strong anti-fouling performance, easy to disassemble and repair.
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