CN109694166A - A kind of bis- membrane process integrated equipment for sewage treatment of MBR - Google Patents
A kind of bis- membrane process integrated equipment for sewage treatment of MBR Download PDFInfo
- Publication number
- CN109694166A CN109694166A CN201910158527.XA CN201910158527A CN109694166A CN 109694166 A CN109694166 A CN 109694166A CN 201910158527 A CN201910158527 A CN 201910158527A CN 109694166 A CN109694166 A CN 109694166A
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- Prior art keywords
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- mbr
- aerobic
- sewage treatment
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- 239000012528 membrane Substances 0.000 title claims abstract description 37
- 239000010865 sewage Substances 0.000 title claims abstract description 37
- 238000011282 treatment Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000001728 nano-filtration Methods 0.000 claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 18
- 238000005273 aeration Methods 0.000 claims description 5
- 230000002155 anti-virotic effect Effects 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- -1 ion salt Chemical class 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009615 deamination Effects 0.000 abstract description 2
- 238000006481 deamination reaction Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000013139 quantization Methods 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid 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
- 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
- C02F1/30—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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of bis- membrane process integrated equipment for sewage treatment of MBR, including aerobic area, anaerobic zone, aerobic zone, MBR film area, filtered water tank, nanofiltration membrane area and equipment room, battery limits include air blower, the first medicament storage room, second medicament storage room and power control cabinet；The present invention first passes through MBR film and is effectively separated by solid-liquid separation, it is got well than traditional sedimentation basin separating effect, delivery turbidity and suspended matter are close to zero, and it is better than the effect of traditional biological deamination, it further include having nanofiltration membrane area, can dissolubility ion salt effectively in filter sewage, part be organic and coloration, further increase water quality；System is easily integrated one in invention simultaneously, can seek unity of standard, quantization production；High degree of automation does not need artificial backwash, and manual operation is less, reduces operation cost；The construction period is short simultaneously, and construction cost is small, standard modular equipment, install convenient.
Description
Technical field
The present invention relates to sewage treatments and technical field of regeneration, and in particular to a kind of sewage treatment one using MBR technology
Body equipment.
Background technique
Currently, municipal sewage plant, China obtains significant progress, large quantities of processing requirements in terms of measuring with matter
High sewage treatment plant be constructed and put into operation for mitigate environmental pressure, cut down pollutant emission, improve water environment provide it is strong
It ensures.But China's construction of municipal effluent plant also has certain gap compared with developed countries, and sewage load still lags behind
Quantity of wastewater effluent.Also, for a long period, energy consumption is high, operating cost is high, sewage treatment fee collecting is not in place, results in portion
Divide sewage plant operation difficult, heavy financial burden is brought to relevant municipal sector, production division.Therefore around section
Can, lower consumption, subtract the targets such as dirt, synergy to carry out research to the process system and the method for operation of sewage treatment plant is to have attracted much attention at present
Project.Within quite long one period from now on, energy consumption problem will become the bottleneck of municipal sewage treatment, carry out the field
It studies very necessary.
Under these circumstances, membrane bioreactor (MembraneBioreactor, MBR) technique is come into being.Film biology
Reactor is grown up on the basis of combining traditional biological treatment process and membrane separation technique.Traditional waste water control side
Method is based on the environmental protection concept of " administering, discharge ", is that can just be discharged into Natural Water after the standard requirements that polluted water body reaches certain
Domain.Enhancing due to environmental consciousness and the concern to human health, more for the prevention and treatment to pathogenic microbes, various countries' sewage
It gives, arrange all increasingly strictly.Traditional administering method is unable to reach the requirement of direct or indirect drinking water, in order to reach the mesh of reuse
Just have to pass through the tertiary treatment such as disinfection, filtering.Membrane biological reactor process can not only degrade various pollutants, also direct
The potential threat that various pathogen property microorganisms enter water body to human health is eliminated, so that it is guaranteed that water outlet reaches using mark
Standard more fully embodies the theory of the fresh-water-saving resource of " administering, reuse ".
But in current MBR film sewage disposal technology, MBR film mainly plays the role of mud-water separation, and cannot incite somebody to action
Dissolubility ion salt, partial organic substances and coloration in sewage exclude, therefore the sewage Jing Guo MBR film process still has centainly
Pollution, it is therefore desirable to a kind of better sewage disposal device.
Summary of the invention
For the deficiency in the presence of the prior art, the present invention provides a kind of MBR (double films) sewage treatment integrations to set
It is standby, to solve existing MBR film sewage disposal technology because cannot be by dissolubility ion salt, partial organic substances and the color in sewage
Degree excludes, and leads to the halfway problem of sewage treatment.
To achieve the above object, an object of the present invention uses the following technical solution:
A kind of bis- membrane process integrated equipment for sewage treatment of MBR, including it is aerobic area, anaerobic zone, aerobic zone, MBR film area, clear
Water tank, nanofiltration membrane area and equipment room, wherein aerobic area, anaerobic zone, aerobic zone are three open type sinks being disposed adjacent, MBR
Film area is the enclosed housing after being connected to aerobic zone, and aerobic area, anaerobic zone, aerobic zone, MBR film pass through water inlet pipe between area
Road is sequentially connected, and MBR film area is connected to filtered water tank by the pipeline with suction pump, and filtered water tank is then by having booster pump
Pipeline be connected to nanofiltration membrane area, the nanofiltration membrane area is the concatenated column structure of several groups；
The battery limits include air blower, the first medicament storage room, second medicament storage room and power control cabinet, wherein air blower
The bottom of aerobic zone and MBR film area is respectively connected to by exhaust pipe, first medicament storage room is connected by the first dosing pump
Be connected to aerobic zone, the second medicament storage room is connected to filtered water tank by the second dosing pump, the power control cabinet respectively with suction
Pump, booster pump, air blower, the first dosing pump and the control connection of the second dosing Pump data.
Compared with the prior art, the invention has the following beneficial effects:
1, the present invention first passes through MBR film and is effectively separated by solid-liquid separation, and gets well than traditional sedimentation basin separating effect, water outlet
Turbidity and suspended matter are completely trapped at microorganism in reactor close to zero, improve anti impulsion load, and it is thin to be conducive to nitrification
Bacterium growth and breeding, better than the effect of traditional biological deamination；
2, the invention also includes there is nanofiltration membrane area, can dissolubility ion salt effectively in filter sewage, part it is organic and
Coloration further increases water quality；
3, system is easily integrated one in the present invention, can seek unity of standard, quantization production；High degree of automation does not need artificial
Backwash, manual operation is less, reduces operation cost；The construction period is short simultaneously, and construction cost is small, standard modular equipment, installation
It is convenient.
Detailed description of the invention
Fig. 1 is a kind of side view schematic diagram of the bis- membrane process integrated equipment for sewage treatment of MBR of the present invention；
In figure: aerobic area 1, anaerobic zone 2, aerobic zone 3, MBR film area 4, filtered water tank 5, nanofiltration membrane area 6, ultraviolet light antivirus instrument
7, suction pump 8, booster pump 9, air blower 10, the first dosing pump 11, the second dosing pump 12, the first medicament storage room 13, the second medicine
Agent storage room 14, boring aeration pipe 15, reflux pump 16.
Specific embodiment
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
Embodiment:
As shown in Figure 1, the invention proposes a kind of bis- membrane process integrated equipment for sewage treatment of MBR, including aerobic area 1,
Anaerobic zone 2, aerobic zone 3, MBR film area 4, filtered water tank 5, nanofiltration membrane area 6 and equipment room.In the present embodiment, 6 rear of nanofiltration membrane area is also
It is connected with ultraviolet light antivirus instrument 7, the ultraviolet light antivirus instrument 7 outlet connection drainpipe.
Wherein aerobic area 1, anaerobic zone 2, aerobic zone 3 are three open type sinks being disposed adjacent, and MBR film area 4 is connection
Enclosed housing after aerobic zone 3, aerobic area 1, anaerobic zone 2, aerobic zone 3, between MBR film area 4 by water inlet line according to
Secondary connection, while controllability valve is equipped in water inlet line, thus the stop of water yield adjusting and control sewage in different zones
Time.MBR film area 4 is connected to filtered water tank 5 by the pipeline with suction pump 8, it should be noted that suction pump 8 can pass through electricity
The control of dynamic valve is changed to backwashing pump, so that the water in filtered water tank 5, which is discharged into MBR film area 4, carries out cleaning operation；Filtered water tank 5 is then
It is connected to nanofiltration membrane area 6 by the pipeline with booster pump 9, the nanofiltration membrane area 6 is the concatenated column structure of several groups, thus
Repetitive filtering maximumlly plays excluding that dissolubility ion salt, part be organic and the function of coloration.Using even in the present embodiment
You connect at three groups of column structures, are then provided with nanofiltration membrane in column structure.In the preferred scheme of the present embodiment, aerobic zone 3 and detest
Oxygen area 2 is internally provided with stuffing frame, convenient for suspension biologic packing material, part is vacated among stuffing frame, personnel is facilitated down maintenance, side
Edge is additionally provided with ladder, can equally be convenient for overhauling.
In preferred scheme, MBR film area 4 is connected to aerobic area 1 by mud return line, is arranged on the mud return line
There is reflux pump 16.Sludge reflux to come out MBR UF membrane makes to keep certain suspension in aerobic area 1 into aerobic area 1
Solid concentration, that is, certain microorganism concn is kept, to carry out subsequent biological respinse.Further, 1 bottom of aerobic area
Portion is equipped with Pneumatic mixing device, prevents sludgd deposition, maintains simultaneous oxygen condition.
Battery limits include air blower 10, the first medicament storage room 13, second medicament storage room 14 and power control cabinet, wherein air blast
Machine 10 is respectively connected to the bottom of aerobic zone 3 and MBR film area 4 by exhaust pipe, to cooperate carry out Air Exposure, the present embodiment
In preferred scheme, 4 bottom of MBR film area is equipped with boring aeration pipe 15 and connect with exhaust pipe, to improve aeration efficiency, and increases
The shake of blooming silk reduces the stifled situation of film dirt.First medicament storage room 13 is connected to aerobic zone by the first dosing pump 11
3, the second medicament storage room 14 is connected to filtered water tank 5 by the second dosing pump 12；In the present embodiment, the first medicament storage room
Dephosphorization reagent is stored in 13, second medicament storage room 14 stores the chemical cleaning medicaments such as mordant.Power control cabinet respectively with pumping
Sucking pump 8, booster pump 9, air blower 10, the first dosing pump 11 and the control connection of 12 data of the second dosing pump, to carry out master control.
At work, water enters the present invention from aerobic area 1, and anaerobic zone 2 is entered after brief stay, and anaerobic zone 2 hangs bullet
Property filler, sewage carry out releasing phosphorus reaction herein, subsequently enter aerobic zone 3, aerobic suspension elastic filler is under the action of aeration
Aerobic state is maintained, microorganism growth has sufficient nutrition, dephosphorization is carried out to phosphorus under the Dephosphorization reagent effect added, generation
Dephosphorization flocculate enters MBR film area 4 with sewage together, carries out mud-water separation, enters filtered water tank 5, MBR after the water outlet of MBR film
Film area 4 is connect with the suction pump 8 of filtered water tank 5, and the water of filtered water tank 5 enters nanofiltration membrane by booster pump 9, is entered after nanofiltration membrane water outlet
Ultraviolet ray sterilizer carries out disinfection processing, finally discharges.By the present invention treated sewage, quasi- IV class water gauge can achieve
Standard goes out aqueous suspension under double membrane process and turbidity is almost nil, and coloration also can be removed preferably.
The present invention also has automatic cleaning function, when being cleaned, first shut down, and then the water of filtered water tank 5 is logical
It crosses backwashing pump and enters MBR film, backwashed, while dosing cleaning pump works and throws chemical agent into filtered water tank 5, be pressurized
Hydraulic pressure in filtered water tank 5 is carried out chemical cleaning to nanofiltration membrane into nanofiltration membrane in a low voltage state by pump 9.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (7)
1. a kind of bis- membrane process integrated equipment for sewage treatment of MBR, it is characterised in that: including aerobic area, anaerobic zone, aerobic zone,
MBR film area, filtered water tank, nanofiltration membrane area and equipment room, wherein aerobic area, anaerobic zone, aerobic zone be three be disposed adjacent open wide
Formula sink, MBR film area are the enclosed housing after being connected to aerobic zone, aerobic area, anaerobic zone, aerobic zone, between MBR film area
It is sequentially connected by water inlet line, MBR film area is connected to filtered water tank by the pipeline with suction pump, and filtered water tank then passes through
Pipeline with booster pump is connected to nanofiltration membrane area, and the nanofiltration membrane area is the concatenated column structure of several groups；
The battery limits include air blower, the first medicament storage room, second medicament storage room and power control cabinet, and wherein air blower passes through
Exhaust pipe is respectively connected to the bottom of aerobic zone and MBR film area, and first medicament storage room is connected to by the first dosing pump
Aerobic zone, the second medicament storage room are connected to filtered water tank by the second dosing pump, the power control cabinet respectively with suction pump, increase
Press pump, air blower, the first dosing pump and the control connection of the second dosing Pump data.
2. a kind of bis- membrane process integrated equipment for sewage treatment of MBR as described in claim 1, it is characterised in that: the nanofiltration
Film area rear is also connected with ultraviolet light antivirus instrument, the ultraviolet light antivirus instrument outlet connection drainpipe.
3. a kind of bis- membrane process integrated equipment for sewage treatment of MBR as described in claim 1, it is characterised in that: the MBR film
Area is connected to aerobic area by mud return line, is provided with reflux pump on the mud return line.
4. a kind of bis- membrane process integrated equipment for sewage treatment of MBR as described in claim 1, it is characterised in that: described and oxygen
Area bottom is equipped with Pneumatic mixing device.
5. a kind of bis- membrane process integrated equipment for sewage treatment of MBR as described in claim 1, it is characterised in that: described aerobic
Area and anaerobic zone are internally provided with stuffing frame, and convenient for suspension biologic packing material, edge is additionally provided with ladder.
6. a kind of bis- membrane process integrated equipment for sewage treatment of MBR as described in claim 1, it is characterised in that: the MBR film
Area bottom is equipped with boring aeration pipe and connect with exhaust pipe.
7. a kind of bis- membrane process integrated equipment for sewage treatment of MBR as described in claim 1, it is characterised in that: the suction
Pump can be changed to backwashing pump by motor-driven valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910158527.XA CN109694166A (en) | 2019-03-04 | 2019-03-04 | A kind of bis- membrane process integrated equipment for sewage treatment of MBR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910158527.XA CN109694166A (en) | 2019-03-04 | 2019-03-04 | A kind of bis- membrane process integrated equipment for sewage treatment of MBR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109694166A true CN109694166A (en) | 2019-04-30 |
Family
ID=66233804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910158527.XA Pending CN109694166A (en) | 2019-03-04 | 2019-03-04 | A kind of bis- membrane process integrated equipment for sewage treatment of MBR |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109694166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585785A (en) * | 2019-10-28 | 2019-12-20 | 重庆尚泽源环保科技有限公司 | Sewage sedimentation tank inlet channel structure |
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| CN102826726A (en) * | 2012-09-25 | 2012-12-19 | 重庆三峰环境产业集团有限公司 | Refuse incineration plant leachate treatment process |
| CN108128968A (en) * | 2017-12-01 | 2018-06-08 | 江苏蓝必盛化工环保股份有限公司 | The pesticide wastewater resource processing system and method for a kind of sodium chloride-containing |
| CN108821520A (en) * | 2018-08-23 | 2018-11-16 | 杭州利群环保纸业有限公司 | A kind of reforged tobacco wastewater Treated sewage reusing device and technique |
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2019
- 2019-03-04 CN CN201910158527.XA patent/CN109694166A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219845A (en) * | 2008-01-28 | 2008-07-16 | 北京洁绿科技发展有限公司 | Technique for processing garbage leachate |
| CN101591127A (en) * | 2009-05-19 | 2009-12-02 | 北京洁绿科技发展有限公司 | A kind of treatment process of percolate and device |
| CN102826726A (en) * | 2012-09-25 | 2012-12-19 | 重庆三峰环境产业集团有限公司 | Refuse incineration plant leachate treatment process |
| CN108128968A (en) * | 2017-12-01 | 2018-06-08 | 江苏蓝必盛化工环保股份有限公司 | The pesticide wastewater resource processing system and method for a kind of sodium chloride-containing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585785A (en) * | 2019-10-28 | 2019-12-20 | 重庆尚泽源环保科技有限公司 | Sewage sedimentation tank inlet channel structure |
| CN110585785B (en) * | 2019-10-28 | 2023-06-02 | 重庆尚泽源环保科技有限公司 | Sewage sedimentation tank water inlet pipeline structure |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190430 |
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| RJ01 | Rejection of invention patent application after publication |