CN107265545A - A kind of offal water treatment agent for loading manganese dioxide and its application - Google Patents
A kind of offal water treatment agent for loading manganese dioxide and its application Download PDFInfo
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- CN107265545A CN107265545A CN201710465181.9A CN201710465181A CN107265545A CN 107265545 A CN107265545 A CN 107265545A CN 201710465181 A CN201710465181 A CN 201710465181A CN 107265545 A CN107265545 A CN 107265545A
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- Prior art keywords
- offal
- treatment agent
- water treatment
- manganese dioxide
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The present invention provides a kind of preparation method and applications for the offal water treatment agent for loading manganese dioxide, belongs to water technology and application field.The preparation method of water treatment agent comprises the following steps：Offal fine powder is added in deionized water, uniform suspension is formed under agitation, manganese sulfate and potassium permanganate are added in suspension, supersonic oscillations are centrifuged, washing, after freeze-day with constant temperature, room temperature is cooled to, produces the offal water treatment agent of load manganese dioxide.The water treatment agent that the present invention is provided, it is notable to Hg, As, Cd, Pb plasma in waste water and the adsorption effect of methyl orange, the main raw material(s) used simultaneously is offal, comprehensive utilization industry and agricultural wastes, greatly reduce production cost, the sustainable use of resource is realized, further expands the application value of tobacco waste.
Description
Technical field
Contain heavy metal the present invention relates to the preparation method of the offal water treatment agent of load manganese dioxide, and its for pre-processing
The application of the waste water of ion, belongs to water process and offal treatment technology and application field.
Background technology
With the high speed development of world industry, advanced industrial technology brings us and lived more and more facilities and new production
Product, while also causing many pollutions to environment.In China, because the past few decades are paid little attention to environmental protection, with warp
That helps develops rapidly, and environmental problem is also increasingly severe.Although country takes substantial amounts of control measure, law enforcement power is increased
Spend, but the trend of environmental degradation is still continuing.Either in city, or in rural area, air, river, soil etc. are all received
Different degrees of pollution.Various sewage are exactly one of substantial pollution.
Current China year blowdown flow rate is about 35,000,000,000 m3.In national annual sewage discharge, only 10% sanitary sewage and
70% trade effluent is handled, and wherein there are about the water outlet of half Industrial Waste Water Treatments facility do not reach country discharge mark
Standard, remaining untreated sewage is then directly discharged into rivers and lakes, causes the water environment of China to be subject to severe contamination and destruction；
The discharge capacity of town domestic sewage is just with city-building with development in incremental trend.These sewage largely discharged, give
Each water system of China's rivers,lakes and seas and environment cause serious pollution, give people healthy to bring great injury.Meanwhile,
With the further development of industry, the organism kinds and quantity used are also more and more, and produced waste water is also increasingly difficult to
Processing.Therefore it is badly in need of developing a kind of both economical, and efficiently, while the sewage treating material of a variety of pollutions can be handled.
Tobacco is one of leading industry of China's rural economy, and national tobacco planting area is up to more than 1,500 ten thousand mu.And offal
Enough wood fibre and cellulose are contained in part, after offal is crushed, and can obtain loose porous, surface with a large amount of oxygen-containing
The powder of functional group's (such as hydroxyl, carboxyl), its structure is similar to chitosan and cellulose powder.Theoretically analyze, this
The unique texture of class powder can have preferable absorption property to organic compound.Therefore, the processing of offal is to realize that tobacco can
The important channel of sustainable development.
Meanwhile, manganese dioxide is because of its unique chemical composition and physicochemical characteristics, with excellent characterization of adsorption and oxygen
Change degradation capability, presently disclosed is generally that the manganese dioxide of high content or the nano composite material containing manganese dioxide are used at waste water
Reason.Not yet had been reported that for wastewater treatment for offal powder load manganese dioxide.
The content of the invention
For above-mentioned present situation, the present invention is necessary to provide a kind of low cost, simple to operate, the strong wastewater treatment material of adsorption rate
The offal water treatment agent of material-load manganese dioxide, open its preparation method, and its for pre-processing the waste water containing heavy metal ion
Application..
On the one hand, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
Its preparation process is as follows：
5) waste tobacco stem is taken, is pulverized with pulverizer, after drying, the thick slag of offal is obtained；
6) the fine ground rear sieving again of the thick slag of offal, obtains offal fine powder, offal fine powder is added in deionized water, stirring is formed
Suspension；
7) to step 2) gained suspension in add manganese sulfate solution, after mixing add liquor potassic permanganate ultrasonic reaction,
Centrifuge, clean to obtain crude product；
8) by step 3) gained crude product dry at a constant temperature, be subsequently placed in drier and be cooled to room temperature, produce load two
The offal water treatment agent of manganese oxide.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
The offal is crushed to 10~50 mesh, and the present invention preferably thick slag of offal is 30 mesh or so.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
The drying of the thick slag of offal, can be sunlight exposure, oven baking, infrared drying, vacuum drying.Further, it is preferable to
For solar exposure.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
The offal particle diameter can be 100~200 mesh, further, and offal particle diameter can be 100 mesh.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
The step 3) in add after manganese sulfate solution, keep reaction system pH to be 6.0~8.5 with acid or alkali.The acid can be weak
Acid, such as carbonic acid, acetic acid.The alkali can be ammoniacal liquor etc., sodium acid carbonate or sodium carbonate.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
It can be 2~7 that the manganese sulfate solution, which mixes mol ratio with liquor potassic permanganate,:1~5.Further, mixing mol ratio can be with
For 2:1,3:2,5:3,7:5, further, mixing mol ratio can be 3:2,7:5.Further, mixing mol ratio is 7:
5。
Preferably, it is described it is an object of the invention to provide a kind of preparation method for the water treatment agent for loading manganese dioxide
The concentration of manganese sulfate solution is 0.05~5mol/L, and the concentration of liquor potassic permanganate is 0.05~5mol/L, and offal dosage is
10~350g/L.It is preferred that offal dosage is 50~150g/L.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
The condition of work of the ultrasonic reaction is：Ultrasound Instrument working frequency is 10~100kHz, and the time is 1~24 hour.Further
Ground, the Ultrasound Instrument working frequency is 30~80kHz, and ultrasonic time is 4~8 hours.Further, the Ultrasound Instrument work
Frequency is 10,20,30,50,60,70,80,100kHz, ultrasonic time is 4,5,6,7,8 hours.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
1~2h is stood after the completion of the ultrasonic reaction.
Preferably, it is an object of the invention to provide a kind of preparation method for the offal water treatment agent for loading manganese dioxide,
The temperature of the constant temperature drying can be 80~150 DEG C, further, and temperature can be 100~120 DEG C, further, dry
Dry temperature is preferably 110 DEG C.The drying time can be 8~12 hours, further, and drying time can be 10 hours.
On the other hand, it is an object of the invention to provide the offal water treatment agent of load manganese dioxide, the present invention is used
Methods described is prepared.
On the one hand, it is an object of the invention to provide a kind of purposes for the offal water treatment agent for loading manganese dioxide, it is used
Heavy metal pollution in processing waste water.
Compared with prior art, the offal water treatment agent of the load manganese dioxide of preparation of the present invention, using offal as load
Body, loads manganese bioxide material, and epigranular, good dispersion, stability is good, can Adsorption of Heavy Metals pollutant and organic dirt simultaneously
Contaminate thing, to Hg, As, Cd, Pb plasma in waste water and the adsorption effect of methyl orange significantly, with make up current adsorbent it is various not
Foot.Offal is used for primary raw material, comprehensive utilization industry and agricultural wastes greatly reduce production cost, and effectively realize money
The sustainable use in source, further expands the application value of offal, further expands the application value of tobacco waste.The present invention
The preparation method of offer is simple, with low cost, environment-friendly, is adapted to industrialized production and application.
Embodiment
With specific embodiment, the present invention is further illustrated below, but the present invention is not limited by following embodiments.
Those skilled in the art can use for reference present disclosure, be suitably modified technological parameter realization.In particular, it is all similar
Replacement and change it is apparent to those skilled in the art, they are considered as being included in the present invention.The present invention
Method and application be described by preferred embodiment, related personnel can substantially not depart from present invention, essence
Method described herein and application are modified in god and scope or suitably changed with combining, to realize and using skill of the present invention
Art.
Embodiment 1
1000g offals are chosen, 30 mesh or so are crushed to pulverizer, is exposed to the sun under sunshine 12 hours, obtains offal thick
Slag；By the thick slag of offal it is fine ground after, cross 100 mesh sieves, produce offal fine powder.At room temperature, 10g offal fine powders are weighed, 100ml is added to
In deionized water, magnetic agitation forms suspension.
At room temperature, 100ml 0.07mol/L manganese sulfate solutions are taken, are added in suspension A, magnetic agitation half an hour, are used
Sodium bicarbonate solution keeps reaction system pH to be 6.0~8.5, adds 100ml 0.05mol/L KMnO4Solution ultrasonic reaction,
Ultrasound Instrument working frequency is 20kHz, and the time is 8 hours, generates brownish black suspension, stands 2 hours, centrifuge, crude product is used
Deionized water is washed three times, reject filtrate, retains filter residue；
Freeze-day with constant temperature 12h, is subsequently placed in drier and is cooled to room temperature at 110 DEG C, produces the cigarette of load manganese dioxide
Obstruct water treatment agent.
Embodiment 2
1000g offals are chosen, 50 mesh or so are crushed to pulverizer, is exposed to the sun under sunshine 12 hours, obtains offal thick
Slag；By its it is fine ground after, cross 200 mesh sieves, produce offal fine powder.At room temperature, 5g offal fine powders are weighed, 100ml deionizations are added to
In water, magnetic agitation forms suspension.
At room temperature, 100ml 0.5mol/L manganese sulfate solutions are taken, are added in suspension, magnetic agitation 1 hour uses ammoniacal liquor
Solution keeps reaction system pH to be 6.0~8.5, adds 100ml 0.3mol/L KMnO4Solution ultrasonic reaction, Ultrasound Instrument work
Working frequency is 100kHz, and the time is 4 hours, generates brownish black suspension, stands 2 hours, centrifuges, crude product deionized water
Washing three times, reject filtrate retains filter residue；Freeze-day with constant temperature 12h, is subsequently placed in drier and is cooled to room temperature at 80 DEG C, i.e.,
The offal water treatment agent of manganese dioxide must be loaded.
Embodiment 3
1000g offals are chosen, 40 mesh or so are crushed to pulverizer, is exposed to the sun under sunshine 18 hours, obtains offal thick
Slag；By its it is fine ground after, cross 100 mesh sieves, produce offal fine powder.At room temperature, 15g offal fine powders are weighed, 100ml deionizations are added to
In water, magnetic agitation forms suspension.
At room temperature, 10ml 0.7mol/L manganese sulfate solutions are taken, are added in suspension, magnetic agitation 1 hour, keep anti-
It is 6.0~8.5 to answer system pH, adds 10ml 0.5mol/L KMnO4Solution ultrasonic reaction, Ultrasound Instrument working frequency is
10kHz, the time is 24 hours, generates brownish black suspension, stands 2 hours, is centrifuged, and crude product is washed with deionized three
Secondary, reject filtrate retains filter residue；Freeze-day with constant temperature 8h, is subsequently placed in drier and is cooled to room temperature at 150 DEG C, produces load
The offal water treatment agent of manganese dioxide.
Embodiment 4
1000g offals are chosen, 30 mesh or so are crushed to pulverizer, is exposed to the sun under sunshine 24 hours, obtains offal thick
Slag；By its it is fine ground after, cross 200 mesh sieves, produce offal fine powder.At room temperature, 35g offal fine powders are weighed, 100ml deionizations are added to
In water, magnetic agitation forms suspension.
At room temperature, 100ml 2mol/L manganese sulfate solutions are taken, are added in suspension, magnetic agitation 1 hour, reaction is kept
System pH is 6.0~8.5, adds 100ml 1mol/L KMnO4Solution ultrasonic reaction, Ultrasound Instrument working frequency is 80kHz,
Time is 1 hour, generates brownish black suspension, stands 2 hours, is centrifuged, and crude product is washed with deionized three times, reject filter
Liquid, retains filter residue；Freeze-day with constant temperature 10h, is subsequently placed in drier and is cooled to room temperature at 100 DEG C, produces load manganese dioxide
Offal water treatment agent.
Embodiment 5
At normal temperatures and pressures, 100ml 0.05mol/L methyl orange solutions are taken, adjust pH to 1.0. to take above-described embodiment with sulfuric acid
1 prepares gained each 5g of offal water treatment agent to embodiment 4, is separately added into methyl orange solution, stirring is filtered after 30 minutes.Take
50ml filtrate water samples, after placing 3 hours, add barium hydroxide 0.3g, to remove the influence of sulfate ion.30 points of stirring
Clock, with 0.45 μm of filtering with microporous membrane, takes filtrate (A498nm=0.321) with as former state (A508nm=1.566) carry out ultraviolet-visible
Absorption spectrum contrast test,.Test result is as follows：
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Chroma removal rate | 84.5% | 82.2% | 85.3% | 86.7% |
The chroma removal rate that the water treatment agent of preparation of the embodiment of the present invention is can be seen that from upper table result reaches 86.7%,
Adsorption effect is good.
Embodiment 6
The aqueous solution of the 100mL containing As, Hg, Cd, Pb ion is configured, the content of wherein As, Hg, Cd, Cu, Pb ion is respectively
100ppm.Add above-described embodiment 1 to embodiment 4 and prepare gained each 10g of water treatment agent, under the conditions of pH 5.5, shaken in constant temperature
1.0 hours (room temperature, oscillation rate is 150r/min) of vibration on device is swung, supernatant is taken, after 0.45 μm of membrane filtration, uses ICP-
The concentration of residual heavy metal ion in OES analysis supernatants, test result is as follows：
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| As | 3.34 | 3.16 | 2.63 | 2.52 |
| Hg | 1.47 | 1.25 | 1.06 | 0.88 |
| Cd | 5.74 | 7.12 | 6.68 | 5.68 |
| Pb | 0.82 | 0.76 | 0.72 | 0.65 |
It was found from upper table result, the heavy metal ion that water treatment agent prepared by the embodiment of the present invention can be effectively gone in water removal,
Effect is obvious.
Claims (10)
1. a kind of preparation method for the offal water treatment agent for loading manganese dioxide, it is characterised in that preparation process is as follows：
1) waste tobacco stem is taken, is pulverized with pulverizer, after drying, the thick slag of offal is obtained；
2) the fine ground rear sieving again of the thick slag of offal, obtains offal fine powder, offal fine powder is added in deionized water, stirring forms suspended
Liquid；
3) to step 2) gained suspension in add manganese sulfate solution, after mixing add liquor potassic permanganate ultrasonic reaction, centrifugation
Separation, cleans to obtain crude product；
4) by step 3) gained crude product dry at a constant temperature, be subsequently placed in drier and be cooled to room temperature, produce load titanium dioxide
The offal water treatment agent of manganese.
2. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
Offal pulverizes the thick slag of offal to form 10~50 mesh；The offal fine powder particle diameter is 100~200 mesh.
3. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
Step 3) in add after manganese sulfate solution, keep reaction system pH to be 6.0~8.5 with acid or alkali.
4. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
Manganese sulfate solution is 2~7 with liquor potassic permanganate reaction mol ratio:1~5.
5. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
Manganese sulfate solution is 7 with liquor potassic permanganate reaction mol ratio:5.
6. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
The concentration of manganese sulfate solution is 0.05~5mol/L, and the concentration of liquor potassic permanganate is 0.05~5mol/L, and offal dosage is
20~350g/L.
7. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
The condition of work of ultrasonic reaction is：Ultrasound Instrument working frequency is 10~100kHz, and the time is 1~24 hour, the ultrasonic reaction
After the completion of stand 1~2h.
8. the preparation method of the offal water treatment agent of load manganese dioxide according to claim 1, it is characterised in that described
The temperature of constant temperature drying is 80~150 DEG C, and the drying time is 8~12 hours.
9. a kind of offal water treatment agent for loading manganese dioxide, it is characterised in that with any described side of claim 1~8
Method is prepared.
10. a kind of purposes for the offal water treatment agent for loading manganese dioxide, it is characterised in that the purposes is in processing waste water
Heavy metal pollution and methyl orange pollution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710465181.9A CN107265545A (en) | 2017-06-19 | 2017-06-19 | A kind of offal water treatment agent for loading manganese dioxide and its application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710465181.9A CN107265545A (en) | 2017-06-19 | 2017-06-19 | A kind of offal water treatment agent for loading manganese dioxide and its application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109983987A (en) * | 2019-03-31 | 2019-07-09 | 贵州省贵福菌业发展有限公司 | A kind of edible fungus culturing base and its preparation method containing tobacco waste |
| CN109997611A (en) * | 2019-03-31 | 2019-07-12 | 贵州省贵福菌业发展有限公司 | A kind of tobacco waste preprocess method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879830A (en) * | 2016-06-29 | 2016-08-24 | 广西桂柳化工有限责任公司 | Method for preparing manganese dioxide adsorbent |
| CN105921109A (en) * | 2016-06-01 | 2016-09-07 | 湖南农业大学 | Biological carbon prepared from tobacco stems as well as preparation method and application thereof |
| CN106076255A (en) * | 2016-06-29 | 2016-11-09 | 广西桂柳化工有限责任公司 | A kind of preparation method of modified pomelo peel load manganese dioxide composite adsorbing material |
-
2017
- 2017-06-19 CN CN201710465181.9A patent/CN107265545A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921109A (en) * | 2016-06-01 | 2016-09-07 | 湖南农业大学 | Biological carbon prepared from tobacco stems as well as preparation method and application thereof |
| CN105879830A (en) * | 2016-06-29 | 2016-08-24 | 广西桂柳化工有限责任公司 | Method for preparing manganese dioxide adsorbent |
| CN106076255A (en) * | 2016-06-29 | 2016-11-09 | 广西桂柳化工有限责任公司 | A kind of preparation method of modified pomelo peel load manganese dioxide composite adsorbing material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109983987A (en) * | 2019-03-31 | 2019-07-09 | 贵州省贵福菌业发展有限公司 | A kind of edible fungus culturing base and its preparation method containing tobacco waste |
| CN109997611A (en) * | 2019-03-31 | 2019-07-12 | 贵州省贵福菌业发展有限公司 | A kind of tobacco waste preprocess method |
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Application publication date: 20171020 |