CN111549881A - Initial rainwater flow dividing method - Google Patents
Initial rainwater flow dividing method Download PDFInfo
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- CN111549881A CN111549881A CN202010474788.5A CN202010474788A CN111549881A CN 111549881 A CN111549881 A CN 111549881A CN 202010474788 A CN202010474788 A CN 202010474788A CN 111549881 A CN111549881 A CN 111549881A
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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
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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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
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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
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
- E03B2001/047—Greywater supply systems using rainwater
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses an initial rainwater flow dividing method, wherein rainwater in a catchment area flows into an initial rainwater flow dividing device through a plant rainwater ditch, rainwater in the first 15 minutes flows into an initial rainwater collecting pool through the initial rainwater ditch, the highest water level of the initial rainwater collecting pool is flush with the top of the initial rainwater ditch, the effective volume below the highest water level in the pool is the rainwater amount in the first 15 minutes in the catchment area, and after the water level is higher than the highest water level, because the top of the initial rainwater ditch is flush with the bottom of the later rainwater ditch, the later rainwater can flow away from the later rainwater ditch through the initial rainwater flow dividing device and enter a plant pond after larger impurities are filtered through a grid, so that flow division is realized. The zero emission of rainwater is realized, the pollution to the environment caused by directly discharging initial rainwater without treatment is avoided, and the initial rainwater is treated by fully utilizing a leachate treatment station matched with a garbage power generation project or a wastewater treatment station arranged in other projects and is recycled after reaching the standard; the later stage rainwater with lower pollutant concentration is fully recovered, and the water resource is effectively saved.
Description
Technical Field
The invention relates to the technical field of rainwater treatment in factories, in particular to an initial rainwater flow dividing method.
Background
The initial rainwater is rainwater at the early stage of rainfall, a large amount of pollution gases such as acid gases, automobile exhaust, factory waste gas and the like in the air are dissolved by the rainwater, and after the rainwater falls to the ground, a roof, an asphalt concrete road and the like are washed, so that the initial rainwater contains a large amount of pollutants, exceeds the comprehensive sewage discharge standard, and can pollute the surrounding water environment to a certain extent if the rainwater is directly discharged into a water body through a rainwater ditch or a rainwater pipe.
Taking a garbage power generation project as an example, various pollutants leaked or discharged outside in the operation processes of garbage transportation, waste gas discharge, various production devices, environmental protection facilities and the like enter a rainwater system at the early stage of rainfall, if the pollutants are directly discharged outside through the rainwater system, the pollutants can have adverse effects on the water quality of nearby water bodies, and if the pollutants are completely collected and enter a leachate treatment station, the treatment capacity of the pollutants can be improved, and the cost is increased.
On one hand, after domestic garbage of a garbage power generation project is poured into a garbage bin, the external moisture and intermolecular moisture of the garbage are subjected to stacking and fermentation, and leachate gradually reaches the bottom of a garbage storage pit, the leachate is high-concentration organic sewage, the COD, BOD, NH3-N and SS index concentrations of the organic sewage are high, so the project is provided with a leachate treatment station, and adopts a treatment process of 'pretreatment + UASB anaerobic reactor + MBR biochemical treatment system + NF nanofiltration membrane system + RO reverse osmosis system'. The main pollution sources in the rainwater at the initial stage of the project are COD, SS, NH3-N and the like, the concentration of pollutants is not large, the pollutants are shunted and then pumped into a percolate treatment station for treatment, the quality of the treated outlet water can be ensured to reach the relevant water quality standards of urban sewage recycling-industrial water quality (GB19923-2005) and urban sewage recycling-urban miscellaneous water quality (GB/T18920-2002), and the treated outlet water can be reused for production, fire-fighting water or road cleaning, greening and the like.
On the other hand, due to the fact that water resource shortage is increasingly serious, water resource saving is urgent, rainwater resource utilization becomes an important way for saving water resources, and according to production characteristics of projects, the rainwater at the later stage contains fewer pollutants and has larger water quantity, and the rainwater after being shunted can directly flow into a plant pond after being intercepted by a grid to be used as project water source water replenishing.
The garbage power generation project has huge quantity in China, and in addition, the similar disposal problem of the factory rainwater in other industries exists, if a proper mode can be adopted, the initial rainwater and the later stage rainwater are shunted, the initial rainwater is shunted and collected and then pumped into a percolate treatment station or a wastewater treatment station, the rainwater is recycled for production, fire-fighting water or road cleaning, greening and the like after reaching the standard after treatment, and the later stage rainwater is shunted and then discharged into a factory pond as project water source water replenishing water through a rainwater system, so that the environment is greatly improved, the consumption and waste of water resources are reduced, and the social and economic benefits are better.
Disclosure of Invention
The invention aims to provide an initial rainwater flow distribution method, which realizes zero emission of rainwater, avoids pollution to the environment caused by direct discharge of initial rainwater without treatment and has better environmental protection benefit; meanwhile, the initial rainwater can be treated by fully utilizing a percolate treatment station matched with a garbage power generation project or a wastewater treatment station set by other projects, and the rainwater can be recycled after reaching the standard, so that the economic benefit is better; can also fully recover later stage rainwater with lower pollutant concentration, effectively saves water resources and has better social benefit.
In order to achieve the above object, the present invention provides an initial rainwater diversion method, comprising communicating a plant rainwater ditch, an initial rainwater ditch, and a later rainwater ditch with an initial rainwater diversion device, respectively, the initial rainwater ditch being communicated with an initial rainwater collection tank, the later rainwater ditch being communicated with a plant pond, and arranging a grid in the later rainwater ditch so that rainwater in a catchment area flows into the initial rainwater diversion device through the plant rainwater ditch, rainwater for the first 15 minutes flows into the initial rainwater collection tank through the initial rainwater ditch, the highest water level of the initial rainwater collection tank is flush with the top of the initial rainwater ditch, the effective volume below the highest water level in the tank is the rainwater amount for the first 15 minutes in the catchment area, and after the water level is higher than the highest water level, since the top of the initial rainwater ditch is flush with the bottom of the later rainwater ditch, the later rainwater flows away from the later rainwater ditch through the initial rainwater diversion device, and the large impurities are filtered by the grating and then enter a pond of the plant area, so that the diversion of initial rainwater and later rainwater is realized.
Preferably, two rainwater lifting pumps are arranged in the initial rainwater collecting pool, wherein one rainwater lifting pump is a working pump, and the other rainwater lifting pump is a standby pump; after the rainfall is finished, the water pump is manually started, the initial rainwater in the pool is lifted to the treatment station, and the rainwater returns to the water utilization facility after the treatment reaches the standard.
Preferably, the treatment station is a percolate treatment station or a wastewater treatment station.
Preferably, the water facilities are production, fire pool or road sweeping, greening facilities.
Preferably, the plant pond is used for water source supplement, and two water source water taking pumps are arranged in the plant pond, wherein one water source water taking pump is a working pump, the other water source water taking pump is a standby pump, so that the raw water is lifted to an existing water supply treatment device in a plant, and the raw water is conveyed to production water equipment in the plant after reaching the standard after treatment.
According to the technical scheme, the factory rainwater ditch, the initial rainwater diversion device, the initial rainwater ditch, the initial rainwater collecting pool, the rainwater lifting pump, the percolate treatment station or the wastewater treatment station, the production and fire-fighting water pool or road sweeping and greening facility are adopted to realize initial rainwater diversion, collection, treatment and recycling, and the factory rainwater ditch, the initial rainwater diversion device, the later rainwater ditch, the grating, the factory pond, the water source water taking pump, the existing factory water supply treatment device and the factory production water equipment are adopted to realize later rainwater diversion, treatment and recycling. The initial rainwater is shunted, collected and treated by the initial rainwater shunting device and then is reused for production and fire-fighting water, and can also be used for road cleaning, greening and the like; after intercepting large impurities by the grid, the later stage rainwater after being shunted flows into the pond to be used as water source supplementing water. Not only can avoid the water environment pollution caused by directly discharging initial rainwater into natural water, but also saves water resources.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a process for treating rainwater in a plant area according to the present invention;
FIG. 2 is a schematic diagram of rainwater disposal in a plant area according to the present invention;
FIG. 3 is a schematic diagram of the operation of the initial rainwater diversion apparatus according to the present invention;
FIG. 4 is a schematic view of the late stage rain outlet of the present invention;
fig. 5 is a schematic view of the initial rainwater outlet in the present invention.
Description of the reference numerals
1-factory rainwater ditch 2-initial rainwater ditch
3-late stage rain ditch 4-initial stage rain water shunting device
5-initial rainwater collecting tank 6-rainwater lift pump
7-treatment station 8-Water facilities
9-grid 10-plant pond
11-water source water taking pump 12-water supply treatment device
13-factory area water production equipment
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "front, rear, inner, outer" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as a limitation of the term.
Referring to fig. 1 to 5, the present invention provides an initial rainwater flow distribution method, comprising communicating a plant rainwater ditch 1, an initial rainwater ditch 2, and a later rainwater ditch 3 with an initial rainwater flow distribution device 4, respectively, the initial rainwater ditch 2 communicating with an initial rainwater collection pool 5, the later rainwater ditch 3 communicating with a plant pond 10, and setting a grid 9 in the later rainwater ditch 3, so that rainwater in a catchment area flows into the initial rainwater flow distribution device 4 through the plant rainwater ditch 1, rainwater in the first 15 minutes flows into the initial rainwater collection pool 5 through the initial rainwater ditch 2, the highest water level of the initial rainwater collection pool 5 is the top of the initial rainwater ditch 2, the effective volume below the highest water level in the pool is the rainwater amount in the first 15 minutes in the catchment area, and after the water level is higher than the highest water level, since the top of the initial rainwater ditch 2 is flush with the bottom of the later rainwater ditch 3, the later rainwater flows away from the later rainwater flow distribution device 4, and the larger impurities are filtered by the grating 9 and then enter a plant pond 10, so that the initial rainwater and the later rainwater are shunted.
In this embodiment, it is preferable that two rainwater lift pumps 6 are provided in the initial rainwater collecting tank 5, wherein one rainwater lift pump 6 is a working pump, and the other rainwater lift pump 6 is a standby pump; after the rainfall is finished, the water pump is manually started, the initial rainwater in the pool is lifted to the treatment station 7, and the rainwater returns to the water utilization facility 8 after the treatment reaches the standard.
Further, the treatment station 7 is a percolate treatment station or a waste water treatment station.
Similarly, the water-consuming facility 8 is a production, fire-fighting pool or road cleaning, greening facility.
In addition, in order to facilitate water source supplement, preferably, the plant pond 10 is used for water source supplement, and two water source water taking pumps 11 are arranged inside the plant pond, wherein one water source water taking pump 11 is a working pump, and the other water source water taking pump 11 is a standby pump, so that raw water is lifted to an existing water supply treatment device 12 in the plant, and the raw water is conveyed to a production water device 13 in the plant after reaching the standard after treatment.
Through the technical scheme, rainwater in the catchment area flows into the initial rainwater shunting device 4 through the plant area rainwater ditch 1, rainwater in the previous 15 minutes can flow into the initial rainwater collecting tank 5 through the initial rainwater ditch 2, the highest water level of the initial rainwater collecting tank 5 flushes with the 2 tops of the initial rainwater ditch, the effective volume below the highest water level in the tank is the rainwater amount in the previous 15 minutes in the catchment area, after the water level is higher than the highest water level, because the 2 tops of the initial rainwater ditch and the 3 bottoms of the later stage rainwater ditches flush, the later stage rainwater can flow away from the 3 later stage rainwater ditches through the initial rainwater shunting device 4, and enter the plant area pond 10 after filtering larger impurities through the grating 9, thereby realizing the shunting of the initial rainwater and the later stage rainwater.
Two rainwater lifting pumps 6 (one for one and one spare) are arranged in the initial rainwater collecting pool 5, the water pumps are manually started after rainfall is finished, initial rainwater in the pool is lifted to a percolate treatment station or a wastewater treatment station 7, and the rainwater is treated to reach the standard and then returns to a production, fire-fighting water pool or road sweeping and greening facility 8.
The plant pond 10 is used as water source supplementing water of a project, is provided with two water source water taking pumps 11 (one is used and the other is standby), lifts raw water to an existing water supply treatment device 12 in a plant, and sends the raw water to a plant production water device 13 after the raw water reaches the standard after treatment.
Therefore, the method realizes zero emission of the rainwater, avoids pollution to the environment caused by directly discharging the initial rainwater without treatment, and has better environmental protection benefit.
Meanwhile, the initial rainwater can be treated by fully utilizing a percolate treatment station matched with a garbage power generation project or a wastewater treatment station set by other projects, and the rainwater can be recycled after reaching the standard, so that the method has better economic benefit.
Can also fully recover later stage rainwater with lower pollutant concentration, effectively saves water resources and has better social benefit.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (5)
1. The initial rainwater flow distribution method is characterized by comprising the steps of respectively communicating a plant area rainwater ditch (1), an initial rainwater ditch (2) and a later stage rainwater ditch (3) with an initial rainwater flow distribution device (4), communicating the initial rainwater ditch (2) with an initial rainwater collecting pool (5), communicating the later stage rainwater ditch (3) with a plant area pond (10), arranging a grid (9) in the later stage rainwater ditch (3) so that rainwater in a catchment area flows into the initial rainwater flow distribution device (4) through the plant area rainwater ditch (1), enabling rainwater in the first 15 minutes to flow into the initial rainwater collecting pool (5) through the initial rainwater ditch (2), enabling the highest water level of the initial rainwater collecting pool (5) to be flush with the top of the initial rainwater ditch (2), and enabling the effective volume below the highest water level in the pool to be the rainwater amount in the catchment area in the first 15 minutes, after the water level is higher than the highest water level, because the top of the initial rainwater ditch (2) and the bottom of the later rainwater ditch (3) are flushed, the later rainwater can flow away from the later rainwater ditch (3) through the initial rainwater flow dividing device (4) and enters the plant pond (10) after the grating (9) filters larger impurities, so that the flow division of the initial rainwater and the later rainwater is realized.
2. The initial rainwater flow distribution method according to claim 1, wherein two rainwater lift pumps (6) are arranged in the initial rainwater collection pool (5), wherein one rainwater lift pump (6) is a working pump, and the other rainwater lift pump (6) is a standby pump; after rainfall, the water pump is manually started, initial rainwater in the pool is lifted to a treatment station (7), and the rainwater returns to a water utilization facility (8) after the treatment reaches the standard.
3. A method for initial rainwater diversion according to claim 2 wherein said treatment station (7) is a percolate treatment station or a wastewater treatment station.
4. A method according to claim 2, wherein said water utilities (8) are production, fire pool or road sweeping, greening utilities.
5. The initial rainwater flow dividing method according to claim 1, wherein the plant pond (10) is used for water source supplement, and two water source water taking pumps (11) are arranged inside the plant pond, wherein one water source water taking pump (11) is a working pump, and the other water source water taking pump (11) is a standby pump, so as to lift raw water to an existing water supply treatment device (12) in the plant area, and send the raw water to a plant production water facility (13) after the raw water reaches the standard after treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010474788.5A CN111549881A (en) | 2020-05-29 | 2020-05-29 | Initial rainwater flow dividing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010474788.5A CN111549881A (en) | 2020-05-29 | 2020-05-29 | Initial rainwater flow dividing method |
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| CN111549881A true CN111549881A (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010474788.5A Pending CN111549881A (en) | 2020-05-29 | 2020-05-29 | Initial rainwater flow dividing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979024A (en) * | 2021-04-26 | 2021-06-18 | 常州大学 | Building district rainwater recycling system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207091168U (en) * | 2017-06-23 | 2018-03-13 | 广州永兴环保能源有限公司 | Integral rain sewage disposal system |
| CN207436176U (en) * | 2017-09-30 | 2018-06-01 | 武汉圣禹排水系统有限公司 | A kind of drainage system with online treatment facility |
| CN207959445U (en) * | 2017-09-30 | 2018-10-12 | 武汉圣禹排水系统有限公司 | A kind of drainage system with regulate and store facility and online processing facility |
| CN209958472U (en) * | 2019-04-09 | 2020-01-17 | 中国成达工程有限公司 | Automatic collection and switching system for initial rainwater in pollution area of chemical plant |
| CN110984351A (en) * | 2019-12-20 | 2020-04-10 | 中煤西安设计工程有限责任公司 | Automatic diverging device of initial stage rainwater |
-
2020
- 2020-05-29 CN CN202010474788.5A patent/CN111549881A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207091168U (en) * | 2017-06-23 | 2018-03-13 | 广州永兴环保能源有限公司 | Integral rain sewage disposal system |
| CN207436176U (en) * | 2017-09-30 | 2018-06-01 | 武汉圣禹排水系统有限公司 | A kind of drainage system with online treatment facility |
| CN207959445U (en) * | 2017-09-30 | 2018-10-12 | 武汉圣禹排水系统有限公司 | A kind of drainage system with regulate and store facility and online processing facility |
| CN209958472U (en) * | 2019-04-09 | 2020-01-17 | 中国成达工程有限公司 | Automatic collection and switching system for initial rainwater in pollution area of chemical plant |
| CN110984351A (en) * | 2019-12-20 | 2020-04-10 | 中煤西安设计工程有限责任公司 | Automatic diverging device of initial stage rainwater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979024A (en) * | 2021-04-26 | 2021-06-18 | 常州大学 | Building district rainwater recycling system |
| CN112979024B (en) * | 2021-04-26 | 2022-04-08 | 常州大学 | Building district rainwater recycling system |
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Application publication date: 20200818 |