CN101633531A - Sewage treatment reactor for alternately operating intermittent flow and continuous flow - Google Patents
Sewage treatment reactor for alternately operating intermittent flow and continuous flow Download PDFInfo
- Publication number
- CN101633531A CN101633531A CN200910104618A CN200910104618A CN101633531A CN 101633531 A CN101633531 A CN 101633531A CN 200910104618 A CN200910104618 A CN 200910104618A CN 200910104618 A CN200910104618 A CN 200910104618A CN 101633531 A CN101633531 A CN 101633531A
- Authority
- CN
- China
- Prior art keywords
- reactor
- reaction tank
- continuous flow
- pipe
- sewage
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a sewage treatment reactor for alternately operating an intermittent flow and a continuous flow. The reactor comprises a tank body, an inlet/outlet water pipe, a connecting pipe, an eration system, and the like. Separation walls are vertically arranged in the biological treatment tank body and divide the biological treatment tank body into at least four grids which are respectively used as a biological reaction tank; each of the other tank is provided with an independent inlet/outlet water system and a connecting pipe which is arranged between two adjacent tanks; each tank is provided with suspension stuffing; and the bottom of each tank is provided with a microporous aeration device and a sludge discharge pipe. The invention has the advantages of flexible operation modes, high treatment efficiency, strong shockproof loading capacity, lower operation energy consumption, small remaining sludge amount, short process, small floor area, little investment, convenient management, and the like.
Description
Technical field
The invention belongs to sewage disposal, environmental protection technical field, be specifically related to a kind of sewage-treating reactor of alternately operating intermittent flow and continuous flow.
Background technology
Conventional municipal sewage treatment facility investment is big, working cost is high, operational management is complicated, is difficult in samll cities and towns and promotes.In recent years, the reactor technology development that is used for samll cities and towns' sewage disposal is rapid, Chinese patent disclosed CN2811278Y " sextuple three-phase biologic treatment process device " successively for example, CN1552644 " a kind of samll cities and towns sewage treatment process " and CN2780751 " rotating wetland filtering pond+lateral subsurface flow wetland bed waste water treatment system " or the like, be the continuous flow biological reaction device, can realize that with this reactor Continuous Flow is different with two kinds of operation scheme of sequence batch (, in order to reach high processing usefulness, their technical process is longer, structure is complicated, energy consumption is big and floor space is big, is unfavorable for the construction and the operational management of samll cities and towns' sewage-treating reactor.This reactor adopts Continuous Flow and two kinds of operation scheme of sequence batch (alternately, and filling floating stuffing, has the treatment efficiency height, floor space is little, can change characteristics such as changing operation scheme flexibly according to water quality and quantity, not see report both at home and abroad as yet relevant for the sewage-treating reactor of alternately operating intermittent flow and continuous flow.
Summary of the invention
Deficiency at the sewage treatment process existence of existing samll cities and towns, the purpose of this invention is to provide the sewage-treating reactor that a kind of intermittent flow/Continuous Flow can replace conversion operation, Continuous Flow staged reactor and sequence batch (intermittent flow reactor are organically combined, adaptive faculty and the treatment efficiency that enhancing reactor changes water quantity and quality, simplify treatment process to reach, reduce investment, reduce processing cost and reduce the purpose of taking up an area of.
The technical scheme that the object of the invention realizes is as follows:
A kind of sewage-treating reactor of alternately operating intermittent flow and continuous flow comprises pond body, water inlet pipe, pipe connecting, rising pipe, shore pipe and aerator, in the body of pond partition wall is set, and the pond body is divided at least four lattice, respectively as a biological reaction tank.Be provided with floating stuffing in each reaction tank.Each lattice of biological reaction tank all have independently inlet tube and outlet tube and aerating system, and adjacent two ponds are provided with pipe connecting, be equipped with magnetic valve on inlet tube and outlet tube and the pipe connecting, open and close by the control magnetic valve, four reaction grid devices of intermittent flow sequence batch (in parallel operation are converted to the staged reactor of Continuous Flow four lattice series operations, can make biological tank realize the conversion of Continuous Flow and two kinds of operation scheme of sequence batch (; Each bottom, pond is equipped with shore pipe, can be regularly from each reaction tank depositing separation area spoil disposal.
Compared with prior art, the present invention has following characteristics:
1. intermittent flow/Continuous Flow replaces that the sewage-treating reactor adaptive faculty of conversion operation is strong, treatment efficiency is high
This reactor can change according to the fluctuation of samll cities and towns' sewage quality water yield owing to can realize Continuous Flow and the alternately conversion of two kinds of operation scheme of intermittent flow, adjusts operation scheme flexibly, makes the treatment efficiency of reactor reach maximum.As when samll cities and towns' sewage quality and the water yield are lower than design load, can adopt sequence batch (intermittent flow parallel running mode, and operation group number also can water quality and water yield situation adjust flexibly; When samll cities and towns' sewage quality and the water yield surpass design scale, can be exchanged into Continuous Flow plural serial stage operation scheme, to adapt to overload operation.Equate that at load under the condition, the comparable intermittent flow sequence batch (of the processing power of Continuous Flow operation scheme parallel running mode processing power increases by 2～5 times as calculated.In the lower samll cities and towns of economic level, adopt this reactor, by the conversion operation mode, can satisfy the requirement of sewage disposal at a specified future date.Can realize that samll cities and towns' Sewage Plant is disposable and build up, and not need enlarging at a specified future date, reduce the investment and the occupation of land of samll cities and towns' sewage disposals greatly.In addition, this reactor adopts the biomembrane process mode, reactor has higher microorganism concn, capacity of resisting impact load is strong, by floating stuffing is set in reactor, and the suitable dissolved oxygen levels of control, can be easy to realize synchronous nitration denitrification denitrogenation efficiently in the aerobic and anoxic microenvironment of the inner formation of microbial film.Simultaneously, reactor can be realized the aerobic-anaerobic alternate run by intermittent aeration in reaction tank, for the microbial film dephosphorization has made up good environment.
2. operation energy consumption is low
Usually the energy consumption cost in the sewage treatment process accounts for the large percentage of its running cost, and cutting down the consumption of energy is the key point that reduces running cost.The energy consumption of general sewage treatment process is mainly used in lifting, aeration and the nitrification liquid of sewage, the backflow of mud.This treatment reactor can realize synchronous nitration and denitrification efficiently by the spherical medium-soft combined stuffing that suspends is set in reactor, saved the mixed-liquor return system.Simultaneously, in reaction tank, realize the aerobic-anaerobic alternate run,, saved the mud return-flow system of general dephosphorization system for the biomembrance process efficient dephosphorization has made up good environment by the control aeration mode.In addition, adopt biomembrance process to make up this treatment system, saved general reactor required whipping device in anaerobic phosphorus release and anoxic denitrification process, therefore, this treatment reactor has efficient feature.
3. surplus sludge volume is few
The medium-soft combined stuffing is set in treating pond forms the stable complex ecosystem of forming by a plurality of trophic levels, reduced sludge yield.
4. technical process is lacked, takes up an area of less, invests low
Technique units such as this treatment reactor collecting water from runoff adjusting, organic matter degradation, biological dephosphorize denitrification, mud decrement, precipitation are one, have characteristics such as technical process is short, operation scheme is flexible, take up an area of less, investment is low.
Description of drawings
Fig. 1: the sewage-treating reactor orthographic plan of alternately operating intermittent flow and continuous flow;
Fig. 2: the sewage-treating reactor sectional view of alternately operating intermittent flow and continuous flow;
Embodiment
Referring to Fig. 1, Fig. 2, this sewage-treating reactor reactor comprises pond body 1, water inlet pipe 2, pipe connecting 3, rising pipe 4, shore pipe 5 and aerator 6.Four sides partition wall 7 vertically is set in the described pond body 1, pond body 1 is divided into four lattice,, establish floating stuffing 9 (specifically adopting the medium-soft combined stuffing) in each pond respectively as four biological reaction tanks 8; The top that described water inlet pipe 2 is located at pond body 1 is communicated with the water-in of each lattice biological reaction tank 8 respectively, realizes successively being communicated with by pipe connecting 3 between each lattice biological reaction tank, and four lattice biological tanks are provided with independently rising pipe 4 respectively.Be equipped with magnetic valve 12 on the inlet tube and outlet tube in each pond and the pipe connecting, can open and close the conversion that realizes Continuous Flow and intermittent flow operation scheme by magnetic valve.Microporous aeration device 6 is arranged in each biological reaction tank bottom, all joins with blast main 11, carries out intermittent aeration.And concave configuration has been done in each biological reaction tank bottom, forms bucket 10, and is connected to shore pipe 5, regularly from each reaction tank spoil disposal.
The treating processes of this reactor is as follows:
When reactor was pressed the operation of intermittent flow sequence batch (, by adjusting the keying of each battery valve, sewage entered the biological treatment tank of four lattice parallel runnings at first successively, and every lattice biological treatment tank is pressed sequence batch ((water inlet-reaction-precipitation-water outlet) mode periodic duty.Sequence batch (intermittent water inflow process has realized the adjusting to the water yield, and pollution substances such as the organism in the sewage, nitrogen phosphorus are removed by biomembranous absorption, biological degradation.The present invention can be easy to realize synchronous nitration denitrification denitrogenation efficiently in the inner aerobic-anoxic microenvironment of enriching that forms of microbial film by floating stuffing is set in reactor.Simultaneously, reactor can adopt aeration/stop the mode of exposing to the sun to move, and carries out the aerobic-anaerobic alternate run in reaction tank, can realize the high-performance bio dephosphorization.
When reactor moves by Continuous Flow, by adjusting the keying of each battery valve, sewage enters the biological treatment tank of four lattice series operations continuously, on the one hand by spherical suspending medium-soft combined stuffing is set in reactor, form abundant aerobic-anoxic microenvironment in microbial film inside, be easy to realize synchronous nitration denitrification denitrogenation efficiently.Simultaneously, reactor can adopt aeration/stop the mode of exposing to the sun to move, and can realize the aerobic-anaerobic alternate run in reaction tank, for the microbial film dephosphorization has made up good environment.On the other hand, biological treatment tank moves in the staged reactor mode, has different superior microorganisms not at the same level section of reactor, helps the removal to pollution substances such as the organism in the sewage, nitrogen phosphorus.In addition, each pond is equipped with sludge drainage system, regularly from each reaction tank spoil disposal.
Main technical details:
The COD volumetric loading: reaction tank COD volumetric loading is 1.0kgCOD/m
3.d
Structural parameter:
The sewage-treating reactor specification of alternately operating intermittent flow and continuous flow (L * B * H) (L, B, H represent length respectively)
Reaction zone available depth H
1=H-0.5 (m)
Reaction tank useful volume V=Q/m * n * M (m
3) (Q is writing a Chinese character in simplified form of Quantity, i.e. flow, unit: m
3/ d, m are the draining ratio, and n is single lattice biological reaction tank number reaction time every day, and M is biological reaction tank lattice numbers)
Claims (4)
1. the sewage-treating reactor of an alternately operating intermittent flow and continuous flow comprises pond body (1), water inlet pipe (2), pipe connecting (3), rising pipe (4), shore pipe (5) and aerator (6); It is characterized in that: partition wall (7) vertically is set in the described pond body (1), pond body (1) is divided at least four lattice, respectively as a biological reaction tank (8), floating stuffing (9) is established in parallel running in each pond; Described water inlet pipe (2) taps into each biological reaction tank (8) respectively, is communicated with successively by pipe connecting (3) between the adjacent two lattice biological reaction tanks, and every lattice biological reaction tank (8) is equipped with rising pipe (4); Be equipped with magnetic valve (12) on described inlet tube and outlet tube and the pipe connecting, keying by controlling each magnetic valve is converted to the staged reactor of each lattice series operation of Continuous Flow with each reaction grid device of intermittent flow sequence batch (operation in parallel, realizes the conversion of Continuous Flow and intermittent flow operation scheme; Microporous aeration device (6) is arranged in each biological reaction tank bottom, and microporous aeration device (6) joins with blast main (11), is connected to shore pipe (5) in each biological reaction tank bottom, regularly from each reaction tank spoil disposal.
2. the sewage-treating reactor of alternately operating intermittent flow and continuous flow according to claim 1 is characterized in that: done concave configuration in each biological reaction tank bottom, formed bucket (10), and connected shore pipe (5).
3. the sewage-treating reactor of alternately operating intermittent flow and continuous flow according to claim 1 and 2 is characterized in that: described floating stuffing (9) employing medium-soft combined stuffing.
4. the sewage-treating reactor of alternately operating intermittent flow and continuous flow according to claim 1 and 2 is characterized in that: described pond body (1) is divided into four lattice, is matrix pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101046181A CN101633531B (en) | 2009-08-13 | 2009-08-13 | Sewage treatment reactor for alternately operating intermittent flow and continuous flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101046181A CN101633531B (en) | 2009-08-13 | 2009-08-13 | Sewage treatment reactor for alternately operating intermittent flow and continuous flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101633531A true CN101633531A (en) | 2010-01-27 |
| CN101633531B CN101633531B (en) | 2012-03-28 |
Family
ID=41592899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101046181A Expired - Fee Related CN101633531B (en) | 2009-08-13 | 2009-08-13 | Sewage treatment reactor for alternately operating intermittent flow and continuous flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101633531B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001741A (en) * | 2010-09-21 | 2011-04-06 | 重庆文理学院 | Biochemical water treatment experimental device and process |
| CN102145938B (en) * | 2010-02-05 | 2013-01-16 | 江苏新龙鼎环保成套工程有限公司 | Anaerobic clapboard reactor for changing load of sludge bed according to water flow direction |
| CN102897914A (en) * | 2012-09-28 | 2013-01-30 | 长业环保集团有限公司 | Variable volume hydrolytic acidification and anoxic/oxic (A/O) integrated sewage treatment device |
| CN102923920A (en) * | 2012-11-28 | 2013-02-13 | 四川省环保科技工程有限责任公司 | Traditional Chinese medicine wastewater treatment process |
| CN103172220A (en) * | 2013-03-18 | 2013-06-26 | 密西西比国际水务有限公司 | Combined sewage deep-treatment device and treatment method |
| CN103864229A (en) * | 2014-04-01 | 2014-06-18 | 北京桑德环境工程有限公司 | Township wastewater treatment system and method |
| CN105645589A (en) * | 2014-11-14 | 2016-06-08 | 重庆大学 | Deep-bed constructed wetland reactor with switchable operating modes |
| CN105692900A (en) * | 2016-02-23 | 2016-06-22 | 浙江清华长三角研究院 | Short-cut nitrification and denitrification intermittent aeration sequencing batch bioreaction device and high-ammonia-nitrogen sewage treatment method |
| CN106115919A (en) * | 2016-08-29 | 2016-11-16 | 武汉东川自来水科技开发有限公司 | A kind of batch-type intermittent aerating three phase fluidized bed and sewage water treatment method thereof |
| CN106517520A (en) * | 2016-12-06 | 2017-03-22 | 深圳合续环境科技有限公司 | MBBR continuous flow sequencing batch sewage treatment device and method thereof |
| CN106904740A (en) * | 2017-03-29 | 2017-06-30 | 天津西敦津洋环保科技有限公司 | A kind of sewage disposal device of series connection and application |
| CN107915312A (en) * | 2017-11-21 | 2018-04-17 | 中国市政工程中南设计研究总院有限公司 | A kind of continuous stream intermittent aerating biomembrane denitrogenation dephosphorization apparatus and method |
| CN109354168A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of quick start method of MBBR whole process autotrophic denitrification system |
| CN114409076A (en) * | 2021-11-24 | 2022-04-29 | 南京信息工程大学 | Enhanced denitrification treatment method for rural dispersed sewage |
| CN115259337A (en) * | 2021-04-30 | 2022-11-01 | 辽河石油勘探局有限公司 | High-polymer-content heavy oil sewage deep aeration treatment system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100203050B1 (en) * | 1997-02-05 | 1999-06-15 | 조연제; 홍보성 | A system for treating wastewater and a method for treating wastewater using the same |
| RU2139257C1 (en) * | 1997-10-03 | 1999-10-10 | Колесников Владимир Петрович | Plant for biochemical purification of very concentrated sewage |
| CN100436343C (en) * | 2005-12-28 | 2008-11-26 | 中国科学院生态环境研究中心 | Circulation type double fluid state sewage treatment reactor |
-
2009
- 2009-08-13 CN CN2009101046181A patent/CN101633531B/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145938B (en) * | 2010-02-05 | 2013-01-16 | 江苏新龙鼎环保成套工程有限公司 | Anaerobic clapboard reactor for changing load of sludge bed according to water flow direction |
| CN102001741A (en) * | 2010-09-21 | 2011-04-06 | 重庆文理学院 | Biochemical water treatment experimental device and process |
| CN102897914A (en) * | 2012-09-28 | 2013-01-30 | 长业环保集团有限公司 | Variable volume hydrolytic acidification and anoxic/oxic (A/O) integrated sewage treatment device |
| CN102923920A (en) * | 2012-11-28 | 2013-02-13 | 四川省环保科技工程有限责任公司 | Traditional Chinese medicine wastewater treatment process |
| CN103172220A (en) * | 2013-03-18 | 2013-06-26 | 密西西比国际水务有限公司 | Combined sewage deep-treatment device and treatment method |
| CN103864229A (en) * | 2014-04-01 | 2014-06-18 | 北京桑德环境工程有限公司 | Township wastewater treatment system and method |
| CN103864229B (en) * | 2014-04-01 | 2015-09-16 | 北京桑德环境工程有限公司 | Villages and small towns Sewage treatment systems and method |
| CN105645589B (en) * | 2014-11-14 | 2020-08-04 | 重庆大学 | Deep-bed constructed wetland reactor capable of converting operation modes |
| CN105645589A (en) * | 2014-11-14 | 2016-06-08 | 重庆大学 | Deep-bed constructed wetland reactor with switchable operating modes |
| CN105692900A (en) * | 2016-02-23 | 2016-06-22 | 浙江清华长三角研究院 | Short-cut nitrification and denitrification intermittent aeration sequencing batch bioreaction device and high-ammonia-nitrogen sewage treatment method |
| CN105692900B (en) * | 2016-02-23 | 2018-10-26 | 浙江清华长三角研究院 | A kind of short-cut nitrification-denitrification intermittent aerating batch-type biological reaction apparatus and the method for handling high-ammonia-nitrogen sewage |
| CN106115919A (en) * | 2016-08-29 | 2016-11-16 | 武汉东川自来水科技开发有限公司 | A kind of batch-type intermittent aerating three phase fluidized bed and sewage water treatment method thereof |
| CN106517520A (en) * | 2016-12-06 | 2017-03-22 | 深圳合续环境科技有限公司 | MBBR continuous flow sequencing batch sewage treatment device and method thereof |
| CN106904740A (en) * | 2017-03-29 | 2017-06-30 | 天津西敦津洋环保科技有限公司 | A kind of sewage disposal device of series connection and application |
| CN107915312A (en) * | 2017-11-21 | 2018-04-17 | 中国市政工程中南设计研究总院有限公司 | A kind of continuous stream intermittent aerating biomembrane denitrogenation dephosphorization apparatus and method |
| CN109354168A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of quick start method of MBBR whole process autotrophic denitrification system |
| CN109354168B (en) * | 2018-12-05 | 2021-08-17 | 青岛思普润水处理股份有限公司 | Rapid starting method of MBBR (moving bed biofilm reactor) completely autotrophic nitrogen removal system |
| CN115259337A (en) * | 2021-04-30 | 2022-11-01 | 辽河石油勘探局有限公司 | High-polymer-content heavy oil sewage deep aeration treatment system |
| CN114409076A (en) * | 2021-11-24 | 2022-04-29 | 南京信息工程大学 | Enhanced denitrification treatment method for rural dispersed sewage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101633531B (en) | 2012-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101633531B (en) | Sewage treatment reactor for alternately operating intermittent flow and continuous flow | |
| CN100545103C (en) | Active sludge-biomembrane compounding integral sewage treating method and device thereof | |
| CN102276103B (en) | Integrated in-situ denitrification culture wastewater biological treatment device and treatment method | |
| CN102001797B (en) | Stepwise function-intensified biological and ecological oxidation pond and method for deeply purifying water quality | |
| CN201952325U (en) | Stepwise function-reinforced biological ecological oxidation pond | |
| CN101486511B (en) | Air lift intermittent internal circulation denitrification dephosphorization sewage treatment process and apparatus | |
| CN101786770B (en) | Oligodynamic moving bed sanitary sewage disposal system | |
| CN201864644U (en) | Integrated denitrification and dephosphorization sewage treatment pond | |
| CN103964633B (en) | Integrated bioreactor and reaction process thereof | |
| CN101973679A (en) | Distributed sewage treatment and regeneration technology | |
| CN101633545B (en) | Integrated biological and ecological cooperative sewage treatment method and reactor | |
| CN102951731B (en) | Airlift oxidation ditch type membrane bioreactor | |
| CN201999792U (en) | Internal circulation moving bed bioreactor | |
| CN105923771A (en) | Self-circulation biological denitrification reactor | |
| CN206512058U (en) | A kind of efficient villages and small towns waste water treating and reutilizing device | |
| CN103183454B (en) | Coupling type biological denitrification method and system thereof | |
| CN105439286A (en) | Vertical current sewage ecological treatment system | |
| CN201458913U (en) | Integrated biological ecological coordinated sewage treatment reactor | |
| CN103693818B (en) | Coking wastewater biochemical treatment and sedimentation tank | |
| CN203392987U (en) | Z-type integrated sewage treatment pond employing gas stripping reflux and two-stage precipitation | |
| CN203159405U (en) | Coupled biological denitrification system | |
| CN202658008U (en) | Sewage denitrifying phosphorus and nitrogen removal device of combined bio-filter of membrane bioreactor | |
| CN205313183U (en) | Ecological processing system of vertical current sewage | |
| CN202046977U (en) | Anaerobic-aerobic integrated reactor | |
| CN101538085A (en) | Structure of spiral-flow aeration sedimentation sewage treatment tank and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100127 Assignee: CHONGQING SANXIA ENVIRONMENTAL (GROUP) CO.,LTD. Assignor: Chongqing University Contract record no.: 2013500000010 Denomination of invention: Sewage treatment reactor for alternately operating intermittent flow and continuous flow Granted publication date: 20120328 License type: Exclusive License Record date: 20130407 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20210813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |