CN211445422U

CN211445422U - Ecological restoration system for black and odorous rivers

Info

Publication number: CN211445422U
Application number: CN201922021804.0U
Authority: CN
Inventors: 柯友青; 易聪; 张燊; 郭松伟; 沈浩楠; 付仕豪; 刘鹏; 樊鸿为
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-09-08
Anticipated expiration: 2029-11-20

Abstract

The utility model provides an ecological remediation system that black and odorous river gushed, this system includes: the point source treatment module comprises a purification tank connected with a sewage discharge outlet, the purification tank is arranged on the river bank, a purification medium is filled in the purification tank, and sewage of the sewage discharge outlet flows into the river channel after being purified by the purification medium; the system comprises an endogenous management module and a plurality of ecological management modules, wherein the endogenous management module comprises aeration equipment and a floating island which are arranged in a riverway, the floating island is arranged around a purification tank, a first emergent aquatic plant is planted on the floating island, and an ecological base is arranged at the lower part of the floating island; the non-point source treatment module comprises slope vegetation and second emergent aquatic plants, wherein the slope vegetation is planted on the banks on two sides of the river channel, and the second emergent aquatic plants are planted on two sides of the river channel; and the monitoring module comprises a monitoring device arranged on the aeration equipment. The utility model provides a black and odorous water body's traditional treatment effect poor, the short problem of duration.

Description

Ecological restoration system for black and odorous rivers

Technical Field

The utility model relates to an environmental protection technical field, concretely relates to ecological remediation system that black and odorous river gushes.

Background

While the living standard of people is improved, the living environment, especially the water environment quality is concerned more and more in various places, and the environmental protection and treatment become hot problems.

In the actual river surge treatment process, the treatment of the black and odorous water body is extremely complicated. Because the water body is generally positioned in residential areas or industrial areas and the like, the pollution sources and the pollution components of the water body environment are rich and diverse, and the water body treatment process is balanced by various factors such as traffic, residential life, factory operation and the like. The traditional means and technology are adopted for treatment, the cost is high, the effect is poor, the duration is short, and the purpose of radical treatment is difficult to achieve. And the chemical means is adopted for treatment, so that the harm to the water body is large, and the water body environment can be further damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, an ecological restoration system for black and odorous rivers is provided so as to solve the problems of poor traditional treatment effect and short duration of black and odorous water bodies.

In order to achieve the above object, there is provided an ecological restoration system for black-odor rivers, comprising:

the point source treatment module comprises a purification tank connected with a sewage discharge outlet, the purification tank is arranged on the river bank, a purification medium is filled in the purification tank, and sewage of the sewage discharge outlet flows into the river channel after being purified by the purification medium;

the system comprises an endogenous management module and a plurality of ecological management modules, wherein the endogenous management module comprises aeration equipment and a floating island which are arranged in a riverway, the floating island is arranged around a purification tank, a first emergent aquatic plant is planted on the floating island, and an ecological base is arranged at the lower part of the floating island;

the non-point source treatment module comprises slope vegetation and second emergent aquatic plants, wherein the slope vegetation is planted on the banks on two sides of the river channel, and the second emergent aquatic plants are planted on two sides of the river channel; and

the monitoring module comprises a monitoring device for acquiring hydrological data of the river channel in real time, the monitoring device is installed in the river channel, and the installation position of the monitoring device corresponds to the aeration equipment.

Further, the purifying tank includes first cell body and the second cell body that sets up side by side, the lower part of first cell body communicate in the lower part of second cell body, first cell body connect in the drain, being close to of second cell body one side in the river course is formed with communicate in the overflow breach in river course, the purifying medium fill in first cell body with in the second cell body.

Further, the purification medium comprises a gravel layer, a melon seed sheet layer and a rice sand layer which are laid in a layered mode from bottom to top.

Furthermore, wetland plants are planted on the rice sand layer.

Further, the aeration equipment comprises a first aeration device, a second aeration device and a third aeration device, wherein the first aeration device is arranged on two sides of the river channel along the length direction of the river bank, the second aeration device is arranged in the upper water area of the river channel, and the third aeration device is arranged below the ecological base.

Furthermore, an anti-seepage revetment is formed by pouring on two sides of the river channel, and the first aeration device is installed on one side, facing the river channel, of the anti-seepage revetment.

Furthermore, the floating island comprises a floating part, a planting groove is formed in the floating part, the first emergent aquatic plant is planted in the planting groove, and a through water guide hole is formed in the bottom of the planting groove.

Furthermore, the floating piece is connected with a floating ball which is suspended above the sediment of the river channel, the floating ball is provided with a built-in cavity, the built-in cavity is filled with a modifying agent, and the side wall of the floating ball is provided with a through release hole.

Further, the modifying agent comprises a water quality modifying agent and a bottom mud modifying agent.

The beneficial effects of the utility model reside in that, the utility model discloses an ecological remediation system of black and odorous river gushes passes through the drain that the pollution source was directly docked to the purification tank, purify sewage in advance in the river course to the back row, purify sewage once more through the second emergent aquatic plant that sets up the first emergent aquatic plant of aeration equipment supplementary chinampa and face source module in the river course, the hydrology information of the river water of the river course of the position department of aeration equipment is acquireed in real time to the monitoring device who utilizes monitoring module, can monitor quality of water on the one hand, on the other hand can monitor aeration equipment whether normal operating indirectly, in addition, it intercepts rain sewage to plant domatic vegetation at the bank through face source treatment module, alleviate the sewage purification pressure in the river course, the sewage purification efficiency in the river course has been improved. The utility model discloses an ecological remediation system that black and odorous river gushes utilizes multiple purification means collocation, reaches the purpose of building stable good water ecosystem in river course, recovering river course water environment, and whole investment is little, and it is few to account for the area, and is effectual, and can promote the view effect of river course water.

Drawings

Fig. 1 is a schematic structural diagram of an ecological restoration system of black-odor rivers according to an embodiment of the present invention.

Fig. 2 is a plant layout diagram of the ecological restoration system of black and odorous rivers of the embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a purification tank according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a floating island according to an embodiment of the present invention.

Fig. 5 is a schematic view showing an installation state of the first aeration apparatus according to the embodiment of the present invention.

Fig. 6 is a schematic view showing an installation state of the second aeration apparatus according to the embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

FIG. 1 is a schematic structural view of an ecological restoration system for black-odor rivers according to an embodiment of the present invention,

Fig. 2 is a plant layout diagram of an ecological restoration system of black and odorous rivers, fig. 3 is the utility model discloses a structural schematic diagram of purification pond, fig. 4 is the structural schematic diagram of the chinampa of utility model embodiment, fig. 5 is the installation state schematic diagram of the first aeration equipment of utility model embodiment, fig. 6 is the installation state schematic diagram of the second aeration equipment of utility model embodiment.

Referring to fig. 1 to 6, the utility model provides an ecological remediation system that black and odorous rivers gush, include: the system comprises a point source treatment module, an internal source treatment module, a surface source treatment module and a monitoring module.

Specifically, the point source treatment module comprises a purification pool 1 and a purification medium 2. The purification tank 1 is connected with a sewage draining outlet. The purification tank 1 is arranged on the river bank. The purification tank 1 is filled with a purification medium 2. The sewage outlet of the sewage discharge pipe 9 discharges the sewage into the purification tank. The sewage is purified by the purification medium 2 and then flows into the river channel.

The endogenous treatment module comprises aeration equipment and a floating island 5. The aeration equipment and the floating island 5 are arranged in the river channel. A floating island 5 is disposed around the purification tank 1. A first emergent aquatic plant 52 is planted on the floating island 5. The ecological base 53 is installed at the lower part of the floating island 5.

The non-point source treatment module comprises slope vegetation 6 and a second emergent aquatic plant 7. The slope vegetation 6 is planted on the river banks on both sides of the river channel. The second emergent aquatic plants 7 are planted on both sides of the river.

The monitoring module comprises a monitoring device. The monitoring device is arranged in the river channel corresponding to the position of the aeration equipment.

According to the river in-situ ecological restoration system, the purification tank is directly abutted with the sewage discharge outlet of the pollution source, sewage is subjected to pre-purification treatment and then discharged into the river channel, the aeration device is arranged in the river channel to assist the first emergent aquatic plant of the floating island and the second emergent aquatic plant of the surface source module to purify the sewage again, the monitoring device of the monitoring module is used for acquiring hydrological information of river water of the river channel at the position of the aeration device in real time, on one hand, the water quality can be monitored, on the other hand, whether the aeration device normally operates can be indirectly monitored, in addition, the surface source treatment module plants slope vegetation on the bank to intercept rain and sewage, the sewage purification pressure in the river channel is reduced, and the sewage purification efficiency in the river channel is improved. The utility model discloses an ecological remediation system that black and odorous river gushes utilizes multiple purification means collocation, reaches the purpose of building stable good water ecosystem in river course, recovering river course water environment, and whole investment is little, and it is few to account for the area, and is effectual, and can promote the view effect of river course water.

As a preferred embodiment, referring to fig. 1 and 3, the purification tank 1 comprises a first tank body and a second tank body arranged side by side. The lower part of the first tank body is communicated with the lower part of the second tank body. The first tank body is connected with a sewage draining outlet. An overflow notch communicated with the river channel is formed at one side of the second tank body close to the river channel. The purifying medium 2 is filled in the first tank body and the second tank body.

In this embodiment, the purification tank is divided into a first tank body and a second tank body by a middle partition plate 11. The bottom of the purification tank is closed by an impermeable membrane 12. The bottom of the middle clapboard 11 is suspended above the impermeable membrane 12 at the bottom of the purifying tank, so that the bottom of the first tank body is communicated between the bottoms of the second tank bodies.

With continued reference to fig. 3, the purification medium 2 comprises a stone breaker layer 23, a melon seed layer 22 and a rice sand layer 21 layered from bottom to top. Wetland plants are planted on the rice sand layer 21.

Particle size range of crushed stone of the crushed stone layer: 40 mm-60 mm.

The particle size range of the melon seed slices of the melon seed slice layer is as follows: 10 mm-30 mm.

The grain size range of the rice sand layer is as follows: 2 mm-4 mm.

As a preferred embodiment, wetland plants include, but are not limited to: one or more of herba Centellae, herba Lydrobii, Alismatis rhizoma, rhizoma Typhae, rhizoma Acori Calami, LIHUA, and rhizoma Iridis Tectori.

Purification path of sewage in the purification tank: the sewage flows into the river channel after passing through the first tank body on the left side and the second tank body on the right side. Specifically, the sewage flows into the river channel after passing through the wetland plants above the first tank body, the rice sand layer of the first tank body, the melon seed skin layer and the crushed stone layer, and then passing through the crushed stone layer of the second tank body, the melon seed sheet layer, the rice sand layer and the wetland plants above the second tank body.

As a preferred embodiment, the aeration apparatus comprises a first aeration device 41, a second aeration device 42 and a third aeration device. The first aeration apparatuses 41 are provided at both sides of the river along the length direction of the river bank. The second aeration apparatus 42 is provided in the upper water of the river. The third aeration device is installed below the ecological base 53.

The first aeration apparatus 41, the second aeration apparatus 42 and the third aeration apparatus may be aeration apparatuses depending on the use environment, including but not limited to: one or more of a submerged microporous aerator, a micro-nano plug flow aerator, a fountain type surface aerator and an enhanced coupled biofilm reactor (EHBR).

In this embodiment, the submerged micro-aerator is a NANO-submerged micro-aerator. The diameter of an aeration disc of the NANO-submerged microporous aerator is 60-80 cm, the diameter of air bubbles is 0.02-0.1 mm, and the aeration flux is 0.004-0.013 m/min.

The micro-nano plug flow aerator has the bubble diameter of 5-25 microns and the aeration flux of 0.003-0.0093 m/min, and is mainly used for treating river surge, especially the pollution at the intersection of tidal river surge.

The enhanced coupling biofilm reactor (EHBR) is formed by combining a plurality of groups of membranes, and the length of the EHBR is flexibly adjusted along with the length of a river, and is generally 3-6 m. The aeration flux is 2.5L/min-3L/min.

Besides the actual operation number, the air supply fan of the aeration equipment is additionally provided with at least one standby fan. The model of the blower is a Roots blower. According to the actual conditions, the floating platform is flexibly erected on a shore or water surface platform.

In a preferred embodiment, two sides of the river channel are cast with anti-seepage revetments 8 along the length direction of the river channel. The first aeration device 41 is installed on the side of the impermeable revetment 8 facing the river. Referring to fig. 5, the first aeration device is sunk into a river channel and comprises a gas pipe arranged on the water facing side of the anti-seepage revetment, a plurality of branch gas hoses are connected to the gas pipe, and the branch gas hoses are connected to the rolled aeration disc.

Referring to fig. 1 and 4, the second aeration apparatus 42 is provided in the upper water of the river. The second aeration apparatus 42 is a fountain type surface aerator, which not only forms a landscape to improve ornamental value, but also increases the oxygen content of river water to promote the generation of microorganisms.

Referring to fig. 1, 2 and 4, the floating island 5 includes a floating member 51, a planting groove is formed on the floating member 51, the first emergent aquatic plant 52 is planted in the planting groove, and a water guiding hole is formed at the bottom of the planting groove. In this embodiment, the buoyant member is a lightweight board such as a foam board. The edge of the floating piece is connected with a buoy, and the buoy is provided with a circle along the outer edge of the floating piece so as to further increase the buoyancy of the floating island. The floating piece is connected with an anchor cable, the anchor cable is connected with an anchoring block, and the anchoring block sinks into the bottom of a river channel to avoid the floating island from flowing along with waves.

The ecological base is connected to the floating body and below the suspension floating body. In particular, the specific surface area of the ecological base is more than 5000m²/m³And the length is 1 m.

The first emergent aquatic plant is one or more of herba Lysimachiae Christinae, Alismatis rhizoma, rhizoma Typhae, rhizoma Acori Calami, Reli flower, and rhizoma Iridis Tectori.

Further, the floating member 51 is connected with a floating ball suspended above the bottom mud of the river. The suspension ball has a built-in cavity. The built-in cavity is filled with a modifier. The side wall of the floating ball is provided with a through release hole. The suspending ball is filled with a modifier, and the modifier comprises a water quality modifier and a bottom mud modifier.

In this embodiment, the water quality improver is a high-efficiency composite bacteria water quality improver comprising a combination of photosynthetic bacteria, lactic acid bacteria, yeast, actinomycetes, and the like.

The sediment improver comprises one or more of polymeric aluminum oxide, alum and zeolite powder.

The modifier is arranged in the built-in cavity of the floating ball, and the modifier is released into the river channel through the release holes in the suspension floating process of the floating ball so as to improve the water quality and improve the bottom mud of the river channel.

In some embodiments, aquatic plants are also planted beneath the floating island, the aquatic plants including one or more of lotus, cattail, calamus, reshizus, iris, hydrilla verticillata, tape grass, watermifoil, and goldfish. Aquatic animals including freshwater mussel, Arrowia snail, radix Raphani snail, silver carp, Aristichthys nobilis, mandarin fish and Channa argus are bred in the river channel.

In the present embodiment, the number of the monitoring devices is plural. Monitoring devices are respectively put near the fan and the aerator. Specifically, the monitoring device is an LOBO buoy which is used for detecting parameters such as dissolved oxygen, water temperature and nitrate in the water body in real time.

The LOBO (sea/land biological geochemistry observation station) provides conventional, powerful and accurate water quality measurement for a real-time water quality monitoring system and an LOBO buoy, and is particularly suitable for sensitive and various ecological areas such as estuaries, inland water bodies and the like, such as near shore.

The LOBO buoy comprises a water quality sensor, a buoy, a single chip microcomputer, a power supply and a wireless transmission system. The water quality sensor, the power supply, the single chip microcomputer and the wireless transmission system are respectively arranged in the buoy. The water quality sensor acquires hydrological data, and the singlechip automatically processes and files the water level data and uploads the water level data to the network platform through the transmission-free system. As long as the LOBO buoy is thrown into a corresponding river channel of the aerator or the fan, a worker can check hydrological data automatically uploaded to the network platform by the LOBO buoy through a mobile phone and a computer at any time so as to feed back the running conditions and fault point notifications of the fan and the aeration equipment.

In this embodiment, the impermeable revetment can be used for stabilizing and protecting the bank slope through one or more of gabions, wooden piles, concrete and gravels.

If a large amount of continuous pollution is discharged in the river or the thickness of the sediment is more than 0.3m, the source control sewage interception and sediment dredging should be firstly carried out.

The utility model provides a river normal position repairing method, including following step:

and S1, discharging the sewage into the purification tank 1 of the point source treatment module through a sewage outlet of the sewage discharge pipe 9.

S2, the sewage discharged into the purifying pool 1 is primarily purified by the purifying medium 2 and then flows into the river channel.

S3, primarily purifying the sewage, under the coordination of the aeration equipment of the internal source treatment module installed in the river channel, further purifying the river channel by the first emergent aquatic plants 52 and the ecological base 53 on the floating island 5 of the internal source treatment module and the second emergent aquatic plants 7 of the surface source treatment module planted on the two sides of the river channel so as to carry out in-situ ecological restoration, wherein the slope vegetation 6 of the surface source treatment module is planted on the river banks on the two sides of the river channel so as to intercept rain sewage, the monitoring device of the monitoring module is installed at the corresponding position of the aeration equipment of the internal source treatment module in the river channel so as to acquire hydrological data in real time, and the running condition of the aeration equipment is monitored. It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the present invention, which are intended to be limited only by the scope of the appended claims.

Claims

1. An ecological restoration system of black and odorous rivers, characterized by includes:

2. The ecological restoration system for the black-odor river according to claim 1, wherein the purification tank comprises a first tank body and a second tank body which are arranged side by side, the lower portion of the first tank body is communicated with the lower portion of the second tank body, the first tank body is connected to the sewage outlet, an overflow notch communicated with the river channel is formed at one side of the second tank body close to the river channel, and the purification medium is filled in the first tank body and the second tank body.

3. The ecological restoration system for black-odor rivers according to claim 2, wherein the purification medium comprises a gravel layer, a melon seed layer and a rice sand layer which are layered from bottom to top.

4. The ecological restoration system for black-odor rivers according to claim 3, wherein wetland plants are planted on the rice sand layer.

5. The ecological restoration system for black and odorous rivers according to claim 1, wherein the aeration equipment comprises a first aeration device, a second aeration device and a third aeration device, the first aeration device is arranged on two sides of the river along the length direction of the river bank, the second aeration device is arranged in the upper water area of the river, and the third aeration device is arranged below the ecological base.

6. The ecological restoration system for black-odor river according to claim 5, wherein two sides of the river channel are formed with anti-seepage revetments by casting, and the first aeration device is installed on one side of the anti-seepage revetments facing the river channel.

7. The ecological restoration system for black and odorous rivers according to claim 1, wherein the floating island comprises a floating member, a planting groove is formed on the floating member, the first emergent aquatic plant is planted in the planting groove, and a water guide hole is formed in the bottom of the planting groove.

8. The ecological restoration system for black and odorous river surge according to claim 7, wherein the floating member is connected with a floating ball suspended above bottom mud of the river, the floating ball is provided with a built-in cavity filled with a modifying agent, and the side wall of the floating ball is formed with through release holes.

9. The ecological restoration system for black-odor rivers according to claim 8, wherein the modifying agent comprises a water quality modifying agent and a bottom mud modifying agent.