CN102174763B - Treatment method for paper making waste water - Google Patents
Treatment method for paper making waste water Download PDFInfo
- Publication number
- CN102174763B CN102174763B CN 201010616781 CN201010616781A CN102174763B CN 102174763 B CN102174763 B CN 102174763B CN 201010616781 CN201010616781 CN 201010616781 CN 201010616781 A CN201010616781 A CN 201010616781A CN 102174763 B CN102174763 B CN 102174763B
- Authority
- CN
- China
- Prior art keywords
- waste water
- water
- filter
- standard
- waste
- 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.)
- Active
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000000835 fiber Substances 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 238000000746 purification Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 15
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000010893 paper waste Substances 0.000 claims description 10
- 238000003672 processing method Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000008235 industrial water Substances 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 230000001351 cycling effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 241000202567 Fatsia japonica Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Physical Water Treatments (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a treatment method for paper making waste water. In the method, one part of white water from a paper making machine is directly recycled, and the other part of white water is physically filtered by a disc type filter and then subjected to advanced treatment by a biological aerated filter, a fiber bundle filter, an active carbon filter and an ultraviolet disinfector to be recycled again or discharged when reaching the standards. The treatment equipment concerned in the invention is waste water treatment equipment used in the prior art. The method comprises a waste water purification step and a backwash water flushing step. The treated waste water meets the requirements for production water and can be recycled.
Description
Technical field
The present invention relates to the processing method of a kind of method of wastewater treatment, particularly a kind of paper waste.
Background technology
Known paper waste processing method has coagulate gas floating process, oxidation pond technique, the combination of biological aerated filter process etc. or these methods, such as Chinese patent application number 200810038176.0 (publication numbers: CN101591085, open day: on December 02nd, 2009) disclose the technology that a kind of waste water of paper mill is processed reuse, adopt the super efficiency shallow air flotation method and carry out fibre bundle or the technology of biological membrane processing, this technology is applicable to package paper, cultural paper, the wastewater treatment of extraordinary paper plant, but during for the treatment of the waste water of the high-grade slim paper plants such as toilet paper, produce easily when it reclaims slurry recycling and disperse inhomogeneous and affect the phenomenon such as paper strength.
There is following shortcoming in prior art:
(1) the fiber loss rate is high;
(2) wastewater recycle rate is lower;
When (3) reclaiming the slurry recycling, produce and disperse non-uniform phenomenon, greatly affect paper strength.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of processing method of paper waste is provided.
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, the processing method of design paper waste, method is compared and is had wastewater recycle rate and reach 90%～95% compared to existing technology, and a ton paper rinse dosage reaches 6～8 tons, and the fiber loss rate is reduced to 0.08% with inferior advantage.
The present invention realizes above-mentioned purpose with technology by the following method:
The present invention relates to a kind of processing method of paper waste, the method refers to that the part of paper machine plain boiled water is carried out direct circulation to be used, and a part is carried out physical filtering, biological aerated filter, fiber bundle filter, charcoal filter, ultraviolet ray disinfector combination through the disc type filter and carried out again recycling or qualified discharge after the advanced treating.Treatment facility involved in the present invention is applied sewage treatment equipment in the prior art.Described method is divided into purification of waste water step and two steps of recoil washing.Described step is as follows:
The purification of waste water step:
At first, the plain boiled water waste water that produces in the paper-making process by one or more disc type filters, is separated fibre bundle with waste water.First fibre bundle was separated with waste water before plain boiled water waste water is carried out a biological disposal upon, the fibre bundle quality of separating is higher, approaches the requirement that is used for paper, can recycling.
Then, will deliver in the regulating reservoir through the waste water of disc type filter process and precipitate, waste water hydraulic retention 3～5 hours in regulating reservoir.
Again, will deliver in the Integral biological filtering pool group through biological treatment through the waste water that regulating reservoir is processed, waste water hydraulic retention 3～5 hours in the Integral biological filtering pool group, waste water forms waste water up to standard by biological treatment in the Integral biological filtering pool group.When finishing to this step, waste water has been to reach wastewater discharge standard, and manufacturing enterprise can select waste discharge or further process waste water according to the amount of needed cycling use of water.At last, waste water then needs further processing as cycling use of water, so that the content of the bacterium in the waste water and impurity reaches the requirement of industrial water.To deliver to clear water reserviors through the waste water up to standard that the Integral biological filtering pool group is processed, waste water up to standard hydraulic retention 2～3 hours in clear water reserviors.The waste water up to standard of finishing dealing with in the clear water reserviors is delivered to reuse pool by clear water reserviors.Above-mentioned waste water up to standard adds first 5～15ppm polyaluminium chloride (polyaluminium chloride is diluted to 0.5%～1.0% solution before adding) in clear water reserviors are delivered to the process of reuse pool, then filter by fiber bundle filter and active carbon filter successively, the suspended impurity in the waste water is removed.Then add 30～40ppm clorox (in Cl) and process by ultraviolet ray disinfector, kill microorganism, bacterium in the waste water.At last waste water up to standard is called in reuse pool, waste water up to standard hydraulic retention 2～3 hours in reuse pool.Waste water up to standard is through reaching the requirement of paper water after the above-mentioned step.
Above-mentioned ultraviolet ray disinfector require the environment for use condition: sterilizer should be able to work under the following conditions.Water turbidity degree≤5 degree of water inlet, total iron-holder≤0.3mg/L, colourity≤15 degree, water temperature 〉=5 ℃, total coli group≤1000/L, total number of bacteria≤2000/mL; Maximum relative humidity≤90% (being equivalent to 20 ℃ ± 5 ℃ of air) in air ambient temperature 〉=5 ℃, the air
The content of the main chemicals in the waste water before this method is processed: COD＜200mg/l, SS＜60mg/L, T≤35 ℃, PH:7～9.The discharging water outlet can reach after processing: COD≤60mg/l, SS≤30mg/L.Waste water after treatment.Water outlet discharging water quality reaches " integrated wastewater discharge standard " (GB8978-1996) primary standard requirement, and the water quality of recycle-water can satisfy the water quality requirement of industrial water.
After moving a period of time, in order to keep the production capacity of equipment, need to clean to equipment equipment the following recoil of operation water-washing step during cleaning.
The recoil water-washing step is as follows:
Utilize backwash pump that the retaining in the clear water reserviors is transferred in Integral biological filtering pool group and/or fiber bundle filter and/or the active carbon filter, the mud that accumulates in Integral biological filtering pool group and/or fiber bundle filter and/or the active carbon filter is washed to storage basin.The retaining that utilizes the recoil water pump to call in the clear water reserviors is washed Integral biological filtering pool group and/or fiber bundle filter and/or active carbon filter.
The backwash sewage that recoil washing produces clarifying contaminated liquids 1～3 day in storage basin;
Then the supernatant in the storage basin is back to regulating reservoir, pending purification of waste water.
Last regularly with discharging storage basin after the sludge press filtration processed in the storage basin, mud is sent to harmless treatment.
The filter backwash cycle described in the above-mentioned step is 20～30 days.
An Integral biological filtering pool in 1～3 day backwash Integral biological filtering pool of Integral biological filtering pool group group described in the above-mentioned step of stating.
Can directly discharge through the waste water up to standard after Integral biological filtering pool group and the clear water reserviors processing in the above-mentioned step.Described step through fiber bundle filter, active carbon filter filters and add clorox and process by ultraviolet ray disinfector after waste water reach industrial water and require to carry out again recycle.
Description of drawings
Fig. 1 is process chart of the present invention;
Fig. 2 is purification of waste water flow chart of steps of the present invention;
Fig. 3 is recoil washing flow chart of steps of the present invention;
The specific embodiment
Embodiment one: as shown in Figure 1, 2, when the present invention carries out purification of waste water, at first with the plain boiled water waste water that produces in the paper-making process by one or more disc type filters, fibre bundle is separated with waste water.First fibre bundle was separated with waste water before plain boiled water waste water is carried out a biological disposal upon, the fibre bundle quality of separating is high, can reach the requirement for paper, can recycling.
Then, will deliver in the regulating reservoir through the waste water of disc type filter process and precipitate, waste water hydraulic retention 4 hours in regulating reservoir.
Again, will deliver in the Integral biological filtering pool group through biological treatment through the waste water that regulating reservoir is processed, waste water hydraulic retention 4 hours in the Integral biological filtering pool group, waste water forms waste water up to standard by biological treatment in the Integral biological filtering pool group.When finishing to this step, waste water has been to reach wastewater discharge standard, and manufacturing enterprise can select waste discharge or further process waste water according to the amount of needed cycling use of water.At last, waste water then needs further processing as cycling use of water, so that the content of the bacterium in the waste water and impurity reaches the requirement of industrial water.To deliver to clear water reserviors through the waste water up to standard that the Integral biological filtering pool group is processed, waste water up to standard hydraulic retention 2.5 hours in clear water reserviors.The waste water up to standard of finishing dealing with in the clear water reserviors is delivered to reuse pool by clear water reserviors.Above-mentioned waste water up to standard adds first 5～15ppm polyaluminium chloride (polyaluminium chloride is diluted to 0.5%～1.0% solution before adding) in clear water reserviors are delivered to the process of reuse pool, then filter by fiber bundle filter and active carbon filter successively, the suspended impurity in the waste water is removed.Then add 30～40ppm clorox (in Cl) and process by ultraviolet ray disinfector, kill microorganism, bacterium in the waste water.At last waste water up to standard is called in reuse pool, waste water up to standard hydraulic retention 2～3 hours in reuse pool.Waste water up to standard is through reaching the requirement of paper water after the above-mentioned step.
The content of the main chemicals in the waste water before this method is processed: COD＜200mg/l, SS＜60mg/L, T≤35 ℃, PH:7～9.The discharging water outlet can reach after processing: COD≤60mg/l, SS≤30mg/L.Waste water after treatment.Water outlet discharging water quality reaches " integrated wastewater discharge standard " (GB8978-1996) primary standard requirement, and the water quality of recycle-water can satisfy the water quality requirement of industrial water.
After moving a period of time, in order to keep the production capacity of equipment, need to clean to equipment equipment the following recoil of operation water-washing step during cleaning.
Shown in Fig. 1,3, the recoil water-washing step is as follows:
Utilize backwash pump that the retaining in the clear water reserviors is transferred in Integral biological filtering pool group or fiber bundle filter or the active carbon filter, the mud that accumulates in Integral biological filtering pool group or fiber bundle filter or the active carbon filter is washed to storage basin.The retaining that utilizes the recoil water pump to call in the clear water reserviors is washed Integral biological filtering pool group or fiber bundle filter or active carbon filter.
The backwash sewage that recoil washing produces clarifying contaminated liquids 1～3 day in storage basin;
Then the supernatant in the storage basin is back to regulating reservoir, pending purification of waste water.
Last regularly with discharging storage basin after the sludge press filtration processed in the storage basin, mud is sent to harmless treatment.
The filter backwash cycle described in the above-mentioned step is 25 days.
An Integral biological filtering pool in 2 days backwash Integral biological filtering pools of Integral biological filtering pool group group described in the above-mentioned step of stating.
Claims (4)
1. the processing method of a paper waste is characterized in that described method is divided into purification of waste water step and recoil water-washing step; Described step is as follows:
(1) purification of waste water step:
(1.1) the plain boiled water waste water that produces in the paper-making process is filtered by the disc type filter, fibre bundle is separated with waste water;
(1.2) will deliver in the regulating reservoir through the waste water of disc type filter process waste water hydraulic retention 3～5 hours in regulating reservoir;
(1.3) will deliver to the Integral biological filtering pool group through the waste water that regulating reservoir is processed, waste water hydraulic retention 3～5 hours in the Integral biological filtering pool group forms waste water up to standard;
(1.4) will deliver to clear water reserviors through the waste water up to standard that the Integral biological filtering pool group is processed, waste water up to standard hydraulic retention 2～3 hours in clear water reserviors;
(1.5) waste water up to standard that will finish dealing with in clear water reserviors is delivered to reuse pool by clear water reserviors; Waste water up to standard adds first polyaluminium chloride in clear water reserviors are delivered to the process of reuse pool; Then filter by fiber bundle filter and active carbon filter successively, add again clorox and process by ultraviolet ray disinfector; The waste water up to standard of calling in reuse pool hydraulic retention 2～3 hours in reuse pool;
The recoil water-washing step:
(2.1) utilize backwash pump that the retaining in the clear water reserviors is transferred in Integral biological filtering pool group and/or fiber bundle filter and/or the active carbon filter, the mud that accumulates in Integral biological filtering pool group and/or fiber bundle filter and/or the active carbon filter is washed to storage basin;
(2.2) backwash sewage clarifying contaminated liquids 1～3 day in storage basin;
(2.3) supernatant of storage basin is back to regulating reservoir;
(2.4) regularly will discharge storage basin after the sludge press filtration processed in the storage basin.
2. the processing method of paper waste according to claim 1 is characterized in that the filter backwash cycle described in the described step (2.1) is 20～30 days.
3. the processing method of paper waste according to claim 2 is characterized in that an Integral biological filtering pool in 1～3 day backwash Integral biological filtering pool of the Integral biological filtering pool group group described in the described step (2.1).
4. according to claim 1 and 2 or the processing method of 3 described paper wastes, it is characterized in that the waste water up to standard after described step (1.4) is processed directly discharges; Waste water after described step (1.5) is processed reaches industrial water and requires to carry out again recycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010616781 CN102174763B (en) | 2010-12-30 | 2010-12-30 | Treatment method for paper making waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010616781 CN102174763B (en) | 2010-12-30 | 2010-12-30 | Treatment method for paper making waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102174763A CN102174763A (en) | 2011-09-07 |
| CN102174763B true CN102174763B (en) | 2013-01-02 |
Family
ID=44517986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010616781 Active CN102174763B (en) | 2010-12-30 | 2010-12-30 | Treatment method for paper making waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102174763B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328707A (en) * | 2014-10-31 | 2015-02-04 | 玖龙纸业（太仓）有限公司 | White water treatment method and device for paper-making machine |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058467B (en) * | 2013-01-22 | 2015-05-27 | 富民宝地纸业有限公司 | Water paper paper-making wastewater efficient treatment and comprehensive recycling method and device |
| CN103663776B (en) * | 2013-09-23 | 2015-07-15 | 浙江凯丰纸业有限公司 | Papermaking white water circulating treatment method and treatment device |
| CN104150676B (en) * | 2014-01-10 | 2017-02-08 | 广东金明环保科技有限公司 | Integrated equipment for domestic sewage treatment |
| CN104370415B (en) * | 2014-10-24 | 2016-03-16 | 王德军 | A kind for the treatment of system of paper waste |
| CN104370414A (en) * | 2014-10-24 | 2015-02-25 | 苏州富奇诺水治理设备有限公司 | Wastewater treatment system of multi-section process |
| CN107604736A (en) * | 2017-10-20 | 2018-01-19 | 南京必蓝环境技术有限公司 | A kind of plain boiled water step processing and reuse technology |
| CN109592827A (en) * | 2018-12-25 | 2019-04-09 | 北京鑫晟环能科技发展有限公司 | Reclaiming treatment method for hydraulic loom waste water |
| CN117142729A (en) * | 2023-10-31 | 2023-12-01 | 保利长大工程有限公司 | Special tunnel water burst pollution treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372382A (en) * | 2008-08-29 | 2009-02-25 | 北京桑德环保集团有限公司 | Advanced treatment method and processing system for wastepaper pulping and papermaking waste water |
| CN101591085A (en) * | 2008-05-29 | 2009-12-02 | 中国印钞造币总公司 | A paper mill wastewater treatment and reuse technology |
| CN101768887A (en) * | 2010-03-17 | 2010-07-07 | 山东泉林纸业有限责任公司 | Circular utilization method of straw in pulping and papermaking processes |
| CN101781003A (en) * | 2009-01-21 | 2010-07-21 | 中国科学院理化技术研究所 | Superconducting magnetic separation effluent treatment plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0722486D0 (en) * | 2007-11-16 | 2007-12-27 | Javel Ltd | Treatment of wastewater |
-
2010
- 2010-12-30 CN CN 201010616781 patent/CN102174763B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591085A (en) * | 2008-05-29 | 2009-12-02 | 中国印钞造币总公司 | A paper mill wastewater treatment and reuse technology |
| CN101372382A (en) * | 2008-08-29 | 2009-02-25 | 北京桑德环保集团有限公司 | Advanced treatment method and processing system for wastepaper pulping and papermaking waste water |
| CN101781003A (en) * | 2009-01-21 | 2010-07-21 | 中国科学院理化技术研究所 | Superconducting magnetic separation effluent treatment plant |
| CN101768887A (en) * | 2010-03-17 | 2010-07-07 | 山东泉林纸业有限责任公司 | Circular utilization method of straw in pulping and papermaking processes |
Non-Patent Citations (1)
| Title |
|---|
| 石富源.废纸造纸废水处理工程的设计与运行.《环境科学与技术》.2010,第33卷(第7期), * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328707A (en) * | 2014-10-31 | 2015-02-04 | 玖龙纸业（太仓）有限公司 | White water treatment method and device for paper-making machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102174763A (en) | 2011-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102174763B (en) | Treatment method for paper making waste water | |
| CN101746923A (en) | Coking wastewater deep treatment and reuse process and equipment thereof | |
| CN208234724U (en) | Advanced treatment and reuse of dyeing waste water and Zero emission device | |
| CN102815836A (en) | Treating system and treating method for hardly degradable organic waste water | |
| KR101205197B1 (en) | The production method of reusable water for high recoveries in industrial water | |
| CN108147615A (en) | It is a kind of to be directed to the Treated sewage reusing of chemical fibre viscose waste water and qualified discharge technique | |
| CN1262490C (en) | Reverse osmosis method for treating sewage | |
| CN105174637A (en) | Pretreatment process for papermaking tail water recycling and zero discharge | |
| CN104030517A (en) | Advanced treatment recovery technology of coking wastewater | |
| CN106116023A (en) | A kind of method of work of Waste Water Treatment | |
| CN102086079B (en) | Method and system for zero-discharge treatment of domestic sewage | |
| CN106396191A (en) | Emergency treatment process and device of waste water with high COD and high NH3-N | |
| CN102399026A (en) | A combined process for reuse of production sewage after treatment | |
| CN201914996U (en) | Papermaking waste water treatment device | |
| CN204752384U (en) | Electroplate rinsing effluent disposal system | |
| CN109264922A (en) | A kind of device and method of natural feather waste water recycling device | |
| CN213623750U (en) | A textile sewage treatment system | |
| CN205222944U (en) | Sewage treatment system | |
| CN112266121A (en) | Method and system for preparing desalted water by efficiently treating mixed surface water | |
| CN207468436U (en) | Urban sewage treatment system | |
| CN105884144A (en) | Process for efficiently treating sewage | |
| CN206089247U (en) | System for papermaking waste water treatment and retrieval and utilization | |
| CN211419839U (en) | Industrial circulating water drainage recycling treatment device | |
| CN104086043A (en) | Printing and dyeing wastewater treatment and recovery method | |
| CN211521944U (en) | A printing and dyeing wastewater treatment system |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jian Inventor after: Luo Weijian Inventor after: Ma Zhongde Inventor after: Xu Yingjie Inventor after: Yu Zhuanming Inventor after: Lu Jianguo Inventor after: Wang Peng Inventor before: Zhang Jian Inventor before: Luo Weijian Inventor before: Zhang Weihong Inventor before: Xu Yingjie Inventor before: Yu Zhuanming Inventor before: Lu Jianguo Inventor before: Wang Peng |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170418 Address after: 431605 Hubei, Xiaogan, Xiaonan Economic Development Zone, national highway, 316 National Highway Patentee after: Vinda (China) Co., Ltd. Address before: 432100 Hubei, Xiaogan, Xiaonan Economic Development Zone, national highway, 316 National Highway Patentee before: Vinda Paper Industry (Xiaogan) Co., Ltd. |
|
| TR01 | Transfer of patent right |