Energy-saving non-aeration MBR (membrane bioreactor) integrated equipment

Abstract

The utility model discloses energy-saving non-aeration MBR (membrane bioreactor) integrated equipment, which relates to the technical field of sewage treatment, and comprises a water inlet, an MBR system is arranged on one side of the water inlet, the MBR system comprises an anoxic tank connected to one end of the water inlet; the aerobic tank is fixedly connected to one side of the anoxic tank; the MBR tank is fixedly connected to one side of the aerobic tank; and the backwashing system is connected to one side of the MBR tank, the backwashing system is used for backwashing the MBR tank, the backwashing system comprises a dosing assembly, one end of the backwashing system is connected with a water outlet, and the anoxic tank, the aerobic tank, the MBR tank and the backwashing system are all connected with a sludge tank. The MBR system is arranged, the anoxic tank, the aerobic tank, the MBR tank and the backwashing system are used for treating sewage, an aeration-free treatment process is adopted, the whole structure is simple, the occupied area is small, and the whole investment cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, especially relate to a energy -conserving type no aeration MBR integrated equipment. BACKGROUND

[0002] Because people daily life or production will produce a large amount of sewage, sewage treatment is the process that sewage reaches the water quality requirement of discharge into a water body or reuse is purified, sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, city landscape, medical treatment, catering and each field, also more and more go into the daily life of ordinary people.

[0003] At present, MBR treatment equipment is often used to treat sewage in the sewage treatment process, and the MBR treatment equipment is generally composed of multiple treatment systems, and usually includes physical filtration and chemical treatment and biological degradation.

[0004] But the above-mentioned MBR sewage treatment equipment whole structure is very complex, and the floor area is larger, for this, we put forward a kind of energy -conserving type no aeration MBR integrated equipment. INVENTION CONTENTS

[0005] The utility model discloses a kind of energy -conserving type no aeration MBR integrated equipment, by setting MBR system, utilize anoxic tank, aerobic tank, MBR tank and backwash system to treat sewage, adopt no aeration treatment process, overall structure is simple, floor area is also smaller, so that overall investment cost is also lower.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of energy -conserving type no aeration MBR integrated equipment, including inlet, the side of the inlet is provided with MBR system, the MBR system includes:

[0007] anoxic tank, the anoxic tank is connected to one end of inlet;

[0008] aerobic tank, the aerobic tank is fixedly connected to one side of anoxic tank;

[0009] MBR tank, the MBR tank is fixedly connected to one side of aerobic tank;

[0010] backwash system, the backwash system is connected to one side of MBR tank, backwash system is used to backwash MBR tank, the backwash system includes dosing assembly, one end of the backwash system is connected with water outlet, the anoxic tank, aerobic tank, MBR tank and backwash system are all connected with sludge tank.

[0011] Preferably, the inside of the anoxic tank and the inside of the aerobic tank are both provided with biological filler, and the inside of the MBR tank is provided with an MBR membrane box.

[0012] Preferably, the backwashing system comprises:

[0013] A backwashing water tank fixedly connected to one side of the MBR tank;

[0014] A first backwashing pipeline connected to one side of the backwashing water tank;

[0015] A second backwashing pipeline connected to the middle part of the first backwashing pipeline.

[0016] Preferably, the first backwashing pipeline is sequentially provided with a backwashing pump, a pressure gauge and a water production electromagnetic flowmeter, and the second backwashing pipeline is sequentially provided with a pressure transmitter, an MBR water production self-priming pump, a check valve, a sampling valve, a backwashing flowmeter and an ultraviolet disinfection pipe.

[0017] Preferably, the dosing assembly comprises a medicament tank and a metering pump connected to the medicament tank, and the metering pump is connected to the first backwashing pipeline through a connecting pipeline.

[0018] Preferably, one side of the aerobic tank and the MBR tank is further provided with a blower, a blower aeration flowmeter is installed between the blower and the aerobic tank aeration pipeline, the backwashing system further comprises an exhaust fan, and the MBR tank is further provided with a static pressure type liquid level meter and a membrane pollution control unit.

[0019] The technical effects and advantages of the utility model are as follows:

[0020] The sewage is intercepted by the grid, some suspended matters or impurities are intercepted, then enters the anoxic tank, the anoxic tank is used for denitrification, after the sewage enters the anoxic tank, is mixed with the reflux sludge, the denitrifying bacteria utilize the organic matter in the sewage as the carbon source, reduces the nitrate nitrogen to nitrogen, realizes denitrification, then enters the inside of the aerobic tank, the aerobic tank is mainly used for organic matter degradation and nitrification reaction. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is MBR system structure schematic view of the utility model.

[0022] In the figure: 1, anoxic tank; 2, air blower; 3, biological filler; 4, MBR membrane box; 5, MBR water production self-priming pump; 6, backwash pump; 7, static pressure type liquid level meter; 801, pressure transmitter; 802, pressure gauge; 9, aerobic aeration flow meter; 1001, backwash flow meter; 1002, water production electromagnetic flow meter; 11, metering pump; 12, chemical tank; 13, aerobic tank; 14, water inlet; 15, sludge tank; 16, water outlet; 17, exhaust fan; 18, ultraviolet disinfection tube; 19, check valve; 20, backwash water tank; 21, sampling valve; 22, membrane fouling control unit. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The present application provides a kind of Figure 1The energy-saving non-aeration MBR integrated device shown comprises a water inlet 14, the water inlet 14 is provided with an MBR system on one side, the MBR system comprises: an anoxic tank 1, the anoxic tank 1 is connected to one end of the water inlet 14; an aerobic tank 13, the aerobic tank 13 is fixedly connected to one side of the anoxic tank 1; an MBR tank, the MBR tank is fixedly connected to one side of the aerobic tank 13; a backwashing system, the backwashing system is connected to one side of the MBR tank, the backwashing system is used for backwashing the MBR tank, the backwashing system comprises a dosing assembly, one end of the backwashing system is connected with a water outlet 16, the anoxic tank 1, the aerobic tank 13, the MBR tank and the backwashing system are all connected with a sludge tank 15; sewage is intercepted by a grid to intercept some suspended solids or impurities, then enters the anoxic tank 1 through the water inlet 14, the anoxic tank 1 is used for denitrification, after the sewage enters the anoxic tank 1, is mixed with the return sludge, the denitrifying bacteria utilize the organic matter in the sewage as the carbon source, reduce the nitrate nitrogen to nitrogen, realize denitrification, then enters the inside of the aerobic tank 13, the aerobic tank 13 is mainly used for organic matter degradation and nitrification. After the sewage enters the aerobic tank 13, the aerobic microorganisms decompose the organic matter into carbon dioxide and water, at the same time, the ammonia nitrogen is oxidized to nitrate nitrogen by the nitrifying bacteria, then enters the MBR tank, combines biological treatment with membrane separation, the membrane assembly intercepts the sludge and suspended solids, ensures the water quality of the effluent, in the design, mechanical reciprocating motion is adopted, the membrane filaments in the MBR tank form relative motion with the mixed liquid, a soft mechanical shaking device replaces the aeration air wiping function, the membrane filaments in the MBR tank are shaken by the inertial force of the reciprocating motion, the effect of preventing the membrane in the MBR tank from being blocked is achieved, the soft mechanical shaking device can be obtained from the prior art, and will not be described here in detail, then the backwashing system backwashes the MBR tank, part of the sludge returns to the anoxic tank 1 from the MBR tank, maintains the sludge concentration of the anoxic tank 1, ensures the denitrification effect, and the remaining sludge is discharged from the system to the sludge tank 15 at regular intervals.

[0025] Further, the inside of the anoxic tank 1 and the inside of the aerobic tank 13 are both provided with biological fillers 3, and the inside of the MBR tank is provided with an MBR membrane box 4; the biological fillers 3 are added, so that the reaction efficiency is accelerated and the reaction area is increased.

[0026] Further, the backwashing system comprises: a backwashing water tank 20, the backwashing water tank 20 is fixedly connected to one side of the MBR tank; a first backwashing pipeline, the first backwashing pipeline is connected to one side of the backwashing water tank 20; a second backwashing pipeline, the second backwashing pipeline is connected to the middle of the first backwashing pipeline; the sewage is treated through the MBR tank, then enters the inside of the backwashing water tank 20, then the MBR tank is backwashed again through the first backwashing pipeline, at the same time, the MBR tank can also be backwashed by cooperating with the second backwashing pipeline, and the treated water can be discharged from the water outlet 16.

[0027] Further, the first backwash pipeline is sequentially provided with a backwash pump 6, a pressure gauge 802 and a water production electromagnetic flowmeter 1002, and the second backwash pipeline is sequentially provided with a pressure transmitter 801, an MBR water production self-suction pump 5, a check valve 19, a sampling valve 21, a backwash flowmeter 1001 and an ultraviolet disinfection tube 18; the first backwash pipeline sequentially passes through the backwash pump 6, the pressure gauge 802 and the water production electromagnetic flowmeter 1002, so as to backwash the MBR tank, and the second backwash pipeline sequentially passes through the pressure transmitter 801, the MBR water production self-suction pump 5, the check valve 19, the sampling valve 21, the backwash flowmeter 1001 and the ultraviolet disinfection tube 18, so as to backwash the MBR tank.

[0028] Further, the dosing assembly comprises a medicament tank 12 and a metering pump 11 connected with the medicament tank 12, and the metering pump 11 is connected with the first backwash pipeline through a connecting pipeline; by adding the medicament, the backwash function is realized.

[0029] Further, the aerobic tank 13 and one side of the MBR tank are further provided with a blower 2, the blower 2 is installed with an aerobic aeration flowmeter 9 between the blower 2 and an aeration pipeline of the aerobic tank 13, the backwash system further comprises an exhaust fan 17, the MBR tank is further provided with a static pressure liquid level meter 7 and a membrane pollution control unit 22, and the blower 2 provides sufficient oxygen, so as to facilitate the acceleration of treatment.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An energy-saving non-aeration MBR integrated device comprising a water inlet (14), characterized in that, One side of the water inlet (14) is provided with an MBR system, the MBR system comprises: An anoxic tank (1) connected to one end of the water inlet (14); An aerobic tank (13) fixedly connected to one side of the anoxic tank (1); An MBR tank fixedly connected to one side of the aerobic tank (13); A backwashing system connected to one side of the MBR tank, the backwashing system is used for backwashing the MBR tank, the backwashing system comprises a dosing assembly, one end of the backwashing system is connected with a water outlet (16), the anoxic tank (1), the aerobic tank (13), the MBR tank and the backwashing system are all connected with a sludge tank (15).

2. The energy-saving MBR integrated device without aeration according to claim 1, characterized in that, The inside of the anoxic tank (1) and the inside of the aerobic tank (13) are both provided with biological fillers (3), and the inside of the MBR tank is provided with an MBR membrane box (4).

3. The energy-saving MBR integrated device without aeration according to claim 1, characterized in that, The backwashing system comprises: A backwashing water tank (20) fixedly connected to one side of the MBR tank; A first backwashing pipeline connected to one side of the backwashing water tank (20); A second backwashing pipeline connected to the middle of the first backwashing pipeline.

4. The energy-saving MBR integrated device without aeration according to claim 3, characterized in that, The first backwashing pipeline is sequentially provided with a backwashing pump (6), a pressure gauge (802) and a water production electromagnetic flowmeter (1002), and the second backwashing pipeline is sequentially provided with a pressure transmitter (801), an MBR water production self-priming pump (5), a check valve (19), a sampling valve (21), a backwashing flowmeter (1001) and an ultraviolet disinfection pipe (18).

5. The energy-saving MBR integrated device without aeration according to claim 4, characterized in that, The dosing assembly comprises a medicament tank (12) and a metering pump (11) connected with the medicament tank (12), and the metering pump (11) is connected with the first backwashing pipeline through a connecting pipeline.

6. The energy-saving MBR integrated device without aeration according to claim 1, characterized in that, One side of the aerobic tank (13) and the MBR tank is also provided with a blower (2), the blower (2) is installed with an aerobic aeration flowmeter (9) between the blower (2) and the aeration pipeline of the aerobic tank (13), and the backwashing system further comprises an exhaust fan (17), and the MBR tank is further provided with a static pressure type liquid level meter (7) and a membrane pollution control unit (22).

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