CN220703451U - Ecological regulation system for treating initial rainwater - Google Patents

Ecological regulation system for treating initial rainwater Download PDF

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CN220703451U
CN220703451U CN202321781514.6U CN202321781514U CN220703451U CN 220703451 U CN220703451 U CN 220703451U CN 202321781514 U CN202321781514 U CN 202321781514U CN 220703451 U CN220703451 U CN 220703451U
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ecological regulation
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ecological
sedimentation
water
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王硕
张俊
周小国
雷轰
谢家强
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Yangtze Ecology And Environment Co ltd
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Yangtze Ecology And Environment Co ltd
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Abstract

The utility model provides an ecological regulation system for treating initial rainwater, which comprises a grid canal and a sedimentation zone, wherein a water inlet is connected with a water inlet pipe, and a water outlet of the grid canal is connected with the sedimentation zone; the tail end of the sedimentation zone is provided with a submersible sewage pump; one side of the tail end of the sedimentation area is connected with the ecological regulation area through a first gate and an overflow port, the first gate is opened when mud is discharged from the ecological regulation area, and water enters the ecological regulation area through the overflow port when water enters the ecological regulation area; the ecological regulation area is connected with the advanced treatment area through a second gate, and the treated rainwater is discharged through a water outlet pipe; and the deep treatment area is connected with the grid canal through a circulating pump. Suspended pollutants in the initial rainwater are effectively degraded through the arrangement of the grids and the sedimentation area, the dissolved pollutants are purified by the wetland system arranged in the ecological regulation and storage tank and the advanced treatment area, and finally, the removal effect is improved through the arrangement of the reflux circulation from the tail end to the initial section.

Description

Ecological regulation system for treating initial rainwater
Technical Field
The utility model relates to the technical field of comprehensive water environment treatment, in particular to an ecological regulation and storage system for treating initial rainwater.
Background
In the current comprehensive water environment treatment project, the non-point source pollution treatment is a key ring, and can effectively reduce the non-point source pollution, directly influence the water quality of the river and the lake, and effectively improve the water quality in one step. The prior art for treating the non-point source pollution is divided into source treatment and terminal treatment, wherein the source treatment mainly adopts spongy reconstruction measures, and is an optimal solution for solving the non-point source pollution, but the problems of cost and reconstruction difficulty are related, so that the initial rainwater terminal interception and regulation technology is inoculated.
The conventional initial rainwater end interception and regulation technology is only a simple concrete pool, only has the functions of water storage and water prevention, has high investment cost, poor landscape effect and more complex operation and maintenance management, and finally intercepts and regulates rainwater to be collected into a sewage treatment plant for treatment through a water pump, and influences the concentration of the sewage treatment plant in a factory, so the design of the technical method has the functions of end regulation and treatment, and has the advantages of low cost, good landscape effect, convenience in operation and maintenance and stable treatment effect, and potential value.
Disclosure of Invention
The utility model aims at providing an ecological regulation and storage system for effectively eliminating initial rainwater pollution aiming at a rainwater discharge port existing in a city river and lake; through setting up grid, sedimentation zone as the preliminary treatment district, effectively degrade the suspended pollutant in the initial stage rainwater in the front end to utilize the wetland system that sets up at ecological regulation pond and advanced treatment district to purify the solubility pollutant, finally through setting up the backward flow circulation of terminal to the initial stage, improve the removal effect, can play certain effect of beautifying peripheral view simultaneously.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: an ecological regulation and storage system for treating initial rainwater comprises a pretreatment system and an ecological regulation and storage treatment system; the pretreatment system comprises a grid canal and a sedimentation zone, wherein a water inlet is connected with a water inlet pipe, and a water outlet of the grid canal is connected with the sedimentation zone; the tail end of the sedimentation zone is provided with a submersible sewage pump for discharging mud in the sedimentation zone, and the washed mud-water mixed solution is connected with a municipal sewage pipe network through a mud pipe; one side of the tail end of the sedimentation area is connected with the ecological regulation area through a first gate and an overflow port, the first gate is opened when mud is discharged from the ecological regulation area, and water enters the ecological regulation area through the overflow port when water enters the ecological regulation area; the ecological regulation area is connected with the advanced treatment area through a second gate, and the treated rainwater is discharged through a water outlet pipe; meanwhile, the deep treatment area is connected with the grid canal through a circulating pump, and part of tail water in the deep treatment area is pumped into the grid canal to enter an ecological regulation and storage system for circulating treatment.
The grid canal, the sedimentation area, the ecological regulation area and the advanced treatment area form a group of treatment mechanisms; the ecological regulation system comprises a plurality of groups of treatment mechanisms, wherein the treatment mechanisms are arranged in a staggered manner; the tops of the grid canal and the sedimentation area are sealed by concrete plates, and covered with soil for greening; the top of the ecological regulation area and the top of the deep treatment area are open, and no cover plate is arranged.
A grating is arranged in the grating canal;
the sedimentation area water inlet end is provided with a gate type flushing system, the bottom of the sedimentation area is provided with a mud discharging channel with a certain gradient along the water flow direction and is inclined to the tail end, and the sedimentation area periodically starts a mud discharging pump to automatically dredge and flush the sedimentation area.
The sedimentation area is provided with a hydraulic particle separator, the hydraulic particle separator adopts a stainless steel structure, the sedimentation area is arranged in a modularized manner, and the modules are connected through clamping grooves.
The ecological regulation district bottom is provided with the automatic sprayer of water conservancy for regularly avoid the foul smell that anaerobic produced through the aeration, regularly be used for ecological regulation district to wash the sediment treatment simultaneously, ecological regulation district bottom sets up certain slope and sediment irrigation and drainage ditch for ecological regulation district washing sediment, and behind the mud that ecological regulation district deposited was washed through the automatic sprayer of water conservancy entered the sediment irrigation ditch, finally through the first gate that ecological regulation district and sedimentation zone set up, utilize the sewage pipe network near the sewage pump of sedimentation zone's diving pump to arrange to get into, when the sediment operating mode starts, ecological regulation pond and advanced treatment district are connected the second gate and are closed.
The ecological regulation area adopts an ecological floating bed to seal the top, and a top plate is not arranged.
The ecological floating bed is formed by splicing a plurality of floating plates, and planting bowls are arranged in the floating plates; the adjacent floating plates are fixed through connecting buckles and binding belts; the periphery of the assembled ecological floating bed is provided with a surrounding edge; the ecological floating bed is fixed with the wall of the regulating reservoir through a pre-buried bolt with a hook, and is connected with the pre-buried bolt through a nylon rope; the ecological floating bed plant adopts wet plants with strong pollution resistance, and the planting density is 8-10 clusters/m 2
The advanced treatment area forms a plug flow state by arranging a partition wall, the aquatic plants adopt submerged plants, and the planting density is 10-15 clusters/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The tail end of the advanced treatment area is provided with a circulating pump, tail water is pumped into the front end of the whole system for circulating treatment, and the reflux ratio is 50% -100%; meanwhile, the tail end is provided with a water outlet pipe, and the rainwater in the middle and later stages is discharged through the water outlet pipe.
Two layers of crushed stone fillers with different particle diameters are arranged at the bottom of the advanced treatment area, the particle diameter of the upper layer of filler is 15-20 mm, the particle diameter of the lower layer of filler is 40-50 mm, and the thickness of the lower layer of filler is 0.25-0.3 m.
And the effluent of the advanced treatment area is collected and discharged through a water collecting system arranged at the bottom of the last gallery filler.
The utility model has the beneficial effects that:
1. this ecological regulation system of initial stage rainwater through setting up grid, sedimentation pretreatment district, strengthens the department of going to suspended pollutant in the rain just to utilize the constructed wetland system that sets up in ecological regulation district and advanced treatment district to purify the solubility pollutant, through setting up the backward flow circulation of terminal to the initial stage at last, improve the removal effect, can play certain effect of beautifying peripheral view simultaneously.
2. The precipitation zone is provided with a modular and adjustable hydraulic particle separator for strengthening the removal effect of inorganic particle pollutants, and is convenient for subsequent operation and maintenance flushing while strengthening the precipitation effect.
3. The hydraulic automatic sprayer arranged in the ecological regulation area adopts the jet aeration principle, so that the hydraulic automatic sprayer can not only aerate and oxygenate water bodies, but also play a role in flushing sediment at the bottom. Meanwhile, the ecological floating bed is arranged on the water surface to cover, so that the top plate and the bottom beam column structure of the original regulation and storage pool are reduced, the investment cost is reduced, the landscape is beautified, and meanwhile, the capability of removing soluble pollutants is improved by arranging plants with strong pollution resistance and pollutant absorption capability such as the gulfweed, the Yuanzhen grass and the like.
4. The tail end advanced treatment area fully sinks the water purification capacity of water plant, through setting up the rubble filler of high density submerged plant and bottom, adopts the flow state that push away flow and downstream combined together, degrades the soluble pollutant concentration in the coming water by a wide margin to through the backwash pump that the end set up, increase the dwell time of first rain in the system, improve the effect of going.
5. After the initial rainwater is treated by the system, pollutants are greatly resolved, and tail water can directly discharge nearby natural water bodies.
Drawings
The utility model is further described below with reference to the drawings and examples.
FIG. 1 is a plan view of the present utility model.
Fig. 2 is a view A-A of fig. 1 in accordance with the present utility model.
FIG. 3 is a view B-B of FIG. 1 in accordance with the present utility model.
Fig. 4 is a view of fig. 1C-C in accordance with the present utility model.
In the figure: a water inlet pipe 1, a grid 2, a gate flushing system 3, a submersible sewage pump 4, a hydraulic ejector 5, an ecological floating bed 6, submerged plants 7, a first gate 8, a mud pipe 9, a water outlet pipe 10, a circulating pump 11, a hydraulic particle separator 12, a second gate 13, a mud discharging ditch 14, a crushed stone filler 15, a water collecting pipe system 16, a grid ditch 101, a sedimentation area 201, an ecological regulation area 301 and a deep treatment area 401.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1 to 4, an ecological regulation system for treating initial rainwater includes a pretreatment system and an ecological regulation treatment system; the pretreatment system comprises a grid canal 101 and a sedimentation zone 201, wherein a water inlet is connected with the water inlet pipe 1, and a water outlet of the grid canal 101 is connected with the sedimentation zone 201; the tail end of the sedimentation zone 201 is provided with a submersible sewage pump 4 for discharging mud in the sedimentation zone, and the flushed mud-water mixed solution is connected into a municipal sewage pipe network through a mud discharging pipe 9; one side of the tail end of the sedimentation zone 201 is connected with the ecological regulation zone 301 through a first gate 8 and an overflow port 15, the first gate 8 is opened when the ecological regulation zone 301 discharges mud, and water enters the ecological regulation zone 301 through the overflow port 15 when water enters; the ecological regulation area 301 is connected with the advanced treatment area 401 through a second gate 13, and the treated rainwater is discharged through a water outlet pipe 10; meanwhile, the advanced treatment area 401 is connected with the grid canal 101 through the circulating pump 11, and part of tail water in the advanced treatment area 401 is pumped into the grid canal 101 to enter an ecological regulation system for circulating treatment. Through foretell system, through setting up grid, sedimentation zone as pretreatment area, effectively degrade the suspended pollutant in the initial stage rainwater in the front end to utilize the wetland system that sets up in ecological regulation district 301 and advanced treatment district to purify the solubility pollutant, finally through setting up the backward flow circulation of terminal to the initial stage, improve the removal effect, can play certain effect of beautifying peripheral view simultaneously.
Preferably, the specification of the water inlet pipe 1 is DN800, and the water inlet pipe is a rainwater drainage port; the grid canal 101 is provided with two grids, each grid is provided with a rotary coarse grid 2, and the grid gap is 20mm.
Preferably, the settling zone 201 is provided with two grids, the effective residence time is not less than 2h, each grid is provided with 1 set of hydraulic particle separator 12, the SS316L material is adopted, the water inlet end is provided with two sets of gate flushing systems 3 which are matched with a water storage room, and the tail end is provided with two submersible sewage pumps 4 which are used for the sludge discharge of the settling zone 201. The sedimentation zone 201 is periodically started to automatically dredge and rinse the sedimentation zone by a mud pump.
Preferably, the specification of a single module of the hydraulic particle separator 12 is b×h×l=1500×800×1500, and the hydraulic particle separator is mainly made of stainless steel plates with thickness of 1.5mm and spacing of 100mm, the installation angle is 60 °, the stainless steel plates in the module are of a movable structure, the inclination angle can be adjusted to 90 ° from 60 ° by a screw rod arranged on one side, so that sediment in the inclined plate can be conveniently and automatically cleaned periodically, and the modules are connected through a clamping groove.
Preferably, the sedimentation area 201 is connected with the ecological regulation area 301 through a manual/electric dual-purpose plugboard gate of 800 x 800, and an overflow port is arranged at the upper part.
Preferably, the upper part of the ecological regulation area 301 is covered by an ecological floating bed 6, the ecological floating bed is formed by splicing a plurality of floating plates, and planting bowls are arranged in the floating plates; the adjacent floating plates are fixed through connecting buckles and binding belts; the periphery of the assembled ecological floating bed is provided with a surrounding edge; the ecological floating bed is fixed with the wall of the regulating reservoir through the embedded bolt with the hook, and is connected with the embedded bolt through the nylon rope.
Preferably, the millimeter number of the retained rainwater of the ecological regulation area 301 is 4mm, the bottom is provided with a hydraulic ejector 5 for periodic sludge discharge and aeration oxygenation of the ecological regulation area 301, the hydraulic ejector 5 is arranged on the central line of the ecological regulation area 301, 1.0 x 1.0m sludge discharge ditches 14 with 1% gradient slope to two sides are arranged, the sludge discharge ditches 14 are used for collecting and discharging bottom sludge flushed by the hydraulic ejector 5, 3% gradient is arranged at the bottom of the sludge discharge ditches 14, and finally the sludge is collected into a sludge discharge system of the sedimentation area 201 through a plugboard gate for discharge.
Preferably, the ecological regulation area 301 adopts an ecological floating bed to seal the top, a top plate is not arranged, the investment is saved, and the ecological idea is reflected; the volume of the ecological regulation area is determined according to the interception millimeter number of the initial rain.
Preferably, the ecological regulation tank 301 is connected to the advanced treatment area 401 through an electric and manual board gate of 800 x 800, and the board gate is arranged at the bottom part of the board gate.
Preferably, the advanced treatment area 401 is provided with 3 grids, cheng Tuiliu flow patterns, the effective water depth is 2.0m, the effective volume is 2mm, the intercepting rainwater volume is 2mm, the bottom is provided with crushed stone filler with the thickness of 0.5m, the upper filler with the particle size of 15-20 mm, the lower filler with the particle size of 40-50 mm and the thickness of 0.25m respectively, the tail end is provided with a water outlet channel with the width of 1.0m, the tail end of the water outlet channel is provided with two circulating pumps 11, one circulating pump is used for one circulating pump, and the reflux ratio is 100%.
Preferably, the effluent of the advanced treatment area 401 is collected and discharged through a water receiving pipe system 16 arranged at the bottom of the last gallery filler, the water receiving system is made of PE material, the water receiving pipe system 16 is composed of a water receiving branch pipe of DN50 and a water receiving main pipe of DN100, the water receiving pipe system is distributed in a shape of a Chinese character 'Wang', and the outlet of the water receiving pipe is 200mm lower than the water surface of the advanced treatment area.
Preferably, the ecological floating bed 6 plants mainly comprise wet plants with strong pollution resistance such as powdery green foxtail algae, yuanzhen grass and the like, and the planting density is 10 clusters/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The plant in the advanced treatment area is mainly submerged plant such as high-density herba Sonchi Oleracei and Goldfish algae, and the planting density is 15 clusters/m 2
The gutter inlet treatment of one DN800 arranged beside the discharge opening of a small lake in a certain city in this embodiment has the following operation treatment effects.
Water quality pH CODcr(mg/L) NH 3 -N(mg/L) TP(mg/L)
Drainage of the drain 7.21 220.3 10.52 1.53
System water outlet 7.35 41.5 2.94 0.48
Treatment rate 81.2% 72.1% 68.6%
In practical implementation, the design can remove partial nutrient substances in the exhaust port, the removal rate of COD is 81.2 percent, and the removal rate of NH is 3 The N removal rate was 72.1% and the TP removal rate was 68.6%.

Claims (10)

1. An ecological regulation and storage system for treating initial rainwater is characterized by comprising a pretreatment system and an ecological regulation and storage treatment system; the pretreatment system comprises a grid canal (101) and a sedimentation zone (201), wherein a water inlet is connected with the water inlet pipe (1), and a water outlet of the grid canal (101) is connected with the sedimentation zone (201); the tail end of the sedimentation zone (201) is provided with a submersible sewage pump (4) for discharging mud in the sedimentation zone, and the flushed mud-water mixed solution is connected into a municipal sewage pipe network through a mud discharging pipe (9); one side of the tail end of the sedimentation zone (201) is connected with the ecological regulation zone (301) through a first gate (8) and an overflow port (15), the first gate (8) is opened when the ecological regulation zone (301) discharges mud, and water enters the ecological regulation zone (301) through the overflow port (15) when water enters; the ecological regulation area (301) is connected with the advanced treatment area (401) through a second gate (13), and the treated rainwater is discharged through a water outlet pipe (10); meanwhile, the deep treatment area (401) is connected with the grid canal (101) through a circulating pump (11), and part of tail water in the deep treatment area (401) is pumped into the grid canal (101) to enter an ecological regulation system for circulating treatment.
2. An ecological regulation system for treating initial rainwater according to claim 1, wherein the grid canal (101), sedimentation zone (201), ecological regulation zone (301) and advanced treatment zone (401) form a set of treatment mechanisms; the ecological regulation system comprises a plurality of groups of treatment mechanisms, wherein the treatment mechanisms are arranged in a staggered manner; the tops of the grid canal (101) and the sedimentation area (201) are sealed by concrete plates, and covered with soil for greening; the ecological regulation area (301) and the advanced treatment area (401) are open at the top, and no cover plate is arranged.
3. An ecological regulation system for treating incipient rainwater according to claim 1 or 2, characterized in that the grille (2) is provided inside the grille trench (101);
the sedimentation area (201) is provided with a gate type flushing system (3) at the water inlet end, the bottom of the sedimentation area (201) is provided with a mud discharging channel which is inclined to the tail end along the water flow direction, and the sedimentation area (201) periodically starts a mud discharging pump to automatically dredge and flush the sedimentation area (201).
4. An ecological regulation system for treating initial rainwater according to claim 3, wherein the sedimentation area (201) is provided with a hydraulic particle separator (12), the hydraulic particle separator (12) adopts a stainless steel structure, is arranged in a modularized manner, and the modules are connected through clamping grooves.
5. The ecological regulation system for treating initial rainwater according to claim 1, wherein a hydraulic automatic ejector (5) is arranged at the bottom of the ecological regulation zone (301) and is used for regularly avoiding odor generated by anaerobic treatment through aeration, and is also used for regularly flushing and sludge discharge treatment of the ecological regulation zone (301), and a slope and a sludge discharge ditch (14) are arranged at the bottom of the ecological regulation zone (301).
6. The ecological regulation system for treating initial rainwater according to claim 1, wherein the ecological regulation area (301) is closed at the top by an ecological floating bed (6) without a top plate.
7. The ecological regulation system for treating initial rainwater according to claim 6, wherein the ecological floating bed (6) is formed by splicing a plurality of floating plates, and planting bowls are arranged in the floating plates; the adjacent floating plates are fixed through connecting buckles and binding belts; the periphery of the assembled ecological floating bed (6) is provided with a surrounding edge; the ecological floating bed (6) is fixed with the wall of the regulating reservoir through a pre-buried bolt with a hook, and is connected with the pre-buried bolt through a nylon rope; the ecological floating bed plant adopts wet plants with strong pollution resistance, and the planting density is 8-10 clusters/m 2.
8. The ecological regulation system for treating initial rainwater according to claim 1, wherein the advanced treatment area (401) forms a plug flow state by arranging a partition wall, aquatic plants are planted with submerged plants (7) with a planting density of 10-15 clusters/m 2; the tail end of the advanced treatment area (401) is provided with a circulating pump (11) to pump tail water into the front end of the whole system for circulating treatment, and the reflux ratio is 50% -100%; meanwhile, the tail end is provided with a water outlet pipe (10), and the rainwater in the middle and later stages is discharged through the water outlet pipe.
9. The ecological regulation system for treating initial rainwater according to claim 8, wherein two layers of crushed stone fillers with different particle sizes are arranged at the bottom of the advanced treatment area (401), the particle size of the upper layer of filler is 15-20 mm, the particle size of the lower layer of filler is 40-50 mm, and the thickness of the lower layer of filler is 0.25-0.3 m.
10. The ecological regulation system for treating initial rainwater according to claim 8, wherein the water discharged from the advanced treatment area (401) is collected and discharged through a water receiving pipe system (16) arranged at the bottom of the last gallery filler.
CN202321781514.6U 2023-07-07 2023-07-07 Ecological regulation system for treating initial rainwater Active CN220703451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321781514.6U CN220703451U (en) 2023-07-07 2023-07-07 Ecological regulation system for treating initial rainwater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321781514.6U CN220703451U (en) 2023-07-07 2023-07-07 Ecological regulation system for treating initial rainwater

Publications (1)

Publication Number Publication Date
CN220703451U true CN220703451U (en) 2024-04-02

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ID=90446027

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Application Number Title Priority Date Filing Date
CN202321781514.6U Active CN220703451U (en) 2023-07-07 2023-07-07 Ecological regulation system for treating initial rainwater

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