CN217498941U - Sewage treatment system - Google Patents

Abstract

The embodiment of the application provides a sewage treatment system, sewage treatment system is including deposiing the device, it includes precipitation container, the first emission pipe and the second discharge pipe that are linked together, locates respectively to deposit the device the first valve and the second valve of first emission pipe and second discharge pipe, precipitation container is provided with bottom export and turbid liquid export, the height that turbid liquid exported is higher than the height of bottom export, the bottom export with first emission union coupling, turbid liquid export with second discharge union coupling. The application is used for improving the output rate of muddy water and turbid liquid in the settling device.

Description

Sewage treatment system

Technical Field

The application relates to the technical field of environmental protection, especially, relate to a sewage treatment system.

Background

In the related art, in the process of treating the sewage, a precipitation method (e.g., an alkali precipitation method) may be generally adopted such that the sewage is sequentially divided into a supernatant layer, a turbid liquid layer, and a bottom sludge layer from top to bottom in a precipitation device. Further, the turbid liquid and the muddy water can be further treated by conveying the turbid liquid in the turbid liquid layer and the muddy water in the bottom muddy water layer to a subsequent treatment device. For example, the turbid liquid and muddy water may be fed to a filtration apparatus for filtration treatment.

In the related art, the muddy water and the turbid liquid are generally transferred from the settling device to a subsequent treatment device by providing a bottom outlet at the bottom of the settling device. The mode of enabling the muddy water and the turbid liquid to be output from the bottom outlet can affect the conveying or the treatment of the muddy water and the turbid liquid to a certain extent.

For example, in the process that the muddy water and the turbid liquid are collected to the same pipeline and conveyed to the subsequent treatment equipment, because the bottom outlet is arranged at the bottom of the sedimentation device, the muddy water closest to the bottom can be firstly output from the sedimentation device, because the content of particulate matters in the muddy water is high, the flowability of the muddy water is lower than that of the turbid liquid, the firstly output muddy water is easily attached to the pipe wall of the conveying pipeline, and therefore the output speed of the muddy water and the turbid liquid in the sedimentation device is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a sewage treatment system to solve how to improve muddy water and turbid liquid and all export from the bottom, can cause the problem of certain influence to the transport or the processing of muddy water and turbid liquid.

The sewage treatment system that this application embodiment provided includes: a precipitation device; the precipitation device comprises: sedimentation container, first discharge pipe, second discharge pipe, first valve and second valve, first valve set up in first discharge pipe, first valve is used for control the break-make of first discharge pipe, the second valve set up in the second discharge pipe, the second valve is used for control the break-make of second discharge pipe, sedimentation container is provided with bottom export and turbid liquid export in sewage treatment system's direction of height, the position of bottom export is less than the position of turbid liquid export, the bottom export with first discharge union coupling, turbid liquid export with the second discharge union coupling.

Optionally, the sewage treatment system further comprises a third discharge pipe, and one end of the first discharge pipe away from the sedimentation container and one end of the second discharge pipe away from the sedimentation container are commonly communicated to the third discharge pipe.

Optionally, the sewage treatment system further comprises: the first discharge pipe and the second discharge pipe are connected with the first end, and the second end is connected with the filtering device.

Optionally, the filtering apparatus includes a plurality of filters and a plurality of liquid inlet pipes, an inlet of each liquid inlet pipe is connected to the second end, and an outlet of each liquid inlet pipe leads to the filters in a one-to-one correspondence.

Optionally, the filtration device is provided with a filtered water outlet connected to the settling vessel.

Optionally, the sewage treatment system further comprises: a dewatering device; the dehydration device is used for dehydrating the filter residue filtered by the filtering device;

the dehydration device is provided with a dehydration outlet which is connected with the sedimentation container.

Optionally, the number of the turbid liquid outlets is multiple, the turbid liquid outlets are sequentially arranged along the height direction of the sewage treatment system, the number of the second discharge pipes and the number of the second valves are equal to the number of the turbid liquid outlets, the second valves are correspondingly arranged in the second discharge pipes, and the turbid liquid outlets are correspondingly connected with the second discharge pipes.

Optionally, the sedimentation container is further provided with a supernatant outlet, the sedimentation device further comprises a fourth discharge pipe and a third valve, the third valve is arranged in the fourth discharge pipe and used for controlling the on-off of the fourth discharge pipe, and the supernatant outlet is connected with the fourth discharge pipe.

Optionally, the fourth discharge pipe includes a third end portion, the third end portion extends into the sedimentation container, the third end portion is disposed upward along a height direction of the sewage treatment system, and the supernatant outlet is disposed in an area where the third end portion is located.

Optionally, the number of the supernatant outlets is multiple, the multiple supernatant outlets are sequentially arranged along the height direction of the sewage treatment system, the number of the fourth discharge pipes and the number of the third valves are equal to the number of the supernatant outlets, the third valves are correspondingly arranged in the fourth discharge pipes, and the supernatant outlets are correspondingly connected with the fourth discharge pipes;

the number of the turbid liquid outlets is multiple, the plurality of turbid liquid outlets are sequentially arranged along the height direction of the sewage treatment system, the number of the second discharge pipes and the number of the second valves are equal to the number of the turbid liquid outlets, the second valves are correspondingly arranged in the second discharge pipes, and the turbid liquid outlets are correspondingly connected with the second discharge pipes;

in the height direction of the sewage treatment system, the position of the supernatant outlet at the highest position is higher than the position of the turbid liquid outlet at the highest position, and the position of the supernatant outlet at the lowest position is lower than the position of the turbid liquid outlet at the highest position.

Optionally, the sewage treatment system further comprises: a neutralization pond; the supernatant outlet is connected with the neutralization tank through the fourth discharge pipe.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

in the embodiment of this application, can carry sewage to carry out the sedimentation treatment in the sediment device, can be so that sewage divide into supernatant liquid layer, muddy liquid layer and bottom muddy water layer from last to down in proper order in the sediment device. Illustratively, the supernatant may be first exported. The second valve can be opened and the first valve can be closed, so that the turbid liquid can be output by the second discharge pipe. After the turbid liquid layer is output, the second valve can be closed, and the first valve is opened, so that muddy water is output by the first discharge pipe.

In the embodiment of the application, the opening and closing of the first valve and the second valve can be controlled as required, so that the turbid liquid and the muddy water can be output as required, and the corresponding problem in the related art that the muddy water is output firstly and the turbid liquid can be output only after the muddy water is output is solved.

In addition, the sewage treatment system's that this application embodiment provided sedimentation container is provided with bottom export and turbid liquid export, can be used for exporting muddy water and turbid liquid respectively, can improve in the correlation technique, muddy water and turbid liquid all export from the bottom export, can cause the problem of certain influence to the transport or the processing of muddy water and turbid liquid.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic view of a wastewater treatment system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating a connection relationship between a settling vessel, a first discharge pipe and a second discharge pipe according to an embodiment of the present disclosure;

fig. 3 is a schematic view of a connection relationship between a settling vessel and a fourth discharge pipe according to an embodiment of the present disclosure.

Description of reference numerals:

100-a sewage treatment system; 110-a precipitation unit; 111-a precipitation vessel; 1111-bottom outlet; 1112-turbid liquid outlet; 1113-outlet for supernatant; 112-a first discharge pipe; 113-a second discharge pipe; 114-a fourth discharge pipe; 1141-a third end; 120-a filtration device; 121-a filter; 122-a liquid inlet pipe; 130-a third drain pipe; 131-a first end portion; 132-a second end; 140-a dewatering device; 150-neutralization tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

The embodiment of the application provides a sewage treatment system. Referring to fig. 1 to 3, a sewage treatment system 100 provided in an embodiment of the present application includes: a precipitation device 110. The precipitation device 110 may include: a settling vessel 111, a first drain pipe 112, a second drain pipe 113, a first valve, and a second valve.

A first valve may be disposed in the first exhaust pipe 112, and the first valve may be used to control the on/off of the first exhaust pipe 112. A second valve may be provided at the second discharge pipe 113, and the second valve may be used to control the on/off of the second discharge pipe 113.

The settling vessel 111 may be provided with a bottom outlet 1111 and a turbid liquid outlet 1112. The bottom outlet 1111 may be positioned lower than the turbid liquid outlet 1112 in the height direction of the sewage treatment system 100. The bottom outlet 1111 may be connected to the first discharge pipe 112, and the turbid liquid outlet 1112 may be connected to the second discharge pipe 113. Illustratively, the bottom outlet 1111 may be connected to the first discharge pipe 112 via a connection pipe, and the turbid liquid outlet 1112 may be connected to the second discharge pipe 113 via a connection pipe.

In this way, in the embodiment of the present application, the sewage may be conveyed into the settling device 110 for settling treatment, so that the sewage is sequentially divided into the supernatant layer, the turbid liquid layer, and the bottom muddy water layer from top to bottom in the settling device 110. Illustratively, the supernatant may first be exported. The second valve may be opened and the first valve may be closed, thereby discharging the turbid liquid through the second discharge pipe 113. After the output of the turbid liquid is completed, the second valve may be closed and the first valve may be opened, so that the turbid liquid is output through the first discharge pipe 112.

In the embodiment of the application, the opening and closing of the first valve and the second valve can be controlled as required, so that the turbid liquid and the muddy water can be output as required, and the corresponding problem in the related art that the muddy water is output firstly and the turbid liquid can be output only after the muddy water is output is solved.

In addition, the sedimentation container 111 of the sewage treatment system 100 provided by the embodiment of the present application is provided with the bottom outlet 1111 and the turbid liquid outlet 1112, which can be respectively used for outputting the muddy water and the turbid liquid, so as to solve the problem that in the related art, the muddy water and the turbid liquid are both output from the bottom outlet, which may cause certain influence on the transportation or treatment of the muddy water and the turbid liquid.

In addition, adopt the scheme that this application embodiment provided, can be through controlling the mode of first valve and second valve respectively for wait that turbid liquid is prior to muddy water output. It can be understood that the viscosity of the muddy water is greater than that of the turbid liquid, and if the muddy water is output first, the muddy water is easy to adhere to the conveying pipeline, so that the subsequent conveying speed of the turbid liquid is lower. If the liquid to be turbid is output first, the output speed of the liquid to be turbid can be higher, and the overall output speed of the liquid to be turbid and the muddy water can be further improved.

It should be noted that, for example, in the embodiment of the present application, the portion of the settling vessel 111 located below may be configured to be large above and small below. For example, the lower portion of the settling vessel 111 may be in a funnel-like configuration. The bottom outlet 1111 may be disposed at the bottom of the settling vessel 111. Illustratively, in embodiments of the present application, the turbid liquid outlet 1112 may be provided to a side wall of the precipitation vessel 111.

In an embodiment of the present application, the first discharge pipe 112 and the second discharge pipe 113 may be connected. For example, the first discharge pipe 112 and the second discharge pipe 113 may be connected to two ports of a three-way joint, respectively, and the other port of the three-way joint may be connected to a filtering apparatus, so that the turbid liquid and the muddy water can be delivered to the filtering apparatus via the first discharge pipe 112 and the second discharge pipe 113, respectively. The first and second discharge pipes 112 and 113 may be connected to each other by a three-way joint.

For example, in an embodiment of the present application, the sewage treatment system 100 may further include a third discharge pipe 130, and an end of the first discharge pipe 112 away from the settling container 111 and an end of the second discharge pipe 113 away from the settling container 111 may be commonly connected to the third discharge pipe 130. Further, the turbid liquid and the muddy water can be respectively conveyed to the subsequent treatment device by the third discharge pipe 130, and the first discharge pipe 112 and the second discharge pipe 113 can be combined by the third discharge pipe 130, so that the pipelines can be shared, and the manufacturing cost of the sewage treatment system 100 can be reduced.

In an embodiment of the present application, the sewage treatment system 100 may further include: a filter device 120, and a third drain pipe 130. The third discharge pipe 130 may be provided with a first end 131 and a second end 132, and the first discharge pipe 112 and the second discharge pipe 113 may be connected to the first end 131, and the second end 132 may be connected to the filtering device 120. In this way, the turbid liquid and the muddy water can be filtered by the filter device 120.

It should be noted that, alternatively, in the embodiment of the present application, the turbid liquid may be first conveyed to the filtering device 120 for filtering by operating the first valve and the second valve, and then the turbid liquid may be conveyed to the filtering device 120 for filtering. It will be appreciated that the impurities in the muddy water are much greater than the impurities in the turbid liquid. If the muddy water is first fed to the filter device 120 for filtration, the muddy water is liable to clog a filter (e.g., a filter element) of the filter device 120. This affects the filtration rate of the turbid liquid during subsequent transport to the filtration unit 120 for filtration. Therefore, the overall filtration rate of the turbid liquid and the muddy water can be improved by conveying the turbid liquid to the filter device 120 for filtration.

Referring to fig. 1, in an embodiment of the present application, the filtering apparatus 120 may include a plurality of strainers 121 and a plurality of liquid inlet pipes 122, an inlet of each liquid inlet pipe 122 is connected to the second end 132, and an outlet of each liquid inlet pipe 122 leads to the strainers 121 in a one-to-one correspondence. In the embodiment of the present application, the filter 121 may be a filter cartridge, for example, a filter bag. In the embodiment of the present application, the filtering rate may be increased by providing a plurality of filters 121.

In an embodiment of the present application, the filtering device 120 may be provided with a filtered water outlet, which may be connected with the settling vessel 111. Thus, the filtered water filtered by the filtering device 120 can be transferred to the settling vessel 111, and the filtered water can be secondarily purified by the settling vessel 111. Further, since the cleanliness of the filtered water is generally higher than the cleanliness of the sewage transferred to the filter device 120, the sewage in the settling vessel 111 can be diluted with the filtered water transferred to the settling vessel 111.

In an embodiment of the present application, the sewage treatment system 100 may further include: a dewatering device 140; the dehydration apparatus 140 may be used to dehydrate the residue filtered by the filtering apparatus 120. In the embodiment of the present application, in the case that the filter 121 is a filter bag, the filtered filter residue may be contained in the filter bag, and the filter bag and the filter residue may be disposed in the dewatering device 140 together, so as to dewater the filter residue.

In the embodiment of the present application, the dewatering device 140 is provided with a dewatering outlet, which is connected to the settling vessel 111. Thus, the removed water from the dewatering device 140 can be sent back to the settling vessel 111, and the returned removed water can be purified again in the settling vessel 111 along with the next batch of wastewater (e.g., wastewater).

In addition, because the temperature of the dewatering water is generally lower than the temperature of the sewage conveyed to the settling container 111, the dewatering water which flows back into the settling container 111 can be used for cooling the high-temperature sewage which just enters the settling container 111, so that the settling container 111 is prevented from containing the high-temperature sewage for a long time and the service life is shortened; meanwhile, the refluxed water removed keeps the bottom of the settling vessel 111 wet, which can reduce the scaling phenomenon at the bottom of the settling vessel 111 before the next batch of wastewater enters. Referring to fig. 1 and 2, in the embodiment of the present application, the number of the turbid liquid outlet 1112 may be plural, and the plural turbid liquid outlets 1112 may be arranged in sequence in the height direction of the sewage treatment system 100. The number of the second discharge pipes 113 and the number of the second valves are equal to the number of the turbid liquid outlets 1112. The second valves are disposed in the second discharge pipe 113 in one-to-one correspondence, and the turbid liquid outlets 1112 are connected to the second discharge pipe 113 in one-to-one correspondence.

Thus, in the embodiment of the present application, when the amount of the contaminated water contained in the settling vessel 111 is large, the second discharge pipe 113 having a high position may be opened, so that the turbid liquid may be discharged using the opened second discharge pipe 113. When the amount of wastewater contained in the settling vessel 111 is small, the second discharge pipe 113, which is located at a lower position, may be opened, so that the turbid liquid is discharged using the opened second discharge pipe 113. In addition, the second discharge pipe 113 may be opened in the order from the top to the bottom, so that the turbid liquid with higher purity may be discharged from the precipitation vessel 111 before the turbid liquid with lower purity.

Referring to fig. 1, in the embodiment of the present application, the settling vessel 111 may further be provided with a supernatant outlet 1113, and the settling device 110 may further include a fourth discharge pipe 114 and a third valve, the third valve may be provided on the fourth discharge pipe 114, the third valve may be used to control the on/off of the fourth discharge pipe 114, and the supernatant outlet 1113 is connected to the fourth discharge pipe 114. Thus, the supernatant may be discharged from the settling vessel 111 by opening the fourth discharge pipe 114. For example, in the embodiment of the present application, the supernatant may be first output from the settling vessel 111, and then the turbid liquid and the muddy water may be sequentially output from the settling vessel 111.

Referring to fig. 3, in an embodiment of the present application, the fourth discharge pipe 114 may include a third end portion 1141, the third end portion 1141 extends into the settling vessel 111, the third end portion 1141 is disposed upward along a height direction of the sewage treatment system 100, and the supernatant outlet 1113 is disposed at a region where the third end portion 1141 is located. Therefore, the supernatant can be output from the sedimentation container 111 along the upward third end 1141 under the action of gravity, and the problem that the flowing supernatant is easy to disturb the liquid in the sedimentation container 111 to mix the supernatant with the turbid liquid in the process of outputting the supernatant can be improved.

In the embodiment of the application, the supernatant can be output from the sedimentation container 111 under the action of gravity, so that the flow of the supernatant can be stable, and the problem that the supernatant and the turbid liquid are mixed due to the disturbance of the liquid in the sedimentation container 111 caused by the flowing supernatant in the process of outputting the supernatant can be further improved.

Referring to fig. 1 and 3, in an embodiment of the present disclosure, the number of the supernatant outlets 1113 may be multiple, the multiple supernatant outlets 1113 are sequentially arranged along a height direction of the sewage treatment system 100, the number of the fourth discharge pipes 114 and the number of the third valves are equal to the number of the supernatant outlets 1113, the third valves are correspondingly arranged on the fourth discharge pipes 114, and the supernatant outlets 1113 are correspondingly connected to the fourth discharge pipes 114.

Further, referring to fig. 1 and 2, in the embodiment of the present application, the number of the turbid liquid outlet 1112 may be plural, and the plural turbid liquid outlets 1112 are sequentially arranged along the height direction of the sewage treatment system 100. The number of the second discharge pipes 113 and the number of the second valves are equal to the number of the turbid liquid outlets 1112, the second valves are disposed in the second discharge pipes 113 in a one-to-one correspondence, and the turbid liquid outlets 1112 are connected to the second discharge pipes 113 in a one-to-one correspondence.

In the height direction of the sewage treatment system 100, the supernatant outlet 1113 at the highest position is located higher than the turbid liquid outlet 1112 at the highest position, and the supernatant outlet 1113 at the lowest position is located lower than the turbid liquid outlet 1112 at the highest position. That is, the height of the supernatant outlet 1113 located at the highest position among all the supernatant outlets 1113 may be higher than the height of the turbid liquid outlet 1112 located at the highest position among all the turbid liquid outlets 1112. Among all the supernatant outlets 1113, the supernatant outlet 1113 located at the lowest position may have a lower height than the turbid liquid outlet 1112 located at the highest position among all the turbid liquid outlets 1112.

Thus, if the wastewater level in the settling vessel 111 is low, the supernatant and the turbid liquid level are also low, and the supernatant can be output from the settling vessel 111 through the supernatant outlet 1113 at a lower position, and the turbid liquid can be output from the settling vessel 111 through the turbid liquid outlet 1112 at a lower position. Therefore, when the volume or concentration of the sewage in the settling vessel 111 changes, the supernatant can be output from the settling vessel 111 by flexibly selecting the supernatant outlet 1113 for outputting the supernatant; the turbid liquid can be discharged from the precipitation vessel 111 by flexibly selecting the turbid liquid outlet 1112 for discharging the turbid liquid.

In an embodiment of the present application, the sewage treatment system 100 may further include: a neutralization tank 150; the supernatant outlet 1113 is connected to the neutralization tank 150 through a fourth discharge pipe 114. The neutralization pond 150 may be a water treatment structure for neutralizing acidic or alkaline wastewater. Alternatively, the fourth discharge pipe 114 may include a fourth end portion, and the fourth end portion may be connected to the neutralization tank 150, so that the supernatant may be transferred to the neutralization tank 150 using the fourth discharge pipe 114.

In an embodiment of the present application, the sewage treatment system 100 may further include a transfer pump, and the transfer pump may be connected to the third discharge pipe 130. In this way, the turbid liquid and muddy water transferred into the third discharge pipe 130 can be transferred to the filter device 120 by the transfer pump.

In an embodiment of the present application, the settling vessel 111 may be provided with a contaminated water input port, a first dosing port, and a first observation window. The sewage to be treated can be conveyed into the sedimentation container 111 through the sewage inlet for sedimentation treatment. In the embodiment of the present application, chemicals for purifying sewage may be injected into the settling vessel 111 through the first injection port. In the embodiment of the present application, the height of the liquid level in the settling vessel 111 may be observed through the first observation window, and whether the sewage in the settling vessel 111 is separated into the supernatant layer, the turbid liquid layer, and the bottom muddy water layer may be observed.

In an embodiment of the present application, the settling device 110 may include a first stirrer, and a first stirring part of the first stirrer may be disposed inside the settling vessel 111. Thus, the sewage and the added chemical in the settling vessel 111 can be stirred by the first stirrer.

In an embodiment of the present application, the neutralization tank 150 may be provided with a second dosing port and a second observation window. The neutralization tank 150 may include a second stirrer, and a second stirring part of the second stirrer may be disposed in the neutralization tank 150. In this way, the sewage and the added chemicals in the neutralization tank 150 can be stirred by the second stirrer.

In this way, in the embodiment of the present application, the sewage may be conveyed into the sedimentation device 110 for sedimentation treatment, and the sewage may be sequentially divided into a supernatant layer, a turbid liquid layer, and a bottom muddy water layer from top to bottom in the sedimentation device 110. Illustratively, the supernatant may first be exported. The second valve can be opened and the first valve closed, and the turbid liquid can be discharged by the second discharge pipe 113. After the output of the turbid liquid is completed, the second valve may be closed, the first valve may be opened, and the turbid liquid may be output by using the first discharge pipe 112.

In the embodiment of the application, the opening and closing of the first valve and the second valve can be controlled as required, so that the turbid liquid and the muddy water can be output as required, and the corresponding problem in the related art that the muddy water is output firstly and the turbid liquid can be output only after the muddy water is output is solved.

In addition, the sedimentation container 111 of the sewage treatment system 100 provided by the embodiment of the present application is provided with the bottom outlet 1111 and the turbid liquid outlet 1112, which can be respectively used for outputting the muddy water and the turbid liquid, so as to solve the problem that in the related art, the muddy water and the turbid liquid are both output from the bottom outlet, which may cause certain influence on the transportation or treatment of the muddy water and the turbid liquid.

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.

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

Claims (10)

1. A wastewater treatment system, comprising: a precipitation device (110);

the precipitation device (110) comprises: a sedimentation container (111), a first discharge pipe (112), a second discharge pipe (113), a first valve and a second valve,

the first valve is arranged on the first discharge pipe (112), the first valve is used for controlling the on-off of the first discharge pipe (112), the second valve is arranged on the second discharge pipe (113), the second valve is used for controlling the on-off of the second discharge pipe (113),

sedimentation container (111) are provided with bottom export (1111) and turbid liquid export (1112) on sewage treatment system's direction of height, the position of bottom export (1111) is less than the position of turbid liquid export (1112), bottom export (1111) with first discharge pipe (112) are connected, turbid liquid export (1112) with second discharge pipe (113) are connected.

2. The sewage treatment system according to claim 1, further comprising a third discharge pipe (130), an end of the first discharge pipe (112) remote from the settling vessel (111) and an end of the second discharge pipe (113) remote from the settling vessel (111) being commonly communicated to the third discharge pipe (130).

3. The wastewater treatment system of claim 1, further comprising: -a filtering device (120) and-a third discharge pipe (130), the third discharge pipe (130) being provided with a first end (131) and a second end (132), the first discharge pipe (112) and the second discharge pipe (113) being connected to the first end (131), the second end (132) being connected to the filtering device (120).

4. The wastewater treatment system according to claim 3, wherein the filtering device (120) comprises a plurality of filters (121) and a plurality of liquid inlet pipes (122), wherein an inlet of each liquid inlet pipe (122) is connected with the second end portion (132), and an outlet of each liquid inlet pipe (122) leads to the filters (121) in a one-to-one correspondence.

5. Sewage treatment system according to claim 3, wherein said filtering means (120) is provided with a filtered water outlet connected to said settling container (111).

6. The wastewater treatment system of claim 3, further comprising: a dewatering device (140); the dehydration device (140) is used for dehydrating filter residues filtered by the filtering device (120);

the dehydration device (140) is provided with a dehydrated water outlet, and the dehydrated water outlet is connected with the sedimentation container (111).

7. The sewage treatment system of claim 1, wherein the number of the turbid liquid outlets (1112) is plural, the plural turbid liquid outlets (1112) are sequentially arranged along the height direction of the sewage treatment system, the number of the second discharge pipes (113) and the number of the second valves are equal to the number of the turbid liquid outlets (1112), the second valves are correspondingly arranged on the second discharge pipes (113), and the turbid liquid outlets (1112) are correspondingly connected with the second discharge pipes (113).

8. The wastewater treatment system according to claim 1, wherein the sedimentation container (111) is further provided with a supernatant outlet (1113), the sedimentation device (110) further comprises a fourth discharge pipe (114) and a third valve, the third valve is arranged on the fourth discharge pipe (114), the third valve is used for controlling the on-off of the fourth discharge pipe (114), and the supernatant outlet (1113) is connected with the fourth discharge pipe (114).

9. The wastewater treatment system according to claim 8, wherein the fourth discharge pipe (114) comprises a third end portion (1141), the third end portion (1141) extends into the sedimentation container (111), the third end portion (1141) is disposed upward along a height direction of the wastewater treatment system, and the supernatant outlet (1113) is disposed in a region where the third end portion (1141) is located.

10. The sewage treatment system according to claim 8, wherein the number of the supernatant outlets (1113) is plural, the plural supernatant outlets (1113) are sequentially arranged along a height direction of the sewage treatment system, the number of the fourth discharge pipes (114) and the number of the third valves are equal to the number of the supernatant outlets (1113), the third valves are correspondingly arranged on the fourth discharge pipes (114), and the supernatant outlets (1113) are correspondingly connected with the fourth discharge pipes (114);

the number of the turbid liquid outlets (1112) is multiple, the multiple turbid liquid outlets (1112) are sequentially arranged along the height direction of the sewage treatment system, the number of the second discharge pipes (113) and the number of the second valves are equal to the number of the turbid liquid outlets (1112), the second valves are correspondingly arranged in the second discharge pipes (113), and the turbid liquid outlets (1112) are correspondingly connected with the second discharge pipes (113);

in the height direction of the sewage treatment system, the position of the supernatant outlet (1113) at the highest position is higher than the position of the turbid liquid outlet (1112) at the highest position, and the position of the supernatant outlet (1113) at the lowest position is lower than the position of the turbid liquid outlet (1112) at the highest position.

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