MBBR [Moving Bed Biofilm Reactor] Principle for the Moving Bed Biofilm process

摘要

IN the Moving Bed Biofilm process the biomass is growing as a film on small carrier elements that move along with the water in the reactor. Air is introduced at the bottom of the reactor, mixing the reactor contents and keeping the carriers, which have density close to water, in suspension and continous movement. The carriers, and thereby the microorganisms, are retained in the reactor by means of a grid or a sieve at the outlet of the reactor. Excess sludge loosens from the carriers and follows the water out of the reactor.