CN105858775B - A method of utilizing cobalt in iron aluminium mud efficient absorption water body - Google Patents
A method of utilizing cobalt in iron aluminium mud efficient absorption water body Download PDFInfo
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- CN105858775B CN105858775B CN201610199517.7A CN201610199517A CN105858775B CN 105858775 B CN105858775 B CN 105858775B CN 201610199517 A CN201610199517 A CN 201610199517A CN 105858775 B CN105858775 B CN 105858775B
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- cobalt
- iron aluminium
- aluminium mud
- water body
- mud
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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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of methods using cobalt in iron aluminium mud efficient absorption water body, belong to water-treatment technology field.It is characterized in that the iron aluminium mud after desiccation, broken, grinding and mixing to be added in a certain concentration cobalt liquor with certain solid-to-liquid ratio, investigate it and change with time to the adsorbance of cobalt, and determine time of equilibrium adsorption.Meanwhile iron aluminium mud is further investigated to the adsorbance and removal rate and absorption mechanism of concentration cobalt different in water body, iron aluminium mud is investigated to the adsorption capacity of cobalt with this.It is simple using the method for cobalt in iron aluminium mud adsorbed water body, low in cost and adsorption effect is preferable, while solving the problems, such as cobalt pollution in the processing disposition and water body of iron aluminium mud.
Description
Technical field
The invention belongs to water-treatment technology fields, and in particular to a kind of side using cobalt in iron aluminium mud efficient absorption water body
Method.
Background technique
Cobalt is that vitamin B is synthesized in humans and animals body12With the important composition ingredient of some enzymes, to the metabolic function tune of human body
Section plays an important role.According to world health organisation recommendations, adult daily cobalt intake is 2 μ g.Cobalt is in field of scientific study
It is widely used, is mainly used in the industries such as nuclear reactor, industry, medical treatment, food, a large amount of cobalt is present in nuclear reactor discharge
In waste water, it is very big that harm is caused to the mankind and Environmental Health.60Co (II) half-life period is 5.271a, and emitted energy is very high
Gamma-rays belongs to high toxicity radionuclide, such as a large amount of to take in or by a large amount of external exposures, lead to alopecia, can seriously damage
Cell tissue in blood of human body, causes oligoleukocythemia, causes disease in the blood system, such as regenerates sexual dysfunction anemia, seriously
Meeting make one to suffer from leukaemia (leukemia), or even it is dead.Cobalt is similar to the hazard mechanism of animals and plants and the harm of the mankind, mainly all
It is the activity by inhibiting cellular enzymes, to influence normal physiological activity.According to China " copper, cobalt, nickel industrial wastewater discharge mark
Quasi- (GB25467-2010) ", the cobalt concentration discharged in waste water must not be higher than 1 mg/L.
Based on cobalt pollution status and its toxic hazard, many researchers start to be dedicated to effectively removing grinding for cobalt method in water
Study carefully.Currently, generally using chemical precipitation method, absorption method, ion-exchange, solvent extraction, hyperfiltration etc..(the Shens such as Zhu Zhu
Please number CN201210519634.9) disclose a kind of method of cobalt in removal the cobalt-containing wastewater, (application number such as yellow beautiful duckweed
CN201210153753.7 a kind of side for utilizing microorganism electrolysis cell " single step " recycling simple substance cobalt from cobalt acid lithium) is disclosed
Method, Wang Yuhua etc. (application number CN201210107829.2) disclose a kind of method for recycling cobalt in cobalt-rich matte leaching liquid, king
(application number CN200810238844.4) such as stalwart Ting discloses a kind of method of Call Provision from cobalt sulfate solution, Hang Zongliang etc.
(application number CN201310311644.8) discloses a kind of for removing the preparation side of the filter medium of waterborne radioactivity cobalt, caesium
Method, ten thousand Yushan etc. (application number CN201210532242.6) disclose a kind of method for removing cobalt in sewage.With the above processing side
Method is compared, and absorption method treating capacity is big, high-efficient, at low cost and be easy to apply, therefore, prepare the cobalt adsorbent material of high efficiency low cost at
For the research hotspot for alleviating cobalt pollution.(application number CN201210322140.1) such as Lei Chunsheng discloses a kind of removal natural water body
The composite adsorbing material and preparation method thereof of middle cobalt ions, Pan Yang (application number CN201310352951.0) disclose a kind of removal
The method of silver-colored cobalt strontium ion in radioactive wastewater, Wang Jianlong etc. (application number CN201310488509.0), which is disclosed, a kind of utilizes stone
The method of black alkene load nano zero-valence iron composite material removal radioactive cobalt, Zhang Zhi east etc. (application number CN201310099327.4)
Disclose a kind of deinococcus radiodurans and its application in absorption cobalt ions biological treatment.
The investigation of materials of the removal cobalt of Cheap highly effective is increasingly taken seriously it can be seen from the above patent.Iron aluminium mud is
Safe by-product during Water purification, is mainly made of the impurity in iron aluminium flocculating agent and active carbon and raw water.Due to iron
Iron aluminium content is higher in aluminium mud, mainly exists with unformed shape, and has biggish specific surface area, there is very strong metal adsorption energy
Power.Therefore, it can use iron aluminium mud as the cobalt in adsorbent adsorbed water body, realize the mesh of " waste utilization and the treatment of wastes with processes of wastes against one another "
's.
Summary of the invention
The invention discloses a kind of using iron aluminium mud as a kind of method of cobalt in new adsorbent efficient absorption water body, thus
Reference is provided to solve the problems such as cobalt pollution and iron aluminium mud resource utilize in water body.
Specific technical solution using cobalt in iron aluminium mud adsorbed water body is as follows:
1) iron aluminium mud through desiccation, broken, grinding and is mixed；
2) iron aluminium mud is added in the water body containing cobalt with certain solid-to-liquid ratio, shaken at room temperature；
3) mixed liquor is centrifuged, takes the concentration of supernatant measurement cobalt, according to supernatant after initial concentration in cobalt water body and absorption
The difference of liquid concentration calculates iron aluminium mud to the adsorbance of cobalt.
The advantages of the present invention are embodied in:
1) adsorbent material of the invention is iron aluminium mud, and it is excellent to have that distribution is wide, yield is big, nonhazardous, processing cost are low etc.
Point；
2) iron aluminium mud has stronger adsorption capacity to cobalt, and water treatment efficiency is high；
3) the processing disposition of iron aluminium mud and cobalt pollution are solved the problems, such as simultaneously, is advantageously implemented the target of " treatment of wastes with processes of wastes against one another ",
Combined-circulation expanding economy requirement.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted to improper restriction of the invention.In the accompanying drawings:
Fig. 1 is iron aluminium mud in the embodiment of the present invention to the curve of adsorption kinetics of cobalt；
Fig. 2 is iron aluminium mud in the embodiment of the present invention to the adsorbance and removal rate of cobalt；
Fig. 3 is the infrared spectrum analysis in the embodiment of the present invention before and after iron aluminium mud adsorption of cobalt.
Specific embodiment
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.
Embodiment 1:
Using Beijing's water supply plant iron aluminium mud as raw material.Iron aluminium mud crosses 80 meshes through desiccation, broken, grinding, mixing.
Embodiment 2:
0.5 g iron aluminium mud sample product accurately are weighed in centrifuge tube, and certain density 30 mL of cobalt liquor is added, after shaking up
It is placed in the constant-temperature table that revolving speed is 150 r/min and shakes, respectively in 0.5 h, 2 h, 4 h, 6 h, 12 h, 24 h, 48 h, 72
H and 96 h takes out sample, and mixed solution utilizes inductively coupled plasma atomic emission after 8000 r/min are centrifuged 10 min
Instrument measures cobalt concentration in supernatant.According to the difference of initial soln and centrifuged supernatant cobalt concentration, suction of the iron aluminium mud to cobalt is calculated
Attached amount makees tapping aluminium mud to the adsorbance versus time curve (Fig. 1) of cobalt.Determine that time of equilibrium adsorption is by Fig. 1 curve
30 h。
Embodiment 3:
0.5 g iron aluminium mud sample product accurately are weighed in a series of centrifuge tubes, are separately added into the difference that 30 mL and pH are 6.0
Concentration cobalt liquor (0-800 mg/L).Sample, which shakes up in the constant-temperature table that rear revolving speed is 150 r/min, to be shaken, according to dynamics reality
Test determining time of equilibrium adsorption, absorption takes out sample after reaching balance, mixed solution after 8000 r/min are centrifuged 10 min,
Utilize cobalt concentration in inductive coupling plasma emission spectrograph measurement supernatant.According to initial soln and centrifuged supernatant cobalt
The difference of concentration calculates iron aluminium mud to the adsorbance and removal rate of cobalt, makees tapping aluminium mud to the adsorbance and removal rate of cobalt with initial
The change curve of cobalt concentration.In case study on implementation of the present invention, iron aluminium mud in solution in 0-800 mg/L concentration range cobalt absorption
It measures up to 16.91 mg/g, removal rate maximum is up to 99%.As it can be seen that iron aluminium mud has stronger adsorption capacity (figure to the cobalt in water
2).The infrared spectrum analysis of absorption front and back shows that the cobalt adsorbed by iron aluminium mud mainly has (Fig. 3) in the form of Fe (Al)-O-Co.
Claims (3)
1. a kind of method using cobalt in iron aluminium mud efficient absorption water body, it is characterised in that: through desiccation, broken, grinding, mix
Afterwards, the iron aluminium mud for crossing 80 meshes has strong adsorption capacity to the cobalt in water body, to cobalt in 0-800mg/L concentration range in solution
Adsorbance is up to 16.91mg/g, and removal rate maximum is up to 99%.
2. the method for cobalt in iron aluminium mud efficient absorption water body according to claim 1, it is characterised in that iron aluminium mud is with 1:60
(iron aluminium shale amount (g): liquor capacity (mL)) solid-to-liquid ratio is added in the water body containing cobalt.
3. the method for cobalt in iron aluminium mud efficient absorption water body according to claim 1, it is characterised in that iron aluminium mud is to water body
It is 30h the time required to middle cobalt adsorption equilibrium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610199517.7A CN105858775B (en) | 2016-04-04 | 2016-04-04 | A method of utilizing cobalt in iron aluminium mud efficient absorption water body |
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| CN201610199517.7A CN105858775B (en) | 2016-04-04 | 2016-04-04 | A method of utilizing cobalt in iron aluminium mud efficient absorption water body |
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| CN105858775A CN105858775A (en) | 2016-08-17 |
| CN105858775B true CN105858775B (en) | 2019-02-22 |
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| CN107899555B (en) * | 2017-11-30 | 2020-05-01 | 安徽工业大学 | Preparation and application of composite adsorbing material for removing heavy metals Mo (VI) in water body |
| CN107930689A (en) * | 2017-11-30 | 2018-04-20 | 安徽工业大学 | A kind of preparation method for the water body sexavalence molybdate adsorbent that iron aluminium mud is discarded based on water supply plant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872835A (en) * | 2012-08-28 | 2013-01-16 | 常州大学 | Composite adsorbing material for removing cobalt irons in natural water and preparation method thereof |
| CN102964007A (en) * | 2012-12-11 | 2013-03-13 | 常州大学 | Method for removing cobalt in sewage |
| KR20150011302A (en) * | 2013-07-22 | 2015-01-30 | 광주과학기술원 | Heavy metal absorbent, method for absorbing heavy metal using the same, manufacturing method and recyling methood thereof |
-
2016
- 2016-04-04 CN CN201610199517.7A patent/CN105858775B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872835A (en) * | 2012-08-28 | 2013-01-16 | 常州大学 | Composite adsorbing material for removing cobalt irons in natural water and preparation method thereof |
| CN102964007A (en) * | 2012-12-11 | 2013-03-13 | 常州大学 | Method for removing cobalt in sewage |
| KR20150011302A (en) * | 2013-07-22 | 2015-01-30 | 광주과학기술원 | Heavy metal absorbent, method for absorbing heavy metal using the same, manufacturing method and recyling methood thereof |
Non-Patent Citations (2)
| Title |
|---|
| 含钴废水的粉煤灰处理效果初报;李云东等;《中国农学通报》;200708;第23卷(第8期);458-460 |
| 给水厂废弃铁铝泥对镉的吸附特征及影响因素;焦健等;《环境科学学报》;201603;第36卷(第3期);842-848 |
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