CN107806153B - Road rainwater treatment system and control method - Google Patents
Road rainwater treatment system and control method Download PDFInfo
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- CN107806153B CN107806153B CN201710916391.5A CN201710916391A CN107806153B CN 107806153 B CN107806153 B CN 107806153B CN 201710916391 A CN201710916391 A CN 201710916391A CN 107806153 B CN107806153 B CN 107806153B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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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
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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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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Abstract
The invention provides a road rainwater treatment system which comprises a municipal rainwater trunk pipe and a rainwater treatment unit, wherein the municipal rainwater trunk pipe is connected with a natural water body, the position of a water inlet of a first diversion well is the front side of the first diversion well, and the position of a first water outlet of the first diversion well is the rear side of the first diversion well; the water inlet of the first diversion well is communicated with the municipal rainwater trunk pipe on the front side of the first diversion well, the first water outlet of the first diversion well is communicated with the municipal rainwater trunk pipe on the rear side of the first diversion well, and the cut-off device is arranged at the first water outlet of the first diversion well; the second water outlet of the first flow dividing well is connected with the water inlet of the second flow dividing well, and the first water outlet of the second flow dividing well is connected with a storage regulation facility; and a second water outlet of the second flow dividing well is connected with an online processing device. The system provided by the invention can fully purify the water body and ensure the water quality safety of the water body discharged into the natural water body.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a road rainwater treatment system and a control method.
Background
A municipal rainwater trunk pipe is arranged below a municipal road, and in sunny days and rainfall, sewage and initial rain along the road can enter the rainwater trunk pipe below the municipal road from a rainwater port beside the municipal road and then are directly discharged to a natural water body.
At present, water entering a rainwater trunk pipe is directly discharged to a natural water body without any treatment, which inevitably causes serious pollution to the natural water body, for example, domestic sewage which is misconnected and mixed in sunny days enters the rainwater trunk pipe and is discharged to the natural water body to pollute the natural water body; initial rainwater containing a large amount of pollutants enters the rainwater main pipe and is discharged to natural water without any treatment, and the natural water is also seriously polluted.
Therefore, there is a strong need for a system for treating sewage and/or rainwater entering a rainwater trunk.
Disclosure of Invention
In order to solve the problems, the invention provides a road rainwater treatment system, which comprises a municipal rainwater trunk pipe and a rainwater treatment unit, wherein the municipal rainwater trunk pipe is connected with a natural water body,
the rainwater treatment unit comprises a first diversion well, a second diversion well, a flow stopping device, a storage regulation facility, an online treatment device and a flow control device, wherein the first diversion well is arranged on the municipal rainwater trunk pipe, and when the first diversion well is of a groove type, the flow stopping device is not arranged;
the position of a water inlet of the first diversion well is the front side of the first diversion well, and the position of a first water outlet of the first diversion well is the rear side of the first diversion well;
the water inlet of the first diversion well is communicated with the municipal rainwater trunk pipe on the front side of the first diversion well, the first water outlet of the first diversion well is communicated with the municipal rainwater trunk pipe on the rear side of the first diversion well, and the cut-off device is arranged at the first water outlet of the first diversion well; the second water outlet of the first diversion well is connected with the water inlet of the second diversion well, the first water outlet of the second diversion well is connected with the water inlet of a storage regulating facility, and the water outlet of the storage regulating facility is connected with a sewage treatment plant through a sewage pipeline; a second water outlet of the second diversion well is connected with a water inlet of an online processing device, and a water outlet of the online processing device is communicated with the municipal rainwater trunk pipe on the rear side of the first diversion well;
the flow control device is arranged at the second water outlet of the first split well or respectively arranged at the first water outlet of the second split well and the second water outlet of the second split well.
According to the invention, the rainwater in the storage facility is discharged to a sewage treatment plant by gravity or by pump drainage.
According to the invention, the system further comprises a mechanical pump for delivering water in the storage facility to a sewage treatment plant.
According to the invention, the municipal rainwater trunk pipe is provided with one or more rainwater treatment units as described above, and when more than two rainwater treatment units are provided, the latter rainwater treatment unit is arranged behind the communication part of the water outlet of the online treatment device in the former rainwater treatment unit and the municipal rainwater trunk pipe, and the separation distance is the same or different according to the pollution condition, for example, the specific range of the separation distance is 50-1000 m.
According to the invention, the first and second diversion wells may be slotted, weir, slotted weir, open-bottom, etc., respectively.
According to the invention, the cut-off device is characterized in that a fixed weir is arranged at a first water outlet of the first diversion well; or a water switch.
According to the invention, the hydraulic switch is selected from a valve, a gate, a flap valve or a weir gate; preferably a ball valve, a closure flap valve, an upward opening gate, a rotary weir gate, a hydraulic overturning weir gate or a downward opening weir gate.
It will be appreciated by those skilled in the art that the flow control device can control the flow rate and the on/off of the media.
According to the invention, the flow control device is selected from the group consisting of a gate, a weir gate, a float cut-off, a gate valve, a butterfly or ball valve, a hydrocyclone constant flow device.
According to the invention, the storage facility is a storage tank or a storage facility with a infiltration function.
It will be appreciated by those skilled in the art that the storage facility is of a type having a body of water stored.
Preferably, the storage facility with the infiltration function is selected from a permeable basin or a rainwater module.
According to the invention, the rainwater module refers to a modular rainwater storage device, such as the modular rainwater storage device described in the patent document CN205637079U, in particular the rainwater module described in the embodiments of the specification and the attached drawings.
Preferably, the rainwater module comprises a plurality of arched regulating and storing units arranged side by side, end covers clamped with two ends of the regulating and storing units, and a gravel layer laid at the bottom of the regulating and storing units, wherein perforated pipes are arranged in the gravel layer at the bottom of the regulating and storing units; and a permeable geotextile layer is laid on the gravel layer at the bottom of the first storage regulating unit arranged along the water flow direction.
The invention also provides a control method of the road rainwater treatment system, when the flow control device is arranged at the second water outlet of the first diversion well, the control method comprises the following steps:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; the rainwater trunk misconnection joins in marriage the domestic sewage that connects and gets into second reposition of redundant personnel well, first delivery port through second reposition of redundant personnel well flows into the regulation facility, domestic sewage in the regulation facility flows to sewage treatment plant through the action of gravity and handles, when the water yield surpassed the biggest overflow who leads to sewage treatment plant's cut dirty pipe, domestic sewage can be stored in the regulation facility, when the water yield in the regulation facility reaches the maximum water storage capacity, domestic sewage flows into online processing apparatus through the second delivery port of second reposition of redundant personnel well, domestic sewage after online processing apparatus handles directly discharges the rainwater trunk again.
When raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; the rainwater trunk misconnection connects the mixed sewage that forms of domestic sewage that thoughtlessly connects and the rainwater mouth that gets into the rainwater trunk through the town road line gets into the second reposition of redundant personnel well, first delivery port through the second reposition of redundant personnel well flows into the regulation facility, the mixed sewage in the regulation facility flows to sewage treatment plant through the action of gravity and handles, when the water yield exceeded the maximum excess flow of the sewage pipe that cuts leading to sewage treatment plant, mixed sewage can be stored in the regulation facility, when the water yield in the regulation facility reaches the maximum water storage capacity, the second delivery port through the second reposition of redundant personnel well of mixed sewage flows into online processing apparatus, the mixed sewage after online processing apparatus handles directly discharges the rainwater trunk again.
When the water quantity exceeds the maximum processing capacity of the online processing device during rainfall, the flow control device arranged at the second water outlet of the first diversion well is closed, the cut-off device arranged at the first water outlet of the first diversion well is in an open state, or the first diversion well is in a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, the mixed sewage is directly discharged into a natural water body.
According to the invention, when the system comprises a mechanical pump, the control method comprises:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; the rainwater trunk misconnection connects the domestic sewage that thoughtlessly connects and gets into second reposition of redundant personnel well, first delivery port through second reposition of redundant personnel well flows into the regulation facility, domestic sewage in the regulation facility is carried sewage treatment plant through the mechanical pump and is handled, when the water yield surpassed the maximum flow of pump bank, domestic sewage can be stored in the regulation facility, when the water yield in the regulation facility reaches the maximum water storage capacity, domestic sewage flows into online processing apparatus through the second delivery port of second reposition of redundant personnel well, domestic sewage after online processing apparatus handles directly discharges the rainwater trunk again.
It will be appreciated by those skilled in the art that domestic sewage is pumped mechanically to a sewage treatment plant while flowing into a storage facility, i.e. for the purpose of on-line treatment of domestic sewage, where the storage facility acts as a buffer even if the flow of domestic sewage into the sewage treatment plant is kept within the maximum throughput of the sewage treatment plant.
When raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; the rainwater trunk misconnection connects the mixed sewage that connects of domestic sewage and the rainwater that gets into the rainwater trunk through the inlet for stom water along the town road line formed and gets into the second reposition of redundant personnel well, first delivery port inflow regulation facility through the second reposition of redundant personnel well, the mixed sewage in the regulation facility is carried to sewage treatment plant through the mechanical pump and is handled, when the water yield exceeded the maximum flow of pump bank, mixed sewage can be stored in the regulation facility, when the water yield in the regulation facility reaches the maximum water storage capacity, the second delivery port inflow on-line treatment device of mixed sewage through the second reposition of redundant personnel well, the mixed sewage after on-line treatment device handles directly discharges the rainwater trunk again.
When the water quantity exceeds the maximum processing capacity of the online processing device during rainfall, the flow control device arranged at the second water outlet of the first diversion well is closed, the cut-off device arranged at the first water outlet of the first diversion well is in an open state, or the first diversion well is in a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, the mixed sewage is directly discharged into a natural water body.
The invention also provides a control method of the road rainwater treatment system, when the flow control devices are respectively arranged at a first water outlet of a second diversion well and a second water outlet of the second diversion well, the flow control device arranged at the first water outlet of the second diversion well is a first flow control device, and the flow control device arranged at the second water outlet of the second diversion well is a second flow control device; the control method comprises the following steps:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the first flow control device and the second flow control device are in an open state; the rainwater trunk misconnection joins in marriage the domestic sewage that connects and gets into the second reposition of redundant personnel well, first delivery port and the first flow control device through the second reposition of redundant personnel well flow into the regulation facility, domestic sewage in the regulation facility flows to sewage treatment plant through the action of gravity and handles, when the water yield exceeds the biggest overflow who leads to sewage treatment plant's interception dirt pipe, domestic sewage can be stored in the regulation facility, when the water yield in the regulation facility reaches the maximum water storage capacity, close first flow control device, domestic sewage flows into online processing apparatus through the second delivery port and the second flow control device of second reposition of redundant personnel well, domestic sewage after online processing apparatus handles directly discharges the rainwater trunk again.
When raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the first flow control device and the second flow control device are in an open state; the sewage treatment method comprises the following steps that domestic sewage which is in misconnection and mixed connection with a rainwater trunk and rainwater which enters the rainwater trunk through a rainwater inlet along a municipal road enter a second diversion well, the domestic sewage flows into a storage regulation facility through a first water outlet of the second diversion well and a first flow control device, mixed sewage in the storage regulation facility flows into a sewage treatment plant through the action of gravity for treatment, when the water quantity exceeds the maximum overflow quantity of a sewage interception pipe leading to the sewage treatment plant, the mixed sewage can be stored in the storage regulation facility, when the water quantity in the storage regulation facility reaches the maximum water storage quantity, the first flow control device is closed, the mixed sewage flows into an online treatment device through a second water outlet of the second diversion well and the second flow control device, and the mixed sewage treated by the online treatment device is directly discharged into the rainwater trunk.
And during rainfall, when the water quantity exceeds the maximum treatment capacity of the online treatment device, closing the second flow control device, and enabling the cut-off device arranged at the first water outlet of the first diversion well to be in an open state, or when the first diversion well is of a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, directly discharging the mixed sewage into a natural water body.
According to the invention, when the system comprises a mechanical pump, the control method comprises:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the first flow control device and the second flow control device are in an open state; the rainwater trunk misconnection joins in marriage the domestic sewage that connects and gets into the second reposition of redundant personnel well, first delivery port and the first flow control device through the second reposition of redundant personnel well flow into regulation facility, domestic sewage in the regulation facility is carried to sewage treatment plant through the mechanical pump and is handled, when the water yield exceeded the maximum flow of pump bank, domestic sewage can be stored in the regulation facility, when the water yield in the regulation facility reaches the maximum water storage capacity, close first flow control device, domestic sewage flows into online processing apparatus through the second delivery port and the second flow control device of second reposition of redundant personnel well, domestic sewage after online processing apparatus handles directly discharges the rainwater trunk again.
It will be appreciated by those skilled in the art that domestic sewage is pumped mechanically to a sewage treatment plant while flowing into a storage facility, i.e. for the purpose of on-line treatment of domestic sewage, where the storage facility acts as a buffer even if the flow of domestic sewage into the sewage treatment plant is kept within the maximum throughput of the sewage treatment plant.
When raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the first flow control device and the second flow control device are in an open state; the mixed sewage formed by the domestic sewage which is misconnected and mixed with the rainwater entering the rainwater trunk pipe through the rainwater inlet along the municipal road enters the second shunt well, the domestic sewage flows into the regulation and storage facility through the first water outlet of the second shunt well and the first flow control device, the mixed sewage in the regulation and storage facility is conveyed to a sewage treatment plant through a mechanical pump for treatment, when the water quantity exceeds the maximum flow of a pump bank, the mixed sewage can be stored in the regulation and storage facility, when the water quantity in the regulation and storage facility reaches the maximum water storage quantity, the first flow control device is closed, the mixed sewage flows into the online treatment device through the second water outlet of the second shunt well and the second flow control device, and the mixed sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe.
And during rainfall, when the water quantity exceeds the maximum treatment capacity of the online treatment device, closing the second flow control device, and enabling the cut-off device arranged at the first water outlet of the first diversion well to be in an open state, or when the first diversion well is of a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, directly discharging the mixed sewage into a natural water body.
Has the advantages that:
the invention provides a road rainwater treatment system and a control method, wherein a rainwater treatment unit is arranged on a municipal rainwater trunk pipe, so that domestic sewage which is misconnected and mixed with the rainwater trunk pipe and/or rainwater which enters the rainwater trunk pipe through a rainwater inlet along a municipal road are subjected to twice diversion through a first diversion well and a second diversion well, the domestic sewage which is misconnected and mixed with the rainwater trunk pipe and/or primary rainwater flow into a storage regulation facility, and the sewage flows into the storage regulation facility while being pumped to a sewage treatment plant by a mechanical pump for systematic treatment; the aim of on-line treatment of the sewage is achieved, and the regulation and storage facility plays a role in buffering, namely, the flow of the sewage entering the sewage treatment plant is kept within the maximum treatment capacity range of the sewage treatment plant. When the water amount in the storage facility reaches the maximum water storage amount and exceeds the maximum overflow amount of a sewage interception pipe leading to a sewage treatment plant, the sewage flows into the online treatment device again, is treated by the online treatment device and then is directly discharged to a rainwater trunk pipe. The road rainwater treatment system provided by the invention can fully purify the water body, and the purified water body is discharged into the natural water body, so that the water quality safety of the discharged natural water body is ensured.
Drawings
FIG. 1 road rain water treatment system.
Wherein, 1 is municipal administration rainwater main, 2 is the natural water, 3 is first reposition of redundant personnel well, 4 is first reposition of redundant personnel well water inlet, 5 is the first delivery port of first reposition of redundant personnel well, 6 is first reposition of redundant personnel well second delivery port, 7 is open weir door down, 8 is the gate, 9 is second reposition of redundant personnel well, 10 is the first delivery port of second reposition of redundant personnel well, 11 is the second delivery port of second reposition of redundant personnel well, 12 is the on-line treatment pond, 13 is the regulation pond.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that various changes or modifications can be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents also fall within the scope of the invention.
Example 1
The road rainwater treatment system shown in fig. 1, wherein a municipal rainwater trunk pipe 1 is connected with a natural water body 2, a first diversion well 3 is arranged on the municipal rainwater trunk pipe 1, the position of a water inlet 4 of the first diversion well 3 is the front side of the first diversion well 3, and the position of a first water outlet 5 of the first diversion well 3 is the rear side of the first diversion well 3;
the water inlet 4 of the first diversion well 3 is communicated with the municipal rainwater trunk 1 at the front side of the first diversion well 3, the first water outlet 5 of the first diversion well 3 is communicated with the municipal rainwater trunk 1 at the rear side of the first diversion well 3, and the downward-opening weir gate 7 is arranged at the first water outlet 5 of the first diversion well 3; the second water outlet 6 of the first diversion well 3 is positioned on the side wall of the first diversion well 3, the second water outlet 6 of the first diversion well 3 is connected with the water inlet of the second diversion well 9, the first water outlet 10 of the second diversion well 9 is connected with the water inlet of the storage tank 13, and the water outlet of the storage tank 13 is connected with a sewage treatment plant through a sewage pipeline; a second water outlet 11 of the second diversion well 9 is connected with a water inlet of an online treatment pool 12, and a water outlet of the online treatment pool 12 is communicated with the municipal rainwater trunk pipe 1 at the rear side of the first diversion well 3; the gate 8 is arranged at the second water outlet 6 of the first flow dividing well 3.
The rainwater treatment system is arranged at one position on the rainwater main pipe at intervals of 50-1000 m.
Example 2
A control method of the road rainwater treatment system in embodiment 1, the control method comprising:
in sunny days, a lower opening weir gate (or a gate) arranged at a first water outlet of a first diversion well is in a closure state, and a gate arranged at a second water outlet of the first diversion well is in an open state; the rainwater trunk misconnection joins in marriage the domestic sewage that connects and gets into second reposition of redundant personnel well, first delivery port through second reposition of redundant personnel well flows into the regulation pond, domestic sewage in the regulation pond flows to sewage treatment plant through the action of gravity and handles, when the water yield surpassed the biggest overflow volume that leads to sewage treatment plant's the cut dirty pipe, domestic sewage can be stored in the regulation pond, when the water yield in the regulation pond reaches the maximum water storage capacity, domestic sewage flows into online processing apparatus through the second delivery port of second reposition of redundant personnel well, domestic sewage after online processing apparatus handles directly discharges the rainwater trunk again.
During rainfall, a lower opening weir gate (or a gate) arranged at a first water outlet of a first diversion well is in a closure state, and a gate arranged at a second water outlet of the first diversion well is in an opening state; the misconnection of rainwater main pipe is thoughtlessly connect the mixed sewage that forms of rainwater that connects and the inlet for stom water that gets into the rainwater main pipe through the town road along the line gets into second reposition of redundant personnel well, first delivery port through second reposition of redundant personnel well flows into the regulation pond, the mixed sewage in the regulation pond flows to sewage treatment plant through the action of gravity and handles, when the water yield surpassed the biggest overflow volume of the dirt intercepting pipe leading to sewage treatment plant, mixed sewage can be stored in the regulation pond, when the water yield in the regulation pond reaches the biggest water storage capacity, mixed sewage flows into online processing apparatus through the second delivery port of second reposition of redundant personnel well, mixed sewage after online processing apparatus handles directly discharges the rainwater main pipe again.
During rainfall, when the water yield exceeded online processing apparatus's maximum throughput, closed the gate that first reposition of redundant personnel well's second delivery port department set up, the mixed sewage that rainwater trunk misconnection misconnected domestic sewage that connects and the rainwater that gets into the rainwater trunk through the inlet for stom water along the town road along the line formed can be deposited in first reposition of redundant personnel well, causes the liquid level of first reposition of redundant personnel well to rise, and at this moment, the open weir door (or gate) that sets up at first delivery port department of first reposition of redundant personnel well is in the open mode, and the mixed sewage directly discharges into natural water.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A road rainwater treatment system is characterized by comprising a municipal rainwater trunk pipe and a rainwater treatment unit, wherein the municipal rainwater trunk pipe is connected with a natural water body,
the rainwater treatment unit comprises a first diversion well, a second diversion well, a flow stopping device, a storage regulation facility, an online treatment device and a flow control device, wherein the first diversion well is arranged on the municipal rainwater trunk pipe, and when the first diversion well is of a groove type, the flow stopping device is not arranged;
the position of a water inlet of the first diversion well is the front side of the first diversion well, and the position of a first water outlet of the first diversion well is the rear side of the first diversion well;
the water inlet of the first diversion well is communicated with the municipal rainwater trunk pipe on the front side of the first diversion well, the first water outlet of the first diversion well is communicated with the municipal rainwater trunk pipe on the rear side of the first diversion well, and the cut-off device is arranged at the first water outlet of the first diversion well; the second water outlet of the first diversion well is connected with the water inlet of the second diversion well, the first water outlet of the second diversion well is connected with the water inlet of a storage regulating facility, and the water outlet of the storage regulating facility is connected with a sewage treatment plant through a sewage pipeline; a second water outlet of the second diversion well is connected with a water inlet of an online processing device, and a water outlet of the online processing device is communicated with the municipal rainwater trunk pipe on the rear side of the first diversion well;
the flow control device is arranged at a second water outlet of the first split well or respectively arranged at a first water outlet of the second split well and a second water outlet of the second split well;
when more than two rainwater treatment units are arranged, the latter rainwater treatment unit is arranged behind the communication part of the water outlet of the online treatment device in the former rainwater treatment unit and the municipal rainwater trunk pipe, the spacing distance is the same or different, and is 50-1000m according to the pollution condition.
2. The road stormwater treatment system as claimed in claim 1, wherein the stormwater in the storage facility is discharged to a sewage treatment plant by gravity or by pump drainage;
when a pump-out approach is used, the system also includes a mechanical pump for delivering water in the storage facility to the sewage treatment plant.
3. The road stormwater treatment system of claim 1, wherein the first and second diversion wells may be slotted, weir, slotted weir, under-opening, respectively.
4. The road stormwater treatment system as claimed in claim 1, wherein the cut-off device is a fixed weir provided at a first water outlet of the first diverter well; or a water switch;
5. the road stormwater treatment system as claimed in claim 4, wherein the water switch is selected from a valve, gate, flap or weir.
6. The road stormwater treatment system of claim 5, wherein the water switch is selected from a ball valve, a cut-off flap valve, an upwardly opening gate, a rotating weir, a hydraulically inverting weir, or a downwardly opening weir.
7. The road stormwater treatment system of claim 1, wherein the flow control device is selected from the group consisting of gates, weirs, float cut-off devices, gate valves, butterfly or ball valves, hydrocyclone constant flow devices.
8. The road stormwater treatment system according to claim 1, wherein the storage facility is a storage tank or a storage facility with an infiltration function.
9. The road stormwater treatment system as claimed in claim 8, wherein the downpermeable storage facility is selected from a permeable basin or a stormwater module;
the rainwater module comprises a plurality of arched regulating and storing units arranged side by side, end covers clamped with two ends of the regulating and storing units and a gravel layer laid at the bottom of the regulating and storing units, and perforated pipes are arranged in the gravel layer at the bottom of the regulating and storing units; and a permeable geotextile layer is laid on the gravel layer at the bottom of the first storage regulating unit arranged along the water flow direction.
10. A control method for a road storm water treatment system as claimed in any one of claims 1 to 9 wherein said flow control means is provided at the second outlet of the first diverter well, said control method comprising:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; domestic sewage which is misconnected and mixed with the rainwater trunk pipe enters a second diversion well, flows into a storage regulating facility through a first water outlet of the second diversion well, the domestic sewage in the storage regulating facility flows into a sewage treatment plant for treatment under the action of gravity, the domestic sewage can be stored in the storage regulating facility when the water quantity exceeds the maximum overflow quantity of a sewage interception pipe leading to the sewage treatment plant, the domestic sewage flows into an online treatment device through a second water outlet of the second diversion well when the water quantity in the storage regulating facility reaches the maximum water storage quantity, and the domestic sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe;
when raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; the mixed sewage formed by the domestic sewage which is misconnected and mixed with the rainwater entering the rainwater trunk pipe through a rainwater inlet along the municipal road enters a second diversion well, flows into a regulation and storage facility through a first water outlet of the second diversion well, the mixed sewage in the regulation and storage facility flows into a sewage treatment plant for treatment under the action of gravity, when the water quantity exceeds the maximum overflow quantity of a sewage interception pipe leading to the sewage treatment plant, the mixed sewage can be stored in the regulation and storage facility, when the water quantity in the regulation and storage facility reaches the maximum water storage quantity, the mixed sewage flows into an online treatment device through a second water outlet of the second diversion well, and the mixed sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe;
when the water quantity exceeds the maximum processing capacity of the online processing device during rainfall, the flow control device arranged at the second water outlet of the first diversion well is closed, the cut-off device arranged at the first water outlet of the first diversion well is in an open state, or the first diversion well is in a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, the mixed sewage is directly discharged into a natural water body.
11. The control method according to claim 10, when the system includes a mechanical pump, the control method comprising:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; domestic sewage which is misconnected and mixed with the rainwater trunk pipe enters a second diversion well, flows into a storage regulating facility through a first water outlet of the second diversion well, the domestic sewage in the storage regulating facility is conveyed to a sewage treatment plant through a mechanical pump for treatment, the domestic sewage is stored in the storage regulating facility when the water quantity exceeds the maximum flow rate of pump discharge, the domestic sewage flows into an online treatment device through a second water outlet of the second diversion well when the water quantity in the storage regulating facility reaches the maximum water storage quantity, and the domestic sewage treated by the online treatment device is directly discharged to the rainwater trunk pipe;
when raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the flow control device arranged at the second water outlet of the first diversion well is in an opening state; the mixed sewage formed by the domestic sewage which is misconnected and mixed with the rainwater entering the rainwater trunk pipe through a rainwater inlet along the municipal road enters a second diversion well, flows into a regulation and storage facility through a first water outlet of the second diversion well, the mixed sewage in the regulation and storage facility is conveyed to a sewage treatment plant through a mechanical pump for treatment, when the water quantity exceeds the maximum flow of pump drainage, the mixed sewage is stored in the regulation and storage facility, when the water quantity in the regulation and storage facility reaches the maximum water storage quantity, the mixed sewage flows into an online treatment device through a second water outlet of the second diversion well, and the mixed sewage treated by the online treatment device is directly discharged to the rainwater trunk pipe;
when the water quantity exceeds the maximum processing capacity of the online processing device during rainfall, the flow control device arranged at the second water outlet of the first diversion well is closed, the cut-off device arranged at the first water outlet of the first diversion well is in an open state, or the first diversion well is in a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, the mixed sewage is directly discharged into a natural water body.
12. The control method according to claim 10, wherein the flow control device is a first flow control device disposed at a first water outlet of a second split well and a second flow control device disposed at a second water outlet of the second split well when the flow control devices are disposed at the first water outlet of the second split well and the second water outlet of the second split well, respectively; the control method comprises the following steps:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the first flow control device and the second flow control device are in an open state; domestic sewage which is misconnected and mixed with the rainwater trunk pipe enters a second diversion well, flows into a storage regulating facility through a first water outlet and a first flow control device of the second diversion well, the domestic sewage in the storage regulating facility flows into a sewage treatment plant for treatment under the action of gravity, the domestic sewage can be stored in the storage regulating facility when the water quantity exceeds the maximum overflow quantity of a sewage interception pipe leading to the sewage treatment plant, when the water quantity in the storage regulating facility reaches the maximum water storage quantity, the first flow control device is closed, the domestic sewage flows into an online treatment device through a second water outlet and a second flow control device of the second diversion well, and the domestic sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe;
when raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the first flow control device and the second flow control device are in an open state; the mixed sewage formed by the domestic sewage which is misconnected and mixed with the rainwater entering the rainwater trunk pipe through a rainwater inlet along the municipal road enters a second diversion well, the mixed sewage flows into a storage facility through a first water outlet of the second diversion well and a first flow control device, the mixed sewage in the storage facility flows into a sewage treatment plant for treatment under the action of gravity, when the water quantity exceeds the maximum overflow quantity of a sewage interception pipe leading to the sewage treatment plant, the mixed sewage can be stored in the storage facility, when the water quantity in the storage facility reaches the maximum water storage quantity, the first flow control device is closed, the mixed sewage flows into an online treatment device through a second water outlet of the second diversion well and the second flow control device, and the mixed sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe;
and during rainfall, when the water quantity exceeds the maximum treatment capacity of the online treatment device, closing the second flow control device, and enabling the cut-off device arranged at the first water outlet of the first diversion well to be in an open state, or when the first diversion well is of a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, directly discharging the mixed sewage into a natural water body.
13. The control method of claim 10, wherein when the system includes a mechanical pump, the flow control devices are respectively disposed at a first outlet of the second split well and a second outlet of the second split well, the flow control device disposed at the first outlet of the second split well is a first flow control device, and the flow control device disposed at the second outlet of the second split well is a second flow control device, the control method comprising:
in sunny days, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or the first diversion well is in a groove type, and is in an intercepting state; the first flow control device and the second flow control device are in an open state; domestic sewage which is misconnected and mixed with the rainwater trunk pipe enters a second diversion well, the domestic sewage flows into a storage and regulation facility through a first water outlet and a first flow control device of the second diversion well, the domestic sewage in the storage and regulation facility is conveyed to a sewage treatment plant through a mechanical pump for treatment, the domestic sewage is stored in the storage and regulation facility when the water quantity exceeds the maximum flow of a pump row, the first flow control device is closed when the water quantity in the storage and regulation facility reaches the maximum water storage quantity, the domestic sewage flows into an online treatment device through a second water outlet and a second flow control device of the second diversion well, and the domestic sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe;
when raining, the intercepting device arranged at the first water outlet of the first diversion well is in an intercepting state, or when the first diversion well is in a groove type, the intercepting device is in an intercepting state; the first flow control device and the second flow control device are in an open state; the mixed sewage formed by the domestic sewage which is misconnected and mixed with the rainwater entering the rainwater trunk pipe through a rainwater inlet along the municipal road enters a second diversion well, the mixed sewage flows into a regulation and storage facility through a first water outlet and a first flow control device of the second diversion well, the mixed sewage in the regulation and storage facility is conveyed to a sewage treatment plant through a mechanical pump for treatment, the mixed sewage is stored in the regulation and storage facility when the water quantity exceeds the maximum flow of a pump row, the first flow control device is closed when the water quantity in the regulation and storage facility reaches the maximum water storage quantity, the mixed sewage flows into an online treatment device through the second water outlet and the second flow control device of the second diversion well, and the mixed sewage treated by the online treatment device is directly discharged into the rainwater trunk pipe;
and during rainfall, when the water quantity exceeds the maximum treatment capacity of the online treatment device, closing the second flow control device, and enabling the cut-off device arranged at the first water outlet of the first diversion well to be in an open state, or when the first diversion well is of a groove type, and when the liquid level height of the mixed sewage in the groove type diversion well is greater than the height of the groove, directly discharging the mixed sewage into a natural water body.
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| CN108842909A (en) * | 2018-09-10 | 2018-11-20 | 北京北排水务设计研究院有限公司 | The rainwater or wastewater disposition precise control device and its control method of a kind of pipeline performance |
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| JP2015108219A (en) * | 2013-12-03 | 2015-06-11 | 株式会社イトーヨーギョー | Rainwater treatment system |
| KR20170010040A (en) * | 2015-06-23 | 2017-01-25 | 지성산업개발(주) | Eco-friendly Filtration Grit Chamber AND Rain Water Recirculation System Using Thereof |
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| CN105888030A (en) * | 2016-04-13 | 2016-08-24 | 武汉美华禹水环境有限公司 | Low-influence treatment method of poor-quality rainwater |
| CN106988401A (en) * | 2017-05-10 | 2017-07-28 | 武汉圣禹排水***有限公司 | A kind of face groundwater pollution control for combined flow system pipe network system |
| CN107190842B (en) * | 2017-05-27 | 2019-07-16 | 武汉圣禹排水***有限公司 | A kind of control method for shunting of accurately removing contamination for rainwater |
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| JP2015108219A (en) * | 2013-12-03 | 2015-06-11 | 株式会社イトーヨーギョー | Rainwater treatment system |
| KR20170010040A (en) * | 2015-06-23 | 2017-01-25 | 지성산업개발(주) | Eco-friendly Filtration Grit Chamber AND Rain Water Recirculation System Using Thereof |
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Address after: No. 509 Weihu Road, Shamao Street, Hannan District, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Shengyu Smart Ecological Environmental Protection Co.,Ltd. Address before: 430000, No. 189, Minli North Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: WUHAN SHENGYU DRAINAGE SYSTEM Co.,Ltd. |
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Denomination of invention: A Road Rainwater Treatment System and Control Method Effective date of registration: 20230922 Granted publication date: 20200821 Pledgee: Hubei Science and Technology Financing Guarantee Co.,Ltd. Pledgor: Wuhan Shengyu Smart Ecological Environmental Protection Co.,Ltd. Registration number: Y2023980058076 |