CN105152258B - One kind load Fe2+The method that bromate in water removal is removed with β FeOOH red mud porcelain granule - Google Patents
One kind load Fe2+The method that bromate in water removal is removed with β FeOOH red mud porcelain granule Download PDFInfo
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- CN105152258B CN105152258B CN201510489791.3A CN201510489791A CN105152258B CN 105152258 B CN105152258 B CN 105152258B CN 201510489791 A CN201510489791 A CN 201510489791A CN 105152258 B CN105152258 B CN 105152258B
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Abstract
One kind load Fe2+The method that bromate in water removal is removed with β FeOOH red mud porcelain granule, it is related to a kind of method for removing bromate in water removal.The present invention is to solve existing method individually to add Fe2+Added amount of chemical is big when removing bromate in water removal with β FeOOH, and the problem of it is in powdered loose facile hydrolysis.Method：A certain amount of load Fe is added into pending bromate solution2+With β FeOOH red mud porcelain granule, at a certain temperature after vibration, solution after being handled, its bromate concentration is determined.The present invention is used to remove bromate in water removal.
Description
Technical field
The present invention relates to a kind of method for removing bromate in water removal.
Background technology
Bromate is 2B level potential carcinogens by international cancer research institution, and research shows, when people drink bromine throughout one's life
When acid group concentration is 5.0 μ g/L drinking water, its carcinogenic danger degree is 10-1.Currently for the removal technology of bromate, both at home and abroad
There are many researchs.Wherein ferrous sulfate reducing process empirical tests can be faster by BrO3 -It is reduced to Br-, but needed for course of reaction
Fe2+Concentration is higher, can cause iron content in water body exceeded after reaction.Therefore haydite surface, which can be supported on, overcomes its throwing amount
The problem of big.
β-FeOOH are a kind of environmentally friendly materials, be widely used as adsorbent make a return journey water removal in pollutant.In iron
In oxide, β-FeOOH have very strong adsorption capacity due to larger specific surface area.Produce its starting simultaneously
Raw material is cheap and easy to get, and therefore, the production cost of this adsorbent is low, has the extremely strong market competitiveness.In current research, β-
FeOOH is proved to ion exchange be present to bromate, has stronger adsorption capacity.But individually add β-FeOOH conducts
Adsorbent, its dosage is big, and it limits its application in powdered loose facile hydrolysis.
Red mud is caused discarded object in aluminum oxide production process, and it is cheap to be prepared into haydite cost using it.By Fe2+With
β-FeOOH, which are supported on its surface, can reduce the two dosage, while can change the physicochemical properties on red mud porcelain granule surface,
Improve its combined adsorption and entrapment to bromate in water.
The content of the invention
The present invention is to solve existing method individually to add Fe2+With β-FeOOH go water removal in bromate when added amount of chemical
Greatly, the problem of and it is in powdered loose facile hydrolysis.And provide a kind of load Fe2+Gone with β-FeOOH red mud porcelain granule in water removal
The method of bromate.
One kind load Fe2+The method that bromate in water removal is removed with β-FeOOH red mud porcelain granule is to carry out according to the following steps：
Load Fe is added into the water containing bromate under conditions of temperature is 15 DEG C~35 DEG C and vibrated2+With β-
FeOOH red mud porcelain granule is adsorbed, and adsorption time is 1h~4h, solution after being handled；In the water containing bromate
The concentration of bromate is the μ g/L of 600 μ g/L~1000；The pH scopes of the water containing bromate are 5.8~8.8；The load
Fe2+It is 1g with the quality of β-FeOOH red mud porcelain granule and the volume ratio of the water containing bromate:(8~12) mL.
Beneficial effects of the present invention：
1st, operating process of the present invention is simple, to the clearance of bromate up to 91%, can effectively remove bromate in water removal.It is main
Mechanism of action is wanted to be combined for suction-operated, ion exchange and reduction.Fe2+It is red by loading to β-FeOOH
Put into again in water on mud haydite and play its effect, reduce its dosage, the characteristics of it also avoid loose facile hydrolysis.Fe2+With
β-FeOOH load improves the specific surface area and absorption property of red mud porcelain granule, adds its reducing power, it is effectively gone
Bromate in water removal.
Embodiment
Embodiment one：A kind of load Fe of present embodiment2+Bromate in water removal is removed with β-FeOOH red mud porcelain granule
Method be to carry out according to the following steps：
Load Fe is added into the water containing bromate under conditions of temperature is 15 DEG C~35 DEG C and vibrated2+With β-
FeOOH red mud porcelain granule is adsorbed, and adsorption time is 1h~4h, solution after being handled；In the water containing bromate
The concentration of bromate is the μ g/L of 600 μ g/L~1000；The pH scopes of the water containing bromate are 5.8~8.8；The load
Fe2+It is 1g with the quality of β-FeOOH red mud porcelain granule and the volume ratio of the water containing bromate:(8~12) mL.
Embodiment two：Present embodiment is unlike embodiment one：The water containing bromate
The concentration of middle bromate is 800 μ g/L.It is other identical with embodiment one.
Embodiment three：Present embodiment is unlike embodiment one or two：It is described to contain bromate
Water pH be 6.8.It is other identical with embodiment one or two.
Embodiment four：Unlike one of present embodiment and embodiment one to three：It is 20 in temperature
DEG C and vibration under conditions of into the water containing bromate add load Fe2+Adsorbed with β-FeOOH red mud porcelain granule.It is other
It is identical with one of embodiment one to three.
Embodiment five：Unlike one of present embodiment and embodiment one to four：During the absorption
Between be 3h.It is other identical with one of embodiment one to four.
Embodiment six：Unlike one of present embodiment and embodiment one to five：The load Fe2+
It is 1g with the quality of β-FeOOH red mud porcelain granule and the volume ratio of the water containing bromate:10mL.Other and embodiment
One of one to five is identical.
Embodiment seven：A kind of load Fe of present embodiment2+Preparation method with β-FeOOH red mud porcelain granule be by
Following steps are carried out：
First, batch mixing：90 parts of red mud powders, 4 parts of bentonites and 6 parts of coal dusts are weighed in parts by weight, it is red by weigh 90 parts
Ball milling 2h~4h after mud powder, 4 parts of bentonites and 6 parts of coal dust mixing, obtains mixed powder；
2nd, the poly-vinyl alcohol solution that mass fraction is 5% is added in the mixed powder obtained to step 1, then in temperature
For stirring under 75 DEG C of water bath conditions to pureed, after taking out sieving, it is granulated by hand, obtains the ball-type that particle diameter is 1.0mm~1.2mm
Particle；The volume ratio for the poly-vinyl alcohol solution that the quality for the mixed powder that the step 1 obtains is 5% with mass fraction is 1g:
1mL；
3rd, the particle diameter for obtaining step 2 is that 1.0mm~1.2mm spherical particles are put into Muffle furnace, in heating rate
Under conditions of 2 DEG C/min, by the temperature of Muffle furnace by room temperature to 400 DEG C, protected under conditions of being then 400 DEG C in temperature
Warm 30min；Again with 2 DEG C/min heating rate, the temperature of Muffle furnace is warming up to 1030 DEG C by 400 DEG C, is then in temperature
50min is calcined under conditions of 1030 DEG C, obtains red mud porcelain granule, red mud porcelain granule is put into β-FeOOH solution, is 95 DEG C in temperature
Water bath condition under water-bath 3h~6h, then using deionized water rinsing 3~5 times after, be placed in temperature to do under conditions of 95 DEG C
Dry 24h, obtain loading β-FeOOH red mud porcelain granule；The quality of the red mud porcelain granule is 1 with the volume ratio of β-FeOOH solution:
20；
Ferric trichloride and urea are added in deionized water by the β-FeOOH solution to be prepared；Wherein trichlorine
The mass ratio for changing iron and urea is 1:1.3, the quality of ferric trichloride and the volume ratio of deionized water are 1:10；
The red mud porcelain granule for the load β-FeOOH that step 3 obtains is added to the FeSO that concentration is 0.4mol/L4·7H2O is molten
4h is vibrated in liquid under conditions of 20 DEG C, then places 24h at 110 DEG C, after deionized water rinsing 3~5 times, is placed in temperature
Spend to dry 24h under conditions of 60 DEG C, obtain a kind of load Fe2+With β-FeOOH red mud porcelain granule.
Pass through the effect of the following examples checking present invention：
Embodiment one：One kind load Fe2+Application with β-FeOOH red mud porcelain granule is will to load Fe2+With β-FeOOH's
Red mud porcelain granule is used to remove bromate in water removal, and its method is to carry out according to the following steps：Contain bromine to 10mL concentration for 800 μ g/L
1g loads Fe is added in the water of hydrochlorate2+With β-FeOOH red mud porcelain granule, after vibrating 4h at 25 DEG C, solution after being handled.
Fe is loaded described in embodiment one2+Preparation method with β-FeOOH red mud porcelain granule is to carry out according to the following steps：
First, batch mixing：90 parts of red mud powders, 4 parts of bentonites and 6 parts of coal dusts are weighed in parts by weight, it is red by weigh 90 parts
Ball milling 2h after mud powder, 4 parts of bentonites and 6 parts of coal dust mixing, obtains mixed powder；
2nd, the poly-vinyl alcohol solution that mass fraction is 5% is added in the mixed powder obtained to step 1, then in temperature
For stirring under 75 DEG C of water bath conditions to pureed, after taking out sieving, it is granulated by hand, obtains the ball-type that particle diameter is 1.0mm~1.2mm
Particle；The volume ratio for the poly-vinyl alcohol solution that the quality for the mixed powder that the step 1 obtains is 5% with mass fraction is 1g:
1mL；
3rd, the particle diameter for obtaining step 2 is that 1.0mm~1.2mm spherical particles are put into Muffle furnace, in heating rate
Under conditions of 2 DEG C/min, by the temperature of Muffle furnace by room temperature to 400 DEG C, protected under conditions of being then 400 DEG C in temperature
Warm 50min；Again with 2 DEG C/min heating rate, the temperature of Muffle furnace is warming up to 1030 DEG C by 400 DEG C, is then in temperature
40min is calcined under conditions of 1030 DEG C, obtains red mud porcelain granule, 0.5g red mud porcelain granules are put into 10mL β-FeOOH solution, in temperature
Spend water-bath 4h under the water bath condition for 95 DEG C, then using deionized water rinsing 3 times after, be placed in temperature to do under conditions of 95 DEG C
Dry 24h, obtain loading β-FeOOH red mud porcelain granule；β-FeOOH the solution is to add 1.0g ferric trichlorides and 1.3g urea
Enter what is be prepared into 10mL deionized waters；
4th, it is 0.4mol/L's the red mud porcelain granule for the load β-FeOOH that step 3 obtains to be added into 5mL concentration
FeSO4·7H24h is vibrated in O solution under conditions of 25 DEG C, then places 24h at 110 DEG C, using deionized water rinsing 3 times
Afterwards, it is placed under conditions of temperature is 100 DEG C and dries 24h, obtains loading Fe2+With β-FeOOH red mud porcelain granule.
The concentration of bromate is 69 μ g/L in solution after measure processing, and clearance is up to 91%.
Claims (5)
1. one kind load Fe2+The method that bromate in water removal is removed with β-FeOOH red mud porcelain granule, it is characterised in that load Fe2+With
It is to carry out according to the following steps that β-FeOOH red mud porcelain granule, which goes the method for bromate in water removal,：
Load Fe is added into the water containing bromate under conditions of temperature is 15 DEG C~35 DEG C and vibrated2+With β-FeOOH's
Red mud porcelain granule is reacted, and the reaction time is 1h~4h, solution after being handled；Bromate in the water containing bromate
Concentration is the μ g/L of 600 μ g/L~1000；The load Fe2+Quality with β-FeOOH red mud porcelain granule and the water containing bromate
Volume ratio be 1g:(8~12) mL；The pH of the water containing bromate is 6.8；Through loading Fe2+Made pottery with β-FeOOH red mud
The clearance of bromate reaches 91% after grain processing.
A kind of 2. load Fe according to claim 12+The method that bromate in water removal is removed with β-FeOOH red mud porcelain granule,
It is characterized in that the concentration of bromate is 800 μ g/L in the water containing bromate.
A kind of 3. load Fe according to claim 12+The method that bromate in water removal is removed with β-FeOOH red mud porcelain granule,
It is characterized in that load Fe is added into the water containing bromate under conditions of temperature is 20 DEG C and vibrated2+With β-FeOOH's
Red mud porcelain granule is reacted.
A kind of 4. load Fe according to claim 12+The method that bromate in water removal is removed with β-FeOOH red mud porcelain granule,
It is characterized in that the reaction time is 3h.
A kind of 5. load Fe according to claim 12+The method that bromate in water removal is removed with β-FeOOH red mud porcelain granule,
It is characterized in that the load Fe2+It is 1g with the quality of β-FeOOH red mud porcelain granule and the volume ratio of the water containing bromate:
10mL。
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| CN106732374A (en) * | 2017-01-18 | 2017-05-31 | 湖南大学 | The preparation and application of hydro-thermal charcoal/attapulgite/β FeOOH compound adsorbents |
| CN110579449A (en) * | 2019-10-14 | 2019-12-17 | 广西民族大学 | Method and reagent for detecting bromate in water |
| CN110567901A (en) * | 2019-10-14 | 2019-12-13 | 广西民族大学 | detection method and detection reagent for hydrogen peroxide in food |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103232125A (en) * | 2013-05-13 | 2013-08-07 | 山东大学 | Method for removing bromate through ordered mesoporous carbon loaded nanoscale zero-valent iron material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103232125A (en) * | 2013-05-13 | 2013-08-07 | 山东大学 | Method for removing bromate through ordered mesoporous carbon loaded nanoscale zero-valent iron material |
Non-Patent Citations (2)
| Title |
|---|
| 活性炭负载亚铁离子去除水中溴酸盐的研究;唐敏康等;《水处理技术》;20150531;第41卷(第5期);第58-62页 * |
| 石英砂负载β-FeOOH吸附去除饮用水中痕量溴酸盐的研究;石隽隽;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑（月刊）》;20130215;第11、22、24页 * |
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Effective date of registration: 20201231 Address after: B14, student science and technology entrepreneurship Park, 1 / F, building 4, area C, 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province Patentee after: Harbin Xuebo Environmental Protection Technology Co.,Ltd. Address before: 150080 No. 74, Xuefu Road, Nangang District, Heilongjiang, Harbin Patentee before: Heilongjiang University |
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