What is the development prospect of MBBR packing?

What is the development prospect of MBBR packing? The MBBR process is widely used in foreign countries, but less in China. The MBBR process is stable and reliable, with strong impact load resistance and good denitrification effect. It is an economical and efficient sewage treatment process. In the treatment of domestic sewage, the removal rate of organic matter and ammonia nitrogen can be increased by more than 10% compared with the traditional biofilm AO process. MBBR process has great research value and application prospect.

(1) Research and development of suspended fillers
In-depth research should be carried out on the chemical properties of the filler surface and the shedding mechanism of the suspended filler to increase the specific surface area of the filler; the cost of the suspended filler should be reduced as much as possible so that the suspended filler can be more widely used in sewage treatment. Activated carbon, starch, gelatin, etc. can be used as bioactive additives, so that the suspended filler can promote the growth and reproduction of microorganisms.

(2) Combination of MBBR and other processes
Multi-stage MBBR, MBBR and A/O combined processes all have their own advantages, and these combined processes should be studied and applied in practice.

(3) Research on MBBR process reactor
Through the study of reactor fluid mechanics, the shape of the reactor is determined to achieve the optimal reactor structure, thereby avoiding packing accumulation and reducing energy consumption. The structural type and control scheme of the multi-stage series continuous suspended packing moving bed reactor can be preliminarily studied, laying the foundation for the popularization and application of the project technology.

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