CN218435242U - Modularized biological purification device - Google Patents

Abstract

The utility model discloses a modularization biological purification device, including a plurality of purification module, parallelly connected, series connection or superpose between a plurality of purification module are connected, and single purification module includes: the box body is internally provided with a water collecting area, a main purifying area and a water distribution area from bottom to top in sequence, hard fillers are filled in the water collecting area, and light hydrophilic filler bags are filled in the main purifying area; the water distribution pipeline is arranged in the water distribution area and is externally connected with the water inlet pipeline; air-drawing oxygen-dissolving mechanism, including air inlet tunnel, air-supply line and air-drawing pipe, air inlet tunnel horizontal distribution has the air diffusion hole on main purification district bottom and the air inlet tunnel, and the one end and the air inlet tunnel of air-supply line are linked together, and the other end communicates outside the box lateral wall, and in the vertical box body that inserts of air-drawing pipe, the bottom and the air inlet tunnel of air-drawing pipe are linked together, the top extends outside the box top as the air outlet. The device is a modularized biological purification device, can be connected in parallel and in series according to the quality index of the imported sewage, and can also be superposed according to the size of a field.

Description

Modularized biological purification device

Technical Field

The utility model relates to a sewage treatment device field, a rural sewage treatment plant of high-efficient of modularization that specifically is applicable to dispersion treatment of domestic sewage.

Background

The rural domestic sewage treatment is an important content for improving the rural living environment and assisting the rural joyful. The environmental pollution caused by domestic sewage is not only a potential safety hazard of rural water sources, but also aggravates the crisis of fresh water resources and harms the survival and development of farmers. Therefore, the method strengthens the construction of the facility for collecting, treating and recycling the domestic sewage in the rural areas, avoids the pollution of water, soil and agricultural products in the rural areas caused by the direct discharge of the domestic sewage, ensures the safety of water sources in the rural areas and the physical and mental health of farmers, is an important content for strengthening the infrastructure construction and recommending the village renovation work in the new rural area construction, and is also a problem to be urgently solved for improving the living environment in the rural areas.

The rural sewage treatment technologies adopted at home and abroad at present mainly comprise a biological contact oxidation method, an activated sludge method, a biological filter, an artificial wetland, a stabilization pond, land percolation treatment and the like. Rural domestic sewage can be divided into black water and grey water, wherein sewage with high nitrogen and phosphorus content needs to be purified through multiple filtration processes, while relatively clean domestic sewage can reach the standard only through simple filtration, and the rural domestic sewage treatment device mixes the sewage and the grey water in certain quantities for purification treatment, so that the overall purification efficiency of the device can be reduced, and the burden of a filter mechanism is increased; in addition, rural population inhabitation is dispersed, and the generated domestic sewage amount is small, the fluctuation is large, the unified collection difficulty is large, if a unified treatment device is to be established, the investment is large, and professional personnel are not convenient to set for guard and operation management due to small pollution scale; and the transportation of partial rural residential areas is inconvenient, the available installation site is not enough, and the installation and the transportation of large-size equipment devices are not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rural sewage treatment plant of high-efficient of modularization of dispersion domestic sewage treatment.

A modular biological purification apparatus comprising a plurality of purification modules connected in parallel, series or stacked, the purification modules comprising:

the water distribution and purification device comprises a box body, wherein a water collection area, a main purification area and a water distribution area are sequentially arranged in the box body from bottom to top, hard fillers are filled in the water collection area, light hydrophilic filler bags are filled in the main purification area, and a water outlet is formed in the side wall of the box body corresponding to the water collection area;

the water distribution pipeline is arranged in the water distribution area and is externally connected with a water inlet pipeline;

the air-drawing and oxygen-dissolving mechanism comprises an air inlet tunnel, an air inlet pipe and an air-drawing pipe, wherein the air inlet tunnel is horizontally distributed at the bottom of a main purification area, air diffusion holes are distributed in the air inlet tunnel, one end of the air inlet pipe is communicated with the air inlet tunnel, the other end of the air inlet pipe is communicated to the outside of the side wall of a box body, the air-drawing pipe is vertically inserted into the box body, the bottom end of the air-drawing pipe is communicated with the air inlet tunnel, and the top end of the air-drawing pipe extends out of the top of the box body as an air outlet.

The device is a modularized biological purification device, can be connected in parallel and in series according to the quality index of the imported sewage, and can also be stacked according to the size of a field. The domestic sewage reaching the standard is discharged through a water outlet at the bottom of the device, and can be circulated with a sewage pretreatment device through a biological purification device, so that a further purification effect is achieved.

The pretreated domestic sewage is uniformly sprayed on the light hydrophilic filler in the device through a water distribution pipeline at the top of the device, and the pretreated domestic sewage, oxygen collected by the unpowered draught oxygen dissolving device and microorganisms in a biofilm on the filler degrade COD, nitrogen, phosphorus and the like in water by utilizing the principle of ecological engineering. Through the light hydrophilic filler, the sewage is collected at the bottom of the device, and is further purified by microorganisms to reduce pollution load in a water body, so that the aim of reaching the standard of domestic sewage is fulfilled.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the height of the water collecting area is 300-500 mm; the height of the main purification area is 1500-2000 mm.

Optionally, the hard filler is basalt with the grain size of 30-40 mm; the light hydrophilic filling bag is a light hydrophilic filling small square block with the packaging specification of a woven mesh bag of 20-30 mm multiplied by 20-30 mm.

Optionally, the height difference between the air inlet of the air inlet pipe and the air outlet of the air pulling pipe is not less than 2000mm.

Optionally, the height difference between the air inlet of the air inlet pipe and the horizontal plane of the air inlet tunnel is 300-500 mm.

Optionally, 2 to 3 mutually parallel air inlet tunnels are arranged; the distance between the adjacent air inlet tunnels is 800-1200 mm; along the axial direction of the air inlet tunnel, the distance between the adjacent air extracting pipes is 2000-2200 mm.

Optionally, a filter screen is arranged at the air inlet of the air inlet pipe; and the air outlet of the air pulling pipe is provided with a rain-proof cap.

Optionally, the water distribution pipe includes:

the water distribution header pipe is positioned in the box body or outside the box body and is externally connected with a water inlet pipeline;

the water distribution branch pipes are horizontally distributed in the water outlet area and are communicated with the water distribution main pipe, and the distance between every two adjacent water distribution branch pipes is 600-1000 mm;

and a water distribution pipe switch valve and a water distribution pipe back flush valve which are correspondingly arranged on each water distribution branch pipe.

Optionally, the water distribution pipe switching valve is located near the joint of the water distribution branch pipe and the water distribution main pipe; the water distribution pipe back-flushing valve is positioned at the end part close to the water distribution branch pipe and far away from the water distribution main pipe.

Compared with the prior art, the utility model discloses one of following beneficial effect has at least:

(1) The anti-sewage fluctuation capacity is strong;

(2) The filler in the device has strong hydrophilicity, the strain is not easy to die and is convenient to start, and the outage time can be as long as 2-3 months;

(3) The device has no power consumption during operation, no energy consumption during the whole process of oxygenation, no medicine addition and no operation cost;

(4) The device is simple to operate, unattended and maintenance-free;

(5) The device has high sewage treatment capacity;

(6) The device is stable and reliable and has no noise;

(7) Can be combined at will according to the needs, and the construction is swift, simple, convenient.

Drawings

FIG. 1 is a schematic view of a plurality of purification modules of the present invention connected in series;

FIG. 2 is a schematic view of a plurality of purification modules of the present invention connected in parallel;

FIG. 3 is a front view of a single purification module of FIG. 1 or FIG. 2.

FIG. 4 is a top view of a single purification module of FIG. 1 or FIG. 2.

Fig. 5 is a schematic installation diagram of the single purification module wind-drawing oxygen-dissolving device in fig. 1 or fig. 2.

The reference numbers shown in the figures are as follows:

100-purification module

101-box body 102-air inlet pipe 103-air exhaust pipe

104-air inlet tunnel 105-main purification area 106-water collecting area

107-drain pipe 108-water distribution header pipe 109-water distribution branch pipe

110-water distribution pipe switch valve 111-water distribution pipe recoil valve 112-air diffusion hole

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

A modularized biological purification device is disclosed, referring to fig. 1-2, comprising a plurality of purification modules 100, wherein the plurality of purification modules 100 can be connected in series (as shown in fig. 1) or in parallel (as shown in fig. 2), and can be stacked.

The structural schematic diagram of a single purification module 100 is shown in fig. 3 to 5, and includes a box 101, a water distribution pipeline and a wind-drawing and oxygen-dissolving mechanism, wherein the box 101 is an open-type box, and the box is sequentially provided with a water collection area 106, a main purification area 105 and a water distribution area from bottom to top. Hard filler is filled in the water collection area 106, a light hydrophilic filler bag is filled in the main purification area 105, and the water distribution pipeline is installed in the water distribution area and is externally connected with the water inlet pipeline. Air draft oxygen dissolving mechanism includes air intake tunnel 104, air-supply line 102 and air draft pipe 103, air intake tunnel 104 level sets up and distributes in the bottom of main purification district 105, set up air diffusion hole 112 on the air intake tunnel 104, the one end intercommunication air intake tunnel 104 of air-supply line 102, the other end extends out the box lateral wall outside and is linked together with the box outside, the air intake of air intake pipe 102 is higher than about 300 ~ 500mm of air intake tunnel 104 place horizontal plane, air draft pipe 103 sets up to a plurality of, and all vertically insert in the box 101, the bottom and the air intake tunnel 104 of air draft pipe 103 are linked together, the top of air draft pipe 103 is as the air outlet and extend outside the box 101 top.

The pretreated domestic sewage is uniformly sprayed on the light hydrophilic filler in the device through a water distribution pipeline on the top of the device, free circulation of air from bottom to top is realized under the combined action of the temperature difference between the inside and the outside of the box body, the height difference of the main pipeline port and the chimney effect, and the circulation and the diffusion of the air in the wetland are realized through the combination of air diffusion holes on the air inlet tunnel and the diffusion potential energy of the air in the box body in the air circulation process so as to supply the oxygen consumption in the aerobic reaction.

The bottom in the box body 101 is a water collecting area 106, and the height of the water collecting area can be set to be 300-500 mm; hard filler is filled in the water collection area, and is specifically selected as the hard filler, the hard filler is basalt with the grain size of 30-40 mm, and in the water collection area, anaerobic and anoxic reactions are further carried out through a biological film on the surface of the filler, so that COD, nitrogen, phosphorus and the like in sewage are further degraded.

The side wall of the box body corresponding to the water collecting area is provided with a water outlet which is connected with a water discharge pipe 107, and the purified sewage is discharged through the water discharge pipe 107.

The main purification area 105 is arranged above the water collection area 106, the height of the main purification area can be set to be 1500-2000 mm, a light hydrophilic filling material bag is filled in the main purification area and is specifically selected as the light hydrophilic filling material bag, the light hydrophilic filling material is rock wool modified products (commercially available), the chemical performance is stable, the light hydrophilic filling material bag not only has strong water retention property, but also has excellent air permeability, the alkalinity is neutral and non-toxic, and a single filling material bag is a small square block with the size of 20-30 mm multiplied by 20-30 mm, and is filled into a box body after being filled into a large fiber woven mesh bag, so that the light hydrophilic filling material bag is suitable for the growth of microorganisms in an organic membrane and the degradation of pollutants in sewage. The filler contains a certain amount of water, a biofilm is formed on the surface of the filler, organic matters in the sewage are decomposed through microorganisms in the biofilm, and reactions such as nitrification, denitrification and the like are carried out to degrade COD, nitrogen, phosphorus and the like in the water.

Referring to fig. 1 and fig. 3, in the wind-pulling and oxygen-dissolving mechanism, 2 to 3 parallel air inlet tunnels 104 are arranged; the horizontal distance between the adjacent air inlet tunnels 104 is 800-1200 mm; both ends of each air inlet tunnel 104 are communicated with the outside of the box body through an air inlet pipe 102, air diffusion holes 112 (only indicated by a mark in the figure, actually, the air diffusion holes are distributed along the extension direction of the tunnel) are arranged on the air inlet tunnels, and a filter screen can be arranged at the air inlet of the air inlet pipe 102. As a specific arrangement of the air diffusion holes, the hole diameter of the air diffusion holes may be set to 8 to 15mm, and the hole pitch may be set to 20 to 30mm.

In the hydrophilic filler bag layer of light in the vertical inserted box of exhaust column 103, outside bottom intercommunication water inlet tunnel, the top extended to the top of box, interval between the adjacent exhaust column can set up to 2000mm in the axial of air inlet tunnel 104, and the air outlet of exhaust column sets up rain-proof cap. The height difference between the air inlet of the air inlet pipe and the air outlet of the air pulling pipe is not less than 2000mm.

The water distribution pipes are installed in the water distribution area, as shown in fig. 2, the water distribution pipes include a water distribution header pipe 108 and a plurality of water distribution branch pipes 109, the water distribution header pipe 108 is located in the tank body or outside the tank body and is externally connected with the water inlet pipe, as shown in the embodiment shown in fig. 4, the water distribution header pipe is located in the tank body; the water distribution branch pipes 109 are horizontally distributed in the water distribution area and communicated with the water distribution header pipe 108, the distance between adjacent water distribution branch pipes is 800-1000 mm, the lower side of each water distribution branch pipe is fully distributed with phi 6 small holes, and the material of the pipeline is UPVC material. Each water distribution branch pipe is provided with a water distribution pipe switch valve 110 and a water distribution pipe back flush valve 111, and the water distribution pipe switch valve 110 is positioned close to the joint of the water distribution branch pipe 109 and the water distribution header pipe 108; a distributor backwash valve 111 is located near the end of distributor branch 109 distal from distributor main 108.

The utility model discloses a theory of operation:

the process adopts a biomembrane method, when in use, the original sewage needs to be pretreated (comprising regulation, anaerobism and precipitation), the sewage is distributed to water distribution branch pipes through a water distribution main pipe after the pretreatment, and is uniformly distributed on a light hydrophilic filling material bag in a box body through water distribution small holes, the filling material in the light hydrophilic filling material bag has strong water retention property and excellent air permeability, the filling material is used as a microorganism adhesion growth carrier to form a biomembrane, the moisture and the air contained in the light hydrophilic filling material bag ensure that the microorganisms in the biomembrane survive for a long time, the free circulation of the air from bottom to top is realized through the temperature difference inside and outside the box body, the height difference between an air inlet and an air draft pipe of an air draft oxygen dissolving device and the combined diffusion potential energy of the air inside the box body in the air circulation process, the air flows and diffuses inside the wetland through the air diffusion holes on an air draft oxygen dissolving device air inlet tunnel to supply the oxygen consumption of the microorganisms, the sewage reaches the hard water collection part after passing through the light hydrophilic filling material bag, the pollutants in the sewage continue to be discharged through a water drainage pipe 7 by taking the filling material as the growth carrier to degrade the pollutants in the sewage.

The utility model discloses can carry out parallelly connected and series connection equipment through the design water yield and the pollutant concentration of sewage, also can flow back preprocessing device and carry out the manifold cycles for reach the design and discharge the requirement.

Example 1

In a preferred embodiment, the box 101 has a length, a width and a height of 4m × 2.4m × 2m, is designed in a standard modular manner, and can be horizontally installed and stacked; the top of the box 101 is provided with a water distribution pipeline, the water distribution pipeline is composed of a water distribution main pipe 108, a water distribution branch pipe 109, a water distribution pipe switch valve 110 and a water distribution pipe backflushing valve 111, the water distribution branch pipe 109 is a DN50 UPVC pipeline, the lower half pipeline of the pipeline is fully distributed with phi 6 small holes, and the pretreated sewage is uniformly distributed on the light hydrophilic filler bags arranged in the box through the small holes on the water distribution pipeline. The air-drawing and oxygen-dissolving device comprises an air inlet pipe 102, an air-drawing pipe 3 and an air inlet tunnel 104, wherein the air-drawing pipe 103 is connected with the air inlet tunnel 104, the top end of the air-drawing pipe extends out of the top of the box body, the air inlet tunnel 104 is a tunnel-type shell, a plurality of air diffusion holes 112 are formed in the surface of the shell, a water collection part of the box body is arranged below the air inlet tunnel 104, hard fillers are arranged in the water collection part, the hard fillers are basalt particles with the particle size of 30-40 mm, a water outlet pipe 107 is arranged outside one side of the water collection part of the box body 1, and treated sewage is discharged through the water outlet pipe 107.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (8)

1. A modular biological purification apparatus, comprising a plurality of purification modules connected in parallel, series or stack, the purification modules comprising:

the water distribution and purification device comprises a box body, wherein a water collection area, a main purification area and a water distribution area are sequentially arranged in the box body from bottom to top, hard fillers are filled in the water collection area, light hydrophilic filler bags are filled in the main purification area, and a water outlet is formed in the side wall of the box body corresponding to the water collection area;

the water distribution pipeline is arranged in the water distribution area and is externally connected with a water inlet pipeline;

the air-drawing and oxygen-dissolving mechanism comprises an air inlet tunnel, an air inlet pipe and an air-drawing pipe, wherein the air inlet tunnel is horizontally distributed at the bottom of a main purification area, air diffusion holes are distributed in the air inlet tunnel, one end of the air inlet pipe is communicated with the air inlet tunnel, the other end of the air inlet pipe is communicated to the outside of the side wall of a box body, the air-drawing pipe is vertically inserted into the box body, the bottom end of the air-drawing pipe is communicated with the air inlet tunnel, and the top end of the air-drawing pipe extends out of the top of the box body as an air outlet.

2. The modular bio-purification apparatus of claim 1, wherein the height of said water collection area is 300-500 mm; the height of the main purification area is 1500-2000 mm.

3. The modular bio-purification apparatus according to claim 1, wherein the hard filler is basalt with a particle size of 30 to 40 mm; the light hydrophilic filling bag is a light hydrophilic filling small square block with the packaging specification of a woven mesh bag of 20-30 mm multiplied by 20-30 mm.

4. The modular bio-purification apparatus of claim 1, wherein the height difference between the air inlet of the air inlet duct and the air outlet of the air exhaust duct is not less than 2000mm.

5. The modular bio-purification apparatus of claim 1, wherein the height difference between the air inlet of the air inlet pipe and the horizontal plane of the air inlet tunnel is 300-500 mm.

6. The modular biological purification apparatus of claim 1, wherein the air inlet tunnels are arranged in 2-3 parallel to each other; the distance between the adjacent air inlet tunnels is 800-1200 mm; the distance between the adjacent air pulling pipes along the axial direction of the air inlet tunnel is 2000-2200 mm.

7. The modular bio-purification apparatus according to claim 1, wherein a filter screen is disposed at an air inlet of the air inlet pipe; and an air outlet of the air pulling pipe is provided with a rain-proof cap.

8. The modular bio-purification apparatus of claim 1, wherein the water distribution conduit comprises:

the water distribution header pipe is positioned in the box body or outside the box body and is externally connected with a water inlet pipeline;

the water distribution branch pipes are horizontally distributed in the water outlet area and are communicated with the water distribution main pipe, and the distance between every two adjacent water distribution branch pipes is 600-1000 mm;

and a water distribution pipe switch valve and a water distribution pipe back flush valve which are correspondingly arranged on each water distribution branch pipe.

Images