CN109231340A - A kind of preparation method of lightweight diatomite material for water treatment - Google Patents
A kind of preparation method of lightweight diatomite material for water treatment Download PDFInfo
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- CN109231340A CN109231340A CN201811227306.5A CN201811227306A CN109231340A CN 109231340 A CN109231340 A CN 109231340A CN 201811227306 A CN201811227306 A CN 201811227306A CN 109231340 A CN109231340 A CN 109231340A
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- diatomite
- water treatment
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000000463 material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 14
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- 238000001354 calcination Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 29
- 239000007787 solid Substances 0.000 claims description 20
- 239000011148 porous material Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 229960001484 edetic acid Drugs 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000004246 zinc acetate Substances 0.000 claims description 5
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 239000005909 Kieselgur Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005286 illumination Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 150000002505 iron Chemical class 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- WXLFIFHRGFOVCD-UHFFFAOYSA-L azophloxine Chemical compound [Na+].[Na+].OC1=C2C(NC(=O)C)=CC(S([O-])(=O)=O)=CC2=CC(S([O-])(=O)=O)=C1N=NC1=CC=CC=C1 WXLFIFHRGFOVCD-UHFFFAOYSA-L 0.000 description 8
- 235000012739 red 2G Nutrition 0.000 description 8
- 230000004913 activation Effects 0.000 description 5
- 238000005253 cladding Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 238000004042 decolorization Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
Abstract
A kind of preparation method of lightweight diatomite material for water treatment, belongs to technical field of water treatment, including following processing steps: with hydrochloric acid solution to diatomite processing, obtaining activated diatomaceous earth；Activated diatomaceous earth is kept the temperature in the organic solvent containing zinc, obtains to surface and covers the diatomite of organic zinc；Then the activated diatomaceous earth of obtained coating organic zinc is mixed with iron salt solutions, through hydro-thermal reaction, drying, calcining, finally obtains lightweight diatomite material for water treatment.There is lighter density with lightweight diatomite material for water treatment prepared by this method, can quick adsorption organic pollutant, while there is the activity of decomposing organic pollutant under light illumination, have broad application prospects in water treatment field.
Description
Technical field
The invention belongs to technical field of water treatment, and in particular to a kind of preparation method of lightweight diatomite material for water treatment.
Background technique
With the aggravation of water pollution, the organic pollutant in water has to be purified using certain method, to reach
The purpose of environment and human health is not endangered.Material for water treatment is essential one kind material in sewage purification process, usually
Material for water treatment can by suction type by water organic pollutant remove.In order to reach better removal effect, need
It is sufficiently mixed material for water treatment with water.Light material can more play a role, because with the comparable lightweight water process of water density
Material is easy to be sufficiently mixed under mild agitation with water, promotes the diffusion and the rate of adsorption of pollutant.Lightweight diatomite is exactly
Material a kind of in this way.
The biological silicalite that diatomite is made of the siliceous remains of diatom and other microorganisms have a large amount of, orderly
The micropore of arrangement, to make diatomite that there is very big specific surface area, meanwhile, diatomite chemical stability is high, except being dissolved in hydrogen fluorine
It is sour outer, any strong acid is not dissolved in, alkali is soluble in, it is without secondary pollution.Nevertheless, natural diatomaceous earth to the removal rate of phosphorus still not
Be it is very high, cause mineral resources that cannot efficiently utilize, can not meet demand, therefore need to centainly be handled diatomite, make it
Achieve the effect that preferably to remove water pollutant.
Summary of the invention
In view of the problems of the existing technology, the present invention is intended to provide a kind of preparation side of lightweight diatomite material for water treatment
Method can be used for organic pollutant present in purified water；The water-purifying material can adsorb the organic matter in water and under light illumination
It is allowed to degrade, is suitable for various water pollution field of purification.
A kind of preparation method of lightweight diatomite material for water treatment, including following preparation step.
(1) preparation of activated diatomaceous earth.
1. the 0.6mol/L hydrochloric acid solution of 500mL is mixed with 35g diatomite, 90 DEG C are heated the mixture to, it is warm herein
Degree heat preservation 5h, then cools down, filters, rinsed with deionized water to filtrate pH=7, obtain solids A.
2., then in 800 DEG C of calcining 2h, being cooled to room temperature by solids A in 220 DEG C of dry 18h, activation diatom is obtained
Soil.
(2) organic zinc is coated.
1. 5 ~ 10g ethylenediamine tetra-acetic acid, 8 ~ 11g zinc acetate, 3 ~ 6g emulsifier op-10 are added in 500mL dehydrated alcohol,
Stirring forms solution A.
2. solution A and activated diatomaceous earth are mixed, 60 DEG C are heated the mixture to, keeps the temperature 120min at this temperature, is obtained
To mixture A.
3. mixture A is evaporated to volume in 80 DEG C of water-baths no longer to reduce, mixture B is obtained.
(3) preparation of lightweight diatomite material for water treatment.
1. mixture B is mixed with the 0.08mol/L liquor ferri trichloridi of 300mL, stainless steel hydrothermal reaction kettle is moved into,
180 ~ 190 DEG C of reaction 30h, then cooling, filtering obtains solids B.
2., then in 650 ~ 780 DEG C of calcining 3h, being cooled to room temperature by solids B in 220 DEG C of dry 18h, obtaining lightweight
Diatomite material for water treatment.
Wherein, 8 ~ 15mm of particle size of diatomite used, heap density 0.5g/cm3, specific surface area 60m2/ g, pore volume
0.75cm3/g。
The lightweight diatomite material for water treatment of preparation has following technical characteristic: the thickness of diatomite surface cladding ferrous acid zinc layers
Degree is 0.9 ~ 1.2 μm, 120 ~ 170m of specific surface area2/ g, 0.6 ~ 0.8cm of pore volume3/ g, 0.6 ~ 0.7g/cm of heap density3。
A kind of preparation method of lightweight diatomite material for water treatment of the invention has following excellent compared with prior art
Point.
By the hydrochloric acid solution activation to diatomite, so that diatomite surface is with zinc ferrite active material layer with good
Compatibility, ferrous acid zinc layers cladding is close not to block the original hole of diatomite again.Such lightweight diatomite material for water treatment has
Lighter density is easy to mix with water, can give full play to the quick adsorption effect of material.Meanwhile zinc ferrite active material layer
Activity with decomposing organic pollutant under light illumination, can absorption while decomposing pollutant, so as to use for a long time
In the improvement of organic sewage.
Specific embodiment
Embodiment 1.
A kind of preparation method of lightweight diatomite material for water treatment, mainly includes the following steps that.
(1) preparation of activated diatomaceous earth.
1. the 0.6mol/L hydrochloric acid solution of 500mL is mixed with 35g diatomite, 90 DEG C are heated the mixture to, it is warm herein
Degree heat preservation 5h, then cools down, filters, rinsed with deionized water to filtrate pH=7, obtain solids A.
2., then in 800 DEG C of calcining 2h, being cooled to room temperature by solids A in 220 DEG C of dry 18h, activation diatom is obtained
Soil.
(2) organic zinc is coated.
1. 5g ethylenediamine tetra-acetic acid, 8g zinc acetate, 3g emulsifier op-10 are added in 500mL dehydrated alcohol, stirring is formed
Solution A.
2. solution A and activated diatomaceous earth are mixed, 60 DEG C are heated the mixture to, keeps the temperature 120min at this temperature, is obtained
To mixture A.
3. mixture A is evaporated to volume in 80 DEG C of water-baths no longer to reduce, mixture B is obtained.
(3) preparation of lightweight diatomite material for water treatment.
1. mixture B is mixed with the 0.08mol/L liquor ferri trichloridi of 300mL, stainless steel hydrothermal reaction kettle is moved into,
180 DEG C of reaction 30h, then cooling, filtering obtains solids B.
2., then in 650 DEG C of calcining 3h, being cooled to room temperature by solids B in 220 DEG C of dry 18h, obtaining lightweight diatom
Native material for water treatment.
Wherein, the particle size 8mm of diatomite used, heap density 0.5g/cm3, specific surface area 60m2/ g, pore volume
0.75cm3/g。
The lightweight diatomite material for water treatment of preparation has following technical characteristic: the thickness of diatomite surface cladding ferrous acid zinc layers
Degree is 0.9 μm, specific surface area 170m2/ g, pore volume 0.8cm3/ g, heap density 0.6g/cm3。
Performance detection.
Preparing 200mL concentration is the azophloxine solution of 50 mg/L in beaker, is existed using visible spectrophotometer
Its absorbance is measured at azophloxine maximum absorption wavelength 506nm.It weighs 100mg and passes through light silica prepared by embodiment 1
Diatomaceous earth material for water treatment is simultaneously added in azophloxine solution, and solution is moved to and stirs 20min in camera bellows.Take 5 mL solution mistakes
Filter measures the absorbance of filtrate at wavelength 506nm.Resting solution is placed under 20 W ultraviolet germicidals and is irradiated, 30min is spaced
Sampling and testing solution absorbance.Solution is azophloxine solution at lightweight diatomite water in the percent of decolourization of different time
Manage the adsorption rate and photocatalytic activity on material.
It is learnt according to measurement result, after 20min is protected from light adsorption process, azophloxine is at lightweight diatomite water
Reach adsorption-desorption balance on reason material, saturation balance adsorption rate is 3.2%.Through ultraviolet-sterilization light irradiation, azophloxine
Photocatalytic degradation reaction occurs；After 120min reacts, azophloxine solution decolourizes completely, and percent of decolourization reaches 100%.
Embodiment 2.
A kind of preparation method of lightweight diatomite material for water treatment, mainly includes the following steps that.
(1) preparation of activated diatomaceous earth.
1. the 0.6mol/L hydrochloric acid solution of 500mL is mixed with 35g diatomite, 90 DEG C are heated the mixture to, it is warm herein
Degree heat preservation 5h, then cools down, filters, rinsed with deionized water to filtrate pH=7, obtain solids A.
2., then in 800 DEG C of calcining 2h, being cooled to room temperature by solids A in 220 DEG C of dry 18h, activation diatom is obtained
Soil.
(2) organic zinc is coated.
1. 7g ethylenediamine tetra-acetic acid, 9g zinc acetate, 4g emulsifier op-10 are added in 500mL dehydrated alcohol, stirring is formed
Solution A.
2. solution A and activated diatomaceous earth are mixed, 60 DEG C are heated the mixture to, keeps the temperature 120min at this temperature, is obtained
To mixture A.
3. mixture A is evaporated to volume in 80 DEG C of water-baths no longer to reduce, mixture B is obtained.
(3) preparation of lightweight diatomite material for water treatment.
1. mixture B is mixed with the 0.08mol/L liquor ferri trichloridi of 300mL, stainless steel hydrothermal reaction kettle is moved into,
185 DEG C of reaction 30h, then cooling, filtering obtains solids B.
2., then in 710 DEG C of calcining 3h, being cooled to room temperature by solids B in 220 DEG C of dry 18h, obtaining lightweight diatom
Native material for water treatment.
The particle size 11mm of diatomite used, heap density 0.5g/cm3, specific surface area 60m2/ g, pore volume 0.75cm3/
g。
The lightweight diatomite material for water treatment of preparation has following technical characteristic: the thickness of diatomite surface cladding ferrous acid zinc layers
Degree is 1.0 μm, specific surface area 140m2/ g, pore volume 0.7cm3/ g, heap density 0.63g/cm3。
Embodiment 3.
A kind of preparation method of lightweight diatomite material for water treatment, mainly includes the following steps that.
(1) preparation of activated diatomaceous earth.
1. the 0.6mol/L hydrochloric acid solution of 500mL is mixed with 35g diatomite, 90 DEG C are heated the mixture to, it is warm herein
Degree heat preservation 5h, then cools down, filters, rinsed with deionized water to filtrate pH=7, obtain solids A.
2., then in 800 DEG C of calcining 2h, being cooled to room temperature by solids A in 220 DEG C of dry 18h, activation diatom is obtained
Soil.
(2) organic zinc is coated.
1. 10g ethylenediamine tetra-acetic acid, 11g zinc acetate, 6g emulsifier op-10 are added in 500mL dehydrated alcohol, shape is stirred
At solution A.
2. solution A and activated diatomaceous earth are mixed, 60 DEG C are heated the mixture to, keeps the temperature 120min at this temperature, is obtained
To mixture A.
3. mixture A is evaporated to volume in 80 DEG C of water-baths no longer to reduce, mixture B is obtained.
(3) preparation of lightweight diatomite material for water treatment.
1. mixture B is mixed with the 0.08mol/L liquor ferri trichloridi of 300mL, stainless steel hydrothermal reaction kettle is moved into,
190 DEG C of reaction 30h, then cooling, filtering obtains solids B.
2., then in 780 DEG C of calcining 3h, being cooled to room temperature by solids B in 220 DEG C of dry 18h, obtaining lightweight diatom
Native material for water treatment.
The particle size 15mm of diatomite used, heap density 0.5g/cm3, specific surface area 60m2/ g, pore volume 0.75cm3/
g。
The lightweight diatomite material for water treatment of preparation has following technical characteristic: the thickness of diatomite surface cladding ferrous acid zinc layers
Degree is 1.2 μm, specific surface area 120m2/ g, pore volume 0.6cm3/ g, heap density 0.7g/cm3。
Comparative experiments.
1 ordinary silicon diatomaceous earth of comparative example.
Each 100mg of ordinary silicon diatomaceous earth of lightweight diatomite material for water treatment and comparative example 1 made from Example 1 respectively,
It is added in the azophloxine solution that 200mL concentration is 50 mg/L, there are 2 groups of samples, azo fluorescence is removed to every group of sample
Pink efficiency is compared, and with embodiment 1, testing result see the table below method for testing performance.
Claims (3)
1. a kind of preparation method of lightweight diatomite material for water treatment, which is characterized in that the preparation method includes following technique steps
It is rapid:
(1) preparation of activated diatomaceous earth
1. the 0.6mol/L hydrochloric acid solution of 500mL is mixed with 35g diatomite, 90 DEG C are heated the mixture to, is protected in this temperature
Warm 5h, then cools down, and filtering is rinsed to filtrate pH=7 with deionized water, obtains solids A；
2., then in 800 DEG C of calcining 2h, being cooled to room temperature by solids A in 220 DEG C of dry 18h, obtaining activated diatomaceous earth；
(2) organic zinc is coated
1. 5 ~ 10g ethylenediamine tetra-acetic acid, 8 ~ 11g zinc acetate, 3 ~ 6g emulsifier op-10 are added in 500mL dehydrated alcohol, stirring
Form solution A；
2. solution A and activated diatomaceous earth are mixed, 60 DEG C are heated the mixture to, keeps the temperature 120min at this temperature, is mixed
Close object A；
3. mixture A is evaporated to volume in 80 DEG C of water-baths no longer to reduce, mixture B is obtained；
(3) preparation of lightweight diatomite material for water treatment
1. mixture B is mixed with the 0.08mol/L liquor ferri trichloridi of 300mL, stainless steel hydrothermal reaction kettle is moved into, 180 ~
190 DEG C of reaction 30h, then cooling, filtering obtains solids B；
2., then in 650 ~ 780 DEG C of calcining 3h, being cooled to room temperature by solids B in 220 DEG C of dry 18h, obtaining lightweight diatom
Native material for water treatment.
2. a kind of lightweight diatomite material for water treatment according to claim 1, which is characterized in that the particle of the diatomite
8 ~ 15mm of size, heap density 0.5g/cm3, specific surface area 60m2/ g, pore volume 0.75cm3/g。
3. a kind of lightweight diatomite material for water treatment according to claim 1, which is characterized in that prepared lightweight diatom
Native material for water treatment, in diatomite surface coated ferrous acid zinc layers with a thickness of 0.9 ~ 1.2 μm, 120 ~ 170m of specific surface area2/ g,
0.6 ~ 0.8cm of pore volume3/ g, 0.6 ~ 0.7g/cm of heap density3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227306.5A CN109231340B (en) | 2018-10-22 | 2018-10-22 | Preparation method of light diatomite water treatment material |
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|---|---|---|---|
| CN201811227306.5A CN109231340B (en) | 2018-10-22 | 2018-10-22 | Preparation method of light diatomite water treatment material |
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| CN109231340A true CN109231340A (en) | 2019-01-18 |
| CN109231340B CN109231340B (en) | 2021-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146681A (en) * | 2021-11-30 | 2022-03-08 | 广州东联环保科技有限公司 | Composite material for treating nitrogen-containing sewage and preparation method and application thereof |
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| CN103194222A (en) * | 2013-04-18 | 2013-07-10 | 扬州大学 | Preparation method and application of Fe3O4/ZnO composite nano-particles |
| CN103754953A (en) * | 2014-01-28 | 2014-04-30 | 南京信息工程大学 | Preparation method of multi-morphologynano-sized zinc ferrite |
| US20160102001A1 (en) * | 2014-10-09 | 2016-04-14 | National Tsing Hua University | Kit for wastewater treatment, and manufacturing method for and use of photocatalyst |
-
2018
- 2018-10-22 CN CN201811227306.5A patent/CN109231340B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139195A (en) * | 2011-01-07 | 2011-08-03 | 中国林业科学研究院林产化学工业研究所 | Gas-liquid double-phase reactor and application thereof in production of fatty acid methyl ester in presence of solid-acid catalyst |
| CN103194222A (en) * | 2013-04-18 | 2013-07-10 | 扬州大学 | Preparation method and application of Fe3O4/ZnO composite nano-particles |
| CN103754953A (en) * | 2014-01-28 | 2014-04-30 | 南京信息工程大学 | Preparation method of multi-morphologynano-sized zinc ferrite |
| US20160102001A1 (en) * | 2014-10-09 | 2016-04-14 | National Tsing Hua University | Kit for wastewater treatment, and manufacturing method for and use of photocatalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114146681A (en) * | 2021-11-30 | 2022-03-08 | 广州东联环保科技有限公司 | Composite material for treating nitrogen-containing sewage and preparation method and application thereof |
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