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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- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- 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
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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
- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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Abstract
The invention discloses a graphene preparation residual liquid harmless treatment system which 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, and the output end of the washing tank is connected with the input end of the electrolytic filter tank through a pipeline; 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.
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)
1. The utility model provides a graphite alkene preparation residual liquid innocent treatment system, includes waste liquid pond, precipitation tank, reation kettle, wash tank, electrolysis filter tank and pressure filter, its characterized in that: the graphene residual liquid is connected with the input end of a waste liquid pool through a pipeline, the output end of the waste liquid pool is connected with the input end of a precipitation tank through a pipeline, the output end of the precipitation tank is connected with the input end of a reaction kettle through a pipeline, the output end of the reaction kettle is connected with the input end of a washing tank through a pipeline, the output end of the washing tank is connected with the input end of an 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.
2. The harmless treatment system for the graphene preparation residues according to claim 1, wherein: 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.
3. The harmless treatment system for the graphene preparation residues according to claim 1, wherein: 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.
4. The harmless treatment system for the graphene preparation residues according to claim 1, wherein: the heating temperature of the heating structure of the reaction kettle is 60-120 ℃.
5. The harmless treatment system for the graphene preparation residues according to claim 1, wherein: 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.
6. The graphene preparation residue harmless treatment system according to claim 1 or 5, wherein: and a washing liquid is arranged in the washing tank, and the washing liquid is a sodium carbonate or calcium hydroxide solution.
7. The harmless treatment system for the graphene preparation residues according to claim 1, wherein: 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.
8. The harmless treatment system for the graphene preparation residues according to claim 1, wherein: the filter press is used for purifying the electrolyzed liquid again and filtering the solid in the electrolyzed liquid onto the filter cloth.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN201911312689.0A 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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Application publication date: 20200327 |