CN113356325A - Comprehensive treatment method for ecological environment of landscape water area water - Google Patents
Comprehensive treatment method for ecological environment of landscape water area water Download PDFInfo
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- CN113356325A CN113356325A CN202110704625.6A CN202110704625A CN113356325A CN 113356325 A CN113356325 A CN 113356325A CN 202110704625 A CN202110704625 A CN 202110704625A CN 113356325 A CN113356325 A CN 113356325A
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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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
- C02F7/00—Aeration of stretches of water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/103—Naturals or landscape retention bodies, e.g. ponds
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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
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/20—Total organic carbon [TOC]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
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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
Abstract
The invention relates to the technical field of water ecological environment treatment methods, and particularly discloses a landscape water area water ecological environment comprehensive treatment method which comprises the steps of dredging and sludge disposal, cavernous body restoration, running water purification, water ecological construction and intelligent management, wherein the steps are as follows: dredging and treating sludge: and (3) removing the sludge in the water area to be treated by using an artificial dry sludge flushing method, and constructing a sludge curing field for mechanically curing the sludge. The invention provides a comprehensive treatment method for water ecological environment of landscape water area, wherein the steps of dredging, sludge disposal and cavernous body restoration are to repair and restore the original polluted and damaged water area to be treated, thereby restoring the original ecological environment of the water area to be treated; purifying running water and constructing water ecology, wherein the water area is further improved in water quality and improved in ecological environment; and an intelligent management step, which is used for detecting the coverage of the water area and effectively improving the comprehensive efficiency of water area treatment.
Description
Technical Field
The invention relates to the technical field of water ecological environment treatment methods, in particular to a comprehensive treatment method for water ecological environments in landscape water areas.
Background
With the continuous improvement of the living standard of people's materials and the continuous increase of the demand on urban infrastructure, the public facilities such as parks are often provided with manually excavated landscape waters, compared with lakes communicating with great rivers, rivers and branches thereof, most of the water body incoming water of the landscape waters is mainly gathered by peripheral rainwater runoff, and generally has no other water replenishing incoming water, so that the characteristic of closed water body is presented. The landscape waters in cities often reduce the self-cleaning capacity of the whole water body due to the closed water body property, the regional rainfall non-point source pollution or the influence of a sewage discharge port, and bear heavier load of resident tourists, so that the water ecology in the landscape waters is seriously damaged and polluted along with the passage of time, the water quality is rapidly deteriorated, and the landscape effect is greatly reduced.
Aiming at the problems, the invention provides a comprehensive treatment method for the ecological environment of landscape water area water.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a comprehensive treatment method for the water ecological environment of a landscape water area, which can solve the problems that the water ecological environment of the landscape water area is seriously damaged and polluted, the water quality is rapidly deteriorated and the landscape effect is greatly reduced.
(II) technical scheme
The technical scheme adopted by the invention for solving the technical problems is as follows: a landscape water area water ecological environment comprehensive treatment method comprises the steps of dredging and sludge disposal, cavernous body restoration, running water purification, water ecology construction and intelligent management, and the steps specifically comprise:
dredging and treating sludge: and (3) removing the sludge in the water area to be treated by using an artificial dry sludge flushing method, and constructing a sludge curing field for mechanically curing the sludge.
Repairing the cavernous body: and constructing a rainwater garden, an ecological interception ditch and a rainwater recycling pool at the bank of the water area to be treated, wherein the ecological interception ditch is communicated with the rainwater recycling pool.
Purifying running water: a two-way purification and water-flowing system is established, and a submersible water impeller and a water return pipe are arranged in a water area to be treated to form water circulation of submersible water-flowing and laminar-flow-exchange water-flowing.
Water ecology construction steps: and constructing a stepped underwater forest in a shallow water area near the shore of a water area to be treated, and intercepting and eliminating pollutants.
Intelligent management steps: and establishing a full-water-area monitoring system, arranging a detection unit for detecting the water quality condition in the water area to be treated, and matching the detection unit with the bidirectional purification and running water system.
Preferably, the manual dry-type scouring and silting method needs to arrange a fence along the edge of the water body and at the river collecting port, then uses a water pump to drain accumulated water in the fence range, and then carries out dredging construction.
Preferably, the dredging construction comprises the steps of flushing river bottom sludge by using a high-pressure water gun, pumping the sludge uniformly stirred by the high-pressure water gun to a sedimentation tank by using a slurry pump, and conveying the sludge fully precipitated in the sedimentation tank to a sludge solidification site for mechanical solidification.
Preferably, the sludge fully precipitated in the sedimentation tank is transported to a sludge solidification site through a slurry transport pipeline for mechanical solidification, the slurry transport pipeline adopts a steel pipe slurry transport pipe with the wall thickness of 4mm and the radius of 200mm-300mm, and a single section of 4m long belt is connected with a bolt and matched with a hose for installation of a turning pipeline.
Preferably, if the water area to be treated has massive sediments, the sediments are intensively loaded and transported to the sludge solidification site for mechanical solidification in the modes of digging by an excavator and shoveling by manpower.
Preferably, the rainwater garden is provided with a 250mm thick gravel cushion layer, a 150mm thick gravel layer, a 100mm thick gravel layer and a pebble layer from bottom to top, and moisture-proof and drought-resistant vegetation is planted on the gravel layer.
Preferably, an overflow well is arranged in the rainwater garden and communicated with a rainwater pipe network, and the rainwater pipe network is communicated with the rainwater recycling pool.
Preferably, the ecological intercepting ditch is sequentially provided with rammed earth, a gravel cushion layer with the thickness of 200mm, C20 concrete with the thickness of 120mm, 1:2 composite grate with the thickness of 20mm, 5 cement mortar with the thickness of 300 mm/450 mm/35 mm, ecological substrate with the thickness of 100mm and 150mm pebbles with the particle size of 30mm-50mm from bottom to top.
Preferably, the bidirectional purification and water flowing system comprises a water intake arranged near the water area to be treated, the water return pipe is erected between the water intake and the water area to be treated, the water return pipe is arranged along the inner side of the water area to be treated, and the submersible water impeller is arranged on the inner side, far away from the water return pipe, of the water area to be treated.
Preferably, evenly be equipped with a plurality of tie point on the wet return, the laminar flow exchange water activating machine is installed to the tie point department, laminar flow exchange water activating machine with dive impeller is located the waters side of treating to administer respectively, and the water that the laminar flow exchange water activating machine was derived with the trend of the water that dive impeller was derived forms hydrologic cycle.
Preferably, the stepped underwater forest comprises an ecological medium box, submerged plants and emergent plants, wherein the ecological medium box is arranged at the bank side of a water area to be treated so that the ecological medium box is close to the water surface; aquatic animals such as fish, shrimp, spiral shell and the like are put in the water area to be treated for ecological regulation and control.
Preferably, the ecological medium box is provided with an ecological substrate with the thickness of 250mm, a dephosphorization substrate with the thickness of 100mm and planting soil with the thickness of 150mm from the inside to the top, and emergent aquatic plants or floating plants are planted on the planting soil with the thickness of 150 mm.
Preferably, the full-water-area monitoring system comprises a plurality of water quality detection points arranged in the water area to be treated, the detection units are arranged at the water quality detection points, and when the water quality is detected to be not in accordance with the requirement, the bidirectional purification and water activating system is started.
Preferably, the detection unit comprises a pollution source online detection instrument, a flow meter, an automatic sampler, an online detection instrument, an environmental water quality automatic detection instrument and a total organic carbon determinator.
(III) advantageous effects
1. The invention provides a comprehensive treatment method for water ecological environment in landscape water area, which comprises a dredging and sludge disposal step, a water purifying and activating step, a water ecological construction step, a cavernous body restoration step and an intelligent management step, wherein the dredging and sludge disposal step and the cavernous body restoration step are used for repairing and restoring the original polluted and damaged water area to be treated so as to restore the original ecological environment of the water area to be treated; purifying the running water and constructing the water ecology, namely, after recovering the original ecological environment of the water area to be treated, further improving the water quality of the water area and improving the ecological environment, so as to promote the water ecological environment to reach a balanced state; and in the intelligent management step, the coverage of the water area is detected, the information is acquired at the first time when the water body is abnormal, the water area is rapidly treated, and the comprehensive efficiency of the water area treatment is effectively improved.
2. According to the comprehensive treatment method for the water ecological environment in the landscape water area, provided by the invention, the sludge is flushed by the high-pressure water gun in the dredging and sludge disposal steps, the operation is simple, the dredging is thorough, the water content of the sludge is favorably reduced by sedimentation in the sedimentation tank, the secondary pollution in the transportation process is effectively avoided by using the pipeline to convey the slurry, the dredging in the whole step process is convenient, and the sludge is solidified for resource utilization, so that the comprehensive treatment method has certain environmental protection significance.
3. The invention provides a comprehensive treatment method for water ecological environment in landscape water area, wherein the rainwater garden, the ecological interception ditch and the rainwater recycling pool built in the sponge body restoration step have the functions of absorbing, storing and slowly releasing rainwater in the water area to be treated and the shore area, are beneficial to collecting surface runoff rainwater, play an important role in keeping water and soil and improving ecology and are beneficial to reducing the pressure of the whole natural water circulation system.
4. According to the landscape water area water ecological environment comprehensive treatment method provided by the invention, in the step of purifying running water, the laminar flow exchange running water machine highly disperses air into the water body, so that dissolved oxygen in water can be effectively increased, and the flow exchange running water machine enables energy exchange between the water body in the return water pipe and the water body outside the return water pipe, so that the working efficiency of the water body is improved; the submersible water impeller effectively stirs and impels at low speed the water led out of the return pipe and the water outside the return pipe, so as to generate strong water flow with low tangential flow, which is beneficial to promoting the formation of water circulation; the step can continuously remove suspended particles, algae and excessive phosphorus in the water, increase the oxygen content of the water body, and simultaneously can ensure long-term excellent and stable water quality by matching with the self-purification function of the water ecological purification system in the water area to be treated.
5. The invention provides a comprehensive treatment method for water ecological environment in landscape water area, wherein ecological plants arranged from bottom to top on water bottom, water surface and water surface in the water ecological construction step form a step type underwater forest, so as to establish a stable small ecological ring.
6. The invention provides a comprehensive treatment method for water ecological environment in landscape water area, which comprises intelligent management steps, wherein the comprehensive stable detection of water quality in the water area to be treated is ensured, the information can be rapidly acquired and treated at the initial end of deterioration of the water quality through comprehensive coverage detection, the treatment efficiency of the water area to be treated is ensured, the treatment is rapidly carried out, the deterioration of the water body is killed at the initial section, and the comprehensive treatment efficiency of the water area to be treated is effective.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of a rain garden of the present invention;
FIG. 3 is a schematic sectional view of an ecological intercepting trench according to the present invention;
FIG. 4 is a schematic structural view of the working principle of the step of purifying running water according to the present invention;
fig. 5 is a schematic view of the sectional structure of the stepped underwater forest of the present invention.
Wherein: 1 is a water area to be treated, 2 is a rainwater garden, 21 is a gravel cushion layer with the thickness of 250mm, 22 is a gravel layer with the thickness of 150mm, 23 is a gravel layer with the thickness of 100mm, 24 is a pebble layer, 25 is moisture-proof drought-resistant vegetation, 26 is an overflow well, 260 is a filter structure, 27 is a rainwater pipe net, 28 is a groove, 29 is original soil, 3 is an ecological interception ditch, 31 is plain soil compaction, 32 is a gravel cushion layer with the thickness of 200mm, 33 is C20 concrete with the thickness of 120mm, 34 is 1:2 is 5 cement mortar with the thickness of 20mm, 35 is a composite grate with the thickness of 300mm 450mm 35mm, 36 is an ecological substrate with the thickness of 100mm, 37 is pebbles with the thickness of 150mm and the particle size of 30mm-50mm, 4 is a submersible water impeller, 5 is a laminar flow exchange running water machine, 51 is a water intake, 6 is water circulation, 7 is a stepped forest, 70 is a submerged plant area, 71 is an ecological medium box, 72 is an emergent aquatic plant, 73 is an emergent water, 73 is an emergent plant, 74 is original revetment foundation, 75 is fender post, 76 is emergent aquatic plant growing area, 77 is earth backfill, 78 is planting soil with thickness of 300mm, and 79 is scenic stone.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 5, the present invention provides the following technical solutions: a landscape water area water ecological environment comprehensive treatment method comprises the steps of dredging and sludge disposal, cavernous body restoration, running water purification, water ecology construction and intelligent management, and the steps specifically comprise:
dredging and treating sludge: and (3) removing the sludge in the water area 1 to be treated by using an artificial dry sludge flushing method, and constructing a sludge curing field for mechanically curing the sludge.
The manual dry-type scouring and silting method needs to arrange a fence along the edge of a water body and at a river collecting port, then uses a water pump to drain accumulated water in the fence range, exposes out of the river bottom, and then carries out dredging construction.
The dredging construction comprises the steps of flushing river bottom sludge by using a high-pressure water gun, pumping the sludge uniformly stirred by the high-pressure water gun to a sedimentation tank by using a slurry pump, reducing the water content of the sludge after the sludge is fully precipitated in the sedimentation tank, and then conveying the sludge to a sludge solidification site for mechanical solidification; wherein, a sludge solidification field is arranged near the water area 1 to be treated, after the sludge is conveyed to the sludge solidification field, the sludge is mechanically solidified into a sludge cake with the solid content of 55-65%, and then the sludge cake is transported to the outside for resource utilization.
In the technical scheme, during the desilting construction, at first utilize the high-pressure squirt to dash the silt of river bottom and turn over for river bottom silt is lax, the high-pressure squirt is scouring away silt, not only play the effect to silt stirring, be favorable to scouring away silt and concentrate to appointed region in addition, then utilize the slush pump to take out silt to the sedimentation tank in, silt deposits in the sedimentation tank after taking out earlier, makes silt and clear water layering, takes out the clear water of upper strata and returns the waters, will deposit the silt of lower floor and transport to the silt solidification place solidifies.
The sludge fully precipitated by the sedimentation tank is transported to a sludge solidification site for mechanical solidification through a slurry transport pipeline, the slurry transport pipeline adopts a steel pipe slurry transport pipe with the wall thickness of 4mm and the radius of 200mm-300mm, and a single section of 4m long belt is connected with a bolt and matched with a hose for installing a pipeline at a corner; one end of the slurry conveying pipeline is inserted into the sedimentation tank and connected with the high-pressure delivery pump for pumping slurry.
If the water area 1 to be treated has massive sediments, the sediments are intensively loaded and transported to the sludge solidification site for mechanical solidification in the modes of digging by an excavator and shoveling by manpower.
In above-mentioned technical scheme, erode silt through high-pressure squirt, easily control the trend of silt, conveniently concentrate silt in the assigned position and carry out operation on next step, and whole process operation is comparatively simple, and the desilting is thorough, is convenient for pass bridge and other river channel barriers, uses the pipeline to carry mud also effectively to avoid the secondary pollution on the way of the transportation, reduces the interference to the resident of river course both sides.
Repairing the cavernous body: a rainwater garden 2, an ecological interception ditch 3 and a rainwater recycling pool are built on the bank of a water area 1 to be treated, and the ecological interception ditch 3 is communicated with the rainwater recycling pool.
Referring to fig. 2, the rainwater garden 2 is provided with a 250mm thick gravel cushion 21, a 150mm thick gravel layer 22, a 100mm thick gravel layer 23 and a pebble layer 24 from bottom to top, moisture-resistant and drought-resistant vegetation 25 is planted on the gravel layer 23, and the moisture-resistant and drought-resistant vegetation 25 grows through the pebble layer; wherein the rainwater garden 2 is arranged in a low-lying place, a low-lying groove 28 can be dug in situ to meet the requirement, and the gravel cushion 21 is laid on the original soil 29 in the groove 28.
An overflow well 26 is arranged in the rainwater garden 2, the overflow well 26 is communicated with a rainwater pipe network 27, and the rainwater pipe network 27 is communicated with the rainwater recycling pool; the middle of the rainwater garden 2 is of a low-lying structure, the overflow well 26 is arranged at the low-lying structure of the rainwater garden 2, the top of the overflow well 26 is lower than the top of the pebble layer 24, a filter structure 260 is arranged on the well mouth of the overflow well 26, and the filter structure 260 is covered by the pebble layer 24.
The filtering structure 260 is a grid net, the mesh diameter of the grid net is smaller than the particle size of the sand stone layer 23, and the structure is favorable for preventing the blockage caused by the accumulated water carrying the sand and the sand flowing into the overflow well 26.
In the above technical solution, the special arrangement of the rainwater garden 2 has an infiltration effect on rainwater and excess water, and when a large amount of water is collected at a low-lying position in the middle of the rainwater garden 2 and is not in time to infiltrate, water flows into the overflow well 26 through the filtering structure 260 and flows into the rainwater recycling pool through the rainwater pipe network 27 for greening irrigation and cleaning road surfaces.
Referring to fig. 3, the ecological intercepting ditch 3 is sequentially provided with a rammed earth 31, a gravel cushion layer 32 with the thickness of 200mm, C20 concrete 33 with the thickness of 120mm, a composite grate 35 with the thickness of 20mm and the thickness of 1:2 being 5 cement mortar 34, 300mm 450mm 35mm, an ecological substrate 36 with the thickness of 100mm and 150mm pebbles 37 with the particle size of 30mm-50mm from bottom to top; wherein, ecological interception ditch 3 can collect surface runoff rainwater and flow to in the rainwater recycle pond for afforestation watering, washing road surface play catchment, retaining, water purification in the view drainage function of an organic whole.
In the technical scheme, the rainwater garden 2, the ecological intercepting ditch 3 and the rainwater recycling pool built in the sponge body repairing step have the functions of absorbing, storing and slowly releasing rainwater in the water area 1 to be treated and the shoreside area, are favorable for collecting surface runoff rainwater, play an important role in keeping water and soil and improving ecology, and are also favorable for reducing the pressure of the whole natural water circulation 6 system.
Referring to fig. 4, the step of purifying the running water: a two-way purification and water-flowing system is established, a submersible water impeller 4 and a water return pipe are arranged in a water area 1 to be treated to form a water circulation 6 of submersible water impeller flowing water and laminar flow exchange flowing water.
The bidirectional purification and water flowing system comprises a water intake 51 arranged near the water area 1 to be treated, a water return pipe is erected between the water intake 51 and the water area 1 to be treated, the water return pipe is arranged along the inner side of the water area 1 to be treated, and the submersible water impeller 4 is arranged on the inner side of the water area 1 to be treated, which is far away from the water return pipe; the water return pipe is arranged at the position close to the water intake 51 on the inner side of the water area 1 to be treated, and the submersible water impeller 4 is arranged at the position opposite to the water return pipe in the water area 1 to be treated.
Evenly be equipped with a plurality of tie point on the wet return, laminar flow exchange water activating machine 5 is installed to the tie point department, laminar flow exchange water activating machine 5 with dive impeller 4 is located 1 both sides in waters of treating administering respectively, and the water that laminar flow exchange water activating machine 5 was derived with the trend of the water that dive impeller 4 was derived forms hydrologic cycle 6.
During specific work, a clean water source at a water source intake 51 is guided to a water area 1 to be treated through a water return pipe, and the laminar flow exchange water activating machine 5 arranged on the water return pipe highly disperses air into a water body, so that dissolved oxygen in water can be effectively increased, and the laminar flow exchange water activating machine 5 enables energy exchange between the water body in the water return pipe and the water body outside the water return pipe, so that the work efficiency of the water body is improved; the submersible water impeller 4 effectively stirs and impels at low speed the water led out of the return pipe and the water outside the return pipe, so as to generate strong water flow with low tangential flow, which is beneficial to promoting the formation of water circulation 6; the laminar flow exchange water activating machine 5 is matched with the submersible water impeller 4 to continuously remove suspended particles, algae and excessive phosphorus in water, increase the oxygen content of the water body, and simultaneously, the self-purification function of the water ecological purification system in the water area 1 to be treated is matched, so that the long-term excellent and stable water quality can be ensured.
Water ecology construction steps: constructing a stepped underwater forest 7 in a shallow water area near the bank of the water area 1 to be treated, and intercepting and eliminating pollutants; the shallow water area refers to a water body area with water depth as small as river bottom landform energy to influence surface waves.
Referring to fig. 5, the stepped underwater forest 7 comprises an ecological medium box 71, submerged plants 72 and emergent plants 73, wherein the ecological medium box 71 is arranged at the bank of the water area 1 to be treated, so that the ecological medium box 71 is close to the water surface; aquatic animals such as fish, shrimp, spiral shell and the like are put in the water area to be treated for ecological regulation and control.
The step type underwater forest 7 is constructed by arranging a surrounding pile 75 at a position close to an original revetment foundation 74 in a shallow water area of a water area 1 to be treated, arranging an emergent aquatic plant planting area 76 between the surrounding pile 75 and the original revetment foundation 74, sequentially arranging 1000mm thick earthwork backfilling 77 and 300mm thick planting soil 78 on the original bottom of the emergent aquatic plant planting area 76, wherein the height of the surrounding pile 75 is higher than the upper surface of the planting soil 78 and is lower than the normal water level, planting the emergent aquatic plants 73 on the planting soil 78, and configuring scenic stones 79 on the original revetment foundation 74, wherein the scenic stones 79 are used for transiting the landscapes and the emergent aquatic plants 73 and are beneficial to preventing water from eroding the original revetment foundation 74; one side of the enclosing pile 75, which is far away from the shallow water area, is a submerged plant planting area 70, an earthwork backfill 77 is arranged at the original bottom of the submerged plant planting area 70, a submerged plant 72 is planted on the earthwork backfill 77, and in addition, aquatic animals are put in, so that the overall aesthetic property of the water area is improved, meanwhile, the ecological environment in the water area is also improved, and the overall ecological environment is more natural.
The ecological medium box 71 is internally provided with an ecological substrate with the thickness of 250mm, a dephosphorization substrate with the thickness of 100mm and planting soil with the thickness of 150mm from top to bottom, and emergent aquatic plants 73 or floating plants are planted on the planting soil with the thickness of 150 mm; the submerged plants 72 are gathered underwater, can absorb nitrogen, phosphorus and other nutrient substances in the water body in the growing process, can effectively transfer excessive nutrient substances in the water body, and has a positive effect on relieving water eutrophication; the emergent aquatic plants 73 comprise reeds, cattail, lotus flowers, cattail and the like, and are beneficial to the transition between the bank of the water area 1 to be treated and the water body; the floating plants 714 comprise red full river, water hyacinth and the like, mostly mainly foliage, provide decoration and shade for the water area 1 to be treated, can absorb mineral substances in water, can shield sunlight injected into the water, can effectively inhibit the growth of algae in the water, and promote the water ecological environment to reach a balanced state; landscape plants are also planted around the water area 1 to be treated, so that the ornamental value of the ornamental lake is greatly improved, and the water ecological treatment of the water area 1 to be treated is promoted.
In the technical scheme, the ecological medium boxes 71 are uniformly arranged on the shore, the interval between every two ecological medium boxes 71 is 10m-18m, the submerged plants 72 are planted at the bottom of the water area 1 to be treated, the emergent plants 73 are planted in a shallow water area near the shore, so that the upper ends of the emergent plants 73 are raised out of the water surface, and the ecological plant groups arranged from bottom to top on the water surface form a stepped underwater forest 7.
Intelligent management steps: and establishing a full water area monitoring system, arranging a detection unit for detecting the water quality condition in the water area 1 to be treated, and matching with the bidirectional purification and running water system.
The full-water-area monitoring system comprises a plurality of water quality detection points arranged in the water area 1 to be treated, the detection units are arranged at the water quality detection points, and when the water quality is detected to be not in accordance with the requirement, the bidirectional purification and water activating system is started.
In the technical scheme, the interval between every two water quality detection points is 15m-25m, each water quality monitoring point is provided with a fixing pile, the detection units are installed on the fixing piles, the coverage detection is carried out on the water area 1 to be treated through the arrangement of the detection units, the water quality in the water area 1 to be treated is guaranteed to be comprehensively and stably detected, through the comprehensive coverage detection, the initial end of deterioration of the water quality can be rapidly obtained and treated, the treatment efficiency of the water area 1 to be treated is guaranteed to be rapidly treated, the water deterioration is killed at the initial section, and the comprehensive efficiency of the treatment of the water area 1 to be treated is effectively improved.
The water quality monitoring system is characterized in that a detection unit is arranged in a water area 1 to be treated, a control end is provided with a corresponding detection data fluctuation range, the detection unit is used for detecting the water quality of a water body in a detection treatment range, the control end checks related detection data in the water body in real time, and when the water quality detection data exceed a set range, the detection end gives an alarm to remind a worker to start a bidirectional purification and water-activating system for treatment.
The detection unit comprises a pollution source online detection instrument, a flowmeter, an automatic sampler, an online detection instrument, an environmental water quality automatic detection instrument and a total organic carbon determinator.
In the technical scheme, the pollution source online detection instrument is used for monitoring the synchronous and continuous monitoring of the concentration and the flow of the total pollutant emission amount; the flow meter is used for continuously monitoring the flow of the sewage discharge port of the open channel on line; the automatic sampler is used for online automatic sampling of a pollution source discharge port in a flow ratio mode and a time ratio mode; the online detection instrument is used for online detection and analysis of a sewage discharge port, and the main detection items comprise: COD (chemical oxygen demand), TOC (total organic carbon), UV (ultraviolet), NH4 (ammonium), NO3-N (nitrate nitrogen), cyanide, volatile phenol, mineral oil, and pH (hydrogen ion concentration index); the environment water quality automatic detection instrument is used for on-line automatic monitoring of surface water environment quality indexes, monitoring items are divided into water quality conventional five parameters and other items, the water quality conventional five parameters comprise temperature, pH (hydrogen ion concentration index), DO (dissolved oxygen), conductivity and turbidity, and the other items comprise permanganate index, TOC (total organic carbon), TN (total nitrogen), TP (total phosphorus) and NH3-N (ammonia nitrogen); the total organic carbon tester is used for monitoring a pollution source or surface water.
The desilting and sludge disposal step and the cavernous body restoration step are carried out on the basis that the water area 1 to be treated is originally polluted and damaged, so as to restore the original ecological environment of the water area 1 to be treated; purifying the running water and constructing the water ecology, namely, after recovering the original ecological environment of the water area 1 to be treated, further improving the water quality of the water area and improving the ecological environment, so as to promote the water ecological environment to reach a balanced state; and in the intelligent management step, the coverage of the water area is detected, the information is acquired at the first time when the water body is abnormal, the water area is rapidly treated, and the comprehensive efficiency of the water area treatment is effectively improved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (8)
1. Is a landscape water area water ecological environment comprehensive treatment method, which is characterized in that: the method comprises the steps of dredging and sludge disposal, cavernous body restoration, running water purification, water ecology construction and intelligent management, and specifically comprises the following steps:
dredging and treating sludge: removing sludge in a water area (1) to be treated by using an artificial dry sludge flushing method, and constructing a sludge curing field for mechanically curing the sludge;
repairing the cavernous body: building a rainwater garden (2), an ecological interception ditch (3) and a rainwater recycling pool at the bank of a water area (1) to be treated, wherein the ecological interception ditch (3) is communicated with the rainwater recycling pool;
purifying running water: establishing a two-way purification and water flowing system, arranging a submersible water impeller (4) and a water return pipe in a water area (1) to be treated to form a water circulation (6) of submersible water impeller flowing water and laminar flow exchange flowing water;
water ecology construction steps: constructing a stepped underwater forest (7) in a shallow water area near the bank of a water area (1) to be treated, and intercepting and digesting pollutants;
intelligent management steps: and establishing a full-water-area monitoring system, arranging a detection unit for detecting the water quality condition in the water area (1) to be treated, and matching the detection unit with the bidirectional purification and running water system.
2. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 1, which is characterized in that: the manual dry-type scouring and silting method needs to arrange a fence along the edge of a water body and at a river collecting port, then uses a water pump to drain accumulated water in the fence range, and then carries out dredging construction.
3. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 2, which is characterized in that: the dredging construction comprises the steps of flushing river bottom sludge by using a high-pressure water gun, pumping the sludge uniformly stirred by the high-pressure water gun to a sedimentation tank by using a slurry pump, and conveying the sludge fully precipitated in the sedimentation tank to a sludge solidification field for mechanical solidification.
4. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 1, which is characterized in that: the rainwater garden (2) is provided with a 250mm thick gravel cushion layer (21), a 150mm thick gravel layer (22), a 100mm thick gravel layer (23) and a pebble layer (24) from bottom to top, and moisture-proof and drought-resistant vegetation (25) are planted on the gravel layer (23).
5. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 4, wherein the method comprises the following steps: an overflow well (26) is arranged in the rainwater garden (2), the overflow well (26) is communicated with a rainwater pipe network (27), and the rainwater pipe network (27) is communicated with the rainwater recycling pool.
6. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 1, which is characterized in that: the bidirectional purification and water flowing system comprises a water intake (51) arranged near a water area (1) to be treated, a water return pipe is erected between the water intake (51) and the water area (1) to be treated, the water return pipe is arranged along the inner side of the water area (1) to be treated, and the submersible water impeller (4) is arranged on the inner side of the water area (1) to be treated and far away from the water return pipe.
7. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 1, which is characterized in that: the stepped underwater forest (7) comprises an ecological medium box (71), submerged plants (72) and emergent plants (73), wherein the ecological medium box (71) is arranged on the bank side of a water area (1) to be treated, so that the ecological medium box (71) is close to the water surface.
8. The method for comprehensively treating the ecological environment of the water in the landscape water area as claimed in claim 1, which is characterized in that: the full-water-area monitoring system comprises a plurality of water quality detection points arranged in a water area (1) to be treated, the detection units are arranged at the water quality detection points, and when the water quality is detected to be not qualified, the bidirectional purification and water activating system is started.
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