CN107935273A - Gravity installation intelligent control backwashing sewage water processing system - Google Patents
Gravity installation intelligent control backwashing sewage water processing system Download PDFInfo
- Publication number
- CN107935273A CN107935273A CN201711477917.0A CN201711477917A CN107935273A CN 107935273 A CN107935273 A CN 107935273A CN 201711477917 A CN201711477917 A CN 201711477917A CN 107935273 A CN107935273 A CN 107935273A
- Authority
- CN
- China
- Prior art keywords
- water
- siphon
- electrically operated
- intelligent control
- processing system
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 239000010865 sewage Substances 0.000 title claims abstract description 27
- 230000005484 gravity Effects 0.000 title claims abstract description 15
- 238000011001 backwashing Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 title claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 238000005273 aeration Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 4
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of gravity installation intelligent control backwashing sewage water processing system, including aeration dissolved oxygen water knockout drum（3）, drainage system and four groups of filter elements, every group of filter element be configured with one group of siphonic system, the aeration dissolved oxygen water knockout drum（3）Positioned at four groups of filter element central uppers, every group of filter element includes water inlet pipe（1）, outlet pipe（2）And filtered water tank（4）, water inlet pipe（1）With being aerated dissolved oxygen water knockout drum（3）, siphonic system be connected, be aerated dissolved oxygen water knockout drum（3）With filtered water tank（4）It is connected, outlet pipe（2）With filtered water tank（4）It is connected, in filtered water tank（4）Inside is from top to bottom provided with clear water zone（6）, inhalant region（7）, filtering area（8）And gathering ground（9）, the present invention can carry out intelligent type filtering and backwash work, save manpower, manageability is easy to operate, easy care.
Description
Technical field
The present invention relates to a kind of sewage disposal system, especially gravity installation intelligent control backwashing sewage water processing system
System.
Background technology
At present, developing rapidly with Chinese national economy, living standards of the people are continuously improved, and environmental protection administration is to city ring
The control of border pollution is more and more tighter, but current filter, also there are backwashing water water distribution is uneven, uneven grade of catchmenting lacks
Point, and common filter will also install time-program(me) control instrument or the process procedures control that some need manually to safeguard meticulously
Instrument processed, of high cost, efficiency is low.
The valveless water filter device of the above problem can be effectively avoided to be widely used in earth's surface Water warfare, landscape Water warfare, river and lake water
Purification, underground water deferrization and demanganization, industrial circulating water bypath filter, production waste water except suspended impurity, organic sewage through biochemical treatment,
Subsequent filter processing after secondary precipitation processing.
Existing valveless water filter device is poor for filtering function, and need to be manually operated and be filtered and backwashed, and adds people
Work cost.
The content of the invention
The object of the present invention is in view of the above shortcomings of the prior art, there is provided a kind of gravity installation intelligent control is anti-
Sewage disposal system is rinsed, which can carry out intelligent type filtering and backwash work, save manpower, manageability is easy to operate, easily
Safeguard.
To reach above-mentioned technique effect, the technical solution adopted in the present invention is as follows：
Gravity installation intelligent control backwashing sewage water processing system of the present invention, including aeration dissolved oxygen water knockout drum, drainage system and
Four groups of filter elements, every group of filter element are configured with one group of siphonic system, and the aeration dissolved oxygen water knockout drum is located at four groups of filterings
Unit center top, every group of filter element include water inlet pipe, outlet pipe and filtered water tank, and water inlet pipe divides water with aeration dissolved oxygen
Device, siphonic system are connected, and aeration dissolved oxygen water knockout drum is connected with filtered water tank, and outlet pipe is connected with filtered water tank, in filtered water tank
Inside is from top to bottom provided with clear water zone, inhalant region, filtering area and gathering ground, and siphonic system is connected with blowoff basin, blowoff basin
It is connected with sewage backwash pipe；Electrically operated valve is provided with water inlet pipe, auxiliary electric valve is provided with siphonic system.
As the preferred solution of the present invention, the siphonic system includes the siphon tedge and rainbow being connected with inhalant region
The siphon down-comer that riser is connected is sucted, the water outlet of siphon down-comer is communicated with blowoff basin, in siphon tedge and siphon
Auxiliary siphon tube and siphon destructing tube are equipped among down-comer.
As the preferred solution of the present invention, B1 electrically operated valves, B2 are separately installed with the water inlet pipe of every group of filter element
Electrically operated valve, B3 electrically operated valves and B4 electrically operated valves, are separately installed with A1 auxiliary on the siphon destructing tube of four groups of filter elements
Electrically operated valve, A2 auxiliary electrics valve, A3 auxiliary electrics valve and A4 auxiliary electric valves, A1 auxiliary electrics valve and B1 are electronic
Valve is engaged, and A2 auxiliary electrics valve is engaged with B2 electrically operated valves, and A3 auxiliary electrics valve is engaged with B3 electrically operated valves,
A4 auxiliary electrics valve is engaged with B4 electrically operated valves.
As the preferred solution of the present invention, the filtering area is formed by filtering tank interval, and filtering tank includes tank body, in tank body
Middle part is provided with filtering layer, and filtering layer lower part is provided with supporting layer.
As the preferred solution of the present invention, it was both provided with for four communicating pipes on the outside of each filtered water tank, water on communicating pipe
The mouth of pipe is connected with gathering ground, and the effluent pipe mouth of communicating pipe is connected with clear water zone.
As the preferred solution of the present invention, access hole is provided with filtered water tank.
As the present invention preferred solution, the filtered water tank, siphon tube damage pipe, siphon tedge, siphon down-comer and
Auxiliary siphon tube is UPVC materials.
The beneficial effects of the invention are as follows：
Use environment is loose；Appearance and size is small, is not easy by environmental restrictions, easy to newly-built and reconstruction；
Modularized design：According to demands such as water flow, water quality, cycle periods, the quantity of filter flexibly can be set and adjusted；
Floor space is small：The relatively common filtration systems of one , Companion are concentrated to reduce 70% equivalent to by flocculation, clarification, filtering function；
Cross degree of filtration height, stable effluent quality：Unique reverse-flow filtering technique, removal efficiency, can be effective up to 98% in water
Solve water quality problem；
Power consumption saves：Designed without pressure, unique slight drag water distribution system, economize on electricity 70% -80% operating cost；
Without chemical contamination：Swimming pool does not have to chemical agent and the purification such as dosing coagulant, flocculation aid, attached algae agent, to health without
Potential threat；
Effectively remove man body pollution thing：The man body pollution thing such as urea, grease can be effectively removed, total dissolved solidss do not surpass in swimming pool
Mark, effectively avoids water body dissolved matter from forming potential threat to health；
Operating cost is cheap：Only 1/3-the 1/4 of normal fees, avoids largely changing water, and water-saving 90% energy saving 90%；
Cost of investment payoff period is short：Ordinary circumstance is only 1-2 years；
Intelligent work, save manpower：Manageability, easy to operate, easy care；
Usage time is grown：Full UPVC materials, nontoxic, corrosion-free, long lifespan was up to 40 years.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is front view of the present invention.
Fig. 2 is rearview of the present invention.
Fig. 3 is side view of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment, belongs to the scope of protection of the invention.
As shown in drawings, gravity installation intelligent control backwashing sewage water processing system, including aeration dissolved oxygen water knockout drum 3,
Drainage system and four groups of filter elements, every group of filter element are configured with one group of siphonic system, the aeration dissolved oxygen water knockout drum 3
In four groups of filter element central uppers.
During filtering, sewage is introduced into aeration dissolved oxygen water knockout drum 3 and is aerated the pernicious gas in sewage, while into
Row oxygenation operation, then into four groups of filter elements carry out purification filtering after discharge.
Further, every group of filter element includes water inlet pipe 1, outlet pipe 2 and filtered water tank 4, water inlet pipe 1 and aeration
Dissolved oxygen water knockout drum 3, siphonic system are connected, and aeration dissolved oxygen water knockout drum 3 is connected with filtered water tank 4, outlet pipe 2 and 4 phase of filtered water tank
Connection, is from top to bottom provided with clear water zone 6, inhalant region 7, filtering area 8 and gathering ground 9, siphonic system and row inside filtered water tank 4
Pond 5 is connected, and blowoff basin 5 is connected with sewage backwash pipe 10；Electrically operated valve is provided with water inlet pipe 1, in siphonic system
On be provided with auxiliary electric valve.
By set be aerated dissolved oxygen water knockout drum, sewage from water inlet pipe enter aeration dissolved oxygen water knockout drum in be aerated it is molten
Pernicious gas in sewage, is carried out explosion, then into the inhalant region of filtered water tank, and by positioned at inhalant region lower part by oxygen
Filtering area carry out filtration operation, the water after filtering entered in gathering ground, then by communicating pipe by the water in gathering ground
It is evacuated in filtered water tank, is finally flowed out from outlet pipe, to complete to filter upwards.
Specifically, the filtering area is formed by filtering tank interval, filtering tank includes tank body 23, is provided with the middle part of tank body 23
Filtering layer 24, supporting layer 25 is provided with 24 lower part of filtering layer.
Supporting layer 25 is used to be supported filtering layer, and sewage is filtered in tank body.
For filtered water purification is introduced in clear water zone, it was both provided with for four communicating pipes in the outside of each filtered water tank 4
26, communicating pipe, 26 upper hose mouth was connected with gathering ground 9, and the effluent pipe mouth of communicating pipe 26 is connected with clear water zone 6.
For convenience of to filtered water tank internal overhaul, access hole is provided with filtered water tank 4.
Preferably, the filtered water tank 4, siphon tube damage pipe 12, siphon tedge 11, siphon down-comer 13 and siphon auxiliary
Pipe 14 is UPVC materials.
Due to containing a large amount of impurity in sewage, when being filtered by filtering layer, which can remain in filtering layer surface, make
Block into filtering layer, so as to influence to filter, therefore set siphonic system with will pass through the principle of siphon by the water impurity on filtering layer into
Row is taken away.
Specifically, the siphonic system include being connected with inhalant region siphon tedge 11, be connected with siphon tedge
The siphon down-comer 13 connect, the water outlet of siphon down-comer 13 is communicated with blowoff basin 5, in siphon tedge 11 and siphon down-comer
Centre is equipped with auxiliary siphon tube 14 and siphon destructing tube 12.
To realize automatically controlling for backwash, electrically operated valve is provided with water inlet pipe 1, is provided with siphonic system auxiliary
Help electrically operated valve.
B1 electrically operated valves 15, B2 electrically operated valves 16, B3 motor-driven valves are separately installed with the water inlet pipe 1 of every group of filter element
17 and B4 of door electrically operated valves 18, are separately installed with A1 auxiliary electrics valve 19, A2 on the siphon destructing tube of four groups of filter elements
Auxiliary electric valve 20, A3 auxiliary electrics valve 21 and A4 auxiliary electrics valve 22, A1 auxiliary electrics valve 19 and B1 motor-driven valves
Door 15 is engaged, and A2 auxiliary electrics valve 20 is engaged with B2 electrically operated valves 16, A3 auxiliary electrics valve 21 and B3 electrically operated valves
17 are engaged, and A4 auxiliary electrics valve 22 is engaged with B4 electrically operated valves 18.
The present invention operation principle be：When normal filtration, sewage is entered in aeration dissolved oxygen water knockout drum 3 from water inlet pipe,
Carry out aeration dissolved oxygen, the pernicious gas in sewage carried out explosion, then into the inhalant region of filtered water tank, and by positioned at
The filtering area of inhalant region lower part carries out filtration operation, and the water after filtering is entered in gathering ground, then will be located at collection by communicating pipe
Water in pool is evacuated in filtered water tank upwards, is finally flowed out from outlet pipe, to complete to filter；When being backwashed, B1 is opened
Electrically operated valve 15, water are entered in siphon down-comer 13 from water inlet pipe, due to water by gravity to flow down, the band during stream
Inner air tube is walked, and carries out smoking to form siphon upwards by the contamination precipitation in filtering tank by siphon tedge, is entered back into
In siphon down-comer, flow downwardly into blowoff basin, and drained by sewage backwash pipe 10, when formation about three points of kinds of siphon
B1 electrically operated valves 15 are closed afterwards, to reserve enough time to take out sludge, are opened after the about three points of kinds of B1 electrically operated valves 15 are closed
A1 auxiliary electrics valve 19, air enters from siphon destructing tube, and the siphon of formation destroy and completes first filtering list
The backwash operation of member, and so on, the backwash operation of follow-up three filter elements of progress.
The present invention replaces being manually operated in the past with electrically operated valve it is cumbersome, make filtering more intelligence and automation, filtering imitate
Fruit and backwash effect are good, improve the service life of processing system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of gravity installation intelligent control backwashing sewage water processing system, including aeration dissolved oxygen water knockout drum（3）, drainage system
With four groups of filter elements, every group of filter element is configured with one group of siphonic system, the aeration dissolved oxygen water knockout drum（3）Positioned at four groups
Filter element central upper, it is characterised in that：Every group of filter element includes water inlet pipe（1）, outlet pipe（2）And filtered water tank
（4）, water inlet pipe（1）With being aerated dissolved oxygen water knockout drum（3）, siphonic system be connected, be aerated dissolved oxygen water knockout drum（3）With filtered water tank（4）
It is connected, outlet pipe（2）With filtered water tank（4）It is connected, in filtered water tank（4）Inside is from top to bottom provided with clear water zone（6）, water inlet
Area（7）, filtering area（8）And gathering ground（9）, siphonic system and blowoff basin（5）It is connected, blowoff basin（5）It is connected with backwash row
Dirt pipe（10）；In water inlet pipe（1）On be provided with electrically operated valve, auxiliary electric valve is provided with siphonic system.
2. gravity installation intelligent control backwashing sewage water processing system according to claim 1, it is characterised in that：It is described
Siphonic system includes the siphon tedge being connected with inhalant region（11）, the siphon down-comer that is connected with siphon tedge
（13）, siphon down-comer（13）Water outlet and blowoff basin（5）Communicate, in siphon tedge（11）Set among siphon down-comer
There is auxiliary siphon tube（14）And siphon destructing tube（12）.
3. gravity installation intelligent control backwashing sewage water processing system according to claim 2, it is characterised in that：Every
The water inlet pipe of group filter element（1）On be separately installed with B1 electrically operated valves（15）, B2 electrically operated valves（16）, B3 electrically operated valves（17）
With B4 electrically operated valves（18）, A1 auxiliary electric valves are separately installed with the siphon destructing tube of four groups of filter elements（19）、A2
Auxiliary electric valve（20）, A3 auxiliary electric valves（21）With A4 auxiliary electric valves（22）, A1 auxiliary electric valves（19）With
B1 electrically operated valves（15）It is engaged, A2 auxiliary electric valves（20）With B2 electrically operated valves（16）It is engaged, A3 auxiliary electric valves
（21）With B3 electrically operated valves（17）It is engaged, A4 auxiliary electric valves（22）With B4 electrically operated valves（18）It is engaged.
4. gravity installation intelligent control backwashing sewage water processing system according to claim 1, it is characterised in that：It is described
Filtering area is formed by filtering tank interval, and filtering tank includes tank body（23）, in tank body（23）Middle part is provided with filtering layer（24）, in filtering layer
（24）Lower part is provided with supporting layer（25）.
5. gravity installation intelligent control backwashing sewage water processing system according to claim 1, it is characterised in that：Every
A filtered water tank（4）Outside be both provided with for four communicating pipes（26）, communicating pipe（26）Upper hose mouth and gathering ground（9）It is connected,
Communicating pipe（26）Effluent pipe mouth and clear water zone（6）It is connected.
6. gravity installation intelligent control backwashing sewage water processing system according to claim 1, it is characterised in that：Clear
Water tank（4）On be provided with access hole.
7. gravity installation intelligent control backwashing sewage water processing system according to claim 2, it is characterised in that：It is described
Filtered water tank（4）, siphon tube damage pipe（12）, siphon tedge（11）, siphon down-comer（13）And auxiliary siphon tube（14）For
UPVC materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477917.0A CN107935273A (en) | 2017-12-29 | 2017-12-29 | Gravity installation intelligent control backwashing sewage water processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477917.0A CN107935273A (en) | 2017-12-29 | 2017-12-29 | Gravity installation intelligent control backwashing sewage water processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107935273A true CN107935273A (en) | 2018-04-20 |
Family
ID=61937951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711477917.0A Pending CN107935273A (en) | 2017-12-29 | 2017-12-29 | Gravity installation intelligent control backwashing sewage water processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107935273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726754A (en) * | 2018-07-23 | 2018-11-02 | 戴鹏 | A kind of river water purifier |
| CN113582355A (en) * | 2021-06-30 | 2021-11-02 | 华中农业大学 | Oxygenation device |
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| CN201678535U (en) * | 2010-08-18 | 2010-12-22 | 张留伟 | Hydraulic aeration fine filter |
| KR20120047198A (en) * | 2010-11-03 | 2012-05-11 | 막문턱 | Water filtration with automatic backwash |
| CN203144220U (en) * | 2013-03-26 | 2013-08-21 | 上海熙清环保工程有限公司 | Gravity type hydraulic aeration fine filter |
| KR101731949B1 (en) * | 2016-04-21 | 2017-05-25 | (주)동양화학 | Water purifier and backwash method having natural flowing type backwash |
| CN208022834U (en) * | 2017-12-29 | 2018-10-30 | 河南碧波环保设备有限公司 | Gravity installation intelligent control backwashing sewage water processing system |
-
2017
- 2017-12-29 CN CN201711477917.0A patent/CN107935273A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN201678535U (en) * | 2010-08-18 | 2010-12-22 | 张留伟 | Hydraulic aeration fine filter |
| KR20120047198A (en) * | 2010-11-03 | 2012-05-11 | 막문턱 | Water filtration with automatic backwash |
| CN203144220U (en) * | 2013-03-26 | 2013-08-21 | 上海熙清环保工程有限公司 | Gravity type hydraulic aeration fine filter |
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| Title |
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| 北京石油设计院，夏永明编: "《炼油污水过滤技术概述》", vol. 1, 31 July 1982, 中国建筑工业出版社, pages: 55 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726754A (en) * | 2018-07-23 | 2018-11-02 | 戴鹏 | A kind of river water purifier |
| CN108726754B (en) * | 2018-07-23 | 2023-07-25 | 戴鹏 | River course purifier |
| CN113582355A (en) * | 2021-06-30 | 2021-11-02 | 华中农业大学 | Oxygenation device |
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