CN103880305A - Curing agent for treatment of heavy metal pollution - Google Patents
Curing agent for treatment of heavy metal pollution Download PDFInfo
- Publication number
- CN103880305A CN103880305A CN201410068246.2A CN201410068246A CN103880305A CN 103880305 A CN103880305 A CN 103880305A CN 201410068246 A CN201410068246 A CN 201410068246A CN 103880305 A CN103880305 A CN 103880305A
- Authority
- CN
- China
- Prior art keywords
- curing agent
- heavy metal
- slag
- silicate
- solidifying agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to the technical field of curing agent, particularly to a curing agent for treatment of heavy metal pollution. The curing agent comprises the following components in percentage by weight: 5-60% of silicate, 5-60% of quartz powder, 1-5 % of sodium dodecyl sulfate, 1-10% of carbon powder, 1-10% iron powder, 1-15% starch and 1-10% manganese oxide. The smelting waste slag can be modified by using the curing agent, for example, the curing agent together with heavy metal oxide in waste acid residue, aluminum slag and manganese becomes a glass state, and achieves performance characteristics of easy melting and matrix modification, so that co-sintered products of waste acid residue, aluminum slag, manganese slag and curing agent have an ideal microstructure, the leaching of heavy metals and transport of heavy metals with the outside environment can effectively be reduced or prevented by curing and stabilizing heavy metals in waste slags, the curing agent has good stabilizing effect on heavy metals, and the smelting waste slag resource is utilized to achieve the purposes of saving energy, reducing emission and protecting environment.
Description
Technical field
The present invention relates to solidifying agent technical field, relate in particular to a kind of for administering the solidifying agent of heavy metal contamination.
Background technology
At present, smeltery can produce a large amount of waste residues in smelting production process, the value that these waste residues are not substantially recycled or refine noble metal, but also contain the virulent heavy metals such as copper, lead, zinc, cadmium, arsenic, mercury.Dirty acid sludge belongs to productivity waste residue, for the hydrometallurgy resource recovery process by product of zinc, wherein contain mercury, arsenic, cadmium, lead etc. to the most serious heavy metallic poison material of humans and animals harm, these heavy metallic poison materials enter after the various environment such as atmosphere, water body and soil, all can be absorbed by animal by various approach such as respiratory tract, digestive tube and skins, in the time that these heavy metals run up to a certain degree in animal body, can directly affect the growing of animal, physiological loading, until cause the death of animal.Because heavy metal can not be degraded by microorganisms, in environment, can only there is the mutual conversion between various forms, so, the elimination of heavy metal contamination is difficulty very, the impact that biology is caused and harm are very serious, bring huge potential safety hazard to society and environment, greatly increased the burden of enterprise, be unfavorable for the Sustainable development of enterprise.The main disposal way of heavy metal contamination, is the toxic that reduces waste residue by chemical reaction, and then carries out subsequent disposal at present.But, processing like this one side cost high, can not thoroughly process on the other hand, even if therefore adopted some chemical treatments, its waste residue after treatment still has very strong pollution and murder by poisoning.Dirty acid sludge belongs to productivity waste residue, and it is can utility value very low, and water ratio is generally in 80% left and right, so waste residue output is very large, such as Zhu Ye group monthly can produce the waste residue of 10000 tons of left and right.
Dirty acid sludge has only just been stacked millions of tons etc. in area, Zhuzhou pending, has not only taken a large amount of soils to stack, and has produced very large environmental pollution.In addition, the annual new aluminium making residue producing of China has up to ten million many tons, and the disposal options of aluminium making residue is that its landfill is disposed at present, and not only disposal costs is high and easy contaminate environment.Due to the high construction in slag field and running cost, the slag storehouse addressing of current domestic most waste residues not science, build lack of standardization, the measure such as safety, antiseepage does not reach national related request, the pollutents such as the heavy metal ion in slag very easily enter in Soil Surrounding, surface water and groundwater by percolate etc., considerably beyond local environment capacity, cause the problems such as water quality of river function reduction, Drinking Water for Residents be contaminated, have a strong impact on harmony, the steady progression of local society economy, also restricting continuing, developing in a healthy way of Metal smelting industry.
To sum up, how the ecological environment problem causing for waste residues such as dirty acid sludge, aluminium slag and manganese slags, properly process waste residue and become the emphasis of paying close attention in the industry.Carry out recycling treatment if China is smelted every year to a large amount of waste residues of generation, waste residue is prepared into environmental protection haydite, to enable the being applied to industries such as building, agricultural, can reach energy-saving and emission-reduction, the effect of protection of the environment.But the waste residue of smeltery is because composition element is single, if non-modified can not directly be fired into haydite, do not recycle the possibility of extracting noble metal yet.Therefore, according to the feature of melting waste slag, need badly develop a kind of can be to melting waste slag modification to administer the solidifying agent of heavy metal contamination.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and provide a kind of can to melting waste slag modification for administering the solidifying agent of heavy metal contamination.
The present invention is achieved through the following technical solutions.
For administering a solidifying agent for heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 5-55%
Silica powder 5-55%
Sodium lauryl sulphate 1-5%
Carbon dust 1-10%
Iron powder 1-10%
Starch 1-15%
Manganese oxide 1-10%.
Preferably, a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 5-40%
Silica powder 40-55%
Sodium lauryl sulphate 2-5%
Carbon dust 5-10%
Iron powder 4-10%
Starch 8-15%
Manganese oxide 1-5%.
Preferred, a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 40-55%
Silica powder 15-50%
Sodium lauryl sulphate 1-2%
Carbon dust 1-5%
Iron powder 1-5%
Starch 1-8%
Manganese oxide 5-10%.
Another is preferred, and a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 15-50%
Silica powder 20-45%
Sodium lauryl sulphate 1.5-5%
Carbon dust 2-9%
Iron powder 2-9%
Starch 3-12%
Manganese oxide 3-8%.
Another is preferred, and a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 25-45%
Silica powder 25-45%
Sodium lauryl sulphate 2-4%
Carbon dust 3-8%
Iron powder 3-8%
Starch 5-10%
Manganese oxide 4-7%.
One is preferred again, and a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 35-40%
Silica powder 35-40%
Sodium lauryl sulphate 3-4%
Carbon dust 5-7%
Iron powder 5-7%
Starch 6-9%
Manganese oxide 5-6%.
One is preferred again, and a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent:
Silicate 36%
Silica powder 38%
Sodium lauryl sulphate 3%
Carbon dust 5%
Iron powder 6%
Starch 7%
Manganese oxide 5%.
Silicate is mainly by CaO, SiO
2, Al
2o
3and Fe
2o
3composition, CaO, SiO
2, Al
2o
3and Fe
2o
3be not to exist with independent oxide compound, but the aggregate of the multi mineral that two or more oxide compound generates through high-temperature chemical reaction mainly contain: tricalcium silicate 3CaO.SiO
2, Dicalcium Phosphate (Feed Grade) 2CaO.SiO
2, tricalcium aluminate 3CaO. Al
2o
3, tetracalcium aluminoferrite 4CaO.Al
2o
3.Fe
2o
3.Conventionally grog mesosilicic acid DFP and Dicalcium Phosphate (Feed Grade) content account for 75% left and right, and the theoretical content of tricalcium aluminate and tetracalcium aluminoferrite accounts for 22% left and right.
Silica powder (same to quartz sand) claims again silicon powder, is a kind of silicate minerals of hard, wear-resisting, stable chemical performance, and its essential mineral composition is SiO
2the color of quartz sand is oyster white or colourless translucent, and hardness is 7, and property is crisp, conchoidal fracture, oily luster, density is 2.65, tap density (20-200 order) is 1.5, its chemistry, calorifics and mechanical property have obvious anisotropy, be insoluble to acid, be slightly soluble in KOH solution, 1650 ℃ of fusing points.
The another name of sodium lauryl sulphate is lauric alcohol (or lauryl alcohol) sodium sulfate, K12, whipping agent etc., and its molecular formula is C
12h
25sO
4na, molecular weight is 288.38, HLB:40, belongs to hydrophilic group tensio-active agent; Outward appearance and proterties are white in color or cream-colored crystallization scale or powder, and pH is 7.5-9.5, fusing point (℃) be 204-207, when relative density (water=1) is 1.09,298K, the CMC value of sodium lauryl sulphate is about 0.008moldm
-3, solvability: be soluble in hot water, water-soluble, be dissolved in hot ethanol, be slightly soluble in alcohol, be insoluble to chloroform, ether.Sodium lauryl sulphate is a kind of nontoxic anion surfactant, its biological degradability >90%, itself and negatively charged ion, the multiple compatibleness of nonionic are good, have good emulsifying, foaming, infiltration, decontamination and dispersing property, to prepare environment-friendly light haydite.
Above-mentioned for administering the preparation method of solidifying agent of heavy metal contamination, it comprises following preparation process: iron powder, the starch of 1-15% and the manganese oxide of 1-10% of the sodium lauryl sulphate of the silicate that is 5-60% by mass percent, the silica powder of 5-60%, 1-5%, the carbon dust of 1-10%, 1-10% are first pulverized, ball milling again, finally be dry mixed evenly, make solidifying agent finished product.
Beneficial effect of the present invention is: solidifying agent of the present invention can carry out modification to melting waste slag, for example, with dirty acid sludge, aluminium slag, heavy metal oxide in manganese slag generates vitreous state, and reach the performance characteristics such as meltable warm matrix modification, make dirty acid sludge, aluminium slag, the common burning product of manganese slag and solidifying agent possesses a comparatively desirable microtexture, heavy metal element in curable stable waste residue, effectively reduce or prevent the leaching of heavy metal element and with extraneous transmission, good to the stabilising effect of heavy metal, be beneficial to melting waste slag recycling, to reach energy-saving and emission-reduction, the object of protection of the environment.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
embodiment 1.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 5% silicate, 55% silica powder, 5% sodium lauryl sulphate, 9% carbon dust, 9% iron powder, 12% starch, 5% manganese oxide.
embodiment 2.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 55% silicate, 5% silica powder, 1% sodium lauryl sulphate, 1% carbon dust, 1% iron powder, 1% starch, 1% manganese oxide.
embodiment 3.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 15% silicate, 45% silica powder, 5% sodium lauryl sulphate, 9% carbon dust, 9% iron powder, 12% starch, 5% manganese oxide.
embodiment 4.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 50% silicate, 25% silica powder, 2% sodium lauryl sulphate, 4% carbon dust, 4% iron powder, 7% starch, 8% manganese oxide.
embodiment 5.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 25% silicate, 45% silica powder, 4% sodium lauryl sulphate, 7% carbon dust, 7% iron powder, 6% starch, 6% manganese oxide.
embodiment 6.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 45% silicate, 25% silica powder, 4% sodium lauryl sulphate, 8% carbon dust, 3% iron powder, 5% starch, 10% manganese oxide.
embodiment 7.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 35% silicate, 35% silica powder, 4% sodium lauryl sulphate, 7% carbon dust, 7% iron powder, 9% starch, 3% manganese oxide.
embodiment 8.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 40% silicate, 35% silica powder, 4% sodium lauryl sulphate, 6% carbon dust, 7% iron powder, 7% starch, 1% manganese oxide.
embodiment 9.
The present embodiment a kind of for administering the solidifying agent of heavy metal contamination, it is made up of the raw material of following mass percent: 36% silicate, 38% silica powder, 3% sodium lauryl sulphate, 5% carbon dust, 6% iron powder, 7% starch, 5% manganese oxide.
The Leaching Heavy Metals that utilizes the solidifying agent of embodiment 1 ~ embodiment 9 to process the haydite made of melting waste slag detects data in table 1.
Table 1
| Test item | Detected result | The concentration limit that national standard requires |
| Copper (mg/L) | 3.29 | 100 |
| Zinc (mg/L) | 0.1 | 100 |
| Plumbous (mg/L) | Do not detect | 5 |
As can be seen from Table 1, the concentration limit that every heavy metal content that the haydite that the solidifying agent processing melting waste slag of embodiment 1 ~ embodiment 9 is made leaches in leach liquor all stipulates far below GB/T5085.3-2007, solidifying agent of the present invention is good to the stabilising effect of the heavy metal in melting waste slag, has environmental safety.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (7)
1. for administering a solidifying agent for heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 5-55%
Silica powder 5-55%
Sodium lauryl sulphate 1-5%
Carbon dust 1-10%
Iron powder 1-10%
Starch 1-15%
Manganese oxide 1-10%.
2. according to claim 1 a kind of for administering the solidifying agent of heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 5-40%
Silica powder 40-55%
Sodium lauryl sulphate 2-5%
Carbon dust 5-10%
Iron powder 4-10%
Starch 8-15%
Manganese oxide 1-5%.
3. according to claim 1 a kind of for administering the solidifying agent of heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 40-55%
Silica powder 15-50%
Sodium lauryl sulphate 1-2%
Carbon dust 1-5%
Iron powder 1-5%
Starch 1-8%
Manganese oxide 5-10%.
4. according to claim 1 a kind of for administering the solidifying agent of heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 15-50%
Silica powder 20-45%
Sodium lauryl sulphate 1.5-5%
Carbon dust 2-9%
Iron powder 2-9%
Starch 3-12%
Manganese oxide 3-8%.
5. according to claim 1 a kind of for administering the solidifying agent of heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 25-45%
Silica powder 25-45%
Sodium lauryl sulphate 2-4%
Carbon dust 3-8%
Iron powder 3-8%
Starch 5-10%
Manganese oxide 4-7%.
6. according to claim 1 a kind of for administering the solidifying agent of heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 35-40%
Silica powder 35-40%
Sodium lauryl sulphate 3-4%
Carbon dust 5-7%
Iron powder 5-7%
Starch 6-9%
Manganese oxide 5-6%.
7. according to claim 1 a kind of for administering the solidifying agent of heavy metal contamination, it is characterized in that: it is made up of the raw material of following mass percent:
Silicate 36%
Silica powder 38%
Sodium lauryl sulphate 3%
Carbon dust 5%
Iron powder 6%
Starch 7%
Manganese oxide 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068246.2A CN103880305B (en) | 2014-02-27 | 2014-02-27 | A kind of firming agent for administering heavy metal pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068246.2A CN103880305B (en) | 2014-02-27 | 2014-02-27 | A kind of firming agent for administering heavy metal pollution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103880305A true CN103880305A (en) | 2014-06-25 |
| CN103880305B CN103880305B (en) | 2016-06-08 |
Family
ID=50949477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068246.2A Active CN103880305B (en) | 2014-02-27 | 2014-02-27 | A kind of firming agent for administering heavy metal pollution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103880305B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830622A (en) * | 2017-03-03 | 2017-06-13 | 中山朗清膜业有限公司 | A kind of sludge conditioner and dewatering based on Zero-valent Iron silicate systems |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725993A (en) * | 2008-10-29 | 2010-06-09 | 映诚股份有限公司 | Method for treating incinerated fly ash with harmful heavy metals |
| CN101885584A (en) * | 2010-07-20 | 2010-11-17 | 刘阳生 | Method for treating waste incineration fly ash by electric melting |
| CN103521171A (en) * | 2013-10-10 | 2014-01-22 | 湖南省地质科学研究院 | Composite rock- and mineral- repairing agent for cadmium pollution and preparation method of the repairing agent |
-
2014
- 2014-02-27 CN CN201410068246.2A patent/CN103880305B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725993A (en) * | 2008-10-29 | 2010-06-09 | 映诚股份有限公司 | Method for treating incinerated fly ash with harmful heavy metals |
| CN101885584A (en) * | 2010-07-20 | 2010-11-17 | 刘阳生 | Method for treating waste incineration fly ash by electric melting |
| CN103521171A (en) * | 2013-10-10 | 2014-01-22 | 湖南省地质科学研究院 | Composite rock- and mineral- repairing agent for cadmium pollution and preparation method of the repairing agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830622A (en) * | 2017-03-03 | 2017-06-13 | 中山朗清膜业有限公司 | A kind of sludge conditioner and dewatering based on Zero-valent Iron silicate systems |
| CN106830622B (en) * | 2017-03-03 | 2019-11-08 | 中山朗清膜业有限公司 | It is a kind of based on Zero-valent Iron-silicate systems mud dewatering method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103880305B (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103922698B (en) | Ceramsite prepared by using smelting wastes, and preparation method thereof | |
| CN100545115C (en) | Utilize steel slag tailing slurry slag cement of steel slag ball-milling tail mud production and preparation method thereof | |
| CN105399349B (en) | A kind of high activity steel ground-slag and preparation method thereof | |
| CN106966621A (en) | A kind of method that electroplating sludge prepares baking-free ceramicite | |
| CN107188442B (en) | A kind of trade waste base geological polymer and preparation method thereof | |
| CN105967266A (en) | Efficient sewage treatment agent and preparation method thereof | |
| CN107010853B (en) | A kind of method that microwave synergy is activated S95 grade slag powder | |
| CN110950607B (en) | High-strength baking-free ceramsite and preparation method and application thereof | |
| CN106904924A (en) | The system and method for 3D printing material is built using municipal waste and Industrial Solid Waste | |
| CN106396454A (en) | Slag grinding aid and preparation method and application thereof | |
| CN111393083A (en) | Full-solid-waste high-performance concrete and preparation method and application thereof | |
| CN104399222B (en) | Composite biomass charcoal domestic garbage incineration flyash processing stabilizer and preparation method thereof | |
| CN108455885B (en) | Composite portland cement and preparation method and application thereof | |
| CN107311539A (en) | A kind of building waste is non-burning brick and preparation method thereof | |
| CN105254314B (en) | A kind of refractory brick and preparation method thereof | |
| CN113929330B (en) | Method for obtaining solid waste proportion of matrix and preparing alkali-activated cementing material | |
| CN104232100A (en) | Chromium-polluted soil modifier | |
| CN106116202B (en) | High-performance water cement grinding aids and its preparation and application method containing waste vegetable oil | |
| CN106277894A (en) | A kind of environmental protection early-strength graphene oxide cement grinding aid and preparation method thereof | |
| CN103880305A (en) | Curing agent for treatment of heavy metal pollution | |
| CN104710123B (en) | A kind of modified diethanol monoisopropanolamine salt solution cement grinding aids | |
| CN106630712A (en) | Water-resistant building gypsum powder prepared from copper-containing sludge biological leaching residues and preparation method thereof | |
| CN101343156B (en) | Method for improving quality of fly ash concrete blending material | |
| CN108358664B (en) | Cementing material prepared from fly ash and preparation method thereof | |
| CN102092985B (en) | Treatment method for modifying money printing ink waste liquid into cement or concrete admixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |