CN101693185A - Industrial salty slurry base composite dephosphorization material and preparation method thereof - Google Patents
Industrial salty slurry base composite dephosphorization material and preparation method thereof Download PDFInfo
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- CN101693185A CN101693185A CN200910184865A CN200910184865A CN101693185A CN 101693185 A CN101693185 A CN 101693185A CN 200910184865 A CN200910184865 A CN 200910184865A CN 200910184865 A CN200910184865 A CN 200910184865A CN 101693185 A CN101693185 A CN 101693185A
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Abstract
An industrial salty slurry base composite dephosphorization material and a preparation method thereof utilize industrial salty slurry and carbide slag, binder and foaming agent as auxiliary materials for developing a composite dephosphorization material used for sewage (wastewater) treatment, wherein all components in the material have the following proportions in the total material mass: 65% to 85% of the salty slurry, 10% to 25% of the carbide slag, 4% to 10% of the binder and 2-10 per thousand of the foaming agent; and the use of the high-efficient dephosphorization material can lead phosphorus concentration in discharged sewage (wastewater) to reach national 'Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant' (GB18918-2002) primary (A) standard, thus reducing the condition of waterbody eutrophication, and improving the regional ecological environment.
Description
Technical field
The present invention utilizes industrial salty slurry and is aided with a kind of composite dephosphorization material that is used for dirt (giving up) water treatment that carbide slag, binding agent and blowing agent are developed, and belongs to the technical field of water prevention and cure of pollution.
Background technology
Phosphorus is the principal element that causes body eutrophication.Simultaneously, phosphorus also is the indispensable nutrient of life entity, be a kind ofly be difficult to regenerate, exhausted day by day resource.
The removal method of phosphor in sewage mainly contains bioanalysis and chemical method at present.Bioanalysis dephosphorization process complexity, and stable water outlet is relatively poor; Though chemical method dephosphorization treatment effect is good, the dephosphorization material of using (medicament) mostly is industrial products such as lime, aluminium salt, molysite, ferrous salt and magnesium salts and since the dephosphorization medicament expense with higher, sludge quantity is bigger, has caused the bottleneck of this method in production application.Existing studies show that, develop the phosphorus high adsorption capacity, have certain intensity and chemical stability, little, the good in economic efficiency efficient dephosphorization material of resistance to water-flow, and be applied in the chemical dephosphorization of various dirts (giving up) water, with the phosphorus enrichment in the sewage and separate, be the important means that guarantees the sewage dephosphorization effect, realizes the phosphor resource recycling.
Salt slurry, carbide slag are the discarded objects of chemical industry discharging.Land resource is not only wasted in banking up in a large number of these discarded objects, and causes environmental pollution easily.At present, the annual emissions of China's salt slurry reaches more than 600,000 tons, nearly 5,000,000 tons of the annual emissions of carbide slag (dried slag).These waste residues only partly be used as at present road-making material, backfilling material, brick producing material etc. low value-added utilize pattern; And be that base material is developed the efficient dephosphorization material that is fit to sewage disposal and realized the recycling of phosphor resource with this with the industrial salty slurry, this is not seen in report at home and abroad as yet.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of industrial salty slurry base composite dephosphorization material and preparation method thereof, use by this efficient dephosphorization material, can make the phosphorus concentration of dirt (giving up) water discharging reach (GB18918-2002) one-level (A) standard of country's " urban wastewater treatment firm pollutant emission standard ", alleviate the body eutrophication situation, improve region environment.
Technical scheme: the ratio of each the ingredients constitute material gross mass in the industrial salty slurry base composite dephosphorization material of the present invention is:
Salt slurry: 65%-85%
Carbide slag: 10%-25%
Binding agent: 4%-10%
Blowing agent: 2 ‰-10 ‰.
The granularity of described salt slurry is the 70-200 order.
Described binding agent is cement or gypsum.
The preparation method of industrial salty slurry base composite dephosphorization material is:
A. with mixing in salt slurry, carbide slag and the binding agent input cylinder comminutor, make Binder Materials;
B. blowing agent and water are added in the refiner, at 4000rmin
-1Above rotating speed stirred 5 minutes down, blowing agent was broken into " milk " shape foam; Foam is added in the Binder Materials that mixes in batches slightly to granulating and forming about 1 hour;
C. cold process maintenance: temperature greater than 5 ℃ environment in, the spheroid of moulding is covered 24h, the maintenance of sprinkling water behind 6～8h; Curing period, be about 2～3 days.
Beneficial effect: by exploitation, production, application and final disposal to material of the present invention; can realize the utilization again and the resource of trade waste; and appended the added value of twice laid; reduced the cost recovery of phosphor resource; the resource of environment, realization discarded object not only can be protected, good social benefit and economic benefit can also be obtained.
The specific embodiment
With the laboratory small lot batch manufacture is the concrete embodiment of example explanation.
(1) salt slurry (70-200 order) (mass ratio):
The ratio upper limit: 85%
Ratio lower limit: 65%
The best point of ratio: 74%
(2) carbide slag (mass ratio):
The ratio upper limit: 25%
Ratio lower limit: 10%
The best point of ratio: 20%
(3) binding agent (mass ratio):
The ratio upper limit: 10%
Ratio lower limit: 5%
The best point of ratio: 6%
Device: revolving drum granulator, refiner (because the laboratory scale foaming agent consumption seldom, it is very big that productivity system is steeped machine-processed bubble amount, so select the rotating speed refiner replacement suitable with it for use).
The preparation method of industrial salty slurry base composite dephosphorization material is:
A. with mixing in salt slurry, carbide slag and the binding agent input cylinder comminutor, make Binder Materials;
B. blowing agent and water are added in the refiner, at 4000rmin
-1Above rotating speed stirred 5 minutes down, blowing agent was broken into " milk " shape foam; Foam is added in the Binder Materials that mixes in batches slightly to granulating and forming about 1 hour;
C. cold process maintenance: temperature greater than 5 ℃ environment in, the spheroid of moulding is covered 24h, the maintenance of sprinkling water behind 6～8h; Curing period, be about 2～3 days.
Example 1:
Binder Materials gross mass 400g, salt slurry (70-200 order) 296g wherein, carbide slag 80g, binding agent 24g, blowing agent 3.2mL, water 60mL.
To mix in salt slurry, carbide slag and the binding agent input cylinder comminutor.Get the 3.2mL blowing agent and 60mL water is added in the refiner, at 4000rmin
-1Above rotating speed stirred 5 minutes down, blowing agent was broken into " milk " shape foam.Foam is added in the Binder Materials that mixes in batches slightly to granulating and forming about 1 hour.
Implement the back effect:
1. the static test result shows, in the time of 25 ℃, salt slurry base dephosphorization material (0.5cm particle diameter) is 17.86mgg to the theoretical saturated extent of adsorption of phosphorus
-1
2. initial phosphate concn is 5mgL
-1, salt slurry base dephosphorization material (0.5cm particle diameter) dosage is 8gL
-1, the residue phosphate concn that reacts after 6 hours drops to 0.41mgL
-1(＜0.5mg/L) reaches (GB18918-2002) one-level A standard of country's " urban wastewater treatment firm pollutant emission standard ".
Example 2:
Binder Materials gross mass 500g, salt slurry (70-200 order) 425g wherein, carbide slag 125g, binding agent 50g, blowing agent 4.0mL, water 75mL.
To mix in salt slurry, carbide slag and the binding agent input cylinder comminutor.Get the 4.0mL blowing agent and 75mL water is added in the refiner, at 4000rmin
-1Above rotating speed stirred 5 minutes down, blowing agent was broken into " milk " shape foam.Foam is added in the Binder Materials that mixes in batches slightly to granulating and forming about 1 hour.
Implement the back effect:
1. the static test result shows, in the time of 25 ℃, salt slurry base dephosphorization material (0.5cm particle diameter) is 17.86mgg to the theoretical saturated extent of adsorption of phosphorus
-1
2. initial phosphate concn is 5mgL
-1, salt slurry base dephosphorization material (0.5cm particle diameter) dosage is 8gL
-1, the residue phosphate concn that reacts after 6 hours drops to 0.41mgL
-1(＜0.5mg/L) reaches (GB18918-2002) one-level A standard of country's " urban wastewater treatment firm pollutant emission standard ".
Example 3:
Binder Materials gross mass 800g, salt slurry (70-200 order) 520g wherein, carbide slag 80g, binding agent 40g, blowing agent 6.4mL, water 120mL.
To mix in salt slurry, carbide slag and the binding agent input cylinder comminutor.Get the 6.4mL blowing agent and 120mL water is added in the refiner, at 4000rmin
-1Above rotating speed stirred 5 minutes down, blowing agent was broken into " milk " shape foam.Foam is added in the Binder Materials that mixes in batches slightly to granulating and forming about 1 hour.
Implement the back effect:
1. the static test result shows, in the time of 25 ℃, salt slurry base dephosphorization material (0.5cm particle diameter) is 17.86mgg to the theoretical saturated extent of adsorption of phosphorus
-1
2. initial phosphate concn is 5mgL
-1, salt slurry base dephosphorization material (0.5cm particle diameter) dosage is 8gL
-1, the residue phosphate concn that reacts after 6 hours drops to 0.41mgL
-1(＜0.5mg/L) reaches (GB18918-2002) one-level A standard of country's " urban wastewater treatment firm pollutant emission standard ".
Claims (4)
1. industrial salty slurry base composite dephosphorization material is characterized in that the ratio of each the ingredients constitute material gross mass in this material is:
Salt slurry: 65%-85%
Carbide slag: 10%-25%
Binding agent: 4%-10%
Blowing agent: 2 ‰-10 ‰.
2. industrial salty slurry base composite dephosphorization material according to claim 1, the granularity that it is characterized in that described salt slurry is the 70-200 order.
3. industrial salty slurry base composite dephosphorization material according to claim 1 is characterized in that described binding agent is cement or gypsum.
4. the preparation method of an industrial salty slurry base composite dephosphorization material as claimed in claim 1 is characterized in that this method is:
A. with mixing in salt slurry, carbide slag and the binding agent input cylinder comminutor, make Binder Materials;
B. blowing agent and water are added in the refiner, at 4000rmin
-1Above rotating speed stirred 5 minutes down, blowing agent was broken into " milk " shape foam; Foam is added in the Binder Materials that mixes in batches slightly to granulating and forming about 1 hour;
C. cold process maintenance: temperature greater than 5 ℃ environment in, the spheroid of moulding is covered 24h, the maintenance of sprinkling water behind 6～8h; Curing period, be about 2～3 days.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805035A (en) * | 2010-03-20 | 2010-08-18 | 王军 | Dephosphorizing method of eutrophic seawater |
| CN101935195A (en) * | 2010-09-01 | 2011-01-05 | 郑俊 | Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof |
| CN102716729A (en) * | 2012-07-05 | 2012-10-10 | 沈阳工业大学 | Preparation method of recyclable water treatment material |
| CN103011365A (en) * | 2012-11-27 | 2013-04-03 | 常州大学 | Compound phosphorus removing agent for removing low-concentration phosphorus wastewater |
| CN106040168A (en) * | 2016-06-08 | 2016-10-26 | 芜湖市长江起重设备制造有限公司 | High-dispersity crane electroplating wastewater treating agent and preparation method thereof |
| CN111943341A (en) * | 2020-08-12 | 2020-11-17 | 中冶一局环境科技有限公司 | Phosphorus removal composition and preparation method thereof, phosphorus removal product and preparation method thereof, and phosphorus removal method |
| CN112246214A (en) * | 2020-06-29 | 2021-01-22 | 河北工业大学 | Preparation method and application of phosphorus-removing ceramsite in wastewater |
| CN114409349A (en) * | 2021-12-31 | 2022-04-29 | 北京润鸣环境科技有限公司 | Salty mud curing material and preparation method and application thereof |
-
2009
- 2009-10-16 CN CN2009101848657A patent/CN101693185B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805035A (en) * | 2010-03-20 | 2010-08-18 | 王军 | Dephosphorizing method of eutrophic seawater |
| CN101935195A (en) * | 2010-09-01 | 2011-01-05 | 郑俊 | Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof |
| CN101935195B (en) * | 2010-09-01 | 2012-07-25 | 郑俊 | Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof |
| CN102716729A (en) * | 2012-07-05 | 2012-10-10 | 沈阳工业大学 | Preparation method of recyclable water treatment material |
| CN102716729B (en) * | 2012-07-05 | 2014-01-15 | 沈阳工业大学 | Preparation method of recyclable water treatment material |
| CN103011365A (en) * | 2012-11-27 | 2013-04-03 | 常州大学 | Compound phosphorus removing agent for removing low-concentration phosphorus wastewater |
| CN106040168A (en) * | 2016-06-08 | 2016-10-26 | 芜湖市长江起重设备制造有限公司 | High-dispersity crane electroplating wastewater treating agent and preparation method thereof |
| CN112246214A (en) * | 2020-06-29 | 2021-01-22 | 河北工业大学 | Preparation method and application of phosphorus-removing ceramsite in wastewater |
| CN112246214B (en) * | 2020-06-29 | 2022-09-20 | 河北工业大学 | Preparation method and application of phosphorus-removing ceramsite in wastewater |
| CN111943341A (en) * | 2020-08-12 | 2020-11-17 | 中冶一局环境科技有限公司 | Phosphorus removal composition and preparation method thereof, phosphorus removal product and preparation method thereof, and phosphorus removal method |
| CN111943341B (en) * | 2020-08-12 | 2023-01-10 | 中冶一局环境科技有限公司 | Phosphorus removal composition and preparation method thereof, phosphorus removal product and preparation method thereof, and phosphorus removal method |
| CN114409349A (en) * | 2021-12-31 | 2022-04-29 | 北京润鸣环境科技有限公司 | Salty mud curing material and preparation method and application thereof |
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