CN119118392A - A rainwater runoff purification treatment system and purification treatment method - Google Patents
A rainwater runoff purification treatment system and purification treatment method Download PDFInfo
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- CN119118392A CN119118392A CN202411031591.9A CN202411031591A CN119118392A CN 119118392 A CN119118392 A CN 119118392A CN 202411031591 A CN202411031591 A CN 202411031591A CN 119118392 A CN119118392 A CN 119118392A
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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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
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The invention discloses a rainwater runoff purification treatment system and a purification treatment method, wherein the rainwater runoff purification treatment system comprises a physical treatment unit, a biological purification unit and a chemical disinfection unit, the physical treatment unit comprises a primary filter part, a middle filter buffer part and a flocculation fine filter part which are sequentially arranged along the flow direction, the primary filter part comprises a primary filter groove connected with the tail end of a rainwater pipe channel, the middle filter buffer part comprises a middle filter groove and a buffer tank, the flocculation fine filter part comprises a flocculation tank and a fine filter component, the biological purification unit comprises an anaerobic purification tank and an aerobic purification tank which are sequentially arranged along the flow direction, a total water outlet pipe of the fine filter component is connected with the anaerobic purification tank, an aeration pipe connected with an oxygenation pump is arranged in the aerobic purification tank, the chemical disinfection unit comprises a chemical disinfection tank connected with the aerobic purification tank, and a water outlet pipe of the chemical disinfection tank is connected with a nearby river and lake water body. The invention can sufficiently purify the rainwater runoff discharged from the tail end of the rainwater pipe canal, and prevent the water body of the river and the lake nearby from being polluted.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a rainwater runoff purification treatment system and a purification treatment method.
Background
After various pollutants on the street road surface are washed out by rainwater, rainwater runoff with higher pollutant carrying content is formed, a plurality of rain gutters are arranged below the street road surface and are connected to the rainwater pipe canal, and the rainwater runoff on the street road surface flows into the rainwater pipe canal through the rain gutters and is directly discharged into nearby river and lake water bodies.
At present, most of the rain water inlet below the street pavement has no interception capability on pollutants in the rain water runoff, and the rain water runoff with higher pollutant content flows into the rain water pipe canal through the rain water inlet below the street pavement and is directly discharged to the water body of the river and the lake, so that the water body of the river and the lake can be damaged to a certain extent, and the rain water runoff needs to be purified before being discharged into the water body of the river and the lake in order to prevent the rain water runoff from being directly discharged into the water body of the river and the lake.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, the present invention provides a system and method for purifying a stormwater runoff, which can sufficiently purify a stormwater runoff discharged from the end of a stormwater pipe and prevent the contamination of a nearby water body.
The technical scheme adopted for solving the technical problems is as follows:
A rainwater runoff purification treatment system comprises a physical treatment unit, a biological purification unit and a chemical disinfection unit, wherein the physical treatment unit comprises a primary filtering part, a middle filtering buffer part and a flocculation fine filtering part which are sequentially arranged along the flow direction, the primary filtering part comprises a primary filtering groove, the middle filtering buffer part comprises a middle filtering groove and a buffer tank, the flocculation fine filtering part comprises a flocculation tank and a fine filtering component, one side of the primary filtering groove is connected with the tail end of a rainwater pipe canal, the other side of the primary filtering groove is connected with the middle filtering groove, the middle filtering groove is connected with the flocculation tank through the buffer tank, the fine filtering component is used for finely filtering rainwater runoff obtained after flocculation in the flocculation tank, the biological purification unit comprises an anaerobic purification tank and an aerobic purification tank which are sequentially arranged along the flow direction, a total water outlet pipe of the fine filtering component is connected with the anaerobic purification tank, an aeration pipe connected with an aeration pump is arranged in the aerobic purification tank, and the chemical disinfection unit comprises a chemical disinfection tank connected with the aerobic disinfection tank, and a drain pipe of the chemical disinfection tank is connected with a nearby river body.
Further, the middle part of the back side wall of the primary filter tank is connected with the tail end of the rainwater pipe canal, the left end and the right end of the front side wall are respectively provided with a first filter screen plate, a plurality of second filter screen plates which are positioned between the first filter screen plates on the left side and the right side are sequentially arranged between the front side wall and the back side wall of the primary filter tank from left to right, the two middle filter tanks are distributed on the left side and the right side of the buffer tank, the primary filter tank is communicated with the middle filter tank on the left side through the first filter screen plates on the left side, the primary filter tank is communicated with the middle filter tank on the right side through the first filter screen plates on the right side, a plurality of third filter screen plates which are positioned between the first filter screen plates on the left side and the right side are sequentially arranged between the front side wall and the back side wall of the primary filter tank from left to right, fourth filter screen plates are respectively arranged on the left side wall and the right side wall of the buffer tank, the middle filter tank is communicated with the fourth filter screen plates on the right side through the fourth filter screen plates on the left side, the middle filter tank is communicated with the buffer tank through the fourth filter screen plates on the right side, the fifth filter screen plates are arranged on the front side of the buffer tank, and the front side of the filter tank is positioned at the front end of the buffer tank is communicated with the fifth filter screen.
Further, flocculating tank top is equipped with flocculating agent and puts in equipment, the fine filtration subassembly is a plurality of and from left to right arranges in the relevant position department of flocculating tank side by side, every the fine filtration subassembly is including setting up centrifugal pump in the flocculating tank and setting up the step frame in flocculating tank front end department, the step frame includes first step face, second step face and the third step face that the top height reduces in proper order, all be provided with a plurality of fine filtration section of thick bamboo on first step face, second step face and the third step face, just the fine filtration section of thick bamboo figure on first step face, second step face and the third step face is equal, the delivery port of centrifugal pump is connected with each fine filtration section of thick bamboo water inlet on the first step face, each fine filtration section of thick bamboo delivery port on the first step face is connected with the corresponding fine filtration section of thick bamboo water inlet on the second step face, each fine filtration section of thick bamboo delivery port on the second step face is connected with the corresponding fine filtration section of thick bamboo water inlet on the third step face, each fine filtration section of thick bamboo delivery port on the third step face is through corresponding branch water pipe and is connected with total anaerobism water pipe, the outlet pipe is connected with the outlet pipe.
Further, the number of centrifugal pumps in each fine filtering assembly is multiple, the fine filtering barrels on the first step surface are divided into multiple groups according to the number of the centrifugal pumps, the number of the fine filtering barrels in each group is equal, and the water outlet of each centrifugal pump is connected with the water inlet of a corresponding group of fine filtering barrels on the first step surface.
Further, the water outlet of each centrifugal pump is connected with a corresponding group of fine filter cartridge water inlets on a first step surface through a first connecting pipe, each fine filter cartridge water outlet on the first step surface is connected with a corresponding fine filter cartridge water inlet on a second step surface through a second connecting pipe, and each fine filter cartridge water outlet on the second step surface is connected with a corresponding fine filter cartridge water inlet on a third step surface through a third connecting pipe.
Further, the fine filter cylinder comprises an outer cylinder body with an open top, the bottom end of the outer cylinder body is connected with a first mud pipe with a first valve, the top end of the first mud pipe is inserted into the inner bottom of the outer cylinder body, a fine filter inner cylinder with both the open top and the open bottom is fixed in the outer cylinder body, the bottom end of the fine filter inner cylinder is communicated with the top end of the first mud pipe, the open top end of the fine filter inner cylinder forms a water inlet of the fine filter cylinder, and the bottom of the outer cylinder body is provided with a water outlet and forms a water outlet of the fine filter cylinder.
Further, the two aerobic purification tanks are respectively called a first aerobic purification tank and a second aerobic purification tank, the first aerobic purification tank is arranged at the position between the anaerobic purification tank and the second aerobic purification tank, the first aerobic purification tank is communicated with the anaerobic purification tank and the second aerobic purification tank through water pipelines with second valves, a plurality of aeration pipes are arranged in the first aerobic purification tank and the second aerobic purification tank, each aeration pipe is connected with an oxygenation pump through a gas pipe, the bottom ends of the anaerobic purification tank, the first aerobic purification tank and the second aerobic purification tank are connected with sludge pipes with third valves, and the bottom ends of the sludge pipes are connected to the second sludge pipes.
Further, the first valve is arranged at the top of the first mud conveying pipe, a first spiral conveying rod is arranged in the first mud conveying pipe below the first valve, the bottom end of the first spiral conveying rod is connected with a first motor through a first speed reducer, the bottom of the first mud conveying pipe is connected with a first mud outlet pipe, a second spiral conveying rod is arranged in the second mud conveying pipe, one end of the second spiral conveying rod is connected with a second motor through a second speed reducer, one end of the second mud conveying pipe is connected with a second mud outlet pipe, and the bottom of the flocculation tank is connected with a suction pump through a third mud outlet pipe.
Further, disinfectant delivery equipment is arranged above the chemical disinfection tank, and a stirrer is arranged in the chemical disinfection tank.
The rainwater runoff purification treatment method adopts the rainwater runoff purification treatment system to carry out purification treatment and comprises the following steps:
S1, enabling the rainwater runoff discharged from the tail end of a rainwater pipe canal to enter a primary filter tank so as to filter large particle pollutants in the rainwater runoff, enabling the rainwater runoff to enter a middle filter tank so as to filter most of medium particle pollutants in the rainwater runoff, enabling the rainwater runoff to enter a buffer tank so as to filter the rest medium particle pollutants in the rainwater runoff, enabling the rainwater runoff to enter a flocculation tank and to be subjected to flocculation treatment so as to precipitate small particle pollutants in the rainwater runoff, and enabling the rainwater runoff obtained after the flocculation tank is subjected to fine filtration through a fine filtration assembly so as to remove micro-particle pollutants in the rainwater runoff;
S2, conveying the finely filtered rainwater runoff into an anaerobic purification tank through the total water outlet pipe, carrying out anaerobic purification treatment on the rainwater runoff through anaerobic bacteria in the anaerobic purification tank, entering the aerobic purification tank through the rainwater runoff subjected to anaerobic purification treatment, conveying air into an aeration pipe through the oxygenation pump, and discharging air into the rainwater runoff in the aerobic purification tank through the aeration pipe, so that the aerobic bacteria in the aerobic purification tank are fully contacted with the air to carry out aerobic purification treatment on the rainwater runoff;
S3, enabling the rainwater runoff subjected to aerobic purification treatment to enter the chemical disinfection tank for disinfection, and discharging the disinfected rainwater runoff into nearby river and lake water bodies through the drain pipe.
Compared with the prior art, the invention has the beneficial effects that:
The rainwater runoff purification treatment system is used for purifying the rainwater runoff discharged from the tail end of the rainwater pipe canal, specifically, the rainwater runoff discharged from the tail end of the rainwater pipe canal enters a primary filter tank to filter large particle pollutants in the rainwater runoff, then the rainwater runoff enters a middle filter tank to filter most of the particle pollutants in the rainwater runoff, then the rainwater runoff enters a buffer tank to filter the residual particle pollutants in the rainwater runoff, then the rainwater runoff enters a flocculation tank and is subjected to flocculation treatment to precipitate small particle pollutants in the rainwater runoff, then the rainwater runoff obtained after the precipitation treatment of the flocculation tank is subjected to fine filtration through a fine filtration assembly to remove micro-particle pollutants in the rainwater runoff, the rainwater runoff after the fine filtration is conveyed into an anaerobic purification tank through a total water outlet pipe, the rainwater runoff after the anaerobic purification treatment is subjected to aerobic purification treatment through anaerobic bacteria in the anaerobic purification tank, air is conveyed into an aeration pipe through an aeration pump to filter the residual particle pollutants in the rainwater runoff, the rainwater runoff after the aerobic purification treatment is subjected to the aerobic purification treatment, and the rainwater runoff is fully sterilized and discharged into a water drain pipe after the water pipe is subjected to the aerobic treatment, and the rainwater runoff is subjected to the chemical disinfection treatment, and the rainwater is fully subjected to the disinfection and the purification treatment. Thus, large particle pollutants in the rainwater runoff can be filtered through the primary filter tank, most of medium particle pollutants in the rainwater runoff can be filtered through the middle filter tank, the rest of medium particle pollutants in the rainwater runoff can be filtered through the buffer tank, small particle pollutants in the rainwater runoff can be precipitated through the flocculation tank, the rainwater runoff obtained after the precipitation treatment of the flocculation tank can be subjected to fine filtration through the fine filtration component so as to remove micro particle pollutants in the rainwater runoff, the rainwater runoff after the fine filtration can be subjected to anaerobic purification treatment through anaerobic bacteria in the anaerobic purification tank, the rainwater runoff after the anaerobic purification treatment can be subjected to aerobic purification treatment through aerobic bacteria in the aerobic purification tank, the anaerobic purification treatment and the aerobic purification treatment are combined to fully remove organic pollutants in the rainwater runoff, the rainwater runoff after the aerobic purification treatment can be sterilized and disinfected by a chemical sterilizing pond, the sterilized rainwater runoff is discharged into nearby river and lake water bodies, and the rainwater runoff is integrated, before the biological purification treatment is carried out on the rainwater runoff, the rainwater runoff purification treatment system can fully remove various particle pollutants in the rainwater runoff, and the rainwater runoff purification treatment system can fully purify the rainwater runoff discharged from the tail end of the rainwater canal so as to prevent the water bodies of the nearby rivers and lakes from being polluted.
In the invention, the middle part of the rear side wall of a primary filter tank is connected with the tail end of a rainwater pipe canal, the left end and the right end of the front side wall are respectively provided with a first filter screen plate, a plurality of second filter screen plates positioned between the first filter screen plates on the left side and the right side are sequentially arranged between the front side wall and the rear side wall in the primary filter tank from left to right, two middle filter tanks are distributed on the left side and the right side of a buffer tank, the primary filter tank is communicated with the middle filter tank on the left side through the first filter screen plates on the left side, the primary filter tank is communicated with the middle filter tank on the right side through the first filter screen plates on the right side, a plurality of third filter screen plates positioned between the first filter screen plates on the left side and the right side are sequentially arranged between the front side wall and the rear side wall in each middle filter tank from left to right, the left side wall and the right side wall of the buffer tank are respectively provided with fourth filter screen plates, the middle filter tank on the left side is communicated with the buffer tank through the fourth filter screen plates on the left side, the middle filter tank is communicated with the buffer tank through the fourth filter screen plates on the right side, and the fifth filter screen plates are positioned at the front end of the buffer tank and the flocculation tank is positioned between the front end of the buffer tank and the buffer tank is communicated with the fifth filter screen plates; so that most large particle pollutants in the rainwater runoff can be filtered through each second filter screen plate in the primary filter tank, the left and right first filter screen plates in the primary filter tank can thoroughly filter the residual large particle pollutants in the rainwater runoff, the rainwater runoff filtered by the left first filter screen plate enters the left middle filter tank, the rainwater runoff filtered by the right first filter screen plate enters the right middle filter tank, the rainwater in the middle filter tank flows through each third filter screen plate and the corresponding fourth filter screen plate to be filtered, so that most of the particle pollutants in the rainwater runoff are removed, and then the rainwater in the left middle filter tank flows through the left fourth filter screen plate to be filtered and then enters the buffer tank, the rainwater in the right middle filter tank flows through the right fourth filter screen plate to be filtered and then enters the buffer tank, and the rainwater in the buffer tank flows through the fifth filter screen plate to be filtered so as to remove residual medium particle pollutants in the rainwater runoff, and the rainwater runoff filtered by the fifth filter screen plate enters the flocculation tank.
In the invention, flocculant throwing equipment is arranged above a flocculation tank, a plurality of fine filtering components are arranged at corresponding positions of the flocculation tank side by side from left to right, each fine filtering component comprises a centrifugal pump arranged in the flocculation tank and a step frame arranged at the front end of the flocculation tank, each step frame comprises a first step surface, a second step surface and a third step surface, the heights of the top ends of the first step surface, the second step surface and the third step surface are sequentially reduced, a plurality of fine filtering cylinders are arranged on the first step surface, the second step surface and the third step surface, the number of fine filtering cylinders on the first step surface, the second step surface and the third step surface is equal, the water outlet of the centrifugal pump is connected with the water inlet of each fine filtering cylinder on the first step surface, the water outlet of each fine filtering cylinder on the first step surface is connected with the water inlet of the corresponding fine filtering cylinder on the second step surface, the water outlet of each fine filtering cylinder on the second step surface is connected with one end of a total water outlet pipe through a corresponding water outlet pipe, and the other end of the total water outlet pipe is connected with an anaerobic purification tank; in this way, flocculant is thrown into the flocculation tank through flocculant throwing equipment so as to precipitate small particle pollutants in the rainwater runoff entering the flocculation tank, then the rainwater runoff obtained after precipitation treatment of the flocculation tank is pumped into each fine filter cylinder on the first step surface through a centrifugal pump of each fine filter assembly, the rainwater runoff obtained after fine filtration of each fine filter cylinder on the first step surface enters the corresponding fine filter cylinder on the second step surface by gravity, the rainwater runoff obtained after fine filtration of each fine filter cylinder on the second step surface enters the corresponding fine filter cylinder on the third step surface by gravity, the rainwater runoff obtained after fine filtration of each fine filter cylinder on the third step surface enters the total water outlet pipe through the corresponding water outlet pipe, the rainwater runoff in the total water outlet pipe enters the anaerobic purification tank, so that the rainwater runoff obtained after the sedimentation treatment of the flocculation tank can be sufficiently subjected to fine filtration by the fine filtration component so as to sufficiently remove micro-particle pollutants in the rainwater runoff.
Drawings
FIG. 1 is a schematic diagram of a system for purifying and treating rainfall runoff in the present invention;
FIG. 2 is an enlarged schematic diagram of the physical processing unit of FIG. 1;
FIG. 3 is a schematic diagram of a specific structure of a fine filter cartridge on a third step surface;
FIG. 4 is a schematic view of the structure of FIG. 2 showing the connection of the buffer tank to the flocculation tank after the flocculation agent dispensing apparatus;
FIG. 5 is a schematic diagram of a specific structure of a biological purification unit;
Fig. 6 is a schematic diagram showing a specific structure of the chemical sterilizing unit.
The reference numerals in the drawings illustrate: 101, primary filter tank, 102, first filter screen, 102, second filter screen, 201, middle filter tank, 202, buffer tank, 203, third filter screen, 204, fourth filter screen, 205, fifth filter screen, 301, flocculation tank, 302, flocculant delivery device, 303, centrifugal pump, 304, step frame, 30401, first step face, 30402, second step face, 30403, third step face, 305, filter cartridge, 30401, outer cylinder, 30502, first valve, 30503, first mud pipe, 30504, fine filter inner cylinder, 30505, split water pipe, 30506, first screw conveyor rod, 30307, first speed reducer, 30508, first motor, 30509, first mud pipe, 306, first connection pipe, 307, second connection pipe, 308, third connection pipe, 309, third mud pipe, 3010, main water pipe, 401, anaerobic purification tank, 402, oxygen pump, 403, aeration pipe, 404, first aerobic purification tank, 405, second motor, 406, third valve, 4016, second motor, 40124, second motor, 4016, spiral conveyor rod, 4016, and other devices.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
1-2, A rainwater runoff purifying treatment system comprises a physical treatment unit, a biological purification unit and a chemical disinfection unit, wherein the physical treatment unit comprises a primary filtering part, a middle filtering buffer part and a flocculation fine filtering part which are sequentially arranged along the flow direction, the primary filtering part comprises a primary filtering groove 101, the middle filtering buffer part comprises a middle filtering groove 201 and a buffer tank 202, the flocculation fine filtering part comprises a flocculation tank 301 and a fine filtering component, one side of the primary filtering groove 101 is connected with the tail end of a rainwater pipe 6, the other side of the primary filtering groove is connected with the middle filtering groove 201, the middle filtering groove 201 is connected with the flocculation tank 301 through the buffer tank 202, the fine filtering component is used for finely filtering the rainwater runoff obtained after flocculation in the flocculation tank 301, the biological purification unit comprises an anaerobic purification tank 401 and an aerobic purification tank which are sequentially arranged along the flow direction, a total water outlet pipe 3010 of the fine filtering component is connected with the anaerobic purification tank 401, an aeration pipe 403 connected with an aerobic pump 402 is arranged in the aerobic purification tank, the chemical disinfection unit comprises a chemical disinfection tank 501 connected with the aerobic purification tank, and a drain pipe of the chemical disinfection tank 501 is connected with a nearby river water body.
The rainwater runoff purification treatment system is used for purifying the rainwater runoff discharged from the tail end of the rainwater pipe channel 6, specifically, the rainwater runoff discharged from the tail end of the rainwater pipe channel 6 enters the primary filter tank 101 to filter large-particle pollutants in the rainwater runoff, then the rainwater runoff enters the middle filter tank 201 to filter most of the medium-particle pollutants in the rainwater runoff, then the rainwater runoff enters the buffer tank 202 to filter the residual medium-particle pollutants in the rainwater runoff, then the rainwater runoff enters the flocculation tank 301 and is subjected to flocculation treatment to precipitate small-particle pollutants in the rainwater runoff, then the rainwater runoff obtained after the sedimentation treatment of the flocculation tank 301 is subjected to fine filtration through the fine filtration component to remove the micro-particle pollutants in the rainwater runoff, the rainwater runoff after the fine filtration is conveyed into the anaerobic purification tank 401 through the total water outlet pipe 3010, the rainwater is subjected to the anaerobic purification treatment, then the rainwater runoff enters the aerobic purification tank 202 to filter the residual medium-particle pollutants in the rainwater runoff, the air pump 402 to convey the residual medium-particle pollutants in the rainwater runoff to the aeration pipe 403, the rainwater runoff is subjected to the aerobic purification tank, the sewage is discharged to the aerobic water after the aerobic purification tank is subjected to the aerobic purification treatment, and the sewage is fully disinfected and the sewage is discharged to the sewage after the sewage is subjected to the aerobic purification treatment, and the sewage is fully disinfected and the sewage is subjected to the sewage treatment. Thus, large particle pollutants in the rainwater runoff can be filtered through the primary filter tank 101, most of the medium particle pollutants in the rainwater runoff can be filtered through the middle filter tank 201, the rest of the medium particle pollutants in the rainwater runoff can be filtered through the buffer tank 202, small particle pollutants in the rainwater runoff can be precipitated through the flocculation tank 301, the rainwater runoff obtained after the precipitation treatment of the flocculation tank 301 can be subjected to fine filtration through the fine filtration component so as to remove micro particle pollutants in the rainwater runoff, anaerobic purification treatment can be performed on the rainwater runoff after the fine filtration through anaerobic bacteria in the anaerobic purification tank 401, aerobic purification treatment can be performed on the rainwater runoff after the anaerobic purification treatment through aerobic bacteria in the aerobic purification tank, the organic pollutants in the rainwater runoff can be sufficiently removed through the combination of the anaerobic purification treatment and the aerobic purification treatment, the rainwater after the sterilization treatment can be sterilized through the chemical sterilization tank 501, the rainwater runoff is discharged into water bodies of nearby rivers, the rainwater purification treatment system can be used for completely removing the pollutants in the runoffs of the runoffs, and the runoffs can be fully purified from the runoffs of the runoffs, and the tail ends of the runoffs can be fully purified by adopting the system of the invention.
In one embodiment, as shown in fig. 2, the middle part of the rear side wall of the primary filter tank 101 is connected with the tail end of the rainwater pipe 6, the left end and the right end of the front side wall are respectively provided with a first filter screen plate 102, a plurality of second filter screen plates 103 positioned between the first filter screen plates 102 on the left side and the right side are sequentially arranged between the front side wall and the rear side wall of the primary filter tank 101 from left to right, the middle filter tank 201 is two and distributed on the left side and the right side of the buffer pool 202, the primary filter tank 101 is communicated with the middle filter tank 201 on the left side through the first filter screen plates 102 on the left side, the primary filter tank 101 is communicated with the middle filter tank 201 on the right side through the first filter screen plates 102 on the right side, a plurality of third filter screen plates 203 positioned between the first filter screen plates 102 on the left side and the right side are sequentially arranged between the front side wall and the rear side wall of each middle filter tank 201 from left to right, a fourth filter screen plate 204 is arranged on the left side wall and the right side wall of the buffer pool 202 from left to right, the middle filter tank 201 is communicated with the buffer pool 202 through the fourth filter screen plates 204 on the left side, the middle filter tank 201 is communicated with the buffer pool 202 through the fourth filter screen plates 205 on the right side, and the fifth filter screen plates 205 are communicated with the front side of the buffer pool 301 are arranged on the front side of the filter pool, and the front filter pool is connected with the front filter pool 200.
In this way, most large particle pollutants in the rainwater runoff can be filtered through each second filter screen plate 103 in the primary filter tank 101, residual large particle pollutants in the rainwater runoff can be thoroughly filtered through the left first filter screen plate 102 and the right first filter screen plate 102 in the primary filter tank 101, the rainwater runoff filtered by the left first filter screen plate 102 enters the left middle filter tank 201, the rainwater runoff filtered by the right first filter screen plate 102 enters the right middle filter tank 201, the rainwater runoff in the middle filter tank 201 is filtered through each third filter screen plate 203 and the corresponding fourth filter screen plate 204, so that most of the particle pollutants in the rainwater runoff are removed, then the rainwater runoff in the left middle filter tank 201 enters the buffer tank 202 after being filtered through the left fourth filter screen plate 204, the rainwater runoff in the right middle filter tank 201 enters the buffer tank 202 after being filtered through the right fourth filter screen plate 204, the rainwater runoff in the buffer tank 202 is filtered through the fifth filter screen plate 205, and the residual particle pollutants in the rainwater runoff are removed, and the rainwater runoff in the rainwater runoff is filtered by the fifth filter screen plate 205 enters the flocculation tank 301.
In one embodiment, as shown in fig. 4, a flocculating agent throwing device 302 is arranged above the flocculation tank 301, as shown in fig. 2, the number of fine filtration components is equal to that of fine filtration cartridges 305 on the first step surface 30401, the number of fine filtration components is equal to that of fine filtration cartridges 305 on the second step surface 30402 and the number of fine filtration cartridges 305 on the third step surface 30103, the water outlet of the centrifugal pump 303 is connected with the water inlet of each fine filtration cartridge 305 on the first step surface 30401, the water outlet of each fine filtration cartridge 305 on the first step surface 30401 is connected with the water inlet of each fine filtration cartridge 305 on the second step surface 30402, the water outlet of each fine filtration cartridge 305 on the second step surface 30402 is connected with the water outlet of each fine filtration cartridge 305 on the third step surface 3040, and the water outlet of each fine filtration cartridge 305 is connected with the water outlet of each fine filtration cartridge 305 on the third step surface 3040 through a water outlet pipe 3010.
In this way, flocculant is thrown into flocculation tank 301 through flocculant throwing device 302 to precipitate small particle pollutants in the rainwater runoff entering flocculation tank 301, then the rainwater runoff obtained after precipitation treatment of flocculation tank 301 is pumped into each fine filter cylinder 305 on first step surface 30401 through centrifugal pump 303 of each fine filter component, the rainwater runoff obtained after fine filtration of each fine filter cylinder 305 on first step surface 30401 enters corresponding fine filter cylinder 305 on second step surface 30402 by gravity, the rainwater runoff obtained after fine filtration of each fine filter cylinder 305 on second step surface 30402 enters corresponding fine filter cylinder 305 on third step surface 30503 by gravity, the rainwater runoff obtained after fine filtration of each fine filter cylinder 305 on third step surface 3003 enters total water outlet pipe 3010 through corresponding water outlet pipe 30505, and the rainwater runoff in total water outlet pipe 3010 enters into anaerobic purification tank 401, so the rainwater runoff obtained after precipitation treatment of flocculation tank 301 can be fully filtered by the fine filter component of the invention, and the micro-particle pollutants in the rainwater can be fully removed.
As shown in fig. 2, the number of centrifugal pumps 303 in each fine filtration assembly is multiple, the fine filtration cartridges 305 on the first step surface 30401 are divided into multiple groups according to the number of centrifugal pumps 303, the number of fine filtration cartridges 305 in each group is equal, and the water outlet of each centrifugal pump 303 is connected with the water inlet of a corresponding group of fine filtration cartridges 305 on the first step surface 30401. Preferably, the water outlet of each centrifugal pump 303 is connected to the water inlet of a corresponding group of fine filter cartridges 305 on the first step surface 30401 through the first connecting pipe 306, the water outlet of each fine filter cartridge 305 on the first step surface 30401 is connected to the water inlet of a corresponding fine filter cartridge 305 on the second step surface 30402 through the second connecting pipe 307, and the water outlet of each fine filter cartridge 305 on the second step surface 30402 is connected to the water inlet of a corresponding fine filter cartridge 305 on the third step surface 30403 through the third connecting pipe 308.
As shown in fig. 3, the fine filter cylinder 305 includes an outer cylinder 30501 with an open top, the bottom end of the outer cylinder 30501 is connected with a first mud pipe 30503 with a first valve 30502, the top end of the first mud pipe 30503 is inserted into the inner bottom of the outer cylinder 30501, a fine filter inner cylinder 30504 with both open top and bottom ends is fixed in the outer cylinder 30501, the bottom end of the fine filter inner cylinder 30504 is communicated with the top end of the first mud pipe 30503, the top end opening of the fine filter inner cylinder 30504 forms a water inlet of the fine filter cylinder 305, and the bottom of the outer cylinder 30501 is provided with a water outlet and forms a water outlet of the fine filter cylinder 305. Thus, the rainwater runoff enters the fine filtration inner cylinder 30504 through the water inlet, the rainwater runoff obtained after the fine filtration inner cylinder 30504 enters the outer cylinder 30501 and is discharged outwards through the water outlet, and the sludge in the fine filtration inner cylinder 30504 is discharged outwards through the first sludge conveying pipe 30503.
Preferably, as shown in fig. 1 and 5, the number of the aerobic purifying tanks is two and respectively referred to as a first aerobic purifying tank 404 and a second aerobic purifying tank 405, the first aerobic purifying tank 404 is arranged at a position between the anaerobic purifying tank 401 and the second aerobic purifying tank 405, the first aerobic purifying tank 404 is communicated with the anaerobic purifying tank 401 and the second aerobic purifying tank 405 through water pipelines with second valves, a plurality of aeration pipes 403 are arranged in the first aerobic purifying tank 404 and the second aerobic purifying tank 405, each aeration pipe 403 is connected with the oxygenation pump 402 through an air pipe, the bottom ends of the anaerobic purifying tank 401, the first aerobic purifying tank 404 and the second aerobic purifying tank 405 are connected with a sludge discharging pipe 407 with a third valve 406, and the bottom ends of the sludge discharging pipes 407 are connected to a second sludge conveying pipe 408. Thus, after the anaerobic purification treatment, the second valve arranged on the water pipeline between the first aerobic purification tank 404 and the anaerobic purification tank 401 is opened, so that the rainwater runoff enters the first aerobic purification tank 404, the first-stage aerobic purification treatment can be carried out on the rainwater runoff after the anaerobic purification treatment by the aerobic bacteria in the first aerobic purification tank 404, after the first-stage aerobic purification treatment, the second valve arranged on the water pipeline between the first aerobic purification tank 404 and the second aerobic purification tank 405 is opened, the rainwater runoff enters the second aerobic purification tank 405, the second-stage aerobic purification treatment can be carried out on the rainwater runoff after the first-stage aerobic purification treatment by the aerobic bacteria in the second aerobic purification tank 405, the organic pollutants in the rainwater runoffs can be fully removed by combining the anaerobic purification treatment, the first-stage aerobic purification tank 404 and the second-stage aerobic purification tank 405, and the sludge in the second-stage aerobic purification tank 405 is discharged outside through the second sludge pipe 408.
Preferably, as shown in fig. 3, the first valve 30502 is disposed at the top of the first mud pipe 30503, a first spiral conveying rod 30506 is disposed in the first mud pipe 30503 below the first valve 30502, the bottom end of the first spiral conveying rod 30506 is connected with the first motor 30508 through a first speed reducer 3007, the bottom of the first mud pipe 3003 is connected with a first mud outlet pipe 30509, as shown in fig. 5, a second spiral conveying rod 409 is disposed in the second mud pipe 408, one end of the second spiral conveying rod 409 is connected with the second motor 4011 through a second speed reducer 4010, one end of the second mud pipe 408 is connected with a second mud outlet pipe 4012, and as shown in fig. 4, the bottom of the flocculation tank 301 is connected with the suction pump through a third mud outlet pipe 309. When the sludge needs to be cleaned, the suction pump is started to suck the sludge at the bottom of the flocculation tank 301 through the third sludge outlet pipe 309, the first valve 30502 is opened, the first motor 30508 drives the first spiral conveying rod 30506 to rotate through the first speed reducer 30508, the sludge entering the first sludge outlet pipe 30503 is discharged outwards through the first sludge outlet pipe 30509, the sludge in the fine filtration inner barrel 30504 is discharged, the third valves 406 are opened, the second motor 4011 is started, the second motor 4011 drives the second spiral conveying rod 409 to rotate through the second speed reducer 4010, and the sludge entering the second sludge outlet pipe 408 is discharged outwards through the second sludge outlet pipe 4012, so that the sludge in the anaerobic purification tank 401, the first aerobic purification tank 404 and the second aerobic purification tank 405 is discharged outwards.
In one embodiment, as shown in fig. 6, a disinfectant delivery device 502 is arranged above the chemical disinfection tank 501, and stirrers are respectively arranged at two sides of the disinfectant delivery device 502 in the chemical disinfection tank 501. Thus, disinfectant is put into the chemical disinfection tank 501 through the disinfectant putting device 502 so as to disinfect and sterilize the rainwater runoff entering the chemical disinfection tank 501, wherein the stirrer can fully mix the rainwater runoff in the chemical disinfection tank 501 with the disinfectant, and further can fully disinfect and sterilize the rainwater runoff. Wherein the stirrer comprises a stirring rod 503, and the top end of the stirring rod 503 is connected with a third motor 505 through a third speed reducer 504.
In the invention, the oxygenation pump 402, the flocculant throwing device 302, the centrifugal pump 303, the first valve 30502, the second valve, the third valve 406, the first motor 30508, the second motor 4011, the suction pump, the disinfectant throwing device 502 and the third motor 505 are all controlled to be opened and closed or opened by a controller, wherein the controller is a PLC controller. The invention can control the work of the physical treatment unit, the biological purification unit and the chemical disinfection unit through the controller, thereby realizing the efficient purification treatment of the rainwater runoff.
In the invention, two biological purification units and two chemical disinfection units are respectively arranged at two sides of a physical treatment unit, and each biological purification unit is connected with one chemical disinfection unit.
The rainwater runoff purification treatment method adopts the rainwater runoff purification treatment system to carry out purification treatment and comprises the following steps:
S1, enabling the rainwater runoff discharged from the tail end of a rainwater pipe 6 to enter a primary filter tank 101 so as to filter large-particle pollutants in the rainwater runoff, enabling the rainwater runoff to enter a middle filter tank 201 so as to filter most of medium-particle pollutants in the rainwater runoff, enabling the rainwater runoff to enter a buffer tank 202 so as to filter the rest medium-particle pollutants in the rainwater runoff, enabling the rainwater runoff to enter a flocculation tank 301 and pass through flocculation treatment so as to precipitate small-particle pollutants in the rainwater runoff, and performing fine filtration on the rainwater runoff obtained after the sedimentation treatment in the flocculation tank 301 through a fine filtration assembly so as to remove micro-particle pollutants in the rainwater runoff;
S2, conveying the finely filtered rainwater runoff into an anaerobic purification tank 401 through a total water outlet pipe 3010, performing anaerobic purification treatment on the rainwater runoff through anaerobic bacteria in the anaerobic purification tank 401, conveying air into an aeration pipe 403 through an oxygenation pump 402, and discharging air into the rainwater runoff in the aerobic purification tank through the aeration pipe 403, so that the aerobic bacteria in the aerobic purification tank fully contact with the air to perform aerobic purification treatment on the rainwater runoff;
S3, enabling the rainwater runoff subjected to aerobic purification treatment to enter a chemical disinfection tank 501 for disinfection, and discharging the disinfected rainwater runoff into nearby river and lake water bodies through a drain pipe.
In summary, the rainwater runoff purification treatment system can fully remove various particle pollutants in the rainwater runoff before the rainwater runoff is subjected to biological purification treatment, and the rainwater runoff purification treatment system can fully purify the rainwater runoff discharged from the tail end of the rainwater pipe 6 to prevent the water body of the river and the lake from being polluted.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411031591.9A CN119118392A (en) | 2024-07-30 | 2024-07-30 | A rainwater runoff purification treatment system and purification treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411031591.9A CN119118392A (en) | 2024-07-30 | 2024-07-30 | A rainwater runoff purification treatment system and purification treatment method |
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| Publication Number | Publication Date |
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| CN119118392A true CN119118392A (en) | 2024-12-13 |
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| CN202411031591.9A Pending CN119118392A (en) | 2024-07-30 | 2024-07-30 | A rainwater runoff purification treatment system and purification treatment method |
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| CN (1) | CN119118392A (en) |
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- 2024-07-30 CN CN202411031591.9A patent/CN119118392A/en active Pending
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