CN108117125A - The method for removing dyes - Google Patents
The method for removing dyes Download PDFInfo
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- CN108117125A CN108117125A CN201611085188.XA CN201611085188A CN108117125A CN 108117125 A CN108117125 A CN 108117125A CN 201611085188 A CN201611085188 A CN 201611085188A CN 108117125 A CN108117125 A CN 108117125A
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- slag
- dyestuff
- removal
- dyes
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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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
-
- 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
- B01J20/0248—Compounds of B, Al, Ga, In, Tl
-
- 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
-
- 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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- 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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
Abstract
The invention discloses a kind of methods for removing dyes, comprise the following steps：Modified steel scoria with waste water from dyestuff is mixed and carries out vibration absorption, completes the processing to waste water from dyestuff；Modified steel scoria is made by slag through high temperature modified and salicylic acid solution is modified.The method of the present invention carries out adsorption treatment using modified steel scoria to waste water from dyestuff, the removal rate of Wastewater Dyes is up on 98%, realize the efficient removal to Wastewater Dyes, have many advantages, such as that cost is relatively low, treatment effeciency is high, high treating effect, treatment process are simple and convenient to operate, investment cost and operating cost are low, secondary pollution will not be caused, while also achieve the recycling recycling to solid waste slag.
Description
Technical field
The invention belongs to field of environmental improvement, and in particular to a kind of method for removing dyes.
Background technology
The harm of synthetic dyestuffs is increasingly paid attention to by people in environment.The annual dyestuff for having few hundred thousand tonnes of is released
To among water body, these dyestuffs not only endanger the health of aquatic animal and the mankind but also reduce the translucency of water body so as to hinder
The photosynthesis of system.Its Methylene Blue be it is a kind of it is most common, be widely used general commercial synthesis dyestuff.Containing methylene blue
Waste water is essentially from plastics, weaving, leather, cosmetics, papermaking, printing and dyestuff process industry.Research shows methylene blue energy
Enough eyes to humans and animals generate expendable damage, in addition, methylene blue can also cause heart rate to rise, vomiting, shock,
Heinz bodies disease, cyanosis, jaundice and tissue necrosis.Therefore, to the processing of environment Methylene Blue waste water into
For one of current urgent problem to be solved.
Improvement for waste water from dyestuff, traditional method have absorption, ion exchange, chemical coagulation, electrolysis and biological treatment
Deng.In these methods, absorption method has obtained extensive concern because of its high efficiency.Absorption method is a kind of easy, simple waste water
Processing method has bentonite, activated carbon etc. using relatively broad adsorbent at present, but these adsorbents are adsorbed due to existing
The shortcomings of capacity is small, and cost is higher or regenerability is poor tends not to be applied to large-scale environmental improvement.
For slag as a kind of one of main smelting iron and steel solid waste, yield is huge.The annual slag in China according to statistics
Yield does not obtain efficient resource utilization in more than 7000t, wherein most slag, and the slag accumulated over the years has been occupied greatly
The soil of amount, but due to slag surface relative smooth, specific surface area is not high, so adsorption capacity is smaller.Therefore, one is worked out
The method that kind efficiently removes dyes pollutant using slag has great importance.
The content 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 for the treatment of effeciency height, processing effect
Fruit is good, treatment process is simple and convenient to operate, the method for removal dyes at low cost, will not causing secondary pollution.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of method for removing dyes, comprises the following steps：Modified steel scoria with waste water from dyestuff is mixed and is shaken
Absorption is swung, completes the processing to waste water from dyestuff；The modified steel scoria is by slag through the high temperature modified and modified system of salicylic acid solution
.
In the method for above-mentioned removal dyes, it is preferred that the preparation of the modified steel scoria comprises the following steps：It takes
Slag high-temperature process 4h~6h at 700 DEG C~800 DEG C, concussion is mixed with salicylic acid solution by the slag after high-temperature process
2h~4h is reacted, obtains modified steel scoria.
In the method for above-mentioned removal dyes, it is preferred that the salicylic acid solution is dissolved in methanol/the third by salicylic acid
It is made in ketone double solvents；The mass volume ratio of the salicylic acid and the methanol/acetone double solvents is 50g~60g: 1L.
In the method for above-mentioned removal dyes, it is preferred that methanol and acetone in the methanol/acetone double solvents
Volume ratio be 3: 7~7: 3.
In the method for above-mentioned removal dyes, it is preferred that CaO of the slag including 20wt%~50wt%,
The SiO of 7wt%~24wt%2, 3wt%~20wt% Fe2O3, 8wt%~30wt% FeO, 0.3wt%~8wt%
The Al of MgO, 0.1wt%~5wt%2O3, 0.1wt%~3wt% P2O5。
In the method for above-mentioned removal dyes, it is preferred that the quality of the modified steel scoria and the waste water from dyestuff
Volume ratio is 25g~30g: 1L.
In the method for above-mentioned removal dyes, it is preferred that dyestuff is methylene blue in the waste water from dyestuff；It is described
Initial concentration≤200mg/L of dyestuff in waste water from dyestuff.
In the method for above-mentioned removal dyes, it is preferred that the initial pH value of the waste water from dyestuff is 3~10.
In the method for above-mentioned removal dyes, it is preferred that the initial pH value of the waste water from dyestuff is 4~9.
In the method for above-mentioned removal dyes, it is preferred that the rotating speed of the vibration absorption for 160rpm~
200rpm；The time of the vibration absorption is 1h~2h.
In the method for the present invention, the slag includes converter slag, but is not limited only to this.
In the method for the present invention, the mass volume ratio of the slag after high-temperature process and the salicylic acid solution is
50g~60g: 1L, but it is not limited only to this.
Compared with prior art, the advantage of the invention is that：
1st, the present invention provides a kind of method for removing dyes, waste water from dyestuff is adsorbed using modified steel scoria
Processing, is up on 98% the removal rate of Wastewater Dyes, realizes the efficient removal to Wastewater Dyes.It is used in the present invention
The method of modified steel scoria removal dyes have cost is relatively low, treatment effeciency is high, high treating effect, treatment process are simple,
Easy to operate, investment cost and operating cost are low, will not cause the advantages that secondary pollution, while also achieve to solid waste steel
The recycling of slag recycles.
2nd, in the present invention, it is removed through alkaline components such as high temperature modified and the modified slag surface of salicylic acid solution CaO,
This effectively reduces the basicity of slag, it is therefore prevented that slag neutral and alkali ingredient Hydrolysis reaction system pH is solved because not changing
Property the alkaline components such as slag surface C aO continued hydrolysis in aqueous solution, pH value of solution is made to steeply rise (up to more than 12), so as to lead
Cause the problems such as solution ph is difficult to control in processing procedure.In addition, by carrying out high temperature modified and bigcatkin willow to slag in the present invention
Acid solution is modified so that modified slag surface can form more hollow structure, and which greatly improves the specific surfaces of slag
Product, provides more adsorption sites for the absorption of pollutant, effectively raises adsorption capacity of the slag to pollutant, so as to
Improve the treatment effeciency and treatment effect to methylene blue.
Description of the drawings
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, clear, complete description is carried out to the technical solution in the embodiment of the present invention.
Fig. 1 is unmodified converter slag (unmodified slag) in the embodiment of the present invention 1 and modified steel scoria in different time
Under to the Adsorption design sketch of methylene blue in waste.
Fig. 2 is unmodified converter slag (A) and the converter slag (B) after high temperature modified in the embodiment of the present invention 1
And by high temperature modified and the modified converter slag of salicylic acid (C) electronic scanner microscope figure.
Fig. 3 is modified for unmodified converter slag (A) in the embodiment of the present invention 1 and by high temperature modified and salicylic acid
The scanning electron microscope energy spectrum composition analysis figure of converter slag (B).
Fig. 4 is that the modified steel scoria of Different adding amount in the embodiment of the present invention 2 imitates the Adsorption of methylene blue in waste
Fruit is schemed.
Fig. 5 is that modified steel scoria at different temperatures imitates the Adsorption of methylene blue in waste in the embodiment of the present invention 3
Fruit is schemed.
Fig. 6 is modified steel scoria in the embodiment of the present invention 4 to the Adsorption design sketch of the methylene blue waste water of different pH.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
Raw material and instrument employed in following embodiment are commercially available, wherein slag used is converter slag, are purchased from river
Metallurgical slag (i.e. converter slag) is broken into of diameter 0.3mm or so by Bei Sheng Lingshou Counties mineral products processing factory after dry
Grain, for the processing of dye discoloration water body.The CaO that main component in metallurgical slag of the present invention is 46.95wt%,
The SiO of 10.63wt%2, the Fe of 9.65wt%2O3, the Al of the MgO of the FeO of 13.45wt%, 4.86wt%, 3.64wt%2O3,
The P of 1.85wt%2O5。
Embodiment 1
A kind of method of the removal dyes of present invention, comprises the following steps：
(1) 500g salicylic acids is taken to be dissolved in 10L methanol/acetones double solvents (volume ratio of methanol and acetone is 1: 1),
Obtain salicylic acid solution.
(2) by converter slag, high-temperature process 4h postcoolings are spare at 700 DEG C, take converter steels of the 600g after high-temperature process
Slag mixes concussion reaction 2h with the salicylic acid solution in step (1), and filtering is cleaned and dried with clear water, obtains modified steel scoria.
(3) methylene blue solution that 2 parts of volumes are 1L, initial concentration 200mg/L, initial pH are 5.4 is taken, is separately added into
Modified steel scoria in the unmodified converter slags of 10g, 10g steps (2), after mixing, under conditions of room temperature, rotating speed is 180rpm
Vibration absorption is carried out, completes the removal to methylene blue.
It is sampled respectively from reaction system after progress 0.5h, 1h, 2h, 3h and 4h are adsorbed in vibration, utilizes ultraviolet-visible light
Spectrophotometer detects the content of Methylene Blue in Solution, the result is shown in Figure 1.Fig. 1 is unmodified converter slag in the present embodiment
(unmodified slag) and modified steel scoria are under different time to the Adsorption design sketch of methylene blue in waste.As shown in Figure 1,
Modified steel scoria is to the eliminating rate of absorption of methylene blue apparently higher than unmodified converter slag.It can be seen that the present invention is through high temperature
The modified and modified obtained modified steel scoria of salicylic acid improves a lot to the absorption property of methylene blue.At the beginning of methylene blue
Beginning concentration is 200mg/L, and under conditions of additive amount 10g/L, vibration adsorption time are 2h, unmodified slag is to methylene blue
Adsorption capacity is 0.49mg/g, and at identical conditions, modified steel scoria reaches 8.41mg/g to the adsorption capacity of methylene blue.
Relatively unmodified slag, modified steel scoria of the present invention improve the adsorption capacity of methylene blue nearly 20 times.It in addition, can by Fig. 1
Know, modified steel scoria is very fast to the absorption of methylene blue, and after adsorption time is vibrated more than 1h, the removal rate of methylene blue becomes
In stabilization.As it can be seen that the Best Times of the method for the present invention processing methylene blue solution are 1h.
Specific surface area and pore volume measure are carried out by converter slag powder and by modified converter slag powder：
Table 1 is unmodified converter slag (A) and converter slag (B) and warp after high temperature modified in the present embodiment
Cross high temperature modified and the specific surface area of the modified converter slag of salicylic acid (C) and pore volume measured value.As shown in Table 1：Not
Modified smaller (the 4.36m of converter slag specific surface area2/ g), after high-temperature process, the specific surface area of converter slag rises to
7.53m2/ g, this may be since high-temperature process causes slag surface to form some crackles, pass through salicylic acid-methanol-acetone
After solution (salicylic acid solution i.e. in step (1)) processing, the specific surface area of converter slag further increases, and reaches 43.8m2/
g；The test result of table 1 also shows that similar variation also has occurred in pore volume simultaneously, this may be since salicylic acid is to converter steel
The alkaline components such as slag surface C aO are removed, and leave Fe2O3Ingredients are waited, form more hollow structure.
Table 1：Slag specific surface area and pore volume testing result table
| Sample | A | B | C |
| Specific surface area (m2/g) | 4.36 | 7.53 | 43.8 |
| Pore volume (cm3/g) | 0.013 | 0.022 | 0.092 |
Electron microscope scanning is carried out by converter slag powder and by modified converter slag powder：
Fig. 2 is unmodified converter slag (A) and converter slag (B) and warp after high temperature modified in the present embodiment
Cross the high temperature modified and modified converter slag of salicylic acid (C) electronic scanner microscope figure.As can be known from Fig. 2：It is unmodified
Converter slag surface relatively flat, but due to have passed through Mechanical Crushing, so there is some hollows；By high temperature and salicylic acid
Larger change has occurred in the configuration of surface of modified converter slag, and converter slag surface becomes uneven, forms very much
Concaveconvex structure, these variations add the contact area of converter slag and methylene blue, are conducive to suction-operated.
Electro microscope energy spectrum constituent analysis is scanned by converter slag powder and by modified converter slag powder：
Fig. 3 is for unmodified converter slag (A) in the present embodiment and by the high temperature modified and modified converter of salicylic acid
The scanning electron microscope energy spectrum composition analysis figure of slag (B).Scanning electron microscope energy spectrum composition analysis further demonstrate modification to steel
The CaO ingredients on slag surface are removed.As can be known from Fig. 3：For slag after modified, the ratio shared by Ca elements is apparent
Decline, the ratio shared by Fe elements substantially rises.
Embodiment 2
A kind of method of the removal dyes of present invention, comprises the following steps：
(1) 500g salicylic acids is taken to be dissolved in 10L methanol/acetones double solvents (volume ratio of methanol and acetone is 1: 1),
Obtain salicylic acid solution.
(2) by converter slag, high-temperature process 4h postcoolings are spare at 700 DEG C, take converter steels of the 600g after high-temperature process
Slag mixes concussion reaction 2h with the salicylic acid solution in step (1), and filtering is cleaned and dried with clear water, obtains modified steel scoria.
(3) methylene blue solution that 4 parts of volumes are 1L, initial concentration 200mg/L, initial pH are 5.4 is taken, is added respectively
Modified steel scoria in 10g, 15g, 20g, 25g, 30g, 35g step (2), after mixing, under conditions of room temperature, rotating speed is 180rpm
Vibration absorption is carried out, completes the removal to methylene blue.
It samples from reaction system after progress 1h is adsorbed in vibration, is detected using ultraviolet-visible spectrophotometer respectively
The content of Methylene Blue in Solution, the result is shown in Fig. 4.Fig. 4 is the modified steel scoria of Different adding amount in the present embodiment to the waste water Central Asia
The Adsorption design sketch of methyl blue.As shown in Figure 4, in the case where additive amount is 25g/L, modified steel scoria of the present invention is to initial
Concentration is that the removal rate of the methylene blue solution of 200mg/L reaches more than 98%.Continue the dosage of increase modified steel scoria, methylene
Blue removal rate variation is little, so, from the point of view of cost-effective, the method for the present invention handles the optimal of methylene blue solution
Additive amount is 25g/L.
Embodiment 3
A kind of method of the removal dyes of present invention, comprises the following steps：
(1) 500g salicylic acids is taken to be dissolved in 10L methanol/acetones double solvents (volume ratio of methanol and acetone is 1: 1),
Obtain salicylic acid solution.
(2) by converter slag, high-temperature process 4h postcoolings are spare at 700 DEG C, take converter steels of the 600g after high-temperature process
Slag mixes concussion reaction 2h with the salicylic acid solution in step (1), and filtering is cleaned and dried with clear water, obtains modified steel scoria.
(3) methylene blue solution that 5 parts of volumes are 1L, concentration 200mg/L, initial pH are 5.4 is taken, it is each to add in 25g steps
Suddenly the modified steel scoria in (2), after mixing, in rotating speed under conditions of 180rpm, in temperature be 20 DEG C, 25 DEG C, 30 DEG C, 35 DEG C,
Vibration absorption is carried out at 40 DEG C, completes the removal to methylene blue.
It samples from reaction system after progress 1h is adsorbed in vibration, is detected using ultraviolet-visible spectrophotometer respectively
The content of Methylene Blue in Solution, the result is shown in Fig. 5.Fig. 5 is modified steel scoria in the present embodiment at different temperatures to the waste water Central Asia
The Adsorption design sketch of methyl blue.As shown in Figure 5, as the temperature increases, modified steel scoria of the present invention removes methylene blue
It is interior when 1 is small equal to reach more than 98%, it is seen then that modified steel scoria of the present invention fits temperature except rate variation has little to no effect
Answering property is preferable.
Embodiment 4
A kind of method of the removal dyes of present invention, comprises the following steps：
(1) 500g salicylic acids is taken to be dissolved in 10L methanol/acetones double solvents (volume ratio of methanol and acetone is 1: 1),
Obtain salicylic acid solution.
(2) by converter slag, high-temperature process 4h postcoolings are spare at 700 DEG C, take converter steels of the 600g after high-temperature process
Slag mixes concussion reaction 2h with the salicylic acid solution in step (1), and filtering is cleaned and dried with clear water, obtains modified steel scoria.
(3) to take 9 parts of volumes be 1L, the methylene blue solution that initial concentration is 200mg/L, their initial pH is respectively
2.0th, 3.0,4.0,5.0,6.0,7.0,8.0,9.0,10.0, each modified steel scoria added in 25g steps (2), after mixing, normal
Temperature, rotating speed complete the removal to methylene blue to carry out vibration absorption under conditions of 180rpm.
It samples from reaction system after progress 1h is adsorbed in vibration, is detected using ultraviolet-visible spectrophotometer respectively
The content of Methylene Blue in Solution, the result is shown in Fig. 6.Fig. 6 is modified steel scoria in the present embodiment to the methylene blue waste water of different pH
Adsorption design sketch.It will be appreciated from fig. 6 that under the conditions of relatively low pH (pH=2 and pH=3), modified steel scoria is to methylene blue
With certain Adsorption effect, to methylene blue when more than 60%, pH being 3 to the removal rate of methylene blue when pH is 2
Removal rate is more than 80%.Under the conditions of higher pH (pH=10), modified steel scoria to the Adsorption effect of methylene blue slightly
Decline, but 90% is still higher than to the removal rate of methylene blue.This illustrates that the modified steel scoria of the present invention is applicable not only to acid Asia
Methyl blue solution is also applied for alkaline methylene base indigo plant solution.It can be seen that the method for the present invention to pH be 3~10 methylene blue
Waste water has preferable Adsorption effect, and has better Adsorption effect to the methylene blue waste water that pH is 4~9.
Therefore the method for the present invention is good to the removal effect of water body Methylene Blue, it can to the removal rate of methylene blue
Reach more than 98%.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention.Though
So the present invention is disclosed as above with preferred embodiment, however is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from the Spirit Essence of the present invention and technical solution, all using in the methods and techniques of the disclosure above
Appearance makes technical solution of the present invention many possible changes and modifications or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, technical spirit according to the invention is to made for any of the above embodiments any simple
Modification, equivalent substitution, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (10)
- A kind of 1. method for removing dyes, which is characterized in that comprise the following steps：Modified steel scoria and waste water from dyestuff are mixed Conjunction carries out vibration absorption, completes the processing to waste water from dyestuff；The modified steel scoria is by slag through high temperature modified and salicylic acid solution It is modified to be made.
- 2. the method for removal dyes according to claim 1, which is characterized in that the preparation bag of the modified steel scoria Include following steps：Slag high-temperature process 4h~6h at 700 DEG C~800 DEG C is taken, by the slag after high-temperature process and bigcatkin willow Acid solution mixes concussion reaction 2h~4h, obtains modified steel scoria.
- 3. the method for removal dyes according to claim 2, which is characterized in that the salicylic acid solution is by bigcatkin willow Acid, which is dissolved in methanol/acetone double solvents, to be made；The mass volume ratio of the salicylic acid and the methanol/acetone double solvents is 50g~60g: 1L.
- 4. the method for removal dyes according to claim 3, which is characterized in that the methanol/acetone is compound molten The volume ratio of methanol and acetone is 3: 7~7: 3 in agent.
- 5. it is according to claim 1 removal dyes method, which is characterized in that the slag include 20wt%~ The SiO of CaO, 7wt% of 50wt%~24wt%2, 3wt%~20wt% Fe2O3, 8wt%~30wt% FeO, The Al of MgO, 0.1wt% of 0.3wt%~8wt%~5wt%2O3, 0.1wt%~3wt% P2O5。
- 6. according to the method for removal dyes according to any one of claims 1 to 5, which is characterized in that the modification The mass volume ratio of slag and the waste water from dyestuff is 25g~30g: 1L.
- 7. according to the method for removal dyes according to any one of claims 1 to 5, which is characterized in that the dyestuff Wastewater Dyes are methylene blue；Initial concentration≤200mg/L of dyestuff in the waste water from dyestuff.
- 8. according to the method for removal dyes according to any one of claims 1 to 5, which is characterized in that the dyestuff The initial pH value of waste water is 3~10.
- 9. the method for removal dyes according to claim 8, which is characterized in that the initial pH of the waste water from dyestuff It is worth for 4~9.
- 10. according to the method for removal dyes according to any one of claims 1 to 5, which is characterized in that the vibration The rotating speed of absorption is 160rpm~200rpm；The time of the vibration absorption is 1h~2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085188.XA CN108117125B (en) | 2016-11-30 | 2016-11-30 | Method for removing dye in water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085188.XA CN108117125B (en) | 2016-11-30 | 2016-11-30 | Method for removing dye in water body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108117125A true CN108117125A (en) | 2018-06-05 |
| CN108117125B CN108117125B (en) | 2021-01-01 |
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| CN101353201A (en) * | 2007-07-24 | 2009-01-28 | 宝山钢铁股份有限公司 | Novel wastewater treatment method |
| CN101767842A (en) * | 2009-01-06 | 2010-07-07 | 同济大学 | Method of adsorption treatment of dye waste water by steel slag |
| CN102992445A (en) * | 2011-09-16 | 2013-03-27 | 苏州科技学院 | Method for treating organic pollutants through steel slag-oxalic acid photo Fenton |
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|---|---|---|---|---|
| CN101353201A (en) * | 2007-07-24 | 2009-01-28 | 宝山钢铁股份有限公司 | Novel wastewater treatment method |
| CN101767842A (en) * | 2009-01-06 | 2010-07-07 | 同济大学 | Method of adsorption treatment of dye waste water by steel slag |
| CN102992445A (en) * | 2011-09-16 | 2013-03-27 | 苏州科技学院 | Method for treating organic pollutants through steel slag-oxalic acid photo Fenton |
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| 任芝军主编: "《固体废弃物处理外置与资源化技术》", 31 May 2010 * |
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