CN106186588A - A kind of Multistage settling processing system of paper waste - Google Patents
A kind of Multistage settling processing system of paper waste Download PDFInfo
- Publication number
- CN106186588A CN106186588A CN201610813670.4A CN201610813670A CN106186588A CN 106186588 A CN106186588 A CN 106186588A CN 201610813670 A CN201610813670 A CN 201610813670A CN 106186588 A CN106186588 A CN 106186588A
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- Prior art keywords
- pond
- disc type
- biodeposition
- type filter
- water
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Classifications
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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 present invention relates to the Multistage settling processing system of a kind of paper waste, including wastewater disposal basin, more than one biodeposition pond, more than one disc type filter, flocculation degraded pond, described wastewater disposal basin is connected by waste pipe and a biodeposition pond, biodeposition pond is discharged water pipe and is connected to disc type filter, the discharge water pipe of disc type filter is connected to flocculating sedimentation pond, and the discharge water pipe in flocculating sedimentation pond is connected to reuse pool.In the present invention, waste water, through above biodeposition or fiber filter, after eventually passing one flocculating sedimentation, reaches recycle water standard, can be transported to using as recycle-water of workshop.
Description
Technical field
The present invention relates to the Multistage settling processing system of paper waste, belong to field of waste water treatment.
Background technology
Water is Source of life, and global water shortage problem is increasingly severe, and using water wisely is advocated always, as with water
The commercial production industry of rich and influential family, more should carry out the reduction of discharging of water for industrial use, improves the cyclic utilization rate of water, it is to avoid water for industrial use
Waste.
Meanwhile, problem of environmental pollution is also on the rise, and boosts environmental awareness, and reduces pollutant, the most industrial
The discharge of sewage or waste water, is one of major reason causing environmental pollution, how to process arranging into of trade effluent or waste water
For reducing important measures of environmental pollution.
Paper industry is the industry that a polluted source discharge is serious, and paper-making process needs to use substantial amounts of water, traditional
A large amount of polluted sources are discharged in paper mill, water quality and soil all can be produced pollution, also produce substantial amounts of niff.Papermaking
The waste water of factory's discharge remains in the paper-making fibre in waste water containing in paper-making process, causes loss and the waste of paper-making fibre；
Possibly together with additive for paper making in the waste water in paper mill, most additive for paper making is the most volatilizable, can remain in soil or
In sewage, discharge can cause the pollution that cannot eliminate for a long time in the environment.
The whole production process of pulp and paper industry needs substantial amounts of water, and these water summarize substantial amounts of in process of production
Industry harmful substance, both cannot directly utilize, and direct discharge pollutes the environment again, and therefore, the stage each to pulping and papermaking processes produces
Raw waste water carries out recycling, has significant economy and social value, decides the survival and development of papermaking enterprise.
In paper industry, generally use chemical precipitation, air-flotation process and biological oxidation etc. place method to sewage or
Waste water processes.
Papermaking environmental protection coagulation traditional handicraft is just to precipitate or materialization flocculation sediment, flocculation process removal efficiency at present
Height, especially can remove the mailing pollutant of a large amount of macromolecule difficult degradation, and this carries out biochemical treatment for next step and has established base
Plinth, but, such process is only applicable to the waste water that load is relatively low.European countries are the most advanced, on materializing strategy
Eliminate horizontal sedimentation tank, use milk to rush the advanced sedimentation such as depositing reservoir, sludge blanket clarifier.
The technology of biomembrane ultra-filtration in recent years, reverse osmosis, electrodialysis, ion-exchange treatment means constantly occur.In papermaking
In industry, on the one hand the highest due to processing cost, on the other hand due to the complicated component of paper waste, intractability is big, therefore,
Industrialized ripe treatment technology is not the most still had to use.
Inventor finds Patent No. 2009100012690 through retrieval, and patent name is the processing method of paper waste
Patent of invention disclose by filtration, sand setting, flocculation sediment, and the pulping wastewater treatment method of separating and recovering step, its
Before inventive point is to carry out flocculation sediment in flocculant interpolation to pending middle water, to the wadding accounting for total consumption 70 90% weight
Solidifying agent carries out desalting processing, and achieving the goal is that the present treatment high salt that becomes with relatively low divides the paper waste of content, and can reach order
The result that people is satisfied.The present invention's is little for point, in commercial Application, there is application narrow and small, it is impossible to be applicable to wider model
The process of the paper waste enclosed.The present invention is not involved with making full use of the separation angle of the flocculate precipitate of flocculating sedimentation and carries
The effect of high flocculating sedimentation.
Inventor also retrieves a Patent No. 2009100012703, and patent name is the processing method of paper waste
Patent of invention, which disclose utilization filtration, flocculation sediment, QA2O process, and advanced treating, the inventive point of this patent
It is to use QA2O process to process the technology generations biochemical processing method for routine, reaches cost-effective, high treating effect, technique letter
Single beneficial effect.But such technique needs to use substantial amounts of chemical agent, in residual waste water after treatment, does not examine
Consider to efficient, the simple process that can be realized waste water by the method for multiple flocculating sedimentatioies of connecting.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention discloses the Multistage settling processing system of a kind of paper waste, this
Paper-making fibre in waste water can repeatedly be reclaimed by Multistage settling processing system, improves the response rate of paper-making fibre, reduces papermaking
The waste of fiber, waste water is through repeatedly biodegradation simultaneously, improves the clean-up performance of waste water, last flocculation treatment, removes waste water
In harmful chemicals, be finally reached the standard of recycle-water, it is possible to will process after water effect recycle-water, be again introduced into workshop for
Slurrying and papermaking.
The Multistage settling processing system of paper waste, including wastewater disposal basin, more than one biodeposition pond, more than one disk
Formula filter, flocculation degraded pond, is characterized in that described wastewater disposal basin is connected by waste pipe and a biodeposition pond, biological heavy
Fall pond is discharged water pipe and is connected to disc type filter, and the discharge water pipe of disc type filter is connected to flocculating sedimentation pond, and flocculation is heavy
The discharge water pipe in fall pond is connected to reuse pool.
Described biodeposition pond has two, the respectively first biodeposition pond and the second biodeposition pond, and disc type filters
Device has two, the respectively first disc type filter and the second disc type filter, and the Multistage settling of described paper waste processes
The method of work of system, including: described first biodeposition pond connects the waste water from wastewater disposal basin, and the first biodeposition pond purifies
Water after process is transported to the first disc type filter, and the discharge water of the first disc type filter is transported to the second biodeposition
Pond, the water after the purified treatment in the second biodeposition pond is transported to the second disc type filter, the second disc type filter
Discharge water be transported to flocculating sedimentation pond, the water after the purified treatment of flocculating sedimentation pond is transported to reuse pool.
Described biodeposition pond and disc type filter all have more than three, and biodeposition pond and disc type filter
Quantity is consistent, and the water side in biodeposition pond flows to neighbouring disc type filter by pipeline, biodeposition pond with
Be connected to this water side, biodeposition pond disc type filter composition one filter element, the biodeposition pond of more than three with
Disc type filter separately constitutes the filter element of more than three, and the filter element of more than three sequential series successively connects, useless
Water sequentially passes through each filter element, through the discharge of wastewater of all filter elements in flocculating sedimentation pond.
Described biodeposition pond includes exposing reaction tank and anaerobic reation pool, and the antibacterial in exposure reaction tank is oxygen bacterium of holding concurrently,
Waste water from wastewater disposal basin is connected to expose reaction tank through waste pipe, and waste water directly carries after discharging from exposure reaction tank
To anaerobic reation pool.
The bottom of described exposure reaction tank is provided with mudpan.
The present invention, due to biodeposition pond and the multistage-combination of disc type filter, at equipment investment, and the fortune of equipment
Row technology requires more single, in the actual motion in paper mill, has the biggest advantage, reduces the kind of sewage treatment equipment,
Avoid the maintenance of distinct device, need different maintenance crafts, paper mill is needed to the technology people of the different skin scope of deposit
Member, needs to expend substantial amounts of personnel and employs fund, and the time between overhauls(TBO) of different equipment is different with the repair time, will extend one
Leaving unused of other equipment in individual complete processing system, is unfavorable for making full use of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1,
Fig. 2 is the structural representation of the embodiment of the present invention 2,
Fig. 3 is the structural representation in biodeposition pond of the present invention,
Reference numerals list: 1 wastewater disposal basin, 2 biodeposition ponds, 2-1 the first biodeposition pond, 2-2 second is biological heavy
Fall pond, 3 disc type filters, 3-1 the first disc type filter, 3-2 the second disc type filter, 4 flocculation degradeds
Pond, 5 waste pipes, 6 discharge water pipe, 7 reuse pools, 8 exposure reaction tanks, and 9 anaerobic reation pools, 10 mud sink
Pond, shallow lake.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with the present invention.It should be understood that following detailed description of the invention is only
For the present invention being described rather than limiting the scope of the present invention.
Embodiment 1:
Fig. 1 is the structural representation of the embodiment of the present invention 1, visible in conjunction with accompanying drawing, and the present invention includes wastewater disposal basin 1, biodeposition pond
2, disc type filter 3, flocculation degraded pond 4, wastewater disposal basin 1 is connected with biodeposition pond 2 by waste pipe 5, biodeposition pond 2
Discharge water pipe 6 be connected to disc type filter 3, the discharge water pipe 6 of disc type filter 3 is connected to flocculating sedimentation pond 4, flocculation
The discharge water pipe 6 of Sedimentation tank 4 is connected to reuse pool 7.Wastewater disposal basin 1 receives the waste water from paper machine room, and waste water sinks at biology
Carrying out the purified treatment settled in fall pond 2, be cleaned in the waste water after process containing paper-making fibre, paper-making fibre directly discharges,
Not only causing the waste of paper-making fibre, paper-making fibre is not easy to be degraded in nature simultaneously, causes long-term pollution.Disc type
Paper-making fibre in waste water can be reclaimed by filter 3, is used as the fibrous raw material of papermaking, it is to avoid paper-making fibre is wasted.
Embodiment 2:
Fig. 2 is the structural representation of the embodiment of the present invention 2, visible in conjunction with accompanying drawing, and the present invention includes that 1, two biologies of wastewater disposal basin sink
2, two, pond of fall disc type filter 3, flocculation degraded pond 4, biodeposition pond 2 has two, the respectively first biodeposition pond 2-1
With the second biodeposition pond 2-2, disc type filter 3 has two, the respectively first disc type filter 3-1 and the second disc type
Filter 3-2, described first biodeposition pond 3-1 connect the waste water from wastewater disposal basin 1, at the first biodeposition pond 2-1 purification
Water after reason is transported to the first disc type filter 3-1, and it is biological heavy that the discharge water of the first disc type filter 3-1 is transported to second
Fall pond 2-2, the water after the purified treatment of the second biodeposition pond 2-2 is transported to the second disc type filter 3-2, the second circle
The discharge water of disc filter 3-2 is transported to flocculating sedimentation pond 4, and the water after the purified treatment of flocculating sedimentation pond 4 is transported to back
Millpond 7.From the waste water in paper mill, through the first biodeposition pond 2-1, it is cleaned process, then through the first disc type mistake
Filter 3-1, the fiber in waste water is recovered, and is again introduced into second from the waste water of the first disc type filter 3-1 discharge biological heavy
Fall pond 2-2, is processed by biodeposition again, reduces the pollutant load of waste water, by by twice biodegradable waste water, then
Secondary entrance the second disc type filter 3-2, the again paper-making fibre in absorption extraction waste water, improve the recovery of paper-making fibre
Rate, it is to avoid paper-making fibre is wasted, and also avoids paper-making fibre to exist in waste water, is unfavorable for that the following cycle of waste water uses.
Embodiment 3:
Including embodiment 1 and the equipment of embodiment 2, described biodeposition pond 2 and disc type filter 3 all have more than three,
And biodeposition pond 2 is consistent with the quantity of disc type filter 3, the water side in biodeposition pond 2 flows to neighbouring by pipeline
Disc type filter 3, biodeposition pond 3 and be connected to the disc type filter 3 of this water side, biodeposition pond 2 and form
One filter element, the biodeposition pond 2 of more than three and disc type filter 3 separately constitute the filter element of more than three,
The filter element of more than three sequential series successively connects, and waste water sequentially passes through each filter element, through all filter elements
Discharge of wastewater in flocculating sedimentation pond 4.When the ageing equipment of paper machine room, fine from the papermaking of the paper waste of paper machine room
The content of peacekeeping pollutant is of a relatively high, through biodeposition effect once or twice and disc type filter, can not
Well by pulping wastewater treatment to the degree that can recycle, in the case of not increasing device category and technology difficulty,
The number of times of biodeposition can be further added by and through the number of times of disc type filter 3, reach to process waste water so that it is can reach back
Receive the standard utilizing water, so can save the equipment investment that waste water is processed by paper mill, and operating procedure to the full extent
Input, it is to avoid complication waste water treatment process process, cause the sewage disposal talent needing more kind, it is to avoid waste water
Processing in technique, device category is various, maintenance trouble, or the maintenance of equipment and maintenance period inconsistent, equipment can not be filled
Divide and utilize.
Biodeposition in above-described embodiment 1, embodiment 2 or embodiment 3 processes and disc type filter 3 processes,
After reducing the pollutant load in sewage and reclaiming paper-making fibre, the water after the process of relative clean is carried out at flocculating sedimentation
Reason, can settle after being flocculated by the particulate pollutant in water so that the water after process can reach the standard of recycle-water.
Fig. 3 is the structural representation in biodeposition pond 2 of the present invention, visible in conjunction with accompanying drawing, and biodeposition pond includes that exposure is anti-
Answering pond 8 and anaerobic reation pool 9, the antibacterial in exposure reaction tank 8 is oxygen bacterium of holding concurrently, from the waste water of wastewater disposal basin 1 through waste pipe 5
Being connected to expose reaction tank 8, waste water is delivered directly to anaerobic reation pool 9 after discharging from exposure reaction tank 8.Enter biodeposition
First water in pond be exposed process, removes the nitrogen of waste water, subsequently into anaerobic reation pool, in complete anaerobism sublimity, waste water
In not organic big one's share of expenses for a joint undertaking in exposure reaction tank 8 reaction resolve into small-molecular-weight composition, it is achieved the removal of phosphorus.
The bottom of described exposure reaction tank 8 is provided with mudpan 10.A large amount of precipitate that pollute in waste water can be in exposure
Reaction tank 8 precipitates, focuses in mudpan 10, by centralized collection and process.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also includes
The technical scheme being made up of above technical characteristic combination in any.
Claims (1)
1. the method for work of the Multistage settling processing system of paper waste, this system includes wastewater disposal basin, more than one biodeposition
Pond, more than one disc type filter, flocculation degraded pond, is characterized in that, described wastewater disposal basin passes through waste pipe and a biology
Sedimentation tank connects, and biodeposition pond is discharged water pipe and is connected to disc type filter, and the discharge water pipe of disc type filter is connected to
Flocculating sedimentation pond, the discharge water pipe in flocculating sedimentation pond is connected to reuse pool；
Described biodeposition pond and disc type filter all have more than three, and biodeposition pond and the quantity of disc type filter
Unanimously；
Described method of work, flows to neighbouring disc type filter including: the water side in biodeposition pond by pipeline, and one
Individual biodeposition pond and disc type filter one filter element of composition being connected to this water side, biodeposition pond, more than three
Biodeposition pond and disc type filter separately constitute the filter element of more than three, the filter element of more than three is the most suitable
Sequence is connected in series, and waste water sequentially passes through each filter element, through the discharge of wastewater of all filter elements in flocculating sedimentation pond；
Described biodeposition pond includes exposing reaction tank and anaerobic reation pool, and the antibacterial in exposure reaction tank is oxygen bacterium of holding concurrently, from
The waste water of wastewater disposal basin is connected to expose reaction tank through waste pipe, and waste water is delivered directly to detest after discharging from exposure reaction tank
Oxygen reaction tank；
The bottom of described exposure reaction tank is provided with mudpan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813670.4A CN106186588A (en) | 2014-10-24 | 2014-10-24 | A kind of Multistage settling processing system of paper waste |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813670.4A CN106186588A (en) | 2014-10-24 | 2014-10-24 | A kind of Multistage settling processing system of paper waste |
| CN201410570446.8A CN104445802B (en) | 2014-10-24 | 2014-10-24 | The Multistage settling processing system of paper waste |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410570446.8A Division CN104445802B (en) | 2014-10-24 | 2014-10-24 | The Multistage settling processing system of paper waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106186588A true CN106186588A (en) | 2016-12-07 |
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Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410570446.8A Active CN104445802B (en) | 2014-10-24 | 2014-10-24 | The Multistage settling processing system of paper waste |
| CN201610814754.XA Withdrawn CN106145569A (en) | 2014-10-24 | 2014-10-24 | A kind of method of work of the Multistage settling processing system of paper waste |
| CN201610814474.9A Withdrawn CN106186590A (en) | 2014-10-24 | 2014-10-24 | The Multistage settling processing system of paper waste |
| CN201610814565.2A Withdrawn CN106277635A (en) | 2014-10-24 | 2014-10-24 | The method of work of the Multistage settling processing system of paper waste |
| CN201610813670.4A Pending CN106186588A (en) | 2014-10-24 | 2014-10-24 | A kind of Multistage settling processing system of paper waste |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410570446.8A Active CN104445802B (en) | 2014-10-24 | 2014-10-24 | The Multistage settling processing system of paper waste |
| CN201610814754.XA Withdrawn CN106145569A (en) | 2014-10-24 | 2014-10-24 | A kind of method of work of the Multistage settling processing system of paper waste |
| CN201610814474.9A Withdrawn CN106186590A (en) | 2014-10-24 | 2014-10-24 | The Multistage settling processing system of paper waste |
| CN201610814565.2A Withdrawn CN106277635A (en) | 2014-10-24 | 2014-10-24 | The method of work of the Multistage settling processing system of paper waste |
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| CN (5) | CN104445802B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409051A (en) * | 2018-04-23 | 2018-08-17 | 浙江兴舟纸业有限公司 | A kind of Multistage settling processing equipment of paper waste |
| CN109761439B (en) * | 2019-01-23 | 2023-08-25 | 陈卫红 | Papermaking sewage treatment equipment and treatment method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781056A (en) * | 2009-01-16 | 2010-07-21 | 山东泉林纸业有限责任公司 | Treatment method of waste papermaking water |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006069035A2 (en) * | 2004-12-21 | 2006-06-29 | Novozymes Biologicals, Inc. | Wastewater treatment compositions |
| CN101838945B (en) * | 2010-06-23 | 2012-11-07 | 永州湘江纸业有限责任公司 | Papermaking wastewater recycling method |
| CN102557352B (en) * | 2012-02-03 | 2013-11-27 | 厦门神绿环保科技有限公司 | Method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration |
| CN202576165U (en) * | 2012-05-22 | 2012-12-05 | 天津市大港巨龙造纸厂 | Corrugated paper waste water recovery system |
| US8986503B2 (en) * | 2013-03-13 | 2015-03-24 | Kadant Inc. | Whitewater recovery process |
| CN203878022U (en) * | 2014-05-04 | 2014-10-15 | 山东天地缘实业有限公司 | Non-wood clean pulping wastewater treatment system |
-
2014
- 2014-10-24 CN CN201410570446.8A patent/CN104445802B/en active Active
- 2014-10-24 CN CN201610814754.XA patent/CN106145569A/en not_active Withdrawn
- 2014-10-24 CN CN201610814474.9A patent/CN106186590A/en not_active Withdrawn
- 2014-10-24 CN CN201610814565.2A patent/CN106277635A/en not_active Withdrawn
- 2014-10-24 CN CN201610813670.4A patent/CN106186588A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781056A (en) * | 2009-01-16 | 2010-07-21 | 山东泉林纸业有限责任公司 | Treatment method of waste papermaking water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106186590A (en) | 2016-12-07 |
| CN104445802B (en) | 2017-03-15 |
| CN104445802A (en) | 2015-03-25 |
| CN106277635A (en) | 2017-01-04 |
| CN106145569A (en) | 2016-11-23 |
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Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |