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Application of MBFB membrane for wastewater reuse. Mar 09, 2018


MBFB membrane biological fluidized bed process for wastewater reuse, on the basis of the original wastewater discharging standard, through biological fluidized bed and the ceramic membrane separation system, further reduce the indices such as COD, NH -n, turbidity, can direct reuse on one hand, on the other hand also can be used as the pretreatment of the RO desalination processing craft, replacing the sand filter, security filtration, ultrafiltration, such as tedious filtration process, and organic matter content is reduced greatly improve the service life of RO membrane, decrease the cost of the water treatment, inorganic ceramic membrane separation system, is the world's first set of sewage treatment special inorganic membrane separation system, compared with other organic membranes, inorganic membranes, with large flux, recoil, automatic operation and other advantages.

Plant wastewater reuse equipment  .jpg

Membrane biological fluidized bed process on the basis of biological fluidized bed, with powder activated carbon (Pow dered - activated carbon, PAC) as the carrier, in combination with Membrane bioreactor process (be bioreactor, referred to as the MBR) of solid-liquid separation technique, make the reactor physical adsorption of activated carbon, microbial degradation of efficient and Membrane separation effect is an organic whole, make difficult to degradation of small molecule organic matter in water and under the condition of aeration in the fluidized state of mass transfer, mixing fully activated carbon powder, was on the surface of activated carbon adsorption and enrichment, the activated charcoal surface forming local pollutant concentration area;

Powder activated carbon and also provides a special surface microbial breeding, the porous adsorption on the surface of a large number of microbial flora, especially the target pollutants as microbial flora of the metabolic substrate;

At the same time, the powder activated carbon adsorption of dissolved oxygen in water body has a strong ability, under the condition of high dissolved oxygen, microorganisms of small molecule organic matter enrichment in the activated carbon surface oxidation decomposition, and then using the ceramic membrane separation system and the water adsorption of the organic matter of powder activated carbon aerosols such as separate, through the cross-flow filtration, sewage treatment, further to the water reuse standard.

The study shows that MBFB can effectively remove ammonia nitrogen, COD and other refractory small molecule toxic organics in water.

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