CN117466445A - Domestic sewage resource carbon sink system - Google Patents
Domestic sewage resource carbon sink system Download PDFInfo
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- CN117466445A CN117466445A CN202311803742.3A CN202311803742A CN117466445A CN 117466445 A CN117466445 A CN 117466445A CN 202311803742 A CN202311803742 A CN 202311803742A CN 117466445 A CN117466445 A CN 117466445A
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- 239000010865 sewage Substances 0.000 title claims abstract description 68
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 35
- 244000207740 Lemna minor Species 0.000 claims abstract description 115
- 235000006439 Lemna minor Nutrition 0.000 claims abstract description 115
- 235000001855 Portulaca oleracea Nutrition 0.000 claims abstract description 115
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000029087 digestion Effects 0.000 claims abstract description 63
- 238000004064 recycling Methods 0.000 claims abstract description 30
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 16
- 244000005700 microbiome Species 0.000 claims abstract description 14
- 235000013305 food Nutrition 0.000 claims abstract description 5
- 244000038280 herbivores Species 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 40
- 239000011521 glass Substances 0.000 claims description 27
- 235000015097 nutrients Nutrition 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 16
- 241000237858 Gastropoda Species 0.000 claims description 11
- 235000014676 Phragmites communis Nutrition 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 241000251468 Actinopterygii Species 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 6
- 241000237536 Mytilus edulis Species 0.000 claims description 5
- 235000020638 mussel Nutrition 0.000 claims description 5
- 239000011146 organic particle Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 241000736262 Microbiota Species 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000005570 vertical transmission Effects 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 230000012010 growth Effects 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 241000195493 Cryptophyta Species 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 235000016709 nutrition Nutrition 0.000 description 4
- 230000035764 nutrition Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 241001113556 Elodea Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002354 daily effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000010977 jade Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- 241000238571 Cladocera Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000022261 cerebral cortex tangential migration using cell-cell interactions Effects 0.000 description 1
- 238000010516 chain-walking reaction Methods 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000002846 particulate organic matter Substances 0.000 description 1
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- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
- C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Biotechnology (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Ecology (AREA)
- Biological Treatment Of Waste Water (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention provides a domestic sewage recycling carbon sink system which is applied to the technical field of sewage treatment and comprises a negative pressure oxygenation unit, a digestion tank and a sunlight shed digestion unit; the negative pressure oxygenation unit comprises a first tank body; an open water body is arranged in the digestion tank; a preset distance is formed between the digestion tank and the sunlight shed digestion unit; the sunlight shed digestion unit comprises a second pool body and a shed body covered above the second pool body, wherein the shed body is used for adjusting the temperature of the second pool body to be at least a first preset temperature; the second pool body is provided with a duckweed bioconversion area and a duckweed utilization area, the duckweed bioconversion area is planted with duckweed, a microorganism group is formed on the root system of the duckweed, and the duckweed utilization area is cultivated with a herbivore taking the duckweed as food. The invention has the technical effects of reasonable design and effectively solves the problems of rural domestic sewage discharge and black and odorous sewage receiving pits.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a domestic sewage recycling carbon sink system.
Background
The problems of rural domestic sewage discharge and black and odorous substances in a random sewage receiving pit are not effective treatment methods, and the problems are easy to cause bad odor and mosquitoes and flies to go around. Especially, living environment of residents around the pit is bad, and the surrounding air environment is seriously influenced, so that the physical health of the residents is seriously influenced.
Although a large amount of medicines are used for treatment, the effect is very little. Meanwhile, a great amount of manpower and material resources are repeatedly input in the treatment process, so that serious resource waste is caused.
Therefore, the treatment of domestic sewage discharge and a sewage receiving pit is a technical problem to be solved urgently.
Disclosure of Invention
The invention aims at solving at least one of the technical problems existing in the prior art and provides a novel technical scheme of a domestic sewage recycling carbon sink system.
According to one aspect of the present invention, there is provided a domestic sewage recycling carbon sink system comprising:
the negative pressure oxygenation unit comprises a first tank body;
the digestion tank is internally provided with an open water body, and aquatic organisms are cultured in the digestion tank;
the sunlight shed digestion unit is used for forming a preset distance between the digestion tank and the sunlight shed digestion unit; the sunlight shed digestion unit comprises a second pool body and a shed body covered above the second pool body, wherein the shed body is used for adjusting the temperature of the second pool body to be at least a first preset temperature; the second pool body is provided with a duckweed bioconversion area and a duckweed utilization area, the duckweed bioconversion area is planted with duckweed, a microorganism group is formed on the root system of the duckweed, and the duckweed utilization area is cultivated with a herbivore taking the duckweed as food; wherein the water body and duckweed of the duckweed bioconversion region can flow into the duckweed utilization region;
the pretreated domestic sewage is discharged into the first tank body for oxygenation, and sequentially passes through the duckweed bioconversion area and the duckweed utilization area to enter the digestion tank; wherein, in the duckweed bioconversion area, the microbiota formed by the duckweed root system can utilize the nutrient substances in the domestic sewage; in the digestion tank, the organic particles which are not decomposed are swallowed by the snails and the mussels in the aquatic organisms, and the microorganisms which flow in from the sunlight shed digestion units are used as the baits for the fishes in the aquatic organisms.
Optionally, the negative pressure oxygenation unit further comprises a water pump and a circulating pipe, and the water pump is arranged in the second tank body; one end of the circulating pipe is connected with the output end of the water pump, and the other end of the circulating pipe is connected with the first tank body;
the water pump is used for pumping the water body in the second tank body into the first tank body through the circulating pipe.
Optionally, the tank wall of the second tank body is built by T-shaped rail steel and glass;
the T-shaped track steel comprises wing plates and a web plate, the glass is supported on the web plate, and a buffer cushion layer is arranged between the web plate and the glass; the surface of the glass is flush with the surface of the web, and the surface of the glass and the surface of the web together comprise the inner surface of the pool wall.
Optionally, the domestic sewage recycling carbon sink system further comprises a cleaning unit;
the cleaning unit comprises a motor, a bevel gear, a transmission rod, a transmission chain and a cleaning brush;
the vertical transmission rod is positioned at the inner side of one end of the tank wall of the second tank body, and the motor drives the transmission rod to rotate through the bevel gear so as to drive the transmission chain to move; the cleaning brush is fixed on the transmission chain, and when the cleaning brush moves along with the transmission chain, the cleaning brush can clean the pool wall of the second pool body along the length direction of the pool wall of the second pool body.
Optionally, the cleaning brushes are distributed along the height direction of the pool walls of the two pool bodies;
the cleaning unit further comprises rails distributed along the length direction of the tank wall of the second tank body, travel switches are respectively arranged at two ends of the rails, and the travel switches are used for triggering the motor to be powered off and change the running direction when the cleaning brush is contacted;
the cleaning brush is mounted to the rail.
Optionally, the domestic sewage recycling carbon sink system further comprises a blocking rope; wherein the blocking rope is a comb type blocking rope;
the duckweed bioconversion area in the second pond body is provided with the barrier rope.
Optionally, the domestic sewage recycling carbon sink system further comprises a first connecting pipe and a second connecting pipe, wherein the first pond body is connected with the duckweed bioconversion area of the second pond body through the first connecting pipe; the duckweed utilization area of the second pond body is connected with the digestion pond through the second connecting pipe.
Optionally, the duckweed utilization area comprises at least one culture pond, the culture pond is provided with a water inlet, and a water drain gate is arranged in the water inlet; the water body and duckweed in the duckweed bioconversion area flow into the duckweed utilization area through the water inlet.
Optionally, a bracket is arranged in the culture pond, and reed mats are paved on the bracket;
intercepting duckweed by the reed mat when the duckweed enters the duckweed utilization area.
Optionally, the volume of the second tank body is not less than 10-20 times of the daily water quantity of the system.
The invention has the technical effects that:
in the embodiment of the application, the pretreated domestic sewage exists in the form of nutrient solution after flowing into the domestic sewage recycling carbon sink system. By establishing dense biological communities in the sunlight shed digestion units and the digestion tanks, organic matters and other eutrophic resources in domestic sewage are converted into controllable initial nutrient resources in the biosphere by utilizing biological relations, and then the nutrient substances are brought into natural ecological circulation again by a biological system, so that a stable and balanced biological relation is formed by artificial intervention. The sunlight shed digestion unit in the system can also be provided with a fish and vegetable symbiotic system to achieve good effect.
Therefore, the domestic sewage recycling carbon sink system not only solves the problems of rural domestic sewage discharge and black and odorous problems of the sewage receiving pits from an ecological perspective, but also recycles the domestic sewage to form biological carbon sinks, generates considerable economic value, finally discharges water bodies through the digestion tanks, is relatively barren in nutrition, can be used for greening agriculture and forestry irrigation and the like, and has a relatively wide application prospect.
Drawings
FIG. 1 is a schematic diagram of a domestic sewage recycling carbon sink system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second tank of a domestic sewage recycling carbon sink system according to an embodiment of the present invention;
FIG. 3 is a top view of a second tank of a domestic wastewater recycling carbon sink system according to an embodiment of the present invention;
FIG. 4 is a schematic view of a cultivation pond of a domestic sewage recycling carbon sink system according to an embodiment of the present invention;
fig. 5 is a schematic view of a tank wall of a second tank of the domestic sewage recycling carbon sink system according to an embodiment of the present invention.
In the figure: 1. a first tank body; 2. a digestion tank; 3. a second cell body; 31. a duckweed bioconversion region; 32. a duckweed utilization region; 321. a culture pond; 322. a water inlet; 33. a wing plate; 34. a web; 35. glass; 36. a cushion layer; 4. a shed body; 41. a vent; 51. a water pump; 6. a circulation pipe; 71. a motor; 72. a transmission rod; 73. a drive chain; 74. a cleaning brush; 8. a blocking rope; 91. a first connection pipe; 92. a second connection pipe; 10. a bracket; 11. reed mat; 12. and a pressure pump.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The features of the terms "first", "second", and the like in the description and in the claims of this application may be used for descriptive or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
According to one aspect of the present invention, referring to fig. 1 to 5, there is provided a domestic sewage recycling carbon sink system including a negative pressure oxygenation unit, a digestion tank 2 and a solar greenhouse digestion unit.
Specifically, the negative pressure oxygenation unit comprises a first tank body 1; the first tank 1 is used for containing pretreated domestic sewage and pumping oxygen into the pretreated domestic sewage to meet the ecological cycle requirement of the duckweed bioconversion area 31. An open water body is arranged in the digestion tank 2, and aquatic organisms are cultured in the digestion tank 2.
Further specifically, a preset distance is formed between the digestion tank 2 and the solar greenhouse digestion unit, and meanwhile, a preset height difference is formed between the negative pressure oxygenation unit and the solar greenhouse digestion unit, so that the water body in the first tank body is conveyed into the second tank body under the action of negative pressure; the sunlight shed digestion unit comprises a second pool body 3 and a shed body 4 covered above the second pool body 3, wherein the shed body 4 is used for adjusting the temperature of the second pool body 3 to be at least a first preset temperature so as to meet the needs of organisms in the second pool body 3; the second pond body 3 is provided with a duckweed bioconversion area 31 and a duckweed utilization area 32, the duckweed bioconversion area 31 is planted with duckweed and forms a microorganism group on the duckweed root system, and the duckweed utilization area 32 is cultivated with herbivores taking duckweed as food; wherein the body of water and duckweed from the duckweed bioconversion region 31 may flow into the duckweed utilization region 32.
In the duckweed bioconversion region 31, a highly dense population of microorganisms can be automatically formed using the duckweed root system. Because duckweed has the capability of rapid absorption and efficient decomposition, the duckweed bioconversion area 31 has a complete digestion and decomposition system, so that the nutrients in the domestic sewage can be rapidly and efficiently utilized, and the rapid absorption and growth requirements of duckweed are ensured. After the pretreated domestic sewage is discharged into the duckweed bioconversion area 31, the small-particle organic matters which are not decomposed in the nutrient substances in the domestic sewage are engulfed by micro-living animals such as small-sized metazoans, fleas and the like in the duckweed bioconversion area 31, and the large-particle organic matters which are not decomposed in the nutrient substances are deposited at the water bottom and are engulfed by the snails and the clams in the duckweed bioconversion area 31, so that the generation of bottom mud is inhibited or reduced. And part of the nutrient substances are decomposed into soluble nutrient substances and absorbed by algae and duckweed. Thus, the duckweed bioconversion zone 31 is capable of rapidly and efficiently absorbing and utilizing nutrients in domestic sewage.
The pretreated domestic sewage is discharged into the first tank body 1 for oxygenation, and sequentially enters the digestion tank 2 through the duckweed bioconversion area 31 and the duckweed utilization area 32; wherein in the duckweed bioconversion zone 31, microbiota formed by the duckweed root system can utilize nutrients in domestic sewage; in the digestion tank 2, the organic particles which are not decomposed are ingested by the snails and mussels in the aquatic organisms, and the microorganisms which flow in from the sunlight shed digestion unit serve as the bait for the fishes in the aquatic organisms.
The pretreatment of the domestic sewage comprises the steps of enabling the domestic sewage to pass through a plurality of aeration boxes with different aeration intensities and combining with a fungus bed, so that nutrient substances in the domestic sewage are decomposed into nutrient substances with small molecular weight which can be absorbed by organisms, and the nutrient substances can be absorbed by plants at high speed and high efficiency. So as to be better absorbed by organisms, and is enriched in organisms with higher grades through ecological chain migration, conversion and gradual energy transfer and conversion, thereby achieving the function of carbon sink. The pretreated domestic sewage becomes nutrient solution which can be absorbed by plants at high speed and high efficiency, and can be fully digested, absorbed and utilized by the second tank body 3.
In the embodiment of the application, the pretreated domestic sewage exists in the form of nutrient solution after flowing into the domestic sewage recycling carbon sink system. By establishing dense biological communities in the sunlight shed digestion units and the digestion tanks 2, organic matters and other eutrophication resources in domestic sewage are converted into controllable initial nutrient resources in the biosphere by utilizing biological relations, and then the nutrient substances are brought into natural ecological circulation again through a biological system, so that a stable and balanced biological relation is formed by artificial intervention. The sunlight shed digestion unit in the system can also be provided with a fish and vegetable symbiotic system to achieve good effect.
Therefore, the domestic sewage recycling carbon sink system not only solves the problems of rural domestic sewage discharge and black and odorous problems of the sewage receiving pits from an ecological perspective, but also recycles the domestic sewage to form biological carbon sinks, generates considerable economic value, finally discharges water bodies through the digestion tanks, is relatively barren in nutrition, can be used for greening agriculture and forestry irrigation and the like, and has a relatively wide application prospect.
As a large amount of soluble nutrient substances are contained in the water flowing into the sunlight shed digestion unit from the first tank body 1, and microorganisms such as algae are manufactured to adapt to the growing environment by adjusting the nutrition proportion, the algae are propagated in a large amount in the second tank body 3, so that the requirement of dissolved oxygen in the whole tank is effectively met.
Illustratively, the digester 2 is a large area of open body of water. Fish are cultivated in the digestion tank 2, and snails and mussels are cultivated at the bottom of the digestion tank. Organic particles which are not decomposed in time are deposited on the water bottom of the digestion tank 2 and are swallowed by snails and mussels, so that the generation of sediment is inhibited or reduced. Meanwhile, a large amount of flea and other microorganisms flowing into the digestion tank 2 from the duckweed bioconversion area 31 provide abundant and large amounts of baits for fish.
Optionally, referring to fig. 1, the negative pressure oxygenation unit further includes a water pump 51 and a circulation pipe 6, wherein the water pump 51 is disposed in the second tank 3; one end of the circulating pipe 6 is connected with the output end of the water pump 51, and the other end of the circulating pipe is connected with the first tank body 1;
the water pump 51 is used for pumping the water body in the second tank body 3 into the first tank body 1 through the circulating pipe 6.
In the above embodiment, when the amount of water in the first tank 1 is insufficient, the water in the second tank 3 is discharged into the first tank 1 through the water pump 51 and the circulation pipe 6 to maintain the normal operation of the negative pressure oxygenation unit. Meanwhile, the temperature of water in the second tank body 3 is proper, and the water circularly enters the first tank body 1, so that heat resources can be reserved, and the temperature requirement in the biological growth environment can be met.
Alternatively, referring to fig. 5, the sunny side wall of the second tank body 3 is constructed by T-shaped track steel and glass 35;
the T-shaped track steel comprises a wing plate 33 and a web 34, the glass 35 is supported on the web 34, and a buffer cushion layer 36 is arranged between the web 34 and the glass 35; the surface of the glass 35 is flush with the surface of the web 34, and the surface of the glass 35 and the surface of the web 34 together form the inner surface of the pool wall. For example, the cushion layer 36 is a rubber strip, which not only ensures the safety of the T-shaped rail steel and the glass 35, but also helps to improve the water resistance of the tank wall of the second tank 3.
In the above embodiment, the surface of the glass 35 is flush with the surface of the web 34, which aids in cleaning the surface of the glass 35 to maintain the light transmittance of the glass 35. The high light transmittance of the glass 35 not only effectively solves the problem of insufficient light at the bottom of the water body and provides a three-dimensional growth environment for algae microorganisms, but also ensures that the whole water body has a higher dissolved oxygen state, thereby ensuring good growth of aerobic organisms and microorganisms in the environment.
Thereby better satisfying the biological demands in the second tank 3.
The wall of the second tank 3 in the sunny position is constructed from, for example, T-rail steel and glass 35.
In one embodiment, a supporting and fixing device is arranged on the outer side of the tank wall of the second tank body 3 so as to ensure the pressure resistance of the glass 35 wall surface and prevent the glass 35 wall surface from deforming.
Optionally, referring to fig. 2, the domestic sewage recycling carbon sink system further comprises a cleaning unit;
the cleaning unit comprises a motor 71, a bevel gear, a transmission rod 72, a transmission chain 73 and a cleaning brush 74;
the vertical transmission rod 72 is positioned at the inner side of one end of the tank wall of the second tank body 3, and the motor 71 drives the transmission rod 72 to rotate through the bevel gear so as to drive the transmission chain 73 to move; the cleaning brush 74 is fixed to the transmission chain 73, and the cleaning brush 74 can clean the wall of the second tank 3 along the length direction of the wall of the second tank 3 when moving along with the transmission chain 73.
In the above embodiment, the surface of the glass 35 can be efficiently cleaned by the cleaning unit to ensure high light transmittance of the glass 35.
Optionally, the cleaning brushes 74 are distributed along the height direction of the tank walls of the two tank bodies;
the cleaning unit further comprises rails distributed along the length direction of the sunny tank wall of the second tank body 3, and travel switches are respectively arranged at two ends of the rails and used for triggering the motor 71 to be powered off and change the running direction when the cleaning brush 74 contacts, so that the cleaning brush 74 can be better prevented from striking the tank walls at two sides of the second tank body 3;
the cleaning brush 74 is mounted to the rail.
In the above embodiment, the motor 71 can indirectly drive the cleaning brush 74 to move along the rail, thereby better securing the cleaning effect of the cleaning brush 74.
Illustratively, the cleaning brush 74 automatically works once to twice daily. The motor 71 adopts a high-proportion needle swinging motor 71 or adopts a variable frequency control motor 71, and the working speed of the cleaning brush 74 is adjusted through the motor 71 so as to ensure the cleaning effect of the cleaning brush 74.
Optionally, referring to fig. 2 and 3, the domestic sewage recycling carbon sink system further comprises a barrier rope 8; wherein the blocking rope 8 is a comb type blocking rope; the comb type blocking rope is a pulling net with gaps, and a part of the duckweed collected by the pulling net is remained like a comb;
the duckweed bioconversion area 31 in the second pond body 3 is provided with the barrier rope 8.
In the above embodiment, the comb-type barrier rope can collect duckweed and leave a part of duckweed in the comb as seed for long-term propagation, so that the growth of duckweed can be effectively kept young.
In one embodiment, the height of the first tank body 1 is higher than that of the second tank body 3, so that a negative pressure state is formed in the first tank body 1, water in the first tank body 1 can flow into the second tank body 3 more smoothly, and the energy-saving effect is good.
Optionally, referring to fig. 1, the domestic sewage recycling carbon sink system further comprises a first connecting pipe 91 and a second connecting pipe 92, wherein the first pond body 1 is connected with the duckweed bioconversion area 31 of the second pond body 3 through the first connecting pipe 91; the duckweed utilization region 32 of the second pond body 3 is connected with the digestion pond 2 through the second connecting pipe 92.
In the above embodiment, the connection between the first tank 1 and the second tank 3 and the connection between the second tank 3 and the digestion tank 2 are very simple.
Optionally, referring to fig. 3 and 4, the duckweed utilization area 32 includes at least one cultivation pond 321, the cultivation pond 321 is provided with a water inlet 322, a water drain gate is installed in the water inlet 322, and a plurality of cultivation ponds 321 are mutually communicated; the body of water and duckweed from the duckweed bioconversion region 31 flows into the duckweed utilization region 32 through the water inlet 322. This helps control the flow of water and duckweed from the duckweed bioconversion region 31 into the duckweed utilization region 32.
Optionally, a support 10 is disposed in the culture pond 321, and a reed mat 11 is laid on the support 10; for example, the rack 10 may be a transverse grid;
the duckweed is intercepted by the reed mat 11 when entering the duckweed utilization area 32.
In the above embodiment, the walls of the pond 321 are above the level of the duckweed bioconversion zone 31, and the reed mat 11 helps to intercept duckweed after it has flowed with the water into the duckweed utilization zone 32. Duckweed serves as a food for aquatic organisms that are bred in duckweed utilization area 32. The pressure pump 12 is arranged in the culture pond 321 to prevent the water surface in the culture pond 321 from exceeding the reed mat 11 to cause biological inadaptation, and meanwhile, the water body in the culture pond 321 is pumped to the digestion pond 2 through the pressure pump 12. For example, white jade snails are cultivated in the duckweed utilization region 32.
Optionally, the volume of the second tank body is not less than 10-20 times of the daily water quantity of the system. This helps the nutrient substances in the domestic sewage to be digested and decomposed by the second tank 3, and also helps the microorganisms flowing from the second tank 3 into the digestion tank 2 to be fully utilized by the digestion tank 2.
Illustratively, the distance between the sunlight greenhouse digestion unit and the digestion tank 2 is greater than 1.5 meters, and a buffer heat-insulating layer is arranged on the periphery of the middle second tank body 3 so as to prevent the sunlight greenhouse digestion unit from being damaged by the freezing of soil layers in winter.
For example, the sunlight greenhouse digestion unit is a greenhouse, and the ventilation opening 41 arranged on the greenhouse body 4 is used for adjusting the temperature in the sunlight greenhouse digestion unit so as to meet the living needs of the organisms in the second pool body 3.
In a specific embodiment, after the original black and odorous pit is disinfected, the reaction state in the water body is changed, the nutrition proportion is adjusted through human intervention, and the ph value is adjusted, so that an environment suitable for algae growth is built, and the water body is changed into an aerobic state. For example, the oxidation-reduction potential is adjusted to 100mv+ while aeration is maintained in its aerobic state. The rest facilities of the system are built while the black and odorous pit is regulated.
The pretreated domestic sewage flows into the second tank body 3 through the negative pressure oxygenation unit, the water body after passing through the negative pressure oxygenation unit contains a certain amount of dissolved oxygen, and contains a large amount of soluble nutrients, and the water body, the dissolved oxygen and the soluble nutrients enter the duckweed bioconversion area 31 together. Since the duckweed root system of the duckweed bioconversion area 31 automatically forms a highly dense microorganism population, the nutrients in the domestic sewage can be utilized rapidly and efficiently. For example, small, undissolved particulate organic matter is phagocytized and decomposed by small metazoan snails, fleas, etc.; simple organic matters which are not phagocytized and remain are decomposed into soluble nutrient substances which are absorbed by algae and duckweed. The glass 35 pool wall of the second pool body 3 has high light transmittance, so that the problems of insufficient light at the bottom of the water body and the like are effectively solved, algae proliferate at a high speed in a three-dimensional growth environment in the duckweed bioconversion area 31, and rich baits are provided for micro-living animal water fleas and the like while the aerobic environment of the water body is maintained.
The water body of the duckweed bioconversion area 31 flows into the duckweed utilization area 32 from the water inlet 322, and the plurality of culture ponds 321 of the duckweed utilization area 32 are communicated through pipelines. A pressure pump 12 is arranged below the transverse grid, and an intelligent water level controller is connected with the pressure pump 12 to control the water surface in the culture pond 321 not to exceed the reed mat 11 so as not to cause biological inadaptation. White jade snails are cultivated in the cultivation pool 321 in the embodiment. The water inflow amount into the culture pond 321 through the water inlet 322 every day is adjusted according to the quantity of the snails and the feeding amount of the snails. For example, water inlet 322 is 5cm below the water surface of duckweed bioconversion zone 31.
Furthermore, an aeration device is arranged in the digestion tank 2 and the duckweed bioconversion area 31, and when the dissolution is lower than 2mg/L, the aeration device is opened to supplement dissolved oxygen, so that the normal growth of organisms in the water body is prevented from being influenced by the too low dissolved oxygen.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (10)
1. A domestic sewage recycling carbon sink system, comprising:
the negative pressure oxygenation unit comprises a first tank body;
the digestion tank is internally provided with an open water body, and aquatic organisms are cultured in the digestion tank;
the sunlight shed digestion unit is used for forming a preset distance between the digestion tank and the sunlight shed digestion unit; the sunlight shed digestion unit comprises a second pool body and a shed body covered above the second pool body, wherein the shed body is used for adjusting the temperature of the second pool body to be at least a first preset temperature; the second pool body is provided with a duckweed bioconversion area and a duckweed utilization area, the duckweed bioconversion area is planted with duckweed, a microorganism group is formed on the root system of the duckweed, and the duckweed utilization area is cultivated with a herbivore taking the duckweed as food; wherein the water body and duckweed of the duckweed bioconversion region can flow into the duckweed utilization region;
the pretreated domestic sewage is discharged into the first tank body for oxygenation, and sequentially passes through the duckweed bioconversion area and the duckweed utilization area to enter the digestion tank; wherein, in the duckweed bioconversion area, the microbiota formed by the duckweed root system can utilize the nutrient substances in the domestic sewage; in the digestion tank, the organic particles which are not decomposed are swallowed by the snails and the mussels in the aquatic organisms, and the microorganisms which flow in from the sunlight shed digestion units are used as the baits for the fishes in the aquatic organisms.
2. The domestic sewage recycling carbon sink system according to claim 1, wherein the negative pressure oxygenation unit further comprises a water pump and a circulating pipe, and the water pump is arranged in the second tank body; one end of the circulating pipe is connected with the output end of the water pump, and the other end of the circulating pipe is connected with the first tank body;
the water pump is used for pumping the water body in the second tank body into the first tank body through the circulating pipe.
3. The domestic sewage recycling carbon sink system according to claim 1, wherein the tank wall of the second tank body is constructed by T-shaped rail steel and glass;
the T-shaped track steel comprises wing plates and a web plate, the glass is supported on the web plate, and a buffer cushion layer is arranged between the web plate and the glass; the surface of the glass is flush with the surface of the web, and the surface of the glass and the surface of the web together comprise the inner surface of the pool wall.
4. The domestic sewage recycling carbon sink system of claim 3, further comprising a cleaning unit;
the cleaning unit comprises a motor, a bevel gear, a transmission rod, a transmission chain and a cleaning brush;
the vertical transmission rod is positioned at the inner side of one end of the tank wall of the second tank body, and the motor drives the transmission rod to rotate through the bevel gear so as to drive the transmission chain to move; the cleaning brush is fixed on the transmission chain, and when the cleaning brush moves along with the transmission chain, the cleaning brush can clean the pool wall of the second pool body along the length direction of the pool wall of the second pool body.
5. The domestic sewage recycling carbon sink system according to claim 4, wherein the cleaning brushes are distributed along the height direction of the tank walls of the two tank bodies;
the cleaning unit further comprises rails distributed along the length direction of the tank wall of the second tank body, travel switches are respectively arranged at two ends of the rails, and the travel switches are used for triggering the motor to be powered off and change the running direction when the cleaning brush is contacted;
the cleaning brush is mounted to the rail.
6. The domestic sewage recycling carbon sink system of claim 1, further comprising a barrier wire; wherein the blocking rope is a comb type blocking rope;
the duckweed bioconversion area in the second pond body is provided with the barrier rope.
7. The domestic sewage recycling carbon sink system of claim 1, further comprising a first connecting pipe and a second connecting pipe, wherein the first pond body is connected with the duckweed bioconversion zone of the second pond body through the first connecting pipe; the duckweed utilization area of the second pond body is connected with the digestion pond through the second connecting pipe.
8. The domestic sewage recycling carbon sink system according to claim 1, wherein the duckweed utilization area comprises at least one cultivation pond, the cultivation pond is provided with a water inlet, and a water discharge gate is arranged in the water inlet; the water body and duckweed in the duckweed bioconversion area flow into the duckweed utilization area through the water inlet.
9. The domestic sewage recycling carbon sink system according to claim 8, wherein a bracket is arranged in the culture pond, and reed mats are paved on the bracket;
intercepting duckweed by the reed mat when the duckweed enters the duckweed utilization area.
10. The domestic sewage recycling carbon sink system according to claim 1, wherein the volume of the second tank body is not less than 10-20 times of the amount of water entering the system every day.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311803742.3A CN117466445B (en) | 2023-12-26 | 2023-12-26 | Domestic sewage resource carbon sink system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311803742.3A CN117466445B (en) | 2023-12-26 | 2023-12-26 | Domestic sewage resource carbon sink system |
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| CN117466445B CN117466445B (en) | 2024-04-23 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137625A (en) * | 1990-12-28 | 1992-08-11 | Wolverton Billy C | Aquatic plant/microbial water purification system |
| CN103947529A (en) * | 2014-05-12 | 2014-07-30 | 中国科学院成都生物研究所 | Method for simultaneously improving yield of starch and crude protein of duckweed and removal rate of nitrogen and phosphorus in sewage |
| CN218931857U (en) * | 2022-12-16 | 2023-04-28 | 笛东规划设计(北京)股份有限公司 | Pollutant purifying equipment for ecological seed culture circulating farm |
-
2023
- 2023-12-26 CN CN202311803742.3A patent/CN117466445B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137625A (en) * | 1990-12-28 | 1992-08-11 | Wolverton Billy C | Aquatic plant/microbial water purification system |
| CN103947529A (en) * | 2014-05-12 | 2014-07-30 | 中国科学院成都生物研究所 | Method for simultaneously improving yield of starch and crude protein of duckweed and removal rate of nitrogen and phosphorus in sewage |
| CN218931857U (en) * | 2022-12-16 | 2023-04-28 | 笛东规划设计(北京)股份有限公司 | Pollutant purifying equipment for ecological seed culture circulating farm |
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| CN117466445B (en) | 2024-04-23 |
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