CN114906992B - Ecological treatment system for kitchen waste sewage - Google Patents
Ecological treatment system for kitchen waste sewage Download PDFInfo
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- CN114906992B CN114906992B CN202210746440.6A CN202210746440A CN114906992B CN 114906992 B CN114906992 B CN 114906992B CN 202210746440 A CN202210746440 A CN 202210746440A CN 114906992 B CN114906992 B CN 114906992B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention belongs to the technical field of sewage treatment, and provides a kitchen waste sewage ecological treatment system which comprises an oil-water separation device, an anaerobic treatment device, an aeration oxidation device and an ecological treatment module; the oil-water separation device comprises a separation tank, a power oil displacement mechanism and an aeration oil displacement mechanism; an oil outlet is arranged on the separation tank, and an oil collecting and draining assembly is arranged at the oil outlet; the oil collecting and draining assembly comprises an oil collecting box and a draining pipe, one end of the draining pipe is communicated with the bottom of the oil collecting box, and the other end of the draining pipe is communicated with a water inlet of the anaerobic treatment device; the aeration oxidation device comprises an aeration oxidation tank, and a water inlet of the aeration oxidation tank is connected with a water outlet of the anaerobic treatment device; the ecological treatment module comprises a bottom water inlet cavity, a filtering structure and aquatic plants, and the bottom water inlet cavity is communicated with a water outlet of the aeration oxidation tank. The invention integrates an oil-water separation device, an anaerobic treatment device, an aeration oxidation device and an ecological treatment module, effectively improves the treatment effect on kitchen waste sewage, and has good compatibility with peripheral landscapes.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a kitchen waste sewage ecological treatment system.
Background
In recent years, with the increase of social productivity and the standard of living of people, the discharge amount of domestic sewage and the generation amount of kitchen waste are increased year by year, and huge amounts of sewage and waste are bound to be a serious threat to the ecological environment and the human life health if the sewage and waste cannot be properly treated. In cities, a considerable part of kitchen waste water is directly discharged into an urban pipe network after being simply subjected to solid-liquid filtration and separation, the urban pipe network is easily blocked due to the fact that the waste water contains a large amount of animal and vegetable oil, burden is brought to sewage treatment plants, especially, a large amount of kitchen waste water in rural life directly flows into rivers, and the rivers are polluted due to the fact that the kitchen waste water is high in oil content. The problem of environmental pollution caused by kitchen waste water has become a problem to be solved urgently in the present society.
At present, most of kitchen waste sewage treatment adopts an oil separation tank, oil in the sewage floats upwards within a certain time by utilizing the specific gravity difference of oil and water, and then the floating oil is removed, thereby achieving the effect of oil-water separation. However, a common problem with oil interceptors is: the oil-water separation effect is poor, and the odor and the pollution impurities cannot be removed, so that the environment odor is caused; and the construction of the oil separation tank is poor in integration with the surrounding environment, so that the environment is attractive.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, the present invention provides an ecological kitchen waste water treatment system, which effectively solves the problem of poor oil-water separation effect in kitchen waste water, is beneficial to improving the treatment quality of kitchen waste water, and can be integrated with the surrounding environment.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a kitchen waste sewage ecological treatment system comprises an oil-water separation device, an anaerobic treatment device, an aeration oxidation device and an ecological treatment module; the anaerobic treatment device and the aeration oxidation device are arranged outside the oil-water separation device and surround the oil-water separation device; the ecological treatment module is arranged outside the anaerobic treatment device and the aeration oxidation device and surrounds the anaerobic treatment device and the aeration oxidation device; wherein the content of the first and second substances,
the oil-water separation device comprises a separation tank, a power oil displacement mechanism and an aeration oil displacement mechanism; the power oil displacement mechanism comprises a power rod, a plurality of blades arranged on the power rod and an oil stirring driving mechanism for driving the power rod to rotate, the blades are arranged and connected to the power rod along the circumferential direction of the power rod and extend outwards along the radial direction, the power rod and the blades are arranged in the separation tank, and the power rod extends vertically; the aeration oil displacement mechanism comprises a first aeration component, the first aeration component is connected with the aeration system, and the first aeration component is arranged at the bottom of the inner cavity of the separation tank; an oil outlet is formed in the designated height of the separation tank, the oil outlet is communicated with the inner cavity of the separation tank, the height of the plurality of blades on the power rod is corresponding to that of the oil outlet, and an oil collecting and draining assembly is arranged at the oil outlet; the oil collecting and water draining component comprises an oil collecting box and a water draining pipe, the oil collecting box is connected to the outer wall of the separation tank and is positioned below the oil outlet, one end of the water draining pipe is communicated with the bottom of the oil collecting box, the other end of the water draining pipe is communicated with the water inlet of the anaerobic treatment device, and a first water draining valve is arranged on the water draining pipe;
the aeration oxidation device comprises an aeration oxidation pond and a second aeration component, and the second aeration component is connected with the aeration system; the water inlet of the aeration oxidation tank is connected with the water outlet of the anaerobic treatment device;
the ecological treatment module comprises a bottom water inlet cavity, a filtering structure and aquatic plants, wherein the bottom water inlet cavity is arranged at the bottom of the filtering structure, and the aquatic plants are planted in the filtering structure; the bottom water inlet cavity is communicated with the water outlet of the aeration oxidation tank.
Preferably, the top of the separation tank is provided with an opening, and the top of the inner cavity of the separation tank is provided with a filtering basket for filtering solid impurities in kitchen waste water.
Preferably, a flow guide assembly is arranged in the separation tank and comprises a plurality of flow guide partition plates, the flow guide partition plates are all obliquely arranged, the lower end of the previous flow guide partition plate corresponds to the upper end of the next flow guide partition plate along the direction from top to bottom, and a liquid passing hole is formed in the lower end of each flow guide partition plate.
Preferably, the water-facing surfaces of the diversion baffles are arranged in a wave shape.
Preferably, the first aeration assembly is arranged on the power rod; the first aeration subassembly includes a plurality of first aeration pipes, be equipped with a plurality of first aeration heads on the first aeration pipe, the one end of first aeration pipe with power rod connects, the other end of first aeration pipe radially outwards extends the setting, and is a plurality of first aeration pipe is arranged along the circumferencial direction and is connected on the power rod.
Preferably, the oil collecting box comprises an outer baffle and a bottom plate; the bottom plate is annularly arranged, the inner edge of the bottom plate is connected with the outer wall of the separation tank, and the bottom plate is positioned below the oil outlet; the outer baffle is annularly arranged, the bottom of the outer baffle is connected with the bottom plate, and the upper end of the outer baffle extends upwards; the outer baffle, the bottom plate and the outer wall of the separating tank form an oil collecting tank for temporarily storing the pulled sewage.
Preferably, the inner side of the outer baffle is provided with an oil storage piece which is arranged in an arc shape.
Preferably, the oil collecting and draining assembly further comprises an oil guide plate, the oil guide plate is arranged in a circular arc shape, and the oil guide plate is connected to the outer wall of the separation tank and located at the corresponding position of the oil outlet.
Preferably, the separation tank is arranged in a cylindrical shape; the anaerobic treatment device and the aeration oxidation tank are both in a semicircular ring shape, and the anaerobic treatment device and the aeration oxidation tank are spliced into a ring shape and are arranged outside the separation tank in a surrounding manner; the ecological treatment module is in a ring shape and is arranged outside the anaerobic treatment device and the aeration oxidation tank in a surrounding mode.
Preferably, a water distribution tank is arranged on the inner side of a water inlet cavity at the bottom of the ecological treatment module, the water distribution tank is arranged in a circular shape, and the water distribution tank is communicated with a water outlet of the aeration oxidation pond; a plurality of water distribution pipes are arranged in the bottom water inlet cavity and are arranged at equal angles along the circumferential direction; one end of each water distribution pipe is communicated with the water distribution groove, the other end of each water distribution pipe extends outwards along the radial direction, and a plurality of water outlet holes are formed in each water distribution pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. the treatment system provided by the invention integrates the oil-water separation device, the anaerobic treatment device, the aeration oxidation device and the ecological treatment module, so that the kitchen waste sewage is treated layer by layer, the treatment effect on the kitchen waste sewage is effectively improved, the integration degree is high, other structures are surrounded by the ecological treatment module, and the ecological treatment module has good compatibility with peripheral landscapes.
2. In the oil-water separation device, the power oil displacement mechanism and the aeration oil displacement mechanism are combined, after the sewage reaches a certain height (close to an oil outlet), the sewage containing a large amount of grease on the upper layer is pulled out by the power oil displacement mechanism, and the aeration effect of the aeration oil displacement mechanism is combined, so that the oil floating efficiency and speed are improved, and the oil-water separation effect in the kitchen waste sewage treatment process is further improved.
3. After the oil-water separation treatment, the sewage is continuously subjected to anaerobic treatment, aeration oxidation treatment and ecological treatment, so that the quality of the sewage finally overflowing from the ecological treatment module meets the discharge requirement, and the environment is protected.
4. According to the invention, through the arrangement of the ecological treatment module, the purification treatment of the kitchen waste sewage is combined with the ecological environment, the design is ingenious, and the improvement of the treatment effect of the kitchen waste sewage is facilitated; meanwhile, the ecological treatment module is arranged outside the oil-water separation device, the anaerobic treatment device and the aeration oxidation device in a surrounding mode, so that the ecological treatment module is favorably fused with the surrounding landscape environment, can be shielded by planting plants with a certain height, and has good environmental compatibility.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view showing the overall structure of an ecological kitchen waste treatment system according to the present invention (arrows indicate the flow direction of waste water).
Fig. 2 is a schematic view of the oil-water separation device of fig. 1 (arrows indicate the sewage flow direction).
Fig. 3 is the power drive mechanism and the first aeration assembly of fig. 1 and 2.
Fig. 4 is an enlarged view of a in fig. 3.
FIG. 5 is a schematic top view of the separation tank, the anaerobic treatment apparatus, the aeration oxidation apparatus and the ecological treatment module (arrows in the figure indicate the flow direction of wastewater).
Fig. 6 is a cross-sectional view of B-B in fig. 5.
Fig. 7 is a cross-sectional view of C-C in fig. 5.
FIG. 8 is a schematic view of a baffle.
FIG. 9 is a schematic diagram of an ecological processing module.
Wherein:
1-oil-water separation device, 2-anaerobic treatment device, 3-aeration oxidation device, 4-ecological treatment module, 5-separation tank, 6-filter basket, 7-flow guide partition plate, 8-liquid passing hole, 9-oil outlet, 10-outer baffle, 11-oil guide plate, 12-blade, 13-oil storage piece, 14-bottom plate, 15-hook piece, 16-power rod, 17-water outlet pipe, 18-second water discharge valve, 19-oil collection tank, 20-transition tank, 21-storage tank, 22-water discharge pipe, 23-first water discharge valve, 24-water discharge port, 25-third water discharge valve, 26-water baffle, 27-water passing tank, 28-heating element, 29-temperature measurement element, 30-first aeration component, 31-power oil displacement mechanism, 32-first connection rod, 33-second connection rod, 34-driven gear, 35-first aeration pipe, 36-first aeration head, 37-water distribution tank, 38-water distribution pipe, 39-water outlet hole, 40-oxidation tank, 41-second connection rod, 33-aeration tank, 42-second connection rod, 34-driven gear, 35-first aeration pipe, 36-first aeration head, 37-water distribution tank, 38-water distribution pipe, 40-aeration tank, 43-aeration tank, water inlet of water inlet, 43-aeration tank, 44-water-aeration tank, water-anaerobic treatment chamber, 48-water inlet of water inlet, 48-aeration chamber, 48-aeration tank, water outlet, water inlet of plant anaerobic treatment device, and water outlet, 48-aeration chamber, and water outlet structure.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
Referring to fig. 1 to 9, the embodiment discloses an ecological treatment system for kitchen waste sewage, which comprises an oil-water separation device 1, an anaerobic treatment device 2, an aeration oxidation device 3 and an ecological treatment module 4; the anaerobic treatment device 2 and the aeration oxidation device 3 are arranged outside the oil-water separation device 1 and surround the oil-water separation device 1; the ecological treatment module 4 is arranged outside the anaerobic treatment device 2 and the aeration oxidation device 3 and surrounds the anaerobic treatment device 2 and the aeration oxidation device 3; wherein the content of the first and second substances,
the oil-water separation device 1 comprises a separation tank 5, a power oil displacement mechanism 31 and an aeration oil displacement mechanism; the power oil displacement mechanism 31 comprises a power rod 16, a plurality of blades 12 arranged on the power rod 16 and an oil stirring driving mechanism for driving the power rod 16 to rotate, wherein the plurality of blades 12 are connected to the power rod 16 in an arrayed manner along the circumferential direction of the power rod 16 and extend outwards in the radial direction, the power rod 16 and the plurality of blades 12 are both arranged in the separation tank 5, and the power rod 16 extends vertically; the aeration oil displacement mechanism comprises a first aeration component 30, the first aeration component 30 is connected with the aeration system 52, and the first aeration component 30 is arranged at the bottom of the inner cavity of the separation tank 5; an oil outlet 9 is arranged at a designated height of the separation tank 5, the oil outlet 9 is communicated with an inner cavity of the separation tank 5, the height of the blades 12 on the power rod 16 is corresponding to the oil outlet 9, an oil collecting and draining assembly is arranged at the oil outlet 9, the oil collecting and draining assembly comprises an oil collecting box and a draining pipe 22, the oil collecting box is connected to the outer wall of the separation tank 5 and is positioned below the oil outlet 9, one end of the draining pipe 22 is communicated with the bottom of the oil collecting box, the other end of the draining pipe 22 is communicated with a water inlet 43 of the anaerobic treatment device 2, and a first draining valve 23 is arranged on the draining pipe 22;
the aeration oxidation device 3 comprises an aeration oxidation pond 40 and a second aeration component, and the second aeration component is connected with an aeration system 52; the water inlet of the aeration oxidation tank 40 is connected with the water outlet 44 of the anaerobic treatment device 2;
the ecological treatment module 4 comprises a bottom water inlet cavity 48, a filter structure 50 and aquatic plants 51, wherein the bottom water inlet cavity 48 is arranged at the bottom of the filter structure 50, and the aquatic plants 51 are planted in the filter structure 50; the bottom water inlet cavity 48 is communicated with the water outlet of the aeration oxidation pond 40.
Specifically, a plurality of vanes 12 in the present embodiment are located at the lower end of the oil outlet 9; when the liquid level of the sewage in the separation tank 5 is close to the oil outlet 9, the power oil displacement mechanism 31 and the aeration oil displacement mechanism can be started. Of course, the height position of the blade 12 can be flexibly set, and can be set below the oil outlet 9 (close to the oil outlet 9), and the height of the blade 12 can also be set to be flush with the oil outlet 9, and the like. In addition, in order to judge whether the sewage liquid level in the separation tank 5 reaches a specified position more accurately, a liquid level sensor can be arranged on the inner wall of the separation tank 5, and the actions of the power oil displacement mechanism 31 and the aeration oil displacement mechanism are controlled by feedback of a control system.
Referring to fig. 1-2, the separation tank 5 is provided with an opening at the top, and a filter basket 6 for filtering solid impurities in kitchen waste water is arranged at the top of the inner cavity of the separation tank 5. Through the setting of filtering basket 6, can carry out solid-liquid separation before carrying out oil-water separation, separate out the solid residue that remains in the kitchen waste water, be favorable to improving subsequent oil-water separation. When the treatment system of the embodiment operates, kitchen waste sewage can be discharged to the top of the separation tank 5 through the sewage pump, the sewage pipe and the like, kitchen waste sewage to be treated enters from the opening at the top of the separation tank 5, and after solid-liquid separation of the filter basket 6, sewage with grease enters the inner cavity of the separation tank 5 so as to be treated next. Specifically, the filtration basket 6 can be hung at the top port of the separation tank 5 by a hanging manner, and of course, other detachable connection manners can also be adopted; when the solid residue garbage in the filtering basket 6 is fully piled, the filtering basket 6 can be detached, and the solid residue garbage is poured out and then is put back for use.
Referring to fig. 1-2, a flow guide assembly is arranged in the separation tank 5, the flow guide assembly includes a plurality of flow guide partition plates 7, the flow guide partition plates 7 are all arranged in an inclined manner, the lower end of the previous flow guide partition plate 7 corresponds to the upper end of the next flow guide partition plate 7 along the direction from top to bottom, and the lower end of each flow guide partition plate 7 is provided with a liquid passing hole 8. Specifically, three flow guide partition plates 7 in the embodiment are arranged in a Z shape; wherein, the upstream surface of the baffle plate 7 positioned at the top is smoothly arranged, the upstream surfaces of the two baffle plates 7 positioned at the lower part are arranged in a wave shape, the inclination angles of the three baffle plates 7 can be set to 10-20 degrees, and the embodiment is specifically set to 15 degrees. Therefore, after the kitchen waste sewage enters the separation tank 5, the kitchen waste sewage flows down rapidly under the smooth water-facing surface of the uppermost diversion partition plate 7, so that the excessive high sewage level caused by accumulation is avoided; subsequently, when kitchen waste sewage passes through the diversion baffle 7 of the second layer and the third layer in sequence, the water-facing surface of the kitchen waste sewage is in a wave-shaped arrangement, so that the sewage is in wave motion on the diversion baffle 7, the turbulence is large and the collision is constant, and fine oil drops are condensed into large oil drops to enter the inner cavity of the separation tank 5, thereby being beneficial to subsequent oil-water separation treatment. In addition, the baffle plates 7 in the present embodiment may be provided in other numbers and other arrangements, for example, the number of baffle plates 7 may be increased to improve the turbulence of the sewage flowing.
Referring to fig. 1-4, the first aeration assembly 30 is disposed on the power rod 16; the first aeration assembly 30 includes a plurality of first aeration pipes 35, a plurality of first aeration heads 36 are disposed on the first aeration pipes 35, one end of each first aeration pipe 35 is connected to the power rod 16, the other end of each first aeration pipe 35 extends radially outward, and the plurality of first aeration pipes 35 are connected to the power rod 16 in a circumferential direction. Connect first aeration subassembly 30 and set up on the power pole 16 for first aeration subassembly 30 and blade 12 rotate along with power pole 16 simultaneously, and when blade 12 outwards pulled out the sewage that the upper strata has more grease, the bubble that emerges in follow first aeration subassembly 30 can evenly distributed in sewage, and constantly upwards float, are favorable to further accelerating the oil droplet come-up, improve water oil separating efficiency.
In this embodiment, four blades 12 are provided and are all connected to the upper end of the power rod 16, and the four blades 12 are arranged at equal angles. The first aeration pipes 35 of the first aeration assembly 30 of the embodiment are also provided with four, and the four first aeration pipes 35 are arranged and distributed at equal angles at the lower part of the power rod 16 and are close to the bottom of the separation tank 5; in addition, the four first aeration pipes 35 and the four blades 12 are arranged to be offset from each other. The connection between the blades 12 and the first aeration pipe 35 and the power rod 16 can be achieved by welding, bolts, or fasteners.
Referring to fig. 1-2, further, the separation tank 5 of the present embodiment is further provided with a temperature measuring element 29 and a heating element 28, the temperature measuring element 29 is used for detecting the temperature of the kitchen waste water in the separation tank 5 and feeding the temperature back to the control system, when the control system determines that the temperature of the kitchen waste water in the separation tank 5 is lower than the preset temperature, the control system sends a heating signal to heat the heating element 28 by the heating module, so as to heat the kitchen waste water in the separation tank 5, thereby avoiding grease solidification caused by too low temperature of the kitchen waste water, and being beneficial to ensuring smooth oil-water separation.
Referring to fig. 1 to 4, further, the oil-stirring driving mechanism of the present embodiment may be a motor, the lower end of the power rod 16 passes through the bottom of the separation tank 5 and extends downward, the motor is connected with the lower end of the power rod 16 through a gear transmission mechanism in a matching manner, and the power rod 16 is driven to rotate through the motor and the gear transmission mechanism; the driven gear 34 of the gear transmission mechanism in this embodiment is provided at the lower end of the power rod 16, and the driving gear is connected to the motor spindle. Since the power rod 16 passes through the bottom of the separation tank 5, a sealing element can be arranged at the bottom of the separation tank 5 to prevent kitchen waste water from leaking out. In addition, the motor of the present embodiment may also be matched with other power transmission mechanisms such as a belt transmission mechanism, etc., to drive the power rod 16.
Referring to fig. 3-4, further, the power rod 16 of the present embodiment includes a first connecting rod 32 and a second connecting rod 33, and the first connecting rod 32 is connected to the second connecting rod 33; the blades 12 are connected to the upper ends of the first connection rods 32, and the first aeration assembly 30 is connected to the second connection rods 33. Specifically, the second connecting rod 33 is hollow, and a connecting port is arranged at the lower end of the second connecting rod 33; the plurality of first aeration pipes 35 are communicated with the hollow channel of the second connecting rod 33, and a connecting port at the lower end of the second connecting rod 33 is connected with an aeration system 52. In this way, the second connecting rod 33 of the power rod 16 is utilized to connect the aeration system 52 with the plurality of first aeration pipes 35, the structure is simple, the design is ingenious, the plurality of first aeration pipes 35 can rotate together with the power rod 16, and the number of connecting parts between the aeration system 52 and the first aeration pipes 35 can be reduced.
As another embodiment, a partition plate can be arranged in the inner cavity of the separation tank 5 at a position close to the bottom, the oil stirring driving mechanism is arranged below the partition plate, and the lower end of the power rod 16 penetrates through the partition plate to extend to the position below the partition plate and is connected with the oil stirring driving mechanism. This is advantageous in that the integrity of the entire oil-water separator 1 is improved, and components such as the oil drive mechanism can be disposed in the space below the partition in the separation tank 5.
Referring to fig. 1-2, the oil collection box includes an outer baffle 10 and a bottom plate 14; the bottom plate 14 is arranged in an annular shape, the inner edge of the bottom plate 14 is connected with the outer wall of the separation tank 5, and the bottom plate 14 is positioned below the oil outlet 9; the outer baffle 10 is annularly arranged, the bottom of the outer baffle 10 is connected with the bottom plate 14, the upper end of the outer baffle 10 extends upwards, and the outer baffle 10 is slightly higher than the oil outlet 9; the outer baffle 10, the bottom plate 14 and the outer wall of the separation tank 5 form an oil sump 19 for temporarily storing the drawn-out sewage. The inner side of the outer baffle 10 is provided with an oil storage part 13, and the oil storage part 13 is arranged in an arc shape. Specifically, the oil storage member 13 may be disposed along a circumferential direction of an inner wall of the outer baffle 10 to form an annular oil storage groove 21, the oil storage groove 21 is lower than the oil outlet 9, and the oil storage groove 21 is at a certain height from the bottom plate 14.
Therefore, after sewage with high grease content which is extracted from the separation tank 5 flows into the oil collecting tank 19, the sewage is cached for a period of time, and after the sewage in the oil collecting tank 19 reaches a certain liquid level, the first drain valve 23 is opened; in the process of caching, grease of the sewage in the oil collecting tank 19 gradually floats upwards and is temporarily stored in the oil storage tank 21, and the water inlet of the drain pipe 22 is connected with the bottom of the oil collecting tank 19, so that the sewage (low in grease content) below after oil-water separation is facilitated to be discharged, and the sewage with high grease content is temporarily stored in the oil storage tank 21, so that secondary oil-water separation of the kitchen waste sewage is realized. Of course, if the rotation of the blade 12 continuously pulls out the sewage during the continuous operation, the water discharge amount can be controlled by adjusting the opening of the first water discharge valve 23, so that the kitchen waste water level in the oil collecting tank 19 is balanced. The sewage remaining in the oil collecting tank 19 after the temporary storage in the oil storage tank 21 or the closing of the first drain valve 23 is discharged for the next separation and treatment by being connected with the outer pipe, which can be provided with a control valve, because of the large amount of grease.
Referring to fig. 1-2, further, the outer edge of the bottom plate 14 extends outward beyond the outer baffle 10, a through hole for discharging sewage is formed in the outer baffle 10, the through hole is connected to a water outlet pipe 17, and a second drain valve 18 is arranged on the water outlet pipe 17; a hook-shaped piece 15 is arranged at the outer edge of the bottom plate 14, a hook groove of the hook-shaped piece 15 is connected with the drain pipe 22, the side wall of the hook-shaped piece 15 is connected with the outer edge of the bottom plate 14, and the upper end of the hook-shaped piece 15 is higher than the bottom plate 14 and lower than the oil storage piece 13; in addition, in order to adapt to the outer wall of the cylindrical separating tank 5 in the embodiment, the hook-shaped piece 15 is also arranged in a circular ring shape and is connected with the edge of the bottom plate 14 in a matching way; a transition groove 20 is formed between the outer side surface of the hook piece 15 and the outer baffle 10. When the liquid level of the sewage in the oil collecting tank 19 reaches the height of the oil storage tank 21, the second drain valve 18 and the first drain valve 23 can be opened, the sewage with lower grease content in the lower layer in the oil collecting tank 19 can be gradually drained into the transition tank 20 through the through hole and the water outlet pipe 17, and the sewage in the transition tank 20 flows into the hook groove of the hook element 15 after overflowing the side wall of the hook element 15 and flows to the anaerobic treatment device 2 through the water outlet pipe 22. Thus, the oil collecting and water discharging assembly of the embodiment realizes the secondary separation of kitchen waste and sewage; specifically, the method comprises the following steps: the kitchen waste water in the separation tank 5 is subjected to standing oil drop floating, aeration oil floating acceleration and the action of the power oil displacement mechanism 31 to complete the first-stage oil-water separation of the kitchen waste water; in the oil collecting tank 19, the secondary oil-water separation of the kitchen waste sewage is realized by temporarily storing the sewage with high grease content at the upper layer in the oil storage tank 21 and arranging the through hole at the bottom of the outer baffle 10 and discharging the sewage with low grease content at the lower layer by the water outlet pipe 17. The kitchen waste water after the second-stage separation has low oil content and is discharged into the anaerobic treatment device 2 and the aeration oxidation treatment device for treatment, thereby being beneficial to improving the sewage treatment effect.
Referring to fig. 1-2, further, the separation tank 5 in this embodiment is provided with a water outlet 24 for discharging the sewage in the lower layer, the water outlet 24 is communicated with the inner cavity of the separation tank 5, and the water outlet 24 is higher than the water inlet 43 of the anaerobic treatment device 2; in addition, a water blocking member 26 is arranged in the inner cavity of the separation tank 5, the water blocking member 26 blocks the water outlet 24, a certain gap is reserved between the water blocking member 26 and the inner wall of the separation tank 5, a water passing groove 27 is arranged at the bottom of the water blocking member 26, and the water passing groove 27 is lower than the first aeration assembly 30. In order to facilitate the controlled discharge of the lower layer of sewage in the separation tank 5, a water pipe is connected to the water discharge port 24, a third water discharge valve 25 is provided on the water pipe, and the water pipe is connected to the water discharge pipe 22. When the blades 12 rotate to pull out the upper layer sewage in the separation tank 5, or the sewage level in the separation tank 5 does not reach a specified height (the specified height is a certain distance away from the oil outlet 9), or in other cases, the third drain valve 25 is opened, the opening degree of the drain port 24 is controlled to control the drainage flow, and the lower layer sewage in the separation tank 5 is drained into the drain pipe 22 and is drained to the anaerobic treatment device 2 through the drain pipe 22. Thus, under the action of the power drive mechanism 31, the upper-layer sewage containing a large amount of grease in the separation tank 5 is pulled out, and meanwhile, the lower-layer sewage containing a small amount of grease in the separation tank 5 can be discharged through the water outlet 24, so that double treatment of oil-water separation of kitchen waste sewage is realized, and the oil-water separation efficiency and quality are accelerated. In addition, to the clearance discharge characteristics of rural domestic kitchen sewage, if the kitchen sewage residual time in knockout drum 5 is overlength, and the liquid level does not reach appointed height all the time, can discharge the sewage of lower floor through outlet 24 this moment, avoid sewage to stay for a long time in knockout drum 5.
Referring to fig. 1-2, the oil collecting and draining assembly further includes an oil guide plate 11, the oil guide plate 11 is arranged in a circular arc shape, and the oil guide plate 11 is connected to the outer wall of the separation tank 5 and located at a position corresponding to the oil outlet 9. Through the setting of leading oiled plate 11, the sewage (grease content high) that is dialled out can be along leading oiled plate 11 outwards and downward flow, lets the outflow of sewage more smooth, is favorable to the higher sewage of grease content to discharge smoothly.
In this embodiment, a plurality of oil outlets 9 may be disposed on an outer wall of the separation tank 5, and an oil guide plate 11 is disposed at a corresponding position of each oil outlet 9; one end of the oil guide plate 11 corresponds to the lower end of the oil outlet 9, and the other end extends outwards in an arc shape.
Referring to fig. 1-2 and 5, the separation tank 5 is arranged in a cylindrical shape; the anaerobic treatment device 2 and the aeration oxidation tank 40 are both in a semicircular shape, and the anaerobic treatment device 2 and the aeration oxidation tank 40 are spliced into a circular shape and are arranged outside the separation tank 5 in a surrounding manner; the ecological treatment module 4 is in a ring shape and is arranged outside the anaerobic treatment device 2 and the aeration oxidation tank 40 in a surrounding manner.
Referring to fig. 1, fig. 2, fig. 5, fig. 6 and fig. 9, a water distribution tank 37 is arranged inside a bottom water inlet cavity 48 of the ecological treatment module 4, the water distribution tank 37 is arranged in a circular shape, and the water distribution tank 37 is communicated with a water outlet (not shown) of the aeration oxidation tank 40; a plurality of water distribution pipes 38 are arranged in the bottom water inlet cavity 48, and the water distribution pipes 38 are arranged at equal angles along the circumferential direction; one end of each water distribution pipe 38 is communicated with the water distribution tank 37, and the other end of each water distribution pipe extends radially outwards, and each water distribution pipe 38 is provided with a plurality of water outlet holes 39. Through the setting of water distribution tank 37, be favorable to the sewage evenly distributed who will follow the delivery port outflow of aeration oxidation pond 40, and combine a plurality of water-distribution pipes 38, be favorable to evenly discharging the water after oil water separating, anaerobic treatment and aeration oxidation treatment to ecological treatment module 4's bottom intake antrum 48, thereby be favorable to upwards overflowing the in-process of sewage fully by ecological treatment module 4's filtration 50 and aquatic plant 51 filter and the plant purification, and then be favorable to improving the treatment effect of surplus sewage in kitchen.
Referring to fig. 5-6, preferably, the second aeration assembly comprises a second aeration pipe 41 and a plurality of second aeration heads 42 arranged on the second aeration pipe 41, wherein the second aeration pipe 41 is arranged in an arc shape, is matched with the aeration oxidation tank 40 and is arranged in the middle of the bottom of the aeration oxidation tank 40. Thus, the floating uniformity of the gas in the aeration oxidation tank 40 is improved. Further, the water outlet 44 of the anaerobic treatment device 2 in the embodiment is positioned at the top of the aeration oxidation tank 40; a water stop plate 47 is arranged in the aeration oxidation pond 40, the height of the water stop plate 47 is lower than that of the aeration oxidation pond 40, and the water stop plate 47 can be set to be 100mm lower than that of the aeration oxidation pond 40; the water-stop plate 47 divides the aeration oxidation tank 40 into a first cavity 45 and a second cavity 46, the first cavity 45 is positioned at the inner side, the second cavity 46 is positioned at the outer side, the water outlet 44 of the anaerobic treatment device 2 and the second aeration assembly are both arranged in the first cavity 45, and the water outlet of the aeration oxidation tank 40 is communicated with the second cavity 46 and is positioned at the bottom of the side surface of the second cavity 46. In this way, the sewage after the anaerobic treatment is aerated again, and after the sewage overflows from the first chamber 45 and crosses the water-stop plate 47, the sewage is further aerated into the second chamber 46 by means of water dropping, and finally flows into the water distribution tank 37 and the bottom water inlet chamber 48 of the ecological treatment module 4 through the water outlet of the aerated oxidation tank 40.
Referring to fig. 1, 2 and 9, the ecological treatment module 4 of the present embodiment further includes a frame 49, in order to facilitate the placement of the filtering structure 50, a grid plate (not shown in the drawings) may be disposed in the frame 49, the filtering structure 50 is disposed on the grid plate, and a bottom water inlet cavity 48 is formed below the grid plate. The filtering structure 50 is a gravel packed bed, a coarse sand packed bed and a fine sand packed bed with the particle size of 5-10 mm from bottom to top respectively, meanwhile, aquatic plants 51 with developed root systems are planted on the packing, and the aquatic plants 51 can be one or more of reed, calamus, cattail, iris, canna and dracaena. The sewage overflows after being filtered by the ecological treatment module 4 and subjected to plant ecological treatment, and the overflowing water can meet the national standard and can be used for watering plants or draining water to rivers. In order to ensure the smooth overflow discharge of the sewage, the frame 49 of the ecological treatment module 4 in this embodiment is lower than the aeration oxidation tank 40 and the anaerobic treatment device 2, and lower than the water-stop plate 47 in the aeration oxidation tank 40.
Referring to fig. 1 to 9, the ecological kitchen waste water treatment system of the present embodiment has the following working principle:
kitchen waste sewage is discharged to the top of the separation tank 5 through a sewage discharge pump, a sewage pipe and the like, the kitchen waste sewage to be treated enters from the opening at the top of the separation tank 5, and after solid-liquid separation of the filter basket 6, the sewage with grease enters the inner cavity of the separation tank 5.
When the sewage liquid level in the knockout drum 5 is close to oil-out 9, power drive mechanism 31 and aeration drive mechanism operation, motor drive power pole 16 rotates for under the rotation of blade 12, with the sewage rotary motion that contains a large amount of greases in the upper strata in the knockout drum 5, the oil reservoir surface produces and surges, and partial grease spills over from oil-out 9, and on the other hand, the oil reservoir is centrifugal motion, and partial grease sewage centrifugal motion is thrown away and is stirred out, flows out to the oil collecting tank 19 in through oil-out 9. Meanwhile, the aeration oil displacement mechanism runs synchronously, and continuously emits out of a steam pocket and stirs, so that floating of oil drops is accelerated, and the oil-water separation efficiency is improved.
After the sewage in the oil collecting tank 19 is subjected to secondary oil-water separation in the oil storage tank 21, the sewage in the lower layer of the oil collecting tank 19 and having a low oil content is discharged to the anaerobic treatment apparatus 2 through the water discharge pipe 22. In addition, since the separation tank 5 is provided with the drain port 24, the sewage with low oil content in the lower layer in the separation tank 5 can be synchronously drained to the anaerobic treatment device 2 according to whether the drain port 24 is opened or not in actual conditions.
The sewage after the anaerobic treatment of the anaerobic treatment device 2 flows to the aeration oxidation tank 40 of the aeration oxidation device 3; the aeration oxidation device 3 carries out aeration oxidation treatment on the sewage.
The sewage after the aeration oxidation treatment enters the bottom water inlet cavity 48 of the ecological treatment module 4 through the water distribution tank 37 and finally overflows and is discharged through the filtering structure 50 of the ecological treatment module 4 from bottom to top, and the whole kitchen waste sewage ecological treatment is completed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. A kitchen waste sewage ecological treatment system is characterized by comprising an oil-water separation device, an anaerobic treatment device, an aeration oxidation device and an ecological treatment module; the anaerobic treatment device and the aeration oxidation device are arranged outside the oil-water separation device and surround the oil-water separation device; the ecological treatment module is arranged outside the anaerobic treatment device and the aeration oxidation device and surrounds the anaerobic treatment device and the aeration oxidation device; wherein the content of the first and second substances,
the oil-water separation device comprises a separation tank, a power oil displacement mechanism and an aeration oil displacement mechanism; the power oil displacement mechanism comprises a power rod, a plurality of blades arranged on the power rod and an oil stirring driving mechanism for driving the power rod to rotate, the plurality of blades are arranged and connected to the power rod along the circumferential direction of the power rod and extend outwards along the radial direction, the power rod and the plurality of blades are arranged in the separation tank, and the power rod extends vertically; the aeration oil displacement mechanism comprises a first aeration component, the first aeration component is connected with an aeration system, and the first aeration component is arranged at the bottom of the inner cavity of the separation tank; an oil outlet is formed in the designated height of the separation tank, the oil outlet is communicated with the inner cavity of the separation tank, the height of the blades on the power rod is arranged corresponding to that of the oil outlet, and an oil collecting and draining assembly is arranged at the oil outlet; the oil collecting and water draining component comprises an oil collecting box and a water draining pipe, the oil collecting box is connected to the outer wall of the separation tank and is positioned below the oil outlet, one end of the water draining pipe is communicated with the bottom of the oil collecting box, the other end of the water draining pipe is communicated with the water inlet of the anaerobic treatment device, and a first water draining valve is arranged on the water draining pipe;
the aeration oxidation device comprises an aeration oxidation pond and a second aeration component, and the second aeration component is connected with the aeration system; the water inlet of the aeration oxidation tank is connected with the water outlet of the anaerobic treatment device;
the ecological treatment module comprises a bottom water inlet cavity, a filtering structure and aquatic plants, wherein the bottom water inlet cavity is arranged at the bottom of the filtering structure, and the aquatic plants are planted in the filtering structure; the bottom water inlet cavity is communicated with a water outlet of the aeration oxidation pond;
the oil collecting box comprises an outer baffle and a bottom plate; the bottom plate is annularly arranged, the inner edge of the bottom plate is connected with the outer wall of the separation tank, and the bottom plate is positioned below the oil outlet; the outer baffle is annularly arranged, the bottom of the outer baffle is connected with the bottom plate, and the upper end of the outer baffle extends upwards; the outer baffle, the bottom plate and the outer wall of the separation tank form an oil collecting tank for temporarily storing the pulled sewage;
the inner side of the outer baffle is provided with an oil storage piece which is arranged in an arc shape;
the outer edge of the bottom plate extends outwards to the outside of the outer baffle plate, a through hole for sewage to flow out is formed in the outer baffle plate, the through hole is connected with a water outlet pipe, and a second drain valve is arranged on the water outlet pipe; a hook-shaped piece is arranged at the outer edge of the bottom plate, a hook groove of the hook-shaped piece is connected with the drain pipe, the side wall of the hook-shaped piece is connected with the outer edge of the bottom plate, and the upper end of the hook-shaped piece is higher than the bottom plate and lower than the oil storage piece; the hook-shaped piece is in a circular ring shape and is connected with the edge of the bottom plate in a matching way; a transition groove is formed between the outer side surface of the hook-shaped piece and the outer baffle;
the top of the separation tank is provided with an opening, and the top of the inner cavity of the separation tank is provided with a filtering basket for filtering solid impurities in kitchen waste sewage;
a flow guide assembly is arranged in the separation tank, the flow guide assembly comprises a plurality of flow guide partition plates, the flow guide partition plates are obliquely arranged, the lower end of the previous flow guide partition plate corresponds to the upper end of the next flow guide partition plate along the direction from top to bottom, and the lower end of each flow guide partition plate is provided with a liquid passing hole;
the water-facing surface of the diversion baffle plate is arranged in a wave shape.
2. The ecological kitchen waste treatment system according to claim 1, wherein said first aeration assembly is disposed on said power rod; the first aeration assembly comprises a plurality of first aeration pipes, a plurality of first aeration heads are arranged on the first aeration pipes, one ends of the first aeration pipes are connected with the power rod, the other ends of the first aeration pipes extend outwards along the radial direction, and the first aeration pipes are connected to the power rod in a circumferential direction in an arrayed mode.
3. The ecological kitchen waste water treatment system according to claim 1, wherein the oil collecting and draining assembly further comprises an oil guide plate, the oil guide plate is arranged in a circular arc shape, and the oil guide plate is connected to the outer wall of the separation tank and located at a position corresponding to the oil outlet.
4. The ecological kitchen waste water treatment system according to claim 1, wherein said separation tank is arranged in a cylindrical shape; the anaerobic treatment device and the aeration oxidation tank are both in a semicircular shape, and the anaerobic treatment device and the aeration oxidation tank are spliced into a circular shape and are arranged outside the separation tank in a surrounding manner; the ecological treatment module is in a ring shape and is arranged outside the anaerobic treatment device and the aeration oxidation tank in a surrounding mode.
5. The ecological kitchen waste water treatment system according to claim 4, wherein a water distribution tank is arranged inside a bottom water inlet cavity of the ecological treatment module, the water distribution tank is arranged in a circular shape, and the water distribution tank is communicated with a water outlet of the aeration oxidation tank; a plurality of water distribution pipes are arranged in the bottom water inlet cavity and are arranged at equal angles along the circumferential direction; one end of each water distribution pipe is communicated with the water distribution groove, the other end of each water distribution pipe extends outwards along the radial direction, and a plurality of water outlet holes are formed in each water distribution pipe.
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| CN105217889A (en) * | 2015-10-20 | 2016-01-06 | 广东金石基生物环保科技有限公司 | A kind of grease impurity and sewerage integrated purification system |
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| TWM254472U (en) * | 2004-03-02 | 2005-01-01 | Che Lee Entpr Co Ltd | Vertical oil water separation oil trapping device |
| US7674378B2 (en) * | 2006-12-19 | 2010-03-09 | Modular Wetland Systems, Inc. | Wetland water treatment system |
| CN201061731Y (en) * | 2007-06-25 | 2008-05-21 | 王重强 | Oil-water separator |
| CN107200443A (en) * | 2017-07-13 | 2017-09-26 | 河海大学 | One kind is applied to highlands distributed sewage treatment system for rural life |
| CN214654274U (en) * | 2020-10-20 | 2021-11-09 | 广西博世科环保科技股份有限公司 | Full-pneumatic small-scale rural sewage treatment equipment |
| CN215626932U (en) * | 2021-08-22 | 2022-01-25 | 宁波芳远环保设备有限公司 | Oil-water separating device for kitchen garbage |
| CN216584660U (en) * | 2021-09-06 | 2022-05-24 | 北京伟创力科技股份有限公司 | Oily sludge aeration deoiling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105217889A (en) * | 2015-10-20 | 2016-01-06 | 广东金石基生物环保科技有限公司 | A kind of grease impurity and sewerage integrated purification system |
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