CN217709016U - Kitchen garbage waste water's deoiling anaerobic treatment device - Google Patents

Abstract

The utility model relates to an oil-removing anaerobic treatment device for kitchen waste and wastewater, which comprises a fermentation mechanism and a reaction mechanism; the reaction mechanism comprises a reaction tank, a plurality of packing areas are arranged in the reaction tank, the packing areas are communicated with the fermentation mechanism through pipelines, adjacent packing areas are communicated with one another, packing materials used for reacting with the oily wastewater are filled in the packing areas, liquid in the fermentation mechanism can flow into the reaction tank, and the liquid in the reaction tank can flow through the plurality of packing areas and then flow back to the fermentation mechanism. This deoiling anaerobic treatment device has prolonged waste water in reaction mechanism's time effectively through the setting of a plurality of filler districts in the reaction mechanism for there is sufficient contact time in the grease in the waste water and the filler in the reaction mechanism, has improved the efficiency that the grease reaction in the waste water is hydrolysised. And the fermentation mechanism and the reaction mechanism are communicated with each other to form an internal circulation system, so that the grease can be further recycled after hydrolysis reaction, and the environmental protection performance of the device is further improved.

Description

Kitchen garbage waste water's deoiling anaerobic treatment device

Technical Field

The utility model relates to a kitchen waste water treatment technical field especially relates to a kitchen garbage waste water's deoiling anaerobic treatment device.

Background

With the development of the catering industry and the improvement of the living standard, the kitchen waste in China shows a rapid growth trend. The waste water discharged by the kitchen contains a large amount of grease of animals and plants, and the grease must be treated, so that the grease-containing waste water is prevented from flowing into a sewer and the like to cause blockage.

In current technique, collect discarded grease alone usually, perhaps set up oil-water separator at kitchen garbage anaerobic digestion technology front end, isolate discarded grease and come out the processing, this often needs to spend a large amount of manpower and materials to carry out the independent collection of grease, follow-up grease to collecting is handled again, this very big influence grease anaerobic digestion's efficiency and quality. And, prior art can't fully separate out the grease, leads to the kitchen garbage waste water that contains the grease to be used for anaerobic fermentation directly, and grease can lead to mud come-up in anaerobic system accumulation gradually to form foam scum layer, influence anaerobic reactor's normal operating.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the above-mentioned shortcoming and the not enough of prior art, the utility model provides a deoiling anaerobic treatment device of kitchen garbage waste water, it has solved in anaerobic system in the anaerobic digestion process grease can't fully hydrolyze and float in the waste water upper strata and produce the technical problem who restraines to anaerobic digestion.

(II) technical scheme

In order to achieve the above object, the utility model discloses a deoiling anaerobic treatment device of kitchen garbage waste water includes: a fermentation mechanism and a reaction mechanism;

the reaction mechanism comprises a reaction tank, a plurality of filler areas are arranged in the reaction tank, the filler areas are communicated with the fermentation mechanism through pipelines, the adjacent filler areas are communicated with each other, fillers for reacting with oily wastewater are filled in the filler areas, liquid in the fermentation mechanism can flow into the reaction tank, and the liquid in the reaction tank can flow through the filler areas and then flow back to the fermentation mechanism.

Optionally, the filler district is annular and a plurality of the filler district overlaps in proper order and sets up, the opening has all been seted up in the filler district, the most inboard the filler district the opening with the pipeline communicates with each other and is close to the bottom of retort, and is adjacent the opening sets up relatively from top to bottom, opening department all is provided with the aperture and is less than the filter screen of filler diameter.

Optionally, a water outlet communicated with the fermentation mechanism is formed in the filling area on the outermost side, a filter screen is arranged at the water outlet, and liquid in the filling area can flow back to the fermentation mechanism through the water outlet.

Optionally, a discharge window is arranged at the bottom of the reaction tank, the discharge windows are both communicated with the packing region, and the discharge window is used for taking out the packing in the packing region.

Optionally, the top of the reaction tank is provided with feeding windows, the feeding windows are both communicated with the packing area, and the feeding windows are used for adding the packing to the packing area.

Optionally, the fermentation mechanism comprises a fermentor, a stirrer and a drive motor;

the fermentation tank is communicated with the filling area, the stirrer is perpendicular to the bottom surface of the fermentation tank and arranged in the fermentation tank, the driving motor is arranged outside the fermentation tank, and the driving motor can drive the stirrer to rotate.

Optionally, an overflow port and a return port are arranged on the fermentation tank;

the overflow port is arranged at the oil-water boundary line in the fermentation tank, the return port is arranged at the bottom of the fermentation tank, the overflow port is communicated with the reaction tank, and liquid in the reaction tank can flow back into the fermentation tank through the return port.

Optionally, a shutoff valve and a submersible pump are arranged at the position of the return port, the shutoff valve is close to the fermentation tank, and the submersible pump is close to the reaction tank.

Optionally, the filler in the filler region is immobilized lipase using high oil absorption resin and activated carbon as carriers.

Optionally, a pH meter is further disposed in the fermentation mechanism, and the pH meter is configured to monitor pH changes in the fermentation mechanism.

(III) advantageous effects

The utility model has the advantages that: this deoiling anaerobic treatment device has prolonged waste water in reaction mechanism's time effectively through the setting in a plurality of filler districts among the reaction mechanism for there is sufficient contact time in grease in the waste water and the filler among the reaction mechanism, has improved the efficiency that the grease reaction in the waste water is hydrolysised. And the fermentation mechanism and the reaction mechanism are communicated with each other to form an internal circulation system, so that the grease can be further recycled after hydrolysis reaction, and the environmental protection performance of the device is improved. The fermentation mechanism is arranged, so that the grease floating on the upper layer of the wastewater can be fully mixed with the wastewater, and the grease is prevented from floating on the upper layer of the wastewater and cannot be mixed with the wastewater to enter the reaction mechanism.

Drawings

FIG. 1 is a schematic view of the overall structure of the oil-removing anaerobic treatment device for kitchen waste and wastewater of the present invention;

fig. 2 is the structural schematic diagram of the reaction mechanism of the oil-removing anaerobic treatment device for kitchen waste and wastewater of the utility model.

[ description of reference ]

1: a fermentation mechanism; 11: a fermentation tank; 111: an overflow port; 112: a return port; 1121: closing the valve; 1122: a submersible pump; 12: a stirrer; 13: a drive motor;

2: a reaction mechanism; 21: a reaction tank; 211: a filler zone; 2111: a port; 2112: a water outlet; 212: a feeding window; 213: a discharge window;

3: a pipeline.

Detailed Description

For a better understanding of the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1, the utility model provides an deoiling anaerobic treatment device of kitchen garbage waste water, this deoiling anaerobic treatment device includes: a fermentation mechanism 1 and a reaction mechanism 2; the reaction mechanism 2 comprises a reaction tank 21, a plurality of filler areas 211 are arranged in the reaction tank 21, the filler areas 211 are communicated with the fermentation mechanism 1 through a pipeline 3, the adjacent filler areas 211 are communicated with each other, fillers for reacting with the oily wastewater are filled in the filler areas 211, liquid in the fermentation mechanism 1 can flow into the reaction tank 21, and the liquid in the reaction tank 21 can flow through the filler areas 211 and then flow back to the fermentation mechanism 1.

In this embodiment, the oil-removing anaerobic treatment device makes the oily wastewater pass through the plurality of filler regions 211 in the reaction mechanism 2 and then flow out when passing through the reaction mechanism 2, and the arrangement of the plurality of filler regions 211 further prolongs the time of the wastewater in the reaction mechanism 2, so that the grease in the wastewater has sufficient contact time with the filler in the reaction mechanism 2, and the efficiency of grease reaction hydrolysis in the wastewater is improved. Meanwhile, the fermentation mechanism 1 and the reaction mechanism 2 are communicated with each other to form an internal circulation system, so that the grease can be further recycled after hydrolysis reaction, and the environmental protection performance of the device is improved. The fermentation mechanism 1 is arranged to fully mix the grease floating on the upper layer of the wastewater with the wastewater, so that the grease is prevented from floating on the upper layer of the wastewater and being incapable of mixing with the wastewater to enter the reaction mechanism 2.

Referring to fig. 1 and 2, the packing region 211 is annular, the packing regions 211 are sequentially arranged in a nested manner, the packing regions 211 are provided with through ports 2111, the through port 2111 of the innermost packing region 211 is communicated with the pipeline 3 and is close to the bottom of the reaction tank 21, the adjacent through ports 2111 are arranged up and down oppositely, and the through ports 2111 are provided with filter screens with the aperture smaller than the diameter of the packing.

In this embodiment, the filler region 211 arranged in an annular nesting manner passes through the through ports 2111 arranged oppositely up and down, so that when oily wastewater passes through the filler region 211, water flows through the filler region 211 in an "S" shape by arranging the through ports 2111 at different positions, which effectively prolongs the time period for the oily wastewater to pass through the filler region 211, so that the grease in the wastewater is fully contacted with the filler in the filler region 211 when passing through the filler region 211, effectively improves the reaction efficiency of the reaction mechanism 2, and improves the hydrolysis rate of the filler in the filler region 211 to the grease in the wastewater. And the filter screen with the aperture smaller than the diameter of the filler is arranged at the port 2111 in the filler area 211, so that the reaction mechanism 2 can avoid the occurrence of insufficient reaction between the grease in the filler area 211 and the filler caused by the loss of the filler when the oily wastewater passes through the filler area 211. Meanwhile, the aperture of the filter screen needs to be larger than that of solid impurities carried in the wastewater, and the problem that the solid impurities in the wastewater block the filter screen at the port 2111 to cause the reduction of hydrolysis reaction efficiency is avoided.

As shown in fig. 2, a water outlet 2112 communicated with the fermentation mechanism 1 is formed in the outermost filler region 211, a filter screen is arranged at the water outlet 2112, and liquid in the filler region 211 can flow back to the fermentation mechanism 1 through the water outlet 2112.

In this embodiment, the reaction mechanism 2 is communicated with the fermentation mechanism 1 through a water outlet 2112 arranged in the reaction tank 21, the wastewater after primary hydrolysis in the reaction tank 21 is continuously discharged into the fermentation mechanism 1, the wastewater in the fermentation mechanism 1 is mixed with the wastewater in the fermentation mechanism 1, and the grease which is not completely hydrolyzed continuously floats upwards in the fermentation mechanism 1 and enters the reaction tank 21 again through a pipeline 3 communicated with the reaction mechanism 2 for hydrolysis reaction, so that a recyclable oil-removing hydrolysis reaction process is formed. The arrangement of the filter screen at the water outlet 2112 enables the liquid of the reaction tank 21 after hydrolysis reaction to flow back to the fermentation mechanism 1 through the water outlet 2112, and the filler in the filler zone 211 at the outermost side is blocked by the filter screen, so that the filler loss is prevented, and the occurrence of the condition that the grease and the filler in the filler zone 211 are not reacted sufficiently due to the filler loss is avoided. In addition, the device integrates oil-water separation and grease reaction through the arrangement of the water outlet 2112, thereby greatly simplifying the operation process and improving the treatment efficiency of the oily wastewater.

Referring to fig. 2, the bottom of the reaction tank 21 is provided with discharge windows 213, the discharge windows 213 are both communicated with the packing region 211, and the discharge windows 213 are used for taking out the packing in the packing region 211. The top of the reaction tank 21 is provided with a feeding window 212, the feeding windows 212 are communicated with the packing area 211, and the feeding window 212 is used for adding packing to the packing area 211

In this embodiment, the grease and the filler to be replaced after the hydrolysis reaction in the apparatus are taken out of the discharge window 213 through the discharge window 213 provided in the bottom of the reaction tank 21. In addition, when the reaction tank 21 needs to be washed, the opened discharge window 213 can also be used as an outlet for cleaning water flow, so that the cleaning process of workers is simplified, and the working efficiency of the workers is improved. And the feeding window 212 on the top of the reaction tank 21 is arranged, so that workers can conveniently add fillers into the filler area 211, add and supplement the fillers in time, and the feeding window can be used as a washing water inlet of the reaction tank 21 when the reaction tank 21 needs to be washed.

As shown in fig. 1, the fermentation mechanism 1 includes a fermentation tank 11, a stirrer 12, and a driving motor 13; the fermentation tank 11 is communicated with the filling area 211, the stirrer 12 is arranged in the fermentation tank 11 perpendicular to the bottom surface of the fermentation tank 11, the driving motor 13 is arranged outside the fermentation tank 11, and the driving motor 13 can drive the stirrer 12 to rotate.

In this embodiment, the wastewater after the primary hydrolysis in the reaction tank 21 flows into the fermentation tank 11, the wastewater flowing in is mixed with the wastewater in the fermentation tank 11 by the stirrer 12 perpendicular to the bottom surface of the fermentation tank 11, and the oil that is not completely hydrolyzed continuously floats up through the pipeline 3 communicating with the reaction tank 21 and enters the reaction tank 21 again for the hydrolysis reaction.

In one embodiment, the fermentation tank 11 is provided with an overflow port 111 and a return port 112; the overflow port 111 is arranged at the oil-water boundary line of the fermentation tank 11, the return port 112 is arranged at the bottom of the fermentation tank 11, the overflow port 111 is communicated with the reaction tank 21, and the liquid in the reaction tank 21 can flow back to the fermentation tank 11 through the return port 112; a shut-off valve 1121 and a submersible pump 1122 are arranged at the position of the return opening 112, the shut-off valve 1121 is arranged close to the fermentation tank 11, and the submersible pump 1122 is arranged close to the reaction tank 21. The fermentation mechanism 1 is also provided with a pH tester which is used for monitoring the pH change in the fermentation mechanism 1.

In this embodiment, a shut-off valve 1121 and a submersible pump 1122 are disposed at the reflux port 112, the shut-off valve 1121 and the submersible pump 1122 are disposed to control the flow rate of the liquid in the reaction tank 21 flowing back to the fermentation tank 11, the collapse of the anaerobic system caused by excessive wastewater in the fermentation tank 11 is avoided by controlling the shut-off valve 1121 and the submersible pump 1122, and the sufficient reaction time of hydrolysis in the reaction tank 21 is ensured and the stable operation of the anaerobic system can be maintained by controlling the adjustment of the reflux flow rate. The overflow port 111 is provided at the oil-water boundary, so that the density of oil and water is effectively utilized, and the oily wastewater floating on the upper layer is guided into the reaction tank 21 through the overflow port 111 by utilizing the water head difference. And the arrangement of the return opening 112 enables the reaction tank 21 and the fermentation tank 11 to be communicated to form an integrated circulation system, so that the decomposition efficiency of the oily wastewater is further improved. The pH meter arranged in the fermentation tank 11 is used for monitoring pH change in the fermentation mechanism 1, and according to the change of pH, the reflux flow of the reaction tank 21 is controlled by controlling the shutoff valve 1121 and the submersible pump 1122, so that the anaerobic fermentation system is prevented from being crashed due to acidification of the fermentation tank 11.

In a preferred embodiment, the filler in the filler region 211 is immobilized lipase using high oil absorption resin and activated carbon as carriers. The preparation method and the preparation material of the high oil absorption resin in the filler refer to CN107141417A. In this embodiment, the filler uses immobilized lipase to improve the catalytic performance and recycling efficiency of lipase, improve the reaction efficiency of oil-containing wastewater, and reduce the cost of the enzyme catalysis process, while the use of free lipase has the problems of high consumption, high cost and short activity time. In the above embodiment, the fermentation tank 11, the stirrer 12, the driving motor 13, the overflow port 111, the reaction tank 21, the filling region 211, the submersible pump 1122, and the shut-off valve 1121 are all made of stainless steel, and the stainless steel is used, so that the service life of the device can be greatly prolonged due to the corrosion resistance and the characteristic of being not easily damaged, and the maintenance and replacement costs can be reduced.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a kitchen garbage waste water's deoiling anaerobic treatment device which characterized in that, deoiling anaerobic treatment device includes: a fermentation mechanism and a reaction mechanism;

the reaction mechanism comprises a reaction tank, a plurality of filler areas are arranged in the reaction tank, the filler areas are communicated with the fermentation mechanism through pipelines, the adjacent filler areas are communicated with each other, fillers for reacting with oily wastewater are filled in the filler areas, liquid in the fermentation mechanism can flow into the reaction tank, and the liquid in the reaction tank can flow through the filler areas and then flow back to the fermentation mechanism.

2. The anaerobic treatment device for oil removal of kitchen waste wastewater according to claim 1, characterized in that said filler region is ring-shaped and a plurality of said filler regions are sequentially nested, said filler regions are provided with openings, said opening of said filler region at the innermost side is communicated with said pipeline and is close to the bottom of said reaction tank, said openings are arranged oppositely from top to bottom, and said openings are provided with filter screens with a diameter smaller than the diameter of said filler.

3. The oil-removing anaerobic treatment device for kitchen waste and wastewater according to claim 2, characterized in that the outermost filler region is provided with a water outlet communicated with the fermentation mechanism, a filter screen is arranged at the water outlet, and liquid in the filler region can flow back to the fermentation mechanism through the water outlet.

4. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to any one of claims 1 to 3, wherein a discharge window is arranged at the bottom of the reaction tank, the discharge windows are communicated with the filler area, and the discharge window is used for taking out the filler in the filler area.

5. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to any one of claims 1 to 3, characterized in that the top of the reaction tank is provided with feeding windows, the feeding windows are communicated with the packing area, and the feeding windows are used for adding the packing to the packing area.

6. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to any of claims 1-3, characterized in that said fermentation mechanism comprises a fermentation tank, a stirrer and a driving motor;

the fermentation tank is communicated with the filling area, the stirrer is perpendicular to the bottom surface of the fermentation tank and arranged in the fermentation tank, the driving motor is arranged outside the fermentation tank, and the driving motor can drive the stirrer to rotate.

7. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to claim 6, characterized in that an overflow port and a return port are provided on said fermentation tank;

the overflow port is arranged at the oil-water boundary line of the fermentation tank, the return port is arranged at the bottom of the fermentation tank, the overflow port is communicated with the reaction tank, and liquid in the reaction tank can flow back to the fermentation tank through the return port.

8. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to claim 7, characterized in that a shut-off valve and a submersible pump are arranged at the return port, the shut-off valve is arranged near the fermentation tank, and the submersible pump is arranged near the reaction tank.

9. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to any of claims 1-3, characterized in that the filler in the filler area is immobilized lipase using high oil absorption resin and active carbon as carriers.

10. The anaerobic treatment device for oil removal of kitchen waste and wastewater according to any of claims 1-3, characterized in that a pH meter is further arranged in the fermentation mechanism, and the pH meter is used for monitoring pH change in the fermentation mechanism.

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