CN210974319U - Cascaded sewage treatment system - Google Patents

Cascaded sewage treatment system Download PDF

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Publication number
CN210974319U
CN210974319U CN201921586011.7U CN201921586011U CN210974319U CN 210974319 U CN210974319 U CN 210974319U CN 201921586011 U CN201921586011 U CN 201921586011U CN 210974319 U CN210974319 U CN 210974319U
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China
Prior art keywords
pond
guide plate
tank
contact oxidation
sewage
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CN201921586011.7U
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Chinese (zh)
Inventor
熊霞
何光亚
司恩良
刘程
周盈盈
张焜
闵飞虎
程涛
陈斌
陈红
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Anhui Tongyuan Environment Energy Saving Co Ltd
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Anhui Tongyuan Environment Energy Saving Co Ltd
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Abstract

The utility model discloses a cascaded sewage treatment system, its sewage treatment pond that utilizes to set gradually is to sewage purification treatment, include: the tank that is used for holding sewage that communicates in proper order, the anaerobism pond that is used for decomposing the pollutant, utilize the microorganism to carry out the contact oxidation pond that purifies to sewage to and constructed wetland, tank, anaerobism pond, contact oxidation pond all are equipped with the liquid level that the position of delivery port and delivery port all is higher than the next sewage treatment pond that communicates with it, and the water is under the promotion of gravity, and spontaneous every step through water purification need not outside power, make full use of vertical space reduces sewage treatment system's area, the energy saving.

Description

Cascaded sewage treatment system
Technical Field
The utility model relates to a water pollution treatment technical field, concretely relates to cascaded sewage treatment system.
Background
With the development of cities, the treatment of domestic sewage becomes an increasingly prominent problem.
In the prior art, a large area of land is needed for centralized sewage treatment, the vertical space cannot be fully utilized, external power is needed, and energy is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a cascaded sewage treatment system, the water is under the promotion of gravity, and spontaneous every step through the water purifies need not external power, and make full use of vertical space reduces sewage treatment system's area, the energy saving.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a stepped sewage treatment system for purifying sewage by using sewage treatment tanks which are sequentially arranged, comprising: the tank that is used for holding sewage that communicates in proper order, the anaerobism pond that is used for decomposing the pollutant, utilize the microorganism to carry out the contact oxidation pond that purifies to sewage to and constructed wetland, tank, anaerobism pond, contact oxidation pond all are equipped with the liquid level that the position of delivery port and delivery port all is higher than the next sewage treatment pond that communicates with it.
Further, the water outlet of the water storage tank is arranged at the bottom of the water storage tank and is communicated with the anaerobic tank through a conduit.
Further, be equipped with guide plate group in the anaerobism pond, guide plate group includes first guide plate, second guide plate and the third guide plate with the pool wall parallel arrangement of anaerobism pond, first guide plate, third guide plate set firmly in the inside top surface of anaerobism pond, the second guide plate sets firmly in the inside lower surface of anaerobism pond and is located between first guide plate and the third guide plate.
Further, the contact oxidation pond includes first contact oxidation pond and second contact oxidation pond, the delivery port of first contact oxidation pond, the delivery port of second contact oxidation pond and the delivery port of anaerobism pond all communicate there is the spray tube, be equipped with the aperture on the spray tube.
Furthermore, a fourth guide plate parallel to the tank wall is fixedly arranged on the tank wall in the first contact oxidation tank and the second contact oxidation tank.
Furthermore, a filler is suspended in the contact oxidation pond, and the filler is any one of high-density three-dimensional elastic filler, soft filler, combined filler and porous suspension ball filler.
Furthermore, the constructed wetland comprises a first constructed wetland and a second constructed wetland, wherein the first constructed wetland and the second constructed wetland are sequentially provided with a rubble layer, an aggregate layer, a soil layer and a wetland plant layer from bottom to top.
Further, the rubble layer is goose soft stone, and the aggregate layer is sludge-based biochar.
Furthermore, the second artificial wetland is communicated with a water outlet groove, the bottom of the first artificial wetland is provided with a lower overflowing plate communicated with the second artificial wetland, and the upper part of the second artificial wetland is provided with an upper overflowing plate communicated with the water outlet groove.
Furthermore, the water outlet groove is provided with a backflow port, and the backflow port is connected with the water storage tank through a conduit.
Compared with the prior art, the utility model has the advantages that:
1. the water body is pushed by gravity, and spontaneously passes through each step of water body purification without external power, so that the vertical space is fully utilized, the floor area of a sewage treatment system is reduced, and energy is saved.
2. When sewage is in the anaerobic tank, the space of the anaerobic tank is fully flowed through by sewage due to the diversion and drainage effects of the first guide plate, the second guide plate and the third guide plate, so that the outflow speed of sewage is reduced, sewage is stopped in the anaerobic tank as long as possible, pollutants in sewage are conveniently removed, and the removal rate of the pollutants is improved.
3. The water outlet of the anaerobic tank and the water outlet of the first contact oxidation tank are communicated with spray pipes, small holes are formed in the spray pipes, and the sewage is sprayed out from the small holes in the sewage sub-spray pipes, so that the outflow speed is reduced, the production environment of microorganisms on the filler in the contact oxidation tank is prevented from being damaged, and the pollutant treatment capacity of a sewage treatment system is improved; the water outlet of the second contact oxidation pond is communicated with a spray pipe, the spray pipe is provided with a small hole, the outflow speed of sewage is slowed down, the substrate in the artificial wetland is prevented from being damaged when the outflow speed of the sewage is too high, the layered structure distribution of the substrate and the living environment of plants can be effectively protected, and the treatment capacity of the sewage treatment system to pollutants is improved.
4. The lower overflowing plates and the upper overflowing plates can limit the speed of sewage passing through the artificial wetland, so that the sewage can stay in the artificial wetland for a sufficient time, pollutants in the sewage can be removed as much as possible by each matrix material of the artificial wetland, and the pollutant purification capacity of the sewage treatment system is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the nozzle of the present invention;
FIG. 3 is a schematic structural view of the interior of the anaerobic tank of the present invention;
FIG. 4 is a schematic view of the internal structure of the contact oxidation tank of the present invention.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a stepped sewage treatment system for purifying sewage by using sewage treatment tanks arranged in sequence comprises: the system comprises a water storage tank 1 for containing sewage, an anaerobic tank 2 for decomposing pollutants, a contact oxidation tank for purifying sewage by using microorganisms and an artificial wetland which are sequentially communicated, wherein the water storage tank, the anaerobic tank and the contact oxidation tank are all provided with water outlets, and the positions of the water outlets are all higher than the liquid level of the next sewage treatment tank communicated with the water storage tank; because each sewage treatment pond is linked together, and the position of delivery port is higher than the liquid level in next sewage treatment pond, the water need not external power under the promotion of gravity, and the vertical space is fully utilized to every step of spontaneous process water purification, reduces sewage treatment system's area, energy saving.
As shown in fig. 1, delivery port 8 of tank 1 sets up in the tank bottom, and communicates with anaerobism pond 2 through the pipe, and the delivery port of tank is higher than the liquid level of anaerobism pond, and what sewage was spontaneous flows to the anaerobism pond from the tank, and communicates through the pipe between tank and the anaerobism pond, makes the environment in the anaerobism pond be favorable to anaerobe's existence, has improved the efficiency and the effect that the anaerobism pond decomposed organic pollutant.
As shown in fig. 1 and 3, a flow guide plate group is arranged in the anaerobic tank, the flow guide plate group comprises a first flow guide plate 20, a second flow guide plate 21 and a third flow guide plate 22 which are arranged in parallel with the tank wall of the anaerobic tank, the first flow guide plate and the third flow guide plate are fixedly arranged on the upper top surface of the anaerobic tank, the second flow guide plate is fixedly arranged on the lower surface of the anaerobic tank and is positioned between the first flow guide plate and the third flow guide plate, one end of the first flow guide plate and one end of the third flow guide plate are fixedly connected with the upper top surface of the anaerobic tank, a space is reserved between the other end of the first flow guide plate and the lower surface of the anaerobic tank, the first flow guide plate, the second flow guide plate and the third flow guide plate are all parallel with the tank wall of the anaerobic tank, the second flow guide plate is arranged between the first flow guide plate and the third flow guide plate, one end of the second flow guide, after sewage flows into the anaerobic tank from the water storage tank, the sewage passes through the first guide plate, the second guide plate and the third guide plate successively under the guide action of the guide plate group, so that the sewage flows through the space of the anaerobic tank sufficiently, the outflow speed of the sewage is reduced, the impact load resistance performance is good, the sewage stays in the anaerobic tank for a long time as far as possible, pollutants in sewage are removed conveniently, and the removal rate of the pollutants is improved.
As shown in fig. 1 and 2, the contact oxidation tank comprises a first contact oxidation tank 3 and a second contact oxidation tank 4, a water outlet 11 of the first contact oxidation tank, a water outlet 12 of the second contact oxidation tank and a water outlet 10 of the anaerobic tank are all communicated with a spray pipe 18, the spray pipe is provided with a small hole 19, the spray pipe is arranged in parallel with the tank wall of the contact oxidation tank, the spray pipe is hollow, two ends of the spray pipe are sealed, a row of small holes are formed in the pipe wall, sewage flows into the spray pipe from the water outlet and then flows out from the small hole to be sprayed to the next sewage treatment tank, the sewage is sprayed out from the small hole on the spray pipe, the outflow speed is reduced, the production environment of microorganisms on the filler in the contact oxidation tank is prevented from being damaged, and the pollutant treatment capacity of the sewage treatment system is; the matrix in the artificial wetland is prevented from being damaged when the outflow speed of sewage is too high, the distribution of the layered structure of the matrix and the living environment of plants can be effectively protected, and the pollutant treatment capacity of the sewage treatment system is improved; all be equipped with oxygenation pump air bubble stone in first contact oxidation pond and the second contact oxidation pond, can carry out tolerance and adjust, carry out good oxygen aeration to the contact oxidation pond, be favorable to the decomposition of microorganism in the contact oxidation pond to pollutant in the sewage to absorb, shock load resistance can be good, and area is little, has improved sewage treatment efficiency and effect.
As shown in fig. 1 and 4, the wall of the first contact oxidation pond 3 and the wall of the second contact oxidation pond 4 are fixedly provided with a fourth guide plate 23 parallel to the wall of the first contact oxidation pond, one end of the fourth guide plate is fixedly connected with the top surface of the inside of the contact oxidation pond, and a space is reserved between the other end of the fourth guide plate and the lower surface of the inside of the contact oxidation pond.
As shown in fig. 1, a filler is suspended in the contact oxidation pond, the filler is any one of high-density three-dimensional elastic filler, soft filler, combined filler and porous suspension ball filler, and the filler is favorable for generating a biological membrane and increasing the sewage treatment effect of microorganisms on the biological membrane.
As shown in fig. 1, the artificial wetland comprises a first artificial wetland 5 and a second artificial wetland 6, wherein the first artificial wetland and the second artificial wetland are sequentially provided with a rubble layer, an aggregate layer, a soil layer and a wetland plant layer from bottom to top; the rubble layer is goose soft stone, and the aggregate layer is sludge-based biochar; the artificial wetland is constructed and operated artificially and is similar to the wetland ground, the stone chipper adopts goose soft stone, the aggregate layer adopts sludge-based biochar, the wetland plant layer is any one of typha, reed, Thalia flower and canna, the stone chipper, the aggregate layer, the soil layer and the wetland plant layer are matched, the sewage and the sludge are treated by utilizing the physical, chemical and biological triple effects of soil, artificial media, plants and microorganisms, the action mechanism of the artificial wetland comprises adsorption, detention, filtration, oxidation reduction, precipitation, microbial decomposition, transformation, plant shielding, residue accumulation and the like, and pollutants in the sewage can be effectively removed.
As shown in fig. 1, the second artificial wetland is communicated with a water outlet groove 7, the bottom of the first artificial wetland is provided with a lower overflowing plate 13 communicated with the second artificial wetland, the upper part of the second artificial wetland is provided with an upper overflowing plate 14 communicated with the water outlet groove, and the upper overflowing plate and the lower overflowing plate are provided with a plurality of small holes, so that the water flow speed can be reduced, and the impact load resistance is good.
As shown in fig. 1, the outlet tank is provided with a backflow port 16, the backflow port is communicated with the water storage tank through a conduit, the water storage tank is provided with a backflow inlet port 17, the backflow port and the backflow inlet port are communicated through a conduit, the outlet tank is communicated with a purification water port 15, water quality monitoring can be performed at the purification water port, when the water quality does not reach the standard, water in the outlet tank can be introduced into the water storage tank through the backflow port and the backflow inlet port, sewage purification is performed again, the purification degree of the water quality is improved, and power is provided by a power system when the sewage flows back to the water storage tank from the outlet tank, for example, a water pump.
The working principle of the utility model is as follows:
the sewage is introduced into the water storage tank, flows into the anaerobic tank from a water outlet of the water storage tank, flows into the contact oxidation tank from the water outlet of the anaerobic tank after sequentially flowing through the first guide plate, the second guide plate and the third guide plate, flows into the first artificial wetland from the water outlet of the contact oxidation tank after flowing through the fourth guide plate, sequentially flows through the lower flow passing plate and the upper flow passing plate to enter the water outlet tank, flows out from the purification water port if the water quality is up to standard, and flows back to the water storage tank from the backflow port if the water quality is not up to standard.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a cascaded sewage treatment system, its sewage treatment pond that utilizes to set gradually is to sewage purification treatment, a serial communication port, include: the pond (1) that is used for holding sewage that communicates in proper order, be used for decomposing anaerobism pond (2) of pollutant, utilize the microorganism to carry out the contact oxidation pond that purifies to sewage to and constructed wetland, pond, anaerobism pond, contact oxidation pond all are equipped with the liquid level that the position of delivery port and delivery port all is higher than the next sewage treatment pond that communicates with it.
2. The stepped wastewater treatment system of claim 1, wherein: the water outlet (8) of the water storage tank (1) is arranged at the bottom of the water storage tank and is communicated with the anaerobic tank (2) through a conduit.
3. The stepped wastewater treatment system of claim 1, wherein: the anaerobic tank is internally provided with a guide plate group, the guide plate group comprises a first guide plate (20), a second guide plate (21) and a third guide plate (22) which are arranged in parallel with the tank wall of the anaerobic tank, the first guide plate and the third guide plate are fixedly arranged on the upper top surface inside the anaerobic tank, and the second guide plate is fixedly arranged on the lower surface inside the anaerobic tank and is positioned between the first guide plate and the third guide plate.
4. The stepped wastewater treatment system of claim 1, wherein: the contact oxidation pond includes first contact oxidation pond (3) and second contact oxidation pond (4), delivery port (11) of first contact oxidation pond, delivery port (12) and the delivery port (10) in anaerobism pond of second contact oxidation pond all communicate there is spray tube (18), be equipped with aperture (19) on the spray tube.
5. The stepped wastewater treatment system of claim 4, wherein: and a fourth guide plate (23) parallel to the tank wall is fixedly arranged on the tank wall in the first contact oxidation tank (3) and the second contact oxidation tank (4).
6. The stepped wastewater treatment system of claim 1, wherein: and a filler is suspended in the contact oxidation pond, and the filler is any one of high-density three-dimensional elastic filler, soft filler, combined filler and porous suspension ball filler.
7. The stepped wastewater treatment system of claim 1, wherein: the artificial wetland comprises a first artificial wetland (5) and a second artificial wetland (6), wherein the first artificial wetland and the second artificial wetland are sequentially provided with a rubble layer, an aggregate layer, a soil layer and a wetland plant layer from bottom to top.
8. The stepped wastewater treatment system of claim 7, wherein: the rubble layer is goose soft stone, and the aggregate layer is sludge-based biochar.
9. The stepped sewage treatment system according to claim 7, wherein the second artificial wetland is communicated with a water outlet groove (7), the bottom of the first artificial wetland is provided with a lower overflowing plate (13) communicated with the second artificial wetland, and the upper part of the second artificial wetland is provided with an upper overflowing plate (14) communicated with the water outlet groove.
10. The stepped wastewater treatment system of claim 9, wherein: the water outlet groove is provided with a backflow port (16), and the backflow port is communicated with the water storage tank through a conduit.
CN201921586011.7U 2019-09-23 2019-09-23 Cascaded sewage treatment system Active CN210974319U (en)

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Application Number Priority Date Filing Date Title
CN201921586011.7U CN210974319U (en) 2019-09-23 2019-09-23 Cascaded sewage treatment system

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Application Number Priority Date Filing Date Title
CN201921586011.7U CN210974319U (en) 2019-09-23 2019-09-23 Cascaded sewage treatment system

Publications (1)

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CN210974319U true CN210974319U (en) 2020-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113149371A (en) * 2021-05-21 2021-07-23 上海市政工程设计研究总院(集团)有限公司 Stepped rural sewage ecological treatment system and treatment method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113149371A (en) * 2021-05-21 2021-07-23 上海市政工程设计研究总院(集团)有限公司 Stepped rural sewage ecological treatment system and treatment method thereof

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CP02 Change in the address of a patent holder

Address after: No. 3966, Qimen Road, Baohe District, Hefei, Anhui Province, 230009

Patentee after: ANHUI TONGYUAN ENVIRONMENT ENERGY SAVING Co.,Ltd.

Address before: No. 856, Jinzhai South Road, Baohe District, Hefei City, Anhui Province, 230041

Patentee before: ANHUI TONGYUAN ENVIRONMENT ENERGY SAVING Co.,Ltd.

CP02 Change in the address of a patent holder