CN215756926U - Sewage treatment system - Google Patents

Abstract

The utility model discloses a sewage treatment system, which comprises a water inlet unit, a primary sedimentation unit, a primary treatment module, a secondary sedimentation unit, a secondary treatment module and a water outlet unit, wherein an outlet of the water inlet unit is connected with an inlet of the primary sedimentation unit, an outlet of the primary sedimentation unit is connected with an inlet of the primary treatment module, an outlet of the primary treatment module is connected with an inlet of the secondary sedimentation unit, an outlet of the secondary sedimentation unit is connected with an inlet of the secondary treatment module, the secondary treatment module is connected with the water outlet unit, the primary treatment module comprises a hydrolysis unit, an aeration unit and an aerobic unit, and the secondary treatment module comprises a filtering unit, a disinfection unit and a sludge discharge unit; the device has the characteristics of convenient transportation and installation, simple construction, convenient operation and management, high automation degree, strong impact resistance and good effluent quality.

Description

Sewage treatment system

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment system.

Background

With the development of society and the continuous progress of science and technology, urbanization is deepened day by day, the living density of people is increased day by day, domestic wastewater and other pollution discharge in people are increased day by day, the natural environment is greatly damaged, the surrounding living environment is also greatly influenced, and the sewage is generally wastewater which is polluted to a certain extent and is discharged from life and production. Sewage treatment refers to a process of purifying sewage in order to meet the water quality requirement of draining a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. Present sewage treatment plant structure is complicated, and manufacturing cost is higher, and difficult operation and maintenance cost are big, and among the sewage treatment process, often just remove the impurity in the sewage, and do not disinfect sewage, in case discharge to the external world, can serious polluted environment. For the sewage treatment of filiform impurity, the method adopted at present is filter screen filtration or manual salvage, and the adoption filter screen gets rid of filiform impurity and can cause the filter screen to block up, and manual salvage intensity is big, therefore sewage treatment system still needs further the intensification, adapts to the processing of multiple sewage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of designing an integrated sewage treatment system, which can realize the characteristics of convenient transportation and installation, simple construction, convenient operation and management, high automation degree, strong impact resistance and good effluent quality.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a sewage treatment system, includes into water the unit, just sinks unit, just handles the module, the unit of precipitating again, retreatment module and play water unit, the unit export of intaking links to each other with just sinking the unit entry, just sink the unit export and just handle the module entry and link to each other, just handle the module export and link to each other with the unit entry of precipitating again, it links to each other with retreatment module entry to precipitate the unit export again, retreatment module links to each other with a water unit, just handle the module including hydrolysis unit, aeration unit and aerobic unit, retreatment module includes filter unit, disinfection unit and row's mud unit.

As a further improvement of the above technical solution:

the water inlet unit comprises a water storage tank, a stirring piece arranged in the water storage tank, a feeder arranged on the upper portion of the water storage tank, a drain arranged at the bottom of the water storage tank and a turbine liquid outlet device, wherein the stirring piece comprises a main rod and an auxiliary rod vertically arranged on the main rod, a scraping brush is arranged at one end of the auxiliary rod, a plurality of cutting knives are sleeved on the auxiliary rod, the feeder comprises a feeding cavity and extrusion rollers arranged in the feeding cavity, bulges are arranged on the inner surface of the feeding cavity, the two extrusion rollers are oppositely arranged and move oppositely, and the distance between the two extrusion rollers is 2-5 mm; the vertical distance range between the extrusion roller and the wall of the feeding cavity is 2mm-5 mm.

The primary sedimentation unit comprises a filter vat gradually increased from top to bottom and filter screens arranged in the filter vat, the bottom of the filter vat is provided with a water inlet, multiple layers of filter screens are sequentially arranged in the filter vat in parallel, the filter screens are sequentially arranged from the position close to the water inlet to the position far away from the water inlet, and the mesh number of the filter screens is sequentially increased.

The unit includes the setting bucket again, sets up in the inside mixing rod and the dosing tank of setting bucket, the module of reprocessing sets up in the setting bucket below, the module of reprocessing sets up including the bucket of stewing, sets up in the straining layer again of the bucket top of stewing, sets up the medicine pump of advancing on the bucket of stewing. The flocculating agent is stored in the dosing tank and can promote the collision chance and the number of times of colloidal impurity particles in water and micelle hydrolyzed by the flocculating agent under the stirring action of the mixing rod. Under the action of flocculant, impurity particles in water lose stability first, then are mutually coagulated into particles with larger size, and then the sewage which is separated and treated by a secondary filtering layer enters a standing barrel for disinfection treatment.

The box body is arranged in the box body, and a plurality of installation positions are arranged in the box body. The installation position is used for accommodating each module of the sewage treatment system, and combines the traditional sewage treatment plant into movable integrated sewage treatment equipment, thereby having significance for building projects.

Still include wisdom water utilities platform, wisdom water utilities platform is including setting up a plurality of sensors in each unit in sewage treatment system. All units are provided with sensors, and the sensors transmit information data through the Internet of things and communicate with the intelligent water service platform. The water quality condition can be detected in real time, and the working state of the equipment can be reported. The background can debug or fault the device according to the data.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the water inlet unit of the sewage treatment system, the extrusion roller is arranged in the feeding cavity, the distance between the extrusion roller and the feeding cavity is adjusted, large impurities in sewage are subjected to fragmentation treatment and are conveyed to the water storage tank, the sewage is uniformly stirred by the stirring piece in the water storage tank, meanwhile, uncrushed impurities, particularly filamentous impurities, are cut and ground by the cutting knife on the stirring rod, and finally, the sewage is output through the turbine liquid outlet device at the bottom of the water storage tank. By utilizing the turbine liquid storage device, the water outlet blockage can be reduced, and the uniform water outlet pressure is ensured.

2. The primary settling unit of the sewage treatment system is provided with the filtering barrels which are gradually enlarged from top to bottom, the multistage filtering nets are arranged, and the bottom water inlet method is adopted, so that sludge is filtered layer by layer and stays at the bottom layer, sewage is easy to treat, and impurities in the sewage are basically intercepted.

3. The primary treatment module of the sewage treatment system disclosed by the utility model is used for treating organic matters and inorganic matters in sewage by combining the hydrolysis unit, the aeration unit and the aerobic unit.

4. The combination of the re-deposition unit and the re-treatment unit of the sewage treatment system utilizes the medicament to flocculate the sewage, filters the sewage to obtain purified water, and disinfects the purified water, so that the sewage treatment efficiency reaches over 80 percent.

5. The sewage treatment system adopts modularization and organic arrangement of the whole system in the box body, and has the advantages of simple and convenient transportation and installation and short construction time.

6. According to the sewage treatment system, each module is provided with the special sensor for real-time water quality detection, information is fed back to the intelligent water affair platform, the intelligent water affair platform monitors the sewage treatment process in real time and treats problems generated in the treatment process, and intelligent remote management of the sewage system is guaranteed.

7. According to the sewage treatment method, the integrated modular sewage treatment system is combined with the Internet of things monitoring to effectively treat the sewage, the process is mature and stable, the quality of the effluent is good and stable, the treatment benefit is high, the impact resistance of the water inlet unit and the water outlet unit is enhanced due to the design of the water inlet unit and the water outlet unit, the quality of the effluent can be kept unchanged under the conditions of sudden water quantity change and water quality change, man-machine-object organic cooperation is realized, the operation and the management are convenient, and the automation degree is high.

Drawings

FIG. 1 is a schematic view of the overall structure of a sewage treatment system according to the present invention;

FIG. 2 is a schematic flow diagram of a sewage treatment system according to the present invention;

FIG. 3 is a schematic structural diagram of a water inlet unit according to the present invention;

FIG. 4 is an enlarged view of A in FIG. 3;

fig. 5 is a schematic structural diagram of the box body of the present invention.

Reference numerals: 1. a water inlet unit; 2. a primary precipitation unit; 3. a primary processing module; 4. a re-deposition unit; 5. a reprocessing module; 6. a water outlet unit; 7. a box body; 11. a water storage tank; 12. a stirring member; 13. a feeder; 14. a sewage draining outlet; 15. a turbine liquid outlet device; 16. a sewage inlet; 21. a filter vat; 22. a filter screen; 41. a settling barrel; 42. a mixing rod; 43. a dosing box; 31. a hydrolysis unit; 32. an aeration unit; 33. an aerobic unit; 51. a filtration unit; 52. a sterilizing unit; 53. a sludge discharge unit; 61. a water quality detector; 121. a main rod; 122. an auxiliary rod; 123. scraping and brushing; 124. cutting; 125. a stirring motor; 131. a feed cavity; 132. a squeeze roll; 511. standing the barrel; 512. a secondary filtering layer; 513. a medicine inlet pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

The technical solutions of the embodiments of the present invention can be combined, and the technical features of the embodiments can also be combined to form a new technical solution.

Example 1

As shown in fig. 1 to 5, the sewage treatment system of the present embodiment includes a water inlet unit 1, a primary sedimentation unit 2, a primary treatment module 3, a re-precipitation unit 4, a re-treatment module 5 and a water outlet unit 6, wherein an outlet of the water inlet unit 1 is connected to an inlet of the primary sedimentation unit 2, an outlet of the primary sedimentation unit 2 is connected to an inlet of the primary treatment module 3, an outlet of the primary treatment module 3 is connected to an inlet of the re-precipitation unit 4, an outlet of the re-precipitation unit 4 is connected to an inlet of the re-treatment module 5, the re-treatment module 5 is connected to the water outlet unit 6, the primary treatment module 3 includes a hydrolysis unit 31, an aeration unit 32 and an aerobic unit 33, and the re-treatment module 5 includes a filtering unit 51, a disinfection unit 52 and a sludge discharge unit 53.

The water inlet unit 1 comprises a water storage tank 11, a stirring part 12 arranged in the water storage tank 11, a feeder 13 arranged on the upper part of the water storage tank 11, a sewage outlet 14 arranged at the bottom of the water storage tank 11 and a turbine liquid outlet 15, wherein the stirring part 12 comprises a main rod 121 and an auxiliary rod 122 vertically arranged on the main rod 121, the main rod 121 is driven by a stirring motor 125, one end of the auxiliary rod 122 is provided with a scraping brush 123, the scraping brush 123 is used for scraping sludge on the wall of the water storage tank 11 to assist in cleaning the water storage tank 11, the auxiliary rod 122 is sleeved with a plurality of cutting knives 124, the cutting knives 124 are movably sleeved on the auxiliary rod 122 and can rotate on the auxiliary rod 122, the filamentous impurities are not easy to wind on the stirring piece 12 due to the rotary cutting motion of the cutting knife 124, the feeder 13 comprises a feeding cavity 131 and extrusion rollers 132 arranged in the feeding cavity 131, the inner surface of the feeding cavity 131 is provided with a bulge, the two extrusion rollers 132 are oppositely arranged and move oppositely, and the distance between the two extrusion rollers is 2mm-5 mm; the squeeze rolls 132 are spaced apart from the wall of the feed chamber 131 by a vertical distance in the range of 2mm to 5 mm. The two squeezing rollers 132 are used for crushing and crushing large impurities, and prevent the impurities from blocking the water pipe.

The primary sedimentation unit 2 comprises a filter vat 21 gradually increasing from top to bottom and a filter screen 22 arranged in the filter vat 21, a water inlet is formed in the bottom of the filter vat 21, multiple layers of filter screens 22 are sequentially arranged in the filter vat 21 in parallel, the filter screen 22 is close to the water inlet and far away from the water inlet, and the mesh number of the filter screen is sequentially increased. A large amount of impurities entering the bottom of the water can be settled, other impurities are finally settled on the bottom layer through the filtering of the multilayer filter screen, sludge is discharged from the bottom, water is discharged from the upper part of the filter vat 21, and visible impurities are basically removed through the sewage of the primary settling unit 2.

The re-deposition unit 4 comprises a settling barrel 41, a mixing rod 42 and a dosing tank 43 which are arranged inside the settling barrel 41, the re-treatment module 5 is arranged below the settling barrel 41, and the re-treatment module 5 comprises a standing barrel 511, a re-filtering layer 512 arranged above the standing barrel 511 and a medicine inlet pump 513 arranged on the standing barrel 511. The storage in the dosing tank 43 is a flocculating agent, the flocculating agent is uniformly distributed in the sewage under the stirring and mixing action of the mixing rod 42, and the micro particle impurities in the sewage collide and flocculate into a whole.

The device also comprises a box body 7 and movable wheels arranged at the bottom of the box body 7, and a plurality of mounting positions are arranged in the box body 7. The installation position is used for installing each module of the sewage treatment system.

Still include wisdom water utilities platform 8, wisdom water utilities platform 8 is including setting up a plurality of sensors in each unit in sewage treatment system. The sensor reports data signals with the intelligent water affair platform 8 in real time, the sewage treatment state and the equipment running state are fed back in time, and when a fault occurs, the intelligent water affair platform 8 is stopped in time to arrange a worker to carry out fault treatment and debugging.

The sewage treatment method comprises the following steps:

step S1, introducing the original sewage into the water inlet unit 1 from the sewage inlet 16, crushing large impurities in the sewage through the water inlet unit 1, rotationally stirring and crushing and cutting filamentous impurities which cannot be crushed in the sewage through the cutting knife 124, stirring and cutting for 10-20 min, introducing the sewage into the primary sedimentation unit 2 after treatment, filtering through the multi-layer filter screen 22 to obtain primary treated sewage, and collecting sludge generated by the primary treated sewage; compared with the original sewage, the primary sewage is removed with all large impurities and 80 percent of sludge.

Step S2, introducing the primary treated sewage into a primary treatment module 3, treating the primary treated sewage by a hydrolysis tank, an aeration tank and an aerobic tank to remove organic matters and inorganic salts in the primary treated sewage to obtain secondary treated sewage, and collecting sludge generated in the treatment process; the content of organic matters and inorganic matters in the secondary treatment sewage is less than 3.6 percent.

Step S3, introducing the secondary treatment sewage into a re-precipitation unit 4, adding a flocculating agent, stirring, introducing the sewage and the floccules into a filtering unit 51 of a re-treatment module 5, separating to obtain tertiary treatment sewage, and collecting the floccules; the sludge content of the third-time treated sewage is 0.1 percent, and the organic and inorganic matter content is less than 0.12 percent.

And step S4, introducing the three-time treated sewage into the disinfection unit 52 of the retreatment module 5 for disinfection treatment to obtain four-time treated sewage.

And S5, introducing the four-time treated sewage into the water outlet unit 6, detecting the water quality by the water quality detector 61, discharging the sewage when the water quality is qualified, and discharging the sewage when the water quality is unqualified, introducing the four-time treated sewage into the primary sedimentation unit 2, repeating the steps from S2 to S4, simultaneously conveying detection information to the intelligent water affair platform by each sensor, and if the water quality detection result of the four-time treated sewage is unqualified or the intelligent water affair platform receives fault information conveyed by the sensor, troubleshooting the intelligent water affair platform arranges personnel.

Example 2

The support African Wugan reaches a certain water plant project, the project is located in a remote area with extensive and rare land, normal domestic electricity cannot be guaranteed, and sewage treatment equipment cannot work normally. Therefore, the box body 7 with the solar panel is selected for direct delivery from China, the modularized sewage treatment system is convenient and fast to transport, and the installation is simple and the construction time is short after the sewage treatment system reaches Wuganda of other banks in the ocean. Because the whole system is integrated and movable, the water taking is convenient, and pollutants such as ammonia, phosphorus, complex organic matters and the like in water are effectively removed by utilizing the biological oxidation degradation. The following table is a Uganda water treatment comparison table.

Item	COD(mg/l)	BOD(mg/l)	SS(mg/l)	PH
					Quality of inlet water	460	300	280	10
Quality of effluent water	49	8	6	7.9
					Process parameters	≤50	≤20	≤10	7～8

By contrast, the treated sewage meets the process requirements, and clean resources such as wind energy, solar energy, water energy and the like can be used as energy supply for sewage treatment. The requirement of environmental protection is met, energy is saved, and the concept of sustainable development is met.

Although embodiments of the present invention 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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A sewage treatment system is characterized in that: comprises a water inlet unit (1), a primary sedimentation unit (2), a primary treatment module (3), a re-deposition unit (4), a re-treatment module (5) and a water outlet unit (6) which are connected in sequence; the primary treatment module (3) comprises a hydrolysis unit (31), an aeration unit (32) and an aerobic unit (33), and the secondary treatment module (5) comprises a filtering unit (51), a disinfection unit (52) and a sludge discharge unit (53).

2. The wastewater treatment system according to claim 1, wherein: the water inlet unit (1) comprises a water storage tank (11), a stirring part (12) arranged in the water storage tank (11), a feeder (13) arranged on the upper part of the water storage tank (11), a sewage draining outlet (14) arranged at the bottom of the water storage tank (11) and a turbine liquid outlet device (15), wherein the stirring part (12) comprises a main rod (121) and an auxiliary rod (122) vertically arranged on the main rod (121), one end of the auxiliary rod (122) is provided with a scraping brush (123), the auxiliary rod (122) is sleeved with a plurality of cutting knives (124), the feeder (13) comprises a feeding cavity (131) and extrusion rollers (132) arranged in the feeding cavity (131), the inner surface of the feeding cavity (131) is provided with bulges, the two extrusion rollers (132) are oppositely arranged and move in opposite directions, and the distance between the two extrusion rollers (132) is 2mm-5 mm; the vertical distance range of the extrusion roller (132) and the wall of the feeding cavity (131) is 2mm-5 mm.

3. The wastewater treatment system according to claim 1, wherein: just sink unit (2) and include from last filter vat (21) that down progressively increases and set up filter screen (22) in filter vat (21), filter vat (21) bottom sets up the water inlet, and multilayer filter screen (22) parallel arrangement is in filter vat (21) in proper order, filter screen (22) are from being close to the water inlet to keeping away from water inlet department, and its mesh number increases in proper order.

4. The wastewater treatment system according to claim 1, wherein: the re-deposition unit (4) comprises a settling barrel (41), a mixing rod (42) and a dosing tank (43) which are arranged inside the settling barrel (41), the re-deposition module (5) is arranged below the settling barrel (41), and the re-deposition module (5) comprises a standing barrel (511), a re-filtering layer (512) arranged above the standing barrel (511) and a medicine inlet pump (513) arranged on the standing barrel (511).

5. The wastewater treatment system according to claim 1, wherein: the sewage treatment system further comprises a box body (7), a plurality of movable wheels are arranged at the bottom of the box body (7), and a plurality of installation positions are arranged in the box body (7).

6. The wastewater treatment system according to claim 1, wherein: the sewage treatment system further comprises a smart water affair platform (8), wherein the smart water affair platform (8) comprises a plurality of sensors arranged in each unit of the sewage treatment system.

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