CN113716672A - In-situ purification device and method for rainy-day overflow pollution - Google Patents

In-situ purification device and method for rainy-day overflow pollution Download PDF

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Publication number
CN113716672A
CN113716672A CN202111079672.2A CN202111079672A CN113716672A CN 113716672 A CN113716672 A CN 113716672A CN 202111079672 A CN202111079672 A CN 202111079672A CN 113716672 A CN113716672 A CN 113716672A
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water
slow
rotating shaft
water level
overflow
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CN113716672B (en
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徐祖信
张云惠
楚文海
金伟
李怀正
胡峰
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Tongji University
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Tongji University
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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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention provides an in-situ purification device aiming at rain overflow pollution, which is suitable for a river bank near a discharge port at the tail end of a rainwater pipe network. The functional material prepared by the slow release technology can reduce overflow pollution for a long time and mildly, and simultaneously reduces the influence of the material on the water ecology. The feeding device is composed of a feeding box arranged on the bank side of the discharge port and a flexible baffle plate under water near the discharge port, and is small in occupied area and low in construction investment. The inclined or vertical bottom of the box body ensures that no water is accumulated in the box body, and the water attached to the slow-release material can be dried, so that the consumption of the slow-release material in non-rainy days is reduced.

Description

In-situ purification device and method for rainy-day overflow pollution
Technical Field
The invention belongs to the field of river and lake water body restoration, and is suitable for in-situ rapid reduction of rain day overflow pollution at a discharge port at the tail end of a rain pipe network, treatment of river and lake water environment pollution from a source and improvement of watershed water ecological environment.
Background
At present, the phenomenon of black and odorous water in urban water still exists, and the task of eliminating the black and odorous water in urban built-up areas in 2030 specified in the working guidelines for treating urban black and odorous water is still very difficult. The frequent black and odorous phenomena occur in many cities due to the dilemma of repeated black and odorous treatment, especially in rainy days. The main reason is that the drainage pipe network overflows and pollutes the emission to the water in rainy days, including the rain water emission of the combined system in rainy days and the initial rainwater emission of the split system.
The overflow pollution in rainy days is various, the sources are wide, and the load fluctuation of water quality and water quantity is large. The rain day overflow pollution mainly comprises SS, COD, heavy metals, eutrophic substances (N, P), pathogenic bacteria, viruses, toxic organic matters, humus and the like, and the sources of the pollution mainly comprise atmospheric pollutants caused by rainfall, surface runoff scouring pollutants, pipeline sediments, domestic sewage and the like. The concentration change of main pollution SS, COD and the like overflowing in rainy days is very large and can be changed between dozens of and thousands of mg/L; the amount of overflow water in rainy days also fluctuates greatly along with the change of rainfall.
The control measures of the rain overflow mainly comprise source control, pipeline system control, midway storage regulation control and tail end treatment. No matter the runoff is reduced from the source, the pipeline system is controlled, or a regulation pool is built, and the like, the overflow pollution in rainy days can not be avoided under the condition of large rainfall. Therefore, the terminal treatment is gradually receiving attention as an effective supplementary measure for reducing the load of the overflowing contamination in rainy days. The existing tail end treatment methods comprise an activated sludge method, an artificial wetland, grid treatment, a vortex type water diversion tank, a cyclone separator, a rapid filter tank, coagulation-flocculation, a chemical agent method and the like. Biological methods such as activated sludge method have weak capability of resisting impact load of water quality and water quantity, and are difficult to deal with rainThe change of the water quantity of the natural overflow polluted water. The artificial wetland has stronger impact load resistance, but larger occupied area, and is not suitable for urban drainage systems with tense land. Physical methods such as grid treatment, vortex type water diversion tank, cyclone separator, rapid filtration and the like have high treatment speed, but the treatment effect is poor. The coagulation-flocculation method can realize rapid reduction of SS, non-soluble COD, TP and other pollutants, but still has the effect of reducing soluble COD and NH4 +N has little problem to remove. The chemical medicament method has simple operation and quick response, but easily influences the water ecology.
Disclosure of Invention
The invention aims to provide a method for realizing COD and NH of main pollution loads in overflow pollution4 +N, TP, etc., to effectively relieve the black and odorous water in the city in rainy days. Meanwhile, the sustained-release material is filled in the porous ball, so that the drug is convenient to recover and replace.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an in situ purification device to rainy day overflow pollutes, is applicable to near the river bank of the terminal row of mouth of rainwater pipe network, including installing at least a set of charging box on the river bank and installing the flexible baffle below near the row mouth of water surface, the charging box sets up on the river bank aslope, the one end that the charging box is close to the surface of water is equipped with the chamber door, be equipped with feeding device, chamber door and pivot control system and energy supply equipment in the charging box, energy supply equipment passes through chamber door and pivot control system control connection feeding device and chamber door.
Preferably, feeding device includes a plurality of porous balls of group, pulley and electronic pivot, a plurality of porous ball intussuseptions of group have the slow-release material, a plurality of porous balls of group establish ties through central rope, the one end that the chamber door was kept away from to central rope is around establishing on the pulley, be equipped with electronic pivot connection on the pulley, electronic pivot passes through chamber door and pivot control system control drive.
Preferably, the other end of the central rope close to the box door is provided with a counterweight in a connecting way.
Preferably, the slow release material comprises a slow release oxidation material and a slow release oxygen material.
Preferably, the slow release oxidizing material comprises CaO2、MgO2、2Na2CO3·3H2O2The slow-release oxidizing agent is prepared by using an oxygen-releasing material or an oxidizing agent as an active ingredient and adopting a melting forming method, an encapsulation method, a freeze-thaw method, an oil phase separation method, a sol-gel method and the like.
Preferably, the porous ball is also added with a mixture of a slow-release material and an adsorbent or other non-slow-release materials.
Preferably, the adsorbent comprises natural adsorbents such as zeolite and clay minerals or artificially synthesized adsorbents such as biochar and carbon nanotubes, and the particle size is 0.5-2 mm.
Preferably, the box door and the rotating shaft control system realize automatic control by installing a water level monitoring sensor in a pipeline at the tail end of the rainwater pipe network or in a water collecting pool near a drainage port of the rainwater pipeline.
The invention also provides a rainy day overflow pollution in-situ reduction method based on the slow release material, which is characterized by comprising the following steps of:
s1: monitoring a set water level through a water level sensor, opening a box door through a box door and rotating shaft control system when the water level sensor in a pipeline at the tail end of a rainwater pipeline network or a water collecting tank near a rainwater pipeline discharge port monitors that the water level reaches a set value, then opening an electric rotating shaft, positively rotating to drive a pulley to throw in a porous ball, allowing the porous ball to enter a water body under the action of gravity, and fully mixing overflow sewage with a slow-release material in the porous ball under the interception action of a flexible baffle arranged at the bottom of a river;
s2: when a water level sensor in a pipeline at the tail end of the rainwater pipeline network or in a water collecting pool near a drainage port of the rainwater pipeline monitors that the water level is reduced to be lower than a set water level, the box door and the rotating shaft control system are arranged to open the electric rotating shaft to reversely rotate at once or delay a certain time to drive the pulley to recover the porous balls, and after the porous balls are recovered, the box door and the rotating shaft control system control the closing of the box door.
Preferably, the set water level can set multistage gears, different gears control different numbers of electric rotating shafts, and each electric rotating shaft controls a certain number of pulleys connected with the central rope, so that the number of the put porous balls is adjusted.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
the functional material prepared by the slow release technology can reduce overflow pollution for a long time and mildly, and simultaneously reduces the influence of the material on the water ecology. In addition, the slow release material is filled in the porous ball connected by the central rope, so that the recovery and the replacement are convenient. The feeding device provided by the invention is composed of the feeding box arranged on the bank side of the discharge port and the underwater flexible baffle plate near the discharge port, so that the occupied area is small, and the construction investment is less. The device relies on the water level sensor in the terminal pipeline of rainwater pipe network or near rainwater pipeline row mouth catchment pond to start, and the rainy day device can start rapidly and put in the porous ball and deal with the overflow and pollute, avoids river course quality of water to receive the influence. When the discharge port does not overflow for a certain time, the porous balls can be recovered and stored in the box body, so that the service life of the slow-release material is effectively prolonged, and the influence on the water ecology is reduced; and the water can be kept for a long time without recovery, so that the black and odorous water is avoided. The device sets up multistage fender position according to the overflow water yield, and the quantity of porous ball is put in the adjustment, can effectively deal with the change of quality of water yield load. In addition, the inclined or vertical bottom of the box body ensures that no water is accumulated in the box body, and the water attached to the slow-release material can be dried, so that the consumption of the slow-release material in non-rainy days is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of an in-situ purification apparatus for overflow contamination in rainy days according to the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of an in-situ purification apparatus for overflow contamination in rainy days according to the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of an in-situ purification apparatus for overflow contamination in rainy days according to the present invention;
FIG. 4 is a schematic structural diagram of a slow-release material porous sphere in an in-situ purification device for overflow pollution in rainy days according to the present invention;
fig. 5 is a schematic flow chart of an in-situ purification method for overflow contamination in rainy days according to the present invention.
The numbers in the figure are as follows:
1. a feed box; 2. a porous ball; 3. a box door; 4. balancing weight; 5. a pulley; 6. an electric rotating shaft; 7. a box door and a rotating shaft control system; 8. an energy supply device; 9. a support pillar; 10. river banks; 11. a flexible baffle; 12. a slow release material.
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.
Example one
As shown in the attached drawings 1 and 4, the invention discloses an in-situ purification device and a method thereof aiming at the overflow pollution in rainy days; wherein device is cut down to rainy day overflow pollution normal position based on sustained-release material, contain install the charging box 1 on row's mouth river bank 10 and install the flexible baffle 11 below the near surface of water of row's mouth, 1 bottoms of charging box become certain slope, charging box 1 contains the porous ball 2 that is filled with sustained-release material 12 with the connection of central rope, 3 one end of chamber door that is close to central rope even have counter weight 4, the other end is fixed on pulley 5, install electronic pivot 6 on the pulley 5, electronic pivot 6 and chamber door 3 can be controlled by chamber door and pivot control system 7, the right side in 1 inside of charging box is installed to the energy supply equipment 8 of device, energy supply equipment 8 passes through chamber door and pivot control system 7 control connection feeding device and chamber door 3.
Further, the slow release material 12 is formed by mixing a slow release oxidation material and an adsorption material.
Further, the slow release oxidation material comprises CaO2、MgO2、2Na2CO3·3H2O2The slow-release oxidizing agent is prepared by using an oxygen-releasing material or an oxidizing agent as an active ingredient and adopting a melting forming method, an encapsulation method, a freeze-thaw method, an oil phase separation method, a sol-gel method and the like.
Further, a mixture of a slow release material 12 and an adsorbent or other non-slow release materials is also added into the porous ball 2. The adsorbent comprises natural adsorbents such as zeolite and clay minerals or artificially synthesized adsorbents such as biochar and carbon nanotubes, and has a particle size of 0.5-2 mm.
Further, the box door and rotation shaft control system 7 realizes automatic control by installing a water level monitoring sensor in the pipeline at the tail end of the rainwater pipe network or in a water collecting tank near the drainage port of the rainwater pipeline. The water level monitoring sensor can preset the water level, sets the water level to the third gear according to sewage discharge capacity, every time improves a fender position, starts an electronic pivot 6 more, and every electronic pivot 6 controls certain quantity and even has the pulley 5 of central rope to adjust the quantity of porous ball 2.
As shown in fig. 5, the invention also provides a method for in-situ reduction of overflow pollution in rainy days based on the slow release material, which comprises the following steps:
filling a slow release material 12 in a porous ball 2, wherein the porous ball 2 is connected and fixed on a pulley 5 of a charging box 1 through a central rope, the charging box 1 is fixed on a river bank 10 near a discharge opening, and the bottom of the charging box 1 has a certain gradient;
the water level sensor monitors and sets for the preset water level, and in rainy days, the device relies on the water level sensor automatic start in the terminal pipeline of rainwater pipe network or near rainwater pipeline row mouth catchment pond, when water level sensor monitors and sets for the water level, opens chamber door 3 and electronic pivot 6 of filling box 1 through chamber door and pivot control system 7, and porous ball 2 gets into near the water of row mouth under the effect of gravity and counter weight 4. By the interception of the underwater flexible baffle 11 near the discharge port, the overflow sewage can be fully mixed with the slow release material 12, thereby quickly reducing the middle COD and NH polluted by the overflow4 +N, TP and the like.
When the overflow water level of the discharge port is reduced to be lower than the set water level for one hour, the porous balls 2 are recovered and stored in the charging box 1 in a mode of the electric rotating shaft 6, so that the service life of the slow-release material 12 is effectively prolonged, and the influence on the water ecology is reduced; and the water can be kept for a long time without recovery, so that the black and odorous water is avoided. Especially in continuous rainy season, when the slow release material 12 is not suitable for frequent recovery, the water body dissolved oxygen can be maintained for a long time by virtue of the slow release performance of the slow release material, so that the phenomenon of black and odor is avoided. Meanwhile, the bottom of the box body in the inclined ground ensures that no water is accumulated in the box body, and the water attached to the slow-release material 12 can be dried, so that the consumption of the slow-release material 12 in non-rainy days is reduced.
Example two
As shown in fig. 2, on the basis of the first embodiment, the second embodiment replaces the structure according to the principle that the bottom of the charging box 1 has a certain gradient, the second embodiment adopts the charging box 1 with a rectangular flat bottom, at least one supporting column 9 is installed at the bottom of the charging box 1, and the charging box 1 is installed on the river bank 10 in an inclined manner through the supporting column 9.
EXAMPLE III
As shown in fig. 3, according to the technical solution of the present invention, a third embodiment is provided, and the third embodiment provides another installation manner of the feeding box 1, the feeding box 1 adopts a rectangular structure, the feeding box 1 is installed on a side wall of a river bank 10 and is located above river water, the structure of the feeding device in the feeding box 1 is similar to that of the first embodiment and the second embodiment, but a group of pulleys 5 is respectively installed in the feeding box 1 and on the top of the river bank 10, a group of pulleys is installed in the feeding box 1, another group of pulleys is installed on the top of the river bank, one end of a central rope is wound around the pulley in the feeding box 1 and then on the pulley on the top of the river bank 10, and an electric rotating shaft 6 is installed on the pulley on the top of the river bank 10. The mounting means of the feed box 1 that this embodiment three provided can be applicable to the situation that the plane does not have the space to set up the feed box on the river bank, can reduce to take up an area of, avoids influencing the pleasing to the eye of river bank simultaneously.
The functional material prepared by the slow release technology can reduce overflow pollution for a long time and mildly, and simultaneously reduces the influence of the material on the water ecology. In addition, the slow release material is filled in the porous ball connected by the central rope, so that the recovery and the replacement are convenient. The feeding device provided by the invention is composed of the feeding box arranged on the bank side of the discharge port and the underwater flexible baffle plate near the discharge port, so that the occupied area is small, and the construction investment is less. The device relies on the water level sensor in the terminal pipeline of rainwater pipe network or near rainwater pipeline row mouth catchment pond to start, and the rainy day device can start rapidly and put in the porous ball and deal with the overflow and pollute, avoids river course quality of water to receive the influence. When the discharge port does not overflow for a certain time, the porous balls can be recovered and stored in the box body, so that the service life of the slow-release material is effectively prolonged, and the influence on the water ecology is reduced; and the water can be kept for a long time without recovery, so that the black and odorous water is avoided. The device sets up multistage fender position according to the overflow water yield, and the quantity of porous ball is put in the adjustment, can effectively deal with the change of quality of water yield load. In addition, the inclined or vertical bottom of the box body ensures that no water is accumulated in the box body, and the water attached to the slow-release material can be dried, so that the consumption of the slow-release material in non-rainy days is reduced.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The utility model provides an in situ purification device to rainy day overflow pollution, is applicable to near riparian (10) of the terminal row of mouth of rainwater pipe network, its characterized in that, including installing on riparian (10) at least a set of charging box (1) and installing flexible baffle (11) near arranging the mouth under water, charging box (1) sets up on riparian (10) aslope, the one end that charging box (1) is close to the surface of water is equipped with chamber door (3), be equipped with charging device, chamber door and pivot control system (7) and energy supply equipment (8) in charging box (1), energy supply equipment (8) are through chamber door and pivot control system (7) control connection charging device and chamber door (3).
2. The in-situ purification device for the rainy-day overflow pollution according to claim 1, wherein the feeding device comprises a plurality of groups of porous balls (2), pulleys (5) and an electric rotating shaft (6), slow-release materials (12) are added into the groups of porous balls (2), the groups of porous balls (2) are connected in series through a central rope, one end of the central rope, far away from the box door (3), is wound on the pulleys (5), the pulleys (5) are provided with the electric rotating shaft (6) for connection, and the electric rotating shaft (6) is controlled and driven by the box door and a rotating shaft control system (7).
3. An in-situ purification device aiming at the overflow pollution in rainy days, according to claim 2, characterized in that the other end of the central rope close to the box door (3) is connected with a counterweight (4).
4. An in-situ purification device for overflow pollution in rainy days according to claim 2, wherein the slow release material (12) comprises a mixture of slow release oxidation material and adsorption material.
5. The in-situ cleaning device for overflow contamination in rainy days according to claim 4, wherein the slow release oxidation material comprises CaO2、MgO2、2Na2CO3·3H2O2The slow-release oxidizing agent is prepared by using an oxygen-releasing material or an oxidizing agent as an active ingredient and adopting a melting forming method, an encapsulation method, a freeze-thaw method, an oil phase separation method, a sol-gel method and the like.
6. An in-situ purification device aiming at the rainy day overflow pollution, according to claim 2, characterized in that the porous ball (2) is further added with a mixture of slow-release materials and adsorbents or other non-slow-release materials.
7. The in-situ purification device for overflow pollution in rainy days according to claim 6, wherein the adsorbent comprises natural adsorbents such as zeolite and clay minerals or artificially synthesized adsorbents such as biochar and carbon nanotubes, and the particle size is 0.5-2 mm.
8. An in-situ purification device for overflow contamination in rainy days according to claim 1, wherein the box door and rotation shaft control system (7) is automatically controlled by installing a water level monitoring sensor in the end pipe of the rain pipe network or in the water collecting tank near the drain of the rain pipe.
9. An in-situ purification method for overflow pollution in rainy days is characterized by comprising the following steps:
s1: the method comprises the steps that a set water level is monitored through a water level sensor, when the water level sensor in a pipeline at the tail end of a rainwater pipeline network or in a water collecting tank near a drainage port of the rainwater pipeline monitors that the water level reaches a set value, a box door (3) is opened through a box door and rotating shaft control system (7), then an electric rotating shaft (6) is opened, a pulley (5) is driven to be fed in through positive rotation, a porous ball (2) enters a water body under the action of gravity, a medicament mixing range is formed between a flexible baffle (11) and a river bank under the intercepting action of the flexible baffle (11) installed at the bottom of the river, and overflow sewage and slow-release materials (12) in the porous ball (2) are fully mixed in the range;
s2: when a water level sensor in a pipeline at the tail end of the rainwater pipeline network or in a water collecting pool near a drainage port of the rainwater pipeline monitors that the water level drops to be lower than a set water level, an electric rotating shaft (6) is opened at once or delayed for a certain time through a box door and rotating shaft control system (7) to reversely drive a pulley (5) to recover a porous ball (2), and after the porous ball (2) is recovered, the box door and rotating shaft control system (7) controls to close the box door (3).
10. An in-situ purification method for overflow pollution in rainy days according to claim 9, characterized in that the set water level can be set to multiple levels, different levels control different numbers of electric rotating shafts (6), each electric rotating shaft controls a certain number of pulleys connected with a central rope, thereby adjusting the number of the put porous balls (2).
CN202111079672.2A 2021-09-15 2021-09-15 In-situ purification device and method for rainy-day overflow pollution Active CN113716672B (en)

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KR20150071697A (en) * 2015-06-08 2015-06-26 한상관 Eco-friendly water purifier that combines clean water with pure water to produce electricity, while eliminating particulate pollutants, various wastes, and fluid pollutants contained in river water from point sources and non-polluting sources Systems and storm water depots apply here
CN107879564A (en) * 2017-12-18 2018-04-06 江苏博恩环境工程成套设备有限公司 A kind of in-situ treatment system for river course discharge outlet
CN108423917A (en) * 2017-12-27 2018-08-21 上海汀滢环保科技有限公司 A kind of pollutant fluxes combination unit and its technique for rainfall pumping station
CN111138048A (en) * 2020-03-23 2020-05-12 北京贝特斯联合科技有限公司 Intelligent river sewage treatment plant
CN112551671A (en) * 2021-01-04 2021-03-26 北京敦益科技有限公司 Sewage treatment device with breathing type suspension balls and treatment method

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