CN219341969U

CN219341969U - Biological wastewater treatment system

Info

Publication number: CN219341969U
Application number: CN202320911721.2U
Authority: CN
Inventors: 赵光明; 吴伟; 王寿林; 许蔚
Original assignee: Suzhou Hezhan Design And Construction Co ltd
Current assignee: Suzhou Hezhan Design And Construction Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-07-14
Anticipated expiration: 2033-04-21

Abstract

The utility model provides a biological wastewater treatment system, which comprises an inactivation device, a grid pool, a flocculation sedimentation tank, an MBR biological processor, a disinfection tank, an exhaust gas treatment device and a sludge tank, wherein bacteria, microorganisms and organic matters in biological wastewater are removed in a targeted manner, high temperature and sodium hypochlorite are adopted for twice disinfection and sterilization treatment, so that no microorganism residue in the biological wastewater is ensured, the operation is simple, convenient and efficient, continuous operation can be realized, and 600L of biological wastewater can be treated every day.

Description

Biological wastewater treatment system

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a biological wastewater treatment system.

Background

Biological wastewater produced in biochemical laboratories needs to be properly treated to be discharged. The biological wastewater has high concentration of organic matters and suspended matters, is easy to spoil and has low toxicity, and in addition, the wastewater also has a large number of harmful microorganisms, and is not subjected to scientific and effective treatment, so that the wastewater can cause eutrophication, consume a large amount of dissolved oxygen in the water and cause death of aquatic organisms. Suspended matters in the wastewater sink into the water bottom to generate gas with odor and pollute the water environment. Harmful microorganisms and eggs in the wastewater can cause disease transmission, and serious damage is caused to the ecological environment and human health. In the prior art, the treatment process is complicated, water and waste cannot be separated, and microorganism residues are easily caused.

Disclosure of Invention

The utility model aims to provide a biological wastewater treatment system

The utility model provides the following technical scheme:

the utility model provides a biological wastewater treatment system, its characterized in that includes inactivating device, grid pond, flocculation sedimentation tank, MBR biological processor, disinfection pond, exhaust-gas treatment device, mud pond, inactivating device output with through first water piping connection between the grid pond input, be equipped with first valve on the first water pipe, grid pond output with through second water piping connection between the input of flocculation sedimentation tank, be equipped with the second valve on the second water pipe, flocculation sedimentation tank bottom is equipped with first mud export, first mud export with the mud pond links to each other, flocculation sedimentation tank output with through third water piping connection between the input of MBR biological processor, be equipped with the third valve on the third water pipe, be equipped with second mud export, gaseous phase export and liquid phase export on the MBR biological processor, the second mud export with the mud pond links to each other, gaseous phase export with exhaust-gas treatment device links to each other, liquid phase export with through fourth water piping connection between the pond, be equipped with fourth valve on the fourth water piping connection.

Further, the inactivating device is a high-temperature heating device.

Further, the grid pool adopts a mechanical fine grid structure, and the grid distance is 4mm.

Further, the flocculant in the flocculation sedimentation tank is one of PAM and PAC.

Further, the disinfection tank contains sodium hypochlorite.

Further, a filter layer and a deodorizing layer are arranged in the exhaust gas treatment device.

Further, the sludge tank is connected with the first sludge outlet through a first pipeline, and a fifth valve is further arranged on the first pipeline; the sludge tank is connected with the second sludge outlet through a second pipeline, and a sixth valve is further arranged on the second pipeline.

Further, the gas phase outlet is connected with the waste gas treatment device through a gas guide pipe, and the gas guide pipe is also provided with a vent valve.

The utility model has the beneficial effects that:

the utility model aims at removing bacteria, microorganisms and organic matters in biological wastewater by relating to an inactivation device, a grating pool, a flocculation pool, an MBR biological processor, a disinfection pool and an exhaust gas treatment device, and adopts high temperature and sodium hypochlorite to disinfect and sterilize twice, so that no microorganism residue in the biological wastewater is ensured, the operation is simple, convenient and efficient, continuous operation can be realized, and 600L of biological wastewater can be treated every day.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model

Reference numerals:

1-an inactivation device; 2-grating pool; 3-flocculation sedimentation tank; a 4-MBR biological processor; 5-a disinfection tank; 6-an exhaust gas treatment device; 7-a sludge pool; 8-1 first valve, 8-2 second valve, 8-3 third valve, 8-4 fourth valve, 8-5 fifth valve, 8-6 sixth valve; 9-exhaust valve.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

The utility model provides a biological wastewater treatment system, includes inactivation device 1, grid pond 2, flocculation and precipitation pond 3, MBR biological processor 4, disinfection pond 5, exhaust treatment device 6, sludge impoundment 7, inactivation device 1 output with pass through first water piping connection between the grid pond 2 input, be equipped with first valve 8-1 on the first water pipe, grid pond 2 output with pass through second water piping connection between the input of flocculation and precipitation pond 3, be equipped with second valve 8-2 on the second water pipe, flocculation and precipitation pond bottom is equipped with first mud export, first mud export with sludge impoundment 7 links to each other, flocculation and precipitation pond output with pass through third water piping connection between the MBR biological processor's the input, be equipped with third valve 8-3 on the third water pipe, MBR biological processor is last to be equipped with second mud export, gaseous phase export and liquid phase export, the gaseous phase export with sludge impoundment 7 links to each other, the gaseous phase export with exhaust treatment device 6 links to each other, the liquid phase export with fourth water piping connection is passed through to be equipped with between the fourth water piping connection 4.

The inactivation device 1 is a high-temperature heating device.

The grid pool 2 adopts a mechanical fine grid structure, and the grid distance is 4mm.

The flocculant in the flocculation sedimentation tank 3 is one of PAM and PAC.

The disinfection tank 5 contains sodium hypochlorite.

The exhaust gas treatment device 6 is provided with a filter layer and a deodorizing layer.

The sludge pool 7 is connected with a first sludge outlet through a first pipeline, and a fifth valve 8-5 is further arranged on the first pipeline; the sludge pool 7 is connected with a second sludge outlet through a second pipeline, and a sixth valve 8-6 is further arranged on the second pipeline.

The gas phase outlet is connected with the waste gas treatment device 6 through a gas guide pipe, and the gas guide pipe is also provided with a vent valve 9.

Working principle: the laboratory biological wastewater firstly enters an inactivating device 1, a heating device is arranged in a fire extinguishing device and is used for heating the biological wastewater to 110 ℃, microorganisms and bacteria in the biological wastewater are killed, a first valve 8-1 is opened, the biological wastewater flows into a grille pool 2, the grille pool 2 filters large granular matters of the biological wastewater, a second valve 8-2 is opened, the biological wastewater enters a flocculation sedimentation tank 33, the flocculation sedimentation tank 3 contains flocculating agents, small grains in the biological wastewater are gathered and precipitated, a third valve 8-3 is opened, the biological wastewater flows into an MBR biological processor 4, macromolecular organic matters are decomposed into a gas phase solid phase and a liquid phase in the MBR biological processor 4, a fifth valve 8-5 is opened, precipitated sludge is discharged into a sludge pool 7 through a first sludge port, the generated gas is discharged into an exhaust gas treatment device 6 through a weather outlet after the MBR biological processor 4 is treated, the biological wastewater flows into the disinfection pool 5 for the next disinfection treatment, and the activated sludge in the biological wastewater of a sixth valve 8-6 is intercepted and discharged into the sludge pool 7 through a second sludge outlet. The biological wastewater reaches the sewage discharge standard after being disinfected by sodium hypochlorite in the disinfection tank 5. The generated gas reaches the exhaust emission standard after being filtered and deodorized by the exhaust gas treatment device 6. Finally, the sludge in the sludge tank 7 is transported out.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a biological wastewater treatment system, its characterized in that includes inactivating device, grid pond, flocculation sedimentation tank, MBR biological processor, disinfection pond, exhaust treatment device and mud pond, inactivating device output with through first water piping connection between the grid pond input, be equipped with first valve on the first water pipe, grid pond output with through second water piping connection between the input of flocculation sedimentation tank, be equipped with the second valve on the second water pipe, flocculation sedimentation tank bottom is equipped with first mud export, first mud export with the mud pond links to each other, flocculation sedimentation tank output with through third water piping connection between the input of MBR biological processor, be equipped with the third valve on the third water pipe, be equipped with second mud export, gaseous phase export and liquid phase export on the MBR biological processor, the second mud export with the mud pond links to each other, gaseous phase export with exhaust treatment device links to each other, liquid phase export with through fourth water piping connection between the pond, be equipped with fourth valve on the fourth water pipe.

2. The biological wastewater treatment system of claim 1, wherein the inactivation device is a high temperature heating device.

3. A biological wastewater treatment system according to claim 1, wherein the grating cells are of a mechanically fine grating structure with a grating distance of 4mm.

4. The biological wastewater treatment system of claim 1, wherein the flocculant in the flocculation precipitation tank is one of PAM and PAC.

5. The biological wastewater treatment system of claim 1, wherein the disinfection tank contains sodium hypochlorite.

6. The biological wastewater treatment system according to claim 1, wherein a filter layer and a deodorizing layer are provided in the exhaust gas treatment device.

7. The biological wastewater treatment system according to claim 1, wherein the sludge tank is connected with the first sludge outlet through a first pipeline, and a fifth valve is further arranged on the first pipeline; the sludge tank is connected with the second sludge outlet through a second pipeline, and a sixth valve is further arranged on the second pipeline.

8. The biological wastewater treatment system according to claim 1, wherein the gas phase outlet is connected with the waste gas treatment device through a gas duct, and a vent valve is further arranged on the gas duct.