CN111875106B

CN111875106B - Sewage treatment system

Info

Publication number: CN111875106B
Application number: CN202010764250.8A
Authority: CN
Inventors: 郭可伍
Original assignee: Jiangxi Wattech Environmental Protection Technology Co ltd
Current assignee: Jiangxi Wattech Environmental Protection Technology Co ltd
Priority date: 2020-08-02
Filing date: 2020-08-02
Publication date: 2022-05-27
Anticipated expiration: 2040-08-02
Also published as: CN111875106A

Abstract

Discloses a sewage treatment system, which comprises a filtering and settling chamber, a reaction chamber and an oxidation chamber, wherein the filtering and settling chamber, the reaction chamber and the oxidation chamber are communicated in sequence from upstream to downstream; wherein, be equipped with the inlet tube on the casing of filter precipitation room, the indoor baffle that is equipped with, the baffle will be cut apart into processing pond and the pond of keeping in with this filter precipitation room, the inlet tube, processing pond and the pond of keeping in communicate in proper order from the upper reaches to low reaches, be equipped with the filter in the processing pond, the filter is located the lower part of inlet tube, be equipped with the returning face plate on the baffle, the rotatable upper end of locating the baffle of returning face plate, be equipped with in the casing and wash the runner, when the filter is in the filtration inefficacy state, the returning face plate overturns to the upper end opening part that fits the processing pond of lid, pending sewage flows through the inlet tube in proper order, the returning face plate, and promote pending sewage to predetermineeing height department through the returning face plate, then wash the filter through washing the runner. This sewage treatment system, the operation is stable, has and carries out the function of automatic clearance to filtering debris, and the treatment effeciency is high.

Description

Sewage treatment system

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system.

Background

Water is a source of life and also a necessary resource for production and life. The water resource problem seriously influences the sustainable development of economy and society. The sewage comprises domestic sewage, industrial sewage, runoff sewage and the like, the sewage problem in the current society is more and more serious, and the sustainability of the problem of water resources is seriously influenced.

The existing sewage treatment system cannot stably run for a long time, cannot ensure the incomplete aspect of sewage treatment on the one hand, and has low treatment efficiency on the other hand.

Disclosure of Invention

In view of this, the present invention provides a sewage treatment system, which has stable operation, automatic cleaning function for filtering sundries, and high treatment efficiency, and can treat sewage thoroughly.

The invention provides a sewage treatment system which comprises a filtering and settling chamber, a reaction chamber and an oxidation chamber, wherein the filtering and settling chamber, the reaction chamber and the oxidation chamber are sequentially communicated from upstream to downstream;

wherein, the casing of the filtration and sedimentation chamber is provided with a water inlet pipe, a partition board is arranged indoors, the filtration and sedimentation chamber is divided into a treatment pool and a temporary storage pool by the partition board, the water inlet pipe, the treatment pool and the temporary storage pool are sequentially communicated from upstream to downstream, a filter plate is arranged in the treatment pool, the filter plate is positioned at the lower part of the water inlet pipe, the partition board is provided with a turnover plate, the turnover plate is rotatably arranged at the upper end of the partition board, when the filter plate is in a normal filtration state, an opening is formed between the turnover plate and the upper end surface of the treatment pool, so that the sewage to be treated from the water inlet pipe enters the filter plate for filtration,

the shell is internally provided with a washing flow channel, when the filter plate is in a filtering failure state, the turnover plate is turned over to cover the opening at the upper end of the treatment pool, sewage to be treated sequentially flows through the water inlet pipe and the turnover plate, and is lifted to a preset height position through the turnover plate, and then the filter plate is washed through the washing flow channel.

Preferably, the water inlet pipe and the temporary storage tank are respectively positioned at two opposite sides of the treatment tank, and the treatment tank is positioned below the water inlet pipe.

Preferably, be equipped with communicating pipe on the baffle, communicating pipe be used for with the treatment tank with the pond intercommunication of keeping in, communicating pipe is L shape, including first pipe and the second pipe that connects each other, the first end of first pipe is worn to locate on the baffle, the second end of first pipe with the second union coupling, the second pipe is vertical to be extended to predetermineeing distance department downwards.

Preferably, the outer side wall of the shell is provided with a slag discharge port, the slag discharge port is positioned below the water inlet pipe and above the filter plate and communicated with the treatment tank, the upper cover of the slag discharge port is closed with a cover plate, the lower end of the cover plate is rotatably connected on the outer wall of the shell,

the cover plate is provided with an elastic rope, the elastic rope is used for providing elastic force for the cover plate so that the cover plate can face the slag discharging opening and is covered on the slag discharging opening, one end of the elastic rope is connected to the outer side face of the cover plate, and the other end of the elastic rope is connected to the outer wall of the shell above the slag discharging opening.

Preferably, a turnover plate is further arranged in the shell and is rotatably arranged at the upper end of the partition plate, the turnover plate comprises a first plate, a second plate and a third plate which are sequentially connected, the second plate is obliquely arranged relative to the first plate in a direction away from the first plate, the third plate is arranged parallel to the first plate, the first plate is positioned on an upper opening of the treatment pool, the second plate and the third plate are positioned above the temporary storage pool, a floating ball is arranged below the first plate, a push claw is rotatably connected to the bottom wall of the first plate and is used for pushing the cover plate when the turnover plate is turned in a direction towards the treatment pool, a floating ball is further arranged below the filter plate in the treatment pool and is connected to the first plate through a connecting rod of the floating ball, and a first end of the connecting rod is connected with the floating ball, the second end penetrates through the filter plate and is slidably connected to the bottom of the first plate, the connecting rod is slidable relative to the filter plate,

the improved temporary storage tank is characterized in that a guide plate is further arranged in the shell, the guide plate is covered at the upper end opening of the temporary storage tank, a guide port is formed in the upper portion of the filter plate on the partition plate and corresponds to the slag discharge port, the first end of the guide plate is supported on the bottom wall of the guide port and penetrates into the treatment tank, and the second end of the guide plate is fixed on the inner wall of the temporary storage tank far away from the partition plate.

Preferably, the flushing flow channel is formed between the turnover plate and the guide plate, when the turnover plate is turned over towards the treatment tank to be supported on the upper end surface of the treatment tank, the turnover plate seals the upper end opening of the treatment tank, sewage to be treated from the water inlet pipe is lifted to a certain height through the turnover plate and then flushed into the flushing flow channel, and the flushing flow channel impacts the filter plate to flush sundries on the filter plate.

Preferably, a medicine feeding pipe is arranged on the top wall of the reaction chamber and used for feeding medicines for chemically treating sewage into the reaction chamber.

Preferably, a stirring device is further disposed in the reaction chamber, and the stirring device is disposed on a top wall of the reaction chamber and inserted into the reaction chamber in a downward direction.

Preferably, an oxygen conveying device and a medicine adding device are arranged on the oxidation chamber, the oxygen conveying device is used for conveying oxygen into the oxidation chamber, and the medicine adding device is used for adding medicines for oxidation treatment into the sewage to be treated.

The sewage treatment system in this application, the operation is stable, has the function of carrying out automatic clearance to filtering debris to can realize comparatively thorough processing, the treatment effeciency is high to the sewage that treats.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 shows a schematic configuration of a sewage treatment system according to an embodiment of the present invention.

Fig. 2 shows a schematic configuration of a filtering and settling chamber of a sewage treatment system according to an embodiment of the present invention (with the flipping panel open and the filter panel in normal use).

Fig. 3 shows an enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic view showing the construction of a filtering settling chamber of a sewage treatment system according to an embodiment of the present invention (a turning plate closes an inlet pipe of a filter plate, and the filter plate is in a washing treatment state).

Fig. 5 shows an enlarged view of a portion B in fig. 4.

In the figure: the device comprises a filtering sedimentation chamber 1, a shell 11, a slag discharge port 111, a cover plate 112, an elastic rope 113, a treatment tank 12, a slope 121, a sand discharge port 122, a temporary storage tank 13, a partition plate 14, a flow guide port 141, a support block 142, a turnover plate 15, a water inlet pipe 16, a flow guide plate 17, a floating ball 18, a connecting rod 19, a push claw 101, a first limiting block 102, a second limiting block 103, a filter plate 104, an elastic sliding sleeve 1041, a communicating pipe 105, a connecting pipe 106, a pull rope 107, an anoxic tank 2, an aerobic tank 3, an MBR membrane tank 4, a desalination tank 5, a storage tank 6, an oxygen blower 7, a first return channel 81, a second return channel 82, a water storage tank 9, a fixing plate 91, a spring 92, a reaction chamber 1000, a stirrer 1001, a driving motor 1002, a dosing pipe 1003, an oxidation chamber 2000, an oxygen delivery device 2001 and a dosing device 2002.

Detailed Description

Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.

Description of the drawings: the upstream and downstream are defined in the present invention in terms of the direction of flow of the sewage to be treated.

As shown in fig. 1 to 5, the present invention provides a sewage treatment system, which includes a filtering and settling chamber, a reaction chamber 1000 and an oxidation chamber 2000, wherein the filtering and settling chamber, the reaction chamber 1000 and the oxidation chamber 2000 are sequentially communicated from upstream to downstream, the filtering and settling chamber is used for filtering and settling sewage to be treated, the reaction chamber 1000 is used for chemically treating the filtered sewage and decomposing macromolecular organic substances, and the oxidation chamber 2000 is used for oxidizing organic pollutants in the sewage.

Wherein, be equipped with the inlet tube on filtering the casing 11 of drip chamber, indoor baffle 14 that is equipped with, baffle 14 will filter the drip chamber and cut apart into and handle pond 12 and the pond 13 of keeping in, inlet tube, handle pond 12 and the pond 13 of keeping in communicate in proper order from the upper reaches to low reaches, be equipped with filter 104 in the processing pond 12, filter 104 is located the below of inlet tube, be equipped with returning face plate 15 on the baffle 14, returning face plate 15 rotatable locate baffle 14's upper end when filter 104 is in normal filtration state, form the opening between returning face plate 15 and the up end of handling pond 12 for the pending sewage that comes from the inlet tube gets into the filter 104 filters.

A washing flow channel is arranged in the shell 11, when the filter plate 104 is in a filtering failure state, the turnover plate 15 is turned over to cover the opening at the upper end of the treatment pool 12, sewage to be treated sequentially flows through the water inlet pipe and the turnover plate 15, the sewage to be treated is lifted to a preset height through the turnover plate 15, and then the filter plate 104 is washed through the washing flow channel.

Referring to fig. 2 to 5, the filtration and precipitation chamber 1 includes a housing 11, a treatment tank 12 and a temporary storage tank 13, wherein the housing 11 is provided with a water inlet pipe 16, and the water inlet pipe 16, the treatment tank 12 and the temporary storage tank 13 are sequentially communicated from upstream to downstream. The treatment tank 12 and the temporary storage tank 13 are arranged in the shell 11, a partition plate 14 is arranged on the bottom wall in the shell 11, and the partition plate 14 extends upwards to the water inlet pipe 16. In this embodiment, the baffle 14 is substantially flush with the bottom of the inner wall of the inlet pipe. The partition 14 divides the lower space in the housing 11 into the treatment tank 12 and the temporary storage tank 13, the inlet pipe 16 and the temporary storage tank 13 are respectively located at opposite sides of the treatment tank 12, and the treatment tank 12 is located below the inlet pipe 16.

Wherein, a filter plate 104 is arranged in the treatment tank 12, a communicating pipe 105 is arranged on the baffle plate 14, the communicating pipe 105 is positioned at the lower part of the filter plate 104, and the communicating pipe 105 is used for communicating the treatment tank 12 with the temporary storage tank 13. In this embodiment, the connection pipe 105 is L-shaped, and includes a first pipe and a second pipe that are vertically connected to each other, a first end of the first pipe extends along a horizontal direction, that is, the first pipe penetrates through the partition plate 14 in a direction perpendicular to the partition plate 14, a second end of the first pipe is connected to the second pipe, and the second pipe extends downward to a predetermined distance. The housing 11 is further provided with a connecting pipe 106, the connecting pipe 106 is communicated with the temporary storage tank 13, the connecting pipe 106 is used for being connected with a downstream pipeline, for example, the downstream pipeline is communicated with a water pump, and the height of the connecting pipe 106 is slightly lower than that of the communicating pipe 105.

Furthermore, a slope 121 is arranged at the bottom of the treating tank 12, a sand discharge port 122 communicated with the treating tank 12 is formed in the shell 11, the slope 121 gradually decreases in gradient from the partition plate 14 to the sand discharge port 122, and the sand discharge port 122 is located at the position of the slope bottom. The slope 121 is used for settling the sewage entering the treatment tank 12 from the filter plate 104, settling silt components in the sewage on the slope 121, and discharging the sewage when the settling amount of the silt reaches a certain degree. Furthermore, a slag discharge port 111 is formed in the outer side wall of the shell 11, the slag discharge port 111 is located below the water inlet pipe 16 and is communicated with the treatment tank 12, and the slag discharge port 111 is arranged close to the water inlet pipe 16. The slag discharge port 111 is covered with a cover plate 112, wherein the lower end of the cover plate 112 is rotatably connected to the outer wall of the housing 11, an elastic rope 113 is arranged on the cover plate 112, and the elastic rope 113 is used for providing elastic force for the cover plate 112 so that the cover plate 112 can turn towards the slag discharge port 111 and cover the slag discharge port 111. One end of the elastic cord 113 is connected to the outer side surface of the cover plate 112, and the other end is connected to the outer wall of the shell 11 above the slag discharge port 111.

Still be equipped with returning face plate 15 in the casing 11, returning face plate 15 is rotatable to be located the upper end of baffle 14, returning face plate 15 is including the first board, second board and the third board that connect gradually, and the lower extreme of second board is connected with the hinged end of first board, and the upper end and the third board of second board are connected, the relative first board orientation of second board sets up towards the direction slope of keeping away from this first board, specifically is the relative first board orientation of upper end of second board and keeps away from the direction of this first board and extend towards the top slope, and the contained angle between first board and the second board is the obtuse angle promptly to, the relative first board of second board extends towards the interior roof of casing 11. The third plate is arranged in parallel with the first plate, the first plate is positioned on an upper opening of the treatment tank 12, the second plate and the third plate are positioned above the temporary storage tank 13, a push claw 101 is arranged below the first plate, the push claw 101 is rotatably connected to the bottom wall of the first plate, and the push claw 101 is used for pushing the cover plate 112 when the turnover plate 15 is turned over towards the treatment tank 12, so that the flushing water flow flushes the impurities on the filter plate 104. A floating ball 18 is further disposed below the filter plate 104 in the treatment tank 12, the floating ball 18 is connected to the first plate through a connecting rod 19, the connecting rod 19 is located between the push claw 101 and the partition plate 14, a first end of the connecting rod 19 is connected to the floating ball 18, a second end (i.e., an upper end) of the connecting rod 19 passes through the filter plate 104 and is slidably connected to the bottom of the first plate, and the connecting rod 19 is slidable relative to the filter plate 104. The floating ball 18 has a certain mass, and the sum of the masses of the first plate and the floating ball 18 is larger than the sum of the masses of the second plate and the third plate.

Furthermore, a limiting structure is arranged on one surface, facing the filter plate 104, of the first plate of the turnover plate 15, and is used for limiting the push claw 101. The limiting structure comprises a first limiting block 102 and a second limiting block 103, the first limiting block 102 and the second limiting block 103 are respectively located on two sides of the push claw 101, wherein the first limiting block 102 is closer to the slag discharge opening 111 relative to the second limiting block 103, and the second limiting block 103 is located between the push claw 101 and the connecting rod 19. In this embodiment, the axis of the rotating shaft of the pushing claw 101 is perpendicular to the sliding direction of the second end, i.e., the upper end tip, of the connecting rod 19. The pushing claw 101 is of a hook-shaped structure, the lower end of the pushing claw is bent towards the slag discharge port 111, and an extrusion ball is arranged at the end head of the lower end of the pushing claw 101 and is used for being in extrusion contact with the cover plate 112. In this way, when the turnover plate 15 is turned over toward the treatment tank 12, that is, turned over onto the upper end surface of the treatment tank 12 in the counterclockwise direction in fig. 2, the second limiting block 103 can enable the pushing claw 101 to be pushed and slid toward the cover plate 112 to push the cover plate 112 open, rather than enabling the lower end of the pushing claw 101 to be slid toward the side away from the cover plate 112, and during the process that the claw presses the cover plate 112, the first limiting block 102 can limit the pressing angle of the pushing claw 101, so as to prevent the pushing claw from being pressed down excessively and not providing a pressing force turning toward the outside for the cover plate 112; in addition, the two limiting blocks can enable the pushing claw 101 to swing within a preset angle, and in the process of opening the turnover plate 15, namely, when the turnover plate is turned over clockwise in fig. 2, the pushing claw can smoothly break away from the slag discharge port 111, so that interference between the pushing claw and the slag discharge port 111 is avoided.

In this embodiment, the first side of the filter plate 104 is rotatably connected to the inner wall of the housing 11, i.e., the treatment tank 12, which is disposed opposite to the partition 14, and the rotation shaft of the filter plate 104 is disposed below the slag discharge port 111 and adjacent to the slag discharge port 111. On the inner wall of the treatment tank 12, in particular on the side of the partition 14 facing the treatment tank 12, support blocks 142 are provided for supporting the second sides of the filter plates 104, the filter plates 104 being arranged horizontally when the filter plates 104 are supported on the support plates. In addition, be equipped with elastic sliding sleeve 1041 on the filter 104, this elastic sliding sleeve 1041 specifically can be made by rubber materials, and connecting rod 19 passes elastic sliding sleeve 1041 to can slide relative elastic sliding sleeve 1041, so, make connecting rod 19 can be relatively filter 104 swing in predetermineeing the angle.

A guide plate 17 is further arranged in the shell 11, the guide plate 17 covers the opening at the upper end of the temporary storage tank 13, a guide port 141 is formed in the upper portion of the filter plate 104 on the partition plate 14, the guide port 141 is correspondingly arranged at the slag discharge port 111, a first end of the guide plate 17 is supported on the bottom wall of the guide port 141 and penetrates into the treatment tank 12, and a second end of the guide plate 17 is fixed on the wall of the temporary storage tank 13 far away from the partition plate 14. In this embodiment, the diversion plate 17 includes a first flat plate, an inclined plate and a second flat plate which are connected in sequence, the first flat plate and the second flat plate are arranged in parallel, the first flat plate is located at the lower part of the second flat plate, and the inclined plate is arranged in an inclined manner relative to the first flat plate and the second flat plate. The end of the first flat plate passes through the diversion opening 141 and is supported on the bottom wall of the diversion opening 141, and the end of the second flat plate is fixed on the inner wall of the temporary storage tank 13 opposite to the partition plate 14.

A washing flow channel is formed between the second plate of the turnover plate 15 and the guide plate 17, when the turnover plate 15 is turned over towards the direction of the treatment tank 12 and is supported on the upper end surface of the treatment tank 12, the turnover plate 15 seals the upper end opening of the treatment tank 12, and sewage to be treated from the water inlet pipe 16 is lifted to a certain height from the turnover plate 15 and then flushed into the washing flow channel, and is impacted on the filter plate 104 from the washing flow channel to wash impurities on the filter plate 104.

Furthermore, a water storage tank 9 is arranged in the shell 11, and the water storage tank 9 is connected to the inner wall of the shell 11 through a fixing plate 91 of the water storage tank. Specifically, the water storage tank 9 is located between the second flat plate of the guide plate 17 and the third flat plate of the turnover plate 15, the first end of the fixing plate 91 is fixed on the inner wall of the housing 11, the bottom of the water storage tank 9 is rotatably connected to the second end of the fixing plate 91, wherein the rotating shaft of the water storage tank 9 is eccentrically arranged, that is, the rotating shaft of the water storage tank 9 is arranged in a direction deviating from the gravity center line of the rotating shaft to the first end of the fixing plate 91. Be connected with spring 92 between catch basin 9 and fixed plate 91, spring 92's first end is connected on the outer wall of catch basin 9, the second end is connected in the first end of fixed plate 91, spring 92 is used for providing predetermined pulling force to catch basin 9, so that catch basin 9 overcomes the pulling force of overcoming spring 92 when reaching the water storage capacity of predetermineeing weight and realizes the upset, thereby make the water in the catch basin 9 dash out in the twinkling of an eye, form great kinetic energy, thereby dash out debris on the filter 104, this debris specifically are large granule impurity and flocculus.

Further, a pulling rope 107 is connected between the turnover plate 15 and the filter plate 104. Specifically, a sliding hole is formed in the end of the first end of the baffle 17, the first end of the pull rope 107 is connected to the surface of the second plate of the turnover plate 15, which faces one side of the baffle 17, and the second end of the pull rope 107 sequentially penetrates through the flow guide port 141 and the sliding hole and is connected to the second side edge of the filter plate 104.

In this embodiment, referring to fig. 2 and 3, when the filter plate 104 is in a normal use state, the water level in the treatment tank 12 is higher than the communication pipe 105, the floating ball 18 is at least partially immersed in the water, the floating ball 18 floats upwards under the buoyancy of the water, so as to drive the turnover plate 15 to turn over to a position where the first plate thereof is separated from the upper end surface of the treatment tank 12, an opening is formed between the turnover plate 15 and the upper end surface of the treatment tank 12, and the opening communicates the water inlet pipe 16 with the treatment tank 12, so as to realize water inlet of the treatment tank 12.

Referring to fig. 4 and 5, when the filter plate 104 is used for a long time and cannot be used normally due to a large amount of impurities accumulated thereon, the water level in the treatment tank 12 gradually decreases, and the floating ball 18 drives the turnover plate 15 to turn over to the position where the first plate overlaps and is supported on the upper end surface of the treatment tank 12 under the action of the self gravity of the floating ball 18 along with the decrease of the water level. At this moment, inlet tube 16 through the returning face plate 15 with wash the runner intercommunication, pending sewage flows through inlet tube 16 in proper order, returning face plate 15 gets into catch basin 9, treat when the water yield in the catch basin 9 reaches preset weight, the direction upset of runner is washed to the pulling force orientation that spring 92 was overcome to catch basin 9, thereby make the water in the catch basin 9 wash out in the twinkling of an eye, form great kinetic energy, thereby wash out the debris on the filter 104, this debris can be leaf branch, debris such as weeds, the realization is to washing of filter 104, make filter 104 resume filtering capability.

This filter precipitation room 1 can realize the automatic cleaning function to realize filtering capability's automatic recovery.

A medicine feeding pipe 1003 is arranged on the top wall of the reaction chamber 1000, and the medicine feeding pipe 1003 is inserted into the reaction chamber 1000 and used for feeding medicines for chemically treating sewage into the reaction chamber 1000. A stirring device is further disposed in the reaction chamber 1000, and the stirring device is disposed on the top wall of the reaction chamber 1000 and inserted into the reaction chamber 1000 in a downward direction. In this embodiment, the stirring device includes a stirrer 1001 and a driving motor 1002, the driving motor 1002 is installed on the outer top wall of the reaction chamber 1000, and a driving shaft of the stirrer 1001 is coaxially connected with a rotating shaft of the driving motor 1002.

An oxygen delivery device 2001 and a drug adding device 2002 are arranged on the oxidation chamber 2000, the oxygen delivery device 2001 is used for inputting oxygen into the oxidation chamber, and the drug adding device 2002 is used for adding drugs for oxidation treatment into the sewage to be treated.

When the sewage treatment system in the embodiment is used, the following steps can be specifically referred to:

1) firstly, sewage to be treated enters a filtering and precipitating tank, floccules of large-particle impurities in the sewage are filtered, and then precipitation is carried out;

2) the filtered and precipitated sewage is lifted to a reaction chamber 1000 by a water pump, the medicine is added into the reaction chamber 1000, and a stirring device is started to fully stir the sewage and the medicine, so that the chemical reaction can be fully performed, and macromolecular organic matters such as protein, fat and the like are decomposed;

3) the chemically treated sewage is lifted by a water pump and enters an oxidation chamber 2000, oxygen is input through an oxygen input device 2001, medicines are added through a medicine adding device 2002, and then the sewage is sufficiently oxidized, so that organic pollutants generated in the last step in the sewage are further oxidized.

The sewage treatment system in this application, the operation is stable, has the function of carrying out automatic clearance to filtering debris to can realize comparatively thorough processing to the sewage of handling, the treatment effeciency is high.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. A sewage treatment system is characterized by comprising a filtering and settling chamber, a reaction chamber and an oxidation chamber, wherein the filtering and settling chamber, the reaction chamber and the oxidation chamber are sequentially communicated from upstream to downstream;

wherein, the casing of the filtration and sedimentation chamber is provided with a water inlet pipe, a partition board is arranged indoors, the partition board divides the filtration and sedimentation chamber into a treatment pool and a temporary storage pool, the water inlet pipe, the treatment pool and the temporary storage pool are sequentially communicated from upstream to downstream, a filter plate is arranged in the treatment pool, the filter plate is positioned below the water inlet pipe, the partition board is provided with a turnover plate, the turnover plate can be rotatably arranged at the upper end of the partition board, when the filter plate is in a normal filtration state, an opening is formed between the turnover plate and the upper end surface of the treatment pool, so that the sewage to be treated from the water inlet pipe enters the filter plate for filtration,

the shell is internally provided with a washing flow passage, when the filter plate is in a filtering failure state, the turnover plate is turned over to cover the opening at the upper end of the treatment pool, sewage to be treated sequentially flows through the water inlet pipe and the turnover plate, is lifted to a preset height through the turnover plate, and then is washed by the washing flow passage.

2. The wastewater treatment system of claim 1, wherein the inlet pipe and the holding tank are located on opposite sides of the treatment tank, and the treatment tank is located below the inlet pipe.

3. The sewage treatment system according to claim 1, wherein a communication pipe is disposed on the partition plate, the communication pipe is used for communicating the treatment tank with the temporary storage tank, the communication pipe is L-shaped and comprises a first pipe and a second pipe which are connected with each other, a first end of the first pipe penetrates through the partition plate, a second end of the first pipe is connected with the second pipe, and the second pipe extends downwards vertically to a preset distance.

4. The sewage treatment system of claim 1, wherein a slag discharge port is formed on the outer side wall of the housing, the slag discharge port is positioned below the water inlet pipe and above the filter plate and communicated with the treatment tank, a cover plate covers the slag discharge port, and the lower end of the cover plate is rotatably connected to the outer wall of the housing;

5. The wastewater treatment system according to claim 1, wherein a drug feeding pipe is provided on the top wall of the reaction chamber for feeding a drug for chemical treatment of wastewater into the reaction chamber.

6. The wastewater treatment system according to claim 5, wherein a stirring device is further provided in the reaction chamber, and the stirring device is provided on the top wall of the reaction chamber and inserted into the reaction chamber in a downward direction.

7. The wastewater treatment system according to claim 1, wherein an oxygen delivery device is provided on said oxidation chamber for delivering oxygen into said oxidation chamber.

8. The sewage treatment system of claim 7, wherein the oxidation chamber is further provided with a dosing device, and the dosing device is used for adding a drug for oxidation treatment to the sewage to be treated.