CN110921959A - Graphene preparation residual liquid harmless treatment system - Google Patents
Graphene preparation residual liquid harmless treatment system Download PDFInfo
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- CN110921959A CN110921959A CN201911312689.0A CN201911312689A CN110921959A CN 110921959 A CN110921959 A CN 110921959A CN 201911312689 A CN201911312689 A CN 201911312689A CN 110921959 A CN110921959 A CN 110921959A
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- 239000007788 liquid Substances 0.000 title claims abstract description 91
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000005406 washing Methods 0.000 claims abstract description 38
- 239000002699 waste material Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000004062 sedimentation Methods 0.000 claims abstract 8
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims 2
- 230000032258 transport Effects 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- -1 graphite alkene Chemical class 0.000 description 4
- 238000005201 scrubbing Methods 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F2001/007—Processes including a sedimentation step
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- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
本发明公开了一种石墨烯制备残液无害化处理系统，包括废液池、沉淀槽、反应釜、洗涤槽、电解过滤槽和压滤机，所述石墨烯残液通过管道与废液池输入端相连接，所述废液池的输出端通过管道与沉淀槽的输入端相连接，所述沉淀槽的输出端通过管道与反应釜的输入端相连接，所述反应釜的输出端通过管道与洗涤槽的输入端相连接，所述洗涤槽的输出端通过管道与电解过滤槽的输入端相连接；通过本系统对石墨烯残液的处理，可以使得石墨烯残液的处理更加高效迅速，同时减少了因残液处理不当带来的污染问题，同时有效的减少了残液中的废渣含量，并对废渣进行了化学分解和统一收集，并且通过压滤机极大的增加了水源的净化率。
The invention discloses a harmless treatment system for graphene preparation residue, including a waste liquid pool, a sedimentation tank, a reaction kettle, a washing tank, an electrolytic filter tank and a filter press. The graphene residue passes through pipes and waste liquid. The input end of the pool is connected, the output end of the waste liquid pool is connected with the input end of the sedimentation tank through a pipeline, the output end of the sedimentation tank is connected with the input end of the reactor through a pipeline, and the output end of the reactor The input end of the washing tank is connected to the input end of the washing tank through the pipeline, and the output end of the washing tank is connected to the input end of the electrolytic filter tank through the pipeline; the processing of the graphene residual liquid by this system can make the treatment of the graphene residual liquid more convenient It is efficient and fast, and at the same time, it reduces the pollution caused by improper residual liquid treatment, and at the same time effectively reduces the content of waste residue in the residual liquid, and chemically decomposes and collects the waste residue. The purification rate of the water source.
Description
Technical Field
The invention belongs to the technical field of purification treatment, and particularly relates to a harmless treatment system for graphene preparation residues.
Background
Graphene is a single-layer carbon atomic surface material stripped from a graphite material, is a carbon two-dimensional structure, is a 'super material', has a wide application range, and can be used as a raw material from electronic products to body armor and paper making, and even for future space elevators. Graphite, concentrated sulfuric acid, potassium permanganate and hydrogen peroxide are used as main raw materials for preparing the graphene, and a large amount of cleaning wastewater, filtrate and the like are generated in the preparation process, so that the graphene production wastewater contains sulfuric acid, potassium permanganate, hydrogen peroxide and the like, and particularly the sulfuric acid content in the wastewater accounts for a great proportion.
The existing graphene residual liquid treatment and recovery process is free of related professional processes and systems, so that the residual liquid treatment can cause serious pollution, and meanwhile, due to the fact that the system specification is absent, the residual liquid treatment is time-consuming and resource-consuming, enterprise benefits are reduced, normal progress of work is delayed, and work difficulty is increased.
Disclosure of Invention
The invention aims to provide a harmless treatment system for graphene preparation residual liquid, which solves the problems that the existing graphene residual liquid proposed in the background art has no related professional flow and system during treatment and recovery, so that the treatment of the residual liquid can cause serious pollution, and meanwhile, the residual liquid treatment consumes time and resources due to the lack of system specifications, so that the enterprise benefit is reduced, and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a graphene preparation residual liquid harmless treatment system comprises a waste liquid pool, a precipitation tank, a reaction kettle, a washing tank, an electrolytic filter tank and a filter press, wherein graphene residual liquid is connected with the input end of the waste liquid pool through a pipeline, the output end of the waste liquid pool is connected with the input end of the precipitation tank through a pipeline, the output end of the precipitation tank is connected with the input end of the reaction kettle through a pipeline, the output end of the reaction kettle is connected with the input end of the washing tank through a pipeline, the output end of the washing tank is connected with the input end of the electrolytic filter tank through a pipeline, and the output end of the electrolytic filter tank is connected with the input end of the electrolytic filter tank through a pipeline;
the top of the waste liquid pool is provided with a clean water pipeline inlet, the middle of the bottom of the waste liquid pool is provided with a turntable for fully coinciding clean water with graphene residual liquid, one side of the outside of the waste liquid pool is provided with a first water pump, one end of the first water pump is connected with the waste liquid pool through a pipeline, the other end of the first water pump is connected with a precipitation tank, the interior of the precipitation tank is provided with a plurality of layers of filter screens for filtering, one side of the outside of the precipitation tank is provided with a second water pump, one end of the second water pump is connected with one end of the precipitation tank, the other end of the second water pump is connected with a reaction kettle, a heating structure is arranged in the reaction kettle, the side wall of the washing tank is provided with a liquid recovery pipeline, the washing tank is provided with a liquid discharge hole, the outside of the washing tank is provided with a third water pump, one end of the third water pump is connected with the washing tank, and, the electrolytic filter tank conveys the liquid to a filter press through a pipeline.
Furthermore, the rotary disc in the middle of the bottom of the waste liquid pool can be electrically driven or manually driven, a plurality of stirring blades are further arranged on the rotary disc and used for fully mixing clean water with the graphene residual liquid, and the mixed liquid is immersed for 8-10 hours.
Further, the inside filter screen of precipitation tank is the toper structure, the filter screen bottom is equipped with residue collection device, residue collection device's open area is greater than filter screen bottom exit area.
Further, the heating temperature of the heating structure of the reaction kettle is 60-120 ℃.
Further, the liquid recovery pipe is located at a position of the side wall of the washing tank near the bottom, and the liquid discharge hole is located at a position of the side wall of the washing tank near the bottom.
Furthermore, a washing liquid is arranged in the washing tank, and the washing liquid is a sodium carbonate or calcium hydroxide solution.
Furthermore, the operation temperature of the electrolytic filter tank is 30-55 ℃, the tank voltage is 2.2-3.2V, the anode current density is 320-960A/m, and the cathode current density is 522-3999A/square meter.
Further, the filter press is used for purifying the electrolyzed liquid again, and can filter the solid in the electrolyzed liquid onto the filter cloth.
Compared with the prior art, the invention has the beneficial effects that:
through the processing of this system to graphite alkene raffinate, can be so that the processing of graphite alkene raffinate is more high-efficient rapid, reduced simultaneously because of the incomplete pollution problem who brings of raffinate processing, simultaneously the effectual waste residue content that reduces in the raffinate to carry out chemical decomposition and unified collection to the waste residue, and through the very big purification rate that has increased the water source of pressure filter, improved the performance of enterprises, and systematic use degree of automation is higher, guaranteed the smooth progress of work, reduced the work degree of difficulty.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a graphene preparation residual liquid harmless treatment system comprises a waste liquid pool, a precipitation tank, a reaction kettle, a washing tank, an electrolytic filter tank and a filter press, wherein graphene residual liquid is connected with the input end of the waste liquid pool through a pipeline, the output end of the waste liquid pool is connected with the input end of the precipitation tank through a pipeline, the output end of the precipitation tank is connected with the input end of the reaction kettle through a pipeline, the output end of the reaction kettle is connected with the input end of the washing tank through a pipeline, the output end of the washing tank is connected with the input end of the electrolytic filter tank through a pipeline, and the output end of the electrolytic filter tank is connected with the input end of the electrolytic filter tank through a pipeline;
the top in waste liquid pond is equipped with clear water pipeline entry, be equipped with the carousel that is used for fully coinciding clear water and graphite alkene raffinate in the middle of the bottom in waste liquid pond, outside one side in waste liquid pond is equipped with first water pump, the one end of first water pump is connected through the pipeline with the waste liquid pond, the other end and the precipitation tank of first water pump are connected, the inside of precipitation tank is equipped with the multilayer and is used for filterable filter screen, outside one side in precipitation tank is equipped with the second water pump, the one end of second water pump is connected with the one end of precipitation tank, the other end of second water pump is connected with reation kettle, be equipped with heating structure in the reation kettle, the lateral wall of scrubbing tank is equipped with liquid recovery pipeline, the scrubbing tank is equipped with the liquid discharge hole, the outside of scrubbing tank is equipped with the third water pump, the one end and the scrubbing tank of third water pump are connected, the other end and the filter-tank of.
In this embodiment, the carousel in the middle of the waste liquid pond bottom can be electric drive or manual drive, still is equipped with a plurality of stirring leaves on the carousel, and a plurality of stirring leaves are used for fully fusing clear water and are mixed with graphite alkene raffinate, and the liquid is soaked for 8-10h after mixing.
In this embodiment, the inside filter screen of precipitation tank is the toper structure, and the filter screen bottom is equipped with residue collection device, and residue collection device's open area is greater than filter screen bottom exit area.
In this embodiment, the heating temperature of the heating structure of the reaction kettle is 60 to 120 ℃.
In this embodiment, the liquid recovery pipe is located at a position of the side wall of the washing tank near the bottom, and the liquid discharge hole is located at a position of the side wall of the washing tank near the bottom.
In this embodiment, a washing liquid is disposed inside the washing tank, and the washing liquid is a sodium carbonate or calcium hydroxide solution.
In the embodiment, the operation temperature of the electrolytic filter tank is 30-55 ℃, the tank voltage is 2.2-3.2V, the anode current density is 320-960A/m, and the cathode current density is 522-3999A/square meter.
In this embodiment, the filter press is used to purify the electrolyzed liquid again, and can filter the solid in the electrolyzed liquid onto the filter cloth.
The working principle and the using process of the invention are as follows: firstly, inputting graphene residual liquid into a waste liquid pool through a pipeline, then inputting clear water into the waste liquid pool, adding water to dilute the graphene residual liquid, then rotating a turntable to drive stirring blades to rotate, so that the mass percentage of sulfuric acid in concentrated sulfuric acid waste liquid in the residual liquid is 40% -60%, cooling the sulfuric acid to obtain diluent, then conveying the diluent into a precipitation tank through a first water pump, so that the diluent filters residues through a conical filter screen, uniformly collecting the residues through a residue collection device for other industrial fields, then conveying the precipitated liquid into a reaction kettle through a second water pump, carrying out secondary treatment and purification on the precipitated liquid through heating and operation of the reaction kettle, evaporating water and sulfuric acid in the precipitated liquid, inputting the evaporated liquid into a washing tank through a pipeline, and further evolving the liquid by using a calcium hydroxide solution in the washing tank, delivering the purified liquid to an electrolytic filter tank through a third water pump, electrifying an anode and a cathode in the electrolytic filter tank, electrolyzing the residual liquid for 27-35 minutes, and finally delivering the liquid to
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312689.0A CN110921959A (en) | 2019-12-18 | 2019-12-18 | Graphene preparation residual liquid harmless treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312689.0A CN110921959A (en) | 2019-12-18 | 2019-12-18 | Graphene preparation residual liquid harmless treatment system |
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| CN110921959A true CN110921959A (en) | 2020-03-27 |
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| CN201911312689.0A Pending CN110921959A (en) | 2019-12-18 | 2019-12-18 | Graphene preparation residual liquid harmless treatment system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382028A (en) * | 2013-08-17 | 2013-11-06 | 青岛中科昊泰新材料科技有限公司 | Preparation of graphene oxide and post-processing method for waste liquor |
| CN104085861A (en) * | 2014-07-11 | 2014-10-08 | 昆山明宽环保节能科技有限公司 | Device for recovering sulfuric acid from graphene acid-containing wastewater and corresponding technique thereof |
| CN107601740A (en) * | 2017-10-23 | 2018-01-19 | 南京旭羽睿材料科技有限公司 | A kind of graphene prepares raffinate harmless treatment and method |
| CN208500354U (en) * | 2018-06-07 | 2019-02-15 | 张钊 | A kind of device recycling sulfuric acid from graphene acid-bearing wastewater |
-
2019
- 2019-12-18 CN CN201911312689.0A patent/CN110921959A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382028A (en) * | 2013-08-17 | 2013-11-06 | 青岛中科昊泰新材料科技有限公司 | Preparation of graphene oxide and post-processing method for waste liquor |
| CN104085861A (en) * | 2014-07-11 | 2014-10-08 | 昆山明宽环保节能科技有限公司 | Device for recovering sulfuric acid from graphene acid-containing wastewater and corresponding technique thereof |
| CN107601740A (en) * | 2017-10-23 | 2018-01-19 | 南京旭羽睿材料科技有限公司 | A kind of graphene prepares raffinate harmless treatment and method |
| CN208500354U (en) * | 2018-06-07 | 2019-02-15 | 张钊 | A kind of device recycling sulfuric acid from graphene acid-bearing wastewater |
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