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A curtain type membrane assembly

A curtain membrane and module technology, applied in the direction of sustainable biological treatment, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve problems such as difficult sludge cleaning, membrane surface pollution, and affecting water effluent effect. To achieve the effect of cleaning the membrane silk easily, not easy to pollute, and improving the water outlet efficiency

Inactive Publication Date: 2006-10-11
TIANJIN MOTIAN MEMBRANE ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The accumulated sludge is difficult to wash off, which will cause serious pollution on the membrane surface, and even the membrane filaments at the lower part of the curtain membrane are connected together by activated sludge, affecting its water outlet effect

Method used

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  • A curtain type membrane assembly
  • A curtain type membrane assembly
  • A curtain type membrane assembly

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Embodiment Construction

[0015] The present invention adopts the hollow fiber microporous membrane 5 in the form of "U", the opening end of which is bonded to the upper collecting pipe 1, and the lower end is not connected to the collecting pipe. Install a perforated tube thinner than the upper collecting tube in the U-shaped gap, as the lower insertion tube 6, the insertion tube 6 is connected with the aeration tube 8, and the aperture and number of holes of the insertion tube 6 are less than the aeration tube 8 pore diameter and number of holes, and the openings are facing upwards, the released air bubbles blow directly into the voids of the hollow fibers. Because this air blowing pipe is not directly connected with silk, it can be pulled down, so the lower end of U-shaped wire 5 is a free end, and the activated sludge hanging on can be blown or rinsed off easily. Because this little insertion pipe 6 passes through the lower space of this row of U-shaped silk membranes, it also plays a role in posit...

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PUM

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Abstract

The invention relates to a curtain-type film assembly used in flim bioreactor. In order to settle present problem in technology, the invention provides a curtain-type film assembly, and comprises hollow fiber microporous membrane thread and collecting tube, which is characterized in that the hollow fiber flim is in 'U' shape, with open end connected with upper collecting tube, the lower of U-shape is free end, between lower membrane threads slotting tube is located, which is thinner than collecting tube and taken as inset tube. Inset tube connected with aerated conduit and perforated-up. Inset tube and lower aerated conduit forming a closed tube circuit, the lower of membrane threadn is in the circuit. The curtain-type film assembly supported by the invention has the following merits: no-contamination, no activated sludge between membrane thread, convenience on cleaning membrane thread, and it can improve dewatering efficiency of film assembly.

Description

technical field [0001] The invention relates to a membrane bioreactor (MBR), in particular to a curtain membrane module used in the membrane bioreactor. Background technique [0002] Membrane modules in the prior art such as figure 1 As shown, the upper and lower ends respectively have an upper collecting pipe 1 and a lower collecting pipe 4 . The two ends of the hollow fiber membrane filament 2 are respectively bonded to the collection pipe. During use, the curtain membrane module is vertically fixed in the reaction tank, and the activated sludge (microorganisms) of the system is easy to accumulate in the joint between the lower collecting pipe 4 and the hollow fiber 2 during operation. figure 1 Reference number 3 in shows the position where the activated sludge stays. The accumulated sludge is difficult to wash off, which will cause serious pollution on the membrane surface, and even the membrane filaments in the lower part of the curtain membrane are connected together...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/12
CPCY02W10/10
Inventor 杜启云
Owner TIANJIN MOTIAN MEMBRANE ENG & TECH
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