CN110745952A - Biological and ecological integrated aeration floating island device - Google Patents
Biological and ecological integrated aeration floating island device Download PDFInfo
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- CN110745952A CN110745952A CN201911129562.5A CN201911129562A CN110745952A CN 110745952 A CN110745952 A CN 110745952A CN 201911129562 A CN201911129562 A CN 201911129562A CN 110745952 A CN110745952 A CN 110745952A
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a biological and ecological integrated aeration floating island device which comprises an aeration plant area and a biological filler area, wherein the biological filler area is positioned on one side of the aeration plant area; the aeration plant area comprises a plant module component and a membrane aeration component positioned below the plant module component; the biological filler area comprises a floating device and a biological filler module which are formed by splicing field planting floating plates, and the field planting floating plates are arranged above the biological filler module. An aeration plant area combined by the plant module component and the membrane aeration component is utilized to realize gradient utilization of oxygen and effective purification of regional water.
Description
Technical Field
The invention relates to a biological and ecological integrated aeration floating island device, which belongs to the technical field of ecological comprehensive treatment engineering, can be applied to the fields of urban black and odorous water body treatment and water environment comprehensive treatment, and has better sewage treatment effect on sewage receiving pits and closed water areas.
Background
The surface water pollution is a global environmental problem, and with the continuous progress of urban construction, particularly the problem of urban river and lake water pollution is more serious, so that research and application of an efficient water environment treatment technology are urgently needed. The ecological floating island technology is composed of plants, floating carriers, a matrix and the like, is widely used as an aqueous ecological management technology with good plant landscape effect, low cost and easy maintenance, but the traditional ecological floating island has poor treatment effect on heavy eutrophic polluted water body, mainly depends on plant root system absorption to remove pollutants, and has low efficiency. Therefore, the research on enhancing the water purification capacity of the ecological floating island technology becomes a hotspot and difficulty in the fields of water pollution treatment technology and ecological restoration engineering. At present, materials such as PVC pipes, stainless steel pipes, wood, moso bamboo and special expanded polystyrene are mostly adopted as frame bodies when the traditional ecological floating island is constructed, ceramsite, vermiculite, expanded perlite, porous ceramic, pumice and the like are used as carriers or substrates, the types of combinations are different, but the traditional ecological floating island is limited to simple loose combination, the stability of the system is poor, the overwater space is emphasized to be utilized, the construction of an underwater system is not much, the underwater space is not utilized sufficiently, and the water purifying capacity is not strong.
Disclosure of Invention
The invention aims to provide a biological and ecological integrated aeration floating island device capable of effectively purifying regional water.
In order to solve the technical problems, the invention adopts the following technical scheme: a biological and ecological integrated aeration floating island device comprises an aeration plant area and a biological filler area, wherein the biological filler area is positioned at one side of the aeration plant area; the aeration plant area comprises a plant module component and a membrane aeration component positioned below the plant module component; the biological filler area comprises a floating device and a biological filler module which are formed by splicing field planting floating plates, and the field planting floating plates are arranged above the biological filler module.
In the aforementioned biological and ecological integrated aeration floating island device, the plant module component comprises a plant field planting net device, a lining screen, emergent aquatic plants and a substrate, wherein the emergent aquatic plants and the substrate are arranged in the lining screen, the lining screen is arranged in the field planting net device, stem leaves of the emergent aquatic plants are positioned above the water surface, and root systems and rhizome systems of the emergent aquatic plants are positioned below the water surface. The root system of the emergent aquatic plant and the substrate arranged in the lining screen can be used as an attachment carrier of the microbial film; the lining screen mesh arranged in the field planting net device can ensure that the root system of the emergent aquatic plant can be successfully germinated, and can be used for preventing the matrix from leaking. Emergent aquatic plants are placed in the lining screen mesh of the plant module assembly, so that the biological diversity of a water area where the floating island device is placed can be enriched, a three-dimensional food chain system is formed in the water area, and the synergistic effect between the module aeration assembly and the plant module assembly is realized.
In the aforementioned bio-ecological integrated aeration floating island device, the biological filler module comprises a medium carrier frame and a fiber medium disposed on the medium carrier frame; the medium carrier frame body is made of light high polymer material, and the strength meets the load requirement; the fiber medium is a criss-cross woven fabric, and the top of the fiber medium is a mixed woven fabric and is hung on the medium carrier frame. The problem that the central rope of the traditional suspension type fiber medium is separated can be solved by adopting the fiber medium with the top being mixed and woven.
In the above biological and ecological integrated aeration floating island device, the floating planting device is formed by splicing a plurality of fixed planting floating plates which can float on the water surface; the floating planting device is in a rectangular disc structure or a square disc structure or a circular disc structure. The floating planting device can float on the water surface and can contain small plants. The structural shape of the floating planting device can be freely spliced according to actual engineering requirements, such as a rectangular disc-shaped structure, a square disc-shaped structure or a circular disc-shaped structure. The connecting piece passes through the holes arranged on the side walls of the field planting floating plates to connect two adjacent field planting floating plates, and the connecting piece can be a steel wire or a waterproof rope.
In the aforementioned bio-ecological integrated aeration floating island device, the membrane aeration component includes a hollow fiber oxygen permeable membrane, a microbial membrane is attached to the surface of the membrane aeration component, and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration component. The gas generated by the membrane aeration component can escape from the water surface from bottom to top, and the gas can be fully utilized by the microbial film attached to the emergent aquatic plant root system and the substrate in the process of escaping from bottom to top, so that the growth of the emergent aquatic plant root system is promoted, and the metabolism of the microbial film attached to the emergent aquatic plant root system is promoted. Because the oxygen in the microbial film and the pollutants in the water are subjected to reverse mass transfer, the pollutants in the water enter the microbial film from outside to inside and are decomposed by the microorganisms forming the microbial film, and therefore, the phenomenon that the pollutants in the water are adsorbed and decomposed by the vitamin film is formed. The invention supplies oxygen for the microbial membrane through the hollow fiber oxygen permeable membrane, can promote the microbes to decompose pollutants in water, promote the microbial decomposition efficiency and improve the water body purification efficiency.
In the aforementioned bio-ecological integrated aeration floating island device, the hollow fiber oxygen permeable membrane comprises an innermost aerobic layer, an outermost flowing water layer, a facultative layer and an anaerobic layer, wherein the facultative layer is positioned between the aerobic layer and the flowing water layer, and the anaerobic layer is positioned between the facultative layer and the flowing water layer. Oxidation decomposition reaction and nitration reaction can occur in the aerobic layer; nitrification and nitrosation, and denitrification can occur within the facultative zone. Hydrolytic acidification and anaerobic digestion reactions occur within the anaerobic layer.
The oxidative decomposition reaction is to decompose the organic matters in the water by oxidation so as to achieve the purpose of purifying the water quality.
The nitrification reaction is to oxidize ammonia nitrogen into nitrite nitrogen and nitrate nitrogen under the action of nitrite bacteria and nitrate bacteria under aerobic conditions;
the denitrification reaction refers to the reaction of NO under the anoxic condition due to the action of facultative denitrifying bacteria (denitrifying bacteria)2-And NO3-Reduction to N2The process of (1). The invention realizes the removal of nitrogen by combining the nitrification reaction and the denitrification reaction.
Before denitrification reaction occurs, hydrolytic acidification reaction occurs in the anaerobic layer. Hydrolysis refers to biochemical reaction carried out extracellular before organic matter enters microbial cells, and the microbial completes biocatalysis reaction by releasing extracellular free enzyme or fixed enzyme connected to the outer wall of the cells; while acidification is a typical fermentation process, the metabolites of microorganisms are mainly various organic acids. The process by which the population of facultative anaerobic and anaerobic microorganisms convert organic matter into methane and carbon dioxide is known as anaerobic digestion.
In the aforementioned bio-ecological integrated aeration floating island device, the biological filler module includes a medium carrier frame and a fiber medium filled in the medium carrier frame; the content of the fiber medium filled in the medium carrier frame is 30 to 50 percent.
The fiber medium can adopt polypropylene fiber, and is woven by adopting filament fiber bundles (the thickness of single fiber hair) in a manner of weaving sweater or sacks (the fiber medium is woven into pieces in a manner of weaving sweater or sacks), if the filling density of the fiber medium in the medium carrier frame is too high (such as the content is higher than 50%), the fiber medium can be agglomerated under the condition of long-time operation, so that an anaerobic area is formed, and the problem of influencing water quality is caused; if the filling density is too low (the content is lower than 30%), the effect is limited, and the purpose of strengthening and purifying water quality cannot be achieved.
In the aforementioned biological and ecological integrated aeration floating island device, the device further comprises a first aeration fan, an aerator, a floating drum and a fan power supply device, wherein the first aeration fan is arranged on one side of the floating drum, the first aeration fan is connected with the fan power supply device, the fan power supply device is arranged on the floating drum, the aerator and the membrane aeration component are both connected with the first aeration fan, and the aerator is arranged below the biological filler area.
In the aforementioned biological and ecological integrated aeration floating island device, the device further comprises a first aeration fan, an aerator, a second aeration fan, a floating barrel and a fan power supply device, wherein the first aeration fan is arranged on one side of the floating barrel, the first aeration fan is connected with the fan power supply device, the fan power supply device is arranged on the floating barrel, the aerator is connected with the second aeration fan, the membrane aeration component is connected with the first aeration fan, and the aerator is arranged below the biological filler area.
The biological and ecological integrated aeration floating island device comprises m aeration plant areas and n biological filler areas, wherein the m aeration plant areas and the n biological filler areas are arranged at intervals, and m and n are positive integers; the number of the floating barrels is at least 2, and two ends of the biological and ecological integrated aeration floating island device are respectively provided with one floating barrel. The aeration plant areas and the biological filler areas which are arranged at intervals can further improve the water body purification efficiency and have better landscape effect.
When the device is installed, firstly, a floating island framework is erected on a flat production site, plant field planting floating plates, frameworks with aeration plant areas and biological filler areas alternately arranged and the field planting floating plates are spliced and fixed, then floating cylinders are installed at two ends of the framework, and then a plant module assembly, a membrane installation aeration assembly, a biological filler module, an aeration pipeline, a first aeration fan and/or a second aeration fan and an aerator are sequentially arranged.
Compared with the prior art, the invention can be directly arranged in the water body, is simple and convenient to construct by modular arrangement, and does not influence ship going and flood drainage. An aeration plant area combined by the plant module component and the membrane aeration component is utilized to realize gradient utilization of oxygen and effective purification of regional water. In addition, the following advantages are provided:
and (3) long-acting treatment: the water quality is continuously improved, an ecological system is restored, and finally self-cleaning capability is formed.
Ecological management: the method has the advantages of culturing and domesticating the indigenous microorganisms, not adding any medicament, not introducing new strains and reducing ecological risks.
The compatibility is good: the arrangement mode is flexible, and other technologies can be integrated for comprehensive treatment.
Good economical efficiency: micro-power aeration, simple operation and maintenance and low use cost.
Good load impact resistance: the microbial film can be attached to and grow on the hollow fiber oxygen permeable film, the fiber medium and emergent aquatic plant roots, is not lost due to water flow, and has good load impact performance such as initial rainwater pollution resistance and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 4 is a schematic structural diagram of another embodiment of the present invention;
fig. 5 is a structural schematic diagram of a planting floating plate of the invention.
Reference numerals: 1-aeration plant area, 101-plant module component, 102-membrane aeration component, 2-biological filler area, 201-field planting floating plate, 202-biological filler module, 2021-medium carrier frame, 3-floating planting device, 4-first aeration fan, 5-aerator, 6-second aeration fan, 7-buoy, 8-fan power supply device, 1011-plant field planting net device, 1012-lining screen, 1013-emergent aquatic plant, 9-aeration pipeline and 10-hole.
The invention is further described with reference to the following figures and detailed description.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1 of the invention: a biological and ecological integrated aeration floating island device comprises an aeration plant area 1 and a biological filler area 2, wherein the biological filler area 2 is positioned at one side of the aeration plant area 1; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 and a biological filler module 202 which are formed by splicing a fixed planting floating plate 201, and the fixed planting floating plate 201 is arranged above the biological filler module 202. Specifically, the plant module assembly 101 comprises a plant planting net device 1011, an inner lining screen 1012, emergent aquatic plants 1013 and a matrix, wherein the matrix is zeolite, tire particles, kaolin, anthracite and ceramsite which are filled in layers, and the type and the proportion of each matrix layer need to be considered in the matrix formed by filling in layers. The emergent aquatic plant 1013 and the matrix are arranged in the lining screen 1012, the lining screen 1012 is arranged in the planting net device 1011, the stem and leaf of the emergent aquatic plant 1013 are positioned above the water surface, and the root system and rhizome of the emergent aquatic plant are positioned below the water surface. Specifically, the bio-filler module 202 includes a media carrier rack 2021 and fiber media disposed on the media carrier rack 2021; in order to meet the requirement of strength load of 200kg in wet weight, the medium carrier 2021 body is made of light high molecular material; the fiber medium is a criss-cross woven fabric, and the top of the fiber medium is a mixed woven fabric and is hung on the medium carrier rack 2021. Specifically, the floating planting device 3 is formed by splicing a plurality of fixed planting floating plates 201 which can float on the water surface; the floating planting device 3 is of a rectangular disc-shaped structure. Further, the membrane aeration assembly 102 includes a hollow fiber oxygen permeable membrane, a microbial membrane is attached to the surface of the membrane aeration assembly 102, and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration assembly 102. Specifically, the hollow fiber oxygen permeable membrane comprises an aerobic layer at the innermost layer, a flowing water layer positioned at the outermost layer, a facultative layer and an anaerobic layer, wherein the facultative layer is positioned between the aerobic layer and the flowing water layer, and the anaerobic layer is positioned between the facultative layer and the flowing water layer. Specifically, the biological filler module 202 comprises a medium carrier rack 2021 and fiber media filled in the medium carrier rack 2021; the content of the fiber medium filled in the medium carrier 2021 was 30%. Further, still include first aeration fan 4, aerator 5, second aeration fan 6, flotation pontoon 7 and fan power supply unit 8, first aeration fan 4 sets up in one side of flotation pontoon 7, and first aeration fan 4 is connected with fan power supply unit 8, and fan power supply unit 8 sets up on flotation pontoon 7, and aerator 5 and second aeration fan 6 are connected, and membrane aeration subassembly 102 is connected with first aeration fan 4, and aerator 5 sets up in the below of biofilm carrier district 2.
Example 2 of the invention: a biological and ecological integrated aeration floating island device comprises 3 aeration plant areas 1 and 4 biological filler areas 2, wherein the 4 aeration plant areas 1 and the 4 biological filler areas 2 are arranged at intervals; the number of the floating barrels 7 is 2, and two ends of the biological and ecological integrated aeration floating island device are respectively provided with one floating barrel 7; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 and a biological filler module 202 which are formed by splicing a fixed planting floating plate 201, and the fixed planting floating plate 201 is arranged above the biological filler module 202. Specifically, the plant module assembly 101 comprises a plant planting net device 1011, an inner lining screen 1012, emergent aquatic plants 1013 and a matrix, wherein the matrix is zeolite, tire particles, kaolin, anthracite and ceramsite which are filled in layers, and the type and the proportion of each matrix layer need to be considered in the matrix formed by filling in layers. The emergent aquatic plant 1013 and the matrix are arranged in the lining screen 1012, the lining screen 1012 is arranged in the planting net device 1011, the stem and leaf of the emergent aquatic plant 1013 are positioned above the water surface, and the root system and rhizome of the emergent aquatic plant are positioned below the water surface. Specifically, the bio-filler module 202 includes a media carrier rack 2021 and fiber media disposed on the media carrier rack 2021; the main body of the medium carrier 2021 is made of light polymer material using synthetic resin as matrix. The fiber medium is a criss-cross woven fabric, and the top of the fiber medium is a mixed woven fabric and is hung on the medium carrier rack 2021. Specifically, the floating planting device 3 is formed by splicing a plurality of fixed planting floating plates 201 which can float on the water surface; the floating planting device 3 is in a square disc shape or a circular disc shape. Further, the membrane aeration assembly 102 includes a hollow fiber oxygen permeable membrane, a microbial membrane is attached to the surface of the membrane aeration assembly 102, and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration assembly 102. Specifically, the hollow fiber oxygen permeable membrane comprises an aerobic layer at the innermost layer, a flowing water layer positioned at the outermost layer, a facultative layer and an anaerobic layer, wherein the facultative layer is positioned between the aerobic layer and the flowing water layer, and the anaerobic layer is positioned between the facultative layer and the flowing water layer. Specifically, the biological filler module 202 comprises a medium carrier rack 2021 and fiber media filled in the medium carrier rack 2021; the content of the fiber medium filled in the medium carrier 2021 was 50%. Further, still include first aeration fan 4, aerator 5, second aeration fan 6, flotation pontoon 7 and fan power supply unit 8, first aeration fan 4 sets up in one side of flotation pontoon 7, first aeration fan 4 is connected with fan power supply unit 8, fan power supply unit 8 sets up on flotation pontoon 7, aerator 5 and second aeration fan 6 are connected, membrane aeration subassembly 102 is connected with first aeration fan 4 through aeration line 9, aerator 5 sets up in the below of biofilm carrier district 2.
Example 3 of the invention: a biological and ecological integrated aeration floating island device comprises 3 aeration plant areas 1 and 3 biological filler areas 2, wherein the 3 aeration plant areas 1 and the 3 biological filler areas 2 are arranged at intervals; the number of the floating barrels 7 is 2, and two ends of the biological and ecological integrated aeration floating island device are respectively provided with one floating barrel 7; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 and a biological filler module 202 which are formed by splicing a fixed planting floating plate 201, and the fixed planting floating plate 201 is arranged above the biological filler module 202. Specifically, the plant module assembly 101 comprises a plant planting net device 1011, an inner lining screen 1012, emergent aquatic plants 1013 and a matrix, wherein the matrix is zeolite, tire particles, kaolin, anthracite and ceramsite which are filled in layers, and the type and the proportion of each matrix layer need to be considered in the matrix formed by filling in layers. The emergent aquatic plant 1013 and the matrix are arranged in the lining screen 1012, the lining screen 1012 is arranged in the planting net device 1011, the stem and leaf of the emergent aquatic plant 1013 are positioned above the water surface, and the root system and rhizome of the emergent aquatic plant are positioned below the water surface. Specifically, the bio-filler module 202 includes a media carrier rack 2021 and fiber media disposed on the media carrier rack 2021; in order to meet the requirement of strength load of 200kg in wet weight, the medium carrier 2021 body is made of light high polymer material with synthetic resin as a matrix; the fiber medium is a criss-cross woven fabric, the top of the fiber medium is a mixed woven fabric and is hung on the medium carrier rack 2021, wherein the mixed woven fabric is formed by directly weaving the fiber medium onto the medium carrier rack 2021 without using hooks and the like as intermediaries for hanging, so that the whole biological filler module 202 is lighter and more beautiful, and the fiber medium is firmly combined on the medium carrier rack 2021. Specifically, the floating planting device 3 is formed by splicing a plurality of fixed planting floating plates 201 which can float on the water surface; the floating planting device 3 is of a rectangular disc-shaped structure. Further, the membrane aeration assembly 102 includes a hollow fiber oxygen permeable membrane, a microbial membrane is attached to the surface of the membrane aeration assembly 102, and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration assembly 102. Specifically, the hollow fiber oxygen permeable membrane comprises an aerobic layer at the innermost layer, a flowing water layer positioned at the outermost layer, a facultative layer and an anaerobic layer, wherein the facultative layer is positioned between the aerobic layer and the flowing water layer, and the anaerobic layer is positioned between the facultative layer and the flowing water layer. Specifically, the biological filler module 202 comprises a medium carrier rack 2021 and fiber media filled in the medium carrier rack 2021; the content of the fiber medium filled in the medium carrier rack 2021 was 35%. Further, still include first aeration fan 4, aerator 5, second aeration fan 6, flotation pontoon 7 and fan power supply unit 8, first aeration fan 4 sets up in one side of flotation pontoon 7, and first aeration fan 4 is connected with fan power supply unit 8, and fan power supply unit 8 sets up on flotation pontoon 7, and aerator 5 and second aeration fan 6 are connected, and membrane aeration subassembly 102 is connected with first aeration fan 4, and aerator 5 sets up in the below of biofilm carrier district 2. The fan power supply device can adopt a distributed photovoltaic power generation device.
Example 4 of the invention: a biological and ecological integrated aeration floating island device comprises an aeration plant area 1 and a biological filler area 2, wherein the biological filler area 2 is positioned at one side of the aeration plant area 1; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 and a biological filler module 202 which are formed by splicing a fixed planting floating plate 201, and the fixed planting floating plate 201 is arranged above the biological filler module 202. Specifically, the plant module assembly 101 comprises a plant planting net device 1011, an inner lining screen 1012, emergent aquatic plants 1013 and a matrix, wherein the matrix is zeolite, tire particles, kaolin, anthracite and ceramsite which are filled in layers, and the type and the proportion of each matrix layer need to be considered in the matrix formed by filling in layers. The emergent aquatic plant 1013 and the matrix are arranged in the lining screen 1012, the lining screen 1012 is arranged in the planting net device 1011, the stem and leaf of the emergent aquatic plant 1013 are positioned above the water surface, and the root system and rhizome of the emergent aquatic plant are positioned below the water surface. Specifically, the bio-filler module 202 includes a media carrier rack 2021 and fiber media disposed on the media carrier rack 2021; in order to meet the requirement of strength load, the wet weight is 200kg, the medium carrier 2021 body is made of a light polymer material taking synthetic resin as a matrix, and the strength meets the load requirement; the fiber medium is a criss-cross woven fabric, and the top of the fiber medium is a mixed woven fabric and is hung on the medium carrier rack 2021. Specifically, the floating planting device 3 is formed by splicing a plurality of fixed planting floating plates 201 which can float on the water surface; the floating planting device 3 is of a rectangular disc-shaped structure. Further, the membrane aeration assembly 102 includes a hollow fiber oxygen permeable membrane, a microbial membrane is attached to the surface of the membrane aeration assembly 102, and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration assembly 102. Specifically, the hollow fiber oxygen permeable membrane comprises an aerobic layer at the innermost layer, a flowing water layer positioned at the outermost layer, a facultative layer and an anaerobic layer, wherein the facultative layer is positioned between the aerobic layer and the flowing water layer, and the anaerobic layer is positioned between the facultative layer and the flowing water layer. Specifically, the biological filler module 202 comprises a medium carrier rack 2021 and fiber media filled in the medium carrier rack 2021; the content of the fiber medium filled in the medium carrier 2021 was 40%. The fan power supply device is a distributed photovoltaic power generation device.
Example 5 of the invention: a biological and ecological integrated aeration floating island device comprises an aeration plant area 1 and a biological filler area 2, wherein the biological filler area 2 is positioned at one side of the aeration plant area 1; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 and a biological filler module 202 which are formed by splicing a fixed planting floating plate 201, and the fixed planting floating plate 201 is arranged above the biological filler module 202. Specifically, the plant module assembly 101 comprises a plant planting net device 1011, an inner lining screen 1012, emergent aquatic plants 1013 and a matrix, wherein the matrix is zeolite, tire particles, kaolin, anthracite and ceramsite which are filled in layers, and the type and the proportion of each matrix layer need to be considered in the matrix formed by filling in layers. The emergent aquatic plant 1013 and the matrix are arranged in the lining screen 1012, the lining screen 1012 is arranged in the planting net device 1011, the stem and leaf of the emergent aquatic plant 1013 are positioned above the water surface, and the root system and rhizome of the emergent aquatic plant are positioned below the water surface. Specifically, the bio-filler module 202 includes a media carrier rack 2021 and fiber media disposed on the media carrier rack 2021; in order to meet the requirement of strength load, the wet weight is 200kg, the medium carrier 2021 body is made of a light polymer material taking synthetic resin as a matrix, and the strength meets the load requirement; the fiber medium is a criss-cross woven fabric, and the top of the fiber medium is a mixed woven fabric and is hung on the medium carrier rack 2021. Specifically, the floating planting device 3 is formed by splicing a plurality of fixed planting floating plates 201 which can float on the water surface; the floating planting device 3 is of a rectangular disc-shaped structure. Further, the membrane aeration assembly 102 includes a hollow fiber oxygen permeable membrane, a microbial membrane is attached to the surface of the membrane aeration assembly 102, and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration assembly 102.
Example 6 of the invention: a biological and ecological integrated aeration floating island device comprises an aeration plant area 1 and a biological filler area 2, wherein the biological filler area 2 is positioned at one side of the aeration plant area 1; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 formed by splicing a plurality of fixed planting floating plates 201 and a biological filler module 202, and the fixed planting floating plates 201 are arranged above the biological filler module 202. Specifically, the plant module assembly 101 comprises a plant planting net device 1011, an inner lining screen 1012, emergent aquatic plants 1013 and a matrix, wherein the matrix is zeolite, tire particles, kaolin, anthracite and ceramsite which are filled in layers, and the type and the proportion of each matrix layer need to be considered in the matrix formed by filling in layers. The emerging plant 1013 and the matrix are arranged in the lining screen 1012, the lining screen 1012 is arranged in the field planting net device 1011, the stem and the leaf of the emerging plant 1013 are above the water surface, the root and the rhizome of the emerging plant are below the water surface, in this example, two adjacent field planting floating plates 201 are connected by a connecting piece which can be a steel wire or a rope and penetrates through a hole 10 arranged on the side wall of the field planting floating plate 201.
Example 7 of the invention: a biological and ecological integrated aeration floating island device comprises an aeration plant area 1 and a biological filler area 2, wherein the biological filler area 2 is positioned at one side of the aeration plant area 1; the aerated plant zone 1 comprises a plant module assembly 101 and a membrane aeration assembly 102 located below the plant module assembly 101; the biological filler area 2 comprises a floating device 3 and a biological filler module 202 which are formed by splicing a fixed planting floating plate 201, and the fixed planting floating plate 201 is arranged above the biological filler module 202.
The working principle of the invention is as follows:
the invention utilizes the biomembrane method technology to arrange a biological and ecological integrated aeration floating island device in a river channel, and the main functional layer is a microbial membrane attached to the surface of the membrane aeration component 102. The microbial membrane is composed of microorganisms and extracellular polymers, and comprises bacteria, eualgae protozoa, metazoans and the like. The microbial film has a special layer structure, a complex community and a longer food chain, organic pollutants in the sewage are taken as nutrient substances for the microbes on the microbial film, the sewage is purified, the microbes are propagated and proliferated, and the microbes in the microbial film attached to the surface of the film aeration component 102 are various and complex in structure, so that the microbial film can effectively reduce the influence of water flow shearing force and toxic harmful substances on the activity of the microbes, has stronger adaptability to a water body, has longer sludge retention time, is beneficial to the growth and enrichment of the microbes with long growth generation time and slow propagation speed, and strengthens the nitrogen and phosphorus removal capacity; higher organisms live and multiply, and protozoa and metazoa usually feed on microorganisms, so that the membrane thickness can be effectively controlled, and the sludge yield is reduced. The membrane aeration component 102 not only serves as an aeration device, but also can serve as an attachment carrier of the microbial membrane, pollutants in the attached microbial membrane and oxygen are subjected to reverse mass transfer, and the dissolved oxygen gradient is fully utilized to improve the pollutant treatment efficiency.
Claims (10)
1. A biological and ecological integrated aeration floating island device is characterized by comprising an aeration plant area (1) and a biological filler area (2), wherein the biological filler area (2) is positioned on one side of the aeration plant area (1); the aerated plant zone (1) comprises a plant module assembly (101) and a membrane aeration assembly (102) located below the plant module assembly (101); the biological filler area (2) comprises a floating device (3) and a biological filler module (202) which are formed by splicing a fixed planting floating plate (201), and the fixed planting floating plate (201) is arranged above the biological filler module (202).
2. A bio-ecological integrated aeration floating island device according to claim 1, wherein the plant module assembly (101) comprises a plant planting net device (1011), a lining screen (1012), emergent aquatic plants (1013) and a substrate, the emergent aquatic plants (1013) and the substrate are placed in the lining screen (1012), the lining screen (1012) is arranged in the planting net device (1011), the stems and leaves of the emergent aquatic plants (1013) are located above the water surface, and the roots of the emergent aquatic plants are located below the water surface.
3. A bio-ecological integrated aeration floating island device according to claim 1, wherein the bio-filler module (202) comprises a medium carrier frame (2021) and a fiber medium disposed on the medium carrier frame (2021); the body of the medium carrier frame (2021) is made of light high polymer material; the fiber medium is a criss-cross woven fabric, and the top of the fiber medium is a mixed woven fabric and is hung on a medium carrier rack (2021).
4. A bio-ecological integrated aeration floating island device according to claim 1, wherein the floating planting device (3) is formed by splicing a plurality of planting floating plates (201) which can float on the water surface; the floating planting device (3) is of a rectangular disc structure or a square disc structure or a circular disc structure.
5. A bio-ecological integrated aeration floating island device according to claim 1, wherein the membrane aeration component (102) comprises a hollow fiber oxygen permeable membrane, and a microbial membrane is attached to the surface of the membrane aeration component (102), and the hollow fiber oxygen permeable membrane supplies oxygen to the microbial membrane attached to the surface of the membrane aeration component (102).
6. The bio-ecological integrated aeration floating island device according to claim 1, wherein the hollow fiber oxygen permeable membrane comprises an innermost aerobic layer, a flowing water layer positioned at the outermost layer, a facultative layer and an anaerobic layer, wherein the facultative layer is positioned between the aerobic layer and the flowing water layer, and the anaerobic layer is positioned between the facultative layer and the flowing water layer.
7. A bio-ecological integrated aeration floating island device according to claim 3, wherein the bio-filler module (202) comprises a medium carrier frame (2021) and a fiber medium filled in the medium carrier frame (2021); the content of the fiber medium filled in the medium carrier frame (2021) is 30-50%.
8. The integrated bio-ecological aeration floating island device according to claim 1 or 7, further comprising a first aeration fan (4), an aerator (5), a float bowl (7) and a fan power supply device (8), wherein the first aeration fan (4) is arranged on one side of the float bowl (7), the first aeration fan (4) is connected with the fan power supply device (8), the fan power supply device (8) is arranged on the float bowl (7), the aerator (5) and the membrane aeration assembly (102) are both connected with the first aeration fan (4), and the aerator (5) is arranged below the biological filler area (2).
9. The integrated bio-ecological aeration floating island device according to claim 1 or 7, further comprising a first aeration fan (4), an aerator (5), a second aeration fan (6), a float bowl (7) and a fan power supply device (8), wherein the first aeration fan (4) is arranged at one side of the float bowl (7), the first aeration fan (4) is connected with the fan power supply device (8), the fan power supply device (8) is arranged on the float bowl (7), the aerator (5) is connected with the second aeration fan (6), the membrane aeration assembly (102) is connected with the first aeration fan (4), and the aerator (5) is arranged below the bio-filler area (2).
10. A bio-ecological integrated aeration floating island device according to claim 9, which comprises m aeration plant areas (1) and n biological filler areas (2), wherein the m aeration plant areas (1) and the n biological filler areas (2) are arranged at intervals, and m and n are positive integers; the number of the floating barrels (7) is at least 2, and the two ends of the biological and ecological integrated aeration floating island device are respectively provided with one floating barrel (7).
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