Bioflim MBR (BF-MBR)

Effect of biocarrier on organic loading The maximum allowable volumetric organic loading rate measured by food to volume ratio (F/V) is directly related to the maximum volumetric oxygen dissolution rate (VODRmax) since microorganisms can accommodate any organic loading rate in realistic situations as long as oxygen is enough. The VODRmax is also same as maximum […]

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Bioflim MBR (BF-MBR)

Effect of biocarrier on oxygen transfer efficiency The existence of biocarrier certainly affects OTE, but it is not completely intuitive. In one hand, the biocarrier may increase the contact time of bubble with water by interfering the bubble rise. On the other hand, biocarriers may act as a catalyst of bubble coalescence and reduce the […]

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Bioflim MBR (BF-MBR)

Overview There has been an idea that the aeration tank with suspended culture can be replaced with biofilm reactor from the beginning of MBR technology. In this idea, suspended or fixed biocarriers (or media) are added to aeration tank to grow biofilm on the surface of biocarriers . Strainers are required to prevent suspended biocarriers […]

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Membrane cleaning

Maintenance Cleaning Periodic backflushing can be performed in hollow fiber membrane processes to remove a portion of the cake layer formed on membrane surface. In practice, backflushing is performed for 10-60 seconds periodically every 10 minutes to a few hours at 1.5 to 2.0 times higher flow rates than the permeate flow rate using the […]

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Effluent quality

In a conventional activated sludge (CAS) process under reasonable operating condition, effluent quality fluctuation occurs mainly by suspended solids not removed in clarifier as a consequence of sludge bulking. The fine organic particles contained in the effluent contribute not only to TSS, but also to BOD. On the other hand, all the fine particles are […]

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