Which is better MBR or MBBR?

MBR and MBBR are only one letter apart, but many people confuse them. The so-called difference is thousands of miles away. So what is the difference between mbr and mbbr? Which is better? Let the editor of Sanda Film introduce it to you in detail.

What is the difference between mbr and mbbr?

1. Membrane Bioreactor (MBR): Membrane bioreactor is a new type of water treatment technology that combines MBR membrane and biological treatment unit. The membrane module is used to replace the secondary settling tank (or decanter), maintain a higher activated sludge concentration in the bioreactor, reduce the footprint of the sewage treatment facility, and reduce the sludge volume by maintaining a lower sludge load.
2. MBBR: The carrier fluidized bed biofilm technology is to increase the biomass and biological species in the reactor by adding a certain amount of suspended carrier to the reactor, thereby improving the processing efficiency of the reactor.

Which one is better, mbr or mbbr?

Comparison of cost, operation and maintenance

MBR: The service life of membrane modules is generally 4-5 years, and the replacement cycle is short. In daily operation management, maintenance work such as chemical cleaning and off-line cleaning of membrane units that are difficult to operate and manage is required. In recent years, with the rapid development of technology such as instrumentation, control and automation equipment, more and more sewage treatment processes are unmanned.

MBBR: The filler can be added at one time, and the subsequent operation only needs to strengthen the biofilm management on the filler. The investment during the construction period is large, but the later operation and maintenance are relatively simple.

In fact, both MBR and MBBR have their own significance. Xiaobian took them out to compare, in order to play a better role. No doubt, which is more powerful. The field of sewage treatment is wide and varied. It is a better choice to choose different processes according to different situations.

from the filter effect to compare

Organics: The MBR process relies on its high sludge load. The MBBR process relies on a biofilm on the filler.

Total nitrogen and total phosphorus: The MBBR process has a better removal effect on total nitrogen, and the removal of total phosphorus needs to rely on chemical phosphorus removal. The removal of TN by the MBR process depends on the front-end biological method, and the MBR membrane itself has no effect on the removal of TN. TP removal also depends on the chemical phosphorus removal added at the front end.

SS: MBBR has no effect on SS removal, and needs to rely on the back-end ultrafiltration membrane process to remove SS. The removal effect of MBR film on SS is better.