CN108341508A - A kind of sewage disposal device for river channel - Google Patents
A kind of sewage disposal device for river channel Download PDFInfo
- Publication number
- CN108341508A CN108341508A CN201810348204.2A CN201810348204A CN108341508A CN 108341508 A CN108341508 A CN 108341508A CN 201810348204 A CN201810348204 A CN 201810348204A CN 108341508 A CN108341508 A CN 108341508A
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- Prior art keywords
- sewage disposal
- layer
- filter screen
- purification
- filtration
- 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.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 62
- 238000000746 purification Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000001954 sterilising effect Effects 0.000 claims abstract description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 14
- 238000011109 contamination Methods 0.000 claims abstract description 10
- 239000000706 filtrate Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229920001967 Metal rubber Polymers 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003830 anthracite Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 3
- 239000010842 industrial wastewater Substances 0.000 description 12
- 238000004065 wastewater treatment Methods 0.000 description 8
- 238000011282 treatment Methods 0.000 description 7
- 238000003911 water pollution Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- 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
- C02F2303/04—Disinfection
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)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of sewage disposal device for river channel, including main body of removing contamination, it links together with water channel entrance on the left of the main body of removing contamination, and water channel entrance lower right-hand side installs filter screen, it is connected with sewage disposal apparatus on the right side of the filter screen, and it links together with filtration, purification layer on the right side of sewage disposal apparatus, it is provided with filtrate below the filtration, purification layer, and filtration, purification layer top side is fixedly connected with water pipe, pulsating pump is installed on the right side of the water pipe, and it is connected with sterilization pool by water pipe below pulsating pump, the sterilization pool bottom is provided with air blower, the sewage disposal apparatus includes sealing cover, first layer purifies, two layers of filter screen, screen pipe and sandstone filter layer.The present invention by the setting of filter screen, sterilization pool and sewage disposal apparatus, be conducive to can preferably sewage disposal, energy conservation and environmental protection is pollution-free, improves environmentally friendly efficiency, reaches optimization process effect, to consummating function diversity.
Description
Technical field
The present invention relates to environmental technology field, specially a kind of sewage disposal device for river channel.
Background technology
Urban wastewater treatment is the important component of Government public services, has very strong public welfare；Sewage disposal is again
It is the strong industry of technical comparison, the development of industry be unable to do without the progress of technology, also be unable to do without the correct guiding of relevant policies.
House town and country construction portion is that the industry of China's urban wastewater treatment instructs department, has successively put into effect many normative texts for many years
Part pushes urban wastewater treatment industry to continue to develop.
The characteristics of China's town sewage the discharges amount of being is big, and as Urbanization Progress is in ascendant trend year by year, while accounting for complete
The ratio of state's wastewater emission amount is maximum.China's town domestic sewage discharge capacity is 54,500,000,000 tons within 2015, increases by 6% on a year-on-year basis, accounts for
The 71.4% of annual total amount of sewage discharge.Average speedup with reference to 2011-2015 is 6%, indeed it is contemplated that, 2016-2020
Town domestic sewage discharge capacity will keep 6% growth rate.As China's economy is constantly in progress, the continuation of urbanization process
It promotes, town domestic sewage becomes the ever-increasing main source of China's wastewater discharge.The newly-increased part processing of town sewage needs
Ask big.
2015,201.5 hundred million tons of discharged volume of industrial waste water fell 2% on a year-on-year basis, and discharge capacity declines for continuous 5 years,
Average fall according to past 5 years is 2%, indeed it is contemplated that, 2016-2020 discharged volume of industrial waste water will keep 2%
Downward trend.Although discharged volume of industrial waste water is reduced, radix is still very huge.Meanwhile compared with sanitary sewage,
Industrial wastewater will produce very serious harm to natural environment and living environment, be mainly manifested in, industrial wastewater inflow river,
Polluted surface water and periphery ecological environment are understood in lake, and industrial wastewater, which permeates the ground, understands polluted underground water, if people make in life
With contaminated surface water or underground water, it will jeopardize health, industrial wastewater, which gos deep into soil, can cause soil pollution, separately
Harmful substance in outer industrial wastewater can also remain in animal and plant body, enter human body eventually by food chain, to health of people
It causes damages.Therefore rationally disposal of commercial waste water is very important.
Industrial wastewater discharge industry distribution is more concentrated.Presently electric power, petrochemical industry, weaving, papermaking and field of metallurgy are
The major downstream market of Treatment of Industrial Water.The end of the year 2015, papermaking and paper products industry, chemical raw material and chemical product manufacturing, spinning
The industrial wastewater discharge accounting of industry, coal mining and washing industry is knitted up to 47.1%.Since related industries enterprise object more disperses
And supervisory system construction is not in place, government regulation and the roads technological transformation Ti Biaoliangtiao are outflanked, and could be contained that industry waste water not up to standard is stolen and be arranged
It is seriously polluted caused by omitting in printing.
Industrial Wastewater Treatment market is expected to continue high-volume.By the end of the year 2015, China's Industrial Waste Water Treatments daily handling ability
2.93 hundred million tons, facility operation expense reaches 73,600,000,000 yuan.It is envisaged that under fright of the national unprecedented supervision with punishment, greatly
Amount industrial enterprise will propose mark transformation by sewage reduces blowdown cost, while industry water disposition third party's operation is fully under way, has
Hope bring market it is rapid high-volume.According to 2000 yuan/ton of industry water processed in units facility construction cost, 2 yuan/ton of meters of operating cost
It calculates, it is assumed that wherein 10% facility carries out proposing mark transformation, and wherein third party runs ratio and is promoted to 36% by current 20%,
The corresponding market space of the year two thousand twenty is 50,000,000,000, and wherein third party's operation market scale is up to 18,000,000,000.
There is larger gaps with urban area for rural sewage treatment, and it is endless that rural area sewage carries treatment facility
Kind, the problems such as wastewater treatment rate is low.2015 end of the years, 428.8 billion cubic meter of National urban year sewage disposal total amount, municipal sewage
Handling rate 92%；National 78.9 billion cubic meter of county town whole year sewage disposal total amount, wastewater treatment rate 85% increase by 3.1 compared with last year
Percentage point.And in terms of rural sewage treatment, the organizational system village sanitary sewage in the whole nation only 22% is handled at present, handling rate
It is low, it would be highly desirable to improve.
Therefore, China's water resource is nervous, the situation is tense and national economy sustainable growth, living standards of the people for water pollution control
Contradiction between being gradually increased is increasingly prominent, and it is sustainable that water pollution, shortage of water resources have become China's economic society realization
The serious restraining factors of development.Country constantly promotes the attention degree and supporting dynamics of environmental protection industry (epi), sewage treatment industry
It is developed rapidly.
Urban wastewater treatment and regeneration facility are the indispensable infrastructure of town development, are economic developments, occupy
The important leverage of the safe and healthy life of the people.Sewage disposal, the water quality for draining a certain water body to make sewage reach or reusing are wanted
The process purified to it, sewage disposal is asked to be widely used in building, agricultural, traffic, the energy, petrochemical industry, environmental protection, city scape
The every field such as sight, medical treatment, food and drink, also come into the daily life of common people more and more, and the topic about water pollution is not
Disconnected to be raised, especially underground water pollution problem, the ground such as Zhejiang Hangzhou, Wenzhou have peasant or enterpriser to provide funds to ask environmentally friendly chief
Swim in the river, everybody concern to water pollution severity caused with this, although each environmental protection chief all selected silence or
Person refuses, but the awakening of common people's environmental consciousness, has reached unprecedented to the degree deeply concerned of water pollution.
But that there are functions is not perfect for existing sewage disposal device for river channel, treatment and purification is not thorough, and environment protecting difference is asked
Topic.
Invention content
To achieve the goals above, present invention employs following technical solutions：A kind of sewage disposal device for river channel, including the master that removes contamination
Body, the main body left side of removing contamination links together with water channel entrance, and water channel entrance lower right-hand side installs filter screen, the filtering
Net right side is connected with sewage disposal apparatus, and links together with filtration, purification layer on the right side of sewage disposal apparatus, below the filtration, purification layer
It is provided with filtrate, and filtration, purification layer top side is fixedly connected with water pipe, pulsating pump is installed, and absorb water on the right side of the water pipe
Pump lower section is connected by water pipe with sterilization pool, and the sterilization pool bottom is provided with air blower, the sewage disposal apparatus include sealing cover,
First layer purification, two layers of filter screen, screen pipe and sandstone filter layer, the sealing cover are arranged in the outside of sandstone filter layer, institute
It states first layer purification to be arranged on the right side of sandstone filter layer, two layers of filter screen setting is inside first layer purification, the mistake
Chimney filter is arranged in the outside of two layers of filter screen.
Preferably, the sewage disposal apparatus is purified by first layer and is used cooperatively with two layers of filter screen, two layers of filter screen
A metal-rubber filter screen is specifically used, filtration, purification is conducive to, is flexibly used.
Preferably, the sewage disposal apparatus is used cooperatively by screen pipe and sandstone filter layer, is conducive to energy conservation and environmental protection, no dirt
Dye.
Preferably, the filter screen is used cooperatively with filtrate, and is filtered net surface and be equipped with granular activated carbon, is conducive to handle
Thoroughly, working efficiency is improved.
Preferably, the filtration, purification layer is used cooperatively with sterilization pool, and filtration, purification layer be internally provided with quartz sand filter media,
ANTHRACITE FILTER MEDIA, aluminium polychloride and fiber-ball filter media, be conducive to it is simple and convenient, to consummating function diversity.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention passes through filter screen, sterilization pool and sewage disposal apparatus
Setting, be conducive to can preferably sewage disposal, energy conservation and environmental protection is pollution-free, improves environmentally friendly efficiency, reaches optimization process effect,
To consummating function diversity.
Description of the drawings
Fig. 1 is a kind of sewage disposal device for river channel structural schematic diagram proposed by the present invention；
Fig. 2 is sewage disposal apparatus structural schematic diagram proposed by the present invention.
In figure：1- remove contamination main body, 2- filter screens, 3- sewage disposal apparatus, 31- sealing covers, 32- first layers purification, bis- layers of 33-
Filter screen, 34- screen pipes, 35- sandstones filter layer, 4- filtration, purifications layer, 5- water pipes, 6- pulsating pumps, 7- sterilization pools, 8- air blast
Machine, 9- filtrates, 10- water channel entrances.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- Fig. 2 is please referred to Fig.1, the present invention provides a kind of technical solution：A kind of sewage disposal device for river channel, including main body 1 of removing contamination,
1 left side of main body of removing contamination links together with water channel entrance 10, and 10 lower right-hand side of water channel entrance installs filter screen 2, and filter screen 2 is right
Side is connected with sewage disposal apparatus 3, and 3 right side of sewage disposal apparatus links together with filtration, purification layer 4, the 4 lower section setting of filtration, purification layer
There is filtrate 9, and 4 top side of filtration, purification layer is fixedly connected with water pipe 5,5 right side of water pipe is equipped with pulsating pump 6, and pulsating pump 6
Lower section is connected by water pipe 5 with sterilization pool 7, and 7 bottom of sterilization pool is provided with air blower 8, and sewage disposal apparatus 3 includes sealing cover 31, the
One layer of purification, 32, two layers of filter screen 33, screen pipe 34 and sandstone filter layer 35, sealing cover 31 are arranged in the outer of sandstone filter layer 35
Portion, first layer purification 32 are arranged on the right side of sandstone filter layer 35, and two layers of setting of filter screen 33 are purified in first layer inside 32,
Screen pipe 34 is arranged in the outside of two layers of filter screen 33, and sewage disposal apparatus 3 is coordinated by first layer purification 32 and two layers of filter screen 33
It uses, two layers of filter screen 33 specifically use a metal-rubber filter screen, sewage disposal apparatus 3 to be filtered by screen pipe 34 and sandstone
Layer 35 is used cooperatively, and filter screen 2 is used cooperatively with filtrate 9, and 2 surface of filter screen is equipped with granular activated carbon, filtration, purification layer 4
It is used cooperatively with sterilization pool 7, and filtration, purification layer 4 is internally provided with quartz sand filter media, ANTHRACITE FILTER MEDIA, aluminium polychloride and fiber
Ball filtering material.
Operation principle：In use, purifying sewage using sewage disposal apparatus 3, match with two layers of filter screen 33 in first layer purification 32
Close use lower purification, it is with obvious effects, by one layer of screen pipe 34 and 35 complement filter of sandstone filter layer, filtration, purification layer 4 with disappear
7 purifying sterilizing of malicious pond, under the mutual cooperation of water pipe 5 and pulsating pump 6 can preferably sewage disposal, energy conservation and environmental protection is pollution-free,
Environmentally friendly efficiency is improved, optimization process effect is reached, to consummating function diversity.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (8)
1. a kind of sewage disposal device for river channel, including main body of removing contamination (1), it is characterised in that：Enter with water channel on the left of the main body of removing contamination (1)
Mouthful (10) link together, and water channel entrance (10) lower right-hand side installation filter screen (2), on the right side of the filter screen (2) with remove contamination
Device (3) is connected, and links together with filtration, purification layer (4) on the right side of sewage disposal apparatus (3), below the filtration, purification layer (4)
It is provided with filtrate (9), and filtration, purification layer (4) top side is fixedly connected with water pipe (5), is equipped on the right side of the water pipe (5)
Pulsating pump (6), and be connected with sterilization pool (7) by water pipe (5) below pulsating pump (6), sterilization pool (7) bottom is provided with drum
Wind turbine (8), the sewage disposal apparatus (3) include sealing cover (31), first layer purification (32), two layers of filter screen (33), screen pipe
(34) it is arranged in the outside of sandstone filter layer (35), the first layer purification with sandstone filter layer (35), the sealing cover (31)
(32) setting is on the right side of sandstone filter layer (35), and two layers of filter screen (33) setting is internal in first layer purification (32), institute
Screen pipe (34) is stated to be arranged in the outside of two layers of filter screen (33).
2. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that the sewage disposal apparatus (3) passes through first
Layer purification (32) is used cooperatively with two layers of filter screen (33).
3. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that two layers of filter screen (33) is specifically adopted
With a metal-rubber filter screen.
4. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that the sewage disposal apparatus (3) passes through filtering
Pipe (34) is used cooperatively with sandstone filter layer (35).
5. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that the filter screen (2) is matched with filtrate (9)
It closes and uses.
6. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that filter screen (2) surface be equipped with
Grain activated carbon.
7. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that the filtration, purification layer (4) and disinfection
Pond (7) is used cooperatively.
8. a kind of sewage disposal device for river channel according to claim 1, which is characterized in that set inside the filtration, purification layer (4)
There are quartz sand filter media, ANTHRACITE FILTER MEDIA, aluminium polychloride and fiber-ball filter media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348204.2A CN108341508A (en) | 2018-04-20 | 2018-04-20 | A kind of sewage disposal device for river channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348204.2A CN108341508A (en) | 2018-04-20 | 2018-04-20 | A kind of sewage disposal device for river channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108341508A true CN108341508A (en) | 2018-07-31 |
Family
ID=62954878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810348204.2A Pending CN108341508A (en) | 2018-04-20 | 2018-04-20 | A kind of sewage disposal device for river channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108341508A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202785863U (en) * | 2012-08-29 | 2013-03-13 | 车玉萍 | Small-type domestic sewage filtering and purifying pond |
| CN205045955U (en) * | 2015-09-21 | 2016-02-24 | 天津硕远生物科技有限公司 | Novel biotechnology sewage purification based on multiple purification structure device |
| CN206142929U (en) * | 2016-08-30 | 2017-05-03 | 广州方洲环保科技有限公司 | A tertiary filtration purification device for sewage purification |
| CN206705901U (en) * | 2017-03-29 | 2017-12-05 | 惠州市恒源环保技术开发有限公司 | A kind of sewage disposal device with multi-filtering function |
| CN208667279U (en) * | 2018-04-20 | 2019-03-29 | 北方民族大学 | A kind of sewage disposal device for river channel |
-
2018
- 2018-04-20 CN CN201810348204.2A patent/CN108341508A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202785863U (en) * | 2012-08-29 | 2013-03-13 | 车玉萍 | Small-type domestic sewage filtering and purifying pond |
| CN205045955U (en) * | 2015-09-21 | 2016-02-24 | 天津硕远生物科技有限公司 | Novel biotechnology sewage purification based on multiple purification structure device |
| CN206142929U (en) * | 2016-08-30 | 2017-05-03 | 广州方洲环保科技有限公司 | A tertiary filtration purification device for sewage purification |
| CN206705901U (en) * | 2017-03-29 | 2017-12-05 | 惠州市恒源环保技术开发有限公司 | A kind of sewage disposal device with multi-filtering function |
| CN208667279U (en) * | 2018-04-20 | 2019-03-29 | 北方民族大学 | A kind of sewage disposal device for river channel |
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Application publication date: 20180731 |
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