CN106914220A - A kind of modified turf fluorine removal medicament and preparation method thereof - Google Patents
A kind of modified turf fluorine removal medicament and preparation method thereof Download PDFInfo
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- CN106914220A CN106914220A CN201710228770.5A CN201710228770A CN106914220A CN 106914220 A CN106914220 A CN 106914220A CN 201710228770 A CN201710228770 A CN 201710228770A CN 106914220 A CN106914220 A CN 106914220A
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- fluorine removal
- natural peat
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- removal medicament
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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
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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
- B01J20/0203—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
- B01J20/0207—Compounds of Sc, Y or Lanthanides
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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
- B01J20/0203—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
- B01J20/0274—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 characterised by the type of anion
- B01J20/0296—Nitrates of compounds other than those provided for in B01J20/04
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28011—Other properties, e.g. density, crush strength
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
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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
-
- 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
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention discloses a kind of modified turf fluorine removal medicament, belongs to water-treatment technology field, and medicament is obtained by natural peat carried metal lanthanum, and its preparation method is comprised the following steps：1）It is standby after natural peat is carried out into sieving, cleaning, drying；2）By step 1）Natural peat after drying adds la (NO3)3After being mixed in solution, bakee, cool down, clean, dry, obtain final product；The natural peat is 1 ︰ with the mass ratio of lanthanoid metal（1.3~1.95）.Fluorine removal medicament of the invention, specific surface area is big, strong to fluorine selection absorbability, and natural peat is modified through lanthanum, the loose structure of the natural peat load space larger for lanthanum is provided, enhances the service life of lanthanum, and with good mechanical strength, defluorination effect is good, low cost, and manufacture craft is simple.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of modified turf fluorine removal medicament and preparation method thereof.
Background technology
Fluorine is biological bone and the essential trace element of tooth development, and the mankind take in Trace Element Fluorine in right amount with animal
It is healthy, but intake is excessive, then more serious injury, such as den tal fluorosis, fluorosis of bone can be caused to it.Therefore, for strong
From the aspect of health,《Standards for drinking water quality》（GB5749-2006）Middle regulation：" content of fluoride must not exceed in water
1mg/L ", and various regions water source is different, to have height to have low for Oil repellent in the water source per ground, and the water source higher to Oil repellent needs fluorine removal,
So that its Oil repellent is reduced in safe range.
At present, defluorination method mainly include coagulant sedimentation, absorption method, electrocoagulation, electroosmose process, hyperfiltration and from
Sub- exchange process etc., but coagulant sedimentation to easily cause secondary pollution, waste residue yield big；Conventional adsorbent used in absorption method is removed
Fluorine is limited in one's ability；The defluorination methods such as electrocoagulation, electroosmose process, hyperfiltration, ion-exchange, although defluorination effect is good, but
Relatively costly, complex process.Therefore material is found to be particularly important.
The content of the invention
Present invention aim at providing a kind of low cost, fluoride removing rate modified turf fluorine removal medicament high, while providing its phase
The preparation method answered is another goal of the invention of the invention.
Based on above-mentioned purpose, the present invention takes following technical scheme：
A kind of modified turf fluorine removal medicament, the medicament is obtained by natural peat carried metal lanthanum.
The preparation method of modified turf fluorine removal medicament, comprises the following steps：
1）It is standby after natural peat is carried out into sieving, cleaning, drying；
2）By step 1）Natural peat after drying adds la (NO3)3After being mixed in solution, bakee, cool down, clean, dry, i.e.,
；The natural peat is 1 ︰ with the mass ratio of lanthanoid metal（1.3~1.95）.
Step 2）Middle stoving temperature is 280 ~ 320 DEG C, and the baking time is 2 ~ 2.5h；Step 2）Middle drying temperature be 100 ~
110 DEG C, drying time is 2 ~ 3h.
Step 2）Middle natural peat and la (NO3)3Solution is mixed under oscillating condition, and vibration temperature is 20 ~ 25 DEG C, vibration
Rotating speed is 170rpm, duration of oscillation is 22 ~ 28h.
Step 1）The particle diameter of the natural peat after middle sieving is 10 ~ 20 mesh, and drying temperature is 100 ~ 110 DEG C, drying time
It is 2 ~ 3h.
Step 1）With step 2）During middle cleaning, the cleaning agent for using is high purity water.
Compared with prior art, the invention has the advantages that：
Fluorine removal medicament of the invention, specific surface area is big, strong to fluorine selection absorbability, and natural peat is modified through lanthanum, natural peat
The loose structure load space larger for lanthanum is provided, enhance the service life of lanthanum, and with good mechanical strength, fluorine removal
Effect is good, low cost, and manufacture craft is simple.
Specific embodiment
Embodiment 1
A kind of modified turf fluorine removal medicament, the medicament is obtained by natural peat carried metal lanthanum.
The preparation method of modified turf fluorine removal medicament, comprises the following steps：
1）Natural peat is carried out into sieving, it is standby after being cleaned with high purity water after sieving, drying；The particle diameter of the peat after sieving is
10 ~ 20 mesh, drying temperature is 100 DEG C, drying time is 3h；
2）By step 1）Natural peat after drying adds la (NO3)3In solution, in being mixed under oscillating condition, vibration temperature is
20 DEG C, vibration rotating speed be 170rpm, duration of oscillation be 28h, then bakee, be cooled to room temperature, use high purity water clean, drying
Afterwards, obtain final product；Natural peat is 1 ︰ 1.3 with the mass ratio of lanthanoid metal；Stoving temperature is 280 DEG C, and the baking time is 2.5h；Drying temperature
It is 100 DEG C to spend, and drying time is 3h.
Embodiment 2
A kind of modified turf fluorine removal medicament, the medicament is obtained by natural peat carried metal lanthanum.
The preparation method of modified turf fluorine removal medicament, comprises the following steps：
1）Natural peat is carried out into sieving, it is standby after being cleaned with high purity water after sieving, drying；The particle diameter of the peat after sieving is
10 ~ 20 mesh, drying temperature is 110 DEG C, drying time is 2h；
2）By step 1）Natural peat after drying adds la (NO3)3In solution, in being mixed under oscillating condition, vibration temperature is
25 DEG C, vibration rotating speed be 170rpm, duration of oscillation be 22h, then bakee, be cooled to room temperature, use high purity water clean, drying
Afterwards, obtain final product；Natural peat is 1 ︰ 1.95 with the mass ratio of lanthanoid metal；Stoving temperature is 320 DEG C, and the baking time is 2h；Drying temperature
It is 110 DEG C to spend, and drying time is 2h.
The defluorination effect of embodiment 3 is tested
The detection method of content of fluoride ion uses ion back-and-forth method（With reference to GB7482-87）, electricity is drawn on semilogarithmic paper
Place value and fluorinion concentration logarithm（E-(mg/L)）Calibration curve.
Experiment is divided into control group and test group, it is 1,2,3,4,5 that every group takes 5 conical flask number consecutivelies, to every group
In numbering 1-5 conical flask in be sequentially added into 50ml concentration for 0.25mg/L, 0.5mg/L, 1.0mg/L, 5mg/L,
The NaF solution of 10mg/L, each numbering is separately added into 0.25g natural peats in control group, and each numbering adds respectively in test group
Enter the fluorine removal medicament sample of the 0.25g embodiment of the present invention 1, every group at 25 DEG C, with 170rpm speed oscillation 1h, then each
Numbering water sample uses 0.45 μm of membrane filtration, pipettes water sample 20ml, adds 5ml total ionic strengths regulation cushioning liquid（Its formula
See ion selective electrode method（Fluorine removal）GB7482-87）, every group of potential value E of each numbering is measured, according to standard curve, ask right
Answer F-Content, draw each numbering fluorine ion clearance, the numbering of control group be the fluorine ion of 1-5 clearance distinguish
76.5%, 64.54%, 55.56%, 48.28%, 42.7% is reached, adsorption capacity reaches 0.854mg/g；The numbering of test group is 1-5
The clearance of fluorine ion respectively reach 96.5%, 90.41%, 86.82%, 84.26%, 82.43%, adsorption capacity reaches
1.649mg/g。
It follows that fluorine removal medicament of the invention is in fluorine removal, fluoride removing rate has bright with adsorption capacity compared with control group,
Aobvious raising, this explanation, natural peat is modified through lanthanum, specific surface area increase, selection absorbability enhancing, and medicine of the invention
Agent raw material are cheap and easily-available, preparation process is simple.
Claims (6)
1. a kind of modified turf fluorine removal medicament, it is characterised in that the medicament is obtained by natural peat carried metal lanthanum.
2. the preparation method of the modified turf fluorine removal medicament described in claim 1, it is characterised in that comprise the following steps：
1）It is standby after natural peat is carried out into sieving, cleaning, drying；
2）By step 1）Natural peat after drying adds la (NO3)3After being mixed in solution, bakee, cool down, clean, dry, i.e.,
；The natural peat is 1 ︰ with the mass ratio of lanthanoid metal（1.3~1.95）.
3. the preparation method of modified turf fluorine removal medicament according to claim 2, it is characterised in that step 2）It is middle to bakee temperature
It is 280 ~ 320 DEG C to spend, and the baking time is 2 ~ 2.5h；Step 2）Middle drying temperature is 100 ~ 110 DEG C, and drying time is 2 ~ 3h.
4. the preparation method of modified turf fluorine removal medicament according to claim 2, it is characterised in that step 2）In natural mud
Charcoal and la (NO3)3Solution is mixed under oscillating condition, and vibration temperature is 20 ~ 25 DEG C, vibration rotating speed is 170rpm, duration of oscillation is
22~28h。
5. the preparation method of modified turf fluorine removal medicament according to claim 2, it is characterised in that step 1）After middle sieving
Natural peat particle diameter be 10 ~ 20 mesh, drying temperature be 100 ~ 110 DEG C, drying time be 2 ~ 3h.
6. the preparation method of modified turf fluorine removal medicament according to claim 2, it is characterised in that step 1）With step 2）
During middle cleaning, the cleaning agent for using is high purity water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228770.5A CN106914220A (en) | 2017-04-10 | 2017-04-10 | A kind of modified turf fluorine removal medicament and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710228770.5A CN106914220A (en) | 2017-04-10 | 2017-04-10 | A kind of modified turf fluorine removal medicament and preparation method thereof |
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| CN106914220A true CN106914220A (en) | 2017-07-04 |
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| CN201710228770.5A Pending CN106914220A (en) | 2017-04-10 | 2017-04-10 | A kind of modified turf fluorine removal medicament and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002506A (en) * | 2017-12-30 | 2018-05-08 | 河南永泽环境科技有限公司 | A kind of compound demanganization filtrate and preparation method thereof |
| CN113173572A (en) * | 2021-05-19 | 2021-07-27 | 西南交通大学 | Phosphorus-fluorine synergistic adsorption lanthanum-loaded biochar and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002506A (en) * | 2017-12-30 | 2018-05-08 | 河南永泽环境科技有限公司 | A kind of compound demanganization filtrate and preparation method thereof |
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| CN113173572A (en) * | 2021-05-19 | 2021-07-27 | 西南交通大学 | Phosphorus-fluorine synergistic adsorption lanthanum-loaded biochar and preparation method thereof |
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