CN109499540A - It is a kind of based on the wastewater treatment material of canna charcoal, preparation method and application - Google Patents
It is a kind of based on the wastewater treatment material of canna charcoal, preparation method and application Download PDFInfo
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- CN109499540A CN109499540A CN201910020882.0A CN201910020882A CN109499540A CN 109499540 A CN109499540 A CN 109499540A CN 201910020882 A CN201910020882 A CN 201910020882A CN 109499540 A CN109499540 A CN 109499540A
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- CN
- China
- Prior art keywords
- charcoal
- canna
- bismuth ferrite
- wastewater treatment
- parts
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- 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.)
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Classifications
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- 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
-
- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0211—Compounds of Ti, Zr, Hf
-
- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0259—Compounds of N, P, As, Sb, Bi
-
- 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
- C02F1/28—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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Abstract
A kind of wastewater treatment material based on canna charcoal, including the charcoal, bismuth ferrite and carrier being made by canna, the charcoal and bismuth ferrite are supported on carrier；The weight ratio of the charcoal and bismuth ferrite is 1:30-15:2.Composite material bead of the invention, canna increment used is big, and canna blade is easy to get, it can be achieved that resource reuses.Bismuth ferrite is easy preparation.It is simple that composite material bead of the invention recycles separation method after having been treated, can reuse.Composite material bead production method of the invention is simple, does not need heavy mechanical equipment and manpower and material resources, can be mass-produced.
Description
Technical field
The present invention relates to a kind of wastewater treatment material more particularly to it is a kind of processing the waste water containing methylene blue based on beauty
The wastewater treatment material of people's any of several broadleaf plants charcoal, preparation method and application.
Background technique
Methylene blue appearance is that bottle green bronze gloss crystallizes (trihydrate), and water-soluble, ethyl alcohol does not dissolve in ethers.
Methylene blue is in alkalinity and has certain toxicity in water, is widely used in chemical indicator, dyestuff, biological stain and medicine
The fields such as object.The methylene blue being present in waste water easily causes chroma in waste water higher, and some researches show that dyestuffs pair in waste water
Environmental security and Health Impact are larger, and the waste water from dyestuff of too high levels can cause human allergy, chafing, cancer and change
Different equal adverse reactions.Therefore, the research for eliminating the Toxic (such as methylene blue) in dyeing waste water is constantly subjected to pay attention to.
Currently, generally comprising physico-chemical process, chemical method and biology by the processing method of goal in research of methylene blue
The three categories such as method.Physico-chemical process includes membrane separation technique, advanced oxidation processes, absorption method etc..Wherein membrane separation technique film blockage problem
Seriously, the high Fendon of expense and class Fendon oxidizing process process conditions are harsh, and running expense is high, and it is more to generate excess sludge.
Relative to this kind of processing method, absorption method can utilize physical absorption and the chemical adsorptivity of the powder or particle of cellular solid
Can, so that the pollutant in waste water is adsorbed in porous mass surface and is removed, has that expense is low, easily designed, equipment is simple, behaviour
Make convenient, purifying rate height, low power consumption and other advantages, is acknowledged as the important technology of dye wastewater treatment.It would therefore be desirable to sharp
Methylene blue adsorption number is carried out with a kind of suitable material.Activity, alkalinity, the idol in waste water can be effectively removed using active carbon
Nitrogen dyestuff, but since active carbon price is more expensive and desorption and regeneration is difficult, so that the adsorption treatment increased costs of waste water from dyestuff.At present
It has been found that steel slag, flyash, the industrial wastes such as biological sludge can adsorb the dyestuff in dyeing waste water, but contains weight in these substances
Metal pollutant is easy to happen secondary pollution.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of material be easy to get, be easily recycled,
The environmental-friendly wastewater treatment material based on canna charcoal.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows: a kind of waste water based on canna charcoal
Material is handled, including the charcoal, bismuth ferrite and carrier being made by canna, the charcoal and bismuth ferrite are supported on
On carrier；The weight ratio of the charcoal and bismuth ferrite is 1:30-15:2.In the present invention, charcoal has and active carbon phase
As pore structure and surface chemical property, equally have absorbing and reducing performance and reduce biological effectiveness effect.Generally
Graininess is powdered.Because having microcellular structure abundant and a biggish specific surface area, charcoal not only adsorption capacity it is strong but also
Adsorption capacity is big.Charcoal has water neutral and alkali dyestuff and reactive dye preferable de- in the case where solution is neutral or alkaline condition
Color effect.
But nowadays many charcoals all have the characteristics that particle is small and is difficult to separate, so in preparing the material we
It joined bismuth ferrite.Bismuth ferrite belongs to one kind of multi-ferroic material, has ferroelectricity and anti-ferromagnetism, and itself also have centainly
Adsorption effect.Bismuth ferrite is added in making the material to be conducive to the separation of material and increase the absorption property of material.
To have magnetic bismuth ferrite by carrier loaded on charcoal, so that composite material has magnetism, adsorb
After the completion of journey, as long as adding magnetic field near reaction system, composite material can be separated from solution rapidly under magneticaction.
The above-mentioned wastewater treatment material based on canna charcoal, it is preferred that the carrier is calcium alginate gel.Sea
Mosanom forms the mild condition of gel, and it has heat irreversible with the gel that calcium ion is formed, and has good biofacies
The advantages that capacitive and biodegradability.Alginic acid is slightly soluble in water, insoluble in most of organic solvent, meets water and gets wet, particle
Aquation makes its surface have viscosity.In addition, calcium alginate gel preparation is simple.
A kind of preparation method of the wastewater treatment material based on canna charcoal, comprising the following steps:
1) 1. the preparation of canna charcoal is cleaned canna blade, naturally dry to blade becomes fragile, breaks into powder；
2. the powder of step 1. is transferred in carbonizing apparatus, carbonized under anoxic or oxygen free condition in carbonizing apparatus；
Carbonization temperature is 200-1000 DEG C, is kept for 1-5 hours, and heating rate is 5-10 DEG C/min；Carbonizing apparatus is cooled to room temperature to obtain the final product
To canna charcoal；
2) it 1-10 parts of sodium alginates is weighed is dissolved in 100-1000 parts of ultrapure waters and carry out heating water bath, bath temperature is
50-100℃；3) the bismuth ferrite powder of 1-15 parts of 60-200 mesh and the canna charcoal of 2-30 parts of steps 1) preparation is added, it is permanent
Warm magnetic agitation 20-60min is until being uniformly mixed；
4) mixed solution of step 3) is added drop-wise to the CaCl that mass concentration is 1-10%2In solution, react 12 hours with
On, obtain composite material bead of uniform size.
Bismuth ferrite and canna charcoal are supported in alginate in the present invention, the load bead of preparation is easy
In separation of solid and liquid and recycle.
The preparation method of the above-mentioned wastewater treatment material based on canna charcoal, it is preferred that the system of the bismuth ferrite
Preparation Method the following steps are included:
1) 25-40 parts of ferric nitrates are weighed and 30-50 parts of sodium nitrate are dissolved in 95-300 parts of ethylene glycol monomethyl ethers, 0.1- is added
The nitric acid of 0.5 part of 0.1mol/L is uniformly mixed；
2) 10-20 parts of citric acids are dissolved in 50-170 parts of ethylene glycol, and add it to the mixing of step 1)
In solution；It is uniformly mixed；
3) mixed solution of step 2) is stirred into 1h at 50-100 DEG C, uniformly after by colloidal sol modulation oven temperature 100-
5~15h is heated at 200 DEG C；
4) continue heating after cooling until forming bismuth ferrite gel；
5) the bismuth ferrite gel of step 4) is put into Muffle furnace makes it heat 30-60min at 100-300 DEG C, then will be warm
Degree is adjusted to 400-600 DEG C of calcining 1-3h；
6) the calcined product of step 5) is ground into powder, sieving obtains the bismuth ferrite powder of 60-200 mesh.
The preparation method of the above-mentioned wastewater treatment material based on canna charcoal, it is preferred that will by claim 1 or
The wastewater treatment material of claim 2 contains in the waste water of methylene blue, and the additive amount in every milliliter of waste water is with wastewater treatment material
Material weight in wet base is calculated as 1-5g；It is 2-10 with salt acid for adjusting pH value, temperature is 15-45 DEG C, is shaken 4-10 hours.
Compared with the prior art, the advantages of the present invention are as follows: 1, of the invention composite material bead, canna used are raw
Long amount is big, and canna blade is easy to get, it can be achieved that resource reuses.Bismuth ferrite is easy preparation.2, composite material of the invention is small
It is simple that ball recycles separation method after having been treated, can reuse.3, composite material bead production method letter of the invention
It is single, heavy mechanical equipment and manpower and material resources are not needed, can be mass-produced.
Detailed description of the invention
Fig. 1 is the digital photograph of the wastewater treatment material bead based on canna charcoal prepared by embodiment 1.
Fig. 2 is the scanning electron microscope (SEM) photograph of the wastewater treatment material bead based on canna charcoal in embodiment 1.
Specific embodiment
To facilitate the understanding of the present invention, present invention work more comprehensively, is meticulously described below in conjunction with preferred embodiment,
But the protection scope of the present invention is not limited to the following specific embodiments.
It should be strongly noted that when to be described as " be fixed on, be fixed in, be connected to or be connected to " another for a certain element
When on element, it can be directly fixed, affixed, connection or is connected on another element, be also possible to by connecting among other
Fitting is indirectly fixed, affixed, connects or is connected on another element.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Embodiment 1
The present embodiment 1 is prepared based on the wastewater treatment material of canna charcoal by following steps:
(1) it weighs 32.3192g ferric nitrate and 38.8064g sodium nitrate is dissolved in the ethylene glycol monomethyl ether of 200mL, be added
15.3696g citric acid is dissolved in the ethylene glycol of 100mL by the nitric acid of 0.2ml0.1mol/L, is added in previous step solution, is incited somebody to action
Mixed solution stirs 1h at 60 DEG C, and colloidal sol is heated to 10h, closing baking oven at 100 DEG C of oven temperature of modulation after uniform
Door is opened, upper water is outwelled reheat several hours after cooling, bismuth ferrite gel is contained in porcelain cup, being put into Muffle furnace makes
It heats 30min at 200 DEG C, then adjusts the temperature to 500 DEG C of calcining 2h, closes Muffle furnace and open door and sample obtain after cooling
Calcined product is ground into powder by bismuth ferrite, and sieving obtains bismuth ferrite powder；
(2) canna blade is cleaned, naturally dry to blade becomes fragile, breaks into powder, and the powder is placed in corundum
In boat, then corundum boat is put into the quartz ampoule of electric tube furnace, the both ends of electric tube furnace seal and connecting pipe, one end and nitrogen
Gas tank connection is passed through nitrogen, and the other end is collected and processing exhaust gas, and electric tube furnace is filled with nitrogen discharge air, makes at pyrolytic process
In anoxic or oxygen free condition；Heating schedule is set, electric furnace is made to be heated to target temperature 500 according to the heating rate of 7 DEG C/min
DEG C, and kept for 5 hours, after pyrolytic process, electric furnace cooled to room temperature is taken out and canna charcoal is both made；
(3) 2g sodium alginate is weighed to be dissolved in 200mL ultrapure water (60 DEG C of heating water bath), institute in 2g step (1) is added
Canna charcoal temperature constant magnetic stirring 30min in the bismuth ferrite and 2g step (2) of system is until being uniformly mixed, being drawn with syringe
The mixed liquor is added dropwise to the CaCl that 400mL mass concentration is 4%2In solution, reaction 12 hours or more, size is obtained
Uniform composite material bead.
For the digital photo of composite material bead obtained above as shown in Figure 1, its appearance is in yellowish-brown, the partial size of bead is equal
Even, diameter is about 3mm.The scanning electron microscope (SEM) photograph of wastewater treatment material bead obtained based on canna charcoal as shown in Fig. 2,
Know that charcoal, bismuth ferrite are preferably loaded on together.
Composite material bead obtained in embodiment 1 is added to the methylene that mass concentration that volume is 50mL is 50mg/L
In base indigo plant waste water, the additive amount in every 50mL waste water is calculated as 2g with composite material bead wet weight, is 2 with salt acid for adjusting pH value,
3,4,5,6,7,8,9,10 are put into shaking table, adjust the temperature to 30 DEG C, shake 4 hours, with determined by ultraviolet spectrophotometry waste water
The surplus of Methylene Blue.The removal rate for calculating methylene blue is as shown in table 1.
Table 1: the removal rate of methylene blue under different pH
As shown in Table 1, with the increase of composite material bead and methylene blue waste water pH, methylene blue solution is gone
Except rate first increases and then decreases.
By composite material bead obtained in embodiment 1 be added to the mass concentration that volume is 50mL be 5,10,20,40,
60,80, in the methylene blue waste water of 100mg/L, the additive amount in every 50mL waste water is calculated as 2g with composite material bead wet weight,
It is 6 with salt acid for adjusting pH value, is put into shaking table, adjust the temperature to 30 DEG C, shakes 4 hours, it is useless with determined by ultraviolet spectrophotometry
The surplus of water Methylene Blue.The removal rate for calculating methylene blue is as shown in table 2.
Table 2: the removal rate of methylene blue under various concentration
As shown in Table 2, with the increase of methylene blue concentration, the removal rate of composite material bead is gradually reduced.
Claims (5)
1. a kind of wastewater treatment material based on canna charcoal, it is characterised in that: including the life being made by canna
Object charcoal, bismuth ferrite and carrier, the charcoal and bismuth ferrite are supported on carrier；The weight ratio of the charcoal and bismuth ferrite
For 1:30-15:2.
2. the wastewater treatment material according to claim 1 based on canna charcoal, it is characterised in that: the carrier is
Calcium alginate gel.
3. a kind of preparation method of the wastewater treatment material based on canna charcoal, which comprises the following steps:
1) 1. the preparation of canna charcoal is cleaned canna blade, naturally dry to blade becomes fragile, breaks into powder；2. will
The powder of step 1. is transferred in carbonizing apparatus, is carbonized under anoxic or oxygen free condition in carbonizing apparatus；Charing
Temperature is 200-1000 DEG C, is kept for 1-5 hours, and heating rate is 5-10 DEG C/min；Carbonizing apparatus is cooled to room temperature and obtains beauty
People's any of several broadleaf plants charcoal；
2) it 1-10 parts of sodium alginates is weighed is dissolved in 100-1000 parts of ultrapure waters and carry out heating water bath, bath temperature 50-100
℃；
3) the bismuth ferrite powder of 1-15 parts of 60-200 mesh and the canna charcoal of 2-30 parts of steps 1) preparation, constant temperature magnetic force is added
20-60min is stirred until being uniformly mixed；
4) mixed solution of step 3) is added drop-wise to the CaCl that mass concentration is 1~10%2In solution, reaction 12 hours or more, obtain
To composite material bead of uniform size.
4. the preparation method of the wastewater treatment material according to claim 3 based on canna charcoal, it is characterised in that:
The preparation method of the bismuth ferrite the following steps are included:
1) 25-40 parts of ferric nitrates are weighed and 30-50 parts of sodium nitrate are dissolved in 95-300 parts of ethylene glycol monomethyl ethers, 0.1-0.5 is added
The nitric acid of part 0.1mol/L, is uniformly mixed；2) 10-20 parts of citric acids are dissolved in 50-170 parts of ethylene glycol, and by its
It is added in the mixed solution of step 1)；It is uniformly mixed；
3) mixed solution of step 2) is stirred into 1h at 50~100 DEG C, uniformly after by colloidal sol modulation oven temperature 100-200
5~15h is heated at DEG C；
4) continue heating after cooling until forming bismuth ferrite gel；
5) the bismuth ferrite gel of step 4) is put into Muffle furnace makes it heat 30-60min at 100-300 DEG C, then by temperature tune
To 400-600 DEG C of calcining 1-3h；
6) the calcined product of step 5) is ground into powder, sieving obtains the bismuth ferrite powder of 60-200 mesh.
5. a kind of application of the wastewater treatment material based on canna charcoal as claimed in claim 1 or 2, feature exist
In: by the waste water that the wastewater treatment material of claim 1 or claim 2 is contained methylene blue, in every milliliter of waste water
Additive amount is calculated as 1-5g with wastewater treatment material weight in wet base；It is 2-10 with salt acid for adjusting pH value, temperature is 15-45 DEG C, shakes 4-10
Hour.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020882.0A CN109499540A (en) | 2019-01-09 | 2019-01-09 | It is a kind of based on the wastewater treatment material of canna charcoal, preparation method and application |
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| CN201910020882.0A CN109499540A (en) | 2019-01-09 | 2019-01-09 | It is a kind of based on the wastewater treatment material of canna charcoal, preparation method and application |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629172A (en) * | 2009-08-13 | 2010-01-20 | 浙江大学 | Method for preparing magnetic microbe immobilizing material for soil pollution repair and application thereof |
| CN102489253A (en) * | 2011-12-19 | 2012-06-13 | 南京大学 | Bismuth ferrate-carbon nano tube, preparation method thereof and method for treating organic dye wastewater by utilizing bismuth ferrate-carbon nano tube |
| CN104923153A (en) * | 2015-05-07 | 2015-09-23 | 浙江大学 | Preparation method for Canna biological carbon capable of simultaneously adsorbing ammonia nitrogen and cadmium |
| WO2016093471A1 (en) * | 2014-12-09 | 2016-06-16 | 효림산업주식회사 | Unpowered contaminated groundwater purifying system using siphon |
| CN108311117A (en) * | 2018-02-05 | 2018-07-24 | 中南林业科技大学 | A kind of magnetic bio Carbon Materials and preparation method thereof for heavy metal containing wastewater treatment |
| CN108905999A (en) * | 2018-07-20 | 2018-11-30 | 武汉沃特工程技术有限公司 | A kind of new bio charcoal plural gel and its preparation method and application |
-
2019
- 2019-01-09 CN CN201910020882.0A patent/CN109499540A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629172A (en) * | 2009-08-13 | 2010-01-20 | 浙江大学 | Method for preparing magnetic microbe immobilizing material for soil pollution repair and application thereof |
| CN102489253A (en) * | 2011-12-19 | 2012-06-13 | 南京大学 | Bismuth ferrate-carbon nano tube, preparation method thereof and method for treating organic dye wastewater by utilizing bismuth ferrate-carbon nano tube |
| WO2016093471A1 (en) * | 2014-12-09 | 2016-06-16 | 효림산업주식회사 | Unpowered contaminated groundwater purifying system using siphon |
| CN104923153A (en) * | 2015-05-07 | 2015-09-23 | 浙江大学 | Preparation method for Canna biological carbon capable of simultaneously adsorbing ammonia nitrogen and cadmium |
| CN108311117A (en) * | 2018-02-05 | 2018-07-24 | 中南林业科技大学 | A kind of magnetic bio Carbon Materials and preparation method thereof for heavy metal containing wastewater treatment |
| CN108905999A (en) * | 2018-07-20 | 2018-11-30 | 武汉沃特工程技术有限公司 | A kind of new bio charcoal plural gel and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 于长江等: "海藻酸钙/生物炭复合材料的制备及其对Pb(Ⅱ)的吸附性能和机制", 《环境科学》 * |
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Application publication date: 20190322 |