Efficient MBBR + MBR sewage treatment equipment

Abstract

The utility model relates to efficient MBBR (Membrane Bioreactor) and MBR (Membrane Bioreactor) sewage treatment equipment. Comprising an air inlet pipe, an aeration disc bracket, an aeration disc, MBBR (Moving Bed Biofilm Reactor) filler, side air distribution holes, a membrane wire sleeve, a bottom air through hole, MBR membrane wires, a steel manhole and a water outlet pipe. The air inlet pipe is connected with the aeration disc; the aeration disc bracket and the aeration disc are welded and fixed through ABS (Acrylonitrile Butadiene Styrene) engineering plastics; the bottom air penetrating holes are formed in the bottom of the membrane filament sleeve, and the side edge air distributing holes are uniformly distributed around the membrane filament sleeve; the MBR membrane filaments are fixed on the upper and lower sections of the membrane filament sleeve in a hot melting manner; the membrane wire sleeve is fixed above the aeration disc through angle steel; mBBR filler is fully distributed around each membrane fiber sleeve; the water outlet pipe is connected with the MBR membrane wire central pipe in the membrane wire sleeve through a steel wire hose; the steel manhole is mounted at the top of the equipment and is welded and fixed; the water outlet pipe is connected with a self-sucking pump outside the equipment through a pipeline, and the MBR membrane filaments are sucked through negative pressure of the self-sucking pump to produce water. The defects that the MBR process is high in energy consumption and the MBBR needs to be independently provided with a secondary sedimentation tank and occupies a large area are fundamentally overcome.

Description

Technical Field

[0001] The utility model relates to an efficient "MBBR + MBR" sewage treatment device, specifically an efficient and energy-saving sewage treatment device. Background Technique

[0002] With the increasingly strict sewage discharge standards, the increase in operating costs has led to many sewage treatment plants being unable to make ends meet. Under the current sewage discharge standards, reducing various operating costs is the fundamental for the normal operation of a sewage treatment plant. Therefore, more optimization is needed in the design process.

[0003] Currently, the mainstream process for domestic sewage treatment is still the biological method. The MBBR sewage treatment process has the advantages of small floor area, fast biofilm formation speed, good biological adhesion, and high biofilm attachment amount; the MBR sewage treatment process has the advantages of strong shock resistance, good effluent quality, and stable operation. If the two can be effectively combined, it can not only eliminate the secondary sedimentation tank to save land but also reduce the energy consumption of MBR through MBBR aeration. However, the main MBR membranes on the market cannot be integrated with MBBR. The main reason is that their oxygen demands are different, and the MBBR packing is very likely to scratch the hollow fiber membrane of MBBR.

[0004] An efficient "MBBR + MBR" sewage treatment device is equipped with an aeration disc at the bottom, and a hollow fiber membrane in the form of an MBR sleeve is installed above the aeration disc. The inner periphery of the device is filled with MBR fluidized bed packing. In this way, the secondary sedimentation tank can be saved, and the aeration disc can not only provide dissolved oxygen but also play a role in flushing the MBR membrane, eliminating the need for a separate aeration tank, saving land and energy consumption, and fundamentally solving the disadvantages of high energy consumption in the MBR process and the large floor area required for the separate setting of the secondary sedimentation tank in MBBR. Content of the Utility Model

[0005] Aiming at the above-mentioned current situation, the purpose of the utility model is to solve the disadvantages of high energy consumption in the MBR process and the large floor area required for the separate setting of the secondary sedimentation tank in MBBR.

[0006] The purpose of the utility model is achieved through the following technical solutions: an efficient "MBBR+MBR" sewage treatment equipment, characterized in that it includes an air inlet pipe, an aeration plate bracket, an aeration plate, MBBR filler, side air holes, a membrane sleeve, bottom air holes, MBR membrane, a steel manhole, and an outlet pipe; the air inlet pipe is connected to the aeration plate; the aeration plate bracket and the aeration plate are fixed by welding with ABS engineering plastic; the bottom air holes are installed at the bottom of the membrane sleeve, and the side air holes are distributed around the membrane sleeve and are evenly arranged; the MBR membrane is fixed to the upper and lower sections of the membrane sleeve by hot melting; the membrane sleeve is fixed above the aeration plate by angle steel; each membrane sleeve is covered with MBBR filler; the outlet pipe is connected to the MBR membrane center pipe in the membrane sleeve by a steel hose; the steel manhole is installed on the top of the equipment and fixed by welding.

[0007] The air inlet pipe is made of ABS engineering plastic and is connected to the aeration plate through an ABS pipe.

[0008] The aeration plate bracket is located below the aeration plate, and the aeration plate bracket is fixed to the equipment base plate by self-tapping screws.

[0009] The bottom air-permeation hole at the bottom of the membrane thread sleeve adopts an inverted triangle design, and the aperture of the lower hole of the inverted triangle is twice the aperture of the upper hole.

[0010] The aperture of the side cloth pores is 18 mm, the diameter of the MBBR filler is 25 mm, and the MBBR filler is evenly distributed around the side cloth pores and cannot enter the membrane sleeve.

[0011] The MBR membrane thread adopts a hollow fiber membrane with a filtration pore size of 0.1 μm. The MBR membrane thread and the membrane thread sleeve are fixed by hot melting.

[0012] The membrane wire sleeve is fixed by angle steel to ensure that the upper and lower sections are at the same elevation and have the same height.

[0013] The outlet pipe is connected to the MBR membrane center pipe in the membrane sleeve, and the connection method adopts a steel hose, and the two ends are tightened by stainless steel clamps.

[0014] Two sets of steel manholes are installed on the top of the equipment, symmetrically front and back, above the water outlet pipes, and the valves on the water outlet pipes are located inside the steel manholes.

[0015] The outlet pipe is connected to the self-priming pump outside the equipment through a pipeline, and the MBR membrane fibers are sucked to produce water by the negative pressure of the self-priming pump.

[0016] Compared with the existing technology, the beneficial effects of the present invention are: an efficient "MBBR+MBR" sewage treatment equipment is an aeration plate installed at the bottom, and a hollow fiber membrane in the form of an MBR sleeve is installed above the aeration plate. The interior of the equipment is filled with MBR fluidized bed fillers. The aeration plate can provide dissolved oxygen to flush the MBR membrane, and there is no need to set up a separate aeration box, saving space and energy consumption, which fundamentally solves the shortcomings of high energy consumption of the MBR process and the need for a separate secondary sedimentation tank for MBBR, which occupies a large area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of an efficient "MBBR+MBR" sewage treatment equipment

[0018] In the accompanying drawings, the parts represented by each number are listed as follows: 1. Air inlet pipe, 2. Aeration plate bracket, 3. Aeration plate, 4. MBBR filler, 5. Side air holes, 6. Membrane sleeve, 7. Bottom air holes, 8. MBR membrane, 9. Manhole, 10. Outlet pipe. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] like Figure 1 As shown, an efficient "MBBR+MBR" sewage treatment equipment is characterized by including an air inlet pipe, an aeration plate bracket, an aeration plate, MBBR filler, side air holes, a membrane sleeve, bottom air holes, MBR membrane, a steel manhole, and an outlet pipe; the air inlet pipe is connected to the aeration plate; the aeration plate bracket and the aeration plate are fixed by welding with ABS engineering plastic; the bottom air holes are installed at the bottom of the membrane sleeve, and the side air holes are distributed around the membrane sleeve and are evenly arranged; the MBR membrane is fixed to the upper and lower sections of the membrane sleeve by hot melting; the membrane sleeve is fixed above the aeration plate by angle steel; each membrane sleeve is covered with MBBR filler; the outlet pipe is connected to the MBR membrane center pipe in the membrane sleeve through a steel hose; the steel manhole is installed on the top of the equipment and fixed by welding.

[0021] The air inlet pipe is made of ABS engineering plastic and is connected to the aeration plate through an ABS pipe.

[0022] The aeration plate bracket is located below the aeration plate and is fixed to the equipment base plate by self-tapping screws.

[0023] The bottom air hole at the bottom of the membrane sleeve adopts an inverted triangle design, and the aperture of the lower hole of the inverted triangle is twice the aperture of the upper hole.

[0024] The aperture of the side cloth air holes is 18 mm, the diameter of the MBBR packing is 25 mm, and the MBBR packing is evenly distributed around the side cloth air holes and cannot enter the membrane filament sleeve.

[0025] The MBR membrane filaments are hollow fiber membranes with a filtration aperture of 0.1 μm, and the MBR membrane filaments and the membrane filament sleeve are fixed by hot melting.

[0026] The membrane filament sleeve is fixed by angle steel to ensure the same elevation and the same height of the upper and lower cross-sections.

[0027] The water outlet pipe is connected to the central pipe of the MBR membrane filaments inside the membrane filament sleeve. The connection method is a steel wire hose, and both ends are tightened by stainless steel clamps.

[0028] Two sets of steel manholes are installed at the top of the equipment, symmetrically front and back, above the water outlet pipe, and the valve on the water outlet pipe is located inside the steel manhole.

[0029] An efficient "MBBR + MBR" sewage treatment equipment installs an aeration disc at the bottom, installs a hollow fiber membrane in the form of an MBR sleeve above the aeration disc, and the inside of the equipment is covered with MBR fluidized bed packing all around. And through the aeration disc, it can not only provide dissolved oxygen but also play a role in flushing the MBR membrane, eliminating the need for a separate aeration tank, saving floor space and energy consumption, and fundamentally solving the disadvantages of high energy consumption in the MBR process and large floor space required for a separate secondary sedimentation tank in MBBR.

[0030] In the description of this specification, the description referring to the term "embodiment" means that the specific method, device or feature described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above term does not necessarily refer to the same embodiment or example. Moreover, the specific features, methods, devices or features described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient "MBBR + MBR" sewage treatment device, characterized in that, It includes an intake pipe (1), an aeration disc support (2), an aeration disc (3), MBBR packing (4), side air holes (5), a membrane filament sleeve (6), bottom air holes (7), MBR membrane filaments (8), a steel manhole (9), and an outlet pipe (10); the intake pipe (1) is connected to the aeration disc (3); the aeration disc support (2) and the aeration disc (3) are fixed by welding with ABS engineering plastics; the bottom air holes (7) are installed at the bottom of the membrane filament sleeve (6), and the side air holes (5) are distributed around the membrane filament sleeve (6) and arranged evenly; the MBR membrane filaments (8) are fixed to the upper and lower cross-sections of the membrane filament sleeve (6) by hot melting; the membrane filament sleeve (6) is fixed above the aeration disc (3) by angle steel; each membrane filament sleeve (6) is surrounded by MBBR packing (4); the outlet pipe (10) is connected to the central pipe of the MBR membrane filaments (8) inside the membrane filament sleeve (6) through a steel wire hose; the steel manhole (9) is installed at the top of the equipment and fixed by welding.

2. The efficient "MBBR + MBR" sewage treatment equipment according to claim 1, characterized in that: The intake pipe (1) is made of ABS engineering plastics and is butt-connected to the aeration disc (3) through an ABS pipe.

3. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: The aeration disc support (2) is located below the aeration disc (3), and the aeration disc support (2) is fixed to the equipment bottom plate by self-tapping screws.

4. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: The bottom air holes (7) at the bottom of the membrane filament sleeve (6) adopt an inverted triangle design, and the aperture of the lower hole of the inverted triangle is twice that of the upper hole.

5. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: The aperture of the side air holes (5) is 18 mm, the diameter of the MBBR packing (4) is 25 mm, and the MBBR packing (4) is evenly distributed around the side air holes (5) and cannot enter the membrane filament sleeve (6).

6. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: The MBR membrane filaments (8) adopt hollow fiber membranes with a filtration aperture of 0.1 μm, and the MBR membrane filaments (8) are fixed to the membrane filament sleeve (6) by hot melting.

7. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: The membrane filament sleeve (6) is fixed by angle steel to ensure the same elevation and the same height of the upper and lower cross-sections.

8. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: The outlet pipe (10) is connected to the central pipe of the MBR membrane filaments (8) inside the membrane filament sleeve (6), and the connection method adopts a steel wire hose, and both ends are tightened by stainless steel clamps.

9. An efficient "MBBR + MBR" sewage treatment device according to claim 1, characterized in that: Two sets of steel manholes (9) are installed at the top of the equipment, symmetrically front and back, above the outlet pipe (10), and the valve on the outlet pipe (10) is located inside the steel manhole (9).

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