A sand-based flat membrane-
bioreactor mainly comprises a bio-reaction
cell, a
membrane filter cell, a biological air-blowing flowmeter, a biological air-blowing
pipe, a membrane air-blowing flowmeter, a membrane air-blowing
pipe, an n-shaped circulating
pipe, a sand-based flat membrane component, a suction pump, a partition wall, a
purified water flowmeter, an
air pump, a sand-based flat membraneelement, and a membrane bracket. Based on the well-known water permeable
brick technology, the invention is prepared by the following steps:
coating an organic membrane material to obtain a long-lifemembrane element - sand-based flat membrane element, forming a sand-based flat membrane component by the membrane element, and forming a sand-based flat membrane-
bioreactor by the sand-based flat membrane component. The invention solves and overcomes the problems of a short service life due to the adoption of an organic membrane, and high cost, high running
energy consumption and high running expense due to the adoption of an inorganic
ceramic membrane for well-known membrane bioreactors. The
membrane bioreactor becomes a technique for
water treatment,
sewage treatment, and
sewage regeneration and recycle, which is more practical, and is suitable for popularization and large-scale utilization.