CN220432516U - Device for improving runoff water quality by green roof coupling microbial fuel cell - Google Patents
Device for improving runoff water quality by green roof coupling microbial fuel cell Download PDFInfo
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- CN220432516U CN220432516U CN202320676363.1U CN202320676363U CN220432516U CN 220432516 U CN220432516 U CN 220432516U CN 202320676363 U CN202320676363 U CN 202320676363U CN 220432516 U CN220432516 U CN 220432516U
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- green roof
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 230000000813 microbial effect Effects 0.000 title claims abstract description 50
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- 210000004027 cell Anatomy 0.000 claims abstract description 53
- 238000003860 storage Methods 0.000 claims abstract description 31
- 239000011159 matrix material Substances 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 20
- 210000005056 cell body Anatomy 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000009292 forward osmosis Methods 0.000 claims abstract description 8
- 244000005700 microbiome Species 0.000 claims description 4
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000010455 vermiculite Substances 0.000 claims description 3
- 235000019354 vermiculite Nutrition 0.000 claims description 3
- 229910052902 vermiculite Inorganic materials 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 239000011236 particulate material Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 206010016807 Fluid retention Diseases 0.000 description 2
- 241000189144 Sedum lineare Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000005068 transpiration Effects 0.000 description 2
- 241000220284 Crassulaceae Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241000220286 Sedum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920006221 acetate fiber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 239000002657 fibrous material Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a device for improving runoff water quality by using a green roof coupling microbial fuel cell, and relates to the technical field of green roof runoff water quality improvement. Comprises a green roof structure, a microbial fuel cell and a water storage device. The green roof structure comprises a plastic box body, a waterproof membrane, a drainage layer, tao Li, a filter layer, a matrix layer and a planting area, and the microbial fuel cell comprises a cell body, a forward osmosis membrane, a cathode, an anode, a cathode chamber and an anode chamber. The technical scheme of the utility model is that the device for improving the runoff water quality by coupling the microbial fuel cell on the green roof is provided, the technology of coupling the microbial fuel cell is used for treating the produced runoff water on the premise of realizing the rainwater attenuation capability of the green roof, the water quality of the produced runoff water is improved, and the runoff water is stored by the water storage device, so that the aim of saving water is fulfilled. The technology of the utility model has simple structure and process flow, convenient construction, easily obtained materials and high cost performance.
Description
Technical Field
The utility model relates to a green roof coupling microbial fuel cell device, which is applicable to the technical field of green roof runoff water quality improvement.
Background
There is significant evidence that green roofs can bring about a variety of benefits such as rain management, reduction of urban heat islands, increase of urban plants, wildlife habitat and roof life, increase of air and water quality and quality of life, reduction of building energy costs, reduction of noise pollution, promotion of recreational activities, and increase of greening area and aesthetic value in urban environments. The green roof reduces the burden on water treatment facilities in one area due to the improvement of water quality. The green roof is used as a development facility with low influence, has high space flexibility especially in urban areas with high building density, and gradually becomes a popular rainwater regulation and resource utilization measure.
Microbial fuel cell (Microbial fuel cells, MFCs) technology is an emerging technology for directly converting chemical energy in organic matter into electrical energy by the action of electricity-producing microorganisms, and has been widely focused by researchers in recent years, and is basically mature in terms of research, and MFCs have been combined with physical, chemical and biological processes for wastewater treatment, bioelectric production, chemical production and desalination. Hybrid systems are more promising than stand-alone MFCs. These systems include bioelectric Fenton MFC, microbial desalination cells, MFC electroadsorption cells, microbial solar cells, microbial reverse electrodialysis cells, plant MFC, constructed wetland MFC, and the like. MFCs technology provides an ideal path for solving the environmental and energy problems currently faced.
Compared with a common asphalt roof, the green roof has the advantages of effectively retaining rainwater, reducing the concentration of outflow TSS, neutralizing the pH value of the rainfall and the like, but the growth matrix of the green roof can have great influence on the water quality of rainfall runoff. Although the increase in organics improves the matrix structure and provides more active nutrients, organics may be a source of effluent rain water contaminants that result in an increase in the concentration of chemical oxygen demand, total nitrogen, biochemical oxygen demand, and some metal ions in the effluent. Therefore, it is necessary and significant to provide a novel green roof-coupled microbial fuel cell runoff water quality improvement device to solve the above problems.
Disclosure of Invention
(one) solving the technical problems
The utility model aims to provide a green roof coupling microbial fuel cell device, which is used for solving the problem that the concentration of indexes such as chemical oxygen demand, total nitrogen and the like in runoff water is increased due to organic matter leaching of a growth substrate and a pollutant source such as discharged rainwater in the existing green roof structure in the background technology.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a device that green roof coupling microorganism fuel cell improved runoff quality of water which characterized in that: the water storage tank is characterized by comprising a support frame, the upper left end of the support frame is of a green roof structure, the upper right end of the support frame is of a microbial fuel cell reaction tank, the right end of a water outlet of a water draining layer of the green roof is fixedly provided with a first ball valve through threads, the right end of the first ball valve is fixedly provided with a first water outlet pipe through threads, the first water outlet pipe is fixedly connected with a water inlet of the left end of an anode chamber inside a microbial fuel cell body through threads, the right end of the anode chamber of the microbial fuel cell is fixedly connected with a second ball valve through threads, the right end of the second ball valve is fixedly connected with a second water outlet pipe through threads, and the right end of the second water outlet pipe extends out and downwards to the top end of a water storage tank in the water storage tank device and is fixedly connected with the top end of the water storage tank through threads.
The waterproof membrane is fixedly attached to the bottom of the plastic box, the waterproof membrane is covered with the drainage layer, the upper end of the drainage layer is covered with the filter layer, the matrix layer is covered with the planting area, the right end of a water outlet at the bottom of the drainage layer is fixedly connected with a first ball valve through threads, and Tao Li granular materials are stacked in the drainage layer to be filled in the inside.
The right end of the first water outlet pipe is fixedly connected with the microbial fuel cell through threads and extends into the cell body from the left end to be connected with the anode chamber.
The microbial fuel cell consists of a cell body, a forward osmosis membrane, an anode chamber, a cathode and a cathode chamber, wherein the forward osmosis membrane is curled into a ring shape and is arranged between the anode and the cathode, the anode is made of stainless steel net and tightly surrounds the inner wall of the cell body, and the cathode is made of graphite column and is vertically fixed in the center of the cell body.
The water outlet at the right end of the drainage layer is fixedly provided with a first ball valve, the right end of the ball valve is fixedly connected with a first water outlet pipe through threads, the water outlet at the right end of the anode chamber is fixedly connected with a second ball valve through threads, the right end of the second ball valve is connected with a second water outlet pipe through threads, and the second water outlet pipe extends rightwards and downwards to be connected to a water inlet above the water storage tank through threads.
The water outlet at the right end of the microbial fuel cell is fixedly connected with a second ball valve through threads, the right end of the second ball valve is connected with a second water outlet pipe, the right end of the second water outlet pipe is connected with a water storage device in an extending mode, the bottom end of a water storage tank is fixedly connected with a support through threads, the water outlet at the right side of the bottom end of the water storage tank is fixedly provided with a ball valve faucet through threads, and the mouth part of the faucet end of the ball valve is fixedly provided with a plastic hose through threads.
The matrix layer is formed by garden soil: vermiculite: perlite is selected and mixed according to the proportion of 7:2:1, and is evenly laid above the filter layer.
The planting area adopts Crassulaceae succulent plants and sedum lineare to grow on the substrate layer.
The filter layer is laid between the matrix layer drainage layers by adopting polyester fiber non-woven fabrics, so that water can be permeated and filtered, and the matrix in the matrix layer is prevented from entering the drainage layers to block the pipeline.
The waterproof membrane is paved by TPO waterproof coiled materials to play a role in waterproof and leakage prevention.
(III) beneficial effects
Compared with the prior art, the utility model provides a green roof coupling microbial fuel cell runoff water quality improving device, which has the following effects:
1. this green roof coupling microbial fuel cell improves runoff quality of water device through setting up the green roof structure on the building body, can be when raining based on plant interception, water retention and transpiration ability a part by the plant absorption or evaporation back atmosphere in the planting district, is absorbed or remain in the growth matrix hole by growth matrix through matrix layer a part, has reduced flood peak flow and runoff, plays good rainwater attenuation ability.
2. According to the device for improving the runoff water quality by using the green roof coupling microbial fuel cell, the coupling microbial fuel cell device is selected for improving and purifying the rainwater quality, so that the organic pollution indexes such as COD, TN, TP in the runoff water quality of the green roof are effectively reduced, and the device has a good treatment effect.
3. According to the device for improving runoff water quality by using the green roof-coupled microbial fuel cell, the basic materials from the green roof structure to the microbial fuel cell are all selected by taking high cost performance as a principle, the microbial fuel cell uses organic wastewater as fuel, the treatment cost is reduced, the materials are all easy to obtain, and the device is simple in structure and convenient to construct.
4. The device for improving the runoff water quality by coupling the green roof with the microbial fuel cell can store the treated runoff water by the water storage device, can be used for irrigating vegetation, and saves water resources.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of the microbial fuel cell 2 of FIG. 1 from the perspective "A-A";
in the figure: 1. a green roof; 2. a microbial fuel cell; 3. a water storage device; 11. a planting area; 12. tao Li; 13. a substrate layer; 14. a filter layer; 15. a drainage layer; 16. a waterproof membrane; 17. a plastic box; 18. a bracket; 19. a first ball valve; 20. a first water outlet pipe; 21. a pool body; 22. a forward osmosis membrane; 23. a cathode; 24. an anode; 25 cathode chambers; 26. an anode chamber; 27. a second ball valve; 30. a second water outlet pipe; 31. a water storage tank; 32. a support; 33. ball valve tap; 34. a plastic hose.
Detailed Description
The following description of the present utility model will be made in full and clear by reference to the structural schematic drawings of the present utility model, in which the described embodiments are only some, but not all, of the embodiments of the present utility model.
Referring to fig. 1, a device for improving runoff water quality of a green roof coupling microbial fuel cell is disclosed, the bottom end is fixedly provided with a supporting bracket 18 through threads, the left side of the upper end of the bracket 18 is fixedly provided with a green roof structure 1 through threads, the right side upper end of the bracket 18 is fixedly provided with a tank body 21 part of the microbial fuel cell 2 through threads, the left side of the upper end of the bracket 18 is fixedly provided with a plastic tank 17 through threads, the inner bottom of the plastic tank 17 is fixedly attached with a waterproof membrane 16, the waterproof membrane is made of a TPO waterproof coiled material, the waterproof membrane is high in waterproof performance and wide in application and reasonable in price, the upper end of the waterproof membrane 16 is covered and paved with a drainage layer 15, the paving thickness of the drainage layer 15 is about 10cm, the inside is internally stacked and filled with Tao Li granular materials with the average diameter of 3cm, the upper end of the drainage layer 15 is fixedly provided with a filter layer 14, the filter layer 14 is made of a polyester fiber non-woven fabric material, the filter is easy to obtain and has a water filtering and permeable function, the price is low, the upper end of the filter layer 14 is covered with a matrix layer 13, and the matrix layer 13 is made of garden soil: vermiculite: perlite is selected for 7:2:1 proportion, stability is high, the material acquisition cost performance is high, easy mixed use, the upper end of matrix layer 13 is covered with planting district 11, planting district 11 vegetation is selected sedum family fleshy plants and sedum lineare plants and is planted, cold-resistant drought-enduring of plant, easy cultivation and lower requirements on living environment are achieved, the right-hand member of water outlet at the bottom of drainage layer 15 is connected with first ball valve 19 through screw thread fixedly, first ball valve right-hand member is connected with first outlet pipe 20 through screw thread fixedly, first outlet pipe 20 right-hand member and microbial fuel cell 2 left-hand end water inlet are connected through screw thread fixedly and extend into pond body 21 and anode chamber 26, body 21 is built with concrete material, microbial fuel cell 2 is inside, use graphite column as cathode 23 vertical to be fixed in the center of body 21, use stainless steel net as anode 24, closely encircle body 21 inner wall, forward osmosis membrane 22 is selected acetate fiber material membrane, set up between cathode 23 and anode 24 in a curled shape, separate the pond into cathode chamber 25 and anode chamber 26 with equal volume, the right-hand member water outlet 2 right-hand member is connected with second ball valve 27 through screw thread fixedly and water storage device through screw thread fixedly connected with water outlet 33, water storage device is provided with water storage tank 32 through water storage device is provided with right-hand member 33, water storage device is connected with right-hand member 33 through screw thread fixedly, water storage device is required to be connected with water storage device is provided with water storage tank 33, water storage device is required to be connected with water storage tank 32 through screw thread fixedly connected with water storage device 3, water storage device is provided with water storage tank 33.
Principle of operation
The green roof structure can get into planting district 11 and matrix layer 13 earlier in the rainwater when raining, and the water retention of plant intercepts the water transpiration ability and absorbs or evaporates the rainwater earlier, handles partial rainwater, and a part of rainwater gets into matrix layer 13 and is absorbed or remain in the matrix hole by the growth matrix, when the green roof of city acts on simultaneously, can play the rainwater decay, effectively absorbs the rainfall, reduces the runoff peak value, reduces flood risk.
When the rainwater is too big, the rainwater runoff oozes the rainwater through matrix layer 13, and substances such as impurity silt prevents to block the outlet through filter layer 14 filtration aquatic, and the rainwater reaches drainage layer 15 after the filtration, fills a large amount of Tao Li in the drainage layer 15, tao Li inside have a lot of holes, can not harden, not only ventilative permeating water, and can not disintegrate and can not produce muddy water after soaking, interception ability is strong, and low price. When excessive rainwater is accumulated through the drainage layer 15, the first ball valve 19 is opened, the rainwater flows into the microbial fuel cell 2 through the water inlet of the microbial fuel cell through the first water outlet pipe 20, flows from the periphery of the cell body 21 to the center, takes the osmotic pressure difference as driving force, so that the water is automatically diffused to the cathode chamber 25 with low water chemical potential through the forward osmosis membrane 22 from the anode chamber 26 with high water chemical potential, the anode chamber 26 generates flocculating agent to adsorb suspended matters, phosphorus and other substances in the water body, and the substances are settled to the bottom of the cell through gravity, and the settled substances are cleaned regularly. Anode chamber 26 produces electricity from the flocculant by degrading COD and is preferably supplied to cathode chamber 25 for reaction to treat nitrogen without the need for external pressure and energy.
The rainwater is treated by the microbial fuel cell 2, the rainwater and part of organic pollutants generated by sources such as matrix runoff are treated, the runoff water quality is greatly improved, the water flows out from a water outlet at the right end of the microbial fuel cell 2, a second ball valve 27 is opened, the water flows into a water storage tank in the water storage device 3 through a second water outlet pipe 30, a ball valve tap 33 can be opened when the water storage device is needed to be used, and the water flows out from a plastic hose 34 for use.
Finally, it should be noted that: while the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that the utility model is not limited thereto and that the utility model is not limited thereto: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (5)
1. The utility model provides a device for improving runoff quality of water by green roof coupling microbial fuel cell, its characterized in that includes green roof (1), microbial fuel cell (2), water storage device (3), green roof (1), microbial fuel cell (2) bottom is through screw thread fixed support bracket (18), support bracket (18) upper end left side is through screw thread fixed connection plastic box (17), support bracket (18) upper end right side is through screw thread fixed with microbial fuel cell (2) cell body (21), plastic box (17) inside bottom laminating is fixed with water proof membrane (16), water proof membrane (16) upper end cover has water drainage layer (15), water drainage layer (15) upper end cover has filter layer (14), filter layer (14) upper end cover has matrix layer (13), matrix layer (13) upper end cover has planting district (11), water drainage layer (15) bottom delivery port right side is through screw thread fixed connection first ball valve (19), first ball valve (19) right-hand member and first water outlet pipe (20) are through screw thread fixed connection with first water outlet pipe (20) and are connected with the little water outlet pipe (20) through screw thread fixed connection of water outlet pipe (20) into the positive pole (2), the utility model discloses a microbial fuel cell, including microorganism fuel cell (2), second ball valve (27) is passed through to microorganism fuel cell (2) right-hand member delivery port, second ball valve (27) right-hand member passes through screw thread fixed connection second outlet pipe (30), second outlet pipe (30) right-hand member extension connection water storage device (3), second outlet pipe (30) are passed through screw thread fixed connection to water tank (31) upper end water inlet, water tank (31) bottom is passed through screw thread fixed connection support (32), water tank bottom right side delivery port passes through screw thread fixed ball valve tap (33), ball valve tap (33) port portion is passed through screw thread fixed connection plastic hose (34).
2. The device for improving runoff water quality of a green roof-coupled microbial fuel cell of claim 1, wherein: the microbial fuel cell (2) is composed of a cell body (21), a forward osmosis membrane (22), a cathode (23), an anode (24), a cathode chamber (25) and an anode chamber (26).
3. The device for improving runoff water quality of a green roof-coupled microbial fuel cell of claim 1, wherein: in the microbial fuel cell (2), a forward osmosis membrane (22) is curled into a ring shape and is arranged between an anode (24) and a cathode (23), the anode (24) tightly surrounds the inner wall of a cell body (21), and the cathode (23) is vertically fixed in the center of the cell body (21).
4. The device for improving runoff water quality of a green roof-coupled microbial fuel cell of claim 1, wherein: the drainage layer (15) is internally stacked with Tao Li (12) particulate material.
5. The device for improving runoff water quality of a green roof-coupled microbial fuel cell of claim 1, wherein: the materials in the matrix layer (13) are formed by garden soil: vermiculite: perlite is selected and mixed according to the proportion of 7:2:1, and is uniformly paved at the upper end of the filter layer (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320676363.1U CN220432516U (en) | 2023-03-31 | 2023-03-31 | Device for improving runoff water quality by green roof coupling microbial fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320676363.1U CN220432516U (en) | 2023-03-31 | 2023-03-31 | Device for improving runoff water quality by green roof coupling microbial fuel cell |
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| Publication Number | Publication Date |
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| CN220432516U true CN220432516U (en) | 2024-02-02 |
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| CN202320676363.1U Active CN220432516U (en) | 2023-03-31 | 2023-03-31 | Device for improving runoff water quality by green roof coupling microbial fuel cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118005229A (en) * | 2024-03-15 | 2024-05-10 | 江苏清泉环保科技有限公司 | Ecological comprehensive remediation system and method based on environment-friendly water treatment technology |
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2023
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118005229A (en) * | 2024-03-15 | 2024-05-10 | 江苏清泉环保科技有限公司 | Ecological comprehensive remediation system and method based on environment-friendly water treatment technology |
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