CN113912191A - Water body purification system for water pollution treatment and purification method thereof - Google Patents
Water body purification system for water pollution treatment and purification method thereof Download PDFInfo
- Publication number
- CN113912191A CN113912191A CN202111370592.2A CN202111370592A CN113912191A CN 113912191 A CN113912191 A CN 113912191A CN 202111370592 A CN202111370592 A CN 202111370592A CN 113912191 A CN113912191 A CN 113912191A
- Authority
- CN
- China
- Prior art keywords
- water
- water body
- suspension
- plant
- plants
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 274
- 238000000746 purification Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000003911 water pollution Methods 0.000 title claims abstract description 40
- 239000000725 suspension Substances 0.000 claims abstract description 69
- 238000007667 floating Methods 0.000 claims abstract description 61
- 239000000126 substance Substances 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 235000015097 nutrients Nutrition 0.000 claims abstract description 10
- 230000029553 photosynthesis Effects 0.000 claims abstract description 10
- 238000010672 photosynthesis Methods 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 156
- 239000004575 stone Substances 0.000 claims description 36
- 238000004873 anchoring Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000005067 remediation Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 241000252229 Carassius auratus Species 0.000 claims description 2
- 241000195493 Cryptophyta Species 0.000 claims description 2
- 241000722195 Potamogeton Species 0.000 claims 1
- 241001448533 Rohdea Species 0.000 claims 1
- 241000219784 Sophora Species 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- 208000034699 Vitreous floaters Diseases 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- -1 polyethylene Polymers 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000001963 growth medium Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 235000016709 nutrition Nutrition 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 241000498251 Hydrilla Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 241001107128 Myriophyllum Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 241001113438 Vallisneria Species 0.000 description 2
- 241000543445 Vallisneria spiralis Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000195967 Anthoceros Species 0.000 description 1
- 241000669003 Aspidiotus destructor Species 0.000 description 1
- 241000209441 Ceratophyllum Species 0.000 description 1
- 241000923152 Charophyceae Species 0.000 description 1
- 241000755726 Chlorophytum Species 0.000 description 1
- 241000206751 Chrysophyceae Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000082085 Verticillium <Phyllachorales> Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (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)
- Hydroponics (AREA)
Abstract
The invention provides a water body purification system for water pollution treatment and a purification method thereof, wherein the water body purification system comprises a floating device, a suspension device and at least one type of aquatic plant, wherein the floating device is arranged on the water surface of a target water body and is configured to generate buoyancy larger than the sum of the gravity of the suspension device and the aquatic plant; the suspension device is arranged below the water surface of the target water body, is connected with the floating device and is provided with a cavity capable of placing aquatic plants; the aquatic plants are placed in the cavity and can grow underwater, absorb nutrient substances or harmful substances, perform photosynthesis and release oxygen to the water body so as to play a role in purifying the water environment. The invention can be suitable for the water pollution treatment with slow flow velocity or static flow velocity and less wind waves, and can be applied to water areas with water depth more than 0.5 m; the layout position and the suspension depth can be timely moved and adjusted according to the needs, and the risk of siltation and swampiness does not exist.
Description
Technical Field
The invention relates to the technical field of water body purification, in particular to a water body purification system for water pollution treatment and a water body purification method for water pollution treatment.
Background
The aquatic plants play an important role in improving the water quality of the water body, have low application cost and good effect, are simple and easy to implement, and are widely applied to water pollution treatment projects such as sewage treatment, river ecological restoration and the like. In recent years, with continuous engineering practice and experience summary, application technology of aquatic plants in sewage treatment engineering is mature continuously.
At present, two representative methods for improving water environment by using aquatic plants are available. One is a water bottom planting method, also called ecological wetland method or wet plant belt method, and the other is an aquatic floating bed method, also called ecological floating bed method or artificial floating island method.
The underwater planting method is characterized in that emergent aquatic plants and submerged plants are directly planted in sediment at the bottom of a target water body, the plants absorb nutrient substances or certain harmful substances such as nitrogen, phosphorus and the like in the water body and the sediment at the bottom through roots in the growth process, meanwhile, the plants are subjected to photosynthesis after underwater stems and leaves are irradiated, oxygen is directly released to the water body, and the effects of eliminating pollutants, purifying the water body and maintaining water ecological balance are achieved. The method is mainly suitable for landscape water bodies in urban parks and certain scenic spots, and is suitable for shallow water areas near the shore, still water and running water. But the method has the following defects: the method can only act on shallow water bodies with the water depth of less than 2m or water bodies with bottom materials suitable for planting aquatic plants, but can not be applied to water bodies with the water depth of more than 2m or water bodies with bottom materials unsuitable for planting the aquatic plants and most lake and reservoir water bodies with the silt and swamp prevention risks and forbidden or limited planting of the aquatic plants.
The method is characterized in that a combined mode of a water surface floating device, a water cultivation device and emergent aquatic plants is adopted, emergent aquatic plants and part of terrestrial plants are selected, the plants are planted in the cultivation device on the floating bed in a soilless cultivation mode, the floating bed with the planted plants floats on the water surface, the roots of the plants are in contact with or are immersed in the water body, and the plants absorb nutrient substances such as nitrogen, phosphorus and the like or certain harmful substances in the water body through the roots in the growth process, so that the water body purification effect is achieved. The method is mainly suitable for water bodies such as lakes, reservoirs, barrages and the like with slow or static flow velocity, is not limited by water depth and substrate conditions, and can move and adjust the position in time according to needs. But the method has the following defects: oxygen generated by photosynthesis of plants growing on the water surface is directly released into the atmosphere, and little direct contribution is made to the water body, so that the purification effect is influenced; meanwhile, the floating bed floats on the water surface, has a shading effect and is not beneficial to the construction of a water ecosystem.
In view of the above problems, no effective solution has been proposed. Therefore, there is a need for a purification system that is not limited by the depth of the water and the water quality, and can produce good purification effect.
Disclosure of Invention
The present invention aims to address at least one of the above-mentioned deficiencies of the prior art. For example, one of the objectives of the present invention is to provide a purification system that is not limited by the depth of the water and the substrate, and can produce good purification effect.
In order to achieve the above object, the present invention provides in one aspect a water body purification system for water pollution abatement, comprising a floating device, a suspension device, and at least one aquatic plant, wherein the floating device is disposed on a water surface of a target water body and is configured to be capable of generating a buoyancy force greater than a sum of gravity forces of the suspension device and the aquatic plant; the suspension device is arranged below the water surface of the target water body, is connected with the floating device and is provided with a cavity capable of placing aquatic plants; the aquatic plants are placed in the cavity and can grow underwater, absorb nutrient substances or harmful substances, perform photosynthesis and release oxygen to a target water body so as to play a role in purifying a water environment.
In one exemplary embodiment of the water purification system for water pollution remediation of the present invention, the floatation device may comprise a plurality of floats and an anchoring mechanism, wherein the plurality of floats are connected in series to form a float train; the anchoring mechanism consists of an anchor rope and a plurality of anchoring pieces, the anchoring pieces are respectively arranged on two sides and/or the bottom surface of the target water body, one end of the anchor rope is connected with the anchoring pieces, and the other end of the anchor rope is connected with the floater string, so that the floater string floats on the water surface of the designated area.
In an exemplary embodiment of the water purification system for water pollution treatment of the present invention, in a water area with a water depth of less than 1.5m, the anchor member may be an anchor rod, an anchor pile or an anchor stone, and the anchor rod may be one of a bamboo rod, a wood rod or a cement pile; in a water area with the water depth of more than 1.5m, the anchoring piece can be an anchor stone, and the weight of the anchor stone is more than or equal to 5 kg.
In an exemplary embodiment of the water purifying system for water pollution abatement of the present invention, the anchoring mechanism may further include a plurality of metal rings, the plurality of metal rings are respectively connected to both ends of the float string, and the diameter of the metal rings is greater than that of the float holes.
In an exemplary embodiment of the water purification system for water pollution control of the present invention, the suspension device may include a rope having one end connected to the floating device and the other end connected to the plant cultivation implement, and at least one plant cultivation implement, so that the plants of the water body are suspended and fixed at a designated suspension depth.
In an exemplary embodiment of the water purifying system for water pollution control of the present invention, the suspension device may further include a suspension member having one end connected to the floating device and the other end connected to the rope.
In an exemplary embodiment of the water body purification system for water pollution abatement of the present invention, the plant cultivation implement may be provided therein with a plant fixing member which is located above the roots of the plants and is capable of preventing the plants from floating up or falling off.
In one exemplary embodiment of the water purification system for water pollution remediation of the present invention, the aquatic plant may be a submerged plant, which may include genus chrysophyceae, genus watermifera, genus hydrilla, genus verticillium, genus tape grass, and genus potamogetum.
In another aspect, the present invention provides a water purification method for water pollution treatment, including: at least one kind of aquatic plant is arranged under the water surface of a target water body in a suspension mode, so that the aquatic plant can absorb nutrient substances or harmful substances in the underwater growth process, and oxygen is directly supplied to the target water body through photosynthesis to play a role in purifying the water environment.
In an exemplary embodiment of the water purification method for water pollution control of the present invention, the water purification method may specifically include the steps of:
determining the type, the quantity and the suspension depth of aquatic plants according to the field condition of a target water body, preparing aquatic plant materials, and manufacturing a floating device and a suspension device;
and placing the floating device into a target water body, planting aquatic plants in the suspension device, and connecting the suspension device with the floating device so that the suspension device and the aquatic plants are suspended and fixed at a specified suspension depth together.
Compared with the prior art, the beneficial effects of the invention comprise at least one of the following:
(1) the invention can be suitable for purifying and improving the water environment of water bodies polluted by life and agriculture (nutritional organic pollution) such as lakes, reservoirs, weir ponds and the like with slow or static flow velocity and small wind waves (for example, the wind speed is less than 1.5m/s), and can be applied to water areas with the water depth of more than 0.5 m;
(2) the invention can move and adjust the layout position and the suspension depth in time according to the needs, and remove the suspension in time after the target task is completed, so that the sedimentation and swampiness risks do not exist;
(3) the invention has simple and convenient operation and maintenance, wide material source and can hang various aquatic plants;
(4) the aquatic plants used in the invention are planted without soil, have no culture medium, no energy consumption, can be repeatedly used, and are ecologically safe;
(5) the aquatic plants used in the invention can be made from local materials according to local conditions, and are convenient to control and maintain.
Drawings
The above and other objects and/or features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic structural view of a water purification system of an exemplary embodiment of the water purification system for water pollution abatement of the present invention.
Fig. 2 is a schematic flow chart of a water purification method according to an exemplary embodiment of the water pollution control method of the present invention.
Fig. 3 is a schematic plan view showing the arrangement of the suspension devices under the water surface in the lake reservoir according to an exemplary embodiment of the water body purification method for water pollution control of the present invention.
Description of reference numerals:
1-a buoy string, 2-an anchor rod, 3-an anchor stone, 4-an anchor rope, 5-an iron ring, 6-a hanging basket, 7-a rope, 8-a lifting hook and 9-a submerged plant.
Detailed Description
Hereinafter, a water purification system for water pollution control and a purification method thereof according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments. It should be noted that "upper", "lower", "inner" and "outer" are merely used for convenience of description and to constitute relative orientations or positional relationships, and do not indicate or imply that the components referred to must have the specific orientations or positions.
In order to solve the problem that aquatic plants planted at the bottom are limited by the depth of a water body and bottom materials, and aquatic plants planted on a floating bed on water cannot generate a good purification effect, the invention provides a water body purification system for water pollution treatment on one hand.
In one exemplary embodiment of a water purification system for water pollution remediation of the present invention, a water purification system for water pollution remediation can include a floatation device, a suspension device, and at least one aquatic plant.
Wherein the floatation device is disposed on a surface of the target body of water and is configured to be capable of generating a buoyancy force greater than a sum of gravity forces of the suspension device and the aquatic plant.
The floatation device may include a plurality of floats and an anchoring mechanism. Wherein a plurality of floats are connected in series to form a float string. The anchoring mechanism consists of an anchor rope and a plurality of anchoring pieces, the anchoring pieces are respectively arranged on two sides and/or the bottom surface of the target water body, one end of the anchor rope is connected with the anchoring pieces, and the other end of the anchor rope is connected with the floater string, so that the floater string floats on the water surface of the designated area. For example, the float may be a float ball with a diameter of 10cm or a lane float line with a diameter of about 9cm, or other materials with a certain floating capacity may be used.
In a water area (namely a shallow water area) with the water depth less than 1.5m, the anchoring part can be an anchoring rod, an anchoring pile or anchoring stone, and the anchoring rod can be one of a bamboo rod, a wood rod or a cement pile; in a water area (namely a deep water area) with the water depth of more than 1.5m, the anchoring piece is made of anchor stones, the weight of the anchor stones is more than or equal to 5kg, and the anchoring pieces can be made of concrete or made of stones with proper amount loaded in a large net bag. The anchor stone can be used in any water depth, namely is not limited by the water depth. In flowing or windy bodies of water, the anchorages need to be weighted to prevent drifting, for example, the anchorages weigh 10kg or more.
The anchoring mechanism may also include a plurality of metal rings. The metal rings are respectively connected to two ends of the float string, and the diameter of each metal ring is larger than that of each float hole.
The suspension device is arranged below the water surface of the target water body, is connected with the floating device and is configured with a cavity capable of placing aquatic plants.
The suspension device may include a rope having one end connected to the floatation device and the other end connected to the plant growing implement, and at least one plant growing implement, such that the aquatic plants are suspended and fixed at a specified suspension depth. The hanging depth may be set to 30cm to 150 cm. The plant cultivation device is provided with a cavity for placing aquatic plants, for example, the plant cultivation device can be a hanging basket; the hanging basket can be made of polyethylene or polypropylene plastics, has better light transmittance and water permeability, and the basket body is provided with water permeable holes; the diameter of the basket opening of the hanging basket is about 30cm, the shape of the basket opening is not limited, the hanging basket can be circular or in other shapes, and the depth of the basket is more than 10 cm.
The suspension device may further comprise a suspension member having one end connected to the floatation device and the other end connected to the line. For example, the suspension part can be a lifting hook or a clamp, the hanging basket is hung on the buoy string through the lifting hook, and the distance (distance) between the lifting hook and the lifting hook can be 0.8-1.0 m.
The plant cultivation device can be provided with a plant fixing piece which is positioned above the roots of the plants and can prevent the plants from floating upwards or falling off. For example, the plant growing apparatus may be a basket; the plant mounting can be for setting up the buckle in hanging flower basket inner wall middle part or upper portion, and after the hanging flower basket was put into to aquatic plant, can install the buckle on the hanging flower basket inner wall to prevent that the plant floats or drops. Of course, the plant fixing member can be replaced by a broken stone or a fishing line, or a buckle, a broken stone and a fishing line can be used simultaneously. The broken stone is used for pressing plants in the hanging basket, the particle size of the broken stone is 1-2 cm, and broken tiles and the like can also be used.
The aquatic plant is placed in the cavity and can normally grow under water to perform photosynthesis and release oxygen. The aquatic plant can be submerged plant, and the submerged plant can be selected from Chlorophytum sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp.sp..
In addition, the layout of the floating device in the water body can be designed according to the target water body condition. The depth of the water area for laying the suspension device is more than or equal to 0.5 m. The float strings in the float device can be distributed in parallel, the row spacing of the float strings can be more than 2m, two rows form one group, a channel enough for maintaining the ship is reserved between the groups, and the inter-group spacing is more than or equal to 3 m. When the target water body is a flowing water body or a windy water body, the floating device is arranged along the water and the wind (the annual dominant wind direction), and if the floating device and the windy water body exist at the same time and in different directions, the arrangement along the water is preferred.
The invention also provides a water body purification method for water pollution treatment. In another exemplary embodiment of the present invention, a method of purifying a water body for water pollution remediation includes: at least one kind of aquatic plant is arranged under the water surface of the target water body in a suspension mode, so that the aquatic plant can absorb nutrient substances underwater and directly supply oxygen to the target water body through photosynthesis.
Specifically, the water body purification method specifically comprises the following steps:
(1) determining the type, the quantity and the suspension depth of aquatic plants according to the field condition of a target water body, preparing aquatic plant materials, and manufacturing a floating device and a suspension device;
(2) and placing the floating device into a target water body, planting aquatic plants in the suspension device, and connecting the suspension device with the floating device so that the suspension device and the aquatic plants are suspended and fixed at a specified suspension depth together.
The water body purification method of the invention makes full use of the ecological and biological characteristics of the submerged plants and the natural attributes of purifying the water body and maintaining the ecological balance of the water, and prevents and treats the pollution (nutritional organic pollution) of lakes, reservoirs, weir ponds and the like caused by life and agriculture. The principle of purifying the water environment is that submerged plants suspended under the water surface absorb nutrient substances and other harmful substances in the water body in the growth process, and meanwhile, the whole plants directly supply oxygen to the water body under the water surface under the photosynthesis of the plants, so that the oxygen content of the target water body is increased, and the oxygen in the water body is an extremely important factor for maintaining a water ecological system and degrading and eliminating various pollutants (the nutritional organic pollution consumes dissolved oxygen in the water body to cause the water body to be anoxic); and beneficial micro-ecological environment is formed, pollutants are eliminated in multiple ways, and the purposes of purifying water environment, maintaining water ecological balance or repairing water ecological systems damaged by pollution are achieved.
For a better understanding of the above-described exemplary embodiments of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples.
Example 1
Fig. 1 shows a schematic diagram of a water purification system for water pollution remediation. In fig. 1, the region indicated by symbol a represents the water surface, the region indicated by symbol B represents the water surface, the region indicated by symbol C represents a shallow water region, and the region indicated by symbol D represents a deep water region. As shown in fig. 1, a water body purification system for water pollution treatment consists of a floater string 1, an anchor rod 2, an anchor stone 3, an anchor rope 4, an iron ring 5, a hanging basket 6, a rope 7, a lifting hook 8 and a submerged plant 9.
In a shallow water area (namely, an area C in figure 1), the lower end of the anchor rod 2 needs to be firmly fixed in the substrate; in a deepwater zone (i.e. zone D in fig. 1), an anchor stone 3 is placed on the water bottom. Two ends of the buoy string 1 are respectively connected with an anchor rope 4, and the other ends of the anchor ropes 4 are respectively connected with an anchor rod 2 and an anchor stone 3, so that the buoy string 1 can float on the water surface (namely, an area A in figure 1). The iron rings 5 are made of galvanized thick iron wires, the diameter of each thick iron wire is larger than or equal to 3mm, the iron rings 5 are tied at the two ends of the float string 1, the diameter of each iron wire is larger than that of the float hole, floats at the two ends of the float string are prevented from falling off, and the iron rings are connected with the anchor ropes 4.
The hanging basket 6 is made of polyethylene or polypropylene plastic and has better light transmission and water permeability; the basket body is provided with water permeable holes; the diameter of the basket mouth of the hanging basket is 30cm, and the basket depth is 10 cm.
In addition, the hanging depth of the hanging basket 6 under water is 30-80 cm; the distance (interval) between each lifting hook 8 is 0.8-1.0 m. Each hanging basket is filled with a soilless or other culture medium, the roots of the plants are in the basket, and the stems and leaves of the plants are suspended outside the blue. 2-3 submerged plants are initially planted, 2-3 submerged plants are planted, and the total fresh weight of the planted plants is more than or equal to 100 g/basket, so that the survival rate of the plants is guaranteed.
Fig. 2 shows a schematic structure diagram of a water body purification method for water pollution treatment. As shown in fig. 2, a water body purification method for water pollution abatement may include the steps of:
(1) preparing submerged plant materials according to the site conditions of the target water body, selecting local species, and determining the type and the quantity.
(2) Preparing underwater suspension equipment according to the field condition: thin ropes, hanging baskets or hanging cages, iron lifting hooks or thick iron wires and broken stones; the amount is determined.
(3) Determining the hanging water depth according to the transparency of the target water body, and manufacturing hanging equipment: the thin rope is cut into required length, the upper end is tied with a lifting hook, and the lower end is connected with a hanging basket.
(4) Planting the aquatic plant into the hanging basket, fixing the plant by using a buckle or a fish wire, and pressing the root of the plant by using a small amount of broken stones.
(5) Preparing the water surface floating device material according to the field condition: thick ropes (i.e. anchor lines), floats, iron rings, anchor rods or piles, anchor stones, anchor hooks; the amount is determined.
(6) Manufacturing a floating device: the buoys are connected in series by thick ropes (i.e., anchor ropes) to form a buoy string.
(7) The floater cluster is put into a target water body and fixed by an anchor rod (or an anchor pile, an anchor stone and an anchor hook, or a shore wood pile, a tree pile and a stone pile).
(8) Hanging the hanging basket with the plants on a floater string in the water.
(9) The working quality of each link is checked in the whole process of field implementation, and after the steps are completed, the floater cluster is ensured to float on the water surface, and the suspended aquatic plants are completely submerged below the water surface, do not sink to the water bottom and are in a proper depth capable of receiving sunlight.
Fig. 3 shows a schematic plan layout of the undersea suspension system in the lake reservoir. The region pointed to by the symbol E in fig. 3 represents the lake reservoir water area, the region pointed to by the symbol F represents the lake reservoir shoreline, and the region pointed to by the symbol G represents the floating suspension layout of the float string. As shown in fig. 3, the placement of the floatation device in the body of water may be designed according to the target body of water conditions. The depth of the water area is more than or equal to 0.5 m. The float strings are distributed in parallel, and the distribution density is based on the principle of not influencing illumination and being convenient for maintenance of a boat. The row spacing of the float strings is about 2m, two rows form a group, a channel enough for maintaining the ship is reserved between the groups, and the inter-group spacing is more than or equal to 3 m.
First, the terms in the method of underwater suspension of this example are explained and illustrated (limited to this method only)
(1) Target water body: the underwater suspension method is used for purifying, improving water quality and restoring water ecology operation of lakes, reservoirs, barricades and the like, and can be used for the whole lakes, reservoirs, barricades and the like or local water areas in the lakes, reservoirs, barricades and the like.
(2) Submerged plants (submerged plants): refers to a large aquatic plant whose plant body is located under the water layer and can be grown and fixed. Their roots are sometimes underdeveloped or degraded, and parts of the plant body can absorb water and nutrients, and the aeration tissue is particularly developed, facilitating gas exchange in the absence of air in water. The leaves of these plants are mostly in the form of strips or filaments, such as tape grass, hornwort, watermifoil, hydrilla verticillata, etc.
(3) A floating device: the device is a device floating on the water surface, can be arranged into a linear structure, thereby reducing shading effect to the maximum extent, and has the function of ensuring that submerged plants suspended below the device are suspended in the water and do not sink. Including water surface floating objects, fixed anchoring material devices, and the like.
(4) Hanging the equipment: the device is used for hanging and planting submerged plants and comprises a hook, a rope, a plant planting device and the like.
(5) Hanging the water depth: the depth (cm) of the hanging device hung under the water surface is defined, the specific numerical value is the depth from the water surface to the underwater plant planting object, the depth is determined according to the transparency of a target water body, and the depth is also the depth for ensuring that the plants in the underwater hanging device can receive illumination.
(6) The transparency refers to the degree of transparency of a target water body, and is measured on site by a secchi disk (also called transparent disk) method, the transparent disk and related measurement technical requirements refer to related technical specifications (water quality monitoring specification, aquatic organism survey specification, fishery survey specification and the like), and the measurement unit of the transparency value is centimeter (cm). The transparency of the target water body in the initial preparation stage is the average value of multi-day multi-point multi-time measurement results, and the field measurement time needs to be under a sunny day or no rain condition, about 1 time at 10 am in the daytime and about 1 time at 3 pm in the afternoon. Transparency is also often measured during the practice. The water body with the transparency of more than or equal to 15cm (average value of multiple tests) can adopt the underwater suspension method.
Second, prepare the material description
(1) The submerged plant is selected from more than 2 local species, and can be purchased in the market for self-propagation of seedlings and local purchase.
(2) The rope is selected from nylon rope and fishing line for fishery.
(3) The float can be a fishery float (about 10cm in diameter) or a swimming pool float (about 9cm in diameter). Other materials having a certain floating capacity may also be used.
(4) The anchor rod can be made of bamboo or wood rod, cement pile, anchor stone with weight not less than 5kg (in flowing water body or windy water body, anchor stone needs to be added), concrete, or large net bag filled with proper amount of stone.
(5) The hanging basket is made of polyethylene or polypropylene plastic and has good light transmittance and water permeability, and the basket body is provided with water permeable holes; the diameter of the basket opening of the hanging basket is about 30cm, the shape of the basket opening is not limited, the hanging basket can be circular or in other shapes, and the depth of the basket is more than 10 cm.
(6) The iron lifting hook and the iron ring are made of galvanized coarse iron wires. The diameter of the thick iron wire is more than or equal to 3mm, and the lifting hook needs to have a certain anti-falling function and is convenient to hang and take. The iron rings are tied at two ends of the floater string, the diameter of each iron ring is larger than the diameter of the floater, the floaters at the two ends of the floater string are prevented from falling off, and the iron rings are connected with the anchor ropes.
(7) The function of the buckle or the broken stone and the fishing line is used for fixing the plants in the hanging basket to prevent the plants from floating upwards or falling off. The particle size of the broken stone is 1-2 cm, and broken tiles and the like can also be used.
(8) Working tools and equipment: boats or rubber boats and paddles, brace rods, hook rods, transparent scales, pliers, scissors, compasses (compass), communication equipment, life jackets, life rings, overwater work labor insurance products and labels.
Third, operation details and notes
(1) In the field condition investigation of the initial target water body, besides the transparency and the water depth, the local water condition, the perennial dominant wind direction, the current water quality condition, the submerged plant resources, the pollution source condition, the land and water traffic condition and the like are also known.
(2) Each hanging basket is filled with a soilless or other culture medium, the roots of the plants are in the basket, and the stems and leaves of the plants are suspended outside the blue. 2-3 submerged plants are initially planted, 2-3 submerged plants are planted, and the total fresh weight of the planted plants is more than or equal to 100 g/basket, so that the survival rate of the used plants is ensured. Plants in the hanging basket need to be firmly fixed by buckles or fishing lines, and a proper amount of broken stones are pressed on the roots of the plants, so that the plants are prevented from floating and falling off, and the hanging basket is prevented from sinking (the amount of the broken stones cannot be too much, otherwise, the weight of the broken stones exceeds the buoyancy of the floating device, so that the hanging basket sinks). The hanging basket is hung on the float string through the lifting hook, and the distance (interval) between the lifting hook and the lifting hook is 0.8-1.0 m.
(3) The hanging depth of the hanging basket refers to the depth from the water surface to the basket opening of the hanging basket. The suspension depth of the aquatic plant is actually measured according to the field transparency of the target water body, and the suspension depth is generally 30 cm-80 cm and is not more than 150cm at the deepest by combining the growth habit of the plant and the water quality condition. When the transparency of the target water body is changed greatly, the hanging depth needs to be adjusted in time. If the water body is turbid and the transparency is reduced due to the influence of surface runoff and flood in a flood season, the hanging depth can be properly adjusted, and soil deposited on the surface of the plant and in the hanging basket is timely cleaned by slight shaking, flicking and the like, so that the plant can be ensured to receive illumination and be prevented from sinking.
(4) The material quality of all the materials of the floating suspension device, such as the floater, the hanging basket, the rope and the like, needs to have a certain service life, has certain characteristics of aging resistance, air oxidation resistance, photooxidation resistance, water corrosion resistance, no biotoxicity and the like, and has the characteristics of reusability, recycling, environment friendliness and the like. Can be selected according to the actual conditions on site, market supply conditions, cost and other factors according to local conditions.
(5) The length of the floating device (the floater string) is determined according to the field condition of a target water body, the water level lifting factor is considered in advance, the length is properly selected, and the length is not longer, inconvenient to operate and control and generally less than or equal to 50 m. After the floating device is manufactured, the floating device is put into water, pulled to a preset position by a ship according to layout design, and after the floating device is fixed, hanging devices such as hanging baskets with plants and the like are transported to the position of the floating device by the ship, and the hanging devices are hung on the floating device. Ensuring that the floating device floats on the water surface, and the suspended aquatic plants are completely submerged below the water surface, do not sink to the water bottom and are at a proper depth capable of receiving sunlight.
(6) The layout of the floating device in the water body can be designed according to the condition of the target water body. The depth of the water area is more than or equal to 0.5 m. The float strings are distributed in parallel, and the distribution density is based on the principle of not influencing illumination and being convenient for maintenance of a boat. The row spacing of the float strings is about 2m, two rows form a group, a channel enough for maintaining the ship is reserved between the groups, and the inter-group spacing is more than or equal to 3 m. When the water level change of the target water body is large, the layout needs to be adjusted in time. When the target water body is a flowing water body or a windy water body, the floating device is arranged along the water and the wind (the annual dominant wind direction), and if the floating device and the windy water body exist at the same time and in different directions, the arrangement along the water is preferred. Each set of floatation devices is numbered.
(7) Fixation of the floating device in the water body: the two ends of the anchor rod are fixed by the anchor rod or the anchor stone and the anchor hook, the anchor rod is used for fixing the shallow water area generally, and the anchor stone and the anchor hook are used for fixing the deep water area. And the wood piles, the tree piles, the stone piles and other objects close to the shore can be used for fixing. The lower end of the anchor rod needs to be inserted into the substrate to be firmly fixed, so that the anchor rod is prevented from toppling and slipping out; when the floating device and the anchor stone are connected by the rope, the length of the rope is properly longer than the depth of water at the position of the rope, so that the water level change is met.
(8) The transparency and depth measurement is carried out by a boat or a double rubber boat, a floating device is used for dragging and fixing, carrying and hanging a hanging basket with plants, patrolling and other overwater operations and the like, and operating personnel on the boat need to make safety protection according to the regulations and carry related tools and equipment.
(9) In the implementation process, the floater on the water surface is cleaned in time, sundries hung on the device and the rope are cleaned in time, dead hanging plants are cleaned and updated in time, the plants with excessive growth are cleaned in time, the hanging plants which are lost due to falling off are supplemented in time, the mutual entanglement of floater strings is prevented, and the layout and the period can be adjusted according to the purification requirement.
(10) After the method is adopted to realize that the water quality of the target water body reaches the expected target, the floating device and the plants are recovered in time, the site is cleaned, and the recovered aquatic plants need to be properly treated to be mainly used as seedling resources for recycling, so that the environment pollution is avoided.
(11) Selecting submerged plant reference: goldfish algae (Ceratophyllum L.), Hydranthera (Hydrilla Rich), Myriophyllum (Myriophyllum L.), Vallisneria (Vallisneria), Roche (Charophyceae), and Potomogton pusillus L.
Fourthly, comparison of the characteristics of each method
The underwater suspension method is characterized in that a combined mode of the water surface floating device, the underwater suspension equipment and the submerged plant is adopted, the underwater suspension equipment is basically not limited by the water depth and the substrate condition of a water body, the submerged plant is planted in the underwater suspension equipment, the submerged plant is suspended under the water surface to grow, the ecological and biological characteristics of the submerged plant are fully utilized, and the natural properties of purifying the water body and maintaining the water ecological balance are fully utilized.
Table 1 shows the comprehensive comparison results of the water purification method of the present example and the two water purification methods of the prior art. As can be seen from the comparison results in table 1, the underwater suspension method provided by the present example avoids the disadvantages of the two previous representative methods, can be applied to water areas with water depth exceeding 0.5m, and can also move and adjust the layout position and the suspension depth in time as required, and remove in time after the target task is completed, so that there is no silting and swamping risks.
TABLE 1 comprehensive comparison table of main characteristics of each method
In summary, the beneficial effects of the invention include at least one of the following:
(1) the invention can be suitable for purifying and improving the water environment of water bodies polluted by life and agriculture (nutritional organic pollution) such as lakes, reservoirs, weir ponds and the like with slow or static flow velocity and small wind waves (for example, the wind speed is less than 1.5m/s), and can be applied to water areas with the water depth of more than 0.5 m;
(2) the invention can move and adjust the layout position and the suspension depth in time according to the needs, and remove the suspension in time after the target task is completed, so that the sedimentation and swampiness risks do not exist;
(3) the invention has simple and convenient operation and maintenance, wide material source and can hang various aquatic plants;
(4) the aquatic plants used in the invention are planted without soil, have no culture medium, no energy consumption, can be repeatedly used, and are ecologically safe;
(5) the aquatic plants used in the invention can be made from local materials according to local conditions, and are convenient to control and maintain.
Although the present invention has been described above in connection with the exemplary embodiments and the accompanying drawings, it will be apparent to those of ordinary skill in the art that various modifications may be made to the above-described embodiments without departing from the spirit and scope of the claims.
Claims (10)
1. A water body purification system for water pollution abatement, comprising floatation means, suspension means and at least one aquatic plant, wherein,
the floating device is arranged on the water surface of the target water body and is configured to generate buoyancy larger than the sum of the gravity of the suspension device and the aquatic plant;
the suspension device is arranged below the water surface of the target water body, is connected with the floating device and is provided with a cavity capable of placing aquatic plants;
the aquatic plants are placed in the cavity and can grow underwater, absorb nutrient substances or harmful substances, perform photosynthesis and release oxygen to a target water body so as to play a role in purifying a water environment.
2. The water purification system for water pollution abatement of claim 1, wherein the floatation device comprises a plurality of floats and an anchoring mechanism, wherein the plurality of floats are connected in series to form a float train; the anchoring mechanism consists of an anchor rope and a plurality of anchoring pieces, the anchoring pieces are respectively arranged on two sides and/or the bottom surface of the target water body, one end of the anchor rope is connected with the anchoring pieces, and the other end of the anchor rope is connected with the floater string, so that the floater string floats on the water surface of the designated area.
3. The water purification system for water pollution abatement of claim 2, wherein in water areas with water depths of less than 1.5m, the anchoring member is an anchor rod, an anchor pile or an anchor stone; in a water area with the water depth of more than 1.5m, the anchoring piece is an anchor stone, and the weight of the anchor stone is more than or equal to 5 kg.
4. The water purification system for water pollution abatement of claim 2, wherein the anchoring mechanism further comprises a plurality of metal rings, the plurality of metal rings are respectively connected to two ends of the float string, and the diameter of the metal rings is larger than that of the float holes.
5. The water purification system for water pollution abatement of claim 1, wherein the suspension device comprises a rope and at least one plant growing implement, the rope having one end connected to the floatation device and the other end connected to the plant growing implement, such that the water plants are suspended and fixed at a specified suspension depth.
6. The water purification system for water pollution remediation of claim 5 wherein the suspension means further comprises a suspension member, one end of the suspension member being connected to the floatation means and the other end being connected to the rope.
7. The water body purification system for water pollution treatment according to claim 5, wherein a plant fixing member is provided in the plant cultivation device, the plant fixing member is located above the root of the plant and can prevent the plant from floating up or falling off.
8. The water purification system for water pollution remediation of claim 1 wherein the aquatic plant is a submerged plant, the submerged plant comprising genus Goldfish, Foliumet, Black algae, Rohdea, Sophora and potamogeton.
9. A water purification method for water pollution abatement, comprising: at least one kind of aquatic plant is arranged under the water surface of the target water body in a suspension mode, so that the aquatic plant can absorb nutrient substances or harmful substances in the underwater growth process and directly supply oxygen to the target water body through photosynthesis.
10. The water body purification method for water pollution abatement according to claim 9, wherein the water body purification method specifically comprises the steps of:
determining the type, the quantity and the suspension depth of aquatic plants according to the field condition of a target water body, preparing aquatic plant materials, and manufacturing a floating device and a suspension device;
and placing the floating device into a target water body, planting aquatic plants in the suspension device, and connecting the suspension device with the floating device so that the suspension device and the aquatic plants are suspended and fixed at a specified suspension depth together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111370592.2A CN113912191A (en) | 2021-11-18 | 2021-11-18 | Water body purification system for water pollution treatment and purification method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111370592.2A CN113912191A (en) | 2021-11-18 | 2021-11-18 | Water body purification system for water pollution treatment and purification method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113912191A true CN113912191A (en) | 2022-01-11 |
Family
ID=79247634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111370592.2A Pending CN113912191A (en) | 2021-11-18 | 2021-11-18 | Water body purification system for water pollution treatment and purification method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113912191A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211821A (en) * | 2011-04-20 | 2011-10-12 | 复旦大学 | Ecological jellyfish device for water body treatment |
| CN203513366U (en) * | 2013-10-22 | 2014-04-02 | 上海海洋大学 | Suspended submerged plant planting bed |
| CN103922478A (en) * | 2014-02-24 | 2014-07-16 | 深圳市益水生态科技有限公司 | Method for eutrophication treatment of deepwater of reservoirs |
| CN205999132U (en) * | 2016-08-05 | 2017-03-08 | 林映津 | Submerged plant planting is dived mattress |
| CN107840459A (en) * | 2017-12-19 | 2018-03-27 | 江南大学 | A kind of combination bed system with water ecology repair function |
| CN207369832U (en) * | 2017-09-06 | 2018-05-18 | 天津水运工程勘察设计院 | A kind of submerged plant impending planting device for underwater restoration of the ecosystem |
-
2021
- 2021-11-18 CN CN202111370592.2A patent/CN113912191A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211821A (en) * | 2011-04-20 | 2011-10-12 | 复旦大学 | Ecological jellyfish device for water body treatment |
| CN203513366U (en) * | 2013-10-22 | 2014-04-02 | 上海海洋大学 | Suspended submerged plant planting bed |
| CN103922478A (en) * | 2014-02-24 | 2014-07-16 | 深圳市益水生态科技有限公司 | Method for eutrophication treatment of deepwater of reservoirs |
| CN205999132U (en) * | 2016-08-05 | 2017-03-08 | 林映津 | Submerged plant planting is dived mattress |
| CN207369832U (en) * | 2017-09-06 | 2018-05-18 | 天津水运工程勘察设计院 | A kind of submerged plant impending planting device for underwater restoration of the ecosystem |
| CN107840459A (en) * | 2017-12-19 | 2018-03-27 | 江南大学 | A kind of combination bed system with water ecology repair function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100576997C (en) | Adjustably buoyant enhanced floating island | |
| EP1207750B1 (en) | Aquatic structure and method | |
| JP5345375B2 (en) | How to regenerate a submerged plant, how to cultivate a submerged plant used for it, plant regeneration base, floating island | |
| CN103382056B (en) | A kind of submerged plant fast run-up group device | |
| KR20020096770A (en) | Floating island with Mooring apparatus and Mooring apparatus for variable water level | |
| CN205962337U (en) | Coral reef repair system | |
| US11034415B2 (en) | Permeable concrete vessel for creating floating aquatic habitats | |
| JP2007135429A (en) | Aquatic vegetation constructing method and aquatic vegetation facilities | |
| JP4358833B2 (en) | Planting base | |
| CN101190813A (en) | Soft plant floating bed for protecting bank and purifying water | |
| WO2002064515A1 (en) | Method for biological nutrient control | |
| CN107343452A (en) | One kind is used for lake river course submerged plant planting device | |
| CN211283878U (en) | Automatic ecological chinampa of aquatic plant goes up and down | |
| CN113912191A (en) | Water body purification system for water pollution treatment and purification method thereof | |
| CN110150126A (en) | A kind of plant fixing device adapting to high water level fluctuation | |
| CN210480988U (en) | In-situ ecological restoration device suitable for deep water river and lake water system | |
| CN211141660U (en) | Device for purifying water quality of rivers and lakes by using submerged plants | |
| CN213803132U (en) | Water treatment system convenient to flood | |
| CN210491838U (en) | Multi-ecological-position aquatic plant community construction device | |
| CN211283875U (en) | Novel floating island suitable for submerged plant | |
| CN211394026U (en) | Floating wetland with porous carrier structure | |
| CN211283876U (en) | Ecological floating island | |
| CN211020407U (en) | Ecological submerged bed | |
| CN203392930U (en) | Rapid submerged plant colonization device | |
| CN217535608U (en) | Ecological bed that floats that adapts to river course water level change |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220111 |