CN115571932A - Water flowing method for realizing connectivity of river and lake water systems - Google Patents
Water flowing method for realizing connectivity of river and lake water systems Download PDFInfo
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- CN115571932A CN115571932A CN202211113375.XA CN202211113375A CN115571932A CN 115571932 A CN115571932 A CN 115571932A CN 202211113375 A CN202211113375 A CN 202211113375A CN 115571932 A CN115571932 A CN 115571932A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 212
- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000003213 activating effect Effects 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 9
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- 230000008901 benefit Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to the field of water body environmental engineering, in particular to a water flowing method for realizing connectivity of river and lake water systems, which comprises the following steps: dividing river water system circulation into large circulation and/or local circulation, wherein the large circulation is provided with a water pump of a deep purification device to provide running water power, and the large circulation can also be realized by combining the deep purification device water pump with a local circulation running water method; the local circulation can be realized by a running water method corresponding to a specific area (great lake, ditch tip, river ring and landscape pool) of a river and lake water area to be treated. The invention provides a flexibly adaptable water activating method for developing water activating engineering in areas such as big lakes, ditch tips, circular rivers, landscape pools and the like in rivers and lakes, has strong applicability, can realize the connectivity of river and lake water systems, dredge water activating corridors, realize project water activating circulation, unblock each blockage link of a river course water network and finally form a water activating free flow overall environment.
Description
Technical Field
The invention relates to the field of water body ecological engineering, in particular to a water flowing method for realizing connectivity of river and lake water systems.
Background
As surface runoff, rainwater sedimentation, drainage pollution, bottom mud pollution, drainage pollution and other pollution sources flow into rivers and lakes, the contents of total nitrogen, total phosphorus and COD in the rivers and lakes are increasing, and particularly, the risk of eutrophication of surface III and IV water bodies is increasing. Meanwhile, when the river and lake water system is in a relatively closed area, the river has poor fluidity and is even basically static, and the growth and propagation of aerobic microorganisms lead to the anoxic water body to form an anaerobic environment, the anaerobic microorganisms propagate in large quantity, and various gases such as poisonous and odorous hydrogen sulfide, unpleasant ammonia gas and methane can be released in the metabolic process, so that the black and odorous phenomenon occurs in the water body, and the self-purification capacity of the river is poor, the water quality is seriously deteriorated, and the black and odorous water body is very easy to develop. Therefore, efficient water activating engineering is developed for III and IV water bodies of surface rivers and lakes and relatively closed areas of water systems, the circulation of the activated water in the water bodies is realized, and the water quality is improved and maintained.
The running water technology is used as a substantial project for improving water quality, can realize running water circulation and strengthen water body flow on the premise of controlling sources and intercepting sewage, lays a project foundation for river and lake water quality purification and ecological environment restoration, improves water environment quality and enhances human-water harmony. When equipment such as wave making machines, submersible pumps, blowers, propeller pumps, fountains and the like related to the running water engineering are selected, factors such as applicability, combined application configuration, long-term stability of effect, noise influence safety and the like of engineering areas of different projects are fully considered according to local conditions. However, in the existing running water technology, because of the difference of regional characteristics of rivers and lakes and the lack of combination degree with terrain, the unreasonable selection of devices in regions and the water circulation effect are limited, the existing running water technology for realizing the connectivity of river and lake water systems is difficult to realize the comprehensive and effective flow of water in the river and lake regions, and cannot meet the requirements of the existing running water engineering.
Disclosure of Invention
The application aims to provide a running water method for realizing connectivity of river and lake water systems, and aims to realize running water engineering for a river area to be treated, realize running water circulation and efficient communication treatment in a water body, restore ecological environments of water areas of shallow lakes, construct a steady-state water area ecological system and build beautiful urban water area landscapes.
In order to realize the purpose, the invention adopts the following technical scheme:
a running water method for realizing connectivity of river and lake water systems comprises the following steps: dividing river water system circulation into a major circulation and/or a partial circulation, wherein the major circulation is provided with a water pump of a deep purification device to provide running water power, and the major circulation can also be realized by combining the water pump of the deep purification device with a partial circulation running water method; the local circulation comprises a method for water flowing in concrete areas of great lakes, ditch tips, rivers and landscape pools, and a submersible propeller pump, a wave making machine and a submerged aeration device are selected and combined for use.
Preferably, the large circulation is communicated through a deep purification device and a culvert pipe, and water is pumped by a water pump to form the water plug flow and running water large circulation.
Preferably, the water system to be treated is relatively dispersed, local circulation and water flowing are carried out in a great lake, and a submersible push-flow pump and a wave making machine are arranged to form transverse and longitudinal push-flow to play a role in aeration reoxygenation; the local circulating water circulation is arranged in the serious shady area of the water area of the river and lake region, the submerged aeration is arranged, no noise is generated basically, and the normal growth of submerged plants is ensured.
Preferably, local circulation running water is carried out in the landscape pool and places with high landscape requirements, the submersible push-flow pump is arranged and installed at the hidden position underwater, the submersible pump pumps water into the air to form water flowers which naturally fall down, so that the exchange between the bottom layer low-dissolved oxygen water and the surface rich-dissolved oxygen water can be accelerated, the temperature difference between the surface layer water and the bottom layer water is reduced, and the bottom mud skin is prevented from rising to pollute the water surface.
Preferably, the wave making machine selected in the method has a large radiation range, a transverse thrust surface is increased, the exchange of low-dissolved-oxygen water at the bottom layer and rich-dissolved-oxygen water on the surface is accelerated, and the method is suitable for wide water surfaces; the submersible plug flow pump pushes flow longitudinally and pumps water into the air, and has a fountain type landscape effect, so that the lake water forms micro-flow circulation, and the local circulation of the water is promoted.
Preferably, a specific type of water circulation equipment is selected and installed according to the existing hydrodynamic conditions and dissolved oxygen indexes of the river channel.
Preferably, when the detection data of the river show that the dissolved oxygen index in the water quality of the river is in the IV class, local water circulation equipment needs to be arranged to enhance the content of the dissolved oxygen in the water body.
Preferably, the local water circulation equipment is configured by one or a combination of a submersible propeller pump, a wave making machine and a submerged aerator.
Preferably, the method selects the specific power model of the submersible propeller pump and calculates and selects according to 5% of the total daily circulating water quantity.
Compared with the prior art, the invention has the following advantages:
(1) The river water system circulation is divided into a large circulation and/or a local circulation, the large circulation comprises all water areas, and the local circulation comprises a large lake, a ditch tip, a circular river and a specific area of a landscape pool. The water pump of the deep purification device is arranged in the large circulation to provide running water power, and the large circulation can also be realized by combining the deep purification device water pump with a local circulation running water method.
(2) The method has the advantages of low cost and energy consumption, simplicity and easiness in operation and good stability, fully considers local conditions, reduces the unreasonable equipment, provides technical selection and support for river and lake treatment of similar region types, and is worthy of popularization.
(3) As a basic technical route of water body remediation, namely 'source control, sewage interception and endogenous treatment'; circulating running water and supplying clean water; the running water technology has stronger applicability, low-energy consumption manual aeration reoxygenation equipment is screened according to the current situation of water areas and water flow characteristics of common areas in river and lake areas, an adaptable and adjustable running water technical scheme is provided for running water circulation regulation, project running water circulation is realized, a water system running water gallery is opened, each blockage link of a river course water network is cleared in an effort, and a running water open-flow overall environment is formed.
(4) The invention realizes the ecological and economic benefits of the connectivity management of the river and lake water system, can maintain the smoothness of the river, is beneficial to restoring the ecology and has more obvious ecological benefits; and the surrounding environment of the project can be optimized according to the economic radiation effect of the project, the surrounding plots are driven to rise, and the development of the regional economy and society is guaranteed.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
FIG. 1 (a) is a diagram of the river water system range to be treated (including great lakes, ditch tips, rivers and landscape pools)
FIG. 1 (b) is a schematic diagram of a large circulation formed by a river water body water-flowing method;
FIG. 2 is a schematic view of an alternative method of activating water for a great lake (large water surface area) and a ditch tip area;
FIG. 3 is a schematic diagram of an alternative method of water-activating for the river-surrounding area;
FIG. 4 (a) a current view of a landscape pool area;
FIG. 4 (b) is a schematic diagram of an alternative method of water-moving for a landscape pond area;
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Embodiments according to the invention are first described in detail below with reference to the accompanying drawings:
example 1
As shown in fig. 1 (a) and fig. 1 (b), the method for realizing the running water of the river and lake water system connectivity is provided, which is mainly suitable for slow riverways with class iii and class iv water bodies flowing and relatively closed water systems, the water bodies are relatively closed and have poor fluidity, potential eutrophication risk exists, the water bodies are turbid, and the water environment quality is not high, according to the water area to be treated, a water pump of a deep purification device is arranged, the running water power is provided to realize large circulation, the method can also be realized by combining the water pump of the deep purification device and a local circulating running water method, and reasonable selection and arrangement are performed by combining the characteristics of local areas to be treated (such as large lakes, ditch tips, rivers, landscape pools and the like) through a plurality of aeration devices; provides the scheme selection and technical support of the water flowing method for the river and lake water flowing engineering of similar region types.
Using the great lake as an example, the equipment selection can be referred to the analysis, and the area of the great lake is 39020m 2 Average water depth 2m, i.e. total water quantity Q1=39020 × 2=78040m 3 . 5% of the total water amount is Q2= Q1 × 0.05=3902m3. Three submersible pumps are selected, and the submersible pumps are operated for 14 hours (8 earlier than the pump speed: 00: 22 later than the pump speed: 00) every day, so that the flow Q0= Q2/3/14=92.9m of each pump 3 The flow rate of the submersible pump is selected to be 100m 3 H, corresponding to a power of 1.5kw. The invention is illustrated in relation to the great lake area according to this case; if other composition areas (such as ditch tips, rivers, landscape pools and the like) exist in the water area, the equipment model can be selected by the same method.
The following embodiments are detailed below in the actual water-flowing project for selecting the water-flowing device and the water-flowing method related to the realization of the local circulation of a specific water area part.
Example 2
When the actual engineering relates to a water activating engineering in a great lake (a large water surface area) and a ditch tip area, the water activating method comprises the following steps:
according to the example of the great lake, 1 wave making machine (1.5 kw) and 3 medium-sized submersible thrust pumps (1.5 kw) are preferably arranged in the great lake region to form clockwise circulation; if the large lake area or the large water surface area is connected with the structure tip, a large submersible propeller pump (the model and the number of the pumps are calculated according to specific engineering) can be arranged at the ditch tip to form anticlockwise local circulation and prevent dead angles from being formed in a water area. As shown in fig. 2: the method for selecting running water for the great lake (large water surface area) and the ditch tip area is shown.
Example 3
When the water activating engineering is carried out in the river-surrounding area in the actual engineering, the water activating method comprises the following scheme:
as shown in FIG. 3: as shown in a method for selecting running water in a river-surrounding area, N submerged fans (the type and the number of the submerged fans are calculated according to specific engineering) are selected and arranged in the river-surrounding area, the length of a microporous aeration pipeline is determined according to the area of an actual area, and N submerged nano-aerators (the type and the number of the submerged nano-aerators are calculated according to the specific engineering) form anticlockwise local circulation to prevent dead corners in a water area.
Example 4
When the water activating engineering is carried out in the landscape pool area in the actual engineering, the water activating method comprises the following scheme:
as shown in fig. 4 (a) and 4 (b): as shown in the alternative water flowing method for the landscape pool area, the landscape pool method provided by the embodiment is mainly used for landscape pools with dispersed water areas, submersible propeller pumps (models and numbers are calculated according to specific engineering) are arranged in the landscape pools to form local circulation among the pools, and return pipes are designed to form the local circulation. If the landscape pool relates to a wider area or a ditch tip circular river condition, the running water technology can also be combined with the method provided above.
The running water method for realizing the connectivity of the river and lake water system has strong applicability to running water engineering for areas such as great lakes, ditch tips, landscape pools and the like in the rivers and lakes, can realize the connectivity of the river and lake water system, dredge running water galleries of the water system, realize running water circulation of projects, dredge all blockage links of a river course water network, and finally form a running water smooth flow overall environment. The water flowing method can not only maintain the smoothness of rivers, help to restore the ecology and explore natural ecological resources, but also has more remarkable ecological benefit; and the surrounding environment of the project can be optimized according to the economic radiation effect of the project, the surrounding land parcel is driven to rise, and the development of the regional economic society is guaranteed.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (9)
1. A running water method for realizing connectivity of river and lake water systems is characterized by comprising the following steps: dividing river water system circulation into a major circulation and/or a partial circulation, wherein the major circulation is provided with a water pump of a deep purification device to provide running water power, or is realized by combining the water pump of the deep purification device with a partial circulation running water method; the local circulation comprises a method for water flowing in concrete areas of great lakes, ditch tips, rivers and landscape pools, and a submersible propeller pump, a wave making machine and a submerged aeration device are selected and combined for use.
2. The running water method for realizing connectivity of river and lake water systems according to claim 1, wherein the large circulation is formed by arranging a deep purification device, arranging a culvert pipe for communication and pumping water by a water pump.
3. The water activating method for realizing the connectivity of river and lake water systems as claimed in claim 1, wherein the water systems to be treated are relatively dispersed, the water activating is performed in a local circulation manner in great lakes, and submersible push-flow pumps and wave making machines are arranged to form transverse and longitudinal push-flow to play the roles of aeration and reoxygenation; the local circulating water circulation is arranged in the serious shady area of the water area of the river and lake region, the submerged aeration is arranged, no noise is generated basically, and the normal growth of submerged plants is ensured.
4. The water activating method for realizing the connectivity of the river, lake and water system according to claim 3, characterized in that local circulation water activating is carried out in the landscape pool and places with high landscape requirements, a submersible push flow pump is arranged, the submersible push flow pump is installed at an underwater hidden place, and the submersible pump drives water into the air to form water flowers to naturally fall down, so that the exchange between the low-dissolved-oxygen water at the bottom layer and the surface oxygen-enriched water can be accelerated, the temperature difference between the surface water and the bottom water is reduced, and the rising of bottom mud skin is prevented from polluting the water surface.
5. The running water method for realizing connectivity of a river, lake and water system according to claim 1, wherein a wave making machine is selected to have a large radiation range, a transverse thrust surface is increased, the exchange of bottom low-dissolved oxygen water and surface rich-dissolved oxygen water is accelerated, and the method is suitable for wide water surfaces; the submersible plug flow pump pushes flow longitudinally, pumps water into the air, and has a fountain type landscape effect, so that the lake water forms micro-flow circulation, and the local circulation of the water is promoted.
6. The running water method for realizing connectivity of a river/lake water system according to claim 1, wherein a specific type of water circulation equipment is selected and installed according to the existing hydrodynamic conditions and dissolved oxygen index of a river channel.
7. The running water method for realizing connectivity of a river, a lake and a water system according to claim 1, wherein when the detection data of the river show that the dissolved oxygen index in the water quality of the river is in the IV class, a local water circulation device is required to be arranged so as to enhance the content of the dissolved oxygen in the water body.
8. The running water method for realizing connectivity of a river, lake water system as claimed in claim 8, wherein the local water circulation equipment is configured by one or a combination of a submersible pump, a wave making machine and a submerged aerator.
9. The running water method for realizing connectivity of a river, lake and water system as claimed in claim 1, wherein the method is characterized in that a specific power model of a submersible pump is selected according to calculation of 5% of total water quantity circulating every day.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116623595A (en) * | 2023-07-17 | 2023-08-22 | 成都市市政工程设计研究院有限公司 | Physical method for constructing urban internal lake background based on hydrodynamic system |
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