Integrated kitchen wastewater treatment equipment

Abstract

The utility model discloses integrated kitchen wastewater treatment equipment which comprises a shell with an unclosed top surface, a supporting assembly is arranged below the shell, the interior of the shell is divided into a degassing tank, a coagulation tank and a sedimentation tank which are sequentially arranged from left to right through partition plates, and wastewater sequentially passes through the degassing tank, the coagulation tank and the sedimentation tank. Wastewater can be discharged after sequentially passing through the degassing tank, the coagulation tank and the sedimentation tank, the coagulation tank is internally divided into a rapid coagulation tank and a slow flocculation tank which are arranged front and back through a partition plate, and two conical tables which are large in upper part and small in lower part and are communicated with the sedimentation tank are arranged at the bottom of the sedimentation tank left and right side by side. The whole structure is simple, and the sedimentation tank and the coagulation tank are arranged in a partitioned manner, so that wastewater treatment can be quickly and effectively realized, and continuous water inlet and outlet in a stage without sludge cleaning are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, and in particular relates to an integrated kitchen wastewater treatment device. Background Art

[0002] In order to ensure the treatment effect of kitchen wastewater, it usually undergoes at least two treatments. The first treatment is Fenton treatment. After the treatment, the wastewater enters the raw water pool for sedimentation, and then the upper layer of liquid is pumped out by a water pump to the secondary treatment equipment for secondary treatment. At present, the equipment used to achieve uninterrupted wastewater treatment is large-scale equipment, while small-scale wastewater treatment equipment has low overall treatment efficiency and cannot achieve uninterrupted water inflow and outflow during the sludge cleaning stage. Utility Model Content

[0003] The utility model proposes an integrated kitchen wastewater treatment device with a simple overall structure and high treatment efficiency, and can achieve uninterrupted water inflow and outflow in the stage of not cleaning sludge.

[0004] To this end, the technical solution adopted by the utility model is: an integrated kitchen wastewater treatment equipment, including a shell with an unclosed top surface, a support assembly is arranged under the shell, and the shell is divided into a degassing tank, a coagulation tank, and a sedimentation tank arranged from left to right by a partition and through which wastewater passes in sequence, and the wastewater can be discharged after passing through the degassing tank, the coagulation tank and the sedimentation tank in sequence. The coagulation tank is divided into a fast coagulation tank and a slow flocculation tank arranged in front and behind by a partition, and two conical platforms with a larger upper part and a smaller lower part and connected to the sedimentation tank are arranged side by side on the bottom of the sedimentation tank.

[0005] As a preferred embodiment of the above scheme, a first guide tank is arranged on the side of the slow flocculation tank away from the rapid coagulation tank, a first through hole is arranged at the lower end of the first guide tank and the lower end of the degassing tank, and a first pipe connected to the rapid coagulation tank is arranged near the lower end of the first guide tank, and the top surface of the partition between the slow flocculation tank and the rapid coagulation tank is lower than the top surface of the partition between the rapid coagulation tank and the remaining adjacent tanks.

[0006] Further preferably, the sedimentation tank includes a separation tank arranged in the middle, and water distribution tanks are arranged at the front and rear ends of the separation tank, and the water distribution tanks are located on the two inclined surfaces of the conical platform, and a second pipe connected to the separation tank is arranged near the lower end of the water distribution tank.

[0007] It is further preferred that a water collecting tank is provided at the upper end of each water distribution tank, close to the separation tank, and the top surface of the partition between the water collecting tank and the water distribution tank is not lower than the top surface of the shell, and the top surface of the partition between the water collecting tank and the separation tank is lower than the top surface of the partition between the separation tank and the remaining adjacent tanks, the bottom surface of the water collecting tank is lower than the top surface of the partition between the water collecting tank and the separation tank, and a water outlet tank is provided at the upper right end of the sedimentation tank, the water outlet tank is separated from the sedimentation tank by a partition, and the top surface of the partition between the water collecting tank and the water outlet tank is lower than the top surface of the partition between the water collecting tank and the remaining adjacent tanks, and the bottom of the water outlet tank is lower than the top surface of the water collecting tank.

[0008] Further preferably, a water inlet for wastewater to enter is provided at the upper left end of the degassing tank, and a water outlet for purified water to flow out is provided at the upper right end of the outlet tank.

[0009] Further preferably, a plurality of baffles are obliquely arranged in the separation tank, and the upper end of each baffle coincides with the lower end of an adjacent baffle, and the lower end of each baffle coincides with the upper end of an adjacent baffle on the same vertical plane, and the second pipeline is located below the baffle.

[0010] Further preferably, the upper end of the partition between the separation tank and the water collection tank is configured in a sawtooth shape.

[0011] Further preferably, a second diversion tank is arranged between the sedimentation tank and the coagulation tank, a second through hole connected to the slow flocculation tank is arranged near the lower end of the second diversion tank, and a third through hole for connecting to the sedimentation tank is arranged near the lower end of the second diversion tank.

[0012] Further preferably, the lower ends of the double cones of the sedimentation tank are both provided with slag discharge ports, and the bottoms of the coagulation tank and the degassing tank are both provided with emptying ports.

[0013] Further preferably, the rapid coagulation tank and the slow flocculation tank are both provided with stirring components for accelerating dissolution, the bottom of the degassing tank is equipped with an air pump for filling air, and the degassing tank, the rapid coagulation tank and the slow flocculation tank are equipped with adding components for automatically adding alkali solution, coagulant or flocculant.

[0014] Beneficial effects of the utility model:

[0015] 1) The whole structure is simple. By zoning the sedimentation tank and the coagulation tank, it can quickly and effectively treat the wastewater, thereby achieving uninterrupted water inflow and outflow during the non-sludge cleaning stage.

[0016] 2) The sedimentation tank is set as a double cone, and a baffle is installed in the sedimentation tank, so that the fluid flowing into the sedimentation tank will form a backflow in the middle section, making it easier for the subsequent sedimentation liquid to enter the baffle area, thereby improving the utilization rate of the baffle. In addition, the double cone sedimentation tank is more conducive to sludge discharge than the single cone sedimentation tank, effectively preventing sludge settling and upflow overflow or sludge reflux to reduce the utilization rate of drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model.

[0018] Figure 2 for Figure 1 Top view of the water flow (arrow indicates the direction of water flow).

[0019] Figure 3 for Figure 1 Side view of the device (arrow indicates the direction of water flow).

[0020] Figure numerals: shell-1, partition-2, degassing tank-3, coagulation tank-4, rapid coagulation tank-4a, slow flocculation tank-4b, first diversion tank-4c, sedimentation tank-5, separation tank-5a, water collecting tank-5b, water distribution tank-5c, water outlet tank-6, water inlet pipe-7, water outlet pipe-8, baffle-9, second diversion tank-10, slag discharge port-11, emptying port-12. DETAILED DESCRIPTION

[0021] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0022] like Figure 1-Figure 3 As shown, an integrated kitchen wastewater treatment device is mainly composed of a shell 1 with an unclosed top surface and a support assembly for supporting the shell 1, wherein the support assembly is a prior art, and can be supported by a column and a foot pad, or by a column and a universal wheel with a locking structure, or a single column structure. The shell 1 is divided into a degassing tank 3, a coagulation tank 4, and a sedimentation tank 5, which are arranged from left to right and through which wastewater passes in sequence, and the wastewater is discharged after passing through the degassing tank 3, the coagulation tank 4, and the sedimentation tank 5 in sequence.

[0023] In order to improve the treatment efficiency and sedimentation rate, the coagulation tank 4 is divided into a rapid coagulation tank 4a and a slow flocculation tank 4b arranged in front and behind by a partition 2, and a first guide tank 4c is arranged on the side of the slow flocculation tank 4b away from the rapid coagulation tank 4a. In order to realize the circulation of wastewater, a first through hole is arranged at the lower end of the first guide tank 4c and the lower end of the degassing tank 3, and a first pipe connected to the rapid coagulation tank 4a is arranged near the lower end of the first guide tank 4c, so that the liquid in the first guide tank can smoothly enter the rapid coagulation tank. The top surface of the partition between the slow flocculation tank 4b and the rapid coagulation tank 4a is lower than the top surface of the partition between the rapid coagulation tank 4a and the other adjacent tanks, so that the liquid in the rapid coagulation tank can enter the slow flocculation tank from above.

[0024] The sedimentation tank 5 includes a separation tank 5a disposed in the middle, and a water distribution tank 5c is disposed at both ends of the separation tank 5a, and the water distribution tank 5c is located on the two inclined surfaces of the cone, and a second pipe connected to the separation tank 5a is disposed near the lower end of the water distribution tank 5c. The water distribution tanks are disposed on both sides of the separation tank, so that water can enter through the method of uniform water inflow at both ends, so that the overall high-speed water flow is closest to the bottom of the baffle, so that it can enter the basin where each sedimentation baffle is located more uniformly, improve the utilization rate of the sedimentation baffle, change the rising flow rate, accelerate the sedimentation rate of suspended matter, and achieve the purpose of increasing the SS removal rate.

[0025] A second diversion tank 10 is provided between the sedimentation tank 5 and the coagulation tank 4, and a second through hole connected to the slow flocculation tank is provided near the lower end of the second diversion tank 10, and a third through hole for connecting to the sedimentation tank is provided near the lower end of the second diversion tank 10, and the third through hole is provided on the left wall of the water distribution tank. A diversion tank is provided before the sedimentation tank and before the coagulation tank, which can directly precipitate large particles of sludge and prevent sludge backflow, and the equipment of the second diversion tank is convenient for effective water distribution at both ends.

[0026] The sedimentation tank 5 includes a separation tank 5a disposed in the middle, a water collecting tank 5b is disposed at both ends of the separation tank 5a, and a water distribution tank 5c is disposed at the front and rear outer sides of each water collecting tank 5b, and the partition between the separation tank 5a and the water collecting tank is lower than the height of the partition between the separation tank and the other adjacent tanks, so that the liquid above the separation tank flows into the water collecting tank through the partition. A second pipe connected to the separation tank 5a is disposed near the lower end of the water distribution tank 5c, and a third through hole is disposed on the left side of the two water distribution tanks, so that the liquid in the second diversion tank can enter the separation tank.

[0027] In order to facilitate the collection of liquid without sediment after precipitation, a water collecting tank 5b is provided on the upper end of each water distribution tank 5c near the side of the separation tank, and the top surface of the partition between the water collecting tank 5b and the water distribution tank 5c is not lower than the top surface of the shell, and the top surface of the partition between the water collecting tank 5b and the separation tank 5a is lower than the top surface of the partition between the separation tank and the other adjacent tanks, and the bottom surface of the water collecting tank 5b is lower than the top surface of the partition between the water collecting tank 5b and the separation tank 5a. At the same time, a water outlet tank 6 is provided at the upper right end of the sedimentation tank 5, and the water outlet tank 6 is separated from the sedimentation tank 5 by a partition, and the top surface of the partition between the water collecting tank 5b and the water outlet tank 6 is lower than the top surface of the partition between the water collecting tank 5b and the other adjacent tanks, and the bottom of the water outlet tank 6 is lower than the top surface of the water collecting tank 5b. The setting of the water collecting tank and the water outlet tank is equivalent to adding two sedimentation tanks, which can further improve the water quality of the effluent.

[0028] In order to prevent larger particles from entering the water collection tank, the upper end of the partition between the separation tank 5a and the water collection tank 5b is set to be a sawtooth shape, thereby further improving the water quality of the effluent.

[0029] In order to realize the entry of wastewater and discharge of treated water into the treatment equipment, an inlet pipe 7 for wastewater entry is provided at the upper left end of the degassing tank 3, and an outlet pipe 8 for purified water outflow is provided at the upper right end of the outlet tank 6.

[0030] In order to facilitate the cleaning of the equipment, a slag discharge port 11 is provided at the lower end of the double cones of the sedimentation tank 5 , and an emptying port 12 is provided at the bottom of the coagulation tank 4 and the degassing tank 3 .

[0031] In order to improve the sedimentation effect, a plurality of baffles 9 are arranged obliquely in the separation tank 5a, and the upper end of each baffle 9 and the lower end of the adjacent baffle 9, and the lower end of each baffle 9 and the upper end of the adjacent baffle 9 overlap on the same vertical plane. Preferably, the second pipeline is located below the baffle, and the angle between the baffle and the horizontal direction is 60°.

[0032] A baffle is provided in the separation tank, and a double cone is provided at the lower end of the separation tank, which not only facilitates sludge discharge and effectively prevents sludge settling and rising flow from overflowing or sludge reflux to reduce the utilization rate of drugs, but also enables the fluid to reflux in the middle section, making it easier for the subsequent sedimentation liquid to enter the baffle area, thereby improving the utilization rate of the baffle.

[0033] Usually wastewater is stored in a pool in advance, and hydrogen peroxide is added during storage for Fenton treatment. Therefore, a separate degassing pool is set up, and an air pump is installed at the bottom of the degassing pool. The air pump is used to inject air into the wastewater to remove residual hydrogen peroxide, so that it can solve the impact of hydrogen peroxide on the subsequently added coagulants and polymer flocculants.

[0034] In order to accelerate the dissolution of coagulants and flocculants, stirring components are provided on the coagulation tank and the degassing tank. The stirring components are prior art and can adopt the structure of a motor and a stirring shaft. The degassing tank 3, the rapid coagulation tank 4a and the slow flocculation tank 4b are equipped with adding components for automatically adding alkali solution, coagulant or flocculant. When the added substance is liquid, it can be added in the form of a metering pump. When the added substance is solid, it needs to be added continuously, so a screw conveyor is used to add it. At the same time, it is also equipped with a control system for controlling the operation of the stirring component and the adding component.

[0035] Preferably, the first through hole, the second through hole, the third through hole, the first pipe and the second pipe are all arranged obliquely along the direction of water flow and arranged in the lower middle part of the corresponding pool. At the same time, the first through hole is higher than the first pipe, and the heights of the second through hole, the third through hole and the second pipe are successively reduced to facilitate reaction and preliminary precipitation and filtration.

[0036] After Fenton treatment, the wastewater enters the raw water pool, and then enters the degassing pool through the water inlet pipe through the water pump. The pH value is adjusted by continuously adding alkali solution in the dehydration pool, and the residual hydrogen peroxide is removed by continuously flushing air through the air pump. Then, the wastewater reaches the first diversion pool through the first through hole, and then reaches the rapid coagulation pool through the first pipeline. Coagulant is added in the rapid coagulation pool, and the rapid stirring of the stirring component can make the coagulant quickly contact and react with the water-soluble pollutants to condense into tiny insoluble substances. When the liquid level in the rapid coagulation pool is higher than the height of the partition between the rapid coagulation pool and the slow flocculation pool, the liquid will enter the slow flocculation pool. By continuously adding flocculant in the slow flocculation pool and slowly stirring the stirring component, the flocculant can use its strong adsorption and bridging effect to improve the floc structure, so that the fine and loose micro particles become coarse and dense alum flowers. Then it enters the second diversion tank through the second through hole, and enters the two water distribution tanks through the third through hole, and then enters the separation tank through the second pipe. When the liquid level in the separation tank is higher than the height of the separation tank and the water collection tank, it can flow evenly into the water collection tanks on both sides, and enter the outlet tank after reaching a certain height in the water collection tank, and finally discharge the treated liquid through the outlet pipe of the outlet tank. After a period of treatment, it is necessary to stop the machine and clean the sludge through the emptying port and the sewage outlet.

Claims

1. An integrated kitchen wastewater treatment device, comprising a shell (1) whose top surface is not closed, a support assembly is arranged below the shell (1), the shell (1) is divided into a degassing tank (3), a coagulation tank (4), and a sedimentation tank (5) arranged from left to right by a partition (2) and through which wastewater passes in sequence, and wastewater can be discharged after passing through the degassing tank (3), the coagulation tank (4), and the sedimentation tank (5) in sequence, and the characteristics are: The coagulation tank (4) is divided into a rapid coagulation tank (4a) and a slow flocculation tank (4b) arranged in front and back by a partition (2), and two conical platforms with a larger upper part and a smaller lower part and connected to the sedimentation tank are arranged side by side at the bottom of the sedimentation tank (5).

2. The integrated kitchen wastewater treatment equipment according to claim 1, characterized in that: A first guide tank (4c) is arranged on the side of the slow flocculation tank (4b) away from the fast coagulation tank (4a), a first through hole is arranged at the lower end of the first guide tank (4c) and the lower end of the degassing tank (3), and a first pipe connected to the fast coagulation tank (4a) is arranged near the lower end of the first guide tank (4c), and the top surface of the partition between the slow flocculation tank (4b) and the fast coagulation tank (4a) is lower than the top surface of the partition between the fast coagulation tank (4a) and the other adjacent tanks.

3. The integrated kitchen wastewater treatment equipment according to claim 1, characterized in that: The sedimentation tank (5) comprises a separation tank (5a) arranged in the middle, and water distribution tanks (5c) are arranged at both the front and rear ends of the separation tank (5a), and the water distribution tanks (5c) are located on two inclined surfaces of the conical platform, and a second pipeline communicating with the separation tank (5a) is arranged near the lower end of the water distribution tank (5c).

4. The integrated kitchen wastewater treatment equipment according to claim 3, characterized in that: A water collecting tank (5b) is arranged at the upper end of each water distribution tank (5c) near the separation tank, and the top surface of the partition between the water collecting tank (5b) and the water distribution tank (5c) is not lower than the top surface of the shell, and the top surface of the partition between the water collecting tank (5b) and the separation tank (5a) is lower than the top surface of the partition between the separation tank and the remaining adjacent tanks, and the bottom surface of the water collecting tank (5b) is lower than the top surface of the partition between the water collecting tank (5b) and the separation tank (5a). A water outlet tank (6) is arranged at the upper right end of the sedimentation tank (5), and the water outlet tank (6) is separated from the sedimentation tank (5) by a partition, and the top surface of the partition between the water collecting tank (5b) and the water outlet tank (6) is lower than the top surface of the partition between the water collecting tank (5b) and the remaining adjacent tanks, and the bottom of the water outlet tank (6) is lower than the top surface of the water collecting tank (5b).

5. The integrated kitchen wastewater treatment equipment according to claim 4, characterized in that: The upper left end of the degassing tank (3) is provided with an inlet pipe opening (7) for waste water to enter, and the upper right end of the outlet tank (6) is provided with an outlet pipe opening (8) for purified water to flow out.

6. The integrated kitchen wastewater treatment equipment according to claim 3, characterized in that: A plurality of baffles (9) are obliquely arranged in the separation tank (5a), and the upper end of each baffle (9) and the lower end of an adjacent baffle (9), and the lower end of each baffle (9) and the upper end of an adjacent baffle (9) overlap on the same vertical plane.

7. The integrated kitchen wastewater treatment equipment according to claim 3, characterized in that: The upper end of the partition between the separation tank (5a) and the water collection tank (5b) is configured in a sawtooth shape.

8. The integrated kitchen wastewater treatment equipment according to claim 1 or 3, characterized in that: A second guide tank (10) is provided between the sedimentation tank (5) and the coagulation tank (4); a second through hole connected to the slow flocculation tank is provided near the lower end of the second guide tank (10); and a third through hole for connecting to the sedimentation tank is provided near the lower end of the second guide tank (10).

9. The integrated kitchen wastewater treatment equipment according to claim 1, characterized in that: The lower ends of the double cones of the sedimentation tank (5) are both provided with slag discharge ports (11), and the bottoms of the coagulation tank (4) and the degassing tank (3) are both provided with emptying ports (12).

10. The integrated kitchen wastewater treatment equipment according to claim 1, characterized in that: The rapid coagulation tank (4a) and the slow flocculation tank (4b) are both provided with a stirring assembly for accelerating dissolution, the bottom of the degassing tank (3) is provided with an air pump for filling air, and the degassing tank (3), the rapid coagulation tank (4a) and the slow flocculation tank (4b) are provided with an adding assembly for automatically adding alkali solution, coagulant or flocculant.

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