CN107416939A - A kind of inorganic agent for removing heavy metal ions in sewage and preparation method thereof - Google Patents
A kind of inorganic agent for removing heavy metal ions in sewage and preparation method thereof Download PDFInfo
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- CN107416939A CN107416939A CN201710568749.XA CN201710568749A CN107416939A CN 107416939 A CN107416939 A CN 107416939A CN 201710568749 A CN201710568749 A CN 201710568749A CN 107416939 A CN107416939 A CN 107416939A
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- heavy metal
- sewage
- metal ions
- inorganic agent
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of inorganic agent for removing heavy metal ions in sewage, it is made up of following raw material according to parts by weight：16 25 parts of 26 34 parts of sewage plant sludge, 12 18 parts of lime powder, 58 parts of chitosan, 12 parts of the Radix Astragali, 0.6 1.5 parts of the bighead atractylodes rhizome, 0.5 2 parts of the capsule of weeping forsythia, 0.1 1 parts of the root of kudzu vine, 46 parts of formaldehyde, 8 14 parts of sea salt, 10 15 parts of polyisobutylene succinamide and flyash.The present invention also disclosed the preparation method of the product.The product is recycled flyash and sewage plant sludge, resource is saved, the pH value in water need not be adjusted during use, directly launch in the water containing heavy metal ion, you can by heavy metal ion adsorbed, precipitation and chelating, toxic and harmful gas will not be generated in reaction, do not produce secondary pollution, it is green, meet the strategy of sustainable development of country, there are wide market prospects.
Description
Technical field
The present invention relates to sewage treatment area, specifically a kind of inorganic agent for removing heavy metal ions in sewage.
Background technology
With the fast development of China's economic, the quickening of industrialization and urbanization process, environmental pollution and shortage of resources are asked
Topic increasingly shows.According to house and the statistics in town and country construction portion, end 2 months in 2012, the design of China's urban wastewater treatment firm
Scale has reached 1.4 hundred million m3/ d, urban wastewater treatment firm quantity have 3184, and actual treatment amount has reached 1.12 hundred million m3/ d, it is dirty
Heavy metal ion in water refers to that heavy metal loses the ionic condition electronically formed, and heavy metal ion is largely in industrial production
During produce, if being discharged into nature by processing and will result in heavy metal pollution, therefore, in industrial wastewater
Removal of heavy metal ions be also an important link.
In heavy metal-containing wastewater treatment, after input precipitation medicament precipitates it in water, then it is separated off.Precipitation
The medicament used typically has following several：1st, heavy metal ion reaction generation hydroxide in water is made using hydroxide regulation pH value
Removed after thing precipitation；2nd, using sulfide method is added, removed after being allowed to reaction generation sulfide precipitation；3rd, using addition organic sulfur
Compound method, removed after being allowed to reaction generation organic sulfur compound precipitation.But there is shortcoming in above medicament：1st, gone using hydroxide
Removing heavy metals ion, its complex process, and need repeatedly regulation pH value；2nd, using sulfide heavy-metal ion removal, if adjusted
It is improper to save pH value, is also easy to produce hydrogen sulfide gas, it is poisonous and harmful.This all brings inconvenience for the use of people.
The content of the invention
It is an object of the invention to provide a kind of inorganic agent for removing heavy metal ions in sewage, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical scheme：
A kind of inorganic agent for removing heavy metal ions in sewage, is made up of following raw material according to parts by weight：Sewage plant sludge
26-34 parts, lime powder 12-18 parts, chitosan 5-8 parts, Radix Astragali 1-2 parts, bighead atractylodes rhizome 0.6-1.5 parts, capsule of weeping forsythia 0.5-2 parts, Pueraria lobota
Root 0.1-1 parts, formaldehyde 4-6 parts, sea salt 8-14 parts, polyisobutylene succinamide 10-15 parts and flyash 16-25 parts.
As the further scheme of the present invention：Chitosan uses technical grade chitosan solid.
As the further scheme of the present invention：The particle diameter of lime powder is 15-80um.
The preparation method of the inorganic agent for removing heavy metal ions in sewage, is comprised the following steps that：
Step 1, sewage plant sludge is dried to that water content is not higher than 3%, then sewage plant sludge is subjected to calcination, obtained
Sludge firing residue, sludge firing residue is added in the aqueous hydrochloric acid solution that mass fraction is 15-40%, stirring is anti-at normal temperatures
1-2 hours are answered, obtained product is subjected to separation of solid and liquid, lime powder will be added in the liquid after separation, it is Celsius in 40-48
Degree is lower to carry out polymerisation 4-12 hours, obtains polymerizeing aluminum solutions；
Step 2, the Radix Astragali, the bighead atractylodes rhizome, the capsule of weeping forsythia and the root of kudzu vine are positioned in marmite, after soaking 20-40 minutes, then decoct 30-50
Minute, medicinal material is stirred when decocting, stirring number is 2-3 times, the dregs of a decoction, taking liquid is filtered off after the completion of decocting, then chitosan is added
In decoction and stir, obtain the first mixed solution；
Step 3, polyisobutylene succinamide is added in methanol, is stirred and heated to 45-60 degrees Celsius, directly
It is completely dissolved to polyisobutylene succinamide, then adds formaldehyde thereto, react 1.5-3 hours, is cooled to room temperature, then add
Enter sea salt and water, stir, obtain the second mixed solution；
Step 4, will polymerization aluminum solutions, the first mixed solution, the second mixed solution and flyash stir and
5-8 hours are reacted under 40-50 degrees Celsius, supernatant is taken after reaction solution is clarified；
Step 5, by supernatant under inert gas shielding atmosphere, 55-70 degrees Celsius of holding 1- is heated in reactor
3 hours, product is taken out, dried and is ground into powder, you can obtains finished product.
As the further scheme of the present invention：The decoction temperature of step 2 is 65-80 degrees Celsius, the mixing speed of step 4
For 240-360rpm.
Compared with prior art, the beneficial effects of the invention are as follows：The products material wide material sources, equipment investment cost is low,
Suitable for large-scale industrial production；The product is recycled flyash and sewage plant sludge, has saved resource, is used
PH value in Shi Wuxu regulation water, is directly launched in the water containing heavy metal ion, you can by heavy metal ion adsorbed, precipitation
And chelating, toxic and harmful gas will not be generated in reaction, does not produce secondary pollution, it is green, meet the sustainable of country
Development strategy, there are wide market prospects.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Embodiment 1
A kind of inorganic agent for removing heavy metal ions in sewage, is made up of following raw material according to parts by weight：Sewage plant sludge
26 parts, 12 parts of lime powder, 5 parts of technical grade chitosan solid, 1 part of the Radix Astragali, 0.6 part of the bighead atractylodes rhizome, 0.5 part of the capsule of weeping forsythia, the root of kudzu vine 0.1
Part, 4 parts of formaldehyde, 8 parts of sea salt, 10 parts of polyisobutylene succinamide and 16 parts of flyash.
The preparation method of the inorganic agent for removing heavy metal ions in sewage, is comprised the following steps that：
Step 1, sewage plant sludge is dried to that water content is not higher than 3%, then sewage plant sludge is subjected to calcination, obtained
Sludge firing residue, sludge firing residue is added in the aqueous hydrochloric acid solution that mass fraction is 18%, at normal temperatures stirring reaction 1
Hour, obtained product is subjected to separation of solid and liquid, lime powder will be added in the liquid after separation, carried out under 42 degrees Celsius
Polymerisation 6 hours, obtain polymerizeing aluminum solutions；
Step 2, the Radix Astragali, the bighead atractylodes rhizome, the capsule of weeping forsythia and the root of kudzu vine are positioned in marmite, after soaking 24 minutes, then decocted 35 minutes,
Medicinal material is stirred when decocting, stirring number is 2 times, the dregs of a decoction, taking liquid is filtered off after the completion of decocting, then technical grade chitosan solid is added
It is into the liquid and stir, obtain the first mixed solution；
Step 3, polyisobutylene succinamide is added in methanol, is stirred and heated to 48 degrees Celsius, until poly-
Isobutenyl succimide is completely dissolved, then adds formaldehyde thereto, react 2 hours, be cooled to room temperature, add sea salt and
Water, stir, obtain the second mixed solution；
Step 4, polymerization aluminum solutions, the first mixed solution, the second mixed solution and flyash are stirred and 42
Reacted 6 hours under degree Celsius, supernatant is taken after reaction solution is clarified；
Step 5, by supernatant under inert gas shielding atmosphere, it is small that 60 degrees Celsius of holdings 1.5 are heated in reactor
When, product is taken out, dried and is ground into powder, you can obtains finished product.
Embodiment 2
A kind of inorganic agent for removing heavy metal ions in sewage, is made up of following raw material according to parts by weight：Sewage plant sludge
30 parts, 15 parts of lime powder, 7 parts of chitosan, 1.5 parts of the Radix Astragali, 1 part of the bighead atractylodes rhizome, 1.4 parts of the capsule of weeping forsythia, 0.6 part of the root of kudzu vine, 5 parts of formaldehyde,
21 parts of 11 parts of sea salt, 12 parts of polyisobutylene succinamide and flyash.The particle diameter of lime powder is 40um.
The preparation method of the inorganic agent for removing heavy metal ions in sewage, is comprised the following steps that：
Step 1, sewage plant sludge is dried to that water content is not higher than 3%, then sewage plant sludge is subjected to calcination, obtained
Sludge firing residue, sludge firing residue is added in the aqueous hydrochloric acid solution that mass fraction is 22%, at normal temperatures stirring reaction
1.5 hours, obtained product is subjected to separation of solid and liquid, lime powder will be added in the liquid after separation, under 45 degrees Celsius
Carry out polymerisation 8 hours, obtain polymerizeing aluminum solutions；
Step 2, the Radix Astragali, the bighead atractylodes rhizome, the capsule of weeping forsythia and the root of kudzu vine are positioned in marmite, after soaking 32 minutes, decocted under 70 degrees Celsius
Boil 40 minutes, medicinal material is stirred when decocting, stirring number is 3 times, the dregs of a decoction, taking liquid is filtered off after the completion of decocting, then chitosan is added
It is into the liquid and stir, obtain the first mixed solution；
Step 3, polyisobutylene succinamide is added in methanol, is stirred and heated to 50 degrees Celsius, until poly-
Isobutenyl succimide is completely dissolved, then adds formaldehyde thereto, is reacted 2.5 hours, is cooled to room temperature, adds sea salt
And water, stir, obtain the second mixed solution；
Step 4, by polymerization aluminum solutions, the first mixed solution, the second mixed solution and flyash under 270rpm rotating speed
Stir and reacted 7 hours under 46 degrees Celsius, supernatant is taken after reaction solution is clarified；
Step 5, by supernatant under inert gas shielding atmosphere, it is small that 62 degrees Celsius of holdings 3 are heated in reactor
When, product is taken out, dried and is ground into powder, you can obtains finished product.
Embodiment 3
A kind of inorganic agent for removing heavy metal ions in sewage, is made up of following raw material according to parts by weight：Sewage plant sludge
33 parts, 16 parts of lime powder, 8 parts of technical grade chitosan solid, 2 parts of the Radix Astragali, 1.4 parts of the bighead atractylodes rhizome, 2 parts of the capsule of weeping forsythia, 0.9 part of the root of kudzu vine,
24 parts of 6 parts of formaldehyde, 14 parts of sea salt, 15 parts of polyisobutylene succinamide and flyash.The particle diameter of lime powder is 70um.
The preparation method of the inorganic agent for removing heavy metal ions in sewage, is comprised the following steps that：
Step 1, sewage plant sludge is dried to that water content is not higher than 3%, then sewage plant sludge is subjected to calcination, obtained
Sludge firing residue, sludge firing residue is added in the aqueous hydrochloric acid solution that mass fraction is 36%, at normal temperatures stirring reaction 2
Hour, obtained product is subjected to separation of solid and liquid, lime powder will be added in the liquid after separation, carried out under 46 degrees Celsius
Polymerisation 10 hours, obtain polymerizeing aluminum solutions；
Step 2, the Radix Astragali, the bighead atractylodes rhizome, the capsule of weeping forsythia and the root of kudzu vine are positioned in marmite, after soaking 40 minutes, decocted under 75 degrees Celsius
Boiling 45 minutes, stir medicinal material when decocting, stirring number is 2 times, filters off the dregs of a decoction after the completion of decocting, taking liquid, then by technical grade shell
Glycan solid adds into the liquid and stirred, and obtains the first mixed solution；
Step 3, polyisobutylene succinamide is added in methanol, is stirred and heated to 60 degrees Celsius, until poly-
Isobutenyl succimide is completely dissolved, then adds formaldehyde thereto, react 2 hours, be cooled to room temperature, add sea salt and
Water, stir, obtain the second mixed solution；
Step 4, by polymerization aluminum solutions, the first mixed solution, the second mixed solution and flyash under 300rpm rotating speed
Stir and reacted 6 hours under 46 degrees Celsius, supernatant is taken after reaction solution is clarified；
Step 5, by supernatant under inert gas shielding atmosphere, it is small that 64 degrees Celsius of holdings 2 are heated in reactor
When, product is taken out, dried and is ground into powder, you can obtains finished product.
Sewage plant sludge calcination obtains Aluminiferous waste slag, adds hydrochloric acid and lime powder reaction, obtains polymerizeing aluminum solutions,
Floccule body forms that fast, sinking speed is fast, and sludge is recycled, and reaches the purpose to economize on resources；The Radix Astragali, the bighead atractylodes rhizome, company
Stick up and mixed with the decoction liquor of the root of kudzu vine with chitosan, chitosan Chinese medicine dispersion liquid can be formed；Polyisobutylene succinamide, first
The aqueous solution of alcohol and sea salt is used cooperatively with chitosan Chinese medicine dispersion liquid, then coordinates flyash and polymerization aluminum solutions, during use without
The pH value in water need to be adjusted, is directly launched in the water containing heavy metal ion, you can by heavy metal ion adsorbed, precipitation and chela
Close, toxic and harmful gas will not be generated in reaction, does not produce secondary pollution, it is green, meet the sustainable development of country
Strategy.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of inorganic agent for removing heavy metal ions in sewage, it is characterised in that be made up of following raw material according to parts by weight：It is dirty
Waterworks sludge 26-34 parts, lime powder 12-18 parts, chitosan 5-8 parts, Radix Astragali 1-2 parts, bighead atractylodes rhizome 0.6-1.5 parts, the capsule of weeping forsythia
0.5-2 parts, root of kudzu vine 0.1-1 parts, formaldehyde 4-6 parts, sea salt 8-14 parts, polyisobutylene succinamide 10-15 parts and flyash
16-25 parts.
2. the inorganic agent according to claim 1 for removing heavy metal ions in sewage, it is characterised in that the chitosan is adopted
With technical grade chitosan solid.
3. the inorganic agent according to claim 1 or 2 for removing heavy metal ions in sewage, it is characterised in that the oxidation
The particle diameter of calcium powder is 15-80um.
4. a kind of preparation method of the inorganic agent of removal heavy metal ions in sewage as described in claim 1-3 is any, it is special
Sign is, comprises the following steps that：
Step 1, sewage plant sludge is dried to that water content is not higher than 3%, then sewage plant sludge is subjected to calcination, obtain sludge
Ignition residue, sludge firing residue is added in the aqueous hydrochloric acid solution that mass fraction is 15-40%, at normal temperatures stirring reaction 1-
2 hours, obtained product is subjected to separation of solid and liquid, lime powder will be added in the liquid after separation, under 40-48 degrees Celsius
Polymerisation 4-12 hours are carried out, obtain polymerizeing aluminum solutions；
Step 2, the Radix Astragali, the bighead atractylodes rhizome, the capsule of weeping forsythia and the root of kudzu vine are positioned in marmite, after soaking 20-40 minutes, then decoct 30-50 points
Clock, medicinal material is stirred when decocting, stirring number is 2-3 times, the dregs of a decoction, taking liquid is filtered off after the completion of decocting, then chitosan is added into medicine
In liquid and stir, obtain the first mixed solution；
Step 3, polyisobutylene succinamide is added in methanol, is stirred and heated to 45-60 degrees Celsius, until poly-
Isobutenyl succimide is completely dissolved, then adds formaldehyde thereto, is reacted 1.5-3 hours, is cooled to room temperature, adds sea
Salt and water, stir, and obtain the second mixed solution；
Step 4, polymerization aluminum solutions, the first mixed solution, the second mixed solution and flyash are stirred and in 40-50
5-8 hours are reacted under degree Celsius, supernatant is taken after reaction solution is clarified；
Step 5, by supernatant under inert gas shielding atmosphere, 55-70 degrees Celsius is heated in reactor and keeps 1-3 small
When, product is taken out, dried and is ground into powder, you can obtains finished product.
5. the preparation method of the inorganic agent according to claim 4 for removing heavy metal ions in sewage, it is characterised in that institute
The decoction temperature for stating step 2 is 65-80 degrees Celsius, and the mixing speed of step 4 is 240-360rpm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845551A (en) * | 2020-12-23 | 2021-05-28 | 上海辰山植物园 | Method for continuously repairing heavy metal contaminated soil by using fructus forsythiae |
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| CN112845551A (en) * | 2020-12-23 | 2021-05-28 | 上海辰山植物园 | Method for continuously repairing heavy metal contaminated soil by using fructus forsythiae |
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