CN110092546B - River channel treatment and purification method - Google Patents
River channel treatment and purification method Download PDFInfo
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- CN110092546B CN110092546B CN201910439495.0A CN201910439495A CN110092546B CN 110092546 B CN110092546 B CN 110092546B CN 201910439495 A CN201910439495 A CN 201910439495A CN 110092546 B CN110092546 B CN 110092546B
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- river
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- river channel
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- 238000000746 purification Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 241000195493 Cryptophyta Species 0.000 claims abstract description 32
- 241000251468 Actinopterygii Species 0.000 claims abstract description 19
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 239000013049 sediment Substances 0.000 claims abstract description 9
- 235000016709 nutrition Nutrition 0.000 claims abstract description 8
- 230000035764 nutrition Effects 0.000 claims abstract description 8
- 241000196324 Embryophyta Species 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- 241001519451 Abramis brama Species 0.000 claims description 6
- 241000252232 Hypophthalmichthys Species 0.000 claims description 6
- 241000252234 Hypophthalmichthys nobilis Species 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 244000257727 Allium fistulosum Species 0.000 claims description 3
- 235000008553 Allium fistulosum Nutrition 0.000 claims description 3
- 241000252228 Ctenopharyngodon Species 0.000 claims description 3
- 241000252230 Ctenopharyngodon idella Species 0.000 claims description 3
- 241000252210 Cyprinidae Species 0.000 claims description 3
- 241000252233 Cyprinus carpio Species 0.000 claims description 3
- 241000746966 Zizania Species 0.000 claims description 3
- 235000002636 Zizania aquatica Nutrition 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000012851 eutrophication Methods 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ocean & Marine Engineering (AREA)
- Microbiology (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a river channel treatment and purification method, which comprises the steps of cleaning deposited sediments in a river by adopting a river channel water body purification mechanism with a conical structure, then treating aquatic algae on the river surface by adopting a river surface interception structure, wherein the river surface interception structure comprises two turntables arranged on two sides of the river, a cable bypasses the two turntables and stretches across the river surface, plastic floating balls at certain intervals are tied on the cable, then the artificial aeration mode is adopted for reoxygenation of the river water, finally a water blocking weir is arranged in the center of the river channel, biological nutrition removal ponds are arranged on the two sides of the river channel, and a fish pond and an aquatic plant pond are separated by a mesh screen through which water flow can pass for carrying out nutrition removal treatment.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a river channel treatment and purification method.
Background
For example, in cities or scenic spots, due to the health requirements of ecological environment or the irrigation requirements in agriculture and forestry, the original natural river channel is often required to be utilized, or an artificial river channel method is adopted, water flow is introduced from upstream to form a certain river in the local to meet the requirements of environmental improvement or industrial and agricultural production, at present, in urban, urban or rural rivers, eutrophication is a common water pollution phenomenon, and the eutrophication is caused by excessive content of plant nutrients such as nitrogen, phosphorus and the like, and the conditions for eutrophication in natural water mainly comprise sufficient nutrients such as N, P and the like, slower water flow speed and higher temperature.
Disclosure of Invention
In order to solve the technical problems, the invention provides a river channel treatment and purification method aiming at small natural or artificial river channels.
The complete technical scheme of the invention comprises the following steps:
a river regulation and purification method comprises the following steps:
(1) river channel sludge treatment
The river water body purification structure adopts a conical structure, and comprises a sand interception part arranged in a river channel and a sedimentation tank arranged beside the river channel, wherein the sand interception part comprises a conical part with the front end positioned below the water surface, sedimentation surfaces are formed on two sides of the conical part, and the sedimentation tank is arranged on the shore to clean deposited sediments;
(2) river surface aquatic algae treatment
A river surface interception structure is adopted to treat aquatic algae on the river surface, the river surface interception structure comprises two turntables arranged on two sides of a river, a cable bypasses the two turntables and stretches across the river surface, plastic floating balls spaced at a certain distance are tied on the cable, the floating balls float on the river surface, the aquatic algae are stacked on the cable through the interception effect of the floating balls, the turntables rotate, and the floating balls and the aquatic algae stacked on the floating balls are sequentially pulled to the sides of the river and cleaned.
The river surface interception structure and the water body purification structure in front are arranged at intervals in sequence.
(3) Artificial aeration
After removing the sediment in the river course and removing the aquatic algae, adopt the mode of artifical aeration to reoxygenate for the river water, specifically for adopting 10 KW's aeration equipment, in passing through the aeration pipe of intake-tube connection in the river with gas through the air pump, aeration equipment operates 8 ~ 10 hours every day.
(4) Treatment for removing nutrition
A water retaining weir is arranged in the center of the river channel, biological nutrition removing ponds are arranged on two sides of the river channel, a fish pond and an aquatic plant pond are separated by a mesh screen through which water can pass, river water is retained by the water retaining weir and sequentially flows through the fish pond and the aquatic plant pond, various edible fishes such as silver carps, bighead carps, grass carps, breams, carps and the like are put in the fish pond, and the aquatic algae fished in the step (2) can be placed in the fish pond for eating, wherein the ratio of the stocking is (silver carps + bighead carps): (grass carp + bream): carp: 10:30: 10. And (3) planting allium fistulosum, wild rice stem, golden fish algae and the like in the aquatic plant pool in a planting ratio of 15:10: 2.
Compared with the prior art, the invention has the advantages that: the invention is comprehensively applied by various treatment modes and is purposefully distributed and treated, firstly, the sediment in the river is removed, so that the river channel is preliminarily cleaned, meanwhile, the generated aquatic algae are intercepted and removed, the aquatic algae are prevented from further propagating and polluting the water area, the nitrogen and phosphorus content is reduced by artificial aeration reoxygenation and finally, the comprehensive treatment of fishes and plants is carried out, the river channel is effectively treated, and the relapse is not easy to occur.
Drawings
FIG. 1 is a schematic view of a river surface aquatic algae interception structure according to the present invention.
FIG. 2 is a schematic view of the de-nutrition process of the present invention.
In the figure, 1-rotating disc, 2-mooring rope, 3-plastic floating ball, 4-aquatic algae, 5-water retaining weir, 6-mesh screen, 7-fish pond and 8-aquatic plant pond.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, the river regulation and purification method of the invention,
a river regulation and purification method comprises the following steps:
(1) river channel sludge treatment
The common riverway sludge comprises silt brought upstream, deposition caused by the fact that the flow speed is reduced, domestic garbage and crop wastes such as straws along a river, and the like, wherein the sludge in the riverway enables the water quality to become black and poor, meanwhile, favorable conditions are provided for the growth of aquatic algae, meanwhile, the water level is raised due to excessive sludge, the flow speed is further reduced, and the growth of the aquatic algae is facilitated. So that the sludge of the river is cleaned first.
The water body purification structure comprises a sand interception part arranged in a river channel and a deposition part arranged beside the river channel, wherein the sand interception part comprises a conical part with the front end facing to the water flow direction and used for shunting, the top of the conical part is positioned below the water surface, a certain cone angle α is arranged from front to back in the vertical direction, the included angle of the conical part in the horizontal direction is β, deposition surfaces are formed on two sides, the cross section of each deposition surface is in the shape of two arcs, the curvature of a first arc of an upper section is larger, a negative included angle gamma is formed at a position intersected with the top to form a convolution part, the curvature of a second arc of a lower section is smaller than that of the first arc, the deposition part comprises a first deposition groove and a second deposition groove, the first deposition groove is close to the river bank, the second deposition groove is separated from the first deposition groove through an isolation dam, the first deposition groove is separated from the second deposition groove through the isolation dam, the bottom is communicated, the highest height of the sand interception part is 0.6-0.8 times of water depth, and the range of the gamma value of the bottom of the water interception part is 30-35-30 range of β degrees.
(2) River surface aquatic algae treatment
The algae in rivers will rapidly proliferate and grow in large numbers when conditions are appropriate, sometimes even covering approximately 60% to 80% of the water surface. The ecological system in the river water is easy to collapse. At present, the river surface covered by the aquatic algae is mainly treated by adopting a manual salvage mode, the treatment efficiency is low, and a large amount of labor is consumed. Firstly, the invention adopts a simple river surface interception structure to treat aquatic algae on the river surface, as shown in figure 1, two turntables 1 are arranged on two sides of the river, a cable 2 bypasses the two turntables and stretches across the river surface, plastic floating balls 3 which are spaced at certain intervals are tied on the cable, the floating balls float on the river surface, the aquatic algae 4 are accumulated on the cable through the interception function of the floating balls, the turntables rotate to drive the cable, and the floating balls and the aquatic algae accumulated on the floating balls are sequentially pulled to the sides of the river surface and cleaned.
The river surface interception structure and the water body purification structure in front are sequentially arranged at intervals, so that sediment at the bottom of the river and algae on the river surface can be effectively removed.
(3) Artificial aeration
After removing the sediment in the river course and getting rid of the surface of water algae, adopt the mode of artifical aeration to reoxygenate for the river water, specifically for adopting 10 KW's aeration equipment, in passing through the aeration pipe of intake-tube connection to river with gas through the air pump, aeration equipment operates 8 ~ 10 hours every day.
(4) Treatment for removing nutrition
The key of river eutrophication treatment is to reduce the nitrogen and phosphorus content in the river, and after removing the sediment and the water surface algae and carrying out aeration reoxygenation, how to reduce the content of nutritive salt in the water becomes the final step of river treatment. As shown in figure 2, the invention adopts the technical scheme that a water retaining weir 5 is arranged in the center of a river channel, biological nutrition removing ponds are arranged on two sides of the river channel, a fish pond 7 and an aquatic plant pond 8 are separated by a mesh screen 6 through which water flow can pass, wherein various eating fishes such as silver carps, bighead carps, grass carps, breams, carps and the like are put in the fish pond, and the aquatic algae fished in the step (2) can be put in the pond for eating by the fishes, wherein the stocking proportion is (silver carps + bighead carps): (grass carp + bream): carp: 10:30: 10. And (3) planting allium fistulosum, wild rice stem and golden fish algae in the aquatic plant pool in a planting ratio of 15:10: 2. Has better effect of removing nitrogen and phosphorus elements.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (1)
1. A river regulation and purification method comprises the following steps:
(1) river channel sludge treatment
The river water body purification structure adopts a conical structure, and comprises a sand interception part arranged in a river channel and a sedimentation tank arranged beside the river channel, wherein the sand interception part comprises a conical part with the front end positioned below the water surface, sedimentation surfaces are formed on two sides of the conical part, and the sedimentation tank is arranged on the shore to clean deposited sediments;
(2) river surface aquatic algae treatment
The river surface intercepting structure is adopted to treat aquatic algae on the river surface, the river surface intercepting structure comprises two turntables arranged on two sides of a river, a cable bypasses the two turntables and stretches across the river surface, plastic floating balls at certain intervals are tied on the cable, the floating balls float on the river surface, the aquatic algae are accumulated on the cable through the intercepting action of the floating balls, the turntables rotate, and the floating balls and the aquatic algae accumulated on the floating balls are sequentially pulled to the sides of the river and cleaned;
the river surface interception structure and the water body purification structure in front are sequentially arranged at intervals;
(3) artificial aeration
After removing sediments in a river channel and aquatic algae, reoxygenating river water in an artificial aeration mode, specifically, adopting 10KW aeration equipment, connecting gas into an aeration pipe in the river through a gas pump through a gas inlet pipe, and operating the aeration equipment for 8-10 hours every day;
(4) treatment for removing nutrition
A water retaining weir is arranged in the center of the river channel, biological nutrition removing ponds are arranged on two sides of the river channel, a fish pond and an aquatic plant pond are separated by a mesh screen through which water can pass, river water is retained by the water retaining weir and sequentially flows through the fish pond and the aquatic plant pond, various feeding fishes such as silver carps, bighead carps, grass carps, breams and carps are put in the fish pond, and the aquatic algae fished in the step (2) is put in the fish pond for eating, wherein the stocking proportion is (silver carps + bighead carps): (grass carp + bream): carp is 10:30: 10; and (3) planting allium fistulosum, wild rice stem and golden fish algae in the aquatic plant pool in a planting ratio of 15:10: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910439495.0A CN110092546B (en) | 2019-05-24 | 2019-05-24 | River channel treatment and purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910439495.0A CN110092546B (en) | 2019-05-24 | 2019-05-24 | River channel treatment and purification method |
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| Publication Number | Publication Date |
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| CN110092546A CN110092546A (en) | 2019-08-06 |
| CN110092546B true CN110092546B (en) | 2020-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910439495.0A Expired - Fee Related CN110092546B (en) | 2019-05-24 | 2019-05-24 | River channel treatment and purification method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372099A (en) * | 2019-08-09 | 2019-10-25 | 武汉中科水生环境工程股份有限公司 | A kind of clear flotation bed |
| CN113562848B (en) * | 2021-07-29 | 2022-12-23 | 中冶华天工程技术有限公司 | Micro-ecosystem construction method applied to urban hard riverway |
| CN116427373B (en) * | 2023-04-14 | 2023-09-19 | 江苏中复润城生态环境有限公司 | Intelligent purification system of river course lake wetland |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432107A (en) * | 2011-08-19 | 2012-05-02 | 上海水平衡环境科技发展有限公司 | Biological integrated purification process for governing black and odorous river channels |
| CN109607978A (en) * | 2019-01-23 | 2019-04-12 | 侯萍 | A kind of processing method for river water pollution |
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2019
- 2019-05-24 CN CN201910439495.0A patent/CN110092546B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432107A (en) * | 2011-08-19 | 2012-05-02 | 上海水平衡环境科技发展有限公司 | Biological integrated purification process for governing black and odorous river channels |
| CN109607978A (en) * | 2019-01-23 | 2019-04-12 | 侯萍 | A kind of processing method for river water pollution |
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| CN110092546A (en) | 2019-08-06 |
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