CN104275147B - A kind of natural ore soil load nanometer arsenic removal material and preparation method thereof - Google Patents
A kind of natural ore soil load nanometer arsenic removal material and preparation method thereof Download PDFInfo
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- CN104275147B CN104275147B CN201410507173.2A CN201410507173A CN104275147B CN 104275147 B CN104275147 B CN 104275147B CN 201410507173 A CN201410507173 A CN 201410507173A CN 104275147 B CN104275147 B CN 104275147B
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- 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
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- 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
- B01J20/0281—Sulfates of compounds other than those provided for in B01J20/045
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- 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
- B01J20/048—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 containing phosphorus, e.g. phosphates, apatites, hydroxyapatites
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- 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
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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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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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
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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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The present invention relates to a kind of natural ore soil load nanometer arsenic removal material and preparation method thereof, belong to water-treatment technology field.This natural ore soil load nanometer arsenic removal material includes the following component according to parts by weight meter: hydroxyapatite 40-60 part, attapulgite modified 30-50 part, nano titanium oxide 1-3 part, nano ceric oxide 0.8-2.5 part, nano imvite 3-6 part, bodied ferric sulfate 0.1-0.5 part, Ludox 4-7 part.Natural ore soil load nanometer arsenic removal material of the present invention is high to the clearance of arsenic in water body, and mechanical strength is good, and can effectively prevent the reunion of nano material；Meanwhile, product structure of the present invention is stable, and regenerability is good, non-secondary pollution, it is easy to popularization and application.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of natural ore soil load nanometer arsenic removal material and preparation method thereof.
Background technology
Current research is reported, the general 1.5% about 19,600,000 Chinese drinking water drunk containing arsenic, thus adding the risk suffering from the arseniasis relevant disease such as cancer, heart disease.Although the probability of percent 1.5 temporarily not very height, but it is as that water pollution is all the more serious and the continuous enhancing of health of people consciousness, solve Removal of Arsenic in Drinking Water problem extremely urgent.
There are some researches show, drinking water can cause mental sickness, diabetes and cancer mixed with arsenide.Intestines and stomach, liver, kidney: intestines and stomach symptom usually occurs after eating arsenic or absorbing arsenic via other approach in a large number.The Penetration ration of intestines and stomach blood vessel increases, and causes loss and the hypotension of body fluid.The mucosa of intestines and stomach inflammation further, necrosis may cause gastric perforation, hemorrhagic gastroenteritis, band hemoperitoneum to rush down.The exposure of arsenic can observe the rising of liver enzymes.Chronic arsenic is eaten and is likely to result in the portal hypertension that non-liver cirrhosis causes.Acute and a large amount of arsenic expose except other toxicity is likely to also can find acute tubular necrosis, and kidney pompon is downright bad and albuminuria occurs.
The excessive keratinization that arsenic also can cause, usually occurs in palm and sole, it appears that projection as small-size maize, diameter is about 0.4-1cm.Excessive cornified dermatosis in the application on human skin of major part arseniasis can many decades all without the change of cancerization, but have the excessive keratinization focus of a minority can be changed into focus pre-cancer, be difficult to differentiate between with original position skin carcinoma.
Blood system: no matter be that the exposure of acute or chronic arsenic all can have influence on blood system, may find that hemopoietic function of bone marrow is constrained and have the situation that whole blood ball number declines, common leukocyte, erythrocyte, platelet decline, and the situation that eosinocyte number rises.Erythrocytic size is probably normally or bigger, it is possible to can find basophilia speckle.
Arsenide is present in the native metal compound in the earth's crust.Generally, arsenide in rich arsenic rock, can be permeated the ground in water and drinking water by current scour, cause drinking person arseniasis or other chronic healthy problems.The a report of the United Nations, play-by-play also describes the impact of arsenic polluted drinking water, and this part of report is pointed out, the initial stage of acute arsenic poisoning: Report, lip had the symptom such as burn feeling and violent vomiting, followed by MOFE and death with metal mouthfeel.
World Health Organization (WHO) and China's current standard regulation, the content of every liter of Arsenic in Drinking Water not can exceed that 10mg.This research is intended to statistics and there is the number drinking arsenic content overproof water risk.
Nano material is in widespread attention in arsenic-containing water processes because of advantages such as its yardstick is little, specific surface area big, high adsorption capacities.But in actual applications, owing to mostly nano material is fine-powder, when being put in water, these fine particles are easy to reunite and inactivate, thus causing that absorption property declines.Further, water needs solid-liquid separation thus increasing cost after processing.Additionally, in actual use, pure nano material is difficult to reclaim and reuse, once reclaim not thorough, by causing that the nano material having adsorbed arsenic is retained in water, causes secondary pollution.Therefore how overcoming the deficiencies in the prior art is the problem that current water-treatment technology field needs solution badly.
Summary of the invention
The invention aims to solve the deficiencies in the prior art, it is provided that a kind of natural ore soil load nanometer arsenic removal material and preparation method thereof, this material absorption property is good, and preparation technology is simple, and regenerability is good, it is easy to popularization and application.
The technical solution used in the present invention is as follows:
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 40-60 part, attapulgite modified 30-50 part, nano titanium oxide 1-3 part, nano ceric oxide 0.8-2.5 part, nano imvite 3-6 part, bodied ferric sulfate 0.1-0.5 part, Ludox 4-7 part；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 20-30% and soak 25-30min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3-5h at 500-600 DEG C, to obtain final product.
It may further be preferable that described natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 48 parts, attapulgite modified 42 parts, nano titanium oxide 2 parts, nano ceric oxide 1.2 parts, nano imvite 5 parts, bodied ferric sulfate 0.26 part, Ludox 5 parts.
It may further be preferable that described natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite modified 36 parts, nano titanium oxide 2.5 parts, nano ceric oxide 2 parts, nano imvite 4 parts, bodied ferric sulfate 0.43 part, Ludox 6 parts.
The preparation method that the present invention also provides for a kind of natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by hydroxyapatite, at 380-450 DEG C, and roasting 1.5-2h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and attapulgite modified addition Ludox, stirring is to mix homogeneously, at 35-55 DEG C, it is sequentially added into nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, dry, to obtain final product.
It may further be preferable that the mixing speed described in step (2) is 60-80r/min.
It may further be preferable that the drying described in step (2) is vacuum drying.
It may further be preferable that described vacuum drying temperature is 30 DEG C.
Compared with prior art, it has the beneficial effect that the present invention(1) natural ore soil load nanometer arsenic removal material of the present invention is high to the clearance of arsenic in water body, and mechanical strength is good, and can effectively prevent the reunion of nano material；(2) product structure of the present invention is stable, and regenerability is good, non-secondary pollution, and life cycle is long；(3) preparation method of the present invention is simple, it is easy to popularization and application.
Accompanying drawing explanation
Fig. 1 is the surface sweeping Electronic Speculum figure of the embodiment of the present invention 1 product.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 40 parts, attapulgite modified 30 parts, nano titanium oxide 1 part, nano ceric oxide 0.8 part, nano imvite 3 parts, bodied ferric sulfate 0.1 part, Ludox 4 parts；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 20% and soak 25min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3h at 500 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 380 DEG C, and roasting 1.5h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and above-mentioned attapulgite modified addition Ludox, stirring is to mix homogeneously, at 35 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 60r/min.
Its scanning electron microscope (SEM) photograph is as shown in Figure 1.
Embodiment 2
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 60 parts, attapulgite modified 50 parts, nano titanium oxide 3 parts, nano ceric oxide 2.5 parts, nano imvite 6 parts, bodied ferric sulfate 0.5 part, Ludox 7 parts；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 30% and soak 30min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 5h at 600 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 450 DEG C, and roasting 2h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and above-mentioned attapulgite modified addition Ludox, stirring is to mix homogeneously, at 55 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 80r/min.
Embodiment 3
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 48 parts, attapulgite modified 42 parts, nano titanium oxide 2 parts, nano ceric oxide 1.2 parts, nano imvite 5 parts, bodied ferric sulfate 0.26 part, Ludox 5 parts；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 23% and soak 27min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 4h at 570 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 400 DEG C, and roasting 1.8h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and above-mentioned attapulgite modified addition Ludox, stirring is to mix homogeneously, at 40 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 70r/min.
Embodiment 4
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite modified 36 parts, nano titanium oxide 2.5 parts, nano ceric oxide 2 parts, nano imvite 4 parts, bodied ferric sulfate 0.43 part, Ludox 6 parts；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 26% and soak 29min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3.5h at 580 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 420 DEG C, and roasting 1.9h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and above-mentioned attapulgite modified addition Ludox, stirring is to mix homogeneously, at 47 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 65r/min.
Comparative example 1
Comparative example 1 and embodiment 4 are distinctive in that: adopt common concave-convex rod soil.
Specific as follows:
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite 36 parts, nano titanium oxide 2.5 parts, nano ceric oxide 2 parts, nano imvite 4 parts, bodied ferric sulfate 0.43 part, Ludox 6 parts；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 420 DEG C, and roasting 1.9h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), hydroxyapatite powder step (1) obtained and above-mentioned attapulgite add in Ludox, stirring is to mix homogeneously, at 47 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 65r/min.
Comparative example 2
Comparative example 2 and embodiment 4 are distinctive in that: do not contain nano ceric oxide；
Specific as follows:
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite modified 36 parts, nano titanium oxide 2.5 parts, nano imvite 4 parts, bodied ferric sulfate 0.43 part, Ludox 6 parts；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 26% and soak 29min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3.5h at 580 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 420 DEG C, and roasting 1.9h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and above-mentioned attapulgite modified addition Ludox, stirring is to mix homogeneously, at 47 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 65r/min.
Comparative example 3
Comparative example 3 and embodiment 4 are distinctive in that: do not contain bodied ferric sulfate.
Specific as follows:
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite modified 36 parts, nano titanium oxide 2.5 parts, nano ceric oxide 2 parts, nano imvite 4 parts, Ludox 6 parts；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 26% and soak 29min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3.5h at 580 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 420 DEG C, and roasting 1.9h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and above-mentioned attapulgite modified addition Ludox, stirring is to mix homogeneously, at 47 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide and nano imvite, stirs to mix homogeneously, wet method extruder grain, last with 30 DEG C of vacuum dryings drying, to obtain final product；Wherein, the mixing speed described in step (2) is 65r/min.
Comparative example 4
Comparative example 4 and embodiment 4 are distinctive in that: do not contain Ludox；
Specific as follows:
A kind of natural ore soil load nanometer arsenic removal material, the following component including according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite modified 36 parts, nano titanium oxide 2.5 parts, nano ceric oxide 2 parts, nano imvite 4 parts, bodied ferric sulfate 0.43 part；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 26% and soak 29min, after the supernatant is removed in centrifugation, drip the sodium hydrate aqueous solution of the 2mol/L of 2 times amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3.5h at 580 DEG C, to obtain final product；
The preparation method of the present embodiment natural ore soil load nanometer arsenic removal material, comprises the steps:
Step (1), is placed in Muffle furnace by above-mentioned hydroxyapatite, at 420 DEG C, and roasting 1.9h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), the hydroxyapatite powder that step (1) is obtained with above-mentioned attapulgite modified mix homogeneously after, at 47 DEG C, it is sequentially added into above-mentioned nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirring is to mix homogeneously, wet method extruder grain, finally dries with 30 DEG C of vacuum dryings, to obtain final product；Wherein, the mixing speed described in step (2) is 65r/min.
Performance detects
Embodiment of the present invention 1-4 product and comparative example 1-4 product are carried out performance detection, and result is as shown in table 1.
Wherein dearsenicating method is that to add quality in arsenic-containing water be its arsenic removal material of 0.4%, vibrates in water bath with thermostatic control agitator, and rotating speed is 150r/min, under 25 DEG C of conditions, and standing sedimentation after 12 hours.Described arsenic-containing water sample 1 is containing trivalent arsenic (As (III)) 5000 μ g/L, Na+=0.01mol/L, pH=6.8 pending water sample；Sample 2 is containing pentavalent arsenic ((As (V)) 5000 μ g/L, Na+=0.01mol/L, pH=6.8 pending water sample.
Table 1
From table 1, embodiment 1-4 product is respectively provided with good arsenic removal effect, and is superior to comparative example；Embodiment 4 is optimum embodiment of the present invention.Simultaneously, from in table, there is together with attapulgite modified, other components of nano ceric oxide, bodied ferric sulfate and the present invention good synergism, and Ludox and bodied ferric sulfate are for the intensity of arsenic removal material of the present invention and specific surface area is very significant considering that effect.
Claims (7)
1. a natural ore soil load nanometer arsenic removal material, it is characterised in that include the following component according to parts by weight meter:
Hydroxyapatite 40-60 part, attapulgite modified 30-50 part, nano titanium oxide 1-3 part, nano ceric oxide 0.8-2.5 part, nano imvite 3-6 part, bodied ferric sulfate 0.1-0.5 part, Ludox 4-7 part；
Described attapulgite modified preparation method is be placed in by attapulgite ultrasonic in the dilute sulfuric acid that mass concentration is 20-30% and soak 25-30min, after the supernatant is removed in centrifugation, the sodium hydrate aqueous solution of the 2mol/L of 2 times amount of dropping lower floor thing amount wherein, dropping limit, limit is stirred, after dripping, filter, take filtering residue and be washed to neutrality, then roasting 3-5h at 500-600 DEG C, to obtain final product.
2. natural ore soil load nanometer arsenic removal material according to claim 1, it is characterised in that include the following component according to parts by weight meter:
Hydroxyapatite 48 parts, attapulgite modified 42 parts, nano titanium oxide 2 parts, nano ceric oxide 1.2 parts, nano imvite 5 parts, bodied ferric sulfate 0.26 part, Ludox 5 parts.
3. natural ore soil load nanometer arsenic removal material according to claim 1, it is characterised in that include the following component according to parts by weight meter:
Hydroxyapatite 55 parts, attapulgite modified 36 parts, nano titanium oxide 2.5 parts, nano ceric oxide 2 parts, nano imvite 4 parts, bodied ferric sulfate 0.43 part, Ludox 6 parts.
4. the preparation method of the natural ore soil load nanometer arsenic removal material described in claim 1, it is characterised in that comprise the steps:
Step (1), is placed in Muffle furnace by hydroxyapatite, at 380-450 DEG C, and roasting 1.5-2h, it is crushed to particle diameter after taking-up less than 0.1mm, obtains powder；
Step (2), in the hydroxyapatite powder that step (1) is obtained and attapulgite modified addition Ludox, stirring is to mix homogeneously, at 35-55 DEG C, it is sequentially added into nano titanium oxide, nano ceric oxide, nano imvite and bodied ferric sulfate, stirs to mix homogeneously, wet method extruder grain, dry, to obtain final product.
5. the preparation method of natural ore soil load nanometer arsenic removal material according to claim 4, it is characterised in that the mixing speed described in step (2) is 60-80r/min.
6. the preparation method of natural ore soil load nanometer arsenic removal material according to claim 4, it is characterised in that the drying described in step (2) is vacuum drying.
7. the preparation method of natural ore soil load nanometer arsenic removal material according to claim 6, it is characterised in that described vacuum drying temperature is 30 DEG C.
Priority Applications (1)
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| CN201410507173.2A CN104275147B (en) | 2014-09-28 | 2014-09-28 | A kind of natural ore soil load nanometer arsenic removal material and preparation method thereof |
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| CN201410507173.2A CN104275147B (en) | 2014-09-28 | 2014-09-28 | A kind of natural ore soil load nanometer arsenic removal material and preparation method thereof |
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| CN105776375A (en) * | 2016-05-24 | 2016-07-20 | 许婷 | Wastewater treating agent for wastewater containing heavy metal and preparing method of wastewater treating agent |
| CN109010889A (en) * | 2017-11-22 | 2018-12-18 | 天津中天精科科技有限公司 | A kind of bentonite deodorizer |
| RU2675866C1 (en) * | 2018-03-14 | 2018-12-25 | Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") | Method of obtaining composition sorbent |
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