CN110005042B - Road surface sewage treatment plant - Google Patents
Road surface sewage treatment plant Download PDFInfo
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- CN110005042B CN110005042B CN201910408093.4A CN201910408093A CN110005042B CN 110005042 B CN110005042 B CN 110005042B CN 201910408093 A CN201910408093 A CN 201910408093A CN 110005042 B CN110005042 B CN 110005042B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
- E03F5/107—Active flow control devices, i.e. moving during flow regulation
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/10—Dividing the first rain flush out of the stormwater flow
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
一种路面污水处理装置，它涉及市政排水设施，具体涉及一种适用于降雨初期的路面污水处理装置。它要解决现有处理初雨污染的装置存在设备复杂、安装不易、运用不便和投入成本高的问题。装置包括：雨水进口、雨水缓冲槽、填料箱、雨水排放口、导轨链条和外壳；所述雨水缓冲槽内部设有旋转筛网；该装置组件少，易安装，占地面积小，投资小，运用方便，对初雨形成的污水能高效地进行固液分离，去除了地表径流中携带的渣土、悬浮物等大颗粒污染物，且能进一步去除水中COD、氮、磷及微小杂质，出水水质好，有效的减轻了初雨对下游雨水受纳水体环境的不利影响，弥补了现有雨水处理设备的不足，市场前景广阔，具有明显的社会效益和环境效益。
A pavement sewage treatment device relates to municipal drainage facilities, in particular to a pavement sewage treatment device suitable for the initial stage of rainfall. It needs to solve the problems of complicated equipment, difficult installation, inconvenient operation and high input cost in the existing device for treating primary rain pollution. The device includes: a rainwater inlet, a rainwater buffer tank, a stuffing box, a rainwater discharge outlet, a guide rail chain and a shell; the rainwater buffer tank is provided with a rotating screen; the device has few components, is easy to install, occupies a small area, and has a small investment. It is easy to use, and can effectively separate solid-liquid from the sewage formed by the first rain, remove large particle pollutants such as dregs and suspended solids carried in the surface runoff, and can further remove COD, nitrogen, phosphorus and tiny impurities in the water. The water quality is good, which effectively reduces the adverse impact of the first rain on the downstream rainwater receiving water environment, and makes up for the shortage of the existing rainwater treatment equipment. The market prospect is broad, and it has obvious social and environmental benefits.
Description
Technical Field
The invention relates to municipal drainage facilities, in particular to a road surface sewage treatment device suitable for the early stage of rainfall.
Background
The rain water in the early stage of rainfall is generally the rainfall with surface runoff with the thickness of 10-15 mm formed on the ground. In the early stage of rainfall, a large amount of acid gases, automobile exhaust, factory waste gas and other pollutant gases in the air are dissolved in the rainwater, and after the rainwater falls to the ground, the rainwater in the early stage contains a large amount of pollutants due to scouring of roofs, asphalt concrete roads and the like, so that the pollution degree of the rainwater in the early stage is higher and even exceeds that of common urban sewage. If the initial rainwater is directly discharged into a natural bearing water body, the water body is seriously polluted, the early rainwater is required to be treated, and the pollution degree in the later period of rainfall is relatively low. The natural approach is combined with artificial measures, so that the storage, permeation and purification of rainwater in urban areas are realized to the maximum extent on the premise of ensuring the safety of urban drainage and waterlogging prevention, and the utilization of rainwater resources and the ecological environment protection are promoted. For the aspect of ground sewage treatment, the technology at the present stage is still incomplete, and the sewage treatment is not thorough.
The patent application 201611066137.2 discloses a device for treating initial rain pollution in an automatic initial rain intercepting type gutter inlet device, but the device is complex, especially the driving structure is complex, so that the manufacturing and installation are not easy, the application is inconvenient, the used self-filling water discharging bag is easy to age and lose efficacy after being used for a long time, and the later maintenance cost of the device is high.
Disclosure of Invention
The invention aims to solve the problems of complex equipment, difficult installation, inconvenient application and high input cost of the conventional device for treating the primary rain pollution, and provides a road surface sewage treatment device.
A road surface sewage treatment device comprises: the rainwater inlet, the rainwater buffer tank, the stuffing box, the rainwater discharge port, the guide rail chain and the shell; a rotary screen is arranged in the rainwater buffer tank;
the rainwater inlet is arranged at the top of the shell; the rainwater inlet is communicated with the rainwater buffer tank; the rainwater buffer tank is arranged at the upper right part in the shell, and a mud bucket is arranged below the rainwater buffer tank; the top of the shell is provided with a well cover; the stuffing box is of a box body structure with an opening at the upper end and is arranged in the shell; the rear wall of the stuffing box is connected with the shell; the guide rail chain consists of a fixed part and a moving part; the guide rail chain is arranged in the shell; the fixed part of the guide rail chain is connected with the inner wall of the shell, and the moving part of the guide rail chain is connected with the packing plate; the filler plate is provided with fiber fillers; the water storage tank is arranged in the shell and is positioned below the stuffing box; the rainwater discharge port is arranged at the bottom of the water storage tank.
The rainwater inlet is communicated with the existing road surface rainwater and sewage drainage port or is set as an independent special inlet;
the stuffing box is positioned right below the well cover, and has a height difference with the outlet water of the mud bucket;
the number of the mounting layers of the filler plates is 3-60;
the fillingThe material plate is provided with holes, and the number of the holes is 300-10000 holes/m2The aperture is 1 mu m-2 cm;
the fiber packing is of an equally-divided multi-fold structure, each folded surface of the multi-fold structure is bound with a packing plate with the same size, and each folded surface has the same size as the cross section of the packing box;
the rainwater discharge port is connected with a municipal rainwater and sewage system;
the bottom of the water storage tank is also provided with a water leakage hole, and the water discharged from the water leakage hole is directly discharged into the environment;
the packing plate is taken out by dragging the moving piece of the guide rail chain, and the fiber packing is periodically cleaned or replaced;
the upper part of the shell is provided with a rainwater overflow port and is connected with a municipal rainwater and sewage system;
and carrying out periodical desilting on the mud bucket.
Compared with the prior device for treating the initial rain pollution, the device has the following advantages and beneficial effects:
1. the pavement sewage treatment device has the advantages of simple process, few equipment components, easy installation, small occupied area, no limitation to the problems of terrain, landform, energy shortage and the like, small investment, convenient application, good effluent quality, capability of making up the defects of the existing rainwater treatment equipment, wide market prospect and obvious social benefit and environmental benefit.
2. The road surface sewage treatment device of the invention runs automatically without power; the rotary screen mesh in the device automatically rotates under the action of rainwater scouring and gravity, and plays roles in prolonging the retention time of rainwater on the screen mesh, increasing the filtering effect and preventing the screen mesh from being blocked; the solid-liquid separation can be efficiently carried out on the sewage formed by the initial rain, and large-particle pollutants such as residue soil, suspended matters and the like carried in surface runoff are removed.
3. According to the pavement sewage treatment device, the polyester fiber filter cloth is adopted as the fiber filler, the device is corrosion-resistant, ageing-resistant and low in cost, after the multi-fold structure is adopted for superposition, the specific surface area is large, COD, nitrogen, phosphorus and micro impurities in water can be effectively removed after microorganisms are attached, the effluent quality is good, and the adverse effect of initial rain on the downstream rainwater receiving water environment is effectively reduced.
4. The pavement sewage treatment device is flexible and convenient to update; the guide rail chain is arranged, the maintenance is more convenient, the packing plate can be taken out through the moving member which pulls the guide rail chain, the fiber packing is regularly cleaned or replaced, the fiber packing is recycled, and the sustainability of the treatment effect is ensured.
5. According to the pavement sewage treatment device, the rainwater is filtered for 2-8 hours, so that the treatment effect can be ensured; the upper part of the shell is provided with a rainwater overflow pipe, so that the rainfall is prevented from increasing and exceeding the processing limit of the device, and the effect of relieving is achieved.
Drawings
Fig. 1 is a schematic view of a road surface sewage treatment device of the present invention, wherein 1 denotes a rainwater inlet, 2 denotes a rainwater buffer tank, 3 denotes a stuffing box, 4 denotes a rainwater discharge port, 5 denotes a water leakage hole, 6 denotes a rainwater overflow port, 7 denotes a rotary screen, 8 denotes a hopper, 9 denotes a manhole cover, 10 denotes a guide rail chain, 11 denotes a stuffing plate, 12 denotes a fiber stuffing, 13 denotes a housing, 14 denotes a fixing member, 15 denotes a moving member, and 16 denotes a water storage tank.
Detailed Description
The technical solution of the present invention is not limited to the following specific embodiments, but includes any combination of the specific embodiments.
The first embodiment is as follows: referring to fig. 1, the present embodiment provides a road surface sewage treatment device, which is characterized by comprising: the rainwater inlet 1, the rainwater buffer tank 2, the stuffing box 3, the rainwater discharge port 4, the guide rail chain 10 and the shell 13; a rotary screen 7 is arranged in the rainwater buffer tank 2;
the rainwater inlet 1 is arranged at the top of the shell 13; the rainwater inlet 1 is communicated with the rainwater buffer tank 2; the rainwater buffer tank 2 is arranged at the upper right part in the shell 13, and a mud bucket 8 is arranged below the rainwater buffer tank 2; the top of the shell 13 is provided with a well cover 9; the stuffing box 3 is of a box body structure with an opening at the upper end and is arranged in the shell 13; the rear wall of the stuffing box 3 is connected with the shell 13; the guide rail chain 10 is composed of a fixed part 14 and a moving part 15; the guide rail chain 10 is arranged in the shell 13; a fixed part 14 of the guide rail chain 10 is connected with the inner wall of the shell 13, and a moving part 15 of the guide rail chain 10 is connected with the packing plate 11; the filler plate 11 is provided with fiber fillers 12; the water storage tank 16 is arranged in the shell 13 and is positioned below the stuffing box 3; the rain water discharge port 4 is arranged at the bottom of the water storage tank 16.
In this embodiment, an application of a road surface sewage treatment device is as follows:
the primary rain directly enters a rainwater buffer tank 2 through a rainwater inlet 1 of the road surface sewage treatment device, large-particle pollutants are filtered out through a rotary screen 7 and then enter a stuffing box 3, and silt is deposited in a mud bucket 8; after rainwater entering the stuffing box 3 is filtered by the fiber stuffing 12 on the stuffing plate 11, COD, nitrogen, phosphorus and micro impurities in the water are removed; the effluent enters a water storage tank 16 and then enters a municipal rainwater and sewage system through a rainwater discharge port 4 or is directly discharged into the environment through a water leakage hole 5; the filtering time of the rainwater in the road surface sewage treatment device is 2-8 hours; when the rainfall is increased to exceed the treatment limit of the road surface sewage treatment device, the rainwater directly enters the municipal rainwater and sewage drainage system through the rainwater overflow port 6 arranged at the upper part of the shell 13; the manhole cover 9 is opened, the filler plate 11 is taken out by the moving member 15 dragging the guide rail chain 10, and the fiber filler 12 is periodically cleaned or replaced.
The second embodiment is as follows: the difference between the present embodiment and the specific embodiment is that the rainwater inlet 1 is communicated with the existing road surface rainwater and sewage outlet, or is provided as an independent and exclusive inlet. Other steps and parameters are the same as those in the first embodiment.
The third concrete implementation mode: the difference between this embodiment and the first embodiment is that the stuffing box 3 is located right below the well lid 9 and has a height difference with the outlet water of the mud bucket 8. Other steps and parameters are the same as those in the first embodiment.
The fourth concrete implementation mode: the difference between this embodiment and the first embodiment is that the rotary screen 7 rotates automatically by rain wash and gravity. Other steps and parameters are the same as those in the first embodiment.
In the present embodiment, the rotary screen 7 is a commercially available product that automatically rotates by a spiral gravity.
The fifth concrete implementation mode: the present embodiment is different from the first embodiment in that the number of the installed layers of the filler plates 11 is 3 to 60. Other steps and parameters are the same as those in the first embodiment.
The sixth specific implementation mode: the difference between the present embodiment and the first embodiment is that the filler plate 11 has openings, and the number of the openings is 300-10000 holes/m2The aperture is 1 μm-2 cm. Other steps and parameters are the same as those in the first embodiment.
The seventh embodiment: in contrast to the first embodiment, the fiber packing 12 is of an equally divided multi-fold structure, wherein each fold of the multi-fold structure is bound by a packing sheet 11 of the same size, and each fold is of the same size as the cross section of the stuffing box 3. Other steps and parameters are the same as those in the first embodiment.
The specific implementation mode is eight: unlike the first embodiment, the fibrous filler 12 is a polyester fiber filter cloth having a permeation particle diameter of 1 to 200 μm, a length of 20 to 200m, a width of 10 to 10m, and a thickness of 1 to 20 cm. Other steps and parameters are the same as those in the first embodiment.
In the embodiment, the fiber filler 12 is a commercially available product, and is low in price and wide in application.
The specific implementation method nine: the difference between the present embodiment and the present embodiment is that the rainwater drain port 4 is connected to a municipal rainwater and sewage system. Other steps and parameters are the same as those in the first embodiment.
The detailed implementation mode is ten: the difference between this embodiment and the first embodiment is that the bottom of the water storage tank 16 is further provided with a water leakage hole 5, and the water discharged from the water leakage hole 5 is directly discharged into the environment. Other steps and parameters are the same as those in the first embodiment.
When the road surface sewage treatment device can not be connected with the municipal rainwater and sewage system in the embodiment, the rainwater discharge port 4 is cancelled, the water leakage hole 5 is changed into the water leakage hole, and the discharged water is directly discharged into the environment.
The concrete implementation mode eleven: unlike the first embodiment, the packing plate 11 is taken out by the moving member 15 dragging the guide rail chain 10, and the fiber packing 12 is periodically cleaned or replaced. Other steps and parameters are the same as those in the first embodiment.
The specific implementation mode twelve: the difference between the embodiment and the specific embodiment is that the upper part of the shell 13 is provided with a rainwater overflow port 6 and is connected with a municipal rainwater and sewage system. Other steps and parameters are the same as those in the first embodiment.
In the present embodiment, the rainwater overflow port 6 is provided at the upper portion of the housing 13 to prevent the increase of the rainfall from exceeding the disposal limit of the device, thereby achieving a relief effect.
The specific implementation mode is thirteen: the present embodiment differs from the first embodiment in that the hopper 8 is periodically desilted. Other steps and parameters are the same as those in the first embodiment.
Pollutants with a particle size larger than 0.2mm are deposited in the mud bucket 8 of the embodiment.
The following examples were used to demonstrate the beneficial effects of the present invention:
example (b):
referring to fig. 1, the present embodiment provides a road surface sewage treatment device, which includes: the rainwater inlet 1, the rainwater buffer tank 2, the stuffing box 3, the rainwater discharge port 4, the guide rail chain 10 and the shell 13; a rotary screen 7 is arranged in the rainwater buffer tank 2;
the rainwater inlet 1 is arranged at the top of the shell 13; the rainwater inlet 1 is communicated with the rainwater buffer tank 2; the rainwater buffer tank 2 is arranged at the upper right part in the shell 13, and a mud bucket 8 is arranged below the rainwater buffer tank 2; the top of the shell 13 is provided with a well cover 9; the stuffing box 3 is of a box body structure with an opening at the upper end and is arranged in the shell 13; the rear wall of the stuffing box 3 is connected with the shell 13; the guide rail chain 10 is composed of a fixed part 14 and a moving part 15; the guide rail chain 10 is arranged in the shell 13; a fixed part 14 of the guide rail chain 10 is connected with the inner wall of the shell 13, and a moving part 15 of the guide rail chain 10 is connected with the packing plate 11; the filler plate 11 is provided with fiber fillers 12; the water storage tank 16 is arranged in the shell 13 and is positioned below the stuffing box 3; the rainwater discharge port 4 is arranged at the bottom of the water storage tank 16;
the rainwater inlet 1 is communicated with an existing road surface rainwater and sewage outlet;
the stuffing box 3 is positioned right below the well cover 9, and has a height difference with the outlet water of the mud bucket 8;
the rotary screen 7 automatically rotates under the action of rainwater scouring and gravity;
the number of the mounting layers of the filler plates 11 is 18;
the packing plate 11 is provided with openings, and the number of the openings is 5000 holes/m2The aperture is 0.2 cm;
the fiber packing 12 is of an equally-divided multi-fold structure, each folded surface of the multi-fold structure is bound with a packing plate 11 with the same size, and each folded surface has the same size with the cross section of the packing box 3;
the fiber filler 12 is polyester fiber filter cloth, the permeation particle size of the fiber filler is 10 micrometers, the length of the polyester fiber filter cloth is 20m, the width of the polyester fiber filter cloth is 1m, and the thickness of the polyester fiber filter cloth is 0.5 cm;
the rainwater discharge port 4 is connected with a municipal rainwater and sewage system;
the filler plate 11 is taken out through the guide rail chain 10, and the fiber filler 12 is periodically cleaned or replaced;
the rainwater overflow port 6 is arranged at the upper part of the shell 13 and is connected with a municipal rainwater and sewage system;
and carrying out periodical desilting on the mud bucket 8.
In the embodiment, the rotary screen 7 automatically rotates under the action of rainwater scouring and gravity, so that the retention time of rainwater on the screen is prolonged, the filtering effect is increased, and the screen is prevented from being blocked; the solid-liquid separation can be efficiently carried out on the sewage formed by the initial rain, and large-particle pollutants such as residue soil, suspended matters and the like carried in surface runoff are removed.
The fiber filler 12 is purchased in the embodiment, is corrosion-resistant, ageing-resistant and low in cost, has a large specific surface area after being superposed by adopting a multi-fold structure, can effectively remove COD, nitrogen, phosphorus and micro impurities in water after being attached with microorganisms, has good effluent quality, and effectively lightens the adverse effect of initial rain on the downstream rainwater receiving water environment.
Having set up guide rail chain 10 in this embodiment, it is more convenient to overhaul and maintain, takes out the packing plate through moving member 15 that pulls guide rail chain 10, regularly clears up or changes fibrous filler 12, recycles, and has guaranteed the sustainability of treatment effect.
In the road surface sewage treatment device in the embodiment, the rainwater is filtered for 3 hours, so that the treatment effect can be ensured; the upper part of the shell 13 is provided with a rainwater overflow port 6, so as to prevent the rainfall from increasing and exceeding the processing limit of the device, and play a role in relieving.
In the embodiment, the effluent quality of the rainwater discharging port 4 of the road surface sewage treatment device is as follows: the removal rate of COD is more than 30%, the removal rate of nitrogen and phosphorus is more than 20%, and the removal rate of suspended matters is more than 75%.
Claims (2)
1. A road surface sewage treatment device is characterized by comprising: the rainwater inlet (1), the rainwater buffer tank (2), the stuffing box (3), the rainwater discharge port (4), the guide rail chain (10) and the shell (13); a rotary screen (7) is arranged in the rainwater buffer tank (2);
the rainwater inlet (1) is arranged at the top of the shell (13); the rainwater inlet (1) is communicated with the rainwater buffer tank (2); the rainwater buffer tank (2) is arranged at the upper right part in the shell (13), and a mud bucket (8) is arranged below the rainwater buffer tank (2); the top of the shell (13) is provided with a well cover (9); the stuffing box (3) is of a box body structure with an opening at the upper end and is arranged in the shell (13); the rear wall of the stuffing box (3) is connected with the shell (13); the guide rail chain (10) consists of a fixed part (14) and a moving part (15); the guide rail chain (10) is arranged in the shell (13); a fixed part (14) of the guide rail chain (10) is connected with the inner wall of the shell (13), and a moving part (15) of the guide rail chain (10) is connected with the packing plate (11); the filler plate (11) is provided with fiber fillers (12); the water storage tank (16) is arranged in the shell (13) and is positioned below the stuffing box (3); the rainwater discharge port (4) is arranged at the bottom of the water storage tank (16);
the device is characterized in that the stuffing box (3) is positioned right below the well cover (9) and has a height difference with the outlet water of the mud bucket (8);
the number of the mounting layers of the filler plates (11) is 3-60;
the fiber packing (12) is of an equally-divided multi-fold structure, each folded surface of the multi-fold structure is bound with a packing plate (11) with the same size, and each folded surface has the same size with the cross section of the packing box (3);
the fiber filler (12) is polyester fiber filter cloth, the permeation particle size of the fiber filler is 1-200 mu m, the length of the polyester fiber filter cloth is 20-200 cm, the width of the polyester fiber filter cloth is 10-10 m, and the thickness of the polyester fiber filter cloth is 1-20 cm;
the packing plate (11) is provided with holes, and the number of the holes is 300-10000 holes/m2The aperture is 1 mu m-2 cm; the packing plate (11) is horizontally arranged in the packing box (3);
the bottom of the water storage tank (16) is also provided with a water leakage hole (5), and the water discharged from the water leakage hole (5) is directly discharged into the environment;
the packing plate (11) is taken out through a moving piece (15) dragging the guide rail chain (10) to periodically clean or replace the fiber packing (12);
and the upper part of the shell (13) is provided with a rainwater overflow port (6) and is connected with a municipal rainwater and sewage drainage system.
2. A road surface sewage treatment plant according to claim 1, characterised in that the storm water drain (4) is connected to a municipal storm sewage system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408093.4A CN110005042B (en) | 2019-05-15 | 2019-05-15 | Road surface sewage treatment plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408093.4A CN110005042B (en) | 2019-05-15 | 2019-05-15 | Road surface sewage treatment plant |
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| CN110005042A CN110005042A (en) | 2019-07-12 |
| CN110005042B true CN110005042B (en) | 2021-03-30 |
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| US20120228234A1 (en) * | 2011-03-08 | 2012-09-13 | Christopher Price | Filter Adapted for use in a Road Gully or Water Course |
| US9962638B1 (en) * | 2016-04-10 | 2018-05-08 | Michael Tucker | Removable dewatering device |
| CN107761925B (en) * | 2017-09-30 | 2021-04-27 | 武汉圣禹排水系统有限公司 | An integrated rainwater filter |
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|---|---|---|---|---|
| CA2384512A1 (en) * | 2001-05-11 | 2002-11-11 | Gilles Remon | Sewer basket and its support |
| US7588689B2 (en) * | 2006-09-25 | 2009-09-15 | Paoluccio John A | Catch basin filter absorber method for water decontamination |
| CN203065263U (en) * | 2012-12-27 | 2013-07-17 | 浙江桃花源环保科技有限公司 | Device for treating initial rainwater runoff pollution |
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| CN110005042A (en) | 2019-07-12 |
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