CN113429085B - Sewage treatment system for pull arm vehicle-mounted mobile toilet and water recycling method - Google Patents

Abstract

The invention discloses a sewage treatment system and a water recycling method for a pull arm vehicle-mounted mobile toilet, wherein the sewage treatment system sequentially comprises a pull arm vehicle-mounted mobile toilet sewage storage pool, an anaerobic storage degradation pool, a sewage filtering area, a microbial degradation pool, an ozone disinfection and sterilization pool and a purified water storage tank; according to the sewage treatment system configured for the draw arm vehicle-mounted mobile toilet, the degradation and treatment of sewage can be realized through the degradation of microorganisms and an ozone sterilization technology, and the sludge generated at the bottom of the anaerobic storage degradation tank and the microbial degradation tank can be removed in the degradation process through the arrangement of the bottom sludge removing mechanism, so that the characteristics of excrement accumulation and sewage discharge difficulty are avoided, the treated purified water is fully recycled, precious water resources are saved, the environmental protection concept is fully revealed, and the sewage treatment system is favorable for being popularized and used in the draw arm vehicle-mounted mobile toilet.

Description

Sewage treatment system and water recycling method for pull-arm vehicle-mounted mobile toilet

technical field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system and a water recycling method for a pull-arm vehicle-mounted mobile toilet.

Background technique

The mobile toilet is named because of its mobility. It is opposite to the traditional fixed toilet. Compared with the traditional toilet, the advantages are very obvious. With the acceleration of my country's economic construction process and the increase of civilization, the application of mobile toilets is becoming more and more extensive. Due to factors such as dispersion and independence of mobile toilets, it is difficult to discharge waste water into the municipal pipe network. If the sewage from toilets is not treated and discharged directly, it will have a bad impact on the surrounding environment. The sewage problem of mobile toilets has always been limited. With the development of mobile toilets.

Anaerobic biological treatment is currently used. Anaerobic biological treatment is a process in which a variety of microorganisms work together under anaerobic conditions to decompose organic matter in sewage or sludge and generate final products such as methane and carbon dioxide. Under non-aerobic conditions, anaerobic bacteria and facultative (aerobic and anaerobic) bacteria degrade organic pollutants, also known as anaerobic digestion or fermentation, and the decomposed products are mainly biogas and a small amount of sludge, as well as macromolecular organic matter ; The current mobile toilet sewage treatment system does not involve the treatment of these substances, sludge, sundries, macromolecular organic matter, and harmful substances in the water body, if not treated, there will be the following effects: 1. Water intake for mobile toilets 2. Causes problems such as blockage of sewer pipes and circulating water pipes; 3. It is not environmentally friendly, and it is easy to pollute the environment around the mobile toilet; 4. The water quality of the circulating water source is difficult to meet the standard, and there are many harmful substances. promotion use.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to overcome the defects of the prior art mobile toilet, such as the difficulty in treating and recycling the sewage and sludge, poor conversion effect and poor environmental protection effect, etc. Toilet sewage treatment system and water recycling method. The sewage treatment system and the water recycling method for the pull-arm vehicle-mounted mobile toilet enable the sewage and sludge produced by the mobile toilet to be treated in an environmentally friendly manner, and have the characteristics of energy saving, good recycling and treatment effect, and the like.

In order to achieve the above purpose, the present invention provides the following technical solutions: a sewage treatment system and a water recycling method for a pull-arm vehicle-mounted mobile toilet, including a pull-arm vehicle-mounted mobile toilet, and a sewage treatment system is provided in the pull-arm vehicle-mounted mobile toilet. The sewage treatment system sequentially includes a sewage storage tank for a pull-arm vehicle-mounted mobile toilet, an anaerobic storage degradation tank, a sewage filtration area, a microbial degradation tank, an ozone disinfection tank and a water purification tank; the vehicle-mounted mobile toilet sewage storage tank , anaerobic storage degradation tank, sewage filtration area, microbial degradation tank, ozone disinfection and sterilization tank and water purification storage tank are connected in sequence;

The sewage storage tank of the pull-arm vehicle-mounted mobile toilet is used to receive and store the sewage generated during the operation of the pull-arm vehicle-mounted mobile toilet. The filtration area is used for solid-liquid separation treatment of sewage, the microbial degradation tank can add aerobic bacteria for the degradation of aerobic bacteria of sewage, and the ozone disinfection tank uses an external ozone generator and a conduit to input ozone into the tank and sewage. After mixing, ozone disinfection treatment of degraded sewage is performed, the purified water storage tank stores purified purified water, and the bottom of the microbial degradation tank is provided with a sediment removal mechanism.

Preferably, the sediment removal mechanism includes a sediment collection bin and a sediment treatment bin installed at the bottom of the microbial degradation tank;

The bottom mud collection bin is arranged above the bottom mud treatment bin, the top of the bottom mud collection bin and the bottom of the microbial degradation tank are in a through-type arrangement, and a centrifugal pump is installed in the bottom mud collection bin. And the inner cavity of the bottom mud collection bin is provided with a pressure plate, the pressure plate is arranged in an inclined shape, and the end of the pressure plate is movably connected to the bottom mud collection bin through a pin shaft, and a counterweight is fixedly installed on the end surface of the pressure plate away from the pin shaft. A steel wire is installed on the pressing plate, and at least two guide wheels for winding the steel wire are fixedly installed on the top of the bottom mud collection bin;

A through hole with a trapezoidal cross-section is provided below the bottom mud collection bin in a horizontally bisected shape, and the bottom mud collection bin is connected to the bottom mud treatment bin through the through hole;

The bottom mud treatment silo is arranged in a horizontal cylindrical shape, and the bottom mud treatment silo is equipped with a spiral blade that matches the inner cavity of the silo, and the sludge discharge end of the bottom mud treatment silo is connected to the upper and lower oppositely installed communication pipes. The end of the communication pipe is connected to the sludge thickening tank;

The lower part of the inner cavity of the sludge thickening tank is provided with a combustion chamber, and the combustion gas pipeline of the combustion chamber is connected to the external heating combustion gas. Through the setting of the sediment removal mechanism, the disadvantage that the sludge generated at the bottom of the anaerobic storage degradation tank and the microbial degradation tank is difficult to remove during the degradation process can be realized, and the sediment can be discharged from the anaerobic storage degradation tank conveniently and quickly. The microbial degradation tank is beneficial to the subsequent degradation operations, and the discharged sediment can be concentrated and dried in the sludge concentration tank for use in organic fertilizers.

Preferably, the sewage filter area includes a sewage filter tank and a solid-liquid separation tank, a filter cartridge water inlet pipe is arranged between the sewage filter tank and the solid-liquid separation tank, and the level of the sewage filter tank is higher than that in the vehicle-mounted mobile toilet. The solid-liquid separation tank is arranged, the water inlet end of the filter cartridge water inlet pipe is connected to the bottom inner cavity of the sewage filter tank, and the water outlet end of the filter cartridge water inlet pipe is connected to the filter cartridge in the solid-liquid separation tank, and the solid-liquid separation tank A negative pressure pump is also installed in the inner cavity of the filter cartridge, and the negative pressure pump is arranged outside the filter cartridge;

The sewage filter tank is provided with a guide plate and a pull-type filter grid, and the guide plate is arranged in a downwardly inclined shape above the pull-type filter grid and installed under the water inlet of the sewage filter tank. The bottom wall of the pull-type filter grid is provided with filter holes with a diameter of less than 5mm in an array shape, and the side wall of the pull-type filter grid is sealed and connected to the sewage filter tank;

The filter cartridge is mainly composed of a cylindrical first filter cartridge and an inverted bucket-shaped second filter cartridge. The first filter cartridge is installed above the second filter cartridge, and the water outlet of the filter cartridge inlet pipe The end extends into the first filter cartridge, and the mesh number of the first filter cartridge and the inverted bucket-shaped second filter screen cartridge is set to 2-5 meshes. Through the setting of the sewage filter area, the separation operation of sewage and sewage can be realized for the sewage after anaerobic degradation, which is beneficial to the further degradation and sterilization of the subsequent microbial degradation tank and ozone disinfection and sterilization tank.

Preferably, the bottom level of the microbial degradation pool in the pull-arm vehicle-mounted mobile toilet is lower than the anaerobic storage degradation pool, and the height difference between the microbial degradation pool and the anaerobic storage degradation pool is not less than 30CM. By setting the height difference between the microbial degradation tank and the anaerobic storage degradation tank, it is beneficial to the sediment transportation work of the sediment removal mechanism. Preferably, a sliding block for pulling and sliding is fixedly installed on the side wall of the pull-out filter grid, and the end of the pull-out filter grid is integrally formed with a protrusion that is clamped on the inner wall of the sewage filter tank. A pull rod is fixedly installed on the outer wall of one side of the pull-out filter grid away from the bump, and the side wall and top surface of the pull-out filter grid are connected with the sewage filter tank with a seal. A gasket is installed in the gasket installation groove, and a gasket is installed in the gasket installation groove. Through the installation of the pull-out filter grid, the manual removal operation of pulling and pulling the sundries under the filter can be realized.

Preferably, a solid discharge pipe is installed at the bottom of the second filter screen cylinder, the end of the solid discharge pipe extends out of the vehicle-mounted mobile toilet, and a valve body is installed on the outer wall of the solid discharge pipe. Through the installation of the solid discharge pipe and the valve body, the operation of removing the dirt in the filter cartridge can be realized.

Preferably, the sediment removal mechanism is set as a centrifugal pump, the anaerobic storage degradation tank and the bottom of the microbial degradation tank are connected through a pipeline, and the centrifugal pump is installed on the bottom side of the microbial degradation tank wall discharge end. By setting the sediment removal mechanism as a centrifugal pump, and the horizontal setting of the anaerobic storage degradation tank and the microbial degradation tank, the sediment can be directly sucked through negative pressure and repelled from the tank, which is more efficient.

Preferably, the bottoms of the anaerobic storage degradation tank and the microbial degradation tank are set at the same level. The structure height is set reasonably.

Preferably, solenoid valves are installed on the connecting pipes between the mobile toilet sewage storage tank, anaerobic storage degradation tank, sewage filtering area, microbial degradation tank, ozone disinfection and sterilization tank and water purification storage tank. Through the installation of solenoid valve, it is convenient to control the whole system of sewage treatment of this mobile toilet.

Preferably, it also includes the following methods of using steps:

S101. Sewage inflow, the sewage storage tank of the pull-arm vehicle-mounted mobile toilet is used to receive the sewage generated when the pull-arm vehicle-mounted mobile toilet works, and is discharged into the anaerobic storage degradation tank through the control of the pump body and the solenoid valve;

S102. Anaerobic degradation treatment, anaerobic bacteria can be added to the anaerobic storage degradation tank for anaerobic bacterial degradation of sewage, the degradation time is 12-48h, and the degraded sewage can be transferred to the sewage filtration area through;

S103. Sewage filtration treatment; first, the sewage is discharged into the sewage filter tank. The filter holes of the pull-type filter grid in the sewage filter tank can intercept and remove large suspended particles with a diameter greater than 5mm, and the sewage is filtered through the sewage filter tank to Among the filter cartridges in the solid-liquid separation tank, the first filter cartridge and the inverted bucket-shaped second filter cartridge can realize a one-step separation operation for sewage,

At the same time, the pull-out filter grid can be pulled out in the mobile toilet to remove the filtered dirt, and the valve body on the solid discharge pipe under the filter cartridge can be opened to discharge the fine dirt in the filter cartridge. ;

S104. Sewage microbial degradation, aerobic bacteria can be added to the microbial degradation tank for aerobic bacteria degradation of sewage, the degradation time is 12-48h, and the degraded sewage can be transferred to the ozone disinfection and sterilization tank;

S105. Ozone sterilization, the ozone sterilization tank can accept the ozone gas emitted by the external ozone generator, and the ozone is input into the ozone sterilization tank through the catheter to be mixed with the sewage, and the ozone disinfection treatment of the degraded sewage is carried out;

S106. Storage and recycling of purified water, the electrolyzed water can be discharged into the purified water storage tank through the pipeline, and the purified water after sewage treatment can be stored or recycled;

S107. Sludge removal treatment; the centrifugal pump in the sediment removal mechanism can be turned on to remove the sludge produced in the degradation process of the anaerobic storage degradation tank and the microbial degradation tank, and discharge it into the vehicle-mounted mobile toilet. The overall operation steps are simple and convenient, and the sewage treatment cycle is reliable, which avoids the accumulation of feces and the intractable discharge of sewage.

Compared with the prior art, the beneficial effects of the present invention are as follows: the sewage treatment system configured with the pull-arm vehicle-mounted mobile toilet of the present invention can realize the degradation and treatment of sewage through the microbial degradation and ozone sterilization technology, and remove the sediment through the sludge. The setting of the mechanism can realize the removal of the sludge generated at the bottom of the anaerobic storage degradation tank and the microbial degradation tank during the degradation process, avoiding environmental pollution and clogging of the pipeline, and improving the subsequent degradation effect. The setting can realize the separation operation of sewage and dirt on the degraded sewage, which is beneficial to the further degradation and sterilization operations of the subsequent microbial degradation tank and ozone disinfection and sterilization tank. It makes the sewage treatment cycle reliable, avoids the accumulation of feces and the difficult discharge of sewage, makes the treated purified water fully recycled, saves precious water resources, and fully demonstrates the concept of environmental protection, which is conducive to the use of the pull arm. Promote the use of vehicle-mounted mobile toilets.

Description of drawings

Fig. 1 is the schematic diagram of the sewage treatment system of the pull-arm vehicle-mounted mobile toilet of the present invention;

Fig. 2 is the flow chart of the use method of the sewage treatment system of the pull-arm vehicle-mounted mobile toilet of the present invention;

3 is a schematic structural diagram of the sewage treatment system of the pull-arm vehicle-mounted mobile toilet of the present invention;

4 is a schematic structural diagram of Embodiment 1 of the bottom mud removal mechanism in the pull-arm vehicle-mounted mobile toilet of the present invention;

Fig. 5 is the structural representation of the sewage filtration zone of the present invention;

6 is a schematic structural diagram of the pull-out filter grid described in the sewage filtration zone of the present invention;

7 is a schematic structural diagram of the solid-liquid separation tank folding the filter cartridge according to the present invention;

8 is a schematic structural diagram of Embodiment 2 of the bottom mud removal mechanism in the pull-arm vehicle-mounted mobile toilet of the present invention.

Labels in the figure: 1. Sewage storage tank for pull-arm vehicle-mounted mobile toilet; 2. Anaerobic storage and degradation tank; 3. Sewage filtration area; 31. Sewage filtration tank; 32. Solid-liquid separation tank; Pull-out filter grid; 3121, slider; 3122, gasket installation groove; 3123, tie rod; 3124, filter hole; 3125, bump; 321, filter cartridge; 3211, first filter cartridge; 3212, second filter Mesh cylinder; 3213, solid discharge pipe; 3214, valve body; 3215, filter cartridge inlet pipe; 322, negative pressure pump; 4, microbial degradation tank; 5, ozone disinfection tank; 6, water purification tank; 7, bottom Mud removal mechanism; 71, bottom mud collection bin; 72, bottom mud treatment bin; 721, spiral blade; 73, connecting pipe; 74, through hole; 711, centrifugal pump; 712, pressure plate; 713, steel wire; 714 , guide wheel; 715, counterweight; 75, sludge thickening tank; 76, combustion chamber.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

Embodiment 1: Please refer to Figures 1-7, the present invention provides a technical solution: including a pull-arm vehicle-mounted mobile toilet, a sewage treatment system is arranged in the pull-arm vehicle-mounted mobile toilet, and the sewage treatment system sequentially includes the sewage storage of the pull-arm vehicle-mounted mobile toilet Pool 1, anaerobic storage degradation pool 2, sewage filtration area 3, microbial degradation pool 4, ozone disinfection and sterilization pool 5 and water purification storage tank 6; vehicle mobile toilet sewage storage pool 1, anaerobic storage degradation pool 2, sewage filtration area 3. The microbial degradation tank 4, the ozone disinfection and sterilization tank 5 and the clean water storage tank 6 are connected and set in sequence; the sewage storage tank 1 of the pull-arm vehicle-mounted mobile toilet is used to receive and store the sewage generated during the operation of the pull-arm vehicle-mounted mobile toilet, and anaerobic storage Degradation tank 2 can add anaerobic bacteria for anaerobic bacteria degradation of sewage, sewage filtration zone 3 is used for solid-liquid separation treatment of sewage, and the amount of sludge produced by the aerobic biological treatment system per 1kg of COD is 250~600g, The anaerobic biological treatment system produces 20~180g of sludge per 1kg of COD. The microbial degradation tank 4 can add aerobic bacteria to degrade the aerobic bacteria of the sewage. The ozone disinfection and sterilization tank 5 uses an external ozone generator and a conduit to input ozone into the tank and mix it with the sewage to carry out the ozone disinfection treatment of the degraded sewage. The water storage tank 6 stores purified water, and the bottom of the microbial degradation tank 4 is provided with a sediment removal mechanism 7. The system sequentially includes a sewage storage tank 1 for a pull-arm vehicle-mounted mobile toilet, an anaerobic storage degradation tank 2, and a sewage filter. Zone 3, sewage microbial aerobic bacteria degradation zone 4, ozone disinfection and sterilization tank 5, clean water storage tank 6, the water source after sewage treatment is stored in the clean water storage tank 6 for flushing the circulating toilet of the pull-arm vehicle-mounted mobile toilet.

The sewage treatment system equipped with the pull-arm vehicle-mounted mobile toilet of the present invention can degrade the sewage generated by the mobile toilet through the degradation of anaerobic microorganisms, the filtration of sewage, the degradation of aerobic microorganisms, and the ozone sterilization technology. The water source is recycled, which solves the problem of difficult water use in mobile toilets. It is easy to pollute the surrounding environment of mobile toilets if it is not environmentally friendly, and the water quality of circulating water sources is difficult to meet the standard and there are many harmful substances, so that the mobile toilets can be used on a large scale. .

Further, solenoid valves are installed on the connecting pipes between the mobile toilet sewage storage tank 1, the anaerobic storage degradation tank 2, the sewage filter area 3, the microbial degradation tank 4, the ozone disinfection and sterilization tank 5 and the clean water storage tank 6, Through the installation of solenoid valve, it is convenient to control the whole system of sewage treatment of this mobile toilet.

Specifically, the bottom mud removal mechanism 7 includes a bottom mud collection bin 71 and a bottom mud treatment bin 72 installed at the bottom of the microbial degradation tank 4; the bottom mud collection bin 71 is arranged above the bottom mud treatment bin 72, and the bottom mud collection bin 71 Between the top of the silo and the bottom of the microbial degradation tank 4 is a through-type arrangement, a centrifugal pump 711 is installed in the bottom mud collection bin 71, and a pressure plate 712 is arranged in the inner cavity of the bottom mud collection bin 71, and the pressure plate 712 is inclined. The bottom part is set and connected to the bottom mud collecting bin 71 through the pin shaft. The end face of the pressure plate 712 away from the pin shaft is fixedly installed with a counterweight block 715. The pressure plate 712 can pass the counterweight block 715 so that the bottom mud can easily enter the bottom mud through the through hole 74. In the processing bin 72, a steel wire 713 is installed on the pressing plate 712, the steel wire 713 can be driven by a driving motor, and at least two steel supply wires 713 are fixedly installed on the top of the bottom mud collecting bin 71 to wrap around a guide wheel 714; the bottom mud collecting bin A through hole 74 with a trapezoidal cross-section is opened below the 71 in a horizontally bisected shape, and the bottom mud collection bin 71 is connected to the bottom mud treatment bin 72 through the through hole 74; the bottom mud treatment bin 72 is arranged in a horizontal cylindrical shape, and The bottom sludge treatment bin 72 is equipped with a helical blade 721 that matches the inner cavity of the bin. The screw blade 721 rotates in the bottom sludge treatment bin 72 to compress and transport the bottom sludge, and the sludge discharge end of the bottom sludge treatment bin 72 Connect the communication pipe 73 installed up and down oppositely, the end of the communication pipe 56 is connected to the sludge thickening tank 75, and the bottom sludge can pass through the communication pipe 73 to the sludge thickening tank 75; Chamber 76, the combustion gas pipeline of the combustion chamber 76 is connected to the external heating combustion gas, and through the setting of the sediment removal mechanism 7, it can be realized that the anaerobic storage degradation tank 2 and the microbial degradation tank 4 are degraded during the degradation process. The disadvantage that the generated sludge is difficult to remove can easily and quickly discharge the sediment to the anaerobic storage degradation tank 2 and the microbial degradation tank 4, which is beneficial to the subsequent degradation operation, and the discharged sediment can be concentrated and dried in the sludge concentration tank 75. dry, for organic fertilizers.

Further, the bottom level of the microbial degradation tank 4 in the pull-arm vehicle-mounted mobile toilet is lower than that of the anaerobic storage degradation tank 2, and the height difference between the microbial degradation tank 4 and the anaerobic storage degradation tank 2 is not less than 30CM. The height difference between the microbial degradation tank 4 and the anaerobic storage degradation tank 3 is set, which is beneficial to the sediment transportation work of the sediment removal mechanism 7 .

Specifically, the sewage filter area 3 includes a sewage filter tank 31 and a solid-liquid separation tank 32, a filter cartridge water inlet pipe 3215 is arranged between the sewage filter tank 31 and the solid-liquid separation tank 32, and the level of the sewage filter tank 31 moves on the vehicle The toilet is set higher than the solid-liquid separation tank 32, the water inlet end of the filter cartridge water inlet pipe 3215 is connected to the bottom inner cavity of the sewage filter tank 31, and the water outlet end of the filter cartridge water inlet pipe 3215 is connected to the filter in the solid-liquid separation tank 32. A negative pressure pump 322 is also installed in the inner cavity of the solid-liquid separation tank 32, and the negative pressure pump 322 is arranged outside the filter cartridge 321; the sewage filter tank 31 is provided with a guide plate 311 and a pull-type filter screen Grid 312, the deflector 311 is disposed above the pull-type filter grid 312 in a downwardly inclined shape and is installed below the inlet of the sewage filter tank 31. The bottom wall of the pull-type filter grid 312 is in an array shape. A filter hole 3124 with a diameter of less than 5mm is provided, and the side wall of the pull-type filter grid 312 is sealed and connected with the sewage filter tank 31; It consists of two filter cartridges 3212, the first filter cartridge 3211 is installed above the second filter cartridge 3212, the water outlet end of the filter cartridge water inlet pipe 3215 extends into the first filter cartridge 3211, the first filter cartridge 3211 and the inverted bucket-shaped The mesh number of the second filter screen cylinder 3212 is set to 2-5 meshes. Through the setting of the sewage filter area 3, the separation operation of sewage and sewage can be realized on the sewage after anaerobic degradation, which is beneficial to the subsequent microbial degradation tank 4 and ozone. Further degradation and sterilization operations of the disinfection and sterilization tank 5.

Further, a slider 3121 for pulling and sliding is fixedly installed on the side wall of the pull-out filter grid 312, and the end of the pull-out filter grid 312 is integrally formed with a bump 3125 that is clamped on the inner wall of the sewage filter tank 31. , and a pull rod 3123 is fixedly installed on the outer wall of one side of the pull-out filter grid 312 away from the bump 3125, the side wall and the top surface of the pull-out filter grid 312 are connected with the sewage filter tank 31. Pad installation groove 3122, a gasket is installed in the gasket installation groove 3122, and through the installation of the pull-out filter mesh 312, the manual removal operation of the filtered debris can be realized; at the same time, the second filter mesh cylinder 3212 The bottom of the solid discharge pipe 3213 is installed with a solid discharge pipe 3213, the end of the solid discharge pipe 3213 extends out of the vehicle-mounted mobile toilet, and a valve body 3214 is installed on the outer wall of the solid discharge pipe 3213. Contamination removal operation in the barrel.

Specifically, the sewage treatment system of the mobile toilet with the pull arm of the present invention is used in a circular manner, and also includes the following steps of use: first, the water is fed into the water, and the sewage storage pool 1 of the mobile toilet with the pull arm is used to receive and store the mobile toilet when the pull arm is in operation. The generated sewage is discharged into the anaerobic storage degradation tank 2 through the control of the pump body and the solenoid valve; for anaerobic degradation treatment, anaerobic bacteria can be added to the anaerobic storage degradation tank 2 for anaerobic bacterial degradation of sewage , the degradation time is 12-48h, and the degraded sewage can be transferred to the sewage filter area 3; then the sewage filtration treatment is performed; first, the sewage is discharged into the sewage filter tank 31, and the pull-type filter grid 312 in the sewage filter tank 31 The filter holes 3124 can intercept and remove large suspended particles with a diameter greater than 5mm, and the sewage is filtered through the sewage filter tank 31 into the filter cartridge 321 in the solid-liquid separation tank 32. The first filter cartridge 3211 and the inverted bucket-shaped second filter The filter cartridge 3212 can realize a one-step separation operation for sewage, and the pull-type filter grid 312 can be pulled out in the mobile toilet to remove the filtered dirt, and the solid under the filter cartridge 321 can be opened to discharge The valve body 3214 on the pipe 3213 is used to discharge the fine dirt in the filter cartridge 321; then the sewage is degraded by microorganisms, and aerobic bacteria can be added in the microbial degradation tank 4 for the degradation of the aerobic bacteria of the sewage, and the degradation time is 12- 48h, the degraded sewage can be transmitted to the ozone disinfection and sterilization tank 5; and the ozone disinfection and disinfection is carried out, the ozone disinfection and disinfection tank 5 can accept the ozone gas emitted by the external ozone generator, and the ozone is input into the ozone disinfection and disinfection tank 5 through the catheter Mixed with sewage, ozone has a good bactericidal effect, and ozone has a good oxidizing ability to remove harmful substances in water, such as sulfur ions, nitrogen ions, etc. Carry out ozone disinfection treatment of the degraded sewage; finally carry out the storage and circulation treatment of purified water, the water after ozone sterilization can be discharged into the purified water storage tank 7 through the pipeline, and the purified water after sewage treatment is stored or recycled; Transporting the vehicle-mounted mobile toilet to a place away from the crowd can also remove sludge; the centrifugal pump 711 in the bottom sludge removal mechanism 7 can be turned on. Referring to Figure 4, the pump 711 can store the anaerobic storage degradation tank 2, sewage The bottom sludge generated by the degradation of the microbial aerobic bacteria degradation zone 4 is sucked into the bottom sludge collection bin 71. The steel wire 713 can drive the pressure plate 712 to rotate. The pressure plate 712 is kept inclined under normal conditions. When the sludge needs to be squeezed, the pressure plate 712 Through the counterweight 715, it is convenient for the bottom mud to enter the bottom mud treatment bin 72 through the through hole 74, and at the same time, the spiral blade 721 in the bottom mud treatment bin 72 can compress and transport the bottom mud while it is rotating, and discharge it to the sewage. In the sludge concentration tank 75, the sludge concentration tank 75 can be concentrated and dried by the setting of the combustion chamber 76, and then the sludge generated during the degradation process of the anaerobic storage degradation tank 2 and the microbial degradation tank 4 can be removed, To discharge the vehicle-mounted mobile toilet, the overall operation steps are simple and convenient, and the sewage treatment cycle is reliable, which avoids the accumulation of feces and the intractable discharge of sewage.

Example 2: Please refer to FIG. 8 , the sewage storage tank 1, the anaerobic storage degradation tank 2, the sewage filtration area 3, the microbial degradation tank 4, the ozone disinfection tank 5 and the clean water storage tank 6 and the embodiment 1 The same setting, the difference is that the sediment removal mechanism 7 is set as a centrifugal pump 711, the bottom of the anaerobic storage degradation tank 2 and the bottom of the microbial degradation tank 4 are connected through a pipeline, and the centrifugal pump 711 is installed in the microbial degradation tank. At the discharge end of the bottom side wall of 4, the bottoms of the anaerobic storage degradation tank 2 and the microbial degradation tank 4 are set at the same level, and the structural height is set reasonably. The horizontal setting of the degradation tank and the microbial degradation tank can directly suck the bottom sludge through negative pressure and discharge it out of the tank. Compared with Example 1, although Example 1 removes the bottom sludge more efficiently, it directly discharges the bottom sludge generated by the degradation. Outdoors, it is not environmentally friendly, and it is easy to pollute the environment around the mobile toilet. In Example 1, the generated bottom sludge can be discharged into the sludge thickening tank 75, and the discharged bottom sludge can be concentrated and dried in the sludge thickening tank 75. For organic fertilizers, it protects the environment and is conducive to sustainable development.

The sewage treatment system equipped with the pull-arm vehicle-mounted mobile toilet of the present invention can realize the degradation and treatment of sewage through the microbial degradation and ozone sterilization technology, and through the setting of the sediment removal mechanism, can realize the anaerobic storage degradation tank and microorganisms. During the degradation process of the degradation tank, the sludge generated at the bottom of the tank is removed, which avoids polluting the environment and clogging the pipeline, and improves the subsequent degradation effect. The separation operation is conducive to the further degradation and sterilization operations of the subsequent microbial degradation tank and ozone disinfection and sterilization tank. It makes the sewage treatment cycle reliable, avoids the accumulation of feces and the difficult discharge of sewage, makes the treated purified water fully recycled, saves precious water resources, and fully demonstrates the concept of environmental protection, which is conducive to the use of the pull arm. Promote the use of vehicle-mounted mobile toilets.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a sewage treatment system that is used for on-vehicle removal lavatory of single arm-drag which characterized in that: the sewage treatment system comprises a draw arm vehicle-mounted mobile toilet, and the draw arm vehicle-mounted mobile toilet is internally provided with a sewage treatment system which sequentially comprises a draw arm vehicle-mounted mobile toilet sewage storage tank (1), an anaerobic storage degradation tank (2), a sewage filtering area (3), a microbial degradation tank (4), an ozone disinfection and sterilization tank (5) and a purified water storage tank (6); the sewage storage pool (1), the anaerobic storage degradation pool (2), the sewage filtering area (3), the microbial degradation pool (4), the ozone sterilization and disinfection pool (5) and the purified water storage tank (6) of the pull arm vehicle-mounted mobile toilet are sequentially communicated;

the sewage storage tank (1) of the pull arm vehicle-mounted mobile toilet is used for receiving and storing sewage generated by the pull arm vehicle-mounted mobile toilet during working, anaerobic bacteria can be added into the anaerobic storage degradation tank (2) for anaerobic bacteria degradation of the sewage, the sewage filtering area (3) is used for solid-liquid separation treatment of the sewage, aerobic bacteria can be added into the microbial degradation tank (4) for aerobic bacteria degradation of the sewage, the ozone disinfection and sterilization tank (5) is used for mixing ozone with the sewage in an input tank through an external ozone generator and a conduit to perform ozone disinfection treatment on the degraded sewage, the purified water storage tank (6) stores purified water, and the bottom of the microbial degradation tank (4) is provided with a bottom mud removing mechanism (7);

the bottom sludge removing mechanism (7) comprises a bottom sludge collecting bin (71) and a bottom sludge treating bin (72) which are arranged at the bottom of the microbial degradation pool (4); the bottom mud collecting bin (71) is arranged above the bottom mud treating bin (72), a through type arrangement is arranged between the top of the bottom mud collecting bin (71) and the bottom of the microbial degradation pool (4), a centrifugal extraction pump (711) is installed in the bottom mud collecting bin (71), a pressing plate (712) is arranged in an inner cavity of the bottom mud collecting bin (71), the pressing plate (712) is obliquely arranged, the end part of the pressing plate (712) is movably connected with the bottom mud collecting bin (71) through a pin shaft, a balancing weight (715) is fixedly installed on the end face, far away from the pin shaft, of the pressing plate (712), a steel wire (713) is installed on the pressing plate (712), and at least two steel supply wires (713) and a winding guide wheel (714) are fixedly installed at the top of the bottom mud collecting bin (71); through holes (74) with trapezoidal sections are transversely and equally distributed below the bottom mud collecting bin (71), and the bottom mud collecting bin (71) is communicated with the bottom mud processing bin (72) through the through holes (74); the bottom sludge treatment bin (72) is arranged in a transverse cylindrical shape, a helical blade (721) matched with the inner cavity of the bin body is installed in the bottom sludge treatment bin (72), the sludge discharge end of the bottom sludge treatment bin (72) is communicated with a communicating pipe (73) which is installed oppositely up and down, and the tail end of the communicating pipe (73) is communicated with a sludge concentration tank (75); a combustion chamber (76) is arranged at the lower part of the inner cavity of the sludge concentration tank (75), and a combustion gas pipeline of the combustion chamber (76) is communicated with external heat supply combustion gas;

the sewage filtering area (3) comprises a sewage filtering tank (31) and a solid-liquid separation tank (32), a filter cartridge water inlet pipe (3215) is arranged between the sewage filtering tank (31) and the solid-liquid separation tank (32), the horizontal height of the sewage filtering tank (31) is higher than that of the solid-liquid separation tank (32) in the vehicle-mounted mobile toilet, the water inlet end of the filter cartridge water inlet pipe (3215) is communicated with the inner cavity at the bottom of the sewage filtering tank (31), the water outlet end of the filter cartridge water inlet pipe (3215) is communicated with a filter cartridge (321) in the solid-liquid separation tank (32), a negative pressure pump (322) is further installed in the inner cavity of the solid-liquid separation tank (32), and the negative pressure pump (322) is arranged outside the filter cartridge (321); a guide plate (311) and a pull-out type filtering grid (312) are arranged in the sewage filtering tank (31), the guide plate (311) is arranged above the pull-out type filtering grid (312) in a downward inclined manner and is arranged below the water inlet of the sewage filtering tank (31), filtering holes (3124) with the diameter of less than 5mm are formed in the bottom wall of the pull-out type filtering grid (312) in an array manner, and the side wall of the pull-out type filtering grid (312) is in sealing connection with the sewage filtering tank (31); the filter cylinder (321) mainly comprises a first cylindrical filter cylinder (3211) and a second filter screen cylinder (3212), the first filter cylinder (3211) is mounted above the second filter screen cylinder (3212), the water outlet end of the filter cylinder water inlet pipe (3215) extends into the first filter cylinder (3211), and the mesh number of the first filter cylinder (3211) and the second filter screen cylinder (3212) is 2-5 meshes; a sliding block (3121) for sliding in a drawing manner is fixedly mounted on the side wall of the drawing type filtering grid (312), a convex block (3125) clamped on the inner wall of the sewage filtering tank (31) is integrally formed at the tail end of the drawing type filtering grid (312), a pull rod (3123) is fixedly mounted on the outer wall of one side of the drawing type filtering grid (312) far away from the convex block (3125), a sealing gasket mounting groove (3122) is formed at the joint of the side wall and the top surface of the drawing type filtering grid (312) and the sewage filtering tank (31), and a sealing gasket is mounted in the sealing gasket mounting groove (3122); a solid discharge pipe (3213) is installed at the bottom of the second filter screen cylinder (3212), the tail end of the solid discharge pipe (3213) extends out of the vehicle-mounted mobile toilet, and a valve body (3214) is installed on the outer wall of the solid discharge pipe (3213).

2. The sewage treatment system for the pull arm on-board portable lavatory according to claim 1, wherein: the bottom horizontal height of the microbial degradation tank (4) in the pull arm vehicle-mounted mobile toilet is lower than that of the anaerobic storage degradation tank (2), and the height difference between the microbial degradation tank (4) and the anaerobic storage degradation tank (2) is not less than 30 CM.

3. The sewage treatment system for the pull arm on-board portable lavatory according to claim 1, wherein: the bottom sludge removing mechanism (7) is set to be a centrifugal extraction pump (711), the bottoms of the anaerobic storage degradation tank (2) and the microbial degradation tank (4) are communicated through a pipeline, and the centrifugal extraction pump (711) is installed at the discharge end of the side wall of the bottom of the microbial degradation tank (4).

4. The sewage treatment system for the pull arm on-board portable lavatory according to claim 1, wherein: the bottoms of the anaerobic storage degradation tank (2) and the microbial degradation tank (4) are arranged at the same horizontal height.

5. The sewage treatment system for the pull arm on-board portable lavatory according to claim 1, wherein: electromagnetic valves are arranged on connecting pipes among the sewage storage pool (1) of the mobile toilet, the anaerobic storage degradation pool (2), the sewage filtering area (3), the microbial degradation pool (4), the ozone sterilization and disinfection pool (5) and the purified water storage tank (6).

6. The method for recycling water in a sewage treatment system of a portable lavatory on a vehicle according to any one of claims 1 to 5, wherein the method comprises the steps of: the method also comprises the following using steps:

s101, sewage enters, and the pull arm vehicle-mounted mobile toilet sewage storage tank (1) is used for receiving and storing sewage generated by the pull arm vehicle-mounted mobile toilet during working and discharging the sewage into the anaerobic storage degradation tank (2) through the control of the pump body and the electromagnetic valve;

s102, anaerobic degradation treatment, wherein anaerobic bacteria can be added into the anaerobic storage degradation tank (2) for anaerobic bacteria degradation of sewage for 12-48h, and the degraded sewage can be transmitted to a sewage filtering area (3);

s103, filtering sewage; firstly, sewage is discharged into a sewage filtering tank (31), filtering holes (3124) of a pull-type filtering grid (312) in the sewage filtering tank (31) can intercept and remove large-particle suspended matters with the diameter larger than 5mm, the sewage is filtered into a filtering cylinder (321) in a solid-liquid separation tank (32) through the sewage filtering tank (31), a first filtering cylinder (3211) and a hopper-shaped second filtering net cylinder (3212) can realize one-step separation operation on the sewage, meanwhile, the pull-type filtering grid (312) can be pulled out in a mobile toilet to remove filtered sewage, and a valve body (3214) on a solid discharge pipe (3213) below the filtering cylinder (321) can be opened to discharge fine sewage in the filtering cylinder (321);

s104, performing microbial degradation on the sewage, namely adding aerobic bacteria into the microbial degradation tank (4) for degrading the aerobic bacteria in the sewage for 12-48h, and transmitting the degraded sewage into the ozone disinfection and sterilization tank (5);

s105, ozone sterilization and disinfection, wherein the ozone sterilization and disinfection tank (5) can receive ozone gas emitted by an external ozone generator, and the ozone is input into the ozone sterilization and disinfection tank (5) through a conduit to be mixed with sewage so as to carry out ozone sterilization treatment on the degraded sewage;

s106, storing and circularly processing the purified water, wherein the water after ozone sterilization can be discharged into a purified water storage tank (7) through a pipeline, and the purified water after sewage treatment is stored or circularly used;

s107, removing sludge; the centrifugal pump (711) in the bottom sludge removing mechanism (7) can be opened to remove the sludge generated in the degradation process of the anaerobic storage degradation tank (2) and the microbial degradation tank (4) and discharge the sludge to the vehicle-mounted mobile toilet.

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