Washing sewage treatment system based on MABR process

Abstract

The utility model discloses a washing sewage treatment system based on the MABR process, which comprises a regulating tank and an anaerobic tank arranged at the lower level of the regulating tank, the top of the regulating tank is connected with an acid-base dosing system through a pipeline, and a water impeller is arranged on one side, close to the acid-base dosing system, of an inner cavity of the regulating tank. A lifting pump is arranged on the other side of the inner cavity of the adjusting tank. According to the sewage treatment device, the acid-base dosing system is used for dosing into the regulating tank, so that sewage in the regulating tank is neutralized to keep neutral, the condition of poor sewage treatment effect caused by over-acidity or over-alkalinity is avoided, and toxic substances are decomposed by utilizing microorganisms on suspended filler in the anaerobic tank; and the decomposed sewage enters the aerobic tank, oxygen is introduced into the MABR membrane assembly by using the fan, so that the oxygen is diffused into the aerobic tank, decomposed toxic substances are absorbed by using aerobic bacteria, and finally, the decomposed toxic substances are discharged into the sedimentation tank for solid-liquid separation, so that the sewage treatment effect is effectively improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a washing wastewater treatment system based on MABR technology. Background Technology

[0002] Laundry wastewater contains a large amount of surfactants, which disrupt the balance of the aquatic ecosystem, inhibit the growth and reproduction of microorganisms in the water, and lead to water quality deterioration. Therefore, it needs to be treated before discharge. Existing laundry wastewater treatment processes generally have problems such as high biological toxicity, alkalinity, poor biodegradability, and the generation of a large amount of foam during treatment, which can overflow the treatment system and pollute the environment. To address these issues, a laundry wastewater treatment system based on the MABR process is proposed. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows:

[0005] A wastewater treatment system based on MABR technology includes an equalization tank and an anaerobic tank located below the equalization tank. A pH meter is inserted in the middle of the equalization tank, and an acid-base dosing system is connected to the top of the equalization tank via a pipe. A flow promoter is installed on the side of the equalization tank near the acid-base dosing system, and a lift pump is installed on the other side of the equalization tank. The output pipe of the lift pump is connected to the anaerobic tank, which is filled with suspended packing material. A grid partition is installed between the suspended packing material and the output pipe of the lift pump in the anaerobic tank. An aerobic tank is connected to the rear of the anaerobic tank, and an MABR membrane module is installed in the aerobic tank. A sedimentation tank is connected to the rear of the aerobic tank, and a blower is connected to the bottom of the MABR membrane module.

[0006] Preferably, a flow promoter is also provided at the front end of the anaerobic tank and the aerobic tank, and the flow promoter provided inside the anaerobic tank is located on the left side of the grid partition.

[0007] Preferably, the MABR membrane module does not generate bubbles when aerating washing wastewater.

[0008] Preferably, the sedimentation tank has a drain outlet at the top, and the sedimentation tank is connected to the bottom of the aerobic tank.

[0009] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0010] In this invention, an acid-base dosing system is used to add chemicals to the equalization tank, neutralizing the wastewater inside and maintaining it at a neutral pH. This avoids poor wastewater treatment results caused by excessive acidity or alkalinity. Then, microorganisms on the suspended packing material in the anaerobic tank decompose toxic substances. The decomposed wastewater then enters the aerobic tank, where oxygen is introduced into the MABR membrane module using a blower, thus diffusing into the aerobic tank. Aerobic bacteria absorb the decomposed toxic substances, and the wastewater is finally discharged into a sedimentation tank for solid-liquid separation. This effectively improves the wastewater treatment efficiency and enhances the practicality of the device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0012] Figure label:

[0013] 1. Equalization tank; 2. pH meter; 3. Acid-base dosing system; 4. Flow promoter; 5. Booster pump; 6. Anaerobic tank; 7. Suspended packing material; 8. Bar screen; 9. Aerobic tank; 10. MABR membrane module; 11. Blower; 12. Sedimentation tank. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0015] The following describes, with reference to the accompanying drawings, some embodiments of a washing wastewater treatment system based on the MABR process.

[0016] Example:

[0017] Combination Figure 1As shown, this utility model provides a washing wastewater treatment system based on MABR technology, including an equalization tank 1 and an anaerobic tank 6 located below the equalization tank 1. A pH meter 2 is inserted into the middle of the equalization tank 1, and an acid-base dosing system 3 is connected to the top of the equalization tank 1. A flow booster 4 is installed on the side of the inner cavity of the equalization tank 1 near the acid-base dosing system 3, and a lift pump 5 is installed on the other side of the inner cavity of the equalization tank 1. The output pipe of the lift pump 5 is connected to the anaerobic tank 6, and the interior of the anaerobic tank 6 is filled with suspended packing material 7. The suspended packing material 7 in the anaerobic tank 6 is connected to the output pipe of the lift pump 5. A grid partition 8 is installed between the anaerobic tank 6 and the aerobic tank 9. An aerobic tank 9 is connected to the rear side of the anaerobic tank 6 and the front end of the aerobic tank 9. The aerobic tank 6 is equipped with a propeller 4 located to the left of the grid partition 8. The aerobic tank 9 is equipped with a MABR membrane module 10. The MABR membrane module 10 aerates the washing wastewater without generating bubbles. A sedimentation tank 12 is connected to the rear side of the aerobic tank 9. A blower 11 is connected to the bottom of the MABR membrane module 10. A drain outlet is opened at the top of the sedimentation tank 12, and the bottom of the sedimentation tank 12 is connected to the bottom of the aerobic tank 9.

[0018] Specifically, the grid baffle 8 installed in the anaerobic tank 6 plays a role in isolating and protecting the suspended packing material 7, preventing a large amount of washing wastewater from directly impacting the suspended packing material 7 and causing the microbial community to be washed away, thus improving the reliability of the structure.

[0019] In addition, the flow booster 4 installed in the aerobic tank 9 is activated periodically to flush the surface of the MABR membrane module 10 with water flow, preventing clogging and enabling the device to operate continuously without shutdown, thus improving the device's working efficiency.

[0020] The working principle and usage process of this utility model are as follows: First, the washing wastewater is collected and enters the equalization tank 1. The dosage of the acid-base dosing system 3 is controlled by the pH meter 2 installed in the equalization tank. The agent and wastewater are mixed and the water quality is adjusted by the flow booster 4 installed in the equalization tank, bringing the pH of the washing wastewater to neutral. Then, the lift pump 5 pumps the washing wastewater into the anaerobic tank 6 for anaerobic hydrolysis. The suspended packing material 7 tumbles and flows under the action of the flow booster 4, allowing the microorganisms attached to the suspended packing material 7 to capture and neutralize the toxic substances in the washing wastewater. The wastewater, after being hydrolyzed in the anaerobic tank 6, is decomposed into biodegradable small molecules and enters the aerobic tank 9. The MABR membrane module 10, located in the aerobic tank 9, is supplied with oxygen by the blower 11 under high pressure. Oxygen is supplied to the aerobic bacteria attached to the MABR membrane module 10 without forming bubbles. The aerobic bacteria then decompose and absorb the small molecules in the wastewater. Finally, the wastewater flows into the sedimentation tank 12 for solid-liquid separation, and the supernatant is discharged after meeting the standards.

[0021] It is understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A wastewater treatment system based on MABR technology, comprising an equalization tank (1) and an anaerobic tank (6) disposed below the equalization tank (1), characterized in that, A pH meter (2) is inserted in the middle of the conditioning tank (1). An acid-base dosing system (3) is connected to the top pipe of the conditioning tank (1). A flow booster (4) is installed on the side of the inner cavity of the conditioning tank (1) close to the acid-base dosing system (3). A lift pump (5) is installed on the other side of the inner cavity of the conditioning tank (1). The output pipe of the lift pump (5) is connected to the anaerobic tank (6). The anaerobic tank (6) is filled with suspended packing material (7). A grid partition (8) is installed between the suspended packing material (7) in the anaerobic tank (6) and the output pipe of the lift pump (5). An aerobic tank (9) is connected to the rear side of the anaerobic tank (6). A MABR membrane module (10) is installed in the aerobic tank (9). A sedimentation tank (12) is connected to the rear side of the aerobic tank (9). A blower (11) is connected to the bottom of the MABR membrane module (10).

2. The washing wastewater treatment system based on MABR process according to claim 1, characterized in that, The front end of the anaerobic tank (6) and the aerobic tank (9) is also provided with a flow booster (4), and the flow booster (4) provided inside the anaerobic tank (6) is located on the left side of the grid partition (8).

3. The washing wastewater treatment system based on MABR process according to claim 1, characterized in that, The MABR membrane module (10) aerates the washing wastewater without generating bubbles.

4. A washing wastewater treatment system based on MABR process according to claim 1, characterized in that, The sedimentation tank (12) has a drain outlet at the top and is connected to the bottom of the aerobic tank (9).

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