CN117228886A - Integrated sewage restoration and treatment device and restoration and treatment method - Google Patents

Abstract

The application discloses an integrated sewage restoration treatment device and restoration treatment method in the technical field of sewage restoration treatment equipment, and the integrated sewage restoration treatment device comprises a box body, wherein one side of the box body is communicated with a water inlet pipe, a first partition plate and a second partition plate are fixedly connected in the box body, the first partition plate and the second partition plate divide the box body into a filter cavity, a filter pressing cavity and a biological water purifying cavity, a plurality of layers of first filter screens are arranged in the filter cavity, a water pump is fixedly connected to the bottom of the filter cavity, the water pump is communicated with the filter pressing cavity, filter pressing cotton is fixedly connected in the filter pressing cavity, a water port communicated with the biological water purifying cavity is arranged at the upper side of the filter pressing cavity, a bacteria culturing box is fixedly connected in the water port, one-way valves are respectively communicated with the filter cavity and the biological water purifying cavity, a second filter screen is fixedly connected to the one-way valves, and a water outlet pipe is communicated to the bottom of the biological water purifying cavity, and extends out of the box body from the upper part of the side wall of the biological water purifying cavity. By adopting the technical scheme of the application, a small amount of residual impurities can be decomposed by microorganisms.

Description

An integrated sewage repair and treatment device and repair and treatment method

Technical field

The invention belongs to the technical field of sewage repair and treatment equipment, and specifically relates to an integrated sewage repair and treatment device and a repair and treatment method.

Background technique

With the continuous improvement of people's living standards, domestic water consumption is increasing day by day, resulting in an increasing amount of sewage discharge. Especially in rural areas, according to incomplete statistics, the total amount of domestic sewage produced in rural areas of my country every year can reach more than 8 billion m3. However, relevant research on sewage treatment in my country is concentrated in cities with more developed industrialization and denser populations. Most villages do not have drainage channels and sewage treatment facilities. The sewage generated is discharged directly into water bodies, seriously polluting the soil. , rivers and groundwater. The quality of domestic sewage produced in rural areas is different from that of urban domestic sewage. It contains a large amount of organic pollutants, suspended solids, nitrogen, phosphorus and other nutrients and toxic and harmful pollutants. It has the characteristics of large changes in water quality and quantity, and complex sewage types. If these sewage are discharged without treatment, they will cause serious pollution to rivers and soil, posing a serious threat to ecological security.

In order to solve the above problems, Patent Publication No. CN112591986B discloses an integrated sewage repair and treatment device and repair and treatment method, including a purification box, a pretreatment component, an adsorption component and a filter press component; the pretreatment component includes a filter cartridge and artificial aquatic plants. The cartridge is located at the upper end of the purification box, and the artificial water plants are located on the filter cartridge. The adsorption assembly includes a first motor, a gear set, a mounting plate and an activated carbon adsorption cartridge. The activated carbon adsorption cartridge is located on the mounting plate and is connected to the first motor through the gear set. connection, the filter press assembly includes a second motor and a filter press box. The filter press box is located at the lower end of the purification box. The filter press box is equipped with a filter press plate, a filter membrane and a water collection box. The second motor drives the filter press through the traction rope. The plate moves toward the filter press box.

The above-mentioned integrated sewage repair and treatment device and repair and treatment method enhance the purification capacity by deeply filtering and purifying the sewage through the filter press assembly. However, a small amount of impurities will still exist through filtration alone. The remaining impurities are usually precipitated by drying. However, the integrated device is small in size and it is difficult to provide a large-volume sedimentation tank for drying.

Contents of the invention

In order to solve the problem in the prior art that a small amount of impurities still exist through filtration, the purpose of the present invention is to provide an integrated sewage repair and treatment device and a repair and treatment method that can decompose the remaining small amounts of impurities through microorganisms.

In order to achieve the above object, the technical solution of the present invention is as follows: an integrated sewage repair and treatment device and a repair and treatment method, including a box, one side of the box is connected with a water inlet pipe, and a first partition and a third partition are fixedly connected in the box. Two partitions, the first partition and the second partition divide the box into a filter chamber, a pressure filter chamber and a biological water purification chamber. There are several layers of first filters in the filter chamber, and a water pump is fixedly connected to the bottom of the filter chamber. The water pump is connected to the filter chamber. The volume of the filter chamber is smaller than the filter chamber. The filter cotton is fixedly connected to the filter chamber. There is a water outlet connected to the biological water purification chamber on the upper side of the filter chamber. There is a culture medium fixedly connected to the water outlet. The bacteria box extends into the biological water purification chamber. There are one-way valves on both sides of the bacteria box. The one-way valves are connected to the filter chamber and the biological water purification chamber respectively. The one-way valves are located on the side walls of the bacteria box. In the middle, a second filter screen is fixedly connected to the one-way valve, and a water outlet pipe is connected to the bottom of the biological water purification chamber. The water outlet pipe extends out of the box from the upper part of the side wall of the biological water purification chamber.

The following beneficial effects have been achieved after adopting the above solution: connect the water inlet pipe to the sewage discharge outlet, and the sewage will first enter the filter chamber for preliminary filtration, which can filter out most impurities. Afterwards, the sewage will enter the filter chamber. The volume of the filter chamber is smaller than the filter chamber, which increases the flow rate of sewage. At the same time, a water pump is used to further pressurize the sewage flow. The filter cotton can filter out smaller impurities, but the filtration efficiency is low. The water pump is pressurized to maintain the filtration effect while increasing the filtration speed. At the same time, filtering before the filter press can reduce the probability of the filter press cotton being clogged.

After the sewage is filtered, almost all impurities are intercepted, but there are still impurities that can pass through the filter cotton. Part of the sewage in the filter chamber will enter the bacteria culture box. The second filter screen close to the filter chamber can reduce excessive impurities from entering the bacteria culture box, and the second filter screen close to the biological water purification chamber can reduce impurities from entering the biological purification box. At the same time, the sewage entering the culture box has not been filtered, so it contains more nutrients, which can support the reproduction of water-purifying bacteria in the culture box. After the sewage enters the culture box, the liquid in the culture box will increase, thereby flowing into the biological water purification chamber from the one-way valve close to the biological water purification chamber, increasing the number of water purification bacteria in the biological water purification chamber, and the biological water purification chamber The sewage in the chamber has fewer pollutants after pressure filtration. However, there are more water purification bacteria flowing into the biological water purification chamber from the one-way valve close to the biological water purification chamber, which can quickly consume pollutants and purify the water. Better results. At the same time, the outlet pipe is connected to the bottom of the biological water purification chamber, and extends from the upper part of the side wall of the biological water purification chamber out of the box, so that the sewage in the biological water purification chamber is discharged to the outside first from the lower part of the water body, and has a certain water storage capacity. Water storage can cultivate water purification bacteria in the biological water purification chamber. At the same time, it can buffer the impurity content in the sewage when receiving sewage, so that the impurity content in the water is lower, and the water purification bacteria can purify the sewage faster.

Compared with the existing technology, further purification of sewage through water purification bacteria can make the sewage cleaner without causing pollution to the natural environment; the filter press chamber uses a bottom-in and top-out design to make the waterway in the box longer, which can increase It also improves the treatment effect of sewage and makes the structure more compact; changing the size of the chamber can speed up the water flow, thereby increasing the filtration effect; the culture box can cultivate water purification bacteria, and the bacterial nutrients during culture come from sewage, which not only saves Cost, and will cause bacteria to compete and screen, leaving the water purification bacteria that are most suitable for this type of sewage, and can enter the biological water purification chamber with the sewage to replenish the nutrients in the culture box and reduce the intensity of manual work.

Further, a filter box with an upper side opening is provided on the upper side of the first filter. The side walls and bottom walls of the filter box are provided with filter eyes for filtering. The side walls of the filter box are higher than the one-way valve close to the filter cavity. The filter cavity The top wall of the filter chamber is detachably connected to the box body, and handles are fixedly connected to the top wall of the filter chamber and the filter box.

Beneficial effects: As sewage continues to be discharged, the filter chamber, which filters out the most impurities, is easily clogged. Impurities can be intercepted in the filter box through the filter box. The user can open the top wall of the filter chamber, lift out the filter box, and clean out the impurities. At the same time, the side wall of the filter box also has a filtering effect, which can further reduce impurities entering the culture box.

Furthermore, several activated carbon adsorption blocks are fixedly connected to the side wall of the biological water purification chamber.

Beneficial effects: There are limited methods for treating the remaining tiny impurities after filter press. The activated carbon adsorption block can adsorb some of the tiny impurities through adsorption, improving the efficiency of the device in purifying sewage.

Furthermore, the top wall of the biological water purification chamber is a grid structure for hydroponic plants, and a number of aquatic plants for water purification are planted on the grid.

Beneficial effects: The roots of hydroponic plants can absorb some ions in the sewage, reduce the content of heavy metals in the sewage, and reduce the probability that the sewage will cause eutrophication of the external water environment.

Furthermore, a solar power generation panel is fixedly connected to the upper surface of the top wall of the filter press chamber. The end of the solar power generation panel close to the filter cavity is higher than the end close to the biological water purification cavity. A battery is installed in the box.

Beneficial effects: When the device is located outdoors, it can facilitate the growth of hydroponic plants. At the same time, it can use solar energy to generate electricity and store the electric energy in the battery, making the energy greener and more suitable for outdoor work. Inclined placement can improve space utilization and maximize the solar panel area without affecting the opening of the top wall of the filter cavity.

Furthermore, the culture box is equipped with a bacteria house.

Beneficial effects: The bacteria house has a large number of holes for water purification bacteria to adhere to, allowing the bacteria culture box to accommodate more bacteria. At the same time, the bacteria house can act as a filter material to further filter sewage.

Further, a temperature sensor is fixedly connected to the culture box, an electric heating wire is provided in the bottom wall of the culture box, and a semiconductor refrigeration chip is provided on the side wall of the culture box.

Beneficial effects: The water purification bacteria in the culture box may be killed by high temperature or reduced in activity by cold. The temperature change in the culture box can be detected by the temperature sensor, and the temperature change in the culture box can be controlled by the electric heating wire and semiconductor refrigeration piece. The temperature is the most suitable temperature for water purification bacteria to multiply.

Further, the repair and treatment method of the integrated sewage repair and treatment device described in claims 1 to 2 includes the following steps:

Step 1: Place the box outdoors, and connect the water inlet pipe to the sewage discharge port. The sewage will be filtered layer by layer in the filter chamber, and large impurities in the sewage will be intercepted in the filter box. Excessive impurities will accumulate in the filter box. , open the top wall of the filter cavity, take out the filter box, and pour out the impurities in the filter box;

In step two, the sewage will be filtered again through the filter cotton and then enter the biological water purification chamber. The water purification bacteria in the culture box will be impacted by the water flow entering from the one-way valve into the biological water purification chamber, and the sewage will be biologically treated to make the water purified. Impurities in the body are decomposed and absorbed, and tiny impurities are adsorbed through activated carbon. Then, under the action of water flow, the water flow in the lower part of the biological water purification chamber will overflow into the outlet pipe and be discharged.

Beneficial effects: Compared with conventional sewage treatment devices, the integrated one is lighter in size and weight and easier to deploy, instead of requiring long-distance pipelines for connection. It is more suitable for deployment in areas with underdeveloped infrastructure such as rural areas and mountainous areas.

Description of drawings

Figure 1 is a schematic diagram of an embodiment of the present invention.

Figure 2 is a schematic diagram of this culture box.

Detailed ways

The following is further detailed through specific implementation methods:

The reference numbers in the drawings of the description include: box 1, water inlet pipe 2, first partition 3, second partition 4, filter chamber 5, pressure filter chamber 6, biological water purification chamber 7, first filter 8 , water pump 9, filter cotton 10, culture box 11, one-way valve 12, second filter 13, outlet pipe 14, filter box 15, handle 16, activated carbon adsorption block 17, grid structure 18, solar power panel 19 , battery 20, bacteria house 21, temperature sensor 22, heating wire 23, semiconductor refrigeration piece 24.

Embodiment 1

The embodiment is basically as shown in Figure 1 and Figure 2:

An integrated sewage repair and treatment device and a repair and treatment method, including a box 1. One side of the box 1 is connected with a water inlet pipe 2. A first partition 3 and a second partition 4 are integrally formed in the box 1. A partition 3 and a second partition 4 divide the box 1 into a filter chamber 5, a filter pressure chamber 6 and a biological water purification chamber 7. Several layers of first filters 8 are fixed with screws in the filter chamber 5. The bottom of the filter chamber 5 The water pump 9 is fixed with bolts. The model of the water pump 9 is WP-12000LP-30w. The water pump 9 is connected with the filter press chamber 6. The volume of the filter press chamber 6 is smaller than the filter chamber 5. There is a filter cotton 10 fixed in the filter press chamber 6. A water outlet connected to the biological water purification chamber 7 is provided on the upper side of the filter pressure chamber 6. A culture box 11 is fixed with bolts in the water outlet. The culture box 11 extends into the biological water purification chamber 7. Both sides of the culture box 11 are pasted. A one-way valve 12 is fixed. The one-way valve 12 is connected with the filter chamber 5 and the biological water purification chamber 7 respectively. The one-way valves 12 are located in the middle of the side wall of the culture box 11. The one-way valves 12 are bonded and fixed with a second The filter 13 and the bottom of the biological water purification chamber 7 are connected with an outlet pipe 14. The outlet pipe 14 extends from the upper part of the side wall of the biological water purification chamber 7 out of the box 1.

The specific implementation process is as follows: Connect the water inlet pipe 2 to the sewage discharge port, and the sewage will first enter the filter chamber 5 for preliminary filtration, which can filter out most impurities. After that, the sewage will enter the filter chamber 6. The volume of the filter chamber 6 is smaller than the filter chamber 5, which increases the flow rate of the sewage. At the same time, the water pump 9 is used to further pressurize the sewage flow; the filter cotton 10 can filter out smaller impurities. However, the filtration efficiency is low. The water pump 9 is pressurized to allow the water flow to pass through the filter cotton 10 more quickly, thereby increasing the filtration speed while maintaining the filtration effect. At the same time, preliminary filtration is performed before the filter press to remove large pieces of impurities. Intercept and reduce the probability of the filter cotton 10 being clogged.

After the sewage is filtered, almost all impurities are intercepted, but there are still impurities that can pass through the filter cotton 10. Part of the sewage in the filter chamber 5 will enter the culture box 11. The second filter screen 13 close to the filter chamber 5 can reduce excessive impurities from entering the culture box 11, and the second filter screen close to the biological water purification chamber 7 13 can reduce the probability of impurities entering the biological water purification chamber 7. At the same time, the sewage entering the culture box 11 has not been filtered, so it contains more nutrients, which can support the reproduction of the water purification bacteria in the culture box 11. The one-way valve 12 on the culture box 11 is located in the middle, so that a certain amount of sewage for cultivating water-purifying bacteria is maintained in the culture box 11 . After the sewage enters the bacterial culture box 11, the liquid in the bacterial culture box 11 will increase, thereby flowing into the biological water purification chamber 7 from the one-way valve 12 close to the biological water purification chamber 7, adding purified water to the biological water purification chamber 7 The number of bacteria. The sewage in the biological water purification chamber 7 has been filtered and has fewer pollutants. However, there are more water purification bacteria flowing into the biological water purification chamber 7 from the one-way valve 12 close to the biological water purification chamber 7, which can Rapidly consume pollutants to achieve better water purification effects. At the same time, the outlet pipe 14 is connected to the bottom of the biological water purification chamber 7 and extends from the upper side wall of the biological water purification chamber 7 out of the box 1, so that the sewage in the biological water purification chamber 7 is discharged to the outside first from the lower part of the water body, and there is Certain water storage capacity. The water storage can cultivate water purification bacteria in the biological water purification chamber 7, and can buffer the impurity content in the sewage when receiving sewage, so that the impurity content in the water is lower, and the water purification bacteria can purify the sewage faster.

This invention further purifies sewage through water purification bacteria, which can make the sewage cleaner without causing pollution to the natural environment; the filter pressure chamber 6 uses a bottom-in and top-out design to make the water path in the box 1 longer, which can increase the flow of sewage. processing effect, while making the structure more compact; changing the size of the chamber can speed up the water flow, thereby increasing the filtration effect; the bacteria culture box 11 can cultivate water purification bacteria, and the bacterial nutrients during culture come from sewage, which not only saves costs , and will cause the bacteria to compete and screen, leaving the most suitable water purification bacteria for this type of sewage, and can enter the biological water purification chamber 7 with the sewage to replenish the nutrients in the culture box 11 and reduce the intensity of manual work.

Embodiment 2

The difference from the above embodiment is that a filter box 15 with an upper opening is placed on the upper side of the first filter 8. The side walls and bottom walls of the filter box 15 are provided with filter eyes for filtering. The side walls of the filter box 15 are high As for the one-way valve 12 close to the filter chamber 5, the top wall of the filter chamber 5 and the box 1 are detachably connected by bolts. The top wall of the filter chamber 5 and the filter box 15 are both screwed with handles 16.

The specific implementation process is as follows: As sewage continues to be discharged, the filter chamber 5, as the chamber that filters out the most impurities, is easily blocked. Impurities can be intercepted in the filter box 15 through the filter box 15. The user can open the top wall of the filter chamber 5, lift out the filter box 15, and clean the impurities. At the same time, the side wall of the filter box 15 also has a filtering effect, which can further reduce impurities entering the culture box 11.

Embodiment 3

The difference from the above embodiment is that several activated carbon adsorption blocks 17 are screwed on the side wall of the biological water purification chamber 7 .

The specific implementation process is as follows: There are limited methods for treating the remaining tiny impurities after filtering. The activated carbon adsorption block 17 can adsorb some of the tiny impurities through adsorption, improving the efficiency of the device in purifying sewage.

Embodiment 4

The difference from the above embodiment is that the top wall of the biological water purification chamber 7 is a grid structure 18 for hydroponic plants, and a number of aquatic plants for water purification are planted on the grid.

The specific implementation process is as follows: The roots of hydroponic plants can absorb some ions in the sewage, reduce the content of heavy metals in the sewage, and at the same time reduce the probability that the sewage will cause eutrophication of the external water environment.

Embodiment 5

The difference from the above embodiment is that the upper surface of the top wall of the filter chamber 6 is screwed with a solar power generation panel 19. The model of the solar power generation panel 19 is PETC-SE6.5. The end of the solar power generation panel 19 close to the filter cavity 5 is higher than Near one end of the biological water purification chamber 7, a battery 20 is fixed with bolts in the box 1, and the model of the battery 20 is L2-400.

The specific implementation process is as follows: when the device is located outdoors, it can facilitate the growth of hydroponic plants, and can also use solar energy to generate electricity and store the electric energy in the battery 20, making the energy greener and more suitable for outdoor work. Inclined placement can improve space utilization and increase the solar panel area as much as possible without affecting the opening of the top wall of the filter cavity 5.

Embodiment 6

The difference from the above embodiment is that the bacteria house 21 is fixed and bonded in the culture box 11 .

The specific implementation process is as follows: the bacteria house 21 has a large number of holes for water purification bacteria to adhere to, so that the bacteria culture box 11 can accommodate more bacteria. At the same time, the bacteria house 21 can act as a filter material to further filter sewage.

Embodiment 7

The difference from the above embodiment is that a temperature sensor 22 is fixed with screws in the culture box 11, and the model of the temperature sensor 22 is DS18B20. An electric heating wire 23 is installed in the bottom wall of the culture box 11, and the model of the electric heating wire 23 is 6aYSjFmn. A semiconductor refrigeration piece 24 is installed on the side wall of the culture box 11, and the model of the semiconductor refrigeration piece 24 is TEC1-12706.

The specific implementation process is as follows: the water purification bacteria in the culture box 11 may be killed by high temperature or reduced in activity by cold. The temperature change in the culture box 11 can be detected by the temperature sensor 22, and the temperature change in the culture box 11 is detected through the electric heating wire 23 and the semiconductor refrigeration chip. 24. Control the temperature in the bacteria culture box 11 to be the most suitable temperature for water purification bacteria reproduction.

Embodiment 8

The difference from the above embodiment is that the repair and treatment method of the integrated sewage repair and treatment device described in claims 1 to 2 includes the following steps:

Step 1: Place the box 1 outdoors, and connect the water inlet pipe 2 to the sewage discharge port. The sewage will be filtered layer by layer in the filter chamber 5, and large impurities in the sewage will be intercepted in the filter box 15. In the filter box 15. When too much impurities accumulate, open the top wall of the filter chamber 5, take out the filter box 15, and pour out the impurities in the filter box 15;

Step 2: The sewage will be filtered again through the filter cotton 10 and then enter the biological water purification chamber 7. The water purification bacteria in the culture box 11 will be impacted by the water flow entering from the one-way valve 12 into the biological water purification chamber 7, and the sewage will be treated. Biological treatment decomposes and absorbs impurities in the water, and adsorbs tiny impurities through activated carbon. Then, under the action of water flow, the water flow in the lower part of the biological water purification chamber 7 will overflow into the water outlet pipe 14 and be discharged.

The specific implementation process is as follows: Compared with conventional sewage treatment devices, the integrated one is lighter in size and weight and easier to deploy, instead of requiring long-distance pipelines for connection. It is more suitable for deployment in areas with underdeveloped infrastructure such as rural areas and mountainous areas.

The above are only embodiments of the present invention. Common knowledge such as the specific structures and characteristics of the solutions are not described in detail here. Those of ordinary skill in the art are aware of all common knowledge in the technical field to which the invention belongs before the filing date or priority date. Technical knowledge, being able to know all the existing technologies in the field, and having the ability to apply conventional experimental methods before that date. Persons of ordinary skill in the field can, under the inspiration given by this application, combine their own abilities to perfect and implement this plan, Some typical well-known structures or well-known methods should not be an obstacle for those of ordinary skill in the art to implement the present application. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention and will not affect the implementation of the present invention. effectiveness and patented practicality. The scope of protection claimed in this application shall be based on the content of the claims, and the specific implementation modes and other records in the description may be used to interpret the content of the claims.

Claims (8)

1. An integral type sewage restoration device of administering, its characterized in that: including the box, one side intercommunication of box has the water inlet pipe, first baffle of fixedly connected with and second baffle in the box, first baffle and second baffle cut apart the box into filter chamber, filter-pressing chamber and biological water purification chamber, be equipped with the first filter screen of a plurality of layers in the filter chamber, filter chamber bottom fixedly connected with water pump, water pump and filter-pressing chamber intercommunication, filter-pressing chamber volume is less than the filter chamber, filter-pressing intracavity fixedly connected with filter-pressing cotton, the filter-pressing chamber upside is equipped with the water port with biological water purification chamber intercommunication, fixedly connected with banks up fungus box in the water port, it extends to biological water purification intracavity to bank up fungus box, it all is equipped with the check valve to bank up fungus box both sides, the check valve communicates with filter chamber and biological water purification chamber respectively, the check valve all is located banks up fungus box lateral wall middle part, equal fixedly connected with second filter screen on the check valve, biological water purification chamber bottom intercommunication has the outlet pipe, the outlet pipe extends outside the box from biological water purification chamber lateral wall upper portion.

2. The integrated wastewater remediation and remediation device of claim 1, wherein: the upper side of the first filter screen is provided with an upper side open-ended filter tank, the side wall and the bottom wall of the filter tank are both provided with filter eyes for filtering, the side wall of the filter tank is higher than a one-way valve close to a filter cavity, the top wall of the filter cavity is detachably connected with the tank body, and handles are fixedly connected on the top wall of the filter cavity and the filter tank.

3. The integrated wastewater remediation and remediation device of claim 2, wherein: a plurality of activated carbon adsorption blocks are fixedly connected to the side wall of the biological water purifying cavity.

4. The integrated wastewater remediation and remediation device of claim 3, wherein: the top wall of the biological water purifying cavity is a grid structure for water planting plants, and a plurality of water plants for water purification are planted on the grid.

5. The integrated wastewater remediation and remediation device of claim 4, wherein: the upper surface of the top wall of the filter pressing cavity is fixedly connected with a solar power generation plate, one end of the solar power generation plate, which is close to the filter cavity, is higher than one end, which is close to the biological water purification cavity, and a storage battery is arranged in the box body.

6. The integrated wastewater remediation and remediation device of claim 5, wherein: a bacteria house is arranged in the bacteria culturing box.

7. The integrated wastewater remediation and remediation device of claim 6, wherein: the inner part of the fungus culturing box is fixedly connected with a temperature sensor, an electric heating wire is arranged in the bottom wall of the fungus culturing box, and a semiconductor refrigerating sheet is arranged on the side wall of the fungus culturing box.

8. A sewage restoration treatment method is characterized in that: a remediation method of an integrated sewage remediation device according to claims 1 to 2, comprising the steps of:

step one, placing a box body outdoors, connecting a water inlet pipe to a sewage discharge port, filtering sewage in an inner layer of a filter cavity, intercepting large impurities in the sewage in the filter box, opening the top wall of the filter cavity when the filter box stacks excessive impurities, taking out the filter box, and pouring out the impurities in the filter box;

step two, sewage can get into biological water purification chamber after filtering once more through filter-pressing cotton, and the water purification bacterium in the bacterial culturing box is impacted into biological water purification chamber by the rivers that get into from the check valve, carries out biological treatment to sewage, makes impurity in the water decomposed the absorption to adsorb tiny impurity through the active carbon, later under the effect of rivers, the rivers of biological water purification chamber lower part can diffuse into the outlet pipe and discharge.