Sand-based flat membrane-bioreactor
A bioreactor, bioreactor technology, applied in sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc. The problem of high water consumption can achieve the effect of large circulating water volume, reducing equipment costs, reducing water consumption and chemical cleaning dosage.
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[0042] Sand-based membrane bioreactor of the present invention, it mainly comprises:
[0043] Biological reaction tank 2, membrane filter 3, biological drum air flow meter 4, biological drum air tube 5, membrane drum air flow meter 6, membrane drum air tube 7, n-shaped circulation pipe 8, sand substrate type membrane module 9, suction pump 10. Partition wall 11, purified water flow meter 12, air pump 13, sand substrate type membrane element 14, membrane support 15 (see figure 1 ).
[0044] The specific composition is: the membrane filter 3 and the biological reaction tank 2 are separated by a partition wall 11, and the top of the partition wall 11 is submerged in the biological reaction tank 2 or the membrane filter tank 3 from the water level to a depth of 10-35 cm, and the bottom of the partition wall 11 has holes An n-shaped circulation pipe 8 is installed on the partition wall 11 between the membrane filter tank and the biological reaction tank; the main body of the n-sh...
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