CN209815898U - Vacuum sewage biodegradation sewage tank device for train - Google Patents
Vacuum sewage biodegradation sewage tank device for train Download PDFInfo
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- CN209815898U CN209815898U CN201920031119.3U CN201920031119U CN209815898U CN 209815898 U CN209815898 U CN 209815898U CN 201920031119 U CN201920031119 U CN 201920031119U CN 209815898 U CN209815898 U CN 209815898U
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Abstract
The utility model relates to a vacuum sewage biodegradable filth case device for train, including filth case and control system, biological pretreatment room and advanced oxidation chamber that have mutual intercommunication in the filth case, biological pretreatment room is used for carrying out preliminary degradation to the filth, controls pollutant index in elementary standard within range, advanced oxidation chamber is used for carrying out thorough oxidative decomposition to the aquatic pollutant after the preliminary treatment, directly discharges the rail with pollutant index control in emission standard within range. The utility model discloses realize the on-line treatment of sewage and filth, the water after the processing satisfies in line standard vehicle-mounted emission to the rail, and the solid not only can not pollute all ring edge borders by the periodic cleaning of website, still can prolong the station operation cycle of decontaminating, performance furthest's throughput in limited space.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, in particular to vacuum sewage biodegradable filth case device for train.
Background
At present, toilet sewage of high-speed rail and motor train unit trains is collected into an under-train sewage tank through a vacuum excrement collecting system. As the sewage tank only collects and does not discharge waste water during the running of the train, the sewage tank is often overflowed during the peak period of passenger transport, the vacuum toilet stool is suspended for use, and inconvenience is brought to passengers. The waste water in the sewage tank must be pumped by ground staff every day, enters a municipal pipe network after being pretreated by a septic tank, and is treated and discharged by a sewage treatment plant in a unified way. Not only consumes a large amount of manpower and material resources, but also has poor working environment and brings adverse effects on the health of workers.
Most of the existing online sewage treatment devices can be theoretically realized, and in practice, the concentration of the train sewage pollutants is high, the COD, ammonia nitrogen and suspended matter content are high, although the B/C ratio is about 0.5 (the biodegradability is good), the nutrition ratio of C: N: P is seriously unbalanced, strains and fillers adopted by the conventional anaerobic and aerobic biochemical treatment are inhibited under the severe conditions, normal life activities are difficult to carry out, and even the strains and the fillers cannot survive, the treatment capacity and the treatment capacity of the strains and the fillers on the sewage are quite limited, and the secondary standard in GB18918-2002 pollutant discharge Standard of urban Sewage treatment plants is not reached. The daily sewage amount of the train sewage tank can reach 600L, and even if sufficient sterilization and disinfection treatment is carried out on the effluent water in the environment that a domestic railway network is densely developed and passes through a core urban area, the ecological pollution to surrounding people, atmosphere, water and the like can not be denied.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides one kind and both can guarantee that play water quality of water satisfies straight-line standard, can improve the vacuum sewage biodegradable filth case device for train of sewage treatment ability again by a wide margin.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a vacuum sewage biodegradation sewage tank device for a train comprises a sewage tank and a control system, wherein a biological pretreatment chamber and an advanced oxidation chamber which are communicated with each other are arranged in the sewage tank, the biological pretreatment chamber is used for carrying out primary degradation on sewage and controlling pollutant indexes within a primary standard range, and the advanced oxidation chamber is used for carrying out thorough oxidative decomposition on the pretreated pollutants in water and controlling the pollutant indexes within a discharge standard range to directly discharge a rail;
the biological pretreatment chamber is internally provided with a biological culture chamber and a biological contact chamber which are communicated in sequence;
the biological culture chamber is used for separating solid and liquid, the solid is intercepted in the biological culture chamber, the liquid flows into the biological contact chamber, an upper layer of filter screen and a lower layer of filter screen are arranged in the biological culture chamber, a filler is filled between the lower layer of filter screen and the upper layer of filter screen, and anaerobic efficient strains are attached to the filler;
the biological contact chamber is internally provided with an anoxic zone, an aerobic zone and an ultrafiltration membrane group zone which are sequentially communicated, biological fillers and aeration pipes are arranged in the anoxic zone and the aerobic zone, and treated water flows into the ultrafiltration membrane group zone; an MBR (membrane bioreactor) filter membrane assembly and a water collecting pipeline are arranged in the ultrafiltration membrane group chamber, and the treated clear water enters the advanced oxidation chamber;
and a plurality of groups of electrolysis devices and power modules are arranged in the advanced oxidation chamber, and each group of electrolysis devices is connected with the power modules in series.
Furthermore, the filler arranged in the biological culture chamber is ceramsite filler, and the ceramsite filler is divided into a plurality of layers from bottom to top according to different particle sizes from large to small.
Further, the ceramsite filler is divided into three layers from bottom to top, and the particle size of each layer is 10mm, 5mm and 3 mm.
Further, the biological filler installed in the biological contact chamber is polyurethane biological filler, and efficient strains are added to culture the biological membrane.
Further, the high-efficiency strain consists of domesticated nitrobacteria, denitrifying bacteria and bacillus.
Further, the ultrafiltration membrane group area is provided with a high-level liquid level switch, a low-level liquid level switch and a warning liquid level switch, the liquid level in the ultrafiltration membrane group area is controlled to drain when reaching the high-level liquid level switch, the liquid level in the ultrafiltration membrane group area is controlled to stop draining when reaching the low-level liquid level switch, and a warning prompt is given when reaching the warning liquid level switch.
Furthermore, a negative pressure meter for detecting the pressure difference between the inside and the outside of the MBR filter membrane assembly is arranged on the water collecting pipeline, and the negative pressure meter is connected with a pressure difference alarm device.
Further, the electrolysis device is composed of a plurality of titanium-based electrode plates which are alternately arranged.
Further, a high-pressure flushing valve, a flushing drain valve and a dosing cleaning valve are arranged on the sewage tank, wherein the high-pressure flushing valve is used for flushing the sewage tank, and the dosing cleaning valve is used for dosing to clean the sewage tank.
In summary, the utility model discloses a vacuum sewage biodegradation sewage case device for train, realized the online processing function of sewage and filth, through the reasonable organization of each process steps such as biodegradable preliminary treatment and advanced oxidation advanced treatment, ensure that under the train operating condition, the processable water yield reaches 600L every day, the solid matter is held back and is stored, the water after the processing satisfies second grade standard in GB18918-2002 "urban sewage treatment plant pollutant emission standard" completely, water can discharge to the rail along with the car, the solid is cleared up by the website regularly. The utility model discloses not only exert furthest's throughput in limited space, ensure water treatment efficiency and quality, it is low to have solved conventional treatment method throughput, and the defect that the treatment effect is poor has prolonged the station operation cycle of decontaminating moreover, saves original ground processing system, alleviates the load of rear end treatment factory, also can not cause ecological pollution to surrounding environment and geology simultaneously, can satisfy the requirement of train on-line operation completely, realizes really using on the train.
The utility model discloses can be used to the train of high-speed railway motor car, the ordinary speed of a motor vehicle, can be used to the sewage treatment that vacuum collection just system or gravity type system collected.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
fig. 2 is a plan view of the filth tank of fig. 1.
As shown in fig. 1 and fig. 2, a sewage tank 1, a pressure air source 2, a first partition plate 3, a biological culture chamber 4, a biological contact chamber 5, an advanced oxidation chamber 6, a lower filter screen 7, an upper filter screen 8, a sewage inlet 9, anaerobic fillers 10, a high-pressure flushing valve 11, a dosing cleaning valve 12, a flushing drain valve 13, a second partition plate 14, an anoxic zone 15, an aerobic zone 16, an ultrafiltration membrane group zone 17, a third partition plate 18, biological fillers 19, an aeration pipe 20, an antifreezing cleaning and sewage discharging valve 21, a return pipe 22, a heating plate 23, a filter membrane group 24, a suction pump 25, an electrolysis device 26, a negative pressure gauge 27, a 95% liquid level switch 28, an 80% liquid level switch 29, a 70% liquid level switch 30, an overflow pipe 31 and a lifting lug 32.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
as shown in FIG. 1 and FIG. 2, the utility model provides a pair of vacuum sewage biodegradation sewage tank device for train, including sewage tank 1 and control system. Waste water and sewage discharged by equipment such as a wash basin, a toilet and the like flow into the sewage tank 1 uniformly, lifting lugs 32 are arranged at four corners of the top of the sewage tank 1, and the sewage tank 1 is hung below a vehicle body chassis through the lifting lugs 32.
The sewage tank 1 is provided with a biological pretreatment chamber and an advanced oxidation chamber 6 which are communicated with each other, and the biological pretreatment chamber and the advanced oxidation chamber 6 are separated by a first partition plate 3. The biological pretreatment chamber is used for primarily degrading the sewage entering the sewage tank 1, the pollutant indexes are controlled in a primary standard range, the primary standard is the advanced oxidation water inlet standard, the standard range is that the main indexes in the water are controlled to be below 1000mg/L, the ammonia nitrogen content is below 600mg/L, SS is below 50mg/L, and the pH value is between 6 and 9, so that the water quality is ensured to meet the water inlet requirement of advanced oxidation treatment. The advanced oxidation chamber 6 is a core treatment process and is used for carrying out nonselective complete oxidative decomposition on pollutants in the pretreated water, and controlling the indexes of the pollutants in a discharge standard range to be directly discharged into a rail, wherein the discharge standard is a secondary standard in GB18918-2002 pollutant discharge Standard of urban wastewater treatment plants.
The biological pretreatment chamber is internally provided with a biological culture chamber 4 and a biological contact chamber 5 which are communicated in sequence, and the biological culture chamber 4 and the biological contact chamber 5 are separated by a second clapboard 14.
Biological growth chamber 4 is used for solid and liquid separation. Waste water and dirt enter the biological culture chamber 4 firstly, solid matters (such as toilet paper, hard sundries and the like) are intercepted in the biological culture chamber 4, liquid flows into the biological contact chamber 5, and the intercepted solid matters are cleaned and discharged at a station regularly.
In this embodiment, a sewage inlet 9 is arranged at the bottom of the biological culture chamber 4, an upper layer filter screen and a lower layer filter screen are arranged in the biological culture chamber 4, a filler 10 is filled between the lower layer filter screen 7 and the upper layer filter screen 8, and anaerobic efficient strains are attached to the filler 10. The lower layer filter screen 7 and the upper layer filter screen 8 are tiled in the biological culture chamber 4 and fixed. Sewage flows through the lower filter screen 7, the filler 10 and the upper filter screen 8 from bottom to top, intercepted solids are deposited at the bottom of the biological culture chamber 4, and liquid is fully contacted with the filler 10 in the ascending process.
A flow opening in the form of a grid is provided in the upper part of the second partition 14, and the liquid filtered in the biological growth chamber 4 flows into the biological contact chamber 5 through the flow opening in the upper part of the second partition 14. Therefore, the biological culture chamber 4 is of a structure with bottom sewage inlet and upper water discharge, which is not only beneficial to the deposition of solids and the filtration of liquid, but also convenient for the daily maintenance of the biological culture chamber 4 at the same time for ensuring the filtration efficiency and effect.
In the preferred embodiment, the filler 10 is a ceramsite filler, and the surface of the ceramsite filler is of a microporous structure, so that anaerobic efficient strains can be attached to the ceramsite filler. The grain size of the ceramsite is divided into three grades from bottom to top, namely a large grade, a medium grade and a small grade, the grain size is preferably 10mm, 5mm and 3mm from bottom to top, the void ratio is more than or equal to 40 percent, and the specific surface area is more than or equal to 5000cm2Per gram, sewage passes through a large layer, a middle layer and a small layer of ceramsite fillers 10 with different particle sizes in sequence to be filled in the ceramsiteAnaerobic high-efficiency strains are pre-added to the material 10, the high-efficiency strains are selected from anaerobic (facultative) strains which have strong tolerance and are easy to live in extreme environments, and the fixed filler 10 is used as a carrier to culture a biological membrane consisting of anaerobic bacteria. When passing through the three-stage filler 10, the sewage fully reacts with anaerobic bacteria attached to the sewage to complete a hydrolysis acidification process, and meanwhile, the high-efficiency strains continuously decompose organic substances trapped on the surface of the filler 10, so that self-alternation and pollutant purification are realized, and the cleaning period of the biological culture chamber 4 is prolonged. Of course, other fillers having the function of filtering and attaching bacteria can be used as the filler 10.
The side surface of the biological culture chamber 4 is provided with a high-pressure flushing valve 11, a drug adding and cleaning valve 12 and a flushing drain valve 13, and the flushing drain valve 13 is an anti-freezing emptying valve of the biological culture chamber 4. After the sanitary system of the train runs for a certain period, solid matters intercepted by the two layers of filter screens 7 and 8 in the biological culture chamber 4 need to be cleaned so as to recover the normal storage and filtration capacity of the biological culture chamber, ground pressure water is in butt joint with the high-pressure flushing valve 11, a ground sewage discharge port is in butt joint with the flushing drain valve 13, and the two layers of filter screens 7 and 8 are continuously flushed under the action of the pressure water, so that the solid matters are scattered and discharged into the ground sewage discharge port along with the flushing sewage discharge port. After the high-pressure water washing is carried out for a plurality of times, the biological culture chamber 4 needs to be cleaned by adding chemicals once, and cleaning agents are added into the biological culture chamber 4 through the chemical adding cleaning valve 12 to eliminate scaling and recover the filtering capacity.
The biological contact chamber 5 is provided with an anoxic zone 15, an aerobic zone 16 and an ultrafiltration membrane group zone 17 which are communicated in sequence, and the anoxic zone 15, the aerobic zone 16 and the ultrafiltration membrane group zone 17 are separated by two third clapboards 18. The biological contact chamber 5 is used for carrying out anoxic and aerobic microbial treatment on the liquid to remove partial pollutants such as COD (chemical oxygen demand), ammonia nitrogen and the like in water. The pollutant index of the water after degradation treatment is controlled within the primary standard range, and the water quality is ensured to meet the water inlet requirement of advanced oxidation treatment.
Biological fillers 19 are arranged in the anoxic zone 15 and the aerobic zone 16, the biological fillers 19 are placed when the sewage tank 1 is packaged, and anaerobic microorganisms and aerobic microorganisms are respectively attached to the biological fillers 19 and used for carrying out biodegradation treatment on liquid. The biological filler 19 has a net-shaped cylindrical structure, and has the functions ofProvides an attachment site for microorganisms. In the embodiment, the biological filler 19 is a multi-dimensional polyurethane biological filler, the void ratio is more than or equal to 98 percent, and the specific surface area is more than or equal to 4000cm2(ii) in terms of/g. The efficient microbial inoculum is added and cultured in the biological filler 19 in advance, preferably, the efficient strain consists of domesticated nitrobacteria, denitrifying bacteria and bacillus, the high biological activity can be kept in sewage with unbalanced nutrition ratio, and the strain forms a stable biological film in the biological filler 19 and is used for degrading pollutants such as COD (chemical oxygen demand), ammonia nitrogen and the like in the water.
The bottom of the anoxic 15 area and the aerobic 16 area is laid with an aeration pipe 20, the aeration pipe 20 is connected with a pressure air source 2, and the aeration pipe 20 is provided with 2 exhaust holes (not shown in the figure) which form an angle of 45 degrees with the vertical direction. The aeration pipe 20 is used for aerating the anoxic 15 area and the aerobic 16 area. Aeration is carried out in the anoxic zone 15 for stirring and mixing, so that gas and liquid are fully combined, and smooth biological reaction is facilitated. Aeration is carried out in the aerobic zone 16 to increase the dissolved oxygen content, and the DO index is controlled between 4 and 5 mg/L.
The liquid circulation opening between the anoxic zone 15 and the aerobic zone 16 is arranged at the bottom of the third partition plate 18, and the liquid in the anoxic zone 15 flows into the aerobic zone 16 through the circulation opening at the bottom of the third partition plate 18. The bottom of the aerobic zone 16 is communicated with the bottom of the anoxic zone 15 through a return pipe 22, a return pump (not shown) is arranged on the return pipe 22, and the activated sludge in the aerobic zone 16 is periodically conveyed to the front end of the anoxic zone 15 by the return pump according to a set return ratio to form sludge return for continuously carrying out anaerobic and aerobic biochemical treatment.
The bottom of the box body of the biological contact chamber 5 is provided with a heating plate 23, and a temperature control system is arranged to ensure that the liquid chamber 5 maintains the suitable survival temperature of aerobic microorganisms, and the heating plate 23 can ensure that the temperature of water in the liquid chamber 5 is between 15 and 30 ℃ in a low-temperature environment in winter. An overflow pipe 31 is arranged on the top of the biological contact chamber 5, so that the normal air pressure inside and outside the equipment is maintained during aeration, and water in the equipment can timely escape when a pipeline is blocked or the water overflows due to abnormity.
The liquid in the aerobic zone 16 and the ultrafiltration membrane group zone 17 are communicated through a communication port (not shown in the figure) at the top of the third partition plate 18 between the aerobic zone and the ultrafiltration membrane group zone. The MBR filter membrane module 24 is installed in the ultrafiltration membrane module area 17, each membrane module is composed of a plurality of MBRs (Membrane Bio-Reactor), and the MBR filter membrane module 24 is not limited to a flat membrane, a hollow fiber membrane and the like and is used for realizing sludge-water separation. The ultrafiltration membrane group area 17 is internally matched with a water collecting pipeline, one end of each MBR (membrane bioreactor) membrane component 24 is connected with the water collecting pipeline in parallel, a suction pump 25 is arranged on the water collecting pipeline, and the clean water filtered by the MBR membrane component 24 is pumped into the high-stage oxidation chamber 6 by the suction pump 25.
Under the condition of continuous aeration, the suction pump 25 generates negative pressure in the MBR filter membrane module 24 and the water collecting pipeline through the pipeline to realize the sludge-water separation of the ultrafiltration membrane module area 17, and cleaner water enters the advanced oxidation chamber 6. And a negative pressure meter 27 is arranged on a pipeline at the front end of the suction pump 25 and is used for detecting the internal and external pressure difference of the MBR filter membrane assembly 24, alarming is carried out after the internal and external pressure difference exceeds a set value, and the MBR filter membrane assembly 24 is prompted to be abnormal, so that the system cannot normally operate.
The side wall of the ultrafiltration membrane module area 17 of the biological contact chamber 5 is provided with a warning liquid level, a high-level liquid level and a low-level liquid level, in this embodiment, the warning liquid level is a 95% liquid level switch 28, the high-level liquid level is an 80% liquid level switch 29, and the low-level liquid level is a 70% liquid level switch 30, and is used for detecting the liquid level of liquid in the ultrafiltration membrane module area 17 and controlling the starting and stopping of the MBR filtration membrane module 24. When the 95% liquid level switch 28 is operated, the suction pump 25 is prompted to be abnormal, and the system cannot normally operate. When the 80% liquid level switch 29 is operated, the suction pump 25 is controlled to be started, water is pumped into the advanced oxidation chamber 6, and the water is discharged after advanced treatment. When the liquid level of the biological contact chamber 5 is reduced to 70 percent of the liquid level switch 30, the suction pump 25 is controlled to stop working, and the biological contact chamber 5 does not drain water.
In this embodiment, a plurality of sets of the electrolyzing devices 26 and the power module, preferably 4 sets of the electrolyzing devices 26, are installed in the advanced oxidation chamber 6. Each group of electrolyzers 26 is composed of a plurality of titanium-based electrode plates arranged alternately. The thickness of the titanium-based polar plate is 2mm, and the distance between the polar plates is 5-10 mm. The size of the polar plate is 300 multiplied by 400mm, wherein the surface of the anode is plated with ruthenium iridium coating. Each group of electrolyzers 26 has a pair of positive and negative terminals connected in series with the power module. The power module is a 24V and 200A direct current power supply, and the current density of the electrode plate is controlled to be 200A/square meter when the power module is in normal operation.
The advanced oxidation step is to utilize strong oxidizing substances such as hydroxyl radicals, hypochlorite and the like generated by electrolysis of the electrolysis device 26 to decompose and oxidize pollutants completely without selectivity, the electrolysis device 26 has strong sewage treatment capacity, the water quantity can be treated on line daily by 600L when a train runs, the sewage treatment requirement in the running process of the train is completely met, and each index of effluent meets the secondary standard of GB18918 pollutant discharge Standard of urban Sewage treatment plant, and the effluent can be directly discharged to a rail without causing ecological pollution to the surrounding geological environment.
Except the biological culture chamber 4, the biological contact chamber 5 and the advanced oxidation chamber 6 are also provided with antifreezing emptying ports and are respectively provided with an antifreezing emptying valve 21, and the antifreezing emptying valve 13 and the antifreezing emptying valve 21 are controlled by a control system in a unified way. When the train needs to be overhauled or needs to be cleared away in an anti-freezing way due to other reasons, the control system respectively controls the anti-freezing clearing valves 13 and 21 at the bottoms of the biological culture chamber 4, the biological contact chamber 5 and the advanced oxidation chamber 6 to be opened, so that water in the equipment is cleared away for subsequent work.
The sewage treatment method of the sewage tank device specifically comprises the following steps:
A. sewage and filth at first flow into biological culture room 4, the solid is dammed the bottom at biological culture room 4 through the filtration of lower floor's filter screen 7, sewage passes through lower floor's filter screen 7 in proper order, the different filler 10 of three-layer particle diameter, upper filter screen 8, sewage after the filtration gets into biological contact chamber 5, cultivate the microbial film of constituteing by the high-efficient fungus of anaerobism in the filler 10 of biological culture room 4, sewage and anaerobism fully react, accomplish the process of hydrolysis acidification, utilize the anaerobism to decompose the organic substance who holds back on filler 10 surface simultaneously, realize self renewal and the purification of pollutant.
B. The sewage after primary filtration sequentially passes through an anoxic zone 15, an aerobic zone 16 and an ultrafiltration membrane group zone 17 in a biological contact chamber 5, pollutants sequentially pass through anaerobic and aerobic microorganism biodegradation treatment, sludge-water separation is realized through an MBR (membrane bioreactor) filter membrane component 24 in the ultrafiltration membrane group zone 17, clear water after being filtered by the MBR filter membrane component 24 is pumped into a high-grade oxidation chamber 6, the clear water after biodegradation pretreatment meets the primary standard of entering a high-grade oxidation step, and the biodegradation pretreatment is a basic condition for normal operation of a high-grade oxidation system.
When the liquid level of the biological contact chamber 5 reaches the high-level 80% liquid level switch 29, controlling the biological contact chamber 5 to drain to the high-level oxidation chamber 6, and when the liquid level of the biological contact chamber 5 is reduced to the low-level 70% liquid level switch 30, controlling the biological contact chamber 5 to stop draining; when the liquid level of the biological contact chamber 5 reaches the warning 95 percent liquid level switch 28, an alarm is given.
C. In the advanced oxidation chamber 6, direct current is applied to the electrode plates of the electrolysis device 26, and discharge between the electrode plates generates a large amount of strong oxidizing substances such as hydroxyl radicals and hypochlorite on the surface of the anode, so that the oxidizing substances and pollutants in water are subjected to oxidation reaction and mineralized into micromolecular inorganic substances, and simultaneously, the pollutants are decolored, sterilized and disinfected, and are not selectively and thoroughly oxidized and decomposed. The water after the biodegradation pretreatment is fully oxidized in the area, the residual pollutants in the water are fully degraded, and the treated water is finally discharged to a rail.
D. The water treated by the advanced oxidation chamber 6 is directly discharged to the rail outside the vehicle.
The device carries out pretreatment on collected wastewater in a biological pretreatment chamber through a series of on-line treatment processes, and under the combined influence of physical interception, hydrolysis acidification, aerobic degradation and the like, the main indexes in the wastewater are controlled to be below 1000mg/L, the content of ammonia nitrogen is below 600mg/L, SS is below 50mg/L, and the pH value is between 6 and 9, so that the treatment effect and efficiency of a rear-end advanced oxidation step are ensured. The device thoroughly decomposes and oxidizes pollutants by setting a high-grade oxidation step, and the device can ensure that the water treatment amount can reach 600L every day under the running state of the train according to 12 hours of running of the train every day, thereby meeting the sewage treatment requirement, and the treated water can meet the secondary standard in GB18918-2002 pollutant discharge Standard of urban Sewage treatment plant, directly discharge a track, can not pollute the surrounding environment, does not need to be stored in a sewage tank 1, or is stored by other equipment, the volume and the quantity of the equipment can be reduced, the original ground treatment system is saved, and the load of a rear-end treatment plant is lightened. The method realizes the online treatment of the sewage, greatly improves the sewage treatment capacity, does not have the situation that the toilet needs to be stopped due to the overflow of the sewage during the operation, solves the defects of low treatment capacity and poor treatment effect of the conventional treatment mode, realizes the periodic cleaning of solid matters, prolongs the station cleaning operation period, has the cleaning period of 7-15 days, and can be really applied to the train.
Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a vacuum sewage biodegradable filth case device for train, includes filth case and control system, its characterized in that: the sewage tank is internally provided with a biological pretreatment chamber and an advanced oxidation chamber which are communicated with each other, the biological pretreatment chamber is used for carrying out primary degradation on sewage and controlling the pollutant index within a primary standard range, and the advanced oxidation chamber is used for carrying out thorough oxidative decomposition on the pretreated pollutants in the water and controlling the pollutant index within an emission standard range to be directly discharged to a rail;
the biological pretreatment chamber is internally provided with a biological culture chamber and a biological contact chamber which are communicated in sequence;
the biological culture chamber is used for separating solid and liquid, the solid is intercepted in the biological culture chamber, the liquid flows into the biological contact chamber, an upper layer of filter screen and a lower layer of filter screen are arranged in the biological culture chamber, a filler is filled between the lower layer of filter screen and the upper layer of filter screen, and anaerobic efficient strains are attached to the filler;
the biological contact chamber is internally provided with an anoxic zone, an aerobic zone and an ultrafiltration membrane group zone which are sequentially communicated, biological fillers and aeration pipes are arranged in the anoxic zone and the aerobic zone, and treated water flows into the ultrafiltration membrane group zone; an MBR (membrane bioreactor) filter membrane assembly and a water collecting pipeline are arranged in the ultrafiltration membrane group chamber, and the treated clear water enters the advanced oxidation chamber;
and a plurality of groups of electrolysis devices and power modules are arranged in the advanced oxidation chamber, and each group of electrolysis devices is connected with the power modules in series.
2. The vacuum sewage biodegradation sewage tank device for the train of claim 1, which is characterized in that: the filler arranged in the biological culture chamber is ceramsite filler, and the ceramsite filler is divided into a plurality of layers from bottom to top according to different particle sizes from large to small.
3. The vacuum sewage biodegradation sewage tank device for the train of claim 2, which is characterized in that: the ceramsite filler is divided into three layers from bottom to top, and the particle size of each layer is 10mm, 5mm and 3 mm.
4. The vacuum sewage biodegradation sewage tank device for the train of claim 1, which is characterized in that: the biological filler arranged in the biological contact chamber is polyurethane biological filler, and a high-efficiency strain is added to culture a biological membrane.
5. The vacuum sewage biodegradation sewage tank device for the train of claim 4, which is characterized in that: the high-efficiency strain consists of domesticated nitrobacteria, denitrifying bacteria and bacillus.
6. The vacuum sewage biodegradation sewage tank device for the train of claim 1, which is characterized in that: the ultrafiltration membrane group area is provided with a high-level liquid level switch, a low-level liquid level switch and a warning liquid level switch, the liquid level in the ultrafiltration membrane group area is controlled to drain when reaching the high-level liquid level switch, the liquid level in the ultrafiltration membrane group area is controlled to stop draining when reaching the low-level liquid level switch, and a warning prompt is given when reaching the warning liquid level switch.
7. The vacuum sewage biodegradation sewage tank device for the train of claim 1, which is characterized in that: and a negative pressure meter for detecting the internal and external pressure difference of the MBR filter membrane component is arranged on the water collecting pipeline and is connected with a pressure difference alarm device.
8. The vacuum sewage biodegradation sewage tank device for the train of claim 1, which is characterized in that: the electrolysis device is composed of a plurality of titanium-based electrode plates which are alternately arranged.
9. The vacuum sewage biodegradation sewage tank device for the train of claim 1, which is characterized in that: the sewage tank is provided with a high-pressure flushing valve for flushing the sewage tank, a flushing drain valve and a dosing cleaning valve for dosing the sewage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920031119.3U CN209815898U (en) | 2019-01-09 | 2019-01-09 | Vacuum sewage biodegradation sewage tank device for train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920031119.3U CN209815898U (en) | 2019-01-09 | 2019-01-09 | Vacuum sewage biodegradation sewage tank device for train |
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| CN209815898U true CN209815898U (en) | 2019-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650658A (en) * | 2019-01-09 | 2019-04-19 | 青岛亚通达铁路设备有限公司 | A kind of train vacuum sewage biodegrade dirt case apparatus and sewage water treatment method |
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2019
- 2019-01-09 CN CN201920031119.3U patent/CN209815898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650658A (en) * | 2019-01-09 | 2019-04-19 | 青岛亚通达铁路设备有限公司 | A kind of train vacuum sewage biodegrade dirt case apparatus and sewage water treatment method |
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