CN207775014U - Domestic sewage processing system and sewage disposal system - Google Patents

Abstract

The utility model provides a domestic sewage treatment system and a sewage treatment system, belonging to the technical field of sewage treatment. A domestic sewage treatment system, including a regulating tank, a biochemical treatment tank, a sedimentation tank, a disinfection tank, a regulating device, an aeration device and a dosing device, the regulating tank, the biochemical treatment tank, the sedimentation tank and the disinfection tank are connected in sequence, and the regulating tank is connected to There is a water inlet pipe, and the disinfection tank is connected with an outlet pipe. The aeration device includes the first aeration device, the second aeration device and the third aeration device, and the dosing device includes the first dosing device and the second dosing device; the bottom of the adjustment tank is provided with the first aeration device and Adjusting device, the bottom of the biochemical treatment tank is provided with a second aeration device and the first dosing device, the bottom of the disinfection tank is provided with a third aeration device, and the liquid inlet of the sedimentation tank is provided with a second dosing device. The system has good treatment effect and strong controllability, and the treated water can be used in industrial production.

Description

Domestic sewage treatment system and sewage treatment system

technical field

The utility model relates to the technical field of sewage treatment, in particular to a domestic sewage treatment system and a sewage treatment system.

Background technique

There are two major problems in my country's "water": one is the shortage of water resources, and the other is serious water pollution. According to monitoring, the national wastewater discharge increased from 31.5 billion tons in 1980 to 63.1 billion tons in 2002. Groundwater in most cities is polluted to a certain extent, and it tends to get worse year by year. The increasingly serious water pollution not only reduces the use function of water bodies, further exacerbates the contradiction of water shortage, but also seriously threatens the drinking water safety and health of urban residents. In order to alleviate the severe water situation: First, water conservation is given priority. The second is pollution control. The third is multi-channel open source. Countries around the world are now turning to the development of non-traditional water resources. Non-traditional water resources include: rainwater, recycled sewage, seawater, and aerial water.

Utility model content

Aiming at the deficiencies of the prior art, the utility model proposes a domestic sewage treatment system, which has good treatment effect and strong controllability, and the treated water can be applied to industrial production.

The utility model also proposes a sewage treatment system, which has good treatment effect and strong controllability, and the treated water can be applied to industrial production.

The utility model is achieved in that:

A domestic sewage treatment system, including a regulating tank, a biochemical treatment tank, a sedimentation tank, a disinfection tank, a regulating device, an aeration device and a dosing device, the regulating tank, the biochemical treatment tank, the sedimentation tank and the disinfection tank are connected in sequence, and the regulating tank is connected to There is a water inlet pipe, and the disinfection pool is connected with an outlet pipe.

The aeration device includes the first aeration device, the second aeration device and the third aeration device, and the dosing device includes the first dosing device and the second dosing device; the bottom of the regulating tank is provided with the first aeration device and Adjusting device, the bottom of the biochemical treatment tank is provided with a second aeration device and the first dosing device, the bottom of the disinfection tank is provided with a third aeration device, and the liquid inlet of the sedimentation tank is provided with a second dosing device.

Further, in a preferred embodiment of the present utility model, the first aeration device includes a first aeration pipe, several first aerators arranged in the first aeration pipe, and the adjustment device includes an acid pipe and an alkali pipe , the acid pipe and the lye pipe are respectively arranged on both sides of the first aeration pipe, and the acid pipe and the lye pipe are provided with a number of liquid outlet holes, and the liquid outlet direction of the liquid outlet hole is consistent with the aeration of the first aerator. The air direction is the same.

Further, in a preferred embodiment of the present utility model, the first aerator includes a diaphragm, a support tray and a gland, the diaphragm is in the shape of a spherical crown, the diaphragm includes a raised working part and a connecting part, and the connecting part and the raised The edge of the raised working part is connected, the connecting part is sleeved on the support tray, the raised working part protrudes away from the supporting tray, the middle part of the raised working part is provided with an air outlet, the supporting tray is connected with the gland, and the gland is connected with the second An aeration pipe is connected, and the middle part of the gland and the support tray are provided with ventilation holes.

Further, in a preferred embodiment of the present invention, the lower part of the outer wall of the support tray is provided with external threads, and the lower part of the inner wall of the gland is provided with internal threads, and the external threads and internal threads cooperate with each other to make the support tray and the gland detachably connected .

Further, in a preferred embodiment of the present utility model, the first dosing device includes a dosing tank, a dosing pipe and a metering pump, the dosing tank is connected to the dosing pipe, and the dosing pump is arranged between the dosing tank and the dosing pipe between.

Further, in a preferred embodiment of the present utility model, a check valve is provided at the end of the dosing pipe away from the metering pump.

Further, in a preferred embodiment of the present utility model, the second aeration device includes a second aeration pipe, and the medicine feeding pipe is arranged side by side with the second aeration pipe.

Further, in a preferred embodiment of the present utility model, the disinfection pool is further provided with an ozone device, the third aeration device includes a third aeration pipe, and the ozone device is connected to the third aeration pipe.

Further, in a preferred embodiment of the present utility model, a mud discharge hole is provided at the bottom of the sedimentation tank.

A sewage treatment system, including the above-mentioned domestic sewage treatment system.

The beneficial effect of above-mentioned scheme:

A domestic sewage treatment system provided by an embodiment of the utility model includes a regulating tank, a biochemical treatment tank, a sedimentation tank, a disinfection tank, a regulating device, an aeration device and a dosing device, and the aeration device includes a first aeration device, a second The second aeration device and the third aeration device, the dosing device includes a first dosing device and a second dosing device.

The bottom of the regulating tank is equipped with a first aeration device and a regulating device, and the two cooperate with each other. The aeration effect of the first aerating device drives the lye or acid in the regulating device to disperse in the regulating tank, making it more effective for domestic sewage. The effect is more uniform, avoiding uneven effect and uneven pH adjustment to affect the quality of biological treatment. The bottom of the biochemical treatment tank is equipped with a second aeration device and a first dosing device. The aeration effect of the second aeration device makes the medicament in the first dosing device more evenly dispersed in the biochemical treatment tank. There is no need to add a stirring device, etc., reducing costs. A third aeration device is provided at the bottom of the disinfection tank to improve the disinfection effect of the disinfection tank. The liquid inlet of the sedimentation tank is equipped with a second dosing device, which is evenly mixed with domestic sewage to improve the sedimentation effect.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the schematic flow sheet of the domestic sewage treatment system that the utility model embodiment 1 provides;

Fig. 2 is the structural representation of the domestic sewage treatment system that the utility model embodiment 1 provides;

Fig. 3 is a partial structural schematic diagram of the first aeration device and the regulating device provided by Embodiment 1 of the present utility model;

Fig. 4 is a schematic structural view of the aerator provided by Embodiment 1 of the present invention.

Icons: 100-domestic sewage treatment system; 101-inlet pipe; 103-outlet pipe; 110-regulating tank; 1111-acid pipe; 1113-lye pipe; 1115-pH detector; 1117-outlet hole; -biochemical treatment tank; 130-sedimentation tank; 140-disinfection tank; 141-ozone device; 151-first aeration device; 153-second aeration device; 1531-second aeration pipe; 1533-second aeration 155-the third aeration device; 1551-the third aeration pipe; 160-the first aeration pipe; 170-the first aerator; 171-diaphragm; 1711-raised working part; 1713-vent hole ;1715-connection; 173-support tray; 1731-external thread; 175-gland; 1751-internal thread; 177-air vent; 181-first dosing device; ; 1815-metering pump; 183-second dosing device; 190-control device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Below in conjunction with the accompanying drawings, some embodiments of the present utility model will be described in detail. In the present utility model, all embodiments, implementation modes and features of the present utility model can be combined with each other under the condition of no contradiction or conflict. In the present utility model, conventional equipment, devices, parts, etc. can be purchased commercially, or can be made by oneself according to the content disclosed in the present utility model. In this utility model, in order to highlight the key points of this utility model, some conventional operations, equipment, devices, and components are omitted, or simply described.

Example 1

Please refer to Fig. 1, the present embodiment provides a kind of domestic sewage treatment system 100, comprises adjustment tank 110, biochemical treatment tank 120, sedimentation tank 130, disinfection tank 140, regulating device, aeration device, dosing device, ozone device 141 and The control device 190 , the regulation tank 110 , the biochemical treatment tank 120 , the sedimentation tank 130 and the disinfection tank 140 are connected in sequence, and the control device 190 is used to control the regulation tank 110 , the biochemical treatment tank 120 , the sedimentation tank 130 and the disinfection tank 140 . The regulating tank 110 is connected with a water inlet pipe 101 , and the disinfection tank 140 is connected with a water outlet pipe 103 .

The aeration device comprises the first aeration device 151, the second aeration device 153 and the third aeration device 155, the dosing device comprises the first dosing device 181 and the second dosing device 183, and the bottom of the regulating tank 110 is provided with The first aeration device 151 and regulating device, the bottom of the biochemical treatment tank 120 is provided with the second aeration device 153 and the first dosing device 181, the bottom of the disinfection tank 140 is provided with the third aeration device 155 and the ozone device 141, The liquid inlet of the sedimentation tank 130 is provided with a second dosing device 183 .

In this embodiment, the first aeration device 151 , the second aeration device 153 and the third aeration device 155 have the same structure, and the first dosing device 181 and the second dosing device 183 have the same structure. In other embodiments of the present invention, their structures may not be completely the same, and the present invention does not limit them.

The domestic sewage is firstly pretreated by screen filtration, etc., and then transported to the regulating tank 110 by the water inlet pipe 101 . Domestic sewage is mainly metabolic waste and food residue, containing microorganisms, pathogenic bacteria and viruses, and the utility model adopts a biological treatment method to treat them. When biologically treating sewage, there is a certain requirement for the pH value of the sewage, generally between 6 and 9. Therefore, before the domestic sewage enters the biochemical treatment tank 120, the pH value needs to be adjusted in the regulating tank 110.

Please refer to Fig. 2 and Fig. 3, in the present embodiment, regulating pond 110 is rectangular body, and the bottom of regulating pond 110 is provided with the first aeration device 151 and regulating device (not shown), and regulating pond 110 is away from biochemical treatment pond One side of 120 is connected with water inlet pipe 101 . The first aeration device 151 includes a first aeration pipe 160, a number of first aerators 170 arranged in the first aeration pipe 160, and the adjustment device includes an acid pipe 1111, an alkali pipe 1113 and a pH value detector 1115, The acid pipe 1111 and the lye pipe 1113 are respectively arranged on both sides of the first aeration pipe 160, the acid pipe 1111 and the lye pipe 1113 are all provided with a number of outlet holes 1117, and the outlet direction of the outlet holes 1117 is the same as that of the first aeration pipe 1113. The aeration direction of an aerator 170 is consistent. The pH value detector 1115 is installed in the adjustment tank 110 to detect the pH value of the domestic sewage in the adjustment tank 110 in real time. Preferably, several first aerators 170 are equidistantly arranged on the first aeration pipe 160 , and several liquid outlet holes 1117 are equidistantly arranged on the acid pipe 1111 and the lye pipe 1113 . In this embodiment, both the first aeration device 151 and the regulating device are electrically connected to the control device 190, and the control device 190 controls the aeration volume and aeration time of the first aeration device 151, according to the detection of the pH value detector 1115 The data regulates the output of the acid solution pipe 1111 and the alkali solution pipe 1113.

Both the first aeration device 151 and the regulating device are arranged at the bottom, and the two cooperate with each other. When the regulating device inputs acid liquid or lye into the regulating tank 110, due to the aeration effect of the first aerator 170, the acid liquid is Or the lye rapidly disperses and moves in the regulating tank 110 to make its effect on the domestic sewage more uniform, and avoid uneven effect and uneven pH value adjustment from affecting the quality of biological treatment. The structure is simple, the operation is convenient and flexible, no need to add a stirring device, etc., and the cost is reduced.

Please refer to Fig. 4, in this embodiment, the first aerator 170 includes a membrane 171, a support tray 173 and a gland 175, the membrane 171 is in the shape of a spherical crown, and the membrane 171 includes a raised working part 1711 and a connecting part 1715, the connecting part 1715 is connected with the edge of the raised working part 1711, the connecting part 1715 is sleeved on the support tray 173, the raised working part 1711 protrudes away from the supporting tray 173, and the middle part of the raised working part 1711 is provided with The air outlet 1713, the support tray 173 is connected with the gland 175, and the gland 175 communicates with the first aeration pipe 160, and the middle of the gland 175 and the support tray 173 are both provided with air holes 177.

During work, the fan (not shown) feeds air into the first aeration pipe 160, and the air enters the first aerator 170 through the first aeration pipe 160, and the air outlet 1713 on the raised working part 1711 opens to the right Aeration of domestic sewage can produce microbubbles with a diameter of less than 3mm in the water. When the air supply is stopped, because the pressure between the diaphragm 171 and the support tray decreases, and the raised working part 1711 receives the pressure from the external domestic sewage and the resilience of the diaphragm 171 itself, the air outlet hole 1713 is closed, and the diaphragm 171 is compacted On the support tray to avoid the backflow of domestic sewage. When the first aeration device 151 performs intermittent aeration, the surface of the aeration membrane is not easy to deposit impurities, which has a longer service life and higher oxygenation efficiency than other first aeration devices 151, and is more suitable for biological treatment.

Further, the lower part of the outer wall of the support tray 173 is provided with an external thread 1731 , and the lower part of the inner wall of the gland 175 is provided with an internal thread 1751 , and the external thread 1731 and the internal thread 1751 cooperate with each other so that the support tray 173 and the gland 175 are detachably connected. The threaded connection makes the disassembly of the first aerator 170 more convenient.

After pH adjustment, the domestic sewage enters the biochemical treatment pool 120 from the adjustment pool 110 . In this embodiment, the bottom of the biochemical treatment tank 120 is provided with a second aeration device 153 and a first dosing device 181 . Specifically, the second aeration device 153 includes a second aeration pipe 1531 and several second aerators 1533 arranged on the second aeration pipe 1531, and the first dosing device 181 includes a dosing tank 1811, a dosing pipe 1813 It is connected with the metering pump 1815, the medicine adding tank 1811 is connected with the medicine adding pipe 1813, and the metering pump 1815 is arranged between the medicine adding tank 1811 and the medicine adding pipe 1813. The end of the dosing pipe 1813 away from the metering pump 1815 is provided with a check valve (not shown) to prevent backflow. The dosing pipe 1813 and the second aeration pipe 1531 are arranged side by side. In this embodiment, the domestic sewage is subjected to aerobic treatment and anaerobic treatment as required.

In this embodiment, the second aeration device 153 and the first dosing device 181 are both arranged at the bottom, and the two cooperate with each other. When the first dosing device 181 adds biological agents to the biochemical treatment tank 120, due to the aeration The aeration effect of the device drives the biological agent to quickly disperse and move in the biochemical treatment tank 120, so that its effect on domestic sewage is more uniform and the treatment effect is improved. The structure is simple, the operation is convenient and flexible, no need to add a stirring device, etc., and the cost is reduced.

After the domestic sewage is biologically treated, it flows from the biochemical treatment tank 120 into the sedimentation tank 130 for sedimentation. In this embodiment, the liquid inlet of the sedimentation tank 130 is provided with a second dosing device 183, so that the domestic sewage in the sedimentation tank 130 can be flocculated and sedimented more effectively. The bottom of the sedimentation tank 130 is provided with a mud discharge hole. The second dosing device 183 is installed at the liquid inlet, so that the domestic sewage is mixed with the added medicine when it enters the sedimentation tank 130. The mixing method is more uniform, and the sedimentation effect is prevented from being mixed by mixing in the later stage. After sedimentation, the sediment accumulated at the bottom of the sedimentation tank 130 is discharged through the mud discharge hole.

The settled domestic sewage enters the disinfection tank 140 from the sedimentation tank 130 for disinfection. In this embodiment, ozone is used for disinfection. In other embodiments of the present invention, chlorine dioxide can be added for disinfection, which is not limited in the present invention. One end of the disinfection tank 140 away from the sedimentation tank 130 is connected to the water outlet pipe 103 , and after the disinfection is completed, the treated water is discharged through the water outlet pipe 103 . The bottom of the disinfection pool 140 is provided with a third aeration device 155 and an ozone device 141 . The third aeration device 155 includes a third aeration pipe 1551 , and the ozone device 141 is connected to the third aeration pipe 1551 . The ozone is passed into the domestic sewage through the aeration device. Since the ozone is a gas and moves from bottom to top in the water, the disinfection of the domestic sewage in the disinfection tank 140 is more thorough and the effect is better.

This embodiment also provides a sewage treatment system (not shown) based on the domestic sewage treatment system 100 , including the domestic sewage treatment system 100 .

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A domestic sewage treatment system, characterized in that it comprises a regulating pond, a biochemical treatment pond, a settling pond, a disinfection pond, a regulating device, an aeration device and a dosing device, the regulating pond, the described biochemical treating pond, the The sedimentation tank and the disinfection tank are connected in sequence, the regulating tank is connected with a water inlet pipe, and the disinfection tank is connected with a water outlet pipe; The aeration device includes a first aeration device, a second aeration device and a third aeration device, and the dosing device includes a first dosing device and a second dosing device; the bottom of the regulating tank is provided with The first aeration device and the regulating device, the bottom of the biochemical treatment tank is provided with the second aeration device and the first dosing device, the bottom of the disinfection tank is provided with the third aeration device, the sedimentation tank The liquid inlet is provided with a second dosing device. 2. The domestic sewage treatment system according to claim 1, wherein the first aeration device comprises a first aeration pipe, a plurality of first aerators arranged in the first aeration pipe, the The regulating device includes an acid pipe and a lye pipe, the acid pipe and the lye pipe are respectively arranged on both sides of the first aeration pipe, the acid pipe and the lye pipe are both arranged There are several liquid outlet holes, and the liquid outlet direction of the liquid outlet holes is consistent with the aeration direction of the first aerator. 3. The domestic sewage treatment system according to claim 2, wherein the first aerator includes a diaphragm, a support tray and a gland, the diaphragm is in the shape of a spherical crown, and the diaphragm includes a convex A raised working part and a connecting part, the connecting part is connected to the edge of the raised working part, the connecting part is sleeved on the supporting tray, and the raised working part protrudes away from the supporting tray , the middle part of the raised working part is provided with an air outlet, the support tray is connected to the gland, the gland is connected to the first aeration pipe, and the middle part of the gland and the support tray All are provided with ventilation holes. 4. The domestic sewage treatment system according to claim 3, characterized in that, the lower part of the outer wall of the supporting tray is provided with an external thread, and the lower part of the inner wall of the gland is provided with an internal thread, and the external thread is connected to the The internal threads cooperate with each other so that the support tray is detachably connected to the gland. 5. The domestic sewage treatment system according to claim 1, wherein the first dosing device comprises a dosing tank, a dosing pipe and a metering pump, the dosing tank is connected to the dosing pipe, The metering pump is arranged between the medicine adding tank and the medicine adding pipe. 6. The domestic sewage treatment system according to claim 5, characterized in that a check valve is provided at the end of the dosing pipe away from the metering pump. 7. The domestic sewage treatment system according to claim 6, wherein the second aeration device comprises a second aeration pipe, and the dosing pipe is arranged side by side with the second aeration pipe. 8. The domestic sewage treatment system according to claim 1, wherein the disinfection tank is also provided with an ozone device, the third aeration device comprises a third aeration pipe, and the ozone device is connected to the first Three aeration pipe connections. 9. The domestic sewage treatment system according to claim 1, wherein a mud discharge hole is provided at the bottom of the sedimentation tank. 10. A sewage treatment system, characterized by comprising the domestic sewage treatment system according to any one of claims 1-9.