CN107362772A - A kind of charcoal preparation method for removing Heavy Metals in Waters lead - Google Patents
A kind of charcoal preparation method for removing Heavy Metals in Waters lead Download PDFInfo
- Publication number
- CN107362772A CN107362772A CN201710734697.9A CN201710734697A CN107362772A CN 107362772 A CN107362772 A CN 107362772A CN 201710734697 A CN201710734697 A CN 201710734697A CN 107362772 A CN107362772 A CN 107362772A
- Authority
- CN
- China
- Prior art keywords
- mao bamboon
- charcoal
- heavy metals
- removing heavy
- tube furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
Abstract
The invention discloses a kind of charcoal preparation method for removing Heavy Metals in Waters lead, comprise the following steps：S1. mao bamboon is preprocessed, to pulverulence that is clean and drying；S2. pretreated mao bamboon powder is pyrolyzed；S3. by thermal decomposition product in step S2, after pulverizing and sieving, mao bamboon charcoal is obtained.Beneficial effects of the present invention：（1）Rapid using growth, Economic Bamboo mao bamboon is easy to get as raw material, material, and beneficial to the large-scale production of charcoal, manufacture craft is succinct, low production cost.（2）Present invention preparation gained sorbing material heavy metal lead adsorption capacity is big, reaches 65.4 mg/g to Heavy Metals in Water Environment adsorption capacity；With higher economy and application value.
Description
Technical field
The present invention relates to biological carbon materials preparing technical field, it particularly relates to which a kind of remove Heavy Metals in Waters lead
Charcoal preparation method.
Background technology
Since the industrial revolution, heavy metal have become countries in the world development face study a question, sources of heavy metal is wide
It is general, including mining industry, smelting, fossil fuel etc. can all cause Heavy Metals in Waters to pollute.Heavy metal is due to difficulty in water body environment
Biodegradation, has a kind of pollutant of persistence and high bio-toxicity, and heavy metal can be planted by food chain enrichment to dynamic
Thing grows and ecological environment causes greater risk, so as to be damaged to human health.Wherein, lead is distributed extensively in nature
General, human body intake can accumulate in kidney and liver, cause aplastic anemia.Heavy metal lead pollution in water body is had resulted in water
Ecological environment reparation and human health significant threat.Reducing Heavy Metal Pollution restorative procedure at this stage mainly includes Physical, changes
Method and bioanalysis.Bioanalysis includes plant method and microbial method, and treatment effect is undesirable and affected by environment larger.Chemistry
, also can not scale use with Physical because cost of use is expensive and easily causes secondary pollution.
Charcoal is the material generated in inert atmosphere from the thermal transition of the biomass rich in carbon, belongs to black wood charcoal.With compared with
Big specific surface area and porosity, heavy metal have the adsorption effect of broad spectrum activity, and especially its cost of raw material is low, in recent years
It is widely popularized as a kind of sorbing material of Heavy Metals in Waters in water environment field.
Mao bamboon, it is grass family Phyllostachys plant, belongs to huge Scattered bamboos, be widely distributed in China Yangtze river basin.Mao bamboon exists
China's implantation time length, area is big, has the plant of larger economic value.It can be widely applied to construction industry, handicraft, food
Deng.
At present, Heavy Metals in Water Environment adsorbent is mainly with activated carbon and organic exchanger resins.Compared with charcoal, activity
The maximum difference of charcoal is to need to be activated using activator to obtain high-specific surface area, then through the steps such as overpickling, Yi Zao
Secondary pollution and increase cost of manufacture into environment.Researching and developing a kind of heavy metal has efficient absorption ability, and cost is low, nothing two
The sorbing material of secondary pollution, it has also become Heavy Metals in Water Environment repairs the study hotspot in field.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of charcoal for removing Heavy Metals in Waters lead
Preparation method, heavy metal lead is adsorbed applied to removing in water body, efficiently solves water environment heavy metals removal process adsorption capacity
Low, the shortcomings of cost is too high.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of charcoal preparation method for removing Heavy Metals in Waters lead, comprises the following steps：
S1. mao bamboon is preprocessed, to pulverulence that is clean and drying；
S2. pretreated mao bamboon powder is pyrolyzed；
S3. by thermal decomposition product in step S2, after pulverizing and sieving, mao bamboon charcoal is obtained.
Further, the pretreatment specifically comprises the following steps：Fresh bamboo is ground into it is powdered, wash 3 times, put
It is placed at aeration-drying and air-dries, or is put into 90 DEG C of oven for drying 24h.Pre-processed according to the method described above, dedusting can be gone
Soil and influence of the moisture to pyrolytic process, make the charcoal purity that finally gives higher, the absorption property of heavy metal ion is more
It is good, allow except the influence of dust and moisture to pyrolytic process minimizes.
Further, step S2 specifically comprises the following steps：
Pretreated mao bamboon is put into vacuum tube furnace by step A., uses N2Replace the air in vacuum tube furnace；
Step B. is pyrolyzed to the mao bamboon in vacuum tube furnace, and pyrolytic process is continually fed into N2Until reaction terminates.
Further, N is used in the step A2The method of air in displacement vacuum tube furnace is specially：To electron tubes type
Stove evacuation, reach -0.1Mpa to vacuum, be passed through N2, recover normal pressure, repeat aforesaid operations once.Replaced by this mode
Air, the air pocket in vacuum tube furnace can be made to be reduced to the degree that can not be almost impacted to pyrolytic process.
Further, the method being pyrolyzed in the step B to the mao bamboon in vacuum tube furnace is specially：Open vacuum
The air outlet valve of tube furnace, the flow of outlet is maintained 50 ml/min, be warming up to 650 DEG C with 5 DEG C/min speed, keep 1 ~ 8
Hour, pyrolytic process is continually fed into N2, terminate until reacting, tube furnace be down to room temperature.
Further, the mao bamboon can be replaced with firm bamboo.
Further, the vacuum tube furnace can be replaced with atmosphere Muffle furnace.
Further, the mao bamboon is fresh adult mao bamboon.
Further, powder diameter is 80 ~ 100 mesh in the step S1.
Further, it is 80 ~ 100 mesh that thermal decomposition product, which pulverizes and sieves rear particle diameter, in the step S3
Beneficial effects of the present invention：（1）Rapid using growth, Economic Bamboo mao bamboon is easy to get as raw material, material, beneficial to charcoal
Large-scale production, manufacture craft is succinct, low production cost.
（2）Present invention preparation gained sorbing material heavy metal lead adsorption capacity is big, and Heavy Metals in Water Environment is adsorbed and held
Amount reaches 65.4 mg/g；With higher economy and application value.
Brief description of the drawings
Fig. 1 is the Raman spectrogram of the mao bamboon charcoal prepared in present example 1（600℃）.
Fig. 2 is the mao bamboon charcoal thermogravimetric analysis figure prepared in present example 1.
Fig. 3 is the xps spectrograms of the mao bamboon charcoal prepared in present example 1.
Fig. 4 is the SEM-DES of the mao bamboon biology prepared in present example 1（Electron scanning phenomenon-element energy）Figure.
Embodiment
Below in conjunction with specific embodiment, technical scheme is clearly and completely described, embodiment is only used
In explaining the present invention, not limiting the present invention.
Embodiment one
Fresh bamboo is ground into it is powdered, washing 3 times after, be then placed into air-drying at aeration-drying.
Mao bamboon powder is put into vacuum tube furnace, to electron tubes type stove evacuation, reaches -0.1Mpa to vacuum, is passed through
N2, recover normal pressure, repeat aforesaid operations once.
The air outlet valve of vacuum tube furnace is opened, the flow of outlet is maintained 100 ml/min, with 5 DEG C/min speed liter
Temperature is kept for 3 hours to 650 DEG C, and pyrolytic process is continually fed into N2, terminates until reacting, tube furnace is down into room temperature, thermal decomposition product
After crushing, the powder mao bamboon charcoal that particle diameter is 80 ~ 100 is obtained by grinding sieving.
It is 38.3% that the present embodiment, which obtains mao bamboon charcoal yield, and specific surface area is 118.3 m2/g, porosity 0.063
Cm3/g, aperture are 4.24 nm, and micropore ratio is 0.29, and porosity is preferable, and biological carbon surface contains abundant acidic functionality；
Content of ashes is 22.3%, and tenor does not detect, will not produce pollution to water body, to water environment low-risk, can be applied to get dirty
Contaminate the removal of Heavy Metals in Waters.
Charcoal adsorption effect is by taking the experiment of Lead in Aqueous Solution as an example.
By the gained charcoal of embodiment one（P1）Testing adsorption effect is carried out, is comprised the following steps：Configure leaded 100 mg/
It is 0.08g that the ml of L nitric acid cadmium solution 40 adds P1 mass in centrifuge tube, sets 3 parallel sampleses, and charcoal is not added in setting
Dummy, centrifuge tube is then positioned in 150r/min constant incubators 24 DEG C of vibration 24h, supernatant is taken after centrifugation,
Remaining lead ion content in equilibrium liquid is determined using ICP-OES, so as to obtain charcoal adsorbance.Charcoal pair is obtained through analysis
Lead ion adsorption capacity reaches 14.5mg/g.The adsorbance that gained charcoal in embodiment one is carried out to heavy metal containing sewage is tested,
Measure adsorption capacity and reach 65.4 mg/g.
Applicant by repeatedly testing repeatedly, final gained mao bamboon charcoal indices testing result fluctuation very little, weight
Existing property is good.
Embodiment two
The difference of embodiment two and embodiment one is, mao bamboon is replaced with to firm bamboo in belonging to together.
Embodiment three
The difference of embodiment three and embodiment one is, vacuum tube furnace is replaced with into atmosphere Muffle furnace.
Embodiment two and the gained charcoal of embodiment one do not had into notable difference in indices testing result.
Embodiment three and the gained charcoal of embodiment one do not had into notable difference in indices testing result.
The present invention is by the way that using mao bamboon as raw material, high temperature pyrolysis generation is rich in the charcoal of carbon.The cost of raw material is relatively low, obtains
To charcoal there is larger specific surface area and porosity, heavy metal lead ion has the adsorption effect of broad spectrum activity, and nothing
Secondary pollution.
In summary, the charcoal prepared using mao bamboon as raw material, can be applied to going for Heavy Metals in Water Environment lead ion
Remove.The present invention overcomes the problem of adsorption effect is poor, cost is high in existing adsorption technology heavy metal adsorption process；Charcoal simultaneously
Carbonisation, cause carbonic acid to seal up for safekeeping in charcoal, reduce greenhouse gases CO2Discharge, it is beneficial to environmental ecology effects.
Claims (10)
1. a kind of charcoal preparation method for removing Heavy Metals in Waters lead, it is characterised in that comprise the following steps：
S1. mao bamboon is preprocessed, to pulverulence that is clean and drying；
S2. pretreated mao bamboon powder is pyrolyzed；
S3. by thermal decomposition product in step S2, after pulverizing and sieving, mao bamboon charcoal is obtained.
2. the method that a kind of trace oxygen atmosphere pyrolysis according to claim 1 prepares mao bamboon charcoal, it is characterised in that
The pretreatment specifically comprises the following steps：Fresh bamboo is ground into it is powdered, wash 3 times, be positioned over wind at aeration-drying
It is dry, or it is put into 90 DEG C of oven for drying 24h.
A kind of 3. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 1, it is characterised in that step
Rapid S2 specifically comprises the following steps：
Pretreated mao bamboon is put into vacuum tube furnace by step A., uses N2Replace the air in vacuum tube furnace；
Step B. is pyrolyzed to the mao bamboon in vacuum tube furnace, and pyrolytic process is continually fed into N2Until reaction terminates.
A kind of 4. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 3, it is characterised in that institute
State in step A and use N2The method of air in displacement vacuum tube furnace is specially：To electron tubes type stove evacuation, reached to vacuum
To -0.1Mpa, N is passed through2, recover normal pressure, repeat aforesaid operations once.
A kind of 5. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 3, it is characterised in that institute
Stating the method being pyrolyzed in step B to the mao bamboon in vacuum tube furnace is specially：The air outlet valve of vacuum tube furnace is opened, is used
The flow of gas is maintained 50 ml/min, is warming up to 650 DEG C with 5 DEG C/min speed, is kept for 1 ~ 8 hour, pyrolytic process persistently leads to
Enter N2, terminate until reacting, tube furnace be down to room temperature.
A kind of 6. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 1, it is characterised in that institute
Stating mao bamboon can be replaced with firm bamboo.
7. the method that a kind of trace oxygen atmosphere pyrolysis according to claim 3 ~ 5 prepares mao bamboon charcoal, its feature exist
In the vacuum tube furnace can be replaced with atmosphere Muffle furnace.
A kind of 8. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 1, it is characterised in that institute
It is fresh adult mao bamboon to state mao bamboon.
A kind of 9. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 1, it is characterised in that institute
It is 80 ~ 100 mesh to state powder diameter in step S1.
A kind of 10. charcoal preparation method for removing Heavy Metals in Waters lead according to claim 1, it is characterised in that
It is 80 ~ 100 mesh that thermal decomposition product, which pulverizes and sieves rear particle diameter, in the step S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734697.9A CN107362772A (en) | 2017-08-24 | 2017-08-24 | A kind of charcoal preparation method for removing Heavy Metals in Waters lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734697.9A CN107362772A (en) | 2017-08-24 | 2017-08-24 | A kind of charcoal preparation method for removing Heavy Metals in Waters lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107362772A true CN107362772A (en) | 2017-11-21 |
Family
ID=60310926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710734697.9A Pending CN107362772A (en) | 2017-08-24 | 2017-08-24 | A kind of charcoal preparation method for removing Heavy Metals in Waters lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107362772A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108212081A (en) * | 2017-12-20 | 2018-06-29 | 新疆医科大学 | A kind of Xi Payi consolidates the gum liquid dregs of a decoction and prepares the method for charcoal and the application of charcoal |
| CN110193348A (en) * | 2019-06-14 | 2019-09-03 | 湘潭大学 | A kind of preparation method and applications of nitrogen P Modification lotus leaf charcoal |
| CN111847423A (en) * | 2020-08-20 | 2020-10-30 | 南开大学 | Preparation method and application of phosphorus modified biochar |
| CN113967462A (en) * | 2021-06-10 | 2022-01-25 | 南通大学 | Preparation method and application of waste paperboard biochar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382625A (en) * | 2002-06-09 | 2002-12-04 | 陈文照 | Process for preparing activated carbon from bamboo |
| CN101195485A (en) * | 2007-12-14 | 2008-06-11 | 宁夏广华活性炭有限公司 | Production method of bamboo absorbent charcoal |
| CN104891488A (en) * | 2015-05-27 | 2015-09-09 | 合肥卓元科技服务有限公司 | High-temperature carbonization preparation method of bamboo activated carbon with high yield |
| CN106190141A (en) * | 2016-07-04 | 2016-12-07 | 时科生物科技（上海）有限公司 | A kind of bamboo charcoal soil conditioner and preparation method thereof |
-
2017
- 2017-08-24 CN CN201710734697.9A patent/CN107362772A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382625A (en) * | 2002-06-09 | 2002-12-04 | 陈文照 | Process for preparing activated carbon from bamboo |
| CN101195485A (en) * | 2007-12-14 | 2008-06-11 | 宁夏广华活性炭有限公司 | Production method of bamboo absorbent charcoal |
| CN104891488A (en) * | 2015-05-27 | 2015-09-09 | 合肥卓元科技服务有限公司 | High-temperature carbonization preparation method of bamboo activated carbon with high yield |
| CN106190141A (en) * | 2016-07-04 | 2016-12-07 | 时科生物科技（上海）有限公司 | A kind of bamboo charcoal soil conditioner and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| CHAO ZHANG ET AL.: "Comparison of cadmium and lead sorption by Phyllostachys pubescens biochar produced under a low-oxygen pyrolysis atmosphere", 《BIORESOURCE TECHNOLOGY》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108212081A (en) * | 2017-12-20 | 2018-06-29 | 新疆医科大学 | A kind of Xi Payi consolidates the gum liquid dregs of a decoction and prepares the method for charcoal and the application of charcoal |
| CN110193348A (en) * | 2019-06-14 | 2019-09-03 | 湘潭大学 | A kind of preparation method and applications of nitrogen P Modification lotus leaf charcoal |
| CN111847423A (en) * | 2020-08-20 | 2020-10-30 | 南开大学 | Preparation method and application of phosphorus modified biochar |
| CN113967462A (en) * | 2021-06-10 | 2022-01-25 | 南通大学 | Preparation method and application of waste paperboard biochar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107983300B (en) | The charcoal composite material and preparation method and application of manganese dioxide modification | |
| CN107362772A (en) | A kind of charcoal preparation method for removing Heavy Metals in Waters lead | |
| CN108311104A (en) | A kind of charcoal preparation method of synchronous pyrolysis load iron | |
| CN109603749B (en) | Preparation method and application of modified straw stalk biochar | |
| CN104056600B (en) | A kind of modified activated carbon absorbent and preparation method thereof | |
| CN106622138A (en) | Enteromorpha biochar | |
| CN111701566B (en) | Adsorbent and preparation method and application thereof | |
| CN107362773A (en) | It is a kind of efficiently to remove heavy metal lead and cadmium mushroom bacteria residue charcoal adsorbent and preparation method thereof | |
| CN111389356B (en) | Preparation method of graphene oxide and magnetic sludge biochar composite material applied to removal of low-concentration imidacloprid in water | |
| CN106881071A (en) | A kind of preparation method of modified activated carbon/diatomite adsorbant | |
| CN113786804B (en) | Preparation method and application of magnetic porous composite material for adsorbing heavy metals | |
| CN110302751A (en) | Composite biomass charcoal material and preparation method and application thereof | |
| CN109967033A (en) | A kind of modified rice husk biomass carbon and preparation method thereof | |
| CN111704191A (en) | Preparation method and application of cyanobacteria biochar material with efficient riboflavin adsorption | |
| CN107670637A (en) | A kind of preparation method for efficiently removing heavy metal lead and cadmium flat mushroom bacteria residue biology carbon adsorbent | |
| CN112093789A (en) | Method for preparing biochar based on tea garden waste and biochar | |
| CN110614078A (en) | Preparation of potassium permanganate modified heavy metal cadmium adsorbent | |
| CN107684898A (en) | A kind of method that trace oxygen atmosphere pyrolysis prepares mao bamboon charcoal | |
| CN111154810A (en) | Mineral biological modification method for holding lead ions under acidic condition, modified mineral material and application | |
| CN113952926B (en) | Method for synchronously removing arsenic and organic pollutants by using ferrihydrite nanoparticle-loaded biochar prepared by combining biological/chemical means | |
| CN102838112A (en) | Preparation method of activated carbon | |
| Uraki et al. | Preparation of activated carbon from peat | |
| CN107456950A (en) | A kind of preparation of brewex's grains charcoal and its application in lead waste water | |
| CN107175072A (en) | The preparation and its application in typical organochlorine pesticides in removing water environment of a kind of biological carbon based material | |
| CN106311148A (en) | Biocharcomposite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171121 |
|
| RJ01 | Rejection of invention patent application after publication |