CN113387478A - Wastewater pretreatment system and treatment method thereof - Google Patents
Wastewater pretreatment system and treatment method thereof Download PDFInfo
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- CN113387478A CN113387478A CN202110683287.2A CN202110683287A CN113387478A CN 113387478 A CN113387478 A CN 113387478A CN 202110683287 A CN202110683287 A CN 202110683287A CN 113387478 A CN113387478 A CN 113387478A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a wastewater pretreatment system and a treatment method thereof, relating to the technical field of wastewater pretreatment; in order to improve the effect of wastewater pretreatment; the pretreatment system comprises a screen filter, a wastewater adjusting tank, sludge treatment equipment and post-treatment equipment, wherein a liquid outlet of the screen filter is connected with a liquid inlet of the wastewater adjusting tank through a pipeline, a slag outlet of the screen filter is connected with screen material treatment equipment through a pipeline, a liquid outlet of the wastewater adjusting tank is connected with a wastewater concentration adjusting tank through a pipeline, and a liquid outlet of the wastewater concentration adjusting tank is connected with a primary sedimentation tank through a pipeline; the processing method of the pretreatment system comprises the following steps: the waste water is guided into the waste water adjusting tank after being preliminarily filtered by a grid mechanism in the screening tank, and the screened impurities are collected by the screening material treatment equipment. The invention can intercept and filter larger suspended matters and impurities in the wastewater by arranging the screening pool, and can ensure the subsequent treatment of the wastewater.
Description
Technical Field
The invention relates to the technical field of wastewater pretreatment, in particular to a wastewater pretreatment system and a wastewater pretreatment method.
Background
Along with the continuous development of society, can produce a large amount of waste water in industrial production, if the waste water directly can cause very big pollution to the environment without handling, waste water at present need at first through preliminary treatment, and preliminary treatment mainly includes treatment facilities such as grid, screen cloth, grit chamber, sand-water separator, needs sediment and neutralization to waste water simultaneously in the processing procedure to make waste water can reach the preliminary treatment standard.
Through retrieval, the Chinese patent with the application number of CN201910075044.3 discloses a pretreatment system and a pretreatment method for oily wastewater, wherein the pretreatment system comprises an oil product synthesis regulating tank, a comprehensive regulating tank, a biochemical treatment unit, a plurality of pretreatment tanks, a separation tank, a pretreatment water outlet tank and an anaerobic tank; the pretreatment method comprises the following steps: biochemical pretreatment; and (4) anaerobic treatment.
The pretreatment system and the pretreatment method for the oily wastewater in the patent have the following defects: in the process of treating the wastewater, impurities and suspended matters contained in the wastewater cannot be effectively treated.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a wastewater pretreatment system and a treatment method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wastewater pretreatment system, which comprises a sieve filter tank, a wastewater adjusting tank, sludge treatment equipment and post-treatment equipment, the liquid outlet of the sieve filter is connected with the liquid inlet of the wastewater adjusting tank through a pipeline, the slag outlet of the sieve filter is connected with a sieve material processing device through a pipeline, the liquid outlet of the wastewater adjusting tank is connected with a wastewater concentration adjusting tank through a pipeline, the liquid outlet of the wastewater concentration adjusting tank is connected with a primary sedimentation tank through a pipeline, the liquid outlet of the primary sedimentation tank is connected with a secondary sedimentation tank through a pipeline, the primary sedimentation tank and the secondary sedimentation tank are both provided with a sludge outlet, the sludge outlet of the primary sedimentation tank and the sludge outlet of the secondary sedimentation tank are both connected with the input end of sludge treatment equipment through pipelines, the liquid outlet of the secondary sedimentation tank is connected with a neutralization tank through a pipeline, and the liquid outlet of the neutralization tank is connected with the liquid inlet of the post-treatment equipment through a pipeline.
Preferably: the inside grid mechanism that is provided with of screening pond, inside rabbling mechanism and the aeration mechanism of being provided with of waste water equalizing basin, primary sedimentation tank and secondary sedimentation tank are inside all to be provided with flocculation mechanism.
Preferably: the neutralization pond comprises an acidic wastewater neutralization pond and an alkaline wastewater neutralization pond.
A method of treating a wastewater pretreatment system, comprising the steps of:
s1: primarily filtering the wastewater by using a grid mechanism in a screening pool, introducing the wastewater into a wastewater adjusting pool, and collecting the screened impurities by using screened material treatment equipment;
s2: accelerating the oxidation of the reducing substances by using a stirring mechanism and an aeration mechanism in the wastewater adjusting tank;
s3: the wastewater concentration adjusting tank is used for mixing the wastewater which enters and exits from the front and the back, so that the stability of the whole concentration of the wastewater is ensured;
s4: the method comprises the following steps of performing primary sedimentation on wastewater by using a flocculation mechanism in a primary sedimentation tank, performing secondary sedimentation on the wastewater by using a secondary sedimentation tank, and guiding the precipitated sludge into sludge treatment equipment by using a sludge pump for filter pressing recovery;
s5: and respectively introducing the treated wastewater into an acidic wastewater neutralization tank and an alkaline wastewater neutralization tank for neutralization treatment according to different pH values, and introducing the treated wastewater into post-treatment equipment for subsequent treatment.
As a preferable aspect of the present invention: the grid mechanism in the step S1 adopts an arc-shaped grid, the grid is in a curved surface shape, the gap between grid bars is 50-100mm, and the screened material processing equipment cleans the screened material through a crushing mode.
As a preferable aspect of the present invention: the specification of the wastewater adjusting tank in the step S2 is 5 × 5M, the rotating speed of a stirring motor of the stirring mechanism is 200r/min, the aeration mechanism adopts mechanical aeration, and the aeration rate interval of the mechanical aeration is 100-.
Further: the screening and filtering treatment equipment in the S1 step comprises a mounting plate mounted on a grating mechanism main body, a servo motor is fixed on the outer wall of one side of the mounting plate through bolts, a rotating disc is fixed on an output shaft of the servo motor through bolts, a rocker is connected on the outer wall of one side of the rotating disc through a rotating shaft in a rotating mode, a support is connected on the outer wall of the rocker in a rotating mode, a mounting block is fixed on the outer wall of the inclined plane of the grating mechanism main body through bolts, a push rod is fixed on the outer wall of one side of the support through bolts, the outer wall of the circumference of the push rod is connected to the inner wall of the mounting block in a sliding mode, and a treatment assembly is fixed on the outer wall of one side of the push rod through bolts.
As a further scheme of the invention: the processing assembly comprises a collecting disc and a square frame, the square frame is fixed on the outer wall of one side of the pushing rod through bolts, the collecting disc is fixed on the outer wall of one side of the square frame through bolts, the outer wall of the bottom of the square frame is fixed with a scraper through bolts, the outer wall of one side of the mounting plate is fixed with a negative pressure generator and a collecting box through bolts, the output end of the negative pressure generator is connected to the outer wall of the top of the collecting box through a pipeline, and the outer wall of one side of the collecting box is connected to the outer wall of the top of the collecting disc through a three-way pipe.
As a still further scheme of the invention: the inner walls of two sides of the square-shaped frame are rotatably connected with the same rotating roller, more than two collecting holes are formed in the outer wall of the circumference of the rotating roller, more than two brushes are inserted into the outer wall of the circumference of the rotating roller, the outer wall of one side of the square-shaped frame is fixed with a fixing box through bolts, and one end, away from the collecting box, of the three-way pipe is fixed to the outer wall of one side of the fixing box through bolts.
The invention has the beneficial effects that:
1. can hold back the filtration to great suspended solid and debris in the waste water through being provided with the screening pond to can guarantee that follow-up handles waste water, can effectual reduction fluctuation and the impact load of organic matter in the processing procedure through being provided with the waste water equalizing basin, can carry out abundant even mixture between the waste water of business turn over around can guaranteeing through being provided with the waste water concentration equalizing basin, thereby can play the effect of random homogeneous.
2. Can deposit the impurity of the difficult soluble that contains in the waste water through being provided with primary sedimentation tank, can utilize the activated sludge process to carry out the secondary sedimentation through being provided with the secondary sedimentation tank and handle waste water, can be so that the pH value in the waste water can be up to standard through being provided with neutralization pond, utilize aftertreatment equipment can carry out the retreatment to the waste water after the preliminary treatment to make waste water can reach emission standard.
3. Can be used for filtering the impurity that contains in the waste water through being provided with grid mechanism main part, can drive the rolling disc through being provided with servo motor and rotate to make the catch bar can carry out the reciprocating motion of horizontal direction along the installation piece under the regulatory action of rocker, thereby make the processing assembly can carry out synchronous reciprocating motion, simultaneously because grid mechanism main part surface grid tray can rotate, thereby guarantee that the processing assembly can carry out the clearance of impurity to the different positions of grid tray.
4. Can strike off the adnexed impurity in grid mechanism main part surface through being provided with the scraper, can produce the negative pressure through being provided with negative pressure generator to make the impurity after the clearance can inhale to the collection incasement through the three-way pipe, thereby can utilize the collection case to collect impurity.
5. Can clean grizzly mechanism main part surface at the in-process of mouth style of calligraphy frame reciprocating motion through being provided with the live-rollers to can further reduce impurity and to grizzly mechanism main part surface adhere to, utilize the collection hole more than two simultaneously can absorb once more the impurity after the brush cleans, thereby can further guarantee to carry out the effect handled impurity.
Drawings
FIG. 1 is a schematic flow diagram of a wastewater pretreatment system in accordance with the present invention;
FIG. 2 is a schematic view of the overall installation structure of a screen material treatment device of the wastewater pretreatment system according to the present invention;
FIG. 3 is a schematic diagram of the overall structure of a screen treatment device of a wastewater pretreatment system according to the present invention;
FIG. 4 is a schematic side view of a screen treatment apparatus of a wastewater pretreatment system according to the present invention;
FIG. 5 is a schematic diagram of the overall structure of a cleaning assembly of a wastewater pretreatment system according to the present invention;
fig. 6 is a graph comparing the effect of cleaning impurities of the screen material processing device of the wastewater pretreatment system and the conventional mobile telescopic boom mechanical grating cleaning device.
In the figure: 1-grating mechanism main body, 2-fixed box, 3-rotating disc, 4-mounting plate, 5-rocker, 6-mounting block, 7-three-way pipe, 8-push rod, 9-support, 10-servo motor, 11-negative pressure generator, 12-collecting box, 13-collecting disc, 14-scraper, 15-collecting hole, 16-brush, 17-rotating roller and 18-square frame.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1:
a wastewater pretreatment system, as shown in figure 1, comprises a sieve filter, a wastewater adjusting tank, a sludge treatment device and a post-treatment device, the liquid outlet of the sieve filter is connected with the liquid inlet of the wastewater adjusting tank through a pipeline, the slag outlet of the sieve filter is connected with a sieve material processing device through a pipeline, the liquid outlet of the wastewater adjusting tank is connected with a wastewater concentration adjusting tank through a pipeline, the liquid outlet of the wastewater concentration adjusting tank is connected with a primary sedimentation tank through a pipeline, the liquid outlet of the primary sedimentation tank is connected with a secondary sedimentation tank through a pipeline, the primary sedimentation tank and the secondary sedimentation tank are both provided with a sludge outlet, the sludge outlet of the primary sedimentation tank and the sludge outlet of the secondary sedimentation tank are both connected with the input end of sludge treatment equipment through pipelines, the liquid outlet of the secondary sedimentation tank is connected with a neutralization tank through a pipeline, and the liquid outlet of the neutralization tank is connected with the liquid inlet of the post-treatment equipment through a pipeline; the screening and filtering tank can intercept and filter larger suspended matters and impurities in the wastewater, thereby ensuring the subsequent treatment of the wastewater, the wastewater adjusting tank can effectively reduce the fluctuation and impact load of organic matters in the treatment process, the wastewater concentration adjusting tank can ensure that the wastewater entering and exiting from the front and the back can be fully and uniformly mixed, thereby having the effect of random homogenization, precipitating the impurities which are not easy to dissolve and are contained in the waste water by arranging the primary sedimentation tank, the secondary sedimentation tank is arranged to carry out secondary sedimentation treatment on the wastewater by using an activated sludge method, through being provided with neutralization pond can be so that the pH value in the waste water can reach standard, utilize aftertreatment equipment can carry out retreatment to the waste water after the preliminary treatment to make waste water can reach emission standard.
A grid mechanism is arranged inside the screening and filtering tank, a stirring mechanism and an aeration mechanism are arranged inside the wastewater adjusting tank, and flocculation mechanisms are arranged inside the primary sedimentation tank and the secondary sedimentation tank; can handle the suspended solid in the screen filtering pond through being provided with grid mechanism, can avoid the sediment of solid through being provided with rabbling mechanism and aeration mechanism in waste water adjusting tank, can accelerate the oxidation of reducing substance simultaneously, can reduce soluble gas simultaneously, can accelerate the formation of sediment through being provided with flocculation mechanism.
The neutralization pond comprises an acidic wastewater neutralization pond and an alkaline wastewater neutralization pond; the acid waste water can be neutralized by arranging the acid waste water neutralizing tank, and the alkaline waste water can be neutralized by arranging the alkaline waste water neutralizing tank.
Example 2:
a method of treating a wastewater pretreatment system according to embodiment 1, comprising the steps of:
s1: primarily filtering the wastewater by using a grid mechanism in a screening pool, introducing the wastewater into a wastewater adjusting pool, and collecting the screened impurities by using screened material treatment equipment;
s2: accelerating the oxidation of the reducing substances by using a stirring mechanism and an aeration mechanism in the wastewater adjusting tank;
s3: the wastewater concentration adjusting tank is used for mixing the wastewater which enters and exits from the front and the back, so that the stability of the whole concentration of the wastewater is ensured;
s4: the method comprises the following steps of performing primary sedimentation on wastewater by using a flocculation mechanism in a primary sedimentation tank, performing secondary sedimentation on the wastewater by using a secondary sedimentation tank, and guiding the precipitated sludge into sludge treatment equipment by using a sludge pump for filter pressing recovery;
s5: and respectively introducing the treated wastewater into an acidic wastewater neutralization tank and an alkaline wastewater neutralization tank for neutralization treatment according to different pH values, and introducing the treated wastewater into post-treatment equipment for subsequent treatment.
The grid mechanism in the step S1 adopts an arc-shaped grid, the grid is in a curved surface shape, the gap between grid bars is 50-100mm, and the screened material processing equipment cleans the screened material through a crushing mode.
The specification of the wastewater adjusting tank in the step S2 is 5 × 5M, the rotating speed of a stirring motor of the stirring mechanism is 200r/min, the aeration mechanism adopts mechanical aeration, and the aeration rate interval of the mechanical aeration is 100-.
Example 3:
in order to improve the working efficiency of the grid mechanism, as shown in fig. 2-4, the screened material processing device in the step S1 includes a mounting plate 4 mounted on a main body 1 of the grid mechanism, a servo motor 10 is fixed on the outer wall of one side of the mounting plate 4 through a bolt, a rotating disc 3 is fixed on an output shaft of the servo motor 10 through a bolt, a rocker 5 is rotatably connected on the outer wall of one side of the rotating disc 3 through a rotating shaft, a support 9 is rotatably connected on the outer wall of the rocker 5, a mounting block 6 is fixed on the outer wall of an inclined plane of the main body 1 of the grid mechanism through a bolt, a push rod 8 is fixed on the outer wall of one side of the support 9 through a bolt, the circumferential outer wall of the push rod 8 is slidably connected to the inner; can be used for filtering the impurity that contains in the waste water through being provided with grid mechanism main part 1, can drive rolling disc 3 through being provided with servo motor 10 and rotate, thereby make catch bar 8 can carry out the reciprocating motion of horizontal direction along installation piece 6 under the regulatory action of rocker 5, thereby make the processing subassembly can carry out synchronous reciprocating motion, simultaneously because grid plate can rotate on grid mechanism main part 1 surface, thereby guarantee that the processing subassembly can carry out the clearance of impurity to the different positions of grid plate.
In order to collect impurities; as shown in fig. 2-4, the processing assembly comprises a collecting tray 13 and a square frame 18, the square frame 18 is fixed on the outer wall of one side of the push rod 8 through bolts, the collecting tray 13 is fixed on the outer wall of one side of the square frame 18 through bolts, the outer wall of the bottom of the square frame 18 is fixed with a scraper 14 through bolts, the outer wall of one side of the mounting plate 4 is fixed with a negative pressure generator 11 and a collecting box 12 through bolts, the output end of the negative pressure generator 11 is connected with the outer wall of the top of the collecting box 12 through a pipeline, and the outer wall of one side of the collecting box 12 is connected with the outer wall of the top of the collecting tray 13 through a three-way pipe 7; can strike off the adnexed impurity in grid mechanism main part 1 surface through being provided with scraper 14, can produce the negative pressure through being provided with negative pressure generator 11 to make the impurity after the clearance can inhale through three-way pipe 7 and collect in case 12, thereby can utilize collecting case 12 to collect impurity.
In order to improve the effect of treating impurities; as shown in fig. 4-5, the inner walls of both sides of the square frame 18 are rotatably connected with the same rotating roller 17, the outer wall of the circumference of the rotating roller 17 is provided with more than two collecting holes 15, the outer wall of the circumference of the rotating roller 17 is inserted with more than two brushes 16, the outer wall of one side of the square frame 18 is fixed with the fixed box 2 through bolts, and one end of the three-way pipe 7, which is far away from the collecting box 12, is fixed with the outer wall of one side of the fixed box 2 through bolts; can clean grizzly mechanism main part 1 surface at the in-process of square frame 18 reciprocating motion through being provided with live-rollers 17 to can further reduce the impurity and to grizzly mechanism main part 1 surperficial adhering to, utilize two above collection holes 15 to absorb the impurity after 16 cleans of brush again simultaneously, thereby can further guarantee to handle the effect to impurity.
Example 4:
in order to test the cleaning efficiency of the traditional movable telescopic arm mechanical grating cleaning equipment and the screening and filtering material processing equipment under the premise that the grating mechanism is at the same rotation speed, within 0-10min, the weight of the impurities cleaned by the movable telescopic boom mechanical grating cleaning equipment and the screening and filtering material processing equipment is detected, the obtained data is shown in figure 6 and can be obtained according to the table 6, the effect of collecting and processing impurities is equivalent to that of the traditional movable telescopic arm mechanical grating cleaning equipment and the screened and filtered material processing equipment within 0-2min, within the range of 2-7min, the effect of cleaning impurities by using the screening and filtering material treatment equipment is gradually better than that of the traditional movable telescopic arm mechanical grid cleaning equipment, within 7-10min, the collection amount of the waste water and the waste water is gradually reduced along with the reduction of the flow rate of the waste water.
The above description is for the purpose of illustrating the preferred embodiments of the present invention and is not intended to be exhaustive or to limit the invention to the precise embodiments disclosed, and all modifications, equivalents, and improvements that may occur to those skilled in the art and that fall within the spirit and scope of the invention are intended to be embraced therein.
Claims (9)
1. A wastewater pretreatment system, which comprises a sieve filter tank, a wastewater adjusting tank, sludge treatment equipment and post-treatment equipment, it is characterized in that the liquid outlet of the sieve filter is connected with the liquid inlet of the wastewater adjusting tank through a pipeline, the slag outlet of the sieve filter is connected with a sieve material processing device through a pipeline, the liquid outlet of the wastewater adjusting tank is connected with a wastewater concentration adjusting tank through a pipeline, the liquid outlet of the wastewater concentration adjusting tank is connected with a primary sedimentation tank through a pipeline, the liquid outlet of the primary sedimentation tank is connected with a secondary sedimentation tank through a pipeline, the primary sedimentation tank and the secondary sedimentation tank are both provided with a sludge outlet, the sludge outlet of the primary sedimentation tank and the sludge outlet of the secondary sedimentation tank are both connected with the input end of sludge treatment equipment through pipelines, the liquid outlet of the secondary sedimentation tank is connected with a neutralization tank through a pipeline, and the liquid outlet of the neutralization tank is connected with the liquid inlet of the post-treatment equipment through a pipeline.
2. The wastewater pretreatment system according to claim 1, wherein a grid mechanism is arranged inside the screen pool, a stirring mechanism and an aeration mechanism are arranged inside the wastewater adjusting pool, and a flocculation mechanism is arranged inside each of the primary sedimentation pool and the secondary sedimentation pool.
3. The wastewater pretreatment system of claim 2, wherein said neutralization pond comprises an acidic wastewater neutralization pond and an alkaline wastewater neutralization pond.
4. A method of treating a wastewater pretreatment system according to any of claims 1 to 3, comprising the steps of:
s1: primarily filtering the wastewater by using a grid mechanism in a screening pool, introducing the wastewater into a wastewater adjusting pool, and collecting the screened impurities by using screened material treatment equipment;
s2: accelerating the oxidation of the reducing substances by using a stirring mechanism and an aeration mechanism in the wastewater adjusting tank;
s3: the wastewater concentration adjusting tank is used for mixing the wastewater which enters and exits from the front and the back, so that the stability of the whole concentration of the wastewater is ensured;
s4: the method comprises the following steps of performing primary sedimentation on wastewater by using a flocculation mechanism in a primary sedimentation tank, performing secondary sedimentation on the wastewater by using a secondary sedimentation tank, and guiding the precipitated sludge into sludge treatment equipment by using a sludge pump for filter pressing recovery;
s5: and respectively introducing the treated wastewater into an acidic wastewater neutralization tank and an alkaline wastewater neutralization tank for neutralization treatment according to different pH values, and introducing the treated wastewater into post-treatment equipment for subsequent treatment.
5. The method as claimed in claim 4, wherein the grating mechanism in the step S1 is an arc grating with a curved surface and a gap of 50-100mm, and the device for processing the filtered material cleans the residue by crushing.
6. The method as claimed in claim 4, wherein the wastewater conditioning tank in step S2 has a specification of 5 x 5M, the rotation speed of the stirring motor of the stirring mechanism is 200r/min, the aeration mechanism employs mechanical aeration, and the aeration rate interval of the mechanical aeration is 100-150L/min.
7. The method of claim 4, wherein the wastewater treatment system further comprises a first wastewater treatment unit, the screened material processing device in the step S1 comprises a mounting plate (4) arranged on the main body (1) of the grating mechanism, a servo motor (10) is fixed on the outer wall of one side of the mounting plate (4) through a bolt, an output shaft of the servo motor (10) is fixed with a rotating disc (3) through a bolt, the outer wall of one side of the rotating disc (3) is rotatably connected with a rocker (5) through a rotating shaft, the outer wall of the rocker (5) is rotationally connected with a bracket (9), the outer wall of the inclined plane of the grating mechanism main body (1) is fixed with a mounting block (6) through a bolt, a push rod (8) is fixed on the outer wall of one side of the bracket (9) through a bolt, and the outer wall of the circumference of the push rod (8) is connected to the inner wall of the mounting block (6) in a sliding manner, and a processing assembly is fixed on the outer wall of one side of the push rod (8) through a bolt.
8. The treatment method of the wastewater pretreatment system according to claim 7, wherein the treatment component comprises a collection tray (13) and a square frame (18), the square frame (18) is fixed on the outer wall of one side of the push rod (8) through bolts, the collection tray (13) is fixed on the outer wall of one side of the square frame (18) through bolts, the outer wall of the bottom of the square frame (18) is fixed with a scraper (14) through bolts, the outer wall of one side of the mounting plate (4) is fixed with a negative pressure generator (11) and a collection box (12) through bolts, the output end of the negative pressure generator (11) is connected to the outer wall of the top of the collection box (12) through a pipeline, and the outer wall of one side of the collection box (12) is connected to the outer wall of the top of the collection tray (13) through a three-way pipe (7).
9. The treatment method of the wastewater pretreatment system according to claim 8, wherein the inner walls of the two sides of the square frame (18) are rotatably connected with the same rotating roller (17), the outer wall of the circumference of the rotating roller (17) is provided with more than two collecting holes (15), the outer wall of the circumference of the rotating roller (17) is inserted with more than two brushes (16), the outer wall of one side of the square frame (18) is fixed with the fixed box (2) through bolts, and one end of the three-way pipe (7) far away from the collecting box (12) is fixed on the outer wall of one side of the fixed box (2) through bolts.
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| CN202110683287.2A CN113387478A (en) | 2021-06-21 | 2021-06-21 | Wastewater pretreatment system and treatment method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204434393U (en) * | 2014-12-24 | 2015-07-01 | 浙江卓锦环保科技股份有限公司 | A kind of Waste Water Treatment |
| CN207017064U (en) * | 2017-07-27 | 2018-02-16 | 义乌市帝宏家纺有限公司 | A kind of carpet cleaning device |
| CN109626752A (en) * | 2019-01-27 | 2019-04-16 | 湖南湘星环保水处理设备有限公司 | A kind of school's sewage disposal system based on membrane bioreactor |
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2021
- 2021-06-21 CN CN202110683287.2A patent/CN113387478A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204434393U (en) * | 2014-12-24 | 2015-07-01 | 浙江卓锦环保科技股份有限公司 | A kind of Waste Water Treatment |
| CN207017064U (en) * | 2017-07-27 | 2018-02-16 | 义乌市帝宏家纺有限公司 | A kind of carpet cleaning device |
| CN109626752A (en) * | 2019-01-27 | 2019-04-16 | 湖南湘星环保水处理设备有限公司 | A kind of school's sewage disposal system based on membrane bioreactor |
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Application publication date: 20210914 |
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