CN107055941B - River channel ecological treatment system and method for treating river channel by applying same - Google Patents

River channel ecological treatment system and method for treating river channel by applying same Download PDF

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Publication number
CN107055941B
CN107055941B CN201710075251.XA CN201710075251A CN107055941B CN 107055941 B CN107055941 B CN 107055941B CN 201710075251 A CN201710075251 A CN 201710075251A CN 107055941 B CN107055941 B CN 107055941B
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river channel
treatment
ecological
water
biological
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CN107055941A (en
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汤姆斯·王
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汤姆斯·王
刘钊
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds

Abstract

The invention discloses a river channel ecological management system, which comprises a river channel and a revetment, wherein a plurality of ecological biological water treatment systems and rubber retaining dams are arranged on the river channel; side concrete layers are arranged on two sides of the river channel, and a bottom concrete layer is arranged at the bottom of the river channel; the bottom concrete layer is provided with a mud collecting ditch; a micro-wetland ecosystem is arranged between the side concrete layer and the revetment; the micro-wetland ecosystem consists of a rain gutter and aquatic plants, and the lower part of the micro-wetland ecosystem is provided with a sewage gutter. The invention also discloses a method for river regulation by applying the river ecological regulation system. The invention realizes the treatment by sections and the combined treatment, effectively improves the sewage purification efficiency, shortens the treatment period, simplifies the operation flow, reduces the cost and obviously improves the water ecological environment of the riverway.

Description

River channel ecological treatment system and method for treating river channel by applying same
Technical Field
The invention belongs to the technical field of river channel treatment, and particularly relates to a river channel ecological treatment system and a method for treating a river channel by using the river channel ecological treatment system.
Background
In recent years, under the pressure of economic development and population growth, the water consumption of residents in China is increased sharply, but a large amount of sewage is discharged into rivers due to unclear rainwater and sewage diversion, imperfect construction of a matched sewage pipe network, delayed construction of corresponding sewage treatment facilities and the like, so that the ecological environment of a water body is unbalanced, and the environmental problem is prominent. In 2015, the water pollution prevention and control plan discharged from the state academy shows that the improvement of the water environment quality is an urgent and difficult task.
The traditional river regulation method mainly comprises the following steps: building rubber dams, gate dams and other river-blocking buildings, building ecological slopes, cleaning sludge, transferring water and changing water, building a water treatment system on the river sides and the like. The methods are single in use, do not form a system which is correlated with each other, and can destroy the natural ecological environment of the water body, influence the biodiversity, and cause a series of problems of long ecological restoration time, large engineering quantity, high construction cost, unobvious treatment effect and the like.
Chinese patent CN 205821128U discloses an ecological biological water treatment system, which is composed of one or more connected biological treatment units, and mainly comprises a box body, a water inlet and a water outlet, wherein a sedimentation tank, an anaerobic tank, an anoxic tank, a primary biological filter and a secondary biological filter are sequentially arranged in the box body. The water treatment system has the advantages of compact structure, simple and convenient control, small occupied area, good purification effect and wide application range.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a river channel ecological treatment system to improve the treatment efficiency of sewage flowing into a river channel and improve the water ecological environment of the river channel.
The invention also provides a method for river regulation by using the river ecological regulation system.
The purpose of the invention is realized by the following technical scheme:
a river course ecological management system comprises a river course and a revetment, wherein a plurality of ecological biological water treatment systems and rubber retaining dams are arranged on the river course; side concrete layers are arranged on two sides of the river channel, and a bottom concrete layer is arranged at the bottom of the river channel; the bottom concrete layer is provided with a mud collecting ditch; a micro-wetland ecosystem is arranged between the side concrete layer and the revetment; the micro-wetland ecosystem consists of a rain gutter and aquatic plants, and the lower part of the micro-wetland ecosystem is provided with a sewage gutter.
The aquatic plants are aquatic submerged plants, floating plants, emergent plants and the like with strong adaptability and good sewage purification effect.
The thickness of the side concrete layer and the bottom concrete layer is more than 30 cm.
The ecological biological water treatment system is composed of one or more connected biological treatment units.
The biological treatment unit comprises a box body, a water inlet and a water outlet, wherein a sedimentation tank, an anaerobic tank, an anoxic tank, a primary biological filter and a secondary biological filter are sequentially arranged in the box body; the sedimentation tank is communicated with the water inlet; the secondary biological filter is communicated with the water outlet; a baffle and a communicating port are respectively arranged between the sedimentation tank and the anaerobic tank, between the anaerobic tank and the anoxic tank, between the anoxic tank and the first-stage biological filter, and between the first-stage biological filter and the second-stage biological filter; the baffle plates and the communication openings are sequentially staggered from top to bottom.
The water outlet is provided with a pipeline communicated with the rainwater ditch, and the river channel is communicated with the rainwater ditches at two sides.
The interval between the rubber retaining dams is 1-5 kilometers.
The ecological biological water treatment system is arranged between two adjacent rubber retaining dams.
The ecological biological water treatment system is close to a downstream rubber retaining dam.
The aquatic plants are fixed in the rain gutter through the floating plates.
A method for river regulation by using a river ecological regulation system comprises the following steps:
1) uniformly arranging a plurality of rubber retaining dams on the river channel along the water flow direction according to the length of the river channel and the water quantity of the river channel, arranging an ecological biological water treatment system between the rubber retaining dams and at the position close to the downstream rubber retaining dam, performing treatment by sections, treating sewage by using microorganisms after the sewage enters the ecological biological water treatment system, and introducing the treated water into a micro-wetland ecological system;
the interval between the rubber retaining dam and the rubber retaining dam is 1-5 kilometers;
the ecological biological water treatment system consists of one or more connected biological treatment units;
2) a micro-wetland ecosystem is arranged between the side concrete layer and the revetment; the micro-wetland ecosystem consists of a rainwater ditch and aquatic plants, and the aquatic plants are fixed in the rainwater ditch through floating plates; the treated clear water enters a rainwater ditch, the aquatic plants further degrade and absorb rich nutrients in the water, and the water enters a downstream ecological biological water treatment system of a riverway for re-purification treatment to implement combined treatment; the lower part of the micro-wetland ecosystem is provided with a sewage ditch, the sewage ditch collects sewage to be discharged into a river channel and then discharges the sewage into a nearby sewage treatment plant for treatment, and the treated water reaching the standard is discharged into the river channel;
3) side concrete layers are arranged on two sides of the river channel, a bottom concrete layer is arranged at the bottom of the river channel, a sludge collecting ditch is arranged on the bottom concrete layer, and sludge gradually enters the sludge collecting ditch through the sedimentation effect, so that the sludge is convenient to clean in time;
the thickness of the side concrete layer and the bottom concrete layer is more than 30 cm.
The invention has the beneficial effects that:
1. the invention arranges a plurality of rubber retaining dams and ecological biological water treatment systems in the riverway, which can store water for convenient use, constructs respective special water treatment systems between two adjacent rubber retaining dams and connects the water treatment systems with micro-wetland ecological systems at two sides of the riverway, further purifies the water body through aquatic plants, improves the self-purification capacity of the water body, realizes treatment by sections and combined treatment, effectively improves the sewage purification efficiency, shortens the treatment period, simplifies the operation process, reduces the cost and obviously improves the water ecological environment of the riverway.
2. The sewage is discharged into the sewage ditch and then enters the sewage treatment plant for treatment, so that secondary pollution caused by direct discharge into a river channel is reduced; the rainwater of the rainwater ditch is treated by the micro-wetland ecosystem and then discharged into the river channel, so that the difficulty of later-stage sewage treatment can be obviously reduced, the treatment cost is reduced, meanwhile, the aquatic plants have good landscape effect, the landscape of the river channel and the two banks of the river channel is effectively beautified, and the ecological effect of the river channel is greatly improved.
3. The aquatic plants of the invention can be properly replaced according to local climate, water pollution source and the like, and the landscape and the treatment effect are ensured.
4. The invention can reduce the generation amount of sludge, solve the problem of foul smell generated by the bottom sludge of the existing river channel, and simultaneously, the sludge in the sludge collecting ditch can be periodically drained and removed in sections, thereby facilitating and thoroughly removing the sludge at any time and reducing the cost of the sludge removal.
Drawings
FIG. 1 is a schematic plan view of the river ecological management system of the present invention;
3 FIG. 3 2 3 is 3 a 3 schematic 3 view 3 of 3 the 3 A 3- 3 A 3 section 3 structure 3 of 3 the 3 river 3 ecological 3 management 3 system 3 of 3 the 3 invention 3; 3
FIG. 3 is a schematic structural view of a section B-B of the river ecological management system of the invention;
FIG. 4 is a schematic view of the structure of the biological treatment unit of the present invention.
In the figure: 1. a river channel; 2. an ecological biological water treatment system; 3. a rubber dam; 4. a side concrete layer; 5. a bottom concrete layer; 6. a mud collecting ditch; 7. a micro-wetland ecosystem; 8. a rain gutter; 9. an aquatic plant; 10. a sewage ditch; 11. a floating plate; 12. slope protection; 13. a box body; 14. a water inlet; 15 water outlet; 16. a sedimentation tank; 17. an anaerobic tank; 18. an anoxic tank; 19. a first-stage biological filter; 20. a secondary biological filter; 21. a baffle plate; 22. a communication port.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples.
The ecological biological water treatment system (2) of the invention is the same as the patent CN 205821128U 'an ecological biological water treatment system'.
Example 1
As shown in fig. 1-4, a river ecological management system comprises a river 1 and a revetment 12, wherein a plurality of ecological biological water treatment systems 2 and rubber retaining dams 3 are arranged on the river 1; side concrete layers 4 are arranged on two sides of the river channel 1, and a bottom concrete layer 5 is arranged at the bottom of the river channel 1; the bottom concrete layer 5 is provided with a mud collecting ditch 6; a micro-wetland ecosystem 7 is arranged between the side concrete layer 4 and the revetment 12; the micro-wetland ecosystem 7 consists of a rain gutter 8 and aquatic plants 9, and a sewage gutter 10 is arranged at the lower part of the micro-wetland ecosystem 7.
The aquatic plants are aquatic submerged plants, floating plants, emergent plants and the like with strong adaptability and good sewage purification effect.
The thickness of the side concrete layer 4 and the bottom concrete layer 5 is more than 30 cm.
The ecological biological water treatment system 2 is composed of one or more connected biological treatment units.
The biological treatment unit comprises a box body 13, a water inlet 14 and a water outlet 15, wherein a sedimentation tank 16, an anaerobic tank 17, an anoxic tank 18, a primary biological filter 19 and a secondary biological filter 20 are sequentially arranged in the box body 13; the sedimentation tank 16 is communicated with the water inlet 14; the secondary biological filter 20 is communicated with the water outlet 15; a baffle 21 and a communication port 22 are respectively arranged between the sedimentation tank 16 and the anaerobic tank 17, between the anaerobic tank 17 and the anoxic tank 18, between the anoxic tank 18 and the first-stage biological filter 19, and between the first-stage biological filter 19 and the second-stage biological filter 20; the baffles 21 and the communication ports 22 are arranged in a staggered manner from top to bottom.
The water outlet 15 is provided with a pipeline communicated with the rainwater ditch 8, and the river channel 2 is communicated with the rainwater ditches 8 at two sides.
The interval between the rubber dams 3 is 1-5 kilometers.
The ecological biological water treatment system 2 is arranged between two adjacent rubber retaining dams 3.
The ecological biological water treatment system 2 is close to a downstream rubber dam 3.
The aquatic plants 9 are fixed in the storm drain 8 by floating plates 11.
A method for river regulation by using a river ecological regulation system comprises the following steps:
1) along the water flow direction, according to the length of a river channel and the water quantity of the river channel, a plurality of rubber retaining dams 3 are uniformly arranged on the river channel, an ecological biological water treatment system 2 is arranged between the rubber retaining dams 3 and close to the downstream rubber retaining dams 3, the treatment is carried out in a segmented mode, sewage enters the ecological biological water treatment system 2 and then is treated by microorganisms, and the treated water enters a micro-wetland ecological system 7;
the interval between the rubber retaining dam 3 and the rubber retaining dam 3 is 1-5 kilometers;
the ecological biological water treatment system 2 consists of one or more connected biological treatment units;
2) a micro-wetland ecosystem 7 is arranged between the side concrete layer 4 and the revetment 12; the micro-wetland ecosystem 7 consists of a rainwater ditch 8 and aquatic plants 9, and the aquatic plants 9 are fixed in the rainwater ditch 8 through floating plates 11; the treated clear water enters a rainwater ditch 8, rich nutrient components in the water are further degraded and absorbed by aquatic plants 9, and the water enters a downstream ecological biological water treatment system 2 of a riverway 1 for repurification treatment to implement combined treatment; the lower part of the micro-wetland ecosystem 7 is provided with a sewage ditch 10, the sewage ditch 10 collects sewage to be discharged into the river channel 1 and then discharges the sewage into a nearby sewage treatment plant for treatment, and the treated water reaching the standard is discharged into the river channel 1;
3) side concrete layers 4 are arranged on two sides of the river channel 1, a bottom concrete layer 5 is arranged at the bottom of the river channel 1, a sludge collecting ditch 6 is arranged on the bottom concrete layer 5, and sludge gradually enters the sludge collecting ditch 6 through sedimentation, so that the sludge is convenient to clean in time;
the thickness of the side concrete layer 4 and the bottom concrete layer 5 is more than 30 cm.
The foregoing is considered as illustrative of the principles, features and advantages of the present invention, and is not to be construed as limiting the invention in any way. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and various modifications and changes may be made based on the embodiments, and equivalents made within the scope of the claims are to be included in the scope of the present invention.

Claims (6)

1. A river channel ecological management system comprises a river channel (1) and a revetment (12), and is characterized in that a plurality of ecological biological water treatment systems (2) and rubber retaining dams (3) are arranged on the river channel (1); side concrete layers (4) are arranged on two sides of the river channel (1), and a bottom concrete layer (5) is arranged at the bottom of the river channel (1); the bottom concrete layer (5) is provided with a mud collecting ditch (6); a micro-wetland ecosystem (7) is arranged between the side concrete layer (4) and the revetment (12); the micro-wetland ecosystem (7) consists of a rain gutter (8) and aquatic plants (9), and a sewage gutter (10) is arranged at the lower part of the micro-wetland ecosystem (7);
the ecological biological water treatment system (2) consists of one or more connected biological treatment units;
the biological treatment unit comprises a box body (13), a water inlet (14) and a water outlet (15), wherein a sedimentation tank (16), an anaerobic tank (17), an anoxic tank (18), a primary biological filter (19) and a secondary biological filter (20) are sequentially arranged in the box body (13); the sedimentation tank (16) is communicated with the water inlet (14); the secondary biological filter (20) is communicated with the water outlet (15); a baffle (21) and a communication port (22) are respectively arranged between the sedimentation tank (16) and the anaerobic tank (17), between the anaerobic tank (17) and the anoxic tank (18), between the anoxic tank (18) and the primary biological filter (19), and between the primary biological filter (19) and the secondary biological filter (20); the baffle plates (21) and the communication ports (22) are sequentially staggered from top to bottom;
the ecological biological water treatment system (2) is arranged between two adjacent rubber retaining dams (3) and is close to the downstream rubber retaining dam (3).
2. The ecological riverway treatment system according to claim 1, wherein the thickness of the side concrete layers (4) and the bottom concrete layer (5) is 30cm or more.
3. The ecological riverway treatment system according to claim 1, wherein the water outlet (15) is provided with a pipeline communicated with the rain gutters (8), and the riverway (1) is communicated with the rain gutters (8) on two sides.
4. The ecological riverway treatment system according to claim 1, wherein the rubber dams (3) are spaced at intervals of 1-5 km.
5. The river ecological management system according to claim 1, wherein the aquatic plants (9) are fixed in the storm drain (8) by floating plates (11).
6. A method for river channel ecological management of the river channel ecological management system of any one of claims 1 to 5, which is characterized in that the method specifically comprises the following steps:
1) uniformly arranging a plurality of rubber retaining dams (3) on the river channel along the water flow direction according to the length of the river channel and the water quantity of the river channel, arranging an ecological biological water treatment system (2) between the rubber retaining dams (3) and at the position close to the downstream rubber retaining dam (3), performing treatment by sections, treating sewage by using microorganisms after the sewage enters the ecological biological water treatment system (2), and introducing the treated water into a micro-wetland ecological system (7);
the interval between the rubber retaining dam (3) and the rubber retaining dam (3) is 1-5 kilometers;
the ecological biological water treatment system (2) consists of one or more connected biological treatment units;
2) a micro-wetland ecosystem (7) is arranged between the side concrete layer (4) and the revetment (12); the micro-wetland ecosystem (7) consists of a rainwater ditch (8) and aquatic plants (9), wherein the aquatic plants (9) are fixed in the rainwater ditch (8) through a floating plate (11); the treated clear water enters a rainwater ditch (8), is further degraded and absorbs rich nutrient components in the water through aquatic plants (9), and then enters a downstream ecological biological water treatment system (2) of the river channel (1) for repurification treatment to implement combined treatment; the lower part of the micro-wetland ecosystem (7) is provided with a sewage ditch (10), the sewage ditch (10) collects sewage to be discharged into the river channel (1) and then discharges the sewage into a nearby sewage treatment plant for treatment, and the treated water reaching the standard is discharged into the river channel (1);
3) side concrete layers (4) are arranged on two sides of the river channel (1), a bottom concrete layer (5) is arranged at the bottom of the river channel (1), a sludge collecting ditch (6) is arranged on the bottom concrete layer (5), and sludge gradually enters the sludge collecting ditch (6) through sedimentation so as to be convenient for timely cleaning the sludge;
the thickness of the side concrete layer (4) and the bottom concrete layer (5) is more than 30 cm.
CN201710075251.XA 2017-02-13 2017-02-13 River channel ecological treatment system and method for treating river channel by applying same Active CN107055941B (en)

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CN108824372B (en) * 2018-06-29 2020-04-03 上海理工大学 Semi-fixed ecological dam
CN109095706A (en) * 2018-07-30 2018-12-28 厦门水世纪环保科技有限公司 A kind of river channel ERP integration cuts dirty governing system and method
CN109574391A (en) * 2018-12-17 2019-04-05 重庆工商大学 The pollution of moisturizing water system dystopy ecological canal intercepts purification method
CN110761241A (en) * 2019-09-03 2020-02-07 华北水利水电大学 City river course ecology defense
CN110485380A (en) * 2019-09-06 2019-11-22 黄芳 A kind of river channel ecology improvement air bag regulating barrage
CN111115835B (en) * 2020-01-15 2021-05-07 中国水利水电科学研究院 Natural river sewage control system and method and design method

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