CN220012400U - Sewage treatment system for sewage treatment by applying film glass sunlight greenhouse - Google Patents

Abstract

The utility model provides a sewage treatment system for applying a film glass sunlight greenhouse to sewage treatment, and relates to the technical field of sewage treatment. The sewage treatment system comprises a sewage treatment unit, a wetland unit and a sunlight greenhouse, wherein the sewage treatment unit comprises a tank body, and an adjusting tank, a hydrolytic acidification tank, a distribution tank, an aerobic tank and a sedimentation tank which are formed at the top of the tank body and are sequentially communicated; the wetland unit comprises a plurality of water storage lattices with an open top, the water storage lattices are sequentially communicated, and the water storage lattices positioned at the front end are communicated with the sedimentation tank; the sunlight greenhouse comprises a glass cover and a polymer film attached to the inner side surface of the glass cover, and the glass cover is built above the sewage treatment unit and the wetland unit. The system can effectively ensure the normal and efficient operation of the sewage treatment system and the normal living growth of various aquatic organisms in the wetland unit under the condition that other energy consumption and temperature increase modes are not used, thereby meeting the requirements of sewage treatment reaching standards.

Description

Sewage treatment system for sewage treatment by applying film glass sunlight greenhouse

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment system for applying a film glass sunlight greenhouse to sewage treatment.

Background

At present, the small domestic sewage treatment facilities for villages and towns in the north generally have the problem that the treated water outlet index exceeds standard because the water temperature of the water entering in low-temperature seasons in winter is low, the activity of flora is poor and the biochemical process cannot be normally carried out. In recent years, as one of the main technical processes of village and town domestic sewage treatment systems, in northern areas, due to climate reasons, only the wetland type of the subsurface flow wetland unit below a frozen layer can be adopted, and the temperature in the low-temperature period is basically about 6 ℃, so that the normal treatment process cannot be carried out due to low temperature, and meanwhile, after the phenomena of high later operation and maintenance difficulty, blockage and the like of the deep subsurface flow wetland occur, a very good solution is basically not available. Meanwhile, the northern rural small-sized domestic sewage treatment facility adopts an underground integrated treatment device, AO processes in various structures and AO process and wetland units as main sewage treatment process technologies. In any mode of treatment system, the biochemical effect is poor due to low water temperature in low-temperature seasons in northern areas, so that the treatment system is the most main cause of the unqualified treatment water quality in northern winter, and is also a bottleneck that the treatment of domestic sewage in northern villages and towns is difficult to stably and continuously reach the standard. In the prior art, in order to meet the temperature required by the sewage treatment process, various greenhouse facilities are adopted as heating and heat preservation measures, and mainly comprise: galvanized steel structure frame + sunlight plate structure greenhouse, galvanized steel structure frame + double-deck cavity glass structure's modern greenhouse. The sunlight plate structure greenhouse has good heat preservation and heating effects, but the sunlight plate has short service life, is easy to yellow to cause light transmittance reduction and has weak structure; the hollow glass greenhouse has good lighting effect, but has high heat conduction coefficient and poor comprehensive temperature increasing and preserving performance, and particularly has large temperature drop amplitude in the greenhouse at night, and needs to be matched with temperature increasing equipment with higher energy consumption to maintain normal temperature.

The inventor researches and discovers that the existing sewage treatment system has the following defects:

the energy consumption is low and the sewage treatment water quality reaches the standard, namely, the sewage treatment is not up to the standard due to the lower environmental temperature in the sewage treatment process under the condition of not adding additional heating energy consumption.

Disclosure of Invention

The utility model aims to provide a sewage treatment system with a film glass sunlight greenhouse applied to sewage treatment, which can effectively ensure the normal and efficient operation of the sewage treatment system and the normal living growth of various aquatic organisms in a wetland unit under the condition that other energy consumption and temperature increase modes are not used, thereby meeting the requirement that sewage treatment reaches the standard.

Embodiments of the present utility model are implemented as follows:

the utility model provides a sewage treatment system for applying a film glass sunlight greenhouse to sewage treatment, which comprises:

the sewage treatment unit comprises a tank body, a regulating tank, a hydrolysis acidification tank, a distribution tank, an aerobic tank and a sedimentation tank which are formed at the top of the tank body and are sequentially communicated; the wetland unit comprises a plurality of water storage lattices with an open top, the water storage lattices are sequentially communicated, and the water storage lattice at the front end is communicated with the sedimentation tank; the sunlight greenhouse comprises a glass cover and a polymer film attached to the inner side surface of the glass cover, and the glass cover is built above the sewage treatment unit and the wetland unit.

In an alternative embodiment, the sewage treatment unit further comprises a first return pipe and a second return pipe, wherein two ends of the first return pipe are respectively communicated with the sedimentation tank and the regulating tank, so that water in the sedimentation tank flows back to the regulating tank; and two ends of the second return pipe are respectively communicated with the regulating reservoir and a water storage grid positioned at the rear end of the plurality of water storage grids, so that water in the water storage grid at the rear end flows back to the regulating reservoir.

In an alternative embodiment, the plurality of water storage grids are arranged in series, and two adjacent water storage grids are communicated; the water storage grids at the head end of the plurality of water storage grids are communicated with the water passing holes of the sedimentation tank; the water storage grids at the tail end of the plurality of water storage grids are communicated with the regulating tank through the second return pipe.

In an alternative embodiment, the openings of the distribution tank, the aerobic tank and the sedimentation tank are all provided with grid cover plates.

In an alternative embodiment, the first volcanic layer, the calcium carbonate porous filter layer and the second volcanic layer are sequentially stacked from bottom to top in the water storage grid.

In an alternative embodiment, the first volcanic formation is provided with a thickness of 80mm to 120mm; the thickness of the calcium carbonate porous filter material layer is 1700-1900 mm, and the particle size of the calcium carbonate porous filter material layer is 30-80 mm; the thickness of the second volcanic rock layer is set to be 80-120 mm.

In an alternative embodiment, the sunlight greenhouse further comprises a mounting framework, the mounting framework is fixed on the tank body, and the glass cover is fixed on the outer side of the mounting framework.

In an alternative embodiment, the glass cover comprises a top hollow glass plate and a plurality of side hollow glass plates, the side hollow glass plates are spliced end to end in sequence to form an annular structure, one end of the annular structure is connected with the tank body, and the other end of the annular structure is connected with the top hollow glass plate; and the inner side surface of each side hollow glass plate is adhered with a polymer film.

In an alternative embodiment, a sunshade net is provided above the top hollow glass panel.

In an alternative embodiment, the polymer film is provided as a PET polymer film.

The embodiment of the utility model has the beneficial effects that:

in summary, the film glass solar greenhouse provided by the embodiment is applied to a sewage treatment system for sewage treatment, and can ensure that the sewage temperature of the sewage treatment system meets the normal activity of microorganisms in the system and that various microorganisms, aquatic plants, aquatic animals and other plants in the film glass greenhouse can normally grow under the condition of extremely low temperature of-27 ℃ which is the lowest temperature at night in winter. Specifically, the film glass is formed by adopting a high-light-transmittance and low-heat-conduction polymer film to attach the inner surface of the glass cover, so that the greenhouse achieves the efficient heating and heat-preserving effects. High-transmittance film glass ensures the high-efficiency temperature increase and light increase effect of solar irradiation in the sunshine period; the low heat conduction coefficient of the polymer film reduces the heat in the greenhouse from being emitted to the outside of the greenhouse through heat conduction in the low-temperature period at night. Meanwhile, the use of the polymer film on the surface of the glass greatly increases the shock resistance of the glass cover, and effectively prolongs the service life and the use effect of the sunlight greenhouse.

Through the structural design of the wetland unit, the top of each water storage grid is open, namely each water storage grid is of an open structure, the water body surface area is large, the area of the water body which can directly receive sunlight irradiation is large, the characteristic that the specific heat of the water body is large is fully utilized, and in the daytime illumination period, solar energy is converted into heat energy through illumination radiation of sunlight on the water surface to heat sewage; and in the night low-temperature period, heat conduction and radiation are carried out in the greenhouse space by using the open large-surface-area water body, so that a heat source is provided for maintaining the greenhouse at a reasonable temperature. In the night low-temperature period, when the temperature in the sunlight greenhouse is reduced to be lower than the water temperature, the water body in Chu Shuige radiates heat into the greenhouse space in a heat conduction, infrared radiation, evaporation and other modes, so that the temperature in the sunlight greenhouse is well stabilized. So, can effectively guarantee that the temperature in the sewage treatment process satisfies the demand, sewage treatment is effectual, and sewage treatment can last up to standard.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a sewage treatment system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a sewage treatment system according to another embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the structure corresponding to FIG. 1;

fig. 4 is a schematic structural view of a film glass according to an embodiment of the present utility model.

Icon:

100-a sewage treatment unit; 110-a pool body; 120-a first return line; 130-a second return line; 140-an adjusting tank; 150-a hydrolytic acidification tank; 160-a water distribution tank; 170-an aerobic tank; 180-a sedimentation tank; 190-grid cover plate; 200-wetland units; 201-a first water lattice; 202-a second water grid; 203-a third water grid; 204-fourth water grid; 410-water storage grid; 411-a first volcanic formation; 412-a calcium carbonate porous filter layer; 413-a second volcanic formation; 414-perforated flower wall; 300-sunlight greenhouse; 310-installing a framework; 320-glass cover; 321-top hollow glass; 322-side hollow glass; 330-polymeric film; 340-sunshade net.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, in the present embodiment, a sewage treatment system for treating sewage by using a film glass solar greenhouse 300 includes a sewage treatment unit 100, a wetland unit 200 and a solar greenhouse 300, wherein the sewage treatment unit 100 includes a tank body 110, a first return pipe 120, a second return pipe 130, and an adjusting tank 140, a hydrolytic acidification tank 150, a distribution tank 160, an aerobic tank 170 and a sedimentation tank 180 formed on top of the tank body 110 and sequentially communicated. Both ends of the first return pipe 120 are respectively communicated with the sedimentation tank 180 and the regulating tank 140, so that water in the sedimentation tank 180 flows back to the regulating tank 140; two ends of the second return pipe 130 are respectively communicated with the regulating reservoir 140 and a water storage grid at the rear end of the plurality of water storage grids, so that water in the water storage grid 410 at the rear end flows back to the regulating reservoir 140. The wetland unit 200 includes a plurality of water storage lattices 410 which are sequentially communicated with each other and have an open top, and the water storage lattice 410 positioned at the front end among the plurality of water storage lattices 410 is communicated with the sedimentation tank 180. The solar greenhouse 300 includes a glass cover 320 and a polymer film 330 attached to the inner surface of the glass cover 320, and the glass cover 320 is installed above the sewage treatment unit 100 and the wetland unit 200. Referring to fig. 2, when the number of the water storage compartments 410 is four, the front water storage compartment 410 is the first water compartment 201, and the rear water storage compartment is the fourth water compartment 204.

Referring to fig. 2, the sewage treatment system provided in this embodiment works as follows:

first, sewage is lifted to the regulating reservoir 140 by the water pump, and the water quality and the water quantity are regulated by the regulating reservoir 140.

Then, sewage in the regulating tank 140 automatically flows into the hydrolysis acidification tank 150 through the water passing holes arranged on the regulating tank 140, and abundant anaerobic microbial films are distributed on the elastic bioactive filler of the anaerobic bacteria bed in the hydrolysis acidification tank 150, so that organic matters in the sewage can be captured and degraded, and macromolecular organic matters are degraded into soluble micromolecular organic matters under the action of microorganisms of the anaerobic bacteria bed, so that necessary conditions are provided for the subsequent process. Sewage in the anaerobic tank automatically flows into the distribution tank 160 through the corresponding water passing holes, the sewage in the distribution tank 160 is lifted into the aerobic tank 170 through the sewage lifting pump, aerobic degradation is carried out in the aerobic tank 170, and the aerobic bacterial bed efficiently degrades and removes organic pollutants through the microbial film on the curtain type bioactive filler under the continuous oxygen supply effect of the aeration pipe at the lower part of the aerobic bacterial bed. Sewage in the aerobic tank 170 automatically flows into the sedimentation tank 180 through a water passing hole arranged on the aerobic tank 170, and undegraded impurities in the sedimentation tank 180 are settled or suspended and isolated. A part of sewage in the sedimentation tank 180 automatically flows into the wetland unit 200 through the water passing holes arranged on the sedimentation tank 180, and a part of sewage flows back to the distribution tank 160 through the first return pipe 120 for circulation treatment. A part of the sewage passing through the wetland unit 200 is discharged out of the system, and the other part is returned to the distribution tank 160 through the second return pipe 130, so that the front-end sewage is diluted and circulated.

Meanwhile, in the running process, when sewage enters the wetland units 200, each wetland unit 200 has an open top, namely, each wetland unit 200 has an open top structure, the surface area of the open surfaces of the plurality of wetland units 200 is large, water bodies with the depth of 300mm at the upper parts of the wetland units 200 can directly receive solar heat radiation to heat, the sewage temperature in a treatment system and the indoor temperature of a greenhouse can be effectively improved in cold seasons in winter, the sewage temperature can stably reach more than 10 ℃ through field actual measurement, the indoor temperature of the greenhouse is not lower than 7 ℃ at night, and the requirements of biochemical and ecological processes are met.

It should be noted that, according to the sewage treatment target and the water quality requirement of the treated effluent, the design parameters of different technological processes are determined, and on the premise of meeting the technological process, the Wen Xiaoneng is increased to the greatest extent possible through reasonable layout and reasonable structure of the tank 110. In this embodiment, the water conservancy residence time of the regulating reservoir 140 is: the hydrolytic acidification hydraulic retention time is more than or equal to 4 hours and is as follows: and the hydraulic retention time of the aerobic tank 170 is more than or equal to 12 hours: more than or equal to 6 hours, the hydraulic retention time of the sedimentation tank 180 is as follows: more than or equal to 4 hours, etc.

Referring to fig. 1 or 2, in this embodiment, optionally, the openings of the distribution tank 160, the aerobic tank 170 and the sedimentation tank 180 are provided with a grid cover plate 190, so that the design not only has a certain heating and heat-preserving function, but also is convenient for later management and maintenance of the distribution tank 160, the aerobic tank 170 and the sedimentation tank 180. Meanwhile, elastic bioactive fillers are installed in the hydrolytic acidification tank 150 and are installed on the carbon steel structural frame. The aerobic tank 170 is internally provided with curtain type bioactive filler which is arranged on a carbon steel structural frame, and a plurality of nanometer aeration pipes with the interval of 500mm are arranged at the position about 100mm above the bottom of the aerobic tank 170.

It should be noted that, the tank body 110 adopts a cast-in-place steel concrete structure, which is convenient for construction, and has high overall structural strength and high use safety. Meanwhile, an inspection well, an equipment room and other equipment installation and arrangement platforms are arranged at corresponding positions of the tank body 110. The top, the periphery, etc. of the tank body 110 are also pre-embedded with steel structural members, the number of which is set as required, and the number of the steel structural members is not specifically limited in this embodiment, and the steel structural members are used for installing and fixing the sunlight greenhouse 300. In designing the cell body 110, the dimensions of the cell body 110 may be, but are not limited to, 20.3m long, 8.3m wide, and 2.2m deep.

Referring to fig. 1 to 3, in this embodiment, alternatively, the wetland unit 200 is an artificial structure, and the structure of each water storage compartment 410 may be set to be the same, so that the detailed structure of one water storage compartment 410 is illustrated in this embodiment to avoid redundancy of description. Each water storage grid 410 can be square, the top of each water storage grid 410 is rectangular and open, the area of the opening is consistent with the cross section area of each water storage grid 410, and the cross section is a plane perpendicular to the depth of each water storage grid 410. The first volcanic layer 411, the calcium carbonate porous filter layer 412 and the second volcanic layer 413 are laminated in the water storage grid 410 from bottom to top. Wherein the thickness of the first volcanic layer 411 is set to 80mm-120mm; the thickness of the calcium carbonate porous filter layer 412 is set to 1700mm-1900mm, and the particle diameter of the calcium carbonate porous filter layer 412 is set to 30mm-80mm; the thickness of the second volcanic layer 413 is set to 80mm to 120mm. For example, in the present embodiment, the thickness of the first volcanic formation 411 is set to 100; the thickness of the calcium carbonate porous filter layer 412 was set to 1800mm, and the particle diameter of the calcium carbonate porous filter layer 412 was set to 60mm; the thickness of the second volcanic layer 413 is set to 100mm. It is apparent that in other embodiments, the thicknesses of the first volcanic layer 411, the calcium carbonate porous filter layer 412, and the second volcanic layer 413 may also be set to other values. When the first volcanic formation 411, the calcium carbonate porous filter layer 412 and the second volcanic formation 413 are laid, the water storage lattice 410 may store water therein, and the depth of the water may be set to 200-350mm, for example, in this embodiment, 300mm.

Further, in this embodiment, the number of the water storage compartments 410 is four, the four water storage compartments 410 are sequentially connected in series, and two adjacent water storage compartments 410 are communicated through the perforated wall 414. The four water storage grids 410 can be directly formed in the tank body 110, so that the adjusting tank 140, the hydrolysis acidification tank 150, the distribution tank 160, the aerobic tank 170, the sedimentation tank 180 and the four water storage grids 410 are of an integrated structure, the structure is compact, and the overall layout is more reasonable. Wherein, two water storage grids 410 are a set of and set up side by side, are first water grid 201, second water grid 202, third water grid 203 and fourth water grid 204 in proper order, and first water grid 201 is close to sedimentation tank 180, and fourth water grid 204 is close to distribution tank 160, and second water grid 202 is located one side that first water grid 201 kept away from sedimentation tank 180 and sets up adjacent with first water grid 201, and third water grid 203 is located one side that fourth water grid 204 kept away from distribution tank 160 and sets up adjacent with fourth water grid 204. The first water grid 201 is communicated with the sedimentation tank 180, and the fourth water grid 204 is communicated with the distribution tank 160.

It should be noted that, the first volcanic layer 411, the calcium carbonate porous filter layer 412 and the second volcanic layer 413 are all existing materials directly obtained, and belong to the prior art, and the present utility model is not modified in this embodiment, but a composite layered structure is formed by combining a plurality of existing materials.

In this embodiment, optionally, the sunlight greenhouse 300 further includes a mounting frame 310, the mounting frame 310 is fixed to the steel structural member of the cell body 110, and the glass cover 320 is fixed to the outer side of the mounting frame 310. It should be appreciated that the mounting framework 310 may include columns welded to the steel structural members and beams welded to the columns or fixedly attached by fasteners such as screws. Optionally, the glass cover 320 includes a top hollow glass 321 plate and a plurality of side hollow glass 322 plates, where the plurality of side hollow glass 322 plates are spliced end to end in sequence to form an annular structure, one end of the annular structure is connected with the tank 110, and the other end is connected with the top hollow glass 321 plate. A polymer film 330 is attached to the inner surface of each side hollow glass 322 plate. It should be appreciated that in other embodiments, the backlight side of the glass cover 320 may be provided with other walls with good thermal insulation properties, such as brick walls.

Optionally, the top hollow glass 321 is provided in a folded line shape, that is, the top hollow glass 321 is formed by splicing a plurality of pieces of glass, and adjacent pieces of glass have included angles. The sunshade net 340 and the heat preservation curtain are also arranged above the top hollow glass 321, and the sunshade net 340 and the heat preservation curtain can be switched between a folding state and an unfolding state, when the sunshade net and the heat preservation curtain are in the folding state, the top hollow glass 321 is exposed, and when the sunshade curtain is in the unfolding state, the top of the top hollow glass 321 is shielded. It should be appreciated that the hollow roof glass 321 may also be provided with openable and closable skylights, which is flexible in use.

Referring to fig. 4, alternatively, the polymer film 330 may be, but is not limited to, a PET polymer film 330.PET is commonly referred to as a polyethylene terephthalate plastic, and mainly comprises polyethylene terephthalate PET and polybutylene terephthalate PET. The PET film has at least the following advantages:

(1) colorless transparent film, surface-hardened, surface hardening value: 3H-4H, the better the surface hardening, the stronger the wear resistance;

(2) the light transmittance is high, and is generally more than 90%;

(3) dimensional stability, fatigue resistance and friction resistance are good;

(4) the paint is nontoxic, strong in heat resistance and cold resistance and good in chemical resistance stability;

(5) the heat conduction coefficient is low: 0.3-0.4, the coefficient of heat conductivity of the glass is 1, indoor heat can be effectively prevented from being emitted to the outside in winter, and the data show that the heat preservation rate in winter can be improved by 15-30%;

(6) the PET film belongs to a high-toughness elastic base material, so that the external impact can be greatly reduced, and the safety performance of the glass greenhouse is effectively improved.

In other embodiments, the wastewater treatment system optionally further comprises two backup air heaters. The two 9kw standby air heaters are started and stopped in a temperature control mode and are used for coping with low temperature phenomena caused by extreme air temperature and unexpected situations. It should be understood that the number of the standby air heaters may be other numbers, which are not listed in this embodiment.

In other embodiments, the sewage treatment system may further comprise a ventilator, which may be mounted on the backlight side of the glass cover 320, and the ventilator may be capable of cooling the room during operation.

The film glass solar greenhouse 300 provided by the embodiment is applied to a sewage treatment system for sewage treatment, adopts an AO process, a unit type constructed wetland combined process mode and a film glass solar greenhouse 300 comprehensive treatment system, has high treatment efficiency and high stability, is simple and convenient to operate, manage and maintain in a later period, and can be used as a building facility of high-efficiency facility agriculture. The sewage treatment system provided by the embodiment has wide application prospect in the field of small and medium-sized domestic sewage treatment facilities in villages and towns.

It should be noted that, the sunlight greenhouse 300 provided in this embodiment may also be used as a multifunctional greenhouse for comprehensive utilization of agricultural planting, and may satisfy small and medium sewage treatment projects with various treatment scales and different treatment requirements.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A sewage treatment system for a film glass solar greenhouse for sewage treatment, comprising:

the sewage treatment unit comprises a tank body, a regulating tank, a hydrolysis acidification tank, a distribution tank, an aerobic tank and a sedimentation tank which are formed at the top of the tank body and are sequentially communicated; the wetland unit comprises a plurality of water storage lattices with an open top, the water storage lattices are sequentially communicated, and the water storage lattice at the front end is communicated with the sedimentation tank; the sunlight greenhouse comprises a glass cover and a polymer film attached to the inner side surface of the glass cover, and the glass cover is built above the sewage treatment unit and the wetland unit.

2. The wastewater treatment system of claim 1, wherein:

the sewage treatment unit further comprises a first return pipe and a second return pipe, wherein two ends of the first return pipe are respectively communicated with the sedimentation tank and the regulating tank, so that water in the sedimentation tank flows back to the regulating tank; and two ends of the second return pipe are respectively communicated with the regulating reservoir and a water storage grid positioned at the rear end of the plurality of water storage grids, so that water in the water storage grid at the rear end flows back to the regulating reservoir.

3. The wastewater treatment system of claim 2, wherein:

the water storage grids are arranged in series, and two adjacent water storage grids are communicated; the water storage grids at the head end of the plurality of water storage grids are communicated with the water passing holes of the sedimentation tank; the water storage grids at the tail end of the plurality of water storage grids are communicated with the regulating tank through the second return pipe.

4. The wastewater treatment system of claim 1, wherein:

and grid cover plates are arranged at the tank openings of the distribution tank, the aerobic tank and the sedimentation tank.

5. The wastewater treatment system of claim 1, wherein:

the first volcanic rock layer, the calcium carbonate porous filter material layer and the second volcanic rock layer are sequentially laminated in the water storage grid from bottom to top.

6. The wastewater treatment system of claim 5, wherein:

the thickness of the first volcanic rock layer is set to be 80-120 mm; the thickness of the calcium carbonate porous filter material layer is 1700-1900 mm, and the particle size of the calcium carbonate porous filter material layer is 30-80 mm; the thickness of the second volcanic rock layer is set to be 80-120 mm.

7. The wastewater treatment system of claim 1, wherein:

the sunlight greenhouse further comprises an installation framework, the installation framework is fixed on the pool body, and the glass cover is fixed on the outer side of the installation framework.

8. The wastewater treatment system of claim 1, wherein:

the glass cover comprises a top hollow glass plate and a plurality of side hollow glass plates, wherein the side hollow glass plates are spliced end to end in sequence to form an annular structure, one end of the annular structure is connected with the tank body, and the other end of the annular structure is connected with the top hollow glass plate; and the inner side surface of each side hollow glass plate is adhered with a polymer film.

9. The wastewater treatment system of claim 8, wherein:

and a sunshade net is arranged above the top hollow glass plate.

10. The wastewater treatment system of claim 1, wherein:

the polymer film is a PET polymer film.