CN109607978A - A kind of processing method for river water pollution - Google Patents
A kind of processing method for river water pollution Download PDFInfo
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- CN109607978A CN109607978A CN201910065185.7A CN201910065185A CN109607978A CN 109607978 A CN109607978 A CN 109607978A CN 201910065185 A CN201910065185 A CN 201910065185A CN 109607978 A CN109607978 A CN 109607978A
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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
- 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
- E02B15/10—Devices for removing the material from the surface
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Abstract
The invention discloses a kind of processing methods for river water pollution, the specific steps are as follows: mechanical algae removement: the pollutants such as algae generated using pick-up boat to river surface eutrophication are crushed, are salvaged, and provide route for pick-up boat traveling.A kind of processing method for river water pollution of the present invention, alkaline matter is added when overturning to mud, heavy metal will form silicate under higher pH environment, carbonate, hydroxide slightly solubility sediment, heavy metal can be inhibited to enter water body with solubilised state, it is capable of increasing the precipitation process to heavy metal in river, efficiently mix with the mud after overturning and increases deposition efficiency, flocculation sedimentation is carried out after the completion of heavy metal precipitation, it can effectively be flocculated to the muddiness generated is salvaged, and the alkaline matter that precipitated metal is added neutralizes, flocculation sedimentation is for controlling the endogenous phosphorus load of polluted river, the especially phosphorus release of bed mud in river, there is certain effect, bring better prospect of the application.
Description
Technical field
The present invention relates to the invention of water pollution processing method, improve water pollution process field traditionally, in particular to one
Kind is used for the processing method of river water pollution.
Background technique
The range and transmission capacity of water resource pollution in river due to river, it is easy to regional water environment be caused to dislike
Change, in turn result in the Arrested Development of social economy, brings long-term negative effect to local investment environment, water pollution can be to me
Living environment cause directly to endanger, insulting health, a kind of water medium extremely wide as spread scope, water pollution is also
The relay that can cause a variety of communicable diseases, it is also very big for the harm at water source, water quality, therefore, the water pollution in river for
The economic development in China and Social Ecology improvement suffer from very crucial effect, have properly renovated river water pollution problems not
It is only capable of promoting the urbanization process in China, moreover it is possible to play huge facilitation to the improvement of China's mode of economic development；
The processing method of existing river water pollution there are limitation, is unable to reach effectively the processing of heavy metal in river
Processing, rubbish are easy to cause mud intrinsic heavy metal to enter water body with solubilised state when salvaging, aggravate water pollution, for this purpose, we
It is proposed a kind of processing method for river water pollution.
Summary of the invention
The main purpose of the present invention is to provide a kind of processing methods for river water pollution, can effectively solve background
The problems in technology.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of processing method for river water pollution, the specific steps are as follows:
(1) mechanical algae removement: the pollutants such as algae generated using pick-up boat to river surface eutrophication are crushed, are salvaged,
Route is provided for pick-up boat traveling；
(2) river pollutants salvaging and heavy metal precipitation: after the completion of removing algae in step (1), using pick-up boat to river bed
The pollutants such as rubbish are salvaged, and are overturn to mud, add alkaline matter into river water in switching process, by mud
PH control in 7-8, heavy metal can be inhibited to enter water body with solubilised state；
(3) it flocculation sedimentation: adds in the river water in step (2) after heavy metal precipitation and is polluted in coagulant removal water body
Object, to reach improvement water quality；
(4) river surface is cleared up: in step (3) after the completion of flocculation sedimentation, using pick-up boat to river surface because salvaging the rubbish generated
The pollutants such as rubbish are cleared up, and river water light transmission 1-1.5m is kept；
(5) watercourse aeration: it is passed through aerator in the river in step (4) after river surface cleaning, from atmosphere into water body
Diffusion dissolution oxygen, water body watercourse aeration make river channel ecology system be restored to normal condition；
(6) animals and plants are introduced into: planting plants, introduction aquatic animal in the river in step (5) after the completion of watercourse aeration,
A variety of water plants have good removal effect to phosphorus and nitrogen, introduce the indigenous type to have disappeared again, make biological species
Group's diversification.
Preferably, strainer is installed on pick-up boat when mechanical algae removement in the step (1), to the bulky grain rubbish of river surface
It is collected, strainer mesh number is 2-4 mesh.
Preferably, step (2) the neutral and alkali substance includes one of lime, calcium silicate slag or steel slag or a variety of,
Heavy metal will form silicate, carbonate, hydroxide slightly solubility sediment under higher pH environment, but control alkalinity
The dosage of substance.
Preferably, in the step (3) coagulant include ferrous sulfate, it is frerrous chloride, aluminum sulfate, aluminium chloride, bright
One of alum, polyacrylamide and Sodium Polyacrylate are a variety of, flocculation sedimentation 3-4h.
Preferably, the dosage of each component is respectively ferrous sulfate 80-100mg/L, chlorination in coagulant in the step (3)
Ferrous 50-70mg/L, aluminum sulfate 50-100mg/L, aluminium chloride 30-60mg/L, alum 100-150mg/L, polyacrylamide
100-120mg/L and Sodium Polyacrylate 120-140mg/L, the above are dosages when general turbidity, and water is more muddy, coagulant
Dosage should be bigger, but to control dosage of PAC.
Preferably, filter cloth is installed on pick-up boat when river surface is cleared up in the step (4), to the little particle rubbish of river surface
It is collected, the mesh number of filter cloth is 30-35 mesh.
Preferably, watercourse aeration working principle in the step (5) are as follows: between the dissolved oxygen and black sordes matter of water body
Redox reaction has occurred, black sordes matter is H2S, FeS has the substance of reproducibility.
Preferably, water plant includes: duckweed, Eichhornia crassipes, Azolla imbricata, Chinese scholartree Ye Ping, hornwort, fringe in the step (6)
Flower watermifoil, potamogeton malaianus, water caltrop, eel grass and water quality grass, can effectively absorb nitrogen, the phosphorus in water body, reduce the richness of water body
Nutrient laden is horizontal.
Compared with prior art, the invention has the following beneficial effects:
1, alkaline matter is added when overturning to mud, heavy metal will form silicate, carbon under higher pH environment
Hydrochlorate, hydroxide slightly solubility sediment, can inhibit heavy metal to enter water body with solubilised state, be capable of increasing to a huge sum of money in river
The precipitation process of category carries out efficiently mixing increase deposition efficiency with the mud after overturning, while controlling alkaline matter dosage and keeping away
Exempt to cause secondary pollution；
2, flocculation sedimentation is carried out after the completion of heavy metal precipitation, can effectively be flocculated to the muddiness generated is salvaged, and
The alkaline matter that precipitated metal is added neutralizes, and flocculation sedimentation is for controlling the endogenous phosphorus load of polluted river, especially river
The phosphorus release for flowing bed mud, there is certain effect.
Detailed description of the invention
Fig. 1 is a kind of method flow diagram of the processing method for river water pollution of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
(1) mechanical algae removement: the pollutants such as algae generated using pick-up boat to river surface eutrophication are crushed, are salvaged,
Route is provided for pick-up boat traveling, and when mechanical algae removement is equipped with strainer on pick-up boat, receives to the bulky grain rubbish of river surface
Collection, strainer mesh number are 2 mesh；
(2) river pollutants salvaging and heavy metal precipitation: after the completion of removing algae in step (1), using pick-up boat to river bed
The pollutants such as rubbish are salvaged, and are overturn to mud, add alkaline matter into river water in switching process, by mud
PH control 7, heavy metal can be inhibited to enter water body with solubilised state, alkaline matter includes lime, calcium silicate slag or steel slag
One of or it is a variety of, heavy metal will form silicate, carbonate, hydroxide slightly solubility sediment under higher pH environment,
But to control the dosage of alkaline matter；
(3) it flocculation sedimentation: adds in the river water in step (2) after heavy metal precipitation and is polluted in coagulant removal water body
Object, to reach improvement water quality, coagulant includes ferrous sulfate, frerrous chloride, aluminum sulfate, aluminium chloride, alum, polyacrylamide
One of amine and Sodium Polyacrylate are a variety of, flocculation sedimentation 3h, and the dosage of each component is respectively ferrous sulfate in coagulant
80mg/L, frerrous chloride 50mg/L, aluminum sulfate 50mg/L, aluminium chloride 30mg/L, alum 100mg/L, polyacrylamide
100mg/L and Sodium Polyacrylate 120mg/L, the above are dosages when general turbidity, and water is more muddy, and the dosage of coagulant should be cured
Greatly, but dosage of PAC is controlled；
(4) river surface is cleared up: in step (3) after the completion of flocculation sedimentation, using pick-up boat to river surface because salvaging the rubbish generated
The pollutants such as rubbish are cleared up, and keep river water light transmission 1m, river surface is equipped with filter cloth when clearing up on pick-up boat, to small of river surface
Grain rubbish is collected, and the mesh number of filter cloth is 30 mesh；
(5) watercourse aeration: it is passed through aerator in the river in step (4) after river surface cleaning, from atmosphere into water body
Diffusion dissolution oxygen, water body watercourse aeration make river channel ecology system be restored to normal condition, watercourse aeration working principle are as follows: enter water
Redox reaction has occurred between the dissolved oxygen of body and black sordes matter, black sordes matter is H2S, FeS has the substance of reproducibility；
(6) animals and plants are introduced into: planting plants, introduction aquatic animal in the river in step (5) after the completion of watercourse aeration,
A variety of water plants have good removal effect to phosphorus and nitrogen, introduce the indigenous type to have disappeared again, make biological species
Group diversification, water plant include: duckweed, Eichhornia crassipes, Azolla imbricata, Chinese scholartree Ye Ping, hornwort, Haloragidaceae Myriophyllum spicatum, potamogeton malaianus,
Water caltrop, eel grass and water quality grass, can effectively absorb nitrogen, the phosphorus in water body, reduce the eutrophication of water body.
Embodiment 2
(1) mechanical algae removement: the pollutants such as algae generated using pick-up boat to river surface eutrophication are crushed, are salvaged,
Route is provided for pick-up boat traveling, and when mechanical algae removement is equipped with strainer on pick-up boat, receives to the bulky grain rubbish of river surface
Collection, strainer mesh number are 3 mesh；
(2) river pollutants salvaging and heavy metal precipitation: after the completion of removing algae in step (1), using pick-up boat to river bed
The pollutants such as rubbish are salvaged, and are overturn to mud, add alkaline matter into river water in switching process, by mud
PH control 7, heavy metal can be inhibited to enter water body with solubilised state, alkaline matter includes lime, calcium silicate slag or steel slag
One of or it is a variety of, heavy metal will form silicate, carbonate, hydroxide slightly solubility sediment under higher pH environment,
But to control the dosage of alkaline matter；
(3) it flocculation sedimentation: adds in the river water in step (2) after heavy metal precipitation and is polluted in coagulant removal water body
Object, to reach improvement water quality, coagulant includes ferrous sulfate, frerrous chloride, aluminum sulfate, aluminium chloride, alum, polyacrylamide
One of amine and Sodium Polyacrylate are a variety of, flocculation sedimentation 3.5h, and the dosage of each component is respectively ferrous sulfate in coagulant
90mg/L, frerrous chloride 60mg/L, aluminum sulfate 75mg/L, aluminium chloride 45mg/L, alum 125mg/L, polyacrylamide
110mg/L and Sodium Polyacrylate 130mg/L, the above are dosages when general turbidity, and water is more muddy, and the dosage of coagulant should be cured
Greatly, but dosage of PAC is controlled；
(4) river surface is cleared up: in step (3) after the completion of flocculation sedimentation, using pick-up boat to river surface because salvaging the rubbish generated
The pollutants such as rubbish are cleared up, and keep river water light transmission 1.3m, river surface is equipped with filter cloth when clearing up on pick-up boat, to the small of river surface
Particle rubbish is collected, and the mesh number of filter cloth is 32 mesh；
(5) watercourse aeration: it is passed through aerator in the river in step (4) after river surface cleaning, from atmosphere into water body
Diffusion dissolution oxygen, water body watercourse aeration make river channel ecology system be restored to normal condition, watercourse aeration working principle are as follows: enter water
Redox reaction has occurred between the dissolved oxygen of body and black sordes matter, black sordes matter is H2S, FeS has the substance of reproducibility；
(6) animals and plants are introduced into: planting plants, introduction aquatic animal in the river in step (5) after the completion of watercourse aeration,
A variety of water plants have good removal effect to phosphorus and nitrogen, introduce the indigenous type to have disappeared again, make biological species
Group diversification, water plant include: duckweed, Eichhornia crassipes, Azolla imbricata, Chinese scholartree Ye Ping, hornwort, Haloragidaceae Myriophyllum spicatum, potamogeton malaianus,
Water caltrop, eel grass and water quality grass, can effectively absorb nitrogen, the phosphorus in water body, reduce the eutrophication of water body.
Embodiment 3
(1) mechanical algae removement: the pollutants such as algae generated using pick-up boat to river surface eutrophication are crushed, are salvaged,
Route is provided for pick-up boat traveling, and when mechanical algae removement is equipped with strainer on pick-up boat, receives to the bulky grain rubbish of river surface
Collection, strainer mesh number are 4 mesh；
(2) river pollutants salvaging and heavy metal precipitation: after the completion of removing algae in step (1), using pick-up boat to river bed
The pollutants such as rubbish are salvaged, and are overturn to mud, add alkaline matter into river water in switching process, by mud
PH control 8, heavy metal can be inhibited to enter water body with solubilised state, alkaline matter includes lime, calcium silicate slag or steel slag
One of or it is a variety of, heavy metal will form silicate, carbonate, hydroxide slightly solubility sediment under higher pH environment,
But to control the dosage of alkaline matter；
(3) it flocculation sedimentation: adds in the river water in step (2) after heavy metal precipitation and is polluted in coagulant removal water body
Object, to reach improvement water quality, coagulant includes ferrous sulfate, frerrous chloride, aluminum sulfate, aluminium chloride, alum, polyacrylamide
One of amine and Sodium Polyacrylate are a variety of, flocculation sedimentation 4h, and the dosage of each component is respectively ferrous sulfate in coagulant
100mg/L, frerrous chloride 70mg/L, aluminum sulfate 100mg/L, aluminium chloride 60mg/L, alum 150mg/L, polyacrylamide
120mg/L and Sodium Polyacrylate 140mg/L, the above are dosages when general turbidity, and water is more muddy, and the dosage of coagulant should be cured
Greatly, but dosage of PAC is controlled；
(4) river surface is cleared up: in step (3) after the completion of flocculation sedimentation, using pick-up boat to river surface because salvaging the rubbish generated
The pollutants such as rubbish are cleared up, and keep river water light transmission 1.5m, river surface is equipped with filter cloth when clearing up on pick-up boat, to the small of river surface
Particle rubbish is collected, and the mesh number of filter cloth is 35 mesh；
(5) watercourse aeration: it is passed through aerator in the river in step (4) after river surface cleaning, from atmosphere into water body
Diffusion dissolution oxygen, water body watercourse aeration make river channel ecology system be restored to normal condition, watercourse aeration working principle are as follows: enter water
Redox reaction has occurred between the dissolved oxygen of body and black sordes matter, black sordes matter is H2S, FeS has the substance of reproducibility；
(6) animals and plants are introduced into: planting plants, introduction aquatic animal in the river in step (5) after the completion of watercourse aeration,
A variety of water plants have good removal effect to phosphorus and nitrogen, introduce the indigenous type to have disappeared again, make biological species
Group diversification, water plant include: duckweed, Eichhornia crassipes, Azolla imbricata, Chinese scholartree Ye Ping, hornwort, Haloragidaceae Myriophyllum spicatum, potamogeton malaianus,
Water caltrop, eel grass and water quality grass, can effectively absorb nitrogen, the phosphorus in water body, reduce the eutrophication of water body.
Table 1 be in the processing method of the river embodiment 1-3 water pollution each data to when being examined to river course environment
The data measured, comparing result such as following table (are tested three sections with river):
Three groups of embodiments known to 1 experimental data of table are handled river water pollution, and wherein embodiment 3 is optimal
Selection, the processing method of river water pollution provided by the invention adds alkaline matter when overturning to mud, higher
Heavy metal will form silicate, carbonate, hydroxide slightly solubility sediment under pH environment, heavy metal can be inhibited with solubilised state
Into water body, it is capable of increasing the precipitation process to heavy metal in river, carries out efficiently mixing increase precipitating with the mud after overturning
Efficiency, while controlling alkaline matter dosage and avoiding secondary pollution, flocculation sedimentation, energy are carried out after the completion of heavy metal precipitation
It is enough effectively to be flocculated to the muddiness for salvaging generation, and the alkaline matter that precipitated metal is added neutralizes, flocculation sedimentation pair
In the phosphorus release of the control endogenous phosphorus load of polluted river, especially bed mud in river, there is certain effect.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of processing method for river water pollution, which is characterized in that specific step is as follows:
(1) mechanical algae removement: the pollutants such as algae generated using pick-up boat to river surface eutrophication are crushed, are salvaged, to beat
Shipping agency is fished out into offer route；
(2) river pollutants salvaging and heavy metal precipitation: after the completion of removing algae in step (1), using pick-up boat to river bed rubbish
Equal pollutants are salvaged, and are overturn to mud, alkaline matter are added into river water in switching process, by the pH of mud
Control can inhibit heavy metal to enter water body with solubilised state in 7-8；
(3) flocculation sedimentation: adding pollutant in coagulant removal water body in the river water in step (2) after heavy metal precipitation, with
Reach improvement water quality；
(4) river surface is cleared up: in step (3) after the completion of flocculation sedimentation, using pick-up boat to river surface because salvaging the rubbish etc. generated
Pollutant is cleared up, and river water light transmission 1-1.5m is kept；
(5) watercourse aeration: it is passed through aerator in the river in step (4) after river surface cleaning, is spread from atmosphere into water body
Dissolved oxygen, water body watercourse aeration make river channel ecology system be restored to normal condition；
(6) animals and plants are introduced into: planting plants, introduction aquatic animal in the river in step (5) after the completion of watercourse aeration, it is a variety of
Water plant has good removal effect to phosphorus and nitrogen, introduces the indigenous type to have disappeared again, keeps biological group more
Sample.
2. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (1)
Strainer is installed on pick-up boat when middle mechanical algae removement, the bulky grain rubbish of river surface is collected, strainer mesh number is 2-4 mesh.
3. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (2)
Neutral and alkali substance includes one of lime, calcium silicate slag or steel slag or a variety of, and heavy metal will form under higher pH environment
Silicate, carbonate, hydroxide slightly solubility sediment, but to control the dosage of alkaline matter.
4. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (3)
Middle coagulant includes in ferrous sulfate, frerrous chloride, aluminum sulfate, aluminium chloride, alum, polyacrylamide and Sodium Polyacrylate
One or more, flocculation sedimentation 3-4h.
5. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (3)
The dosage of each component is respectively ferrous sulfate 80-100mg/L, frerrous chloride 50-70mg/L, aluminum sulfate 50- in middle coagulant
100mg/L, aluminium chloride 30-60mg/L, alum 100-150mg/L, polyacrylamide 100-120mg/L and Sodium Polyacrylate
120-140mg/L, the above are dosages when general turbidity, and water is more muddy, and the dosage of coagulant should be bigger, but to control
Dosage of PAC.
6. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (4)
Middle river surface is equipped with filter cloth when clearing up on pick-up boat, is collected to the little particle rubbish of river surface, and the mesh number of filter cloth is 30-35
Mesh.
7. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (5)
Middle watercourse aeration working principle are as follows: redox reaction, black sordes has occurred between the dissolved oxygen and black sordes matter of water body
Matter is H2S, FeS has the substance of reproducibility.
8. a kind of processing method for river water pollution according to claim 1, which is characterized in that the step (6)
Middle water plant includes: duckweed, Eichhornia crassipes, Azolla imbricata, Chinese scholartree Ye Ping, hornwort, Haloragidaceae Myriophyllum spicatum, potamogeton malaianus, water caltrop, hardship
Grass and water quality grass, can effectively absorb nitrogen, the phosphorus in water body, reduce the eutrophication of water body.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092546A (en) * | 2019-05-24 | 2019-08-06 | 济南市莱芜雪野水库管理处 | A kind of river regulation purification method |
| WO2022207006A3 (en) * | 2022-04-07 | 2023-01-26 | China Urban Construction Design & Research Institute Co., Ltd. | Waterscape device capable of removing nitrogen, phosphorus and algae simultaneously and the application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110092546B (en) * | 2019-05-24 | 2020-03-03 | 济南市莱芜雪野水库管理处 | River channel treatment and purification method |
| WO2022207006A3 (en) * | 2022-04-07 | 2023-01-26 | China Urban Construction Design & Research Institute Co., Ltd. | Waterscape device capable of removing nitrogen, phosphorus and algae simultaneously and the application thereof |
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Application publication date: 20190412 |