CN107162323A - Treated sewage reusing sewage-treatment plant - Google Patents
Treated sewage reusing sewage-treatment plant Download PDFInfo
- Publication number
- CN107162323A CN107162323A CN201710396022.8A CN201710396022A CN107162323A CN 107162323 A CN107162323 A CN 107162323A CN 201710396022 A CN201710396022 A CN 201710396022A CN 107162323 A CN107162323 A CN 107162323A
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- Prior art keywords
- grid
- filter
- sewage
- pond
- treatment plant
- 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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Links
- 239000010865 sewage Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 27
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 230000001954 sterilising effect Effects 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000013268 sustained release Methods 0.000 claims description 3
- 239000012730 sustained-release form Substances 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 22
- 239000010802 sludge Substances 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- 241000894006 Bacteria Species 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000008213 purified water Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 235000009508 confectionery Nutrition 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052711 selenium Inorganic materials 0.000 description 3
- 239000011669 selenium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000011573 trace mineral Substances 0.000 description 3
- 235000013619 trace mineral Nutrition 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 238000005276 aerator Methods 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 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
- C02F9/00—Multistage 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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic 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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a kind of Treated sewage reusing sewage-treatment plant, including the septic tank being sequentially communicated by pipeline, grid filtering ponds, pre-denitration pond, anaerobic pond, anoxic pond, biochemical aeration tank and sterilization pool, grid filtering ponds are internally provided with more than two grid filters for sewage water filtration, each grid filter includes more than two points of Turbogrid plates, the side of more than two points of Turbogrid plates is hinged to form laciniation successively, the bottom of grid filtering ponds is provided with more than two grooves being serrated, grid filter is plugged in the groove, the grid gap of more than two grid filters is sequentially reduced, and the gap of the grid filter close to septic tank is more than the gap of the grid filter close to pre-denitration pond.The present invention can avoid impurity accumulation from preventing sewage water filtration, and can increase the area of filter and waste water so that sewage water filtration effect more preferably, also can effectively reduce the accumulation of sludge impurity.
Description
Technical field
The present invention relates to sewage treatment area, and in particular to a kind of Treated sewage reusing sewage-treatment plant.
Background technology
The sewage come out in sewage treatment area from septic tank the impurity containing substantial amounts of bulky grain and forms sludge mostly,
If sludge handle not in time will bulk deposition, influence in treatment effeciency, current most of sewage-treatment plants rear
Phase is filtered, so as to easily cause, intractability is big, and sludge is easily accumulated.
The content of the invention
It is an object of the invention to provide a kind of Treated sewage reusing sewage-treatment plant, solve in sewage treatment area from changing excrement
The sewage that pond comes out contains mostly to be carried out in more large granular impurity, current most of sewage-treatment plants in the later stage
Filter, so that easily cause intractability greatly, the problem of sludge is easily accumulated.
To solve above-mentioned technical problem, the present invention uses following technical scheme:
A kind of Treated sewage reusing sewage-treatment plant, including be sequentially communicated by pipeline septic tank, grid filtering ponds, pre- denitration
Pond, anaerobic pond, anoxic pond, biochemical aeration tank and sterilization pool, being internally provided with for grid filtering ponds are more than two for sewage
The grid filter of filtering, each grid filter includes more than two points of Turbogrid plates, more than two points of Turbogrid plates
Side is hinged to form laciniation successively, and the bottom of grid filtering ponds is provided with more than two grooves being serrated, grid
Filter is plugged in the groove respectively, and the grid gap of more than two grid filters is sequentially reduced, and is leaned on
The gap of the grid filter of nearly septic tank is more than the gap of the grid filter close to pre-denitration pond.The present invention passes through septic tank
Grid filtering ponds are set between pre-denitration pond, for being filtered to the sewage in septic tank, and in grid filtering ponds
Multilayer grid filter is set, different size of impurity particle is obstructed successively, while only one of which grid can also be avoided to filter
The impurity of various level sizes can not uniformly be obstructed during plate, impurity accumulation can also be avoided to prevent sewage water filtration;Sawtooth is set
The grid filter of shape, by increasing capacitance it is possible to increase the area of filter and waste water so that sewage water filtration effect more preferably, also can be effective
Reduce the accumulation of sludge impurity.
Preferably, anoxic pond and biochemical aeration tank bottom are equipped with aeration head, aeration head is connected with air blast by connecting tube
Valve is provided with machine, connecting tube.Air blower is that anoxic pond and biochemical aeration tank provide oxygen, the flow of convenient regulation oxygen.
Due to anoxic pond and biochemical aeration tank to oxygen the need for amount it is different, the valve at aerator air intake can be adjusted, so as to adjust
Section enters the gas flow in each pond.
Preferably, anoxic pond is connected with the bottom of biochemical aeration tank by pipeline, it is additionally provided with bio-aeration pool
Filter layer, filter layer sequentially consists of the first filter layer, active carbon layer, the second filter layer and sustained release material layer.Pass through mistake
Filtering layer effectively filters the minute impurities into bio-aeration pool, more effectively purifies water.
Preferably, it is to set shell to live in 2~5 microns of polypropylene fibre cotton filter membrane, active carbon layer that the first filter layer, which is aperture,
Property charcoal, the second filter layer is the microporous barrier that aperture is 0.45 micron, and quartz monzonite is set in slow-release material layer.Wherein the first mistake
Filtering layer can effectively filter out the insoluble particulates such as silt, the suspension in water;Active carbon layer both can be with more than in Adsorption water
Chlorine, pigment, organic pollution, while bacterium can also be killed, and the peculiar smell that can be gone in water removal, make water more sweet tasty;Second
Filter layer further filters out the impurity such as bacterium in water, heavy metal and superfine little particle, and slow-release material layer can then discharge zinc,
The trace element beneficial to human body such as potassium, selenium.
Preferably, being provided with agitating device in sterilization pool, agitating device includes agitating shaft and the setting being connected with motor
Mixing arm on agitating shaft, mixing arm is arranged on the end of agitating shaft and goed deep into below the liquid level in sterilization pool.Sterilization pool
It is interior to be carried out disinfection processing by adding chemicals, in order that sterilization is more thoroughly uniform, agitating device is set in sterilization pool.
Purified water is carried out disinfection by the mixing arm in agitating device, further increased water quality.
Preferably, motor is fixed on the top of sterilization pool and the motor connection solar cell by fixed support
Plate.Because agitating device needs motor to drive, to save the energy, solar cell can be connected on the support of fixed motor
Plate, is powered by solar energy to motor.
Compared with prior art, beneficial effects of the present invention are at least one of following:
1st, the present invention is by setting grid filtering ponds between septic tank and pre-denitration pond, for being carried out to the sewage in septic tank
Filter, and multilayer grid filter is set in grid filtering ponds, different size of impurity particle is obstructed successively, while can also
Avoid the impurity of various level sizes can not uniformly being obstructed during only one of which grid filter, impurity accumulation resistance can also be avoided
Only sewage water filtration;Jagged grid filter is set, by increasing capacitance it is possible to increase the area of filter and waste water so that sewage water filtration
Effect more preferably, also can effectively reduce the accumulation of sludge impurity.
2nd, the present invention effectively filters the minute impurities into bio-aeration pool by filter layer, more effectively purified water
Matter.Wherein the first filter layer can effectively filter out the insoluble particulates such as silt, the suspension in water;Active carbon layer can both be adsorbed
The chlorine residue gone in water removal, pigment, organic pollution, while bacterium can also be killed, and the peculiar smell that can be gone in water removal, make water sweeter
Sweet tea is tasty;Second filter layer further filters out the impurity such as bacterium in water, heavy metal and superfine little particle, and slow-release material layer is then
The trace element beneficial to human body such as zinc, potassium, selenium can be discharged.
3rd, carried out disinfection processing in sterilization pool of the invention by adding chemicals, in order that sterilization is more thoroughly equal
It is even, agitating device is set in sterilization pool.Purified water is carried out disinfection by the mixing arm in agitating device, water is further improved
Matter.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of the grid filter of the present invention.
Fig. 3 is the structural representation of the grid filtering ponds bottom of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1:
A kind of Treated sewage reusing sewage-treatment plant, including be sequentially communicated by pipeline septic tank 1, grid filtering ponds 2, pre- denitration
Pond 3, anaerobic pond 4, anoxic pond 5, biochemical aeration tank 6 and sterilization pool 7, grid filtering ponds 2 are internally provided with more than two use
In the grid filter 21 of sewage water filtration, each grid filter 21 includes more than two points of Turbogrid plates 23, two or more
The sides of point Turbogrid plates 23 be hinged to form laciniation successively, the bottoms of grid filtering ponds 2 is provided with more than two in sawing
The groove 22 of dentation, grid filter 21 is plugged in the groove 22, the grid of more than two grid filters 21
Gap is sequentially reduced, and grid filter of the gap more than close pre-denitration pond 3 of the grid filter 21 close to septic tank 1
21 gap.
The present embodiment is by setting grid filtering ponds between septic tank and pre-denitration pond, for entering to the sewage in septic tank
Row filtering, and multilayer grid filter is set in grid filtering ponds, different size of impurity particle is obstructed successively, while
It can avoid the impurity of various level sizes can not uniformly being obstructed during only one of which grid filter, impurity heap can also be avoided
Product prevents sewage water filtration;Jagged grid filter is set, by increasing capacitance it is possible to increase the area of filter and waste water so that sewage
Filter effect more preferably, also can effectively reduce the accumulation of sludge impurity.
Embodiment 2:
Optimized on the basis of embodiment 1, anoxic pond 5 and the bottom of biochemical aeration tank 6 are equipped with aeration head 51, aeration head 51
It is connected with by connecting tube in air blower 52, connecting tube and is provided with valve 53.
In the present embodiment, air blower is that anoxic pond and biochemical aeration tank provide oxygen, the flow of convenient regulation oxygen.Due to
Anoxic pond and biochemical aeration tank to oxygen the need for amount it is different, the valve at aerator air intake can be adjusted, thus adjust into
Enter the gas flow in each pond.
Embodiment 3:
Optimized on the basis of embodiment 2, anoxic pond 5 is connected with the bottom of biochemical aeration tank 6 by pipeline, biology exposes
Filter layer is additionally provided with gas pond 6, filter layer sequentially consists of the first filter layer 61, active carbon layer 62, the second filter layer
63 and sustained release material layer 64.
The present embodiment effectively filters the minute impurities into bio-aeration pool by filter layer, more effectively purified water
Matter.
Embodiment 4:
Optimized on the basis of embodiment 3, the first filter layer 61 is the polypropylene fibre cotton filter membrane that aperture is 2~5 microns, activated carbon
Active fruit shell carbon is set in layer 62, and the second filter layer 63 is setting in the microporous barrier that aperture is 0.45 micron, slow-release material layer 64
Quartz monzonite.
In the present embodiment, the first filter layer can effectively filter out the insoluble particulates such as silt, the suspension in water;Activated carbon
Layer while bacterium can also be killed, and be able to can be both gone in water removal with the chlorine residue in Adsorption water, pigment, organic pollution
Peculiar smell, makes water more sweet tasty;Second filter layer further filters out the impurity such as bacterium in water, heavy metal and superfine little particle,
And slow-release material layer can then discharge the trace element beneficial to human body such as zinc, potassium, selenium.
Embodiment 5:
Optimized on the basis of embodiment 4, agitating device is provided with sterilization pool 7, agitating device includes being connected with motor
Agitating shaft 71 and the mixing arm 72 that is arranged on agitating shaft 71, mixing arm 72 is arranged on the end of agitating shaft 71 and deeply disappears
Below liquid level in malicious pond 7.
Carried out disinfection processing in sterilization pool in the present embodiment by adding chemicals, in order that sterilization is more thoroughly equal
It is even, agitating device is set in sterilization pool.Purified water is carried out disinfection by the mixing arm in agitating device, water is further improved
Matter.
Embodiment 6:
Optimized on the basis of embodiment 5, motor is fixed on the top of sterilization pool 7 and the electricity by fixed support 8
Machine connects solar panel 73.
Because agitating device needs motor to drive, to save the energy, the present embodiment is connected too on the support of fixed motor
Positive energy cell panel, is powered by solar energy to motor.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, can in the range of disclosure, drawings and claims
A variety of variations and modifications are carried out with the building block to theme composite configuration and/or layout.Except to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also will be apparent.
Claims (6)
1. a kind of Treated sewage reusing sewage-treatment plant, it is characterised in that:Including the septic tank being sequentially communicated by pipeline(1), grid
Lattice filtering ponds(2), pre-denitration pond(3), anaerobic pond(4), anoxic pond(5), biochemical aeration tank(6)And sterilization pool(7),
The grid filtering ponds(2)Be internally provided with more than two grid filters for sewage water filtration(21), each
The grid filter(21)Include more than two points of Turbogrid plates(23), more than two described point of Turbogrid plates(23)Side
Side is hinged to form laciniation successively,
The grid filtering ponds(2)Bottom be provided with more than two grooves being serrated(22), the grid filter
(21)The groove is plugged on respectively(22)It is interior,
More than two grid filters(21)Grid gap be sequentially reduced, and close to septic tank(1)Grid mistake
Filter plate(21)Gap be more than close to pre-denitration pond(3)Grid filter(21)Gap.
2. Treated sewage reusing sewage-treatment plant according to claim 1, it is characterised in that:The anoxic pond(5)And biochemistry
Aeration tank(6)Bottom is equipped with aeration head(51), the aeration head(51)Air blower is connected with by connecting tube(52), the connection
Valve is provided with pipe(53).
3. Treated sewage reusing sewage-treatment plant according to claim 1, it is characterised in that:The anoxic pond(5)With biochemistry
Aeration tank(6)Bottom be connected by pipeline, the bio-aeration pool(6)Inside be additionally provided with filter layer, the filter layer from
Under supreme be followed successively by the first filter layer(61), active carbon layer(62), the second filter layer(63)With sustained release material layer(64).
4. Treated sewage reusing sewage-treatment plant according to claim 3, it is characterised in that:First filter layer(61)For
Aperture is 2~5 microns of polypropylene fibre cotton filter membrane, the active carbon layer(62)Middle setting active fruit shell carbon, second filter layer
(63)For the microporous barrier that aperture is 0.45 micron, the slow-release material layer(64)Middle setting quartz monzonite.
5. Treated sewage reusing sewage-treatment plant according to claim 1, it is characterised in that:The sterilization pool(7)It is interior to set
There is agitating device, the agitating device includes the agitating shaft being connected with motor(71)Be arranged on agitating shaft(71)On mixing arm
(72), the mixing arm(72)Installed in agitating shaft(71)End and go deep into sterilization pool(7)In liquid level below.
6. Treated sewage reusing sewage-treatment plant according to claim 5, it is characterised in that:The motor passes through fixed support
(8)It is fixed on sterilization pool(7)Top and the motor connection solar panel(73).
Priority Applications (1)
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CN201710396022.8A CN107162323A (en) | 2017-05-31 | 2017-05-31 | Treated sewage reusing sewage-treatment plant |
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CN201710396022.8A CN107162323A (en) | 2017-05-31 | 2017-05-31 | Treated sewage reusing sewage-treatment plant |
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Family
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Cited By (1)
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---|---|---|---|---|
CN107285508A (en) * | 2017-06-12 | 2017-10-24 | 四川奥恒环保科技有限公司 | High salinity oil extraction Waste Water Treatment |
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CN107285508A (en) * | 2017-06-12 | 2017-10-24 | 四川奥恒环保科技有限公司 | High salinity oil extraction Waste Water Treatment |
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