Full-quantitative treatment equipment for leachate of refuse transfer station

Abstract

The utility model discloses full-quantitative treatment equipment for leachate of a refuse transfer station. The full-quantitative treatment equipment comprises a barrier oil separation device, a digestion homogenizing tank, a reaction and precipitation integrated tank, an MBR (Membrane Bioreactor), a produced water circulating barrel, an electrochemical oxidation device and a circulating filter, an outlet of the barrier oil separation device is connected with an inlet of the digestion homogenizing tank, an outlet of the digestion homogenizing tank is connected with an inlet of the reaction and precipitation integrated tank, an outlet of the reaction and precipitation integrated tank is connected with an inlet of the MBR reactor, an outlet of the MBR reactor is connected with an inlet of the produced water circulation barrel, and an outlet of the MBR reactor is connected with an outlet of the water circulation barrel. The circulating outlet of the produced water circulating barrel is connected with the inlet of the electrochemical oxidation device, the outlet of the electrochemical oxidation device is connected with the inlet of the circulating filter, the outlet of the circulating filter is connected with the circulating inlet of the produced water circulating barrel, and the bottom of the produced water circulating barrel is also provided with a standard discharge port for discharging standard sewage. According to the utility model, the carbon and nitrogen removal efficiency and effect can be improved, so that the treatment efficiency and the treatment quality of the landfill leachate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage leachate treatment, in particular to a fully quantitative treatment device for leachate from a garbage transfer station. Background Art

[0002] Leachate contains a large amount of toxic and harmful substances. If discharged without treatment, it will cause serious pollution to water bodies. As my country's environmental protection requirements become increasingly stringent, the requirements for the treatment of leachate discharge are also becoming higher and higher to avoid pollution of environmental water bodies.

[0003] In the existing wastewater treatment process of garbage transfer stations, there are many factors such as large fluctuations in water quality and quantity, regional seasonal differences, high concentration of organic pollutants, complex composition of difficult-to-degrade substances, high suspended matter, high total nitrogen, and high oil pollution. As a result, the existing leachate from garbage transfer stations has low carbon removal and denitrification efficiency and poor effect during treatment, which in turn reduces the treatment efficiency and quality of garbage leachate. Summary of the invention

[0004] The utility model aims to provide a fully quantitative treatment device for leachate from a garbage transfer station, which can improve the efficiency and effect of carbon removal and nitrogen removal, thereby improving the treatment efficiency and treatment quality of the garbage leachate.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a garbage transfer station leachate full-quantity treatment equipment, the specific implementation plan is as follows:

[0006] A fully quantitative treatment device for leachate from a garbage transfer station, comprising a screen oil separator, a digestion and homogenization tank, a reaction and precipitation integrated tank, an MBR reactor, a water production circulation barrel, an electrochemical oxidation device and a circulation filter, which are arranged in sequence along the treatment direction;

[0007] The inlet of the grille oil separator is provided with a collecting pipe network connected to the garbage compression compartment, the outlet of the grille oil separator is connected to the inlet of the digestion homogenization tank through a pipe, the outlet of the digestion homogenization tank is connected to the inlet of the reaction and precipitation integrated tank through a pipe, the outlet of the reaction and precipitation integrated tank is connected to the inlet of the MBR reactor through a pipe, the outlet of the MBR reactor is connected to the inlet of the water production circulation barrel through a pipe, the circulation outlet of the water production circulation barrel is connected to the inlet of the electrochemical oxidation device through a pipe, the outlet of the electrochemical oxidation device is connected to the inlet of the circulation filter through a pipe, the outlet of the circulation filter is connected to the circulation inlet of the water production circulation barrel, and a standard discharge port for discharging standard sewage is also provided at the bottom of the water production circulation barrel.

[0008] In some embodiments, the grille oil separator device includes a shell, the top of the shell is the inlet of the grille oil separator device, a grille oil separator plate is provided in the shell, which is used to block grease, gravel, floating objects and large suspended particles in the leachate from entering the outlet of the grille oil separator device, and a sewage outlet is provided at the bottom of the shell between the grille oil separator plate and the inlet of the grille oil separator device. The sewage outlet is connected to a garbage bin through a pipe, which is used to regularly clean the grille residue generated in the grille oil separator device to the garbage compression equipment.

[0009] In some embodiments, the digestion and homogenization tank includes an oil separator, a sand settling tank and an adjusting tank which are arranged and connected in sequence along the processing direction. The oil separator is connected to the outlet of the screen oil separator device and receives sewage discharged from the garbage compression workshop through a pipeline. A lifting pump is provided in the adjusting tank, and the lifting pump is connected to the inlet of the integrated reaction and sedimentation tank through a pipeline.

[0010] In some of the embodiments, the MBR reactor includes a denitrification tank, a nitrification tank and an MBR membrane tank which are arranged and connected in sequence along the treatment direction. The inlet of the denitrification tank is connected to the outlet of the integrated reaction and sedimentation tank through a pipeline. Part of the sludge in the MBR membrane tank is regularly returned to the nitrification tank, and part of the sludge in the nitrification tank is regularly returned to the denitrification tank. The remaining sludge in the MBR membrane tank is returned to the integrated reaction and sedimentation tank through a pipeline, and the sludge in the integrated reaction and sedimentation tank is returned to the sand settling tank of the digestion homogenization tank through a pipeline.

[0011] In some of the embodiments, a first rotary fan is connected to the nitrification tank through a pipeline, and a second rotary fan is connected to the MBR membrane tank and the denitrification tank through pipelines. The first rotary fan and the second rotary fan are used to transport the odor generated in the grille oil separator, the digestion and homogenization tank, the reaction and sedimentation integrated tank, the denitrification tank and the nitrification tank to the odor treatment device of the garbage transfer station.

[0012] Based on the above technical solution, the utility model provides a fully quantitative treatment process for leachate from a garbage transfer station, which has the following beneficial effects compared with the prior art:

[0013] 1. The wastewater is stirred by the micro-power stirring device installed in the grid oil separator to cause the wastewater to flow back, effectively improving the carbon removal and nitrogen removal efficiency of the wastewater.

[0014] 2. By pre-treating the water quality during the sludge digestion process in the digestion homogenization tank and performing short-range anaerobic reaction, the biodegradability of the wastewater is greatly improved and the treatment load of the subsequent process sections is reduced.

[0015] 3. The reaction and sedimentation integrated tank is controlled by sequential batch mode, integrating the process of water intake, drug addition, reaction, sedimentation, drainage and sludge discharge, which greatly reduces the equipment investment and floor space.

[0016] 4. On the one hand, the membrane of the MBR membrane pool intercepts the microorganisms in the reaction pool, and the concentration of the activated sludge in the pool is greatly increased, making the biochemical reaction of the wastewater degradation more rapid and thorough; on the other hand, due to the high filtration accuracy of the membrane, the effluent is guaranteed to be clear and transparent, thus eliminating the need for a secondary sedimentation tank; the function of the biochemical reactor is greatly enhanced. Compared with traditional biological treatment methods, it has the advantages of high biochemical efficiency, strong load resistance, stable effluent quality, small footprint, long sludge discharge cycle, and easy automatic control.

[0017] 5. Through the characteristics of high-efficiency oxidation ability of electrocatalytic oxidation technology, the difficult-to-degrade pollutants in the biochemical effluent can be quickly oxidized and degraded to ensure that the final effluent can stably meet the discharge standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the equipment of the present utility model.

[0019] Description of reference numerals:

[0020] 100. Grille oil separator; 110. Shell; 120. Grille oil separator plate; 130. Sewage outlet; 200. Digestion homogenization tank; 210. Grease separator; 220. Grit chamber; 230. Regulating tank; 240. Lifting pump; 300. Integrated reaction and sedimentation tank; 400. MBR reactor; 410. Denitrification tank; 420. Nitrification tank; 421. First reflux pump; 422. First rotary fan; 430. MBR membrane tank; 431. Second reflux pump; 432. Second reflux fan; 500. Water production circulation barrel; 600. Electrochemical oxidation device; 700. Circulation filter. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0022] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0023] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0025] like Figure 1 As shown, a fully quantitative treatment device for leachate from a garbage transfer station provided in this embodiment includes a screen oil separator 100, a digestion homogenization tank 200, a reaction and precipitation integrated tank 300, an MBR reactor 400, a water production circulation barrel 500, an electrochemical oxidation device 600 and a circulation filter 700 which are sequentially arranged along the treatment direction;

[0026] The inlet of the grille oil separator 100 is provided with a collection pipe network connected to the garbage compression compartment, the outlet of the grille oil separator 100 is connected to the inlet of the digestion homogenization tank 200 through a pipe, the outlet of the digestion homogenization tank 200 is connected to the inlet of the reaction and precipitation integrated tank 300 through a pipe, the outlet of the reaction and precipitation integrated tank 300 is connected to the inlet of the MBR reactor 400 through a pipe, the outlet of the MBR reactor 400 is connected to the inlet of the water production circulation barrel 500 through a pipe, the circulation outlet of the water production circulation barrel 500 is connected to the inlet of the electrochemical oxidation device 600 through a pipe, the outlet of the electrochemical oxidation device 600 is connected to the inlet of the circulation filter 700 through a pipe, the outlet of the circulation filter 700 is connected to the circulation inlet of the water production circulation barrel 500, and a standard discharge port for discharging standard sewage is also provided at the bottom of the water production circulation barrel 500.

[0027] In some of the embodiments, the grille oil separator device 100 includes a shell 110, the top of the shell 110 is the entrance of the grille oil separator device 100, a grille oil separator plate 120 is provided in the shell 110, which is used to block grease, gravel, floating objects and large suspended particles in the leachate from entering the outlet of the grille oil separator device 100, and a sewage outlet 130 is provided at the bottom of the shell 110 between the grille oil separator plate 120 and the entrance of the grille oil separator device 100. The sewage outlet 130 is connected to a garbage bin through a pipe, which is used to regularly clean the screen residue generated in the grille oil separator device 100 to the garbage compression equipment.

[0028] In some of the embodiments, the digestion homogenization tank 200 includes an oil separator 210, a grit tank 220 and an adjusting tank 230 which are arranged and connected in sequence along the processing direction. The oil separator 210 is connected to the outlet of the screen oil separator device 100, and receives the sewage discharged from the garbage compression workshop through a pipeline. A lifting pump 240 is provided in the adjusting tank 230, and the lifting pump 240 is connected to the inlet of the integrated reaction and precipitation tank 300 through a pipeline.

[0029] In some embodiments, the MBR reactor 400 includes a denitrification tank 410, a nitrification tank 420 and an MBR membrane tank 430 which are arranged and connected in sequence along the treatment direction. The inlet of the denitrification tank 410 is connected to the outlet of the integrated reaction and sedimentation tank 300 through a pipeline. Part of the sludge in the MBR membrane tank 430 is regularly returned to the nitrification tank 420, and part of the sludge in the nitrification tank 420 is regularly returned to the denitrification tank 410. The remaining sludge in the MBR membrane tank 430 is returned to the integrated reaction and sedimentation tank 300 through a pipeline, and the sludge in the integrated reaction and sedimentation tank 300 is returned to the grit tank 220 of the digestion and homogenization tank 200 through a pipeline.

[0030] In some of the embodiments, a first rotary fan 422 is connected to the nitrification tank 420 through a pipeline, and a second rotary fan is connected to the MBR membrane tank 430 and the denitrification tank 410 through pipelines. The first rotary fan 422 and the second rotary fan are used to transport the odor generated in the grille oil separator 100, the digestion homogenization tank 200, the reaction and sedimentation integrated tank 300, the denitrification tank 410 and the nitrification tank 420 to the odor treatment device of the garbage transfer station.

[0031] In some of the embodiments, the garbage leachate flows into the grille oil separator 100 through the collection pipe network and the inlet of the grille oil separator 100 to remove grease, sand, floating objects and large suspended particles, and the screen residue generated in the grille oil separator 100 is regularly cleaned to the garbage compression equipment.

[0032] In some of the embodiments, water from the outlet of the grille oil separator 100 enters the digestion homogenization tank 200, and a micro-power stirring device arranged in the digestion homogenization tank 200 regulates the water volume and homogenizes the water quality of the wastewater, and the sludge in the digestion homogenization tank 200 is anaerobically digested and reduced; the leachate in the digestion homogenization tank 200 enters the integrated reaction and sedimentation tank 300 under the action of a pump to remove the suspended solid matter and colloidal organic matter in the wastewater.

[0033] In actual use, the digestion homogenization tank 200 combines the functions of water quality regulation and sludge digestion. It utilizes facultative bacteria and anaerobic bacteria to carry out anaerobic biochemical reactions in an anaerobic environment to decompose organic matter in the sludge, thereby achieving sludge reduction, stabilization, and harmlessness, and reducing greenhouse gas emissions. At the same time, the water quality is pretreated during the sludge digestion process, and a short-range anaerobic reaction is carried out, which greatly improves the biodegradability of the wastewater and reduces the processing load of subsequent process sections.

[0034] The reaction and precipitation integrated tank described in this embodiment is a sewage treatment device that integrates reaction and precipitation functions; it converts suspended matter and some gelatinous organic matter in wastewater into sediments, thereby achieving the purpose of purifying water quality. And through the existing sequencing batch control, it integrates the process of water intake, drug addition, reaction, precipitation, drainage, and mud discharge, greatly reducing equipment investment and floor space.

[0035] In some of the embodiments, the supernatant in the digestion homogenization tank 200 enters the denitrification tank 410 in sequence under the action of a pump for denitrification reaction to remove organic matter and total nitrogen, enters the nitrification tank 420 for nitrification reaction, and enters the MBR membrane tank 430 to achieve organic matter degradation in the wastewater. The effluent from the MBR membrane tank 430 enters the water production circulation barrel 500, and the effluent from the water production circulation barrel 500 enters the electrochemical oxidation device 600 to directly and indirectly oxidize the wastewater before discharge or recycling.

[0036] In some of the embodiments, the sludge in the MBR membrane tank 430 and the sludge in the integrated reaction and sedimentation tank 300 are discharged into the digestion and homogenization tank 200 for anaerobic reduction, and the sludge generated in the other processes is concentrated in the screen oil separator 100 and discharged regularly; the odor generated in the screen oil separator 100, the digestion and homogenization tank 200, the integrated reaction and sedimentation tank 300, the nitrification tank 420 and the denitrification tank 410 is transported to the exhaust gas treatment device for treatment through the first rotary fan 422 and the second rotary fan, and is discharged into the atmosphere after meeting the standards.

[0037] The MBR membrane pool 430 described in this embodiment is composed of A / O process + membrane separation system. MBR technology is a new wastewater treatment process that organically combines membrane separation technology and biotechnology, also known as membrane separation activated sludge method. This reactor combines the advantages of membrane treatment technology and biological treatment technology. The mud-water separation unit in the MBR membrane pool 430 is an immersed ultrafiltration membrane component, which is used to completely replace the secondary sedimentation tank used in the existing process.

[0038] In actual use, membrane separation equipment is used to intercept the activated sludge and macromolecular organic matter in the biochemical reaction tank. The hydraulic retention time (HRT) and sludge retention time (SRT) can be controlled separately, and the difficult-to-degrade substances continue to react and degrade in the reactor. On the one hand, the membrane intercepts the microorganisms in the reaction tank, and the concentration of activated sludge in the use tank is greatly increased, so that the biochemical reaction of the degraded wastewater is carried out more quickly and thoroughly; on the other hand, due to the high filtration accuracy of the membrane, the effluent is clear and transparent, thus eliminating the need for a secondary sedimentation tank. Therefore, the membrane biochemical reactor process greatly enhances the function of the biochemical reactor through membrane separation technology. Compared with traditional biological treatment methods, it has the advantages of high biochemical efficiency, strong load impact resistance, stable effluent water quality, small footprint, long sludge discharge cycle, and easy automatic control.

[0039] The MBR membrane pool 430 described in this embodiment has the following technical effects:

[0040] Through the dominant microbial groups (nitrifying bacteria, denitrifying bacteria and common heterotrophic bacteria, etc.) in the microbial community activated sludge, by improving the aeration method and the activated sludge carrier and medium, they utilize the nutrients in the surrounding environment (i.e. organic pollutants in the water) for metabolism during their growth process, thereby achieving the purpose of degrading pollutants and purifying water quality.

[0041] High-quality and stable effluent quality: Due to the efficient separation of the membrane, the separation effect is much better than that of the traditional sedimentation tank. The treated effluent is extremely clear, the suspended solids and turbidity are close to zero, and bacteria and viruses are largely removed. At the same time, membrane separation also allows the microorganisms to be completely intercepted in the bioreactor, so that a high concentration of microorganisms can be maintained in the system, which not only improves the overall removal efficiency of the reaction device for pollutants and ensures good effluent quality, but also the reactor has good adaptability to various changes in the inlet load (water quality and water volume), is resistant to shock loads, and can stably obtain high-quality effluent water quality.

[0042] Small amount of residual sludge production: The process can be operated under high volumetric load and low sludge load, with low residual sludge production (theoretically zero sludge discharge can be achieved), reducing operating costs.

[0043] Small footprint, not restricted by setting location: high concentration of microorganisms can be maintained in the bioreactor, the volume load of the treatment device is high, and the footprint is greatly saved; the process flow is simple, the structure is compact, and the footprint is small.

[0044] Ammonia nitrogen and difficult-to-degrade organic matter can be removed: Since the microorganisms are completely intercepted in the bioreactor, it is conducive to the interception and growth of slow-growing microorganisms such as nitrifying bacteria, and the nitrification efficiency of the system is improved. At the same time, the hydraulic retention time of some difficult-to-degrade organic matter in the system can be increased, which is conducive to improving the degradation efficiency of difficult-to-degrade organic matter.

[0045] In some of the embodiments, the effluent from the MBR membrane pool 430 enters the water production circulation barrel 500, and the electrochemical oxidation device 600 in the water production circulation barrel 500 directly and indirectly oxidizes the wastewater before discharging it or recycling it for use.

[0046] The working principle of the electrochemical oxidation device 600 described in this embodiment is that sewage flows through the electrolytic cell, and through direct current, electrons are captured at the anode to oxidize organic matter, or low-valent metals are first oxidized into high-valent metal ions, and then the high-valent metal ions oxidize the organic matter. This method makes certain functional groups of the organic matter have electrochemical activity, and through the forced action of the electric field, the structure of the functional groups changes, thereby changing the chemical properties of the organic matter, reducing its toxicity or even eliminating it, thereby enhancing its biodegradability.

[0047] The direct oxidation described in this embodiment is to convert pollutants directly into harmless substances through anodic oxidation; the power consumption cost of electrochemical oxidation is often lower than that of chemical oxidation.

[0048] The indirect electrolytic oxidation described in this embodiment refers to a process in which an organic reactant is oxidized into a desired product using an aqueous salt solution of a variable-valent metal in a chemical reactor, and then the used aqueous salt solution is sent to an electrolytic cell and converted into the desired oxidant.

[0049] In actual use, the wastewater from transfer stations usually contains a small amount of pollutants that are difficult to biodegrade, which often makes it difficult for the effluent after biochemical treatment to stably meet emission standards. The electrocatalytic oxidation technology has a high-efficiency oxidation capacity and can quickly oxidize and degrade the difficult-to-degrade pollutants in the biochemical effluent to ensure that the final effluent can stably meet emission standards.

[0050] The compliance standards described in this embodiment are the standards required by Table 2 of "Water Quality for Industrial Water Use in Urban Wastewater Recycling" (GB / T19923) and "Pollution Control Standards for Domestic Waste Landfill" (GB16889).

[0051] In some of the embodiments, the sludge in the MBR membrane tank 430 and the sludge in the integrated reaction and sedimentation tank 300 are both discharged into the digestion and homogenization tank 200 for anaerobic reduction and then discharged.

[0052] In some of the embodiments, the odor generated in the grille oil separator 100, the digestion homogenization tank 200, the integrated reaction and sedimentation tank 300, the nitrification tank 420 and the denitrification tank 410 is transported to the exhaust gas treatment device for treatment through an induced draft fan, and is discharged into the atmosphere after meeting the standards.

[0053] The fully quantitative treatment equipment for leachate from a garbage transfer station provided in this embodiment is used in practice:

[0054] First, the leachate from the garbage transfer station automatically flows into the grille oil separator 100 through the collection pipe network;

[0055] Then, the screen oil separator 100 processes the leachate to remove grease, large suspended particles, sand and floating objects in the leachate;

[0056] Then, the water effluent from the grille oil separator 100 enters the digestion homogenization tank 200 through a pipeline or a pump.

[0057] Then, the micro-power stirring device in the digestion and homogenization tank 200 operates to adjust the amount of wastewater and homogenize the water quality, and part of the biochemical excess sludge is anaerobic digested and reduced;

[0058] Then, the leachate in the digestion and homogenization tank 200 is pumped into the reaction and precipitation integrated tank 300;

[0059] Then, the reaction-precipitation integrated tank 300 removes SS (solid matter in suspension) and part of colloidal organic matter in the leachate;

[0060] Then, the supernatant in the integrated reaction and sedimentation tank 300 is pumped into the MBR reactor 400;

[0061] Then, denitrification treatment is carried out in the denitrification tank 410 in the MBR reactor 400, and then the wastewater is transported to the nitrification tank 420 for digestion reaction to remove organic matter in the supernatant and reduce total nitrogen, and then the wastewater is transported to the MBR membrane tank 430 to further degrade organic matter in the supernatant;

[0062] Then, the effluent from the MBR membrane pool 430 enters the water production circulation barrel 500 for deep treatment;

[0063] Finally, after direct oxidation and indirect oxidation by the electrochemical oxidation device 600 in the water production circulation barrel 500, the treated water quality meets the requirements of Table 2 of the "Water Quality for Industrial Water Recycling in Urban Wastewater" (GB / T19923) and the "Pollution Control Standard for Domestic Waste Landfill" (GB16889) and can be discharged or reused for station ground washing, station greening, toilet flushing, etc.

[0064] In the above process, the sludge in the screen oil separator 100 is regularly transported out for treatment; the sludge in the MBR membrane tank 430 and the sludge in the integrated reaction and sedimentation tank 300 are returned to the screen oil separator 100 to further improve the treatment quality of the leachate; and the wastewater in the MBR membrane tank 430 flows back to the nitrification tank 420, and the wastewater in the nitrification tank 420 flows back to the denitrification tank 410 for repeated treatment to improve the treatment effect of the leachate.

[0065] The micro-power stirring device described in this embodiment adopts the micro-power stirring device in the prior art, which will not be described in detail here.

[0066] The utility model provides a garbage transfer station leachate full-quantity treatment equipment and treatment process thereof, compared with the prior art:

[0067] 1. The wastewater is stirred by the micro-power stirring device disposed in the grid oil separator 100 to cause the wastewater to reflux, thereby effectively improving the carbon removal and nitrogen removal efficiency of the wastewater.

[0068] 2. By pre-treating the water quality during the sludge digestion process in the digestion homogenization tank 200 and performing a short-range anaerobic reaction, the biodegradability of the wastewater is greatly improved and the processing load of the subsequent process sections is reduced.

[0069] 3. The reaction and sedimentation integrated tank 300 uses batch control to integrate the process of water intake, drug addition, reaction, sedimentation, drainage and sludge discharge, which greatly reduces equipment investment and floor space.

[0070] 4.MBR membrane pool 430 On the one hand, the membrane intercepts the microorganisms in the reaction pool, and the concentration of activated sludge in the pool is greatly increased, making the biochemical reaction of degrading wastewater more rapid and thorough; on the other hand, due to the high filtration accuracy of the membrane, the effluent is clear and transparent, thus eliminating the need for a secondary sedimentation tank; the function of the biochemical reactor is greatly enhanced. Compared with traditional biological treatment methods, it has the advantages of high biochemical efficiency, strong load impact resistance, stable effluent quality, small footprint, long sludge discharge cycle, and easy automatic control.

[0071] 5. Through the characteristics of high-efficiency oxidation ability of electrocatalytic oxidation technology, the difficult-to-degrade pollutants in the biochemical effluent can be quickly oxidized and degraded to ensure that the final effluent can stably meet the discharge standards.

[0072] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A fully quantitative treatment equipment for leachate from a garbage transfer station, characterized in that: It comprises a screen oil separator (100), a digestion homogenization tank (200), a reaction and precipitation integrated tank (300), an MBR reactor (400), a water production circulation barrel (500), an electrochemical oxidation device and a circulation filter (700) which are sequentially arranged along a treatment direction; The inlet of the grille oil separator (100) is provided with a collection pipe network connected to the garbage compression compartment, the outlet of the grille oil separator (100) is connected to the inlet of the digestion homogenization tank (200) through a pipe, the outlet of the digestion homogenization tank (200) is connected to the inlet of the integrated reaction and precipitation tank (300) through a pipe, the outlet of the integrated reaction and precipitation tank (300) is connected to the inlet of the MBR reactor (400) through a pipe, and the outlet of the MBR reactor (400) is connected to the inlet of the MBR reactor (400) through a pipe. The water circulation channel is connected to the inlet of the water production circulation barrel (500), the circulation outlet of the water production circulation barrel (500) is connected to the inlet of the electrochemical oxidation device (600) through a pipeline, the outlet of the electrochemical oxidation device (600) is connected to the inlet of the circulation filter (700) through a pipeline, the outlet of the circulation filter (700) is connected to the circulation inlet of the water production circulation barrel (500), and a standard discharge port for discharging standard sewage is also provided at the bottom of the water production circulation barrel (500).

2. The fully quantitative treatment equipment for leachate from a garbage transfer station according to claim 1, characterized in that: The grille oil separator device (100) comprises a shell (110), the top of the shell (110) being the inlet of the grille oil separator device (100), a grille oil separator plate (120) being arranged in the shell (110) for blocking grease, sand, floating matter and large suspended matter in the leachate from entering the outlet of the grille oil separator device (100), and a sewage outlet (130) being arranged at the bottom of the shell (110) between the grille oil separator plate (120) and the inlet of the grille oil separator device (100), the sewage outlet (130) being connected to a garbage bin via a pipeline for regularly cleaning the grille residue generated in the grille oil separator device (100) to a garbage compression device.

3. The fully quantitative treatment equipment for leachate from a garbage transfer station according to claim 1, characterized in that: The digestion homogenization tank (200) comprises an oil separator (210), a grit chamber (220) and a regulating tank (230) which are sequentially arranged and connected along the processing direction; the oil separator (210) is connected to the outlet of the screen oil separator device (100) and receives sewage discharged from the garbage compression workshop through a pipeline; a lifting pump (240) is provided in the regulating tank (230), and the lifting pump (240) is connected to the inlet of the integrated reaction and precipitation tank (300) through a pipeline.

4. The fully quantitative treatment equipment for leachate from a garbage transfer station as claimed in claim 2 or 3, characterized in that: The MBR reactor (400) comprises a denitrification tank (410), a nitrification tank (420) and an MBR membrane tank (430) which are sequentially arranged and sequentially connected along a treatment direction. The inlet of the denitrification tank (410) is connected to the outlet of the reaction and sedimentation integrated tank (300) through a pipeline. Part of the sludge in the MBR membrane tank (430) is periodically returned to the nitrification tank (420). Part of the sludge in the nitrification tank (420) is periodically returned to the denitrification tank (410). The remaining sludge in the MBR membrane tank (430) is returned to the reaction and sedimentation integrated tank (300) through a pipeline. The sludge in the reaction and sedimentation integrated tank (300) is returned to the grit tank (220) of the digestion and homogenization tank (200) through a pipeline.

5. The fully quantitative treatment equipment for leachate from a garbage transfer station as claimed in claim 4, characterized in that: The nitrification tank (420) is connected to a first rotary fan (422) via a pipeline, and the MBR membrane tank (430) and the denitrification tank (410) are both connected to a second rotary fan via pipelines. The first rotary fan (422) and the second rotary fan are used to transport odor generated in the grille oil separator (100), the digestion homogenization tank, the reaction and sedimentation integrated tank (300), the denitrification tank (410) and the nitrification tank (420) to an odor treatment device of a garbage transfer station.

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