CN110548321A - Advanced sewage treatment device - Google Patents

Advanced sewage treatment device Download PDF

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Publication number
CN110548321A
CN110548321A CN201810691116.2A CN201810691116A CN110548321A CN 110548321 A CN110548321 A CN 110548321A CN 201810691116 A CN201810691116 A CN 201810691116A CN 110548321 A CN110548321 A CN 110548321A
Authority
CN
China
Prior art keywords
water
sewage
wastewater treatment
advanced
treatment device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810691116.2A
Other languages
Chinese (zh)
Inventor
陈伟斌
吴长彩
唐红
黎泽深
陈成光
何欣杰
钟宇皓
苗卫
刘杰灿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Xinhui CIMC Special Transportation Equipment Co Ltd
Original Assignee
Guangdong Xinhui CIMC Special Transportation Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Xinhui CIMC Special Transportation Equipment Co Ltd filed Critical Guangdong Xinhui CIMC Special Transportation Equipment Co Ltd
Priority to CN201810691116.2A priority Critical patent/CN110548321A/en
Publication of CN110548321A publication Critical patent/CN110548321A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • C02F3/28—Anaerobic digestion processes
    • 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
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2866—Particular arrangements for anaerobic reactors
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections

Abstract

The invention provides a sewage advanced treatment device which is arranged in a clean water tank and comprises a body, a water inlet and a backwashing water port. The water inlet is arranged on the body; the body is communicated with the clean water tank through the water outlet; the body is communicated with the clean water tank through the back washing water port so as to back wash the sewage advanced treatment device by using clean water in the clean water tank. The advanced wastewater treatment device according to the present invention can be combined with an existing wastewater treatment facility, and the advanced wastewater treatment device is arranged in a clean water tank, and the clean water tank can be a water storage tank in the existing wastewater treatment facility or a water storage tank modified based on the existing wastewater treatment facility. Therefore, the in-situ upgrading and reconstruction of sewage treatment facilities can be realized without increasing the occupied area, and the method is particularly suitable for deep sewage treatment or upgrading projects with tense land.

Description

Advanced sewage treatment device
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage advanced treatment device.
Background
At present, the urban sewage or industrial wastewater generally only adopts the processes of primary pretreatment and secondary biochemical treatment, mainly removes most suspended matters, organic pollutants and the like in the sewage, but has low removal efficiency on nutrient substances such as nitrogen, phosphorus and the like, so that the problem of water eutrophication is increasingly serious.
In recent years, with the stricter and stricter national environmental protection policies, the requirements on the discharge standard of the sewage treatment water quality are gradually improved, the current common sewage treatment process is difficult to reach higher discharge standard or the requirements on the standard of the recycled water quality, especially the requirements on the indexes of pollutants such as total phosphorus, total nitrogen, suspended matters and the like are improved, people are promoted to research and develop a new high-efficiency treatment process or carry out advanced treatment on the effluent of the existing sewage treatment process, and the requirements on upgrading and transforming of sewage treatment facilities are increased day by day.
However, the existing sewage treatment facilities, particularly the small and medium-sized sewage treatment facilities, generally reserve less future extension and reconstruction land during initial design, so that the available extension and reconstruction land is less, and the application of a new process is limited. And traditional advanced treatment equipment often the structure is complicated, and area is big to mostly be fixed building, the construction cycle is long, and the flexibility is poor, thereby has restricted advanced treatment equipment's actual application scope.
Therefore, there is a need for an advanced wastewater treatment device that at least partially solves the problems of the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to at least partially solve the above problems, according to one aspect of the present invention, there is provided a sewage advanced treatment apparatus for being disposed in a clean water tank, including a body, a water inlet, and a back-flushing water port. The water inlet is arranged on the body; the body is communicated with the clean water tank through the water outlet; the body is communicated with the clean water tank through the back washing water gap so as to back wash the sewage deep treatment device by using clean water in the clean water tank.
According to the scheme, the sewage advanced treatment device can be combined with the existing sewage treatment facility, and is arranged in the clean water tank, and the clean water tank can be a water storage tank in the existing sewage treatment facility or a water storage tank after being transformed based on the existing sewage treatment facility. Therefore, the in-situ upgrading and reconstruction of sewage treatment facilities can be realized without increasing the occupied area, and the method is particularly suitable for deep sewage treatment or upgrading projects with tense land.
And the clean water tank can store the clean water treated by the sewage advanced treatment device. The clean water can provide a backwashing water source for the sewage advanced treatment device, so that the sewage advanced treatment equipment integrating advanced treatment and filter material cleaning is formed.
Preferably, the body is internally provided with a sewage treatment part and a water and gas distribution part communicated with the sewage treatment part, the water and gas distribution part is positioned below the sewage treatment part, and the water outlet and the backwashing water port are arranged at the water and gas distribution part.
Preferably, the sewage advanced treatment device further comprises a back flush gas port, wherein the back flush gas port is arranged at the water and gas distribution part, so that back flush gas enters the sewage advanced treatment device through the back flush gas port.
Preferably, the sewage treatment part is provided with a filter material layer and a support layer positioned below the filter material layer.
Preferably, the sewage treatment section is configured as a sand filter.
Preferably, the sewage treatment section is configured as a micro-flocculation filter or a denitrification biological filter.
Preferably, a feeding device is arranged at the upstream of the sewage advanced treatment device and is communicated with the water inlet so as to add medicament or carbon source into the sewage.
preferably, the body is configured to open upward, and the sewage advanced treatment apparatus includes a cover plate openably and closably covering the body.
Preferably, the device further comprises a back washing device, the back washing water port and the clean water tank are used for conveying the clean water into the body through the back washing water port.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles and apparatus of the invention. In the drawings, there is shown in the drawings,
FIG. 1 is a schematic structural view of an advanced wastewater treatment apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a schematic plan view of the sewage advanced treatment apparatus shown in FIG. 1; and
FIG. 3 is a schematic view of the internal structure of the sewage advanced treatment apparatus shown in FIG. 1 in a use state.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the following description, for purposes of explanation, specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details set forth herein as are known to those of skill in the art. The following detailed description of the preferred embodiments of the present invention, however, the present invention may have other embodiments in addition to the detailed description, and should not be construed as being limited to the embodiments set forth herein.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for purposes of illustration only and are not limiting.
Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".
in the following, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the invention and do not limit the invention.
As shown in FIG. 1, the present invention provides an advanced wastewater treatment apparatus 100 for further purifying wastewater after primary pretreatment and/or secondary biochemical treatment has been performed, thereby increasing the water index, in combination with an existing wastewater treatment facility.
the advanced wastewater treatment apparatus 100 is configured to be disposed in a clean water tank 210 (fig. 2 and 3). The clean water tank 210 may be a water tank in an existing sewage treatment facility or a water tank after being modified based on the existing sewage treatment facility. Therefore, the in-situ upgrading and reconstruction of sewage treatment facilities can be realized without increasing the occupied area, and the method is particularly suitable for deep sewage treatment or upgrading projects with tense land.
The sewage advanced treatment device 100 comprises a body 111, a water inlet 121, a water outlet 122 and a back flushing water port 123. The water inlet 121, the water outlet 122 and the back-flushing water port 123 are provided on the body 111. The sewage to be treated enters from the water inlet 121. The body 111 is communicated with the clean water tank 210 through the water outlet 122, and the clean water treated by the advanced wastewater treatment device 100 is discharged from the water outlet 122 to the clean water tank 210. The body 111 communicates with the clean water tank 210 through the back washing water port 123 to back wash the sewage advanced treatment apparatus 100 with clean water in the clean water tank 210.
In the present embodiment, the advanced wastewater treatment device 100 may be disposed in the clean water tank 210, and the clean water tank 210 may store clean water treated by the advanced wastewater treatment device 100 and provide a back-flushing water source for the advanced wastewater treatment device 100, thereby forming an advanced wastewater treatment apparatus integrating advanced treatment and filter material cleaning.
Specifically, the water inlet 121 is disposed at an upper portion of the body 111, and the water outlet 122 and the back-wash water port 123 are disposed at a lower portion of the body 111. Preferably, the advanced wastewater treatment device 100 further comprises a backwash gas port 124 at the lower part, so that backwash gas enters the advanced wastewater treatment device 100 through the backwash gas port 124. Thus, the advanced treatment in the present embodiment employs a flow direction of sewage from the top down, and the backwashing treatment employs a flow direction of backwash water and/or backwash gas from the bottom up.
The sewage advanced treatment apparatus 100 includes a sewage treatment section 141 and a water and gas distribution section 142. The sewage treatment section 141 is provided with a filter material layer 143 and a support layer 144 located below the filter material layer 143. The support layer 144 supports the filter layer 143. The water and gas distributing portion 142 is located below the sewage treatment portion 141 and communicates with the sewage treatment portion 141. Specifically, the support layer 144 may include a support filler 145 and a support 146. In another embodiment, the support layer 144 may be a support 146. The support 146 may be an orifice plate coupled to the body 111. The sewage flows from top to bottom to the filter material layer 143 after entering from the water inlet 121, and forms clear water after being filtered by the filter material layer 143. The clean water flows to the water and gas distributing part 142 through the supporting layer 144. The type of filter material, the number of filter layers and the height of the filter layers of the filter material layer 143, and the type and height of the supporting filler 145 may be set according to the requirements of the functional filter tank designed by the advanced wastewater treatment device 100.
Further, the body 111 is further provided with a drain outlet 125, and the drain outlet 125 is located below the water inlet 121. The water inlet 121 and the soil discharge outlet 125 are provided at the sewage treatment part 141. The water outlet 122 and the back flush water inlet 123 are provided at the water and gas distributing part 142, and the back flush gas inlet 124 is also provided at the water and gas distributing part 142. When the advanced wastewater treatment apparatus 100 performs advanced wastewater treatment, the treated clean water is received by the water and gas distributing part 142 and flows into the clean water tank 210 through the water outlet 122. When the sewage advanced treatment device 100 performs the backwashing treatment, the clean water and/or the backwashing gas in the clean water tank 210 is received by the water and gas distributing part 142, so that the filter material layer 143 is backwashed.
This embodiment further comprises a water inlet pipe 131, a water outlet pipe 132, a backwash pipe 133 and a sewage drain 136. The inlet pipe 131 and the soil discharge pipe 136 are connected to the upper portion of the body 111, and the outlet pipe 132 and the backwash pipe 133 are connected to the lower portion of the body 111. Specifically, the inlet tube 131 extends into the body 111 via the inlet port 121, and the outlet end of the inlet tube 131 opens downward. If needed and/or desired, the outlet end of the inlet tube 131 may be configured as a water distribution structure or provided with a water distribution device to distribute the sewage substantially evenly. The water outlet pipe 132 is connected to the water and gas distributing portion 142, and the clean water tank 210 is communicated with the water outlet 122 via the water outlet pipe 132. Optionally, the water inlet pipe 131 is provided with a water inlet control valve to adjust the flow rate of the incoming sewage. The water inlet control valve is located at or near the water inlet end of the water inlet pipe 131. The outlet pipe 132 is provided with an outlet control valve to regulate the flow rate of the discharged fresh water. When the advanced wastewater treatment apparatus 100 performs advanced wastewater treatment, the water inlet control valve on the water inlet pipe 131 and the water outlet control valve on the water outlet pipe 132 are in an open state. When the sewage advanced treatment apparatus 100 performs the backwashing, the water inlet control valve and the water outlet control valve are in a closed state so that the backwashing water and the backwashing gas can be accumulated in the sewage advanced treatment apparatus 100.
The back-flushing pipe 133 is connected to the water and gas distributing portion 142 and extends into the water and gas distributing portion 142. The backwash pipe 133 includes a backwash water pipe 134 communicating with the backwash water port 123 and a backwash air pipe 135 communicating with the backwash air port 124. One end of the drain pipe 136 is communicated with the drain outlet 125, and the other end extends out of the clean water tank 210 to externally drain the backflushed sewage. Optionally, the backwash water pipe 134 is provided with a backwash water control valve to regulate the flow rate of the fresh water for backwash. The backwash gas pipe 135 is provided with a backwash gas control valve to regulate the flow rate of the backwash gas. The drain 136 is provided with a drain control valve. When the advanced wastewater treatment apparatus 100 performs advanced wastewater treatment, the backwash water control valve, the backwash gas control valve, and the drain pipe control valve are in a closed state. When the advanced wastewater treatment apparatus 100 performs a backwash treatment, the drain control valve may be opened, and at least one of the backwash water control valve and the backwash gas control valve may be opened as needed. For example, when gas and water are needed for back flushing simultaneously, the back flushing water control valve and the back flushing gas control valve can be opened, water and gas distribution is performed at the water and gas distribution part 142, then the filter material is back flushed, and the sewage after back flushing is discharged from the sewage discharge pipe 136.
Alternatively, the body 111 is configured to open upward, and the sewage advanced treatment apparatus 100 includes a cover plate 112 openably and closably covering the body 111. The cover 112 is a removable cover that can be removed from the body 111. The body 111 is provided with a transport engagement, such as the embodiment shown in the figures where the transport engagement is a lifting lug 113, for performing lifting operations, facilitating movement, installation and transport. When the filter material needs to be replaced, the sewage advanced treatment device 100 can be lifted away from the clean water tank 210 and placed at a proper position, and then the cover plate 112 is opened to replace the filter material.
Preferably, the body 111 is configured in a cylindrical shape, and the shape of the horizontal section of the body 111 is circular. This can reduce the difficulty in manufacturing the main body 111. The shape of the horizontal cross-section of the body 111 can be square, rectangular, or other suitable shape, if needed and/or desired.
The present embodiment further includes a backwashing device (not shown) communicating with the backwashing water port 123 and the clean water tank 210 to deliver clean water into the body 111 through the backwashing water port 123. Optionally, the backflushing means includes a backflushing pump. The water inlet end of the back washing pump is communicated with the clean water tank 210 through the clean water outlet pipe 132, and the water outlet end is connected with the back washing water pipe 134 to convey the clean water to the water and gas distribution part 142 as a back washing water source. The backwash air port 124 is communicated with the gas source device of the existing sewage treatment facility through the backwash air pipe 135, so that the gas output by the gas source device of the existing sewage treatment facility is used as the backwash gas source. Therefore, energy consumption can be saved, and cost can be reduced. If needed and/or desired, an air compressor may be provided to supply air to the water distribution and dispensing portion 142 in place of the air supply device of the existing sewage treatment apparatus.
The advanced wastewater treatment device 100 can be designed into a sand filter, a micro-flocculation filter, a denitrification biological filter and other functional filters according to different advanced treatment requirements. Specifically, the sewage treatment section 141 is configured as one of functional filters such as a sand filter, a micro-flocculation filter, and a denitrification biological filter. Therefore, the filter material in the filter material layer 143 needs to be reasonably selected according to the design requirement.
The advanced wastewater treatment apparatus 100 of the present invention is preferably used for treating wastewater (water to be treated) after primary pretreatment and/or secondary biochemical treatment.
When the invention is only used for filtering suspended matters in water to be treated, the sewage advanced treatment device 100 is designed into a sand filter, and fine suspended pollutants in the water are further filtered through the filtering action of a filter material, so that the standard of SS (suspended matters) of effluent water is ensured. The embodiment in the figure shows that the sewage advanced treatment device 100 is a sand filter. The filter material layer 143 is preferably made of quartz sand with a layer height of 1600mm and an effective particle size of 1.2-2.4 mm. The supporting layer 144 preferably adopts gravel with the effective grain diameter of 3.0-19 mm and the layer height of 400 mm.
When the invention is used for strengthening dephosphorization treatment, the sewage advanced treatment device 100 is designed according to a micro flocculation filter tank. In this case, a feeding device needs to be provided upstream of the advanced wastewater treatment apparatus 100. The feeding device is communicated with the water inlet 121 to add medicament to the water to be treated. Optionally, the feeding device communicates with the water inlet 121 via a line mixer. The pipeline mixer is arranged on the water inlet pipe 131 and used for adding a phosphorus removal medicament. Phosphate in water to be treated and a phosphorus removal medicament form a micro-floccule in a pipeline mixer, and then the phosphate directly enters the sewage advanced treatment device 100 for filtration treatment, so that the effects of chemically removing phosphorus and filtering suspended matters in water can be achieved, precipitation (or clarification) equipment is not required to be arranged after the medicament is added, and the process flow is simplified.
When the invention is used for reducing the total nitrogen in water, the sewage advanced treatment device 100 is designed according to a denitrification biological filter. In this case, a feeding device needs to be provided upstream of the advanced wastewater treatment apparatus 100. The feeding device is communicated with the water inlet 121 to add a carbon source to the water to be treated. Optionally, the feeding device communicates with the water inlet 121 via a line mixer. The line mixer is provided on the water inlet pipe 131 for adding a carbon source. Denitrifying bacteria are attached to the filter material layer 143, grow on the surface of the filter material, and perform denitrification reaction with nitrate nitrogen in the inlet water by using the added carbon source to convert the nitrate nitrogen into nitrogen, thereby achieving the purpose of denitrification
The electrically controlled devices/components such as the backwash pump and the second control valve of the present embodiment can be controlled by the control system of the existing sewage treatment facility. The backwash pump and the feeding device may be arranged in an equipment room of an existing sewage treatment facility.
Fig. 2 and 3 show that the advanced wastewater treatment apparatus 100 of the present invention is combined with a conventional wastewater treatment facility 200 to form an exemplary embodiment of an integrated wastewater treatment facility.
As shown in fig. 2 and 3, the integrated sewage treatment apparatus includes a biochemical tank 220, a sedimentation tank 230, and a clean water tank 210. The sedimentation tank 230 is provided in the biochemical tank, and the sewage advanced treatment apparatus is provided in the clean water tank 210. The sewage is subjected to biochemical treatment and sedimentation treatment, and then is subjected to advanced treatment, so that the water quality index requirement of the treated clean water can be improved.
Specifically, the integrated sewage treatment apparatus includes an apparatus body 201. The apparatus body 201 is divided into a biochemical tank, a sedimentation tank 230 and a clean water tank 210. The sewage advanced treatment apparatus 100 may be fixed to the apparatus body 201 by a bracket 202. The sewage advanced treatment apparatus 100 is shown in the middle of the clean water tank 210. Alternatively, the clean water tank 210 may be an existing water tank for storing water discharged from the settling tank 230. Or, alternatively, the apparatus body 201 includes a first body for constructing the biochemical and/or sedimentation tank 230, and a second body for constructing the clean water tank 210. The second body can be transformed by utilizing steel structure materials on the basis of the first body.
The biochemical tank of the present embodiment may include at least one of an anoxic tank, an anaerobic tank, and an aerobic tank. The embodiment in the figure shows that the biochemical pond comprises an anoxic pond 221 and an aerobic pond 222 communicated with the anoxic pond 221. The aerobic tank 222 is communicated with the sedimentation tank 230. The sewage firstly enters the anoxic tank 221 for anoxic treatment, then enters the aerobic tank 222 for aerobic treatment, and then enters the sedimentation tank 230 for sedimentation treatment after the aerobic treatment.
Specifically, the water inlet of the sedimentation tank 230 is arranged at the water outlet end of the aerobic tank 222, and the water outlet of the sedimentation tank 230 is arranged away from the water outlet end of the aerobic tank 222. The water inlet pipe 131 of the advanced wastewater treatment device 100 is communicated with the water outlet of the sedimentation tank 230 so that the treated water in the sedimentation tank 230 flows into the advanced wastewater treatment device 100. The illustrated embodiment shows that the upper portion of the settling tank 230 is provided with a weir duct 231. The outlet of the settling tank 230 is disposed at the weir duct 231. The outlet of the settling tank 230 is connected to the inlet pipe 131 through the outlet pipe 203. The advanced wastewater treatment apparatus 100 of the present embodiment is designed as a micro-flocculation filter. A line mixer may be provided on the inlet pipe 131. A feeding device adds a phosphorus removal agent such as PAC (polyaluminium chloride) to the treated water through a line mixer and mixes to form a micro-floc. And then enters the sewage advanced treatment device 100 for filtration treatment.
when the sewage advanced treatment device 100 needs to be backwashed, clean water is firstly conveyed to the water and gas distribution part 142 through the clean water outlet pipe 132, the backwash pump and the backwash water pipe 134, and backwash gas (gas source) provided by the gas source device is conveyed to the water and gas distribution part 142 through the backwash gas pipe 135. And then water and gas distribution treatment is carried out in the water and gas distribution part 142, then the filter material is back flushed, and the sewage after back flushing is discharged from the discharge pipe 136.
Unless defined otherwise, 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a sewage deep treatment device, sewage deep treatment device is arranged in the clean water basin, its characterized in that includes:
A body;
The water inlet is arranged on the body;
The body is communicated with the clean water tank through the water outlet; and
And the body is communicated with the clean water tank through the back flushing water port so as to back flush the sewage deep treatment device by using clean water in the clean water tank.
2. The sewage advanced treatment device according to claim 1, wherein a sewage treatment part and a water and gas distribution part communicated with the sewage treatment part are arranged in the body, the water and gas distribution part is positioned below the sewage treatment part, and the water outlet and the back flushing water port are arranged at the water and gas distribution part.
3. The advanced wastewater treatment device according to claim 2, further comprising a backwash gas port provided at the water distribution and gas distribution portion so that backwash gas enters the advanced wastewater treatment device through the backwash gas port.
4. The advanced wastewater treatment device according to claim 2, wherein the wastewater treatment section is provided with a filter layer and a support layer below the filter layer.
5. The advanced wastewater treatment apparatus according to claim 2, wherein the wastewater treatment section is configured as a sand filter.
6. The advanced wastewater treatment apparatus according to claim 2, wherein the wastewater treatment section is configured as a micro-flocculation filter or a denitrification biological filter.
7. The advanced wastewater treatment device according to claim 6, wherein a feeding device is arranged upstream of the advanced wastewater treatment device, and the feeding device is communicated with the water inlet to add an agent or a carbon source into the wastewater.
8. The advanced wastewater treatment apparatus according to claim 1, wherein the body is configured to open upward, and the apparatus comprises a cover plate openably and closably covering the body.
9. the advanced wastewater treatment apparatus according to claim 1, further comprising a back-flushing device communicating with said back-flushing water port and said clean water tank for delivering said clean water into said body through said back-flushing water port.
CN201810691116.2A 2018-06-28 2018-06-28 Advanced sewage treatment device Pending CN110548321A (en)

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CN208726830U (en) * 2018-06-28 2019-04-12 广东新会中集特种运输设备有限公司 Sewage water advanced treatment apparatus

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