CN112321086A - Method for restoring water body pollution by multiple aquatic plants - Google Patents
Method for restoring water body pollution by multiple aquatic plants Download PDFInfo
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- CN112321086A CN112321086A CN202011211194.1A CN202011211194A CN112321086A CN 112321086 A CN112321086 A CN 112321086A CN 202011211194 A CN202011211194 A CN 202011211194A CN 112321086 A CN112321086 A CN 112321086A
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/008—Mobile apparatus and plants, e.g. mounted on a vehicle
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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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
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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
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
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Abstract
The invention discloses a method for restoring water body pollution by multiple aquatic plants, which comprises the steps of arranging a physical fence at the upstream position of a polluted water body to intercept floaters with larger volume; artificial floating islands are arranged on the polluted water body at intervals, and the artificial floating islands account for about 10% of the total area of the polluted water body; laying a submerged plant repairing layer at the bottom of the polluted water body; the aquatic plants are maintained and managed regularly, and heavy metal ions and nutrient salts in the polluted water body are absorbed by combining a plurality of aquatic plants of a three-dimensional distribution physical fence, submerged plants, floating plants and an artificial floating island. The invention improves the absorption of nutritive salt and copper ions in the polluted water body by the multi-aquatic plant plants, and is matched with the timed harvest of the plants, thereby improving the purification speed of the polluted water body, and having simple operation and low cost.
Description
Technical Field
The invention relates to the technical field of water pollution treatment, in particular to a method for restoring water pollution by multiple aquatic plants.
Background
The traditional ecological restoration technology is mainly constructed by taking the restoration of in-situ underwater submerged plants as a foundation, the submerged plants are used as the most important ring in food chain restoration, and the method of restoring the original ecology has good effect, low maintenance cost and ecological sustainability, so the technology is widely applied to closed lakes or water bodies subjected to ecological restoration in water-degradable construction at present, but the underwater submerged plants have certain requirements on illumination, water transparency, bottom mud, water depth and the like, and the existing restoration technology has certain limitations on riverways (with the flow rate less than 0.5m/s) for long-term water body flowing, water bodies with large water level amplitude and water depth and lower transparency (with low transparency caused by suspended matters), and the submerged plants can not survive and grow.
Along with the increasing of the ecological restoration strength, the ecological restoration consciousness of human beings on the surrounding water body is continuously strengthened, the original closed lake body restoration technology also goes to a certain stage, and the ecological restoration on the water body with a flowing river channel (the flow velocity is less than 0.5m/s), a water body with a large water level amplitude and a deep water depth and low transparency still stays at the stage of simply improving the water quality and the water transparency in the previous stage, but only the water quality index and the water transparency are improved, and the restoration of a complete ecological system food chain cannot be carried out. At present, in the river course (the flow velocity is less than 0.5m/s) where the background water body flows, dam blocking and water drainage can not be carried out, and the bottom condition can not be found under the condition of deeper water depth, so that the ecological restoration difficulty is high. Partial lake sludge is thick, the water cannot be drained and supplemented due to condition limitation, large-scale water carrying dredging is needed, the workload is large, the cost is high, and the cleared sludge is not locally treated, so that a method for restoring water body pollution by multiple aquatic plants is needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method for restoring water body pollution by using a multi-aquatic plant, which effectively separates neutral pseudo-ginseng polysaccharide from acidic polysaccharide and effectively solves the problems in the background art.
A method for restoring water body pollution by multiple aquatic plants is characterized by comprising the following steps: comprises the following steps
A, a physical fence is arranged at the upstream position of a polluted water body to intercept floaters with large volume;
b, arranging artificial floating islands on the polluted water body at intervals, wherein aeration devices are arranged on the artificial floating islands, and the artificial floating islands account for about 10% of the total area of the polluted water body;
c, laying a submerged plant repairing layer at the bottom of the polluted water body;
d, regularly maintaining and managing the aquatic plants, and absorbing heavy metal ions and nutrient salts in the polluted water body by combining a plurality of aquatic plants of a three-dimensional distribution physical fence, a submerged plant, a floating plant and an artificial floating island.
Furthermore, non-woven fabrics are laid at the bottom of the aquatic plant restoration layer, a ceramic adsorption layer is laid at the upper end of the non-woven fabrics, a layer of planting soil is laid at the upper end of the ceramic adsorption layer, and the submerged plants are planted on the planting soil.
Furthermore, the ecological floating island is provided with a porous ring combined filler, and the aquatic plant varieties are canna, droguella plantaginea, cattail and loosestrife which have good nitrogen and phosphorus removal effects.
Furthermore, floating plants are planted between the two artificial floating islands, and the variety of the floating plants is one or more of water lily, Xinjiang and gorgon fruit.
Furthermore, a planting box of aquatic plant planting matrix is laid at the bottom of the river channel, and the aquatic plants include but are not limited to one or more of golden fish algae, water folium agrimoniae, green chrysanthemum and eyedrops.
Further, the aquatic plant coverage rate is 30-40%.
Advantageous effects
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
1. the method can rapidly purify the water body, construct the habitat of fishes and microorganisms, and enable the whole water system to achieve the effect of water cleaning and beauty, and has the advantages of low energy consumption, easy construction, good effect, convenient and fast maintenance, stable food chain recovery and no secondary pollution.
2. Has great economic benefit and market application prospect. The device adopts a plurality of aquatic plants of a three-dimensional distribution physical fence, submerged plants, floating plants and an artificial floating island to combine to absorb heavy metal ions and nutritive salt in the polluted water body, improves the absorption of the plants to the nutritive salt and copper ions, is matched with the timing harvesting of the plants, improves the purification speed of the polluted water body, and has simple operation and low cost.
Drawings
FIG. 1 is a flow chart of the method for remediating water pollution by the multi-aquatic plant of example 1.
Detailed Description
In order to further understand the technical features of the present invention, the present invention is described in detail with reference to the specific embodiments below. The embodiments are given by way of illustration only and not by way of limitation, and any insubstantial modifications, based on the present disclosure, may be made by those skilled in the art without departing from the scope of the present disclosure.
Example 1
A, a physical fence is arranged at the upstream position of a polluted water body to intercept floaters with large volume;
b, arranging artificial floating islands on the polluted water body at intervals, wherein aeration devices are arranged on the artificial floating islands, and the artificial floating islands account for about 10% of the total area of the polluted water body;
c, laying a submerged plant repairing layer at the bottom of the polluted water body;
d, regularly maintaining and managing the aquatic plants, and absorbing heavy metal ions and nutrient salts in the polluted water body by combining a plurality of aquatic plants of a three-dimensional distribution physical fence, a submerged plant, a floating plant and an artificial floating island.
The bottom of aquatic plant restoration layer is laid the non-woven fabrics, the ceramic adsorption layer has been laid to the non-woven fabrics upper end, and one deck planting soil is laid to ceramic adsorption layer upper end, the submerged plant plants on planting soil.
In another embodiment, the ecological floating island is provided with a porous ring combined filler, and the aquatic plant species are canna, droughhaired bevel herb, typha and loosestrife which have good nitrogen and phosphorus removal effects.
In another embodiment, floating plants are planted between two artificial floating islands, and the floating plants are one or more of water lily, Xinjiang and Gorgon fruit.
In another embodiment, a planting box is laid on the bottom of the river channel, wherein aquatic plants comprise one or more of the combination of goldfish algae, water-bindweed, green chrysanthemum and eyeweed.
In another embodiment the aquatic plant coverage is 30-40%.
The preferable embodiment of the invention is positioned in a swan lake and a lake in a city area, the daily flow is large, the sludge at the bottom is thick, no water inlet and drainage channel is provided, the seasonal water level difference is large, when the embodiment is applied, dredging and drainage are not needed, after the invention is assembled on the shore, fixed-point installation and throwing are manually carried out on a ship, the transparency is improved, submerged plants form a growth module after being assembled and are close to the water surface, the submerged plants also quickly absorb light to grow in a water body with low transparency, and the survival rate of the submerged plants reaches more than 92 percent. An artificial floating island which takes aquatic plants and terrestrial water-loving plants as experimental plants and is combined with an aeration device is constructed in a water body of a swan lake. In pilot studies, the reparative dynamics of swan lakes on overlying water and nutrients in sediments were studied. The results show that after 4 months of combined artificial floating island ecological restoration, the removal rates of TN, NH4+ -N and TP in the water covering the swan lake reach 61.92%, 63.09% and 80.0% respectively, the removal rates of TN and NH4+ -N contents in the sediment reach 23.79% and 37.04% respectively, and the TP content is increased by 43.71%; the difference of the accumulated amount of nitrogen and phosphorus of 5 floating bed plants of the combined artificial floating island is obvious, the absorption rate of the thalictrum odoratum and canna to nitrogen and phosphorus is obviously higher than that of calamus, mint and rice, the absorption rate of the thalictrum odoratum and canna to nitrogen reaches 12.19g/(m2.d) and 7.90g/(m2.d), and the absorption rate to phosphorus reaches 0.81g/(m2.d) and 0.99g/(m2.d) respectively. Canna and thalictrum is the stem leaf > root system to the absorbed dose of nitrogen phosphorus, and wherein canna stem leaf nitrogen, phosphorus absorbed dose are 2.73 times and 1.93 times of root system respectively, and thalictrum is 1.83 times and 1.19 times respectively, can get rid of the nitrogen phosphorus in the water through the harvesting of floating bed system plant aquatic part.
The present invention is described in detail by the examples and comparative examples, but the present invention is not limited to the detailed process, and the specific embodiments are only illustrative and not restrictive, and it should be understood by those skilled in the art that any modification of the present invention, equivalent replacement of each raw material of the product of the present invention, addition of auxiliary components, selection of specific modes, etc. fall within the scope of protection and disclosure of the present invention. Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A method for restoring water body pollution by multiple aquatic plants is characterized by comprising the following steps: comprises the following steps
A, a physical fence is arranged at the upstream position of a polluted water body to intercept floaters with large volume;
b, arranging artificial floating islands on the polluted water body at intervals, wherein aeration devices are arranged on the artificial floating islands, and the artificial floating islands account for about 10% of the total area of the polluted water body;
c, laying a submerged plant repairing layer at the bottom of the polluted water body;
d, regularly maintaining and managing the aquatic plants, and absorbing heavy metal ions and nutrient salts in the polluted water body by combining a plurality of aquatic plants of a three-dimensional distribution physical fence, a submerged plant, a floating plant and an artificial floating island.
2. The method for remediating water pollution by using multiple aquatic plants as claimed in claim 1, wherein the method comprises the following steps: the bottom of aquatic plant restoration layer is laid the non-woven fabrics, the ceramic adsorption layer has been laid to the non-woven fabrics upper end, and one deck planting soil is laid to ceramic adsorption layer upper end, the submerged plant plants on planting soil.
3. The method for remediating water pollution by using multiple aquatic plants as claimed in claim 1, wherein the method comprises the following steps: the ecological floating island is provided with a porous ring combined filler, and the aquatic plant varieties are canna, droughhaired bevel herb, cattail and loosestrife which have good nitrogen and phosphorus removal effects.
4. The method for remediating water pollution by using multiple aquatic plants as claimed in claim 1, wherein the method comprises the following steps: floating plants are planted between two artificial floating islands, and the floating plants are one or more of water lily, Xincai and semen euryales.
5. The method for remediating water pollution by using multiple aquatic plants as claimed in claim 1, wherein the method comprises the following steps: the bottom of the river is paved with a planting box of aquatic plant planting matrix, and the aquatic plants include but are not limited to one or more of golden fish algae, water intrinsic plant, green chrysanthemum and eyeweed.
6. The method for remediating water pollution by using multiple aquatic plants as claimed in claim 7, wherein: the aquatic plant coverage rate is 30-40%.
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| CN202011211194.1A CN112321086A (en) | 2020-11-03 | 2020-11-03 | Method for restoring water body pollution by multiple aquatic plants |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114349285A (en) * | 2022-01-12 | 2022-04-15 | 武汉市秀谷科技有限公司 | Method for restoring water body by using aquatic plants |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279697A (en) * | 2018-12-06 | 2019-01-29 | 南京国能环保工程有限公司 | A kind of method that water plant repairs river water quality |
| CN111439850A (en) * | 2020-05-20 | 2020-07-24 | 上海市园林设计研究总院有限公司 | Ecological restoration method applied to flowing water body or deep water area |
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- 2020-11-03 CN CN202011211194.1A patent/CN112321086A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279697A (en) * | 2018-12-06 | 2019-01-29 | 南京国能环保工程有限公司 | A kind of method that water plant repairs river water quality |
| CN111439850A (en) * | 2020-05-20 | 2020-07-24 | 上海市园林设计研究总院有限公司 | Ecological restoration method applied to flowing water body or deep water area |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114349285A (en) * | 2022-01-12 | 2022-04-15 | 武汉市秀谷科技有限公司 | Method for restoring water body by using aquatic plants |
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Application publication date: 20210205 |