Domestic waste treatment device for field construction

Abstract

The utility model relates to the technical field of domestic waste treatment, and discloses a domestic waste treatment device for field construction, which comprises a base capable of being movably transported, and the base is provided with a control room, a solid waste treatment furnace for incinerating solid waste and a sewage treatment tank for purifying sewage. The solid garbage treatment furnace and the sewage treatment tank are both in signal connection with a control device in the control room; the control chamber, the fixed garbage treatment furnace and the sewage treatment tank are all packaged in an outer box, and the outer box is connected with the base. The solid waste treatment furnace and the sewage treatment pool can effectively treat domestic waste on site, influence on environmental sanitation of a working site and a living quarter is small, personnel health and smooth construction are guaranteed, environmental pollution to a construction site is avoided, the treatment cost is low, the device can be moved and transported in a hoisting mode and the like, portability is high, and the service life of the device is prolonged. And repeated use can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of domestic waste treatment, and more specifically, to a domestic waste treatment device for field construction. Background Art

[0002] When drilling construction teams work in the field, they will generate a large amount of domestic waste, such as washing wastewater, excrement, and kitchen waste. Assuming a construction team of 50 people and a construction period of 3 months, a single well construction team will generate about 400-500 cubic meters of domestic waste at the well site.

[0003] Most well sites are located in remote areas, and there are usually no corresponding sewage treatment plants and landfills around them. At present, there are two main ways to deal with domestic waste in well sites: external facility treatment and on-site treatment. Among them, external facility treatment is to pack the domestic waste in the well site and transport it to the sewage treatment plant and / or landfill for treatment. Due to the disadvantages of difficult roads, long transportation distance, high risks, few optional receiving units, and high treatment costs, external facility treatment is unlikely to become the main treatment method for well site waste treatment.

[0004] On-site treatment is to collect domestic waste from the well site using sump pits, dry toilets, septic tanks and garbage cans, and then landfill or simply incinerate it, or give it to nearby farmers as livestock feed, or discharge it into the surrounding environment. On-site treatment is not only likely to cause poor sanitation in the on-site working environment and living area, strong odor, mosquito and fly breeding, and other problems that affect the health of personnel, thus affecting the development of the project, but may also cause environmental pollution problems.

[0005] In summary, how to deal with domestic waste generated by field construction is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a domestic waste treatment device for field construction, which can effectively treat domestic waste on site with low treatment cost, avoid the impact on the environmental sanitation of the work site and living area, and is more environmentally friendly.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A domestic waste treatment device for field construction, comprising a movable and transportable base, the base being provided with a control room, a solid waste treatment furnace for incinerating solid waste, and a sewage treatment pool for purifying sewage, the solid waste treatment furnace and the sewage treatment pool being both signal-connected to a control device in the control room;

[0009] The control room, the fixed garbage treatment furnace and the sewage treatment tank are all packaged in an outer box, and the outer box is connected to the base.

[0010] Preferably, the solid waste treatment furnace comprises a combustion chamber for high-temperature oxidation treatment of solid waste, the slag outlet of the combustion chamber is connected to the slag removal chamber, and the gas outlet of the combustion chamber is connected to the gas outlet pipe through the dust removal chamber and the molecular sieve.

[0011] Preferably, the sewage treatment tank is provided with the following in sequence along the sewage flow direction:

[0012] Collection tank, used to intercept and filter oil and solid matter in sewage;

[0013] Regulating tank, used for preliminary sedimentation treatment of sewage and regulating sewage flow;

[0014] Electrolytic cell, used for electrocatalytic oxidation-microbial coupled treatment of sewage;

[0015] Degradation tank, used for anaerobic degradation of sewage;

[0016] Biochemical pools, used for aeration treatment of sewage;

[0017] Sedimentation tanks are used to settle sewage to obtain clear liquid;

[0018] A clear water tank is used to disinfect the clear liquid.

[0019] Preferably, an oil outlet is provided at the top of the collection tank, a sewage outlet is provided at the bottom of the collection tank, and an oil baffle, a mud baffle and an oil separator are sequentially provided in the collection tank along the sewage flow direction;

[0020] The oil baffle plate is arranged between the top plate of the collection tank and the bottom plate of the collection tank, and the top of the oil baffle plate is lower than the oil outlet, and the bottom of the oil baffle plate is higher than the sewage outlet;

[0021] The fender is extended upward from the bottom plate of the collection tank, and the top of the fender is higher than the sewage outlet;

[0022] The oil separator is extended downward from the top plate of the collection tank, and the bottom of the oil separator is lower than the top of the oil baffle.

[0023] Preferably, the regulating tank is provided with a sedimentation zone, an anoxic zone and a clarification zone in sequence along the sewage flow direction, a water outlet is provided in the middle of the partition between the sedimentation zone and the anoxic zone, and the top of the partition between the anoxic zone and the clarification zone is lower than the top plate of the regulating tank to form an overflow port;

[0024] A submersible pump with adjustable flow rate is arranged in the clarification zone to adjust the flow rate of sewage entering the electrolytic cell.

[0025] Preferably, a heat preservation device is provided at the bottom of the sewage treatment tank, and the heat preservation device includes a heater and a temperature sensor. The temperature sensor is connected to the control device by signal so as to perform negative feedback regulation on the water temperature of the sewage treatment tank.

[0026] Preferably, the outer edge of the base is provided with a plurality of lifting connectors, and the lifting connectors include lifting ears and lifting rings.

[0027] Preferably, the outer box is formed by welding corrugated steel plates.

[0028] Preferably, the inner wall surface of the outer box is provided with a heat-insulating layer.

[0029] The domestic waste treatment device, solid waste treatment furnace and sewage treatment pool provided by the utility model for field construction can effectively treat domestic waste, and only a very small amount of treatment residues need to be transported to external facilities for re-treatment, thus avoiding the environmental sanitation impact of on-site landfill, incineration and other on-site treatment methods on the work site and living area, ensuring the health of personnel, being conducive to the smooth development of construction, and avoiding environmental pollution on the construction site, while having low treatment costs;

[0030] In addition, the domestic waste treatment device for field construction can be moved and transported by hoisting or the like, is highly portable, and can be used repeatedly, thereby reducing the equipment cost for domestic waste treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of a specific embodiment of a domestic waste treatment device for field construction provided by the utility model;

[0033] Figure 2 for Figure 1 A schematic side view after removing the outer box;

[0034] Figure 3 It is a structural schematic diagram of a solid waste treatment furnace;

[0035] Figure 4 It is a schematic diagram of the sewage treatment process of the sewage treatment pool;

[0036] Figure 5 It is a schematic diagram of the structure of the collection pool;

[0037] Figure 6 This is a schematic diagram of the structure of the regulating tank.

[0038] Reference numerals:

[0039] 10-base; 20-solid waste treatment furnace; 30-sewage treatment tank; 40-control room; 50-outer box;

[0040] 21-combustion chamber; 211-insulation layer; 212-refractory layer; 213-temperature sensor; 22-slag removal chamber; 23-dust removal chamber; 24-molecular sieve; 25-chimney;

[0041] 31-collecting tank; 311-oil baffle; 312-mud baffle; 313-oil separator; 314-oil outlet; 315-sewage outlet; 32-regulating tank; 321-sedimentation zone; 322-anoxic zone; 323-clarification zone; 324-sewage outlet; 33-electrolytic cell; 34-degradation tank; 35-biochemical tank; 36-sedimentation tank; 37-filtration tank; 38-clear water tank. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The core of the utility model is to provide a domestic waste treatment device for field construction, which can effectively treat domestic waste on site with low treatment cost, avoids the impact on the environmental sanitation of the work site and living area, and is more environmentally friendly.

[0044] It should be noted that the field construction mentioned in this application document not only includes field drilling construction, but also includes field road construction, field building construction and other field team construction work.

[0045] The utility model provides a domestic waste treatment device for field construction, comprising a movable and transportable base 10, the base 10 is provided with a control room 40, a solid waste treatment furnace 20 for incinerating solid waste, and a sewage treatment pool 30 for purifying sewage, the solid waste treatment furnace 20 and the sewage treatment pool 30 are both connected to the control device in the control room 40 by signal;

[0046] The control room 40 , the solid waste treatment furnace 20 and the sewage treatment tank 30 are all packaged in an outer box 50 , and the outer box 50 is connected to the base 10 .

[0047] Please refer to Figure 1 and Figure 2 The base 10 and the outer box 50 cooperate to form a box structure, which not only facilitates the integrated transportation of the domestic waste treatment device, but also can isolate the solid waste treatment furnace 20 and the sewage treatment tank 30 from the external environment, reducing the impact of the waste treatment process on the surrounding environment, such as reducing the odor generated in sewage treatment and avoiding the problem of mosquito and fly breeding caused by the accumulation of domestic waste.

[0048] The above-mentioned box structure can be transported by hoisting or by towing. If hoisting is used, the base 10 and / or the outer box 50 should be provided with hoisting connectors for cooperating with the hoist, such as lifting ears, lifting rings, etc.; if towing is used, the bottom of the base 10 should be provided with moving wheels, and the front and rear end faces of the base 10 and / or the outer box 50 should be provided with towing connectors connected to the towing vehicle.

[0049] Please refer to Figure 1 The outer edge of the base 10 is provided with a plurality of lifting connectors such as lifting ears and lifting rings. The lifting connectors are arranged at both ends of the length direction of the base 10, near the connection point between the solid waste treatment furnace 20 and the sewage treatment tank 30, and near the connection point between the sewage treatment tank 30 and the control room 40.

[0050] The materials of the base 10 and the outer box 50 can refer to the temporary barracks set up at the construction site. For example, the outer box 50 can be formed by welding corrugated steel plates, which not only ensures safety standards such as structural strength, but also facilitates material acquisition and processing;

[0051] The inner wall surface of the outer box 50 is usually provided with a thermal insulation layer such as rock wool to prevent the temperature in the sewage treatment tank 30 from being too low in winter, thereby ensuring the living environment of the microorganisms in the sewage treatment tank 30.

[0052] The base 10 and the outer box 50 can be connected by a detachable connection method such as bolt connection, pin connection, etc., but in order to ensure structural stability and reliability during transportation, the outer box 50 and the base 10 are usually welded.

[0053] The control room 40 is used to regulate the working conditions of the solid waste treatment furnace 20 and the sewage treatment pool 30, for example, to adjust the combustion temperature of the solid waste treatment furnace 20, the inlet and outlet flow of each treatment pool of the sewage treatment pool 30, and the treatment time of domestic waste in each treatment pool, so as to adjust the integrated treatment process according to factors such as seasonal changes in ambient temperature and seasonal differences in domestic waste.

[0054] During field construction, the solid waste treatment furnace 20 is used to incinerate the solid waste. The slag produced by the incineration can be used as a plugging material or transported to a landfill for landfill treatment. The harmful gases produced are discharged after purification treatment such as adsorption and chemical reaction.

[0055] The sewage treatment pool 30 is used to purify domestic sewage such as washing wastewater and excrement. The oil substances discharged during the purification process (mostly oil substances with a density less than that of water) can be sent to the solid waste treatment furnace 20 for incineration. The non-degradable sludge can be discharged into the sludge pool or sludge tank and then transported to the sewage treatment plant for further treatment. The treated water that meets the emission standards after treatment can be discharged directly, or can be used as production water for slurry preparation and irrigation, or can be recycled as miscellaneous water for flushing toilets, roads, etc.

[0056] After the construction is completed, in order to facilitate transportation and ensure transportation safety, the solid waste treatment furnace 20 and the sewage treatment tank 30 need to be emptied, and the sludge in the sewage treatment tank 30 and the sludge tank / sludge tank must be completely pumped out by a suction pump, and then the domestic waste treatment device can be transported.

[0057] In this embodiment, the solid waste treatment furnace 20 and the sewage treatment pool 30 can effectively treat domestic waste, and only a very small amount of treatment residues need to be transported to external facilities for reprocessing, thereby avoiding the impact of on-site treatment methods such as landfill and incineration on the environmental sanitation of the work site and living area, ensuring the health of personnel, facilitating the smooth progress of construction, and avoiding environmental pollution at the construction site, while having low treatment costs;

[0058] In addition, the domestic waste treatment device for field construction can be moved and transported by hoisting and other means, is highly portable, and can be used repeatedly, thus reducing the equipment cost for domestic waste treatment.

[0059] On the basis of the above-mentioned embodiment, the structure of the solid waste treatment furnace 20 is defined, including a combustion chamber 21 for high-temperature oxidation treatment of solid waste, the slag outlet of the combustion chamber 21 is connected to the slag removal chamber 22, and the gas outlet of the combustion chamber 21 is connected to the gas outlet pipe through the dust removal chamber 23 and the molecular sieve 24.

[0060] Among them, an electric heating device is provided in the combustion chamber 21, and the temperature in the furnace can be raised to 450-800°C, so that the solid waste can be treated by high-temperature carbonization; the inner wall surface of the combustion chamber 21 is provided with an insulation layer 211 and a refractory layer 212 such as refractory bricks from the inside to the outside, so as to reduce the impact of the high temperature environment in the combustion chamber 21 on the solid waste treatment furnace 20 and ensure the safety of the solid waste treatment furnace 20.

[0061] In order to control the combustion temperature of the combustion chamber 21, a temperature sensor 213 is provided in the combustion chamber 21. The electric heating device and the temperature sensor 213 are both connected to the control device signal so as to perform negative feedback regulation on the combustion temperature. Considering that the front and left and right sides of the combustion chamber 21 are provided with a feed port, and the bottom is provided with a slag outlet, the temperature sensor 213 is usually arranged on the top surface of the combustion chamber 21.

[0062] The slag outlet of the combustion chamber 21 is connected to the slag removal chamber 22, and the slag removal chamber 22 is used to temporarily store and place the generated residue so that the residue can be cooled and restored to room temperature, which is convenient for subsequent transportation or reuse of the residue.

[0063] The gas outlet of the combustion chamber 21 is connected to the dust removal chamber 23, which is used to statically treat the gas discharged from the combustion chamber 21. On the one hand, it allows the dust in the gas to settle and remove the dust in the gas, and on the other hand, it reduces the temperature of the gas to facilitate subsequent gas purification treatment.

[0064] The dust removal chamber 23 is connected to the molecular sieve 24, which can further remove harmful components in the gas by adsorption and / or chemical reaction, and the clean gas that meets the standards is finally discharged to the external environment through the outlet pipe. The outlet pipe can be specifically configured as follows: Figure 3 The chimney 25 shown has a rain cap that can prevent rainwater and the like from entering the solid waste treatment furnace 20 .

[0065] On the basis of the above embodiment, the structure of the sewage treatment tank 30 is defined, and the sewage treatment tank 30 is provided with the following components in sequence along the sewage flow direction:

[0066] The collection tank 31 is used to intercept and filter the oil and solid substances in the sewage;

[0067] A regulating tank 32, used for preliminary sedimentation treatment of sewage and regulating sewage flow;

[0068] The electrolytic cell 33 is used for electrocatalytic oxidation-microorganism coupling treatment of sewage;

[0069] The degradation tank 34 is used for anaerobic degradation treatment of sewage;

[0070] A biochemical pool 35 is used to aerate the sewage;

[0071] A sedimentation tank 36 is used to perform secondary sedimentation treatment on the sewage to obtain clear liquid;

[0072] The clear water tank 38 is used to disinfect the clear liquid.

[0073] Considering that domestic sewage can be roughly divided into two categories, namely washing wastewater and excrement, and the properties of the two types of domestic sewage are quite different, in order to avoid blockage of the collection tank 31 and the pipeline, it is usually set that washing wastewater is taken in by the collection tank 31, while excrement is taken in by the regulating tank 32. Therefore, water inlets are provided at both the collection tank 31 and the regulating tank 32.

[0074] The collection tank 31 can intercept and filter the oil and solid substances in the washing wastewater by density, so as to prevent the solid substances such as vegetable leaves from clogging the pipeline, wherein the oil substances can be transported to the solid waste treatment furnace 20 for incineration, and the solid substances can be discharged into the sludge pool / sludge tank through the sewage outlet 315;

[0075] The regulating tank 32 can perform preliminary sedimentation treatment on domestic sewage, discharge solid matter into the sludge tank / sludge tank through the sewage outlet 324 to prevent solid matter from clogging the pipeline, and can regulate the sewage flow entering the electrolytic tank 33 to prevent the wastewater peak flow caused by the peak water use period from affecting the sewage treatment effect of the subsequent treatment tank;

[0076] Electrode plates and diaphragms are provided in the electrolytic cell 33, which can perform electrocatalytic oxidation-microbial coupling treatment on the sewage, remove larger colloidal impurities and suspended impurities in the sewage, and degrade organic pollutants such as petroleum and oil pollution introduced at the drilling site;

[0077] The degradation tank 34 is provided with a hydrolysis device to form a filler bed and a sludge bed. Through the synergistic action of hydrolytic bacteria and facultative anaerobic bacteria such as acid-producing bacteria, some organic matter in the sewage can be degraded, insoluble organic matter can be converted into soluble organic matter, and difficult-to-degrade macromolecular substances can be converted into easily degradable small molecular substances, so as to improve the biodegradability of the sewage.

[0078] The biochemical pool 35 is provided with an aeration pipe, which can maintain appropriate dissolved oxygen through aeration and utilize aerobic microorganisms to effectively remove organic matter and ammonia nitrogen and other substances in the sewage;

[0079] The sedimentation tank 36 is used to settle the sewage. The upper clear liquid overflows into the clear water tank 38. The deposited sludge part flows back to the degradation tank 34 and the biochemical tank 35 to provide a suitable growth environment for microorganisms. The rest is discharged into the sludge tank / sludge tank through the sewage outlet.

[0080] The clear water tank 38 can disinfect the clear liquid by using common disinfectants such as sodium hypochlorite solution. The clear liquid after disinfection can meet the discharge standard. The above-mentioned treated water that meets the standard can be discharged or recycled as production water or miscellaneous water.

[0081] In this embodiment, the colloidal impurities, suspended impurities, organic pollutants, ammonia nitrogen and other components in the domestic sewage are treated in sequence by the electrolytic cell 33, the degradation cell 34 and the biochemical cell 35, thereby achieving effective treatment of the domestic sewage with complex impurities.

[0082] Preferably, in order to filter out impurities in the clear liquid, a filter tank 37 may be provided between the sedimentation tank 36 and the clean water tank 38, and the filter tank 37 may be used to perform adsorption and filtration treatment on the impurities in the clear liquid. Figure 4 shown.

[0083] Based on the above embodiment, the structure of the collection pool 31 is defined, please refer to Figure 5 The top of the collection tank 31 is provided with an oil outlet 314, the bottom of the collection tank 31 is provided with a sewage outlet 315, and the collection tank 31 is provided with an oil baffle 311, a mud baffle 312 and an oil separator 313 in sequence along the sewage flow direction;

[0084] The oil baffle plate 311 is disposed between the top plate of the collection tank 31 and the bottom plate of the collection tank 31, and the top of the oil baffle plate 311 is lower than the oil outlet 314, and the bottom of the oil baffle plate 311 is higher than the sewage outlet 315;

[0085] The fender 312 is extended upward from the bottom plate of the collection tank 31, and the top of the fender 312 is higher than the sewage outlet 315;

[0086] The oil separator 313 extends downward from the top plate of the collection tank 31 , and the bottom of the oil separator 313 is lower than the top of the oil baffle 311 .

[0087] After the sewage enters the collection tank 31, oil substances with a density less than that of water float on the upper surface of the sewage, while solid substances such as vegetable leaves settle to the lower part of the sewage. Therefore, the oil baffle 311 can intercept the oil substances, and the intercepted oil substances are discharged through the oil outlet 314, while the mud baffle 312 can block the sludge and sediment at the bottom, and the intercepted solid substances are discharged through the sewage outlet 315.

[0088] In order to prevent oil from entering the regulating tank 32, an oil separator 313 is provided behind the fender 312. The oil separator 313 is arranged from top to bottom and can effectively block oil. The bottom of the oil separator 313 can be only lower than the top of the oil baffle 311, or it can be as shown in FIG. Figure 5 As shown, the oil separator 313 is lower than the top of the fender 312, and the length of the oil separator 313 is longer, so the effect of blocking oil substances is better.

[0089] On the basis of the above embodiment, the structure of the regulating tank 32 is defined. The regulating tank 32 is provided with a settling area 321, an anoxic area 322 and a clarifying area 323 in sequence along the flow direction of sewage. A water outlet is provided in the middle of the partition between the settling area 321 and the anoxic area 322. The top of the partition between the anoxic area 322 and the clarifying area 323 is lower than the top plate of the regulating tank 32 to form an overflow port.

[0090] A submersible pump with adjustable flow rate is provided in the clarification zone 323 to adjust the flow rate of sewage entering the electrolytic cell 33 .

[0091] The sedimentation area 321 is used to sediment the sludge, sediment and the like in the sewage to prevent the solid matter from entering the electrolytic cell 33 and blocking the electrolytic cell 33 or the pipeline;

[0092] The anoxic zone 322 is suitable for the growth of aerobic or facultative anaerobic microorganisms, and the above microorganisms can be used to improve the biodegradability of sewage, facilitating the subsequent degradation treatment of sewage;

[0093] A submersible pump is provided in the clarification zone 323 , and the submersible pump is used to pump sewage into the electrolytic cell 33 . The flow rate of the sewage entering the electrolytic cell 33 can be adjusted by adjusting the flow rate of the submersible pump.

[0094] In order to prevent the sewage treatment tank 30 from being unable to continue working due to a sudden failure of the submersible pump, at least two submersible pumps are usually provided in the clarification area 323, one of which is used as an emergency submersible pump and can be automatically raised by a liquid level switch in the clarification area 323.

[0095] On the basis of the above embodiment, in order to ensure the sewage treatment effect, a heat preservation device can be provided at the bottom of the sewage treatment tank 30, and the heat preservation device includes a heater and a temperature sensor. The temperature sensor is connected to the control device signal so as to perform negative feedback regulation on the water temperature of the sewage treatment tank 30, thereby ensuring that the water temperature of the sewage treatment tank 30, especially the water temperature in the electrolytic tank 33, the degradation tank 34 and the biochemical tank 35, is within an appropriate temperature range.

[0096] The specific types and models of the heater and the temperature sensor are determined according to the needs in actual production and with reference to the prior art, and will not be described in detail here.

[0097] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0098] The above is a detailed introduction to the domestic waste treatment device for field construction provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A domestic waste treatment device for field construction, characterized in that: The invention comprises a movable and transportable base (10), wherein the base (10) is provided with a control room (40), a solid waste treatment furnace (20) for incinerating solid waste, and a sewage treatment pool (30) for purifying sewage, wherein the solid waste treatment furnace (20) and the sewage treatment pool (30) are both signal-connected to a control device in the control room (40); The control room (40), the solid waste treatment furnace (20) and the sewage treatment pool (30) are all enclosed in an outer box (50), and the outer box (50) is connected to the base (10).

2. The domestic waste treatment device for outdoor construction according to claim 1, characterized in that: The solid waste treatment furnace (20) comprises a combustion chamber (21) for high-temperature oxidation treatment of solid waste, wherein a slag outlet of the combustion chamber (21) is connected to a slag removal chamber (22), and an air outlet of the combustion chamber (21) is connected to an air outlet pipe via a dust removal chamber (23) and a molecular sieve (24).

3. The domestic waste treatment device for field construction according to claim 1, characterized in that: The sewage treatment tank (30) is provided with the following components in order along the sewage flow direction: A collection tank (31) is used to intercept and filter oil and solid matter in the sewage; A regulating tank (32) for performing preliminary sedimentation treatment on the sewage and regulating the sewage flow; An electrolytic cell (33) for treating sewage by electrocatalytic oxidation-microorganism coupling; A degradation tank (34) for anaerobic degradation of sewage; A biochemical pool (35) for aerating the sewage; A sedimentation tank (36) for sedimentation treatment of sewage to obtain clear liquid; The clear water tank (38) is used to disinfect the clear liquid.

4. The domestic waste treatment device for field construction according to claim 3 is characterized in that: The top of the collection tank (31) is provided with an oil outlet (314), the bottom of the collection tank (31) is provided with a sewage outlet (315), and an oil baffle (311), a mud baffle (312) and an oil separator (313) are sequentially provided in the collection tank (31) along the sewage flow direction; The oil baffle plate (311) is arranged between the top plate of the collection tank (31) and the bottom plate of the collection tank (31), and the top of the oil baffle plate (311) is lower than the oil outlet (314), and the bottom of the oil baffle plate (311) is higher than the sewage outlet (315); The fender (312) is extended upward from the bottom plate of the collection tank (31), and the top of the fender (312) is higher than the sewage outlet (315); The oil separator (313) is extended downward from the top plate of the collection tank (31), and the bottom of the oil separator (313) is lower than the top of the oil baffle (311).

5. The domestic waste treatment device for field construction according to claim 3 is characterized in that: The regulating tank (32) is provided with a sedimentation zone (321), an anoxic zone (322) and a clarification zone (323) in sequence along the sewage flow direction; a water outlet is provided in the middle of the partition between the sedimentation zone (321) and the anoxic zone (322); the top of the partition between the anoxic zone (322) and the clarification zone (323) is lower than the top plate of the regulating tank (32) to form an overflow port; A submersible pump with adjustable flow rate is provided in the clarification zone (323) so as to adjust the flow rate of sewage entering the electrolytic cell (33).

6. The domestic waste treatment device for field construction according to any one of claims 1 to 5, characterized in that: A heat preservation device is provided at the bottom of the sewage treatment tank (30), the heat preservation device comprising a heater and a temperature sensor, and the temperature sensor is connected to the control device by signal so as to perform negative feedback regulation on the water temperature of the sewage treatment tank (30).

7. The domestic waste treatment device for field construction according to any one of claims 1 to 5, characterized in that: The outer edge of the base (10) is provided with a plurality of lifting connectors, and the lifting connectors include lifting ears and lifting rings.

8. The domestic waste treatment device for field construction according to any one of claims 1 to 5, characterized in that: The outer box (50) is formed by welding corrugated steel plates.

9. The domestic waste treatment device for field construction according to claim 8, characterized in that: The inner wall surface of the outer box (50) is provided with a heat-insulating layer.

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