CN108862890A - A kind of sewage-treatment plant with sludge recycling - Google Patents
A kind of sewage-treatment plant with sludge recycling Download PDFInfo
- Publication number
- CN108862890A CN108862890A CN201810786818.9A CN201810786818A CN108862890A CN 108862890 A CN108862890 A CN 108862890A CN 201810786818 A CN201810786818 A CN 201810786818A CN 108862890 A CN108862890 A CN 108862890A
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- Prior art keywords
- sewage
- pond
- water purification
- water inlet
- solar panel
- 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 31
- 239000010802 sludge Substances 0.000 title claims abstract description 17
- 238000004064 recycling Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000000746 purification Methods 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 13
- 230000001954 sterilising effect Effects 0.000 claims abstract description 12
- 230000002070 germicidal effect Effects 0.000 claims abstract description 3
- 244000005700 microbiome Species 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005276 aerator Methods 0.000 description 3
- 230000004103 aerobic respiration Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction 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
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
-
- 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
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
-
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention discloses a kind of sewage-treatment plants with sludge recycling, belong to sewage treatment field.A kind of sewage-treatment plant with sludge recycling, including water inlet pipe, further include the coarse filtration pond being sequentially communicated, thin filtering ponds, anaerobic pond, the first anoxic pond, the second anoxic pond, aerobic tank, membrane cisterna and outlet pipe；The water purification water inlet of the outlet pipe other end connection centrifugal filter device, centrifugal filter device includes purifier；Ultraviolet sterilization apparatus is provided in the outlet pipe, the ultraviolet sterilization apparatus is made of solar panel, battery and ultraviolet germicidal lamp；Sewage passes through a series for the treatment of process of sewage, to realize the degree of purification for improving sewage to the purified treatment in all directions of sewage.
Description
Technical field
The present invention relates to sewage treatment fields, more specifically to a kind of sewage-treatment plant with sludge recycling.
Background technique
The effect of aerobic tank is that activated sludge is allowed to carry out aerobic respiration, and organic matter is further resolved into inorganic matter, is removed
The function of pollutant, it can be just micro- in this way that running, which is that other of oxygen content to be controlled and microorganism respectively need the best of condition,
Biology has the carry out aerobic respiration of greatest benefit；Anaerobic Treatment is the effect using anaerobic bacteria, removes the organic matter in waste water,
It is generally necessary to which the time is longer, anaerobic processes can be divided into hydrolysis stage, acidification stage and methanation stage；
Anoxic pond is with respect to the biochemical system for for anaerobic and aerobic, generally referring to dissolved oxygen control between 0.2-0.5mg/l；
It, can be in the pond when there are the organic matter of a large amount of nitrate, nitrite and abundance（Area）Interior progress denitrification denitrogenation reaction；
In sewage disposal process, pond can be deposited in due to the silt carried in sewage and by the sludge that flocculant generates
Bottom, and it is more difficult during processing doped with the sewage of sludge, because sludge can block fenestra, cause siltation to block
Pipeline.
Summary of the invention
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of sewage-treatment plant with sludge recycling, including water inlet pipe, further include the coarse filtration pond being sequentially communicated, thin mistake
Filter tank, anaerobic pond, the first anoxic pond, the second anoxic pond, aerobic tank, membrane cisterna and outlet pipe, described water inlet pipe one end connect dirty
Pond, the other end are connected to coarse filtration pond, and the aerobic tank is connected with the first anoxic pond and the second anoxic pond respectively by return pipe
It is logical, it is provided with aerator below the membrane cisterna, the membrane cisterna is internally provided with medicament packet, the thin filtering ponds and detests
It is connected between oxygen pond by thin filter pipe；
The water purification water inlet of the outlet pipe other end connection centrifugal filter device, centrifugal filter device includes purifier,
The purifier bottom end is provided with water purification outlet, is threadedly coupled arch cover, the arch above the purifier
It is provided with water purification water inlet right above cover, the inner bottom of the purifier is fixedly connected with one end of support frame, described
The other end of support frame is fixedly connected with motor, and the motor is by rotating axis connection turntable, and square thread connects on the turntable
It is connected to the water purification cover of arch, by hollow metal layer outside the water purification cover, inside is purifying layer, the middle of the turntable
It is provided with a round fixed block, the surrounding of the round fixed block is fixedly connected with one end of multiple springs, the spring
The other end be fixedly connected with porous immobilized microorganism ball；
Ultraviolet sterilization apparatus is provided in the outlet pipe, the ultraviolet sterilization apparatus is by solar panel, storage
Battery and ultraviolet germicidal lamp composition, the solar panel are electrically connected battery, and the battery electrical connection is ultraviolet
Line sterilization, the solar panel be circle, circular edge be arranged at equal intervals there are four photo resistance, the sun
Energy solar panel is connected on support column by rotating device, and the photo resistance connects single-chip microcontroller, and the battery is also electrically connected
Connect rotating device and single-chip microcontroller.
Preferably, the photo resistance each includes a spare photo resistance.
Preferably, beam condensing unit is provided with above the photo resistance.
Beneficial effect
Compared with the prior art, the advantage of the invention is that：Sewage passes through a series for the treatment of process of sewage, to realize to dirt
The purified treatment in all directions of water improves the degree of purification of sewage.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of membrane cisterna of the present invention；
Fig. 3 is the structural schematic diagram of centrifugal filter device of the present invention；
Fig. 4 is the round fixed block of the present invention, spring and porous immobilized microorganism ball attachment structure schematic diagram；
Fig. 5 is the structural schematic diagram of solar panel of the present invention.
Figure label explanation：
1, coarse filtration pond；2, thin filtering ponds；3, anaerobic pond；4, the first anoxic pond；5, the second anoxic pond；6, aerobic tank；7, membrane cisterna；
8, outlet pipe；9, centrifugal filter device；10, purifier；11, water purification outlet；12, arch cover；13, water purification water inlet；14, it props up
Support；15, motor is connected；16, rotary shaft；17, turntable；18, water purification cover；19, hollow metal layer；20, purifying layer；21, round
Fixed block；22, spring；23, porous immobilized microorganism ball；24, solar panel；25, photo resistance；26, rotating device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously；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；It shall fall within the protection scope of the present invention.
Embodiment 1：
Fig. 1-5, a kind of sewage-treatment plant with sludge recycling, including water inlet pipe are please referred to, further includes the thick mistake being sequentially communicated
Filter tank 1, thin filtering ponds 2, anaerobic pond 3, the first anoxic pond 4, the second anoxic pond 5, aerobic tank 6, membrane cisterna 7 and outlet pipe 8, water inlet pipe
One end connects cesspool, and the other end is connected to coarse filtration pond 1, and aerobic tank 6 is lacked with the first anoxic pond 4 and second respectively by return pipe
Oxygen pond 5 is connected to, and is provided with aerator below membrane cisterna 7, and membrane cisterna 7 is internally provided with medicament packet, thin filtering ponds 2 and anaerobic pond 3 it
Between connected by thin filter pipe；
8 other end of outlet pipe connects the water purification water inlet 13 of centrifugal filter device 9, and centrifugal filter device 9 includes purifier 10,
10 bottom end of purifier is provided with water purification outlet 11, and arch cover 12,12 surface of arch cover are threadedly coupled above purifier 10
Be provided with water purification water inlet 13, the inner bottom of purifier 10 is fixedly connected with one end of support frame 14, support frame 14 it is another
End is fixedly connected with motor 15, and motor 15 connects turntable 17 by rotary shaft 16, the water purification cover of arch is threaded with above turntable
18, by hollow metal layer 19 outside water purification cover 18, inside is purifying layer 20, the middle of turntable 17 be provided with one it is round fixed
Block 21, the surrounding of round fixed block 21 are fixedly connected with one end of multiple springs 22, and the other end of spring 22 is fixedly connected porous solid
Surely change microorganism ball 23；
It is provided with ultraviolet sterilization apparatus in outlet pipe 8, ultraviolet sterilization apparatus is by solar panel 24, battery and ultraviolet
Line bactericidal lamp composition, solar panel 24 are electrically connected battery, and battery is electrically connected ultraviolet sterilization, solar panel 24
For circle, it is arranged at equal intervals in circular edge there are four photo resistance 25, solar panel 24 passes through rotating device
On 26 connection support columns, photo resistance 25 connects single-chip microcontroller, and battery is also electrically connected rotating device 26 and single-chip microcontroller.
Sewage bottom of pond portion is connected to sludge pipe.
Beam condensing unit is provided with above photo resistance 25.
Working principle：
Sewage in cesspool enters coarse filtration pond 1 by water inlet pipe, thus outside by the contaminant exclusion of bulky grain, then
Sewage enters thin filtering ponds 2, so that the relatively fine particulate pollutant in sewage be excluded, then sewage enters anaerobic pond
In 3, the anaerobic bacteria in anaerobic pond 3 removes the organic matter in waste water by hydrolysis stage, acidification stage and methanation stage,
Subsequently into the first anoxic pond 4, to carry out denitrification denitrogenation reaction；Then sewage enters in the second anoxic pond 5, again
Carry out denitrification denitrogenation reaction；Then into aerobic tank 6, activated sludge is allowed to carry out aerobic respiration, further organic matter point
Solution enters in membrane cisterna 7 later at inorganic matter, is further purified sewage by the effect of filter membrane, and purified water is by going out
Water pipe 8 is discharged, and the part of contaminated water in aerobic tank 6 is crossed return pipe and is connected to respectively with the first anoxic pond 4 and the second anoxic pond 5, thus
Denitrification denitrogenation reaction repeatedly is carried out, realizes that purification is more thorough, aerator is provided with below the membrane cisterna 7, to dirt
Water is aerated, and oxygen content is increased, and the water that will be discharged after filter membrane purifies passes through medicament packet, contains disinfection in medicament packet
The medicament of sterilization, to make the sewage of discharge can be realized workable degree；
The sewage to fall from outlet pipe 8, is dropped into centrifugal filter device 9, motor ceaselessly passes through by water purification water inlet 13
Rotary turnplate 17 generates centrifugal force, makes that water passes sequentially through hollow metal layer 19 and purifying layer 20 is thrown on arch cover 12, then from
It is slipped on arch cover 12 in purifier 10, then is discharged from water purification outlet 11, during centrifugation, the centre of turntable 17 is set
It is equipped with round fixed block 21, round fixed block 21 connects porous immobilized microorganism ball 23 by connecting multiple springs 22, fixed
On the one hand water can preferably be disturbed in the course of rotation by changing the porous structure of microorganism ball 23, and can be in the mistake of disturbance
The effect of aeration is generated in journey, in addition, can preferably realize the aeration effect to water by the revolving speed of control motor.
When sunlight is irradiated in four photo resistance, four photo resistance perception are looked after intensity and are different, and at this time will
Information is sent to single-chip microcontroller, and single-chip microcontroller carries out control rotating device and rotated, until intensity is looked after in four photo resistance perception
Be it is identical, solar panel at this time makes solar panel be in electricity production always maximum perpendicular to sunray
State.
It is described above；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；
Anyone skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change；It should be covered by the scope of protection of the present invention.
Claims (3)
1. a kind of sewage-treatment plant with sludge recycling, including water inlet pipe, it is characterised in that：It further include the thick mistake being sequentially communicated
Filter tank（1）, thin filtering ponds（2）, anaerobic pond（3）, the first anoxic pond（4）, the second anoxic pond（5）, aerobic tank（6）, membrane cisterna（7）With
Outlet pipe（8）, described water inlet pipe one end connects cesspool, other end connection coarse filtration pond（1）, the aerobic tank（6）It is logical
Cross return pipe respectively with the first anoxic pond（4）With the second anoxic pond（5）Connection, the membrane cisterna（7）Lower section is provided with aeration dress
It sets, the membrane cisterna（7）It is internally provided with medicament packet, the thin filtering ponds（2）And anaerobic pond（3）Between pass through thin screen pipe
Road connection；
The outlet pipe（8）The other end connects centrifugal filter device（9）Water purification water inlet（13）, centrifugal filter device（9）
Including purifier（10）, the purifier（10）Bottom end is provided with water purification outlet（11）, the purifier（10）
Top is threadedly coupled arch cover（12）, the arch cover（12）Surface is provided with water purification water inlet（13）, the water purification
Device（10）Inner bottom be fixedly connected with support frame（14）One end, the support frame（14）The other end be fixedly connected with electricity
Machine（15）, the motor（15）Pass through rotary shaft（16）Connect turntable（17）, the turntable top is threaded with arch
Water purification cover（18）, the water purification cover（18）Outside is by hollow metal layer（19）, inside is purifying layer（20）, the turntable
（17）Middle be provided with a round fixed block（21）, the round fixed block（21）Surrounding be fixedly connected with multiple bullets
Spring（22）One end, the spring（22）The other end be fixedly connected with porous immobilized microorganism ball（23）；
The outlet pipe（8）It is inside provided with ultraviolet sterilization apparatus, the ultraviolet sterilization apparatus is by solar panel
（24）, battery and ultraviolet germicidal lamp composition, the solar panel（24）It is electrically connected battery, the battery
It is electrically connected ultraviolet sterilization, the solar panel（24）For circle, it is provided with four at equal intervals in circular edge
A photo resistance（25）, solar panel（24）Pass through rotating device（26）It connects on support column, the photo resistance
（25）Single-chip microcontroller is connected, the battery is also electrically connected rotating device（26）And single-chip microcontroller.
2. a kind of sewage-treatment plant with sludge recycling according to claim 1, it is characterised in that：The cesspool
Bottom is connected to sludge pipe.
3. a kind of sewage-treatment plant with sludge recycling according to claim 1, it is characterised in that：The photosensitive electricity
Resistance（25）Top is provided with beam condensing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786818.9A CN108862890A (en) | 2018-07-18 | 2018-07-18 | A kind of sewage-treatment plant with sludge recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786818.9A CN108862890A (en) | 2018-07-18 | 2018-07-18 | A kind of sewage-treatment plant with sludge recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108862890A true CN108862890A (en) | 2018-11-23 |
Family
ID=64302778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810786818.9A Withdrawn CN108862890A (en) | 2018-07-18 | 2018-07-18 | A kind of sewage-treatment plant with sludge recycling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108862890A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117101A (en) * | 2019-05-24 | 2019-08-13 | 武汉市拓美环保科技有限公司 | A kind of countryside sewage treatment equipment of recyclable sludge |
-
2018
- 2018-07-18 CN CN201810786818.9A patent/CN108862890A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117101A (en) * | 2019-05-24 | 2019-08-13 | 武汉市拓美环保科技有限公司 | A kind of countryside sewage treatment equipment of recyclable sludge |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |
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| WW01 | Invention patent application withdrawn after publication |