CN219117312U

CN219117312U - Kitchen sewage combined treatment mechanism

Info

Publication number: CN219117312U
Application number: CN202320271082.8U
Authority: CN
Inventors: 任国英
Original assignee: Nanjing Linyi Kitchen Technology Co ltd
Current assignee: Nanjing Linyi Kitchen Technology Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-06-02
Anticipated expiration: 2033-02-21

Abstract

The utility model discloses a kitchen sewage combined treatment mechanism, which comprises: the reservoir is internally provided with a reservoir submersible pump and a stirrer; the ozone tank is internally provided with an ozone tank submersible pump, an ozone aeration pipe and a plurality of ozone aeration heads connected with the ozone aeration pipe, and is externally connected with an ozone machine connected with the ozone aeration pipe; the biochemical tank is internally provided with an air aeration pipeline and a plurality of air aeration heads connected with the air aeration pipeline, the biochemical tank is externally connected with a blast aerator connected with the air aeration pipeline, and biological filler is filled in the biochemical tank; the pH adjusting system comprises a pH monitoring device and an automatic alkali liquor adding device connected with the alkali liquor feeding port. The utility model has good treatment effect on the sewage generated by the restaurant wastewater through coarse filtration or the kitchen garbage disposer, and the main process for removing pollutants in the sewage is a biological process, so that the sewage is not troublesome to the subsequent treatment and the environment is not damaged.

Description

Kitchen sewage combined treatment mechanism

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a kitchen sewage combined treatment mechanism.

Background

The kitchen sewage has high oil content, and the concentration of pollutants such as organic matters, ammonia nitrogen, total phosphorus, suspended matters and the like is high, and the fluctuation of water quality and water quantity is large, so that the treatment difficulty is high. Because the centralized comprehensive treatment of the kitchen waste is started at home, the kitchen sewage treatment has no mature treatment mode and centralized treatment, and the kitchen sewage is generally split into municipal sewage plants for treatment after the pretreatment of the kitchen waste. Because of the characteristics of high concentration, grease and the like, the municipal sewage plants are difficult to treat, and even the system is crashed. Therefore, we propose a kitchen sewage combined treatment mechanism.

Disclosure of Invention

The utility model aims to provide a kitchen sewage combined treatment mechanism for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a kitchen wastewater combination treatment mechanism, comprising:

the reservoir is internally provided with a reservoir submersible pump, a stirrer, an alkali liquor feed inlet, a demulsifier feed inlet, a PAM feed inlet and a PAC feed inlet;

the ozone tank is internally provided with an ozone tank submersible pump, an ozone aeration pipe and a plurality of ozone aeration heads connected with the ozone aeration pipe, and is externally connected with an ozone machine connected with the ozone aeration pipe;

the dehydrator is an external sludge spiral shell stacking machine and is connected between the reservoir submersible pump and the ozone tank water inlet on the side edge of the upper part of the ozone tank through a pipeline I;

the biochemical tank is internally provided with an air aeration pipeline and a plurality of air aeration heads connected with the air aeration pipeline, the biochemical tank is externally connected with a blast aerator connected with the air aeration pipeline, and biological filler is filled in the biochemical tank;

the pH adjusting system comprises a pH monitoring device and an automatic alkali liquor adding device connected with the alkali liquor feeding port;

the dosing system comprises three sets of liquid storage barrels which are respectively connected with a demulsifier feed inlet, a PAM feed inlet and a PAC feed inlet through a pipeline III, and peristaltic pumps arranged on the pipeline III;

the ozone pool submersible pump is connected into the biochemical pool through a pipeline IV.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has good treatment effect on the sewage generated by the restaurant wastewater through coarse filtration or the kitchen garbage disposer, and the main process for removing pollutants in the sewage is a biological process, so that the sewage is not troublesome to the subsequent treatment and the environment is not damaged.

After flocculation degreasing and ozone treatment, the biochemistry is greatly improved, and the subsequent biochemical time is saved. The biochemical tank uses suspended filler to enable microorganisms to grow to form a biological film system, so that the biological film system is not easy to run off during drainage, and the long-term stability of the device for treating kitchen sewage is improved.

Drawings

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

FIG. 2 is a schematic diagram of the drug delivery system of the present utility model;

FIG. 3 is a schematic diagram of an aeration structure of an ozone cell according to the present utility model;

FIG. 4 is a schematic diagram of the aeration structure of the biochemical tank according to the present utility model.

In the figure: 1. a blast aerator; 2. an ozone machine; 3. an ozone pool submersible pump; 4. an ozone cell vent valve; 5. an ozone pool; 6. an ozone tank water inlet; 7. a dehydrator; 8. reservoir submersible pump; 9. a pH adjustment system; 10. a reservoir blow-down valve; 11. a reservoir; 12. a biochemical pool; 13. a biochemical pool emptying valve; 14. a total water outlet valve; 15. a stirrer; 16. a demulsifier feed inlet; 17. PAC feed inlet; 18. PAM feed inlet; 19. a stirring motor; 20. a liquid storage barrel; 21. a peristaltic pump; 22. an ozone aeration head; 23. an air aeration head.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a kitchen wastewater combination treatment mechanism, comprising:

the reservoir 11 is provided with a reservoir submersible pump 8, a stirrer 15, an alkali liquor feed port, a demulsifier feed port 16, a PAM feed port 18 and a PAC feed port 17; an agitator motor 19 is fixed to the top of the reservoir 11, and the agitator 15 is driven via the agitator motor 19.

The ozone tank 5 is internally provided with an ozone tank submersible pump 3, an ozone aeration pipe and a plurality of ozone aeration heads 22 connected with the ozone aeration pipe, and the ozone tank 5 is externally connected with an ozone machine 2 connected with the ozone aeration pipe;

the dehydrator 7 is an external sludge spiral shell stacking machine, and the dehydrator 7 is connected between the reservoir submerged pump 8 and the ozone tank water inlet 6 on the upper side edge of the ozone tank 5 through a pipeline I;

the biochemical tank 12 is internally provided with an air aeration pipeline and a plurality of air aeration heads 23 connected with the air aeration pipeline, the biochemical tank 12 is externally connected with a blast aerator 1 connected with the air aeration pipeline, and the biochemical tank 12 is filled with biological filler; the biological filler is polyurethane foam biological filler with the specification of 2cm ³ The filling ratio of the polyurethane foam filler is 20-30%, and the total amount of the microbial sludge in the biochemical tank 12 is about 5-10g/L.

The pH adjusting system 9 comprises a pH monitoring device and an automatic alkali liquor adding device connected with the alkali liquor feeding port;

the dosing system comprises three sets of liquid storage barrels 20 which are respectively connected with a demulsifier feed inlet 16, a PAM feed inlet 18 and a PAC feed inlet 17 through a pipeline III, and peristaltic pumps 21 arranged on the pipeline III;

the ozone pool submersible pump 3 is connected into the biochemical pool 12 through a pipeline IV.

The flocculation operation of the sewage in the water storage tank 11 is intermittent, and the pH value and flocculation stirring are started to be regulated after the sewage is stored, and then the sewage enters the dehydrator 7 for solid-liquid separation;

the ozone machine 2 works intermittently, and after the clarified sewage of the dehydrator 7 enters the ozone tank 5, the ozone machine 2 starts to work to perform ozone aeration on the sewage, and the working time of the ozone machine 2 needs to be set according to the water quality condition;

in operation, the biochemical tank 12 aerates the sewage in air, and the aeration is stopped before the sewage is discharged to allow the sewage to stand still and precipitate for 1 hour, so that the sewage is discharged to avoid microorganism loss.

The water reservoir 11, the ozone tank 5 and the biochemical tank 12 are provided with drain holes at the height of 10cm away from the tank bottom, and the drain holes are respectively externally connected with a water reservoir emptying valve 10, an ozone tank emptying valve 4 and a biochemical tank emptying valve 13 for sewage emptying and overhauling.

After the produced kitchen sewage is collected by the reservoir 11, the pH value is firstly adjusted to be neutral (pH value is 6.5-7.5) by the pH value adjusting system, and then three medicaments of demulsifier, PAM and PAC are respectively added by the dosing system, so that the kitchen sewage is flocculated, precipitated and deoiled, and most suspended solids are removed.

The flocculated sewage is conveyed to a dehydrator 7 by a reservoir submersible pump 8, the clarified sewage is conveyed to an ozone tank 5 after solid-liquid separation, and the sewage is conveyed to a biochemical tank 12 by an ozone tank submersible pump 3 after ozone aeration of the ozone tank 5.

Air aeration is performed in the biochemical tank 12 to provide oxygen for microorganisms and to degrade contaminant microorganisms. The sewage after biochemical treatment is discharged from the total water outlet valve 14 of the kitchen sewage combined treatment mechanism.

Specifically, during use, when the kitchen sewage is collected in the water storage tank 11, the pH value of the kitchen sewage is firstly adjusted to 6.5-7.5 through the pH adjusting system 9, then medicaments (demulsifier, PAC and PAM) are respectively added into the water storage tank 11 through the peristaltic pump 21 for flocculation, and the stirrer 15 starts to work until flocculation is finished in the flocculation process. The flocculation stirring time is about 10-20 minutes after the medicament is added.

The flocculated sewage is conveyed to a dehydrator 7 by a reservoir submersible pump, the dehydrated clarified sewage enters an ozone tank 5, and the retention time of the sewage in the ozone tank is 1-2g O according to the ozone aeration rate ₃ And (3) calculating the ratio of (L) to (h). The sewage after ozone treatment is transported to the biochemical tank 12 by the ozone tank diving pump 3. The total microbial sludge in the biochemical tank 12 is about 5-10g/L (MLSS), and the filling ratio of the polyurethane foam filler is 20-30%. The blast aerator 1 in the biochemical treatment process continuously works, stops aeration before draining, and stands for 1 hour to enable suspended sludge to settle. The total water outlet valve 14 is opened to drain the supernatant. The hydraulic retention time of the sewage in the biochemical tank 12 is about 7 days.

This example applies to a throughput of 0.3m ³ And/d, the final water quality of the kitchen sewage is shown in table 1:

TABLE 1 Water quality of Inlet and outlet Main parameters

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A kitchen wastewater combination treatment mechanism, which is characterized by comprising:

the reservoir (11) is internally provided with a reservoir submersible pump (8), a stirrer (15), an alkali liquor feed port, a demulsifier feed port (16), a PAM feed port (18) and a PAC feed port (17);

the ozone tank (5) is internally provided with an ozone tank submersible pump (3), an ozone aeration pipe and a plurality of ozone aeration heads (22) connected with the ozone aeration pipe, and the ozone tank (5) is externally connected with an ozone machine (2) connected with the ozone aeration pipe;

the dehydrator (7) is an external sludge spiral shell stacking machine, and the dehydrator (7) is connected between the reservoir submersible pump (8) and the ozone tank water inlet (6) at the side edge of the upper part of the ozone tank (5) through a pipeline I;

the biochemical tank (12) is internally provided with an air aeration pipeline and a plurality of air aeration heads (23) connected with the air aeration pipeline, the biochemical tank (12) is externally connected with a blast aerator (1) connected with the air aeration pipeline, and biological fillers are filled in the biochemical tank (12);

the pH adjusting system (9) comprises a pH monitoring device and an automatic alkali liquor adding device connected with the alkali liquor feeding port;

the dosing system comprises three sets of liquid storage barrels (20) which are respectively connected with a demulsifier feed inlet (16), a PAM feed inlet (18) and a PAC feed inlet (17) through a pipeline III, and peristaltic pumps (21) arranged on the pipeline III;

the ozone pool submerged pump (3) is connected into the biochemical pool (12) through a pipeline IV.

2. A combined kitchen waste treatment mechanism according to claim 1, wherein: the biological filler is polyurethane foam biological filler with the specification of 2cm ³ The filling ratio of the polyurethane foam filler is 20-30%, and the total amount of the microbial sludge in the biochemical tank (12) is about 5-10g/L.

3. A combined kitchen waste treatment mechanism according to claim 1, wherein: the stirring motor (19) is fixed at the top of the reservoir (11), and the stirrer (15) is driven by the stirring motor (19).

4. A combined kitchen waste treatment mechanism according to claim 1, wherein: the flocculation operation of the sewage in the water storage tank (11) is intermittent operation, and pH is regulated and flocculation stirring is started after the sewage is stored, and then the sewage enters the dehydrator (7) for solid-liquid separation;

the ozone machine (2) works intermittently, and after the clarified sewage of the dehydrator (7) enters the ozone tank (5), the ozone machine (2) starts to work to perform ozone aeration on the sewage, and the working time of the ozone machine (2) needs to be set according to the water quality condition;

when the sewage treatment device works, the biochemical tank (12) carries out air aeration on sewage, aeration is stopped before water is discharged, the sewage is allowed to stand still and precipitate for 1 hour, and the microbial loss is avoided for ensuring the sewage discharge.

5. A combined kitchen waste treatment mechanism according to claim 1, wherein: the water storage tank (11), the ozone tank (5) and the biochemical tank (12) are provided with drain holes at the positions 10cm away from the tank bottom, and the drain holes are respectively externally connected with a water storage tank emptying valve (10), an ozone tank emptying valve (4) and a biochemical tank emptying valve (13) for sewage emptying and overhauling.