Split type flat membrane

Abstract

The invention discloses a split type flat membrane. The split type flat membrane comprises a plurality of flat membrane units which can be stacked up and down, wherein each flat membrane unit comprises an edge strip framework, a support body and filtration membranes; the edge strip frameworks are formed by a plurality of edge strips; corresponding welding line strips and a plurality of riveting buttons are arranged on the inner side of the edge strip framework; the support body is mounted on the edge strip framework by virtue of the welding line strips; a water discharging channel connected with a water collecting runner is formed at the edge of the outer side of the edge strip framework; a plurality of runners and clamping openings are formed in the support body; the filtration membranes are paved on the upper side and the lower side of the support body; the riveting buttons are adapted with the clamping openings and can be directly clamped into the clamping openings; and the edge strips are in seamless butt joint with the support body. According to the split type flat membrane, the edge strips and the support body are combined for use and can be in seamless butt joint with each other to form an integrated support plate; the manufacturing cost of the flat membrane can be reduced; the problem that the flat membrane is difficult to be applied in a large scale can be solved; the investment cost of the flat membrane is equivalent to that of a hollow fiber membrane; the support body can be repeatedly used after the edge strips are demounted; and the secondary value of the support body is realized.

Description

technical field [0001] The invention relates to a submerged membrane bioreactor, in particular to a split flat membrane. Background technique [0002] my country's increasingly stringent sewage treatment discharge standards and the introduction of stricter environmental protection policies have promoted the continuous application of membrane technology in the field of water treatment. The strong market demand also promotes the continuous upgrading of different membrane technology products. At present, the dominant membrane products in the field of sewage treatment are mainly hollow membranes and flat membranes. Although hollow membranes are prone to gradual pollution by activated sludge and cover the surface of hollow fiber membranes The phenomenon reduces the filtration flux of the membrane and affects its service life. However, the market share of the hollow membrane is much larger than that of the flat membrane because of its low cost and fast promotion speed. The surfac...

AI Technical Summary

Problems solved by technology

[0003] Although the flat film on the market has many advantages, its high cost and high investment greatly restrict the application and promotion of flat film products

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