CN108863116A - The efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag for dewatered sludge residue - Google Patents
The efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag for dewatered sludge residue Download PDFInfo
- Publication number
- CN108863116A CN108863116A CN201810794321.1A CN201810794321A CN108863116A CN 108863116 A CN108863116 A CN 108863116A CN 201810794321 A CN201810794321 A CN 201810794321A CN 108863116 A CN108863116 A CN 108863116A
- Authority
- CN
- China
- Prior art keywords
- sludge
- polymer
- sludge residue
- residue
- geo
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention belongs to resource and environment field, provides a kind of dewatered sludge residue and the efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag.Using sludge residue as raw material, carry out high temperature pretreatment to dewatered sludge residue as alkali-activator using the mixed solution of NaOH and sodium metasilicate is more advantageous to it and prepares geo-polymer the present invention for reducing the partial size of sludge residue.The present invention realizes geo-polymer to the efficient solidification (Cu, Zn, Ni, Pb and Cd curing degree up to 95% or more) of heavy metal in dewatered sludge residue, can provide Technical Reference for the innoxious and resource utilization of municipal residual sludge.The dewatered sludge residue additive amount that can be achieved to prepare high-intensitive geo-polymer (compression strength >=89Mpa) is≤20%.
Description
Technical field
The invention belongs to resource and environment field, provides a kind of dewatered sludge residue and preparation is blended with granulated blast-furnace slag
The efficient fixing means of geo-polymer and Heavy Metals in Sludge.
Background technique
The excess sludge that municipal sewage treatment generates is considered as valuable resource, and resource utilization is current research heat
Point.However, the leaching of these heavy metals will generally rich in poisonous and harmful heavy metallics such as Zn, Cu, Cr, Cd, Ni, Pb in sludge
Serious harm is generated to natural environment.Therefore, before carrying out excess sludge resource utilization, it is necessary to contained in sludge
Heavy metal is solidified, to reduce risk of environmental pollution.So far, common immobilization of heavy metals method includes：Cement solidification method,
Lime solidification method, the encapsulated solidification method of moulding, melting and solidification method and ground polymers solidification method etc..
(1) cement solidification method
Cement solidification heavy metal is one of most widely used curing technology, will contain heavy metal solid waste and mix with cement
The solidifying body for being formed and there is some strength is closed, heavy metal is wrapped up and reduces leaching risk.The technical treatment is at low cost, relative at
It is ripe, it is not necessarily to pre-treatment, there is very strong economy.
(2) lime solidification method
Lime curing heavy metal is that have the powder of volcano ash effect as substrate pair in lime, cement flue Dust and slag etc.
The method that heavy metal carries out curing process, material used is cheap, operate it is relatively easy, without special equipment and technology,
Processing cost is low.
(3) the encapsulated curing technology of moulding
The organic plastics that moulding encapsulation process curing heavy metal can soften and harden repeatedly when being using heating and cooling is (as dripped
Blueness, polyethylene etc.) it is mixed at relatively high temperatures with the solid waste containing heavy metal after dry or dehydration, realize that heavy metal is solid
The method of change.The leaching risk of heavy metal is lower in the solidified body obtained using this method, also has good resistance to aqueous solution
It is a kind of curing technology of very attractive higher-security every property.
(4) melting and solidification method
Melting and solidification is to mix heavy metal waste with tiny cullet matter, and then melting forms fine and close knot at high temperature
The glass solidified body of structure.The solidified body that this curing technology is formed works well, radioactive waste and play in processing high dose
It is widely used in terms of toxic waste.
(5) geo-polymer solidification method
Geo-polymer solidification refers to solid waste containing heavy metal and certain granulating alkali-activated carbonatite active materials (including powder
Coal ash, blast furnace residue, metakaolin, kaolinite clay and red mud etc.) method that is mixed with geo-polymer cementitious material, from
And realize the solidification of heavy metal.
The prior art is primarily present following defect：
(1) when solidified cement body is more containing salt, there are risk of rupture, largely can dramatically increase solidified body using cement
Volume and quality, secondary treatment need to occupy a large amount of soils, often beyond the own vol of heavy metal waste.
(2) can be there are many pore inside the solidified body that lime is formed after solidifying, compressive strength of solidified body is lower, impervious
It can not be high, it is possible to lead to the evolution of water-soluble heavy metal；Reaction temperature is high, curing time is long, there is biggish volume expansion, increases
The difficulty cleared and disposed is added.
(3) energy consumption is high with melting and solidification method, operating cost is high for moulding material solidification method, and what is be applicable in is discarded containing heavy metal
The type of object is relatively limited.
(4) the current many places of geo-polymer curing technology are used to prepare the glue of geo-polymer in the laboratory research stage
Gel material and alkali-activator are different, the characteristic and compression strength significant difference of prepared geo-polymer, ground polymers solidified body
Amount of the mechanical property generally with the sludge residue adulterated be inversely proportional, sludge residue incorporation is bigger, the mechanical property of solidified body
It can be poorer.
(5) in geo-polymer solidified body the doping of sludge residue whether to the compression strength and a huge sum of money of geo-polymer
The solidification effect of category, which exists, to be significantly affected, still unknown, how to improve simultaneously geo-polymer solidified body mechanical strength and
Its curing degree to Heavy Metals in Sludge, needs to be studied.
In addition, such as CN201710881157.3 one kind realizes a huge sum of money in sludge incineration residue by preparing geo-polymer
Belong to efficiently fixed method.The present invention is obtained by deploying the ratio of different sludge incineration residues and gel rubber material metakaolin
Heavy metal efficiently cured best sludge incineration residue additive amount (≤10%) can be achieved, using curing method of the invention, Cu,
The optimal curing degree of Zn has reached 95%；The curing degree of Cr, Ni, Pb are 90% or more.But sludge incineration residue additive amount is also
There are limited.
Summary of the invention
In view of the problems existing in the prior art, the present invention is achieved through the following technical solutions：
The method for preparing geo-polymer is blended with granulated blast-furnace slag for a kind of dewatered sludge residue, including：
(1) using sludge residue as raw material, sludge residue is carried out using the mixed solution of NaOH and sodium metasilicate as alkali-activator
High temperature pretreatment；
(2) it using granulated blast-furnace slag as gel rubber material, is pre-processed by alkali-activator and step (1) high temperature of waterglass
Dewatered sludge residue obtained is mixed, and prepared geo-polymer is obtained.
The step (1) is used to reduce the partial size of sludge residue, is more advantageous to it and prepares geo-polymer.
As a preferred solution of the present invention, with excess sludge, resulting sludge residue is original after 105 DEG C of desiccation 12h
Material.
As a kind of specific embodiment of the invention, this experiment sludge residue used is at China Shenzhen sewage
Factory is managed, selection is secondary settling tank excess sludge.Moisture percentage in sewage sludge is 84.3%, and ash content (dry sample) content is 46.72%, volatile matter
Content is 53.27%, containing the heavy metals such as Cu, Zn, Cr, Ni, Pb and Cd in sludge, content be respectively 1077.52mg/kg,
2726.11mg/kg, 89.34mg/kg, 92.85mg/kg, 7059.22mg/kg and 393.36mg/kg.
Carrying out drying to water-containing sludge is the precondition for being used to prepare geo-polymer, and the pressure resistance of ground polymers can be improved
Degree.
As a preferred solution of the present invention, the step (1) is using the mixed solution of NaOH and sodium metasilicate as alkali-activated carbonatite
Agent carries out high temperature pretreatment to dewatered sludge residue, and the mass ratio of the alkali-activator and sludge residue is preferably 1:3.Pass through this
Invention is a large amount of to test discovery, the mass ratio (1 of alkali-activator and sludge residue selected by the present invention:3) relative to other reports
1 described in road:5 ratio is more advantageous to the geo-polymer for preparing high compressive strength.
As a preferred solution of the present invention, high temperature pretreatment uses maturing temperature for 900 DEG C, and soaking time is
3.5h, for reducing the partial size of sludge residue.A large amount of experiment discovery through the invention, roasts 3.5h, base under the conditions of 900 DEG C
Originally it can guarantee that organic matter whole carbonated transition is ash content in sludge, while significantly reduce the content of crystal in residue, be conducive to
Reduce hole in prepared geo-polymer, the compression strength of enhancing ground polymers.
The result shows that, using preferred embodiment above-mentioned, the average grain diameter of dewatered sludge residue is obvious through a large number of experiments
It reduces, by 3.39~16.13 μm before pre-processing, the 33.96~39.25nm that is reduced to that treated, it is high to be more advantageous to participation preparation
Intensity geo-polymer.
As a preferred solution of the present invention, in the step (2), on the basis of completion sludge residue is pretreated,
Using granulated blast-furnace slag as gel rubber material, using waterglass as alkali-activator, according to (1) silicate content (%), (2) waterglass mould
Number (SiO2/Na2O, mol/mol) and (3) dewatered sludge residue additive amount (%) mixed, by a large amount of the study found that
When silicate content, modulus of water glass and dewatered sludge residue additive amount are respectively 82.5%, 1.3 and 20%, geology polymerization
The maximum value of the compression strength of object is 89.03MPa.
A large amount of experiment discovery through the invention, using this processing step, be significantly higher than reported in correlative study with dirt
Mud incineration residue is the compression strength (4~9MPa) of the geo-polymer of raw material preparation.
As a preferred solution of the present invention, aforementioned three kinds of material mixing methods are preferably：After slag and pretreatment
Sludge residue by aforementioned proportion be added stirred tank in, be added alkali-activator sodium silicate, activate 5min, then by
Stirred tank is placed on cement mortar mixer, is first mixed slowly 2min, deionized water is slowly added in whipping process, then quickly
Stir 3min.Slurry after stirring is poured into the steel cube mold of 30mm*30mm*30mm, mold is put in cement gel
It is vibrated 50 times on sand plain bumper, scrapes flat surface, place 1d at room temperature, ground polymers sample is put into cement standard by mold of dismantling
Curing box carries out maintenance 28d under the conditions of 25 DEG C, humidity 100%.
Another object of the present invention is the provision of a kind of efficient fixing means of Heavy Metals in Sludge, poly- by aforementioned geology
The preparation for closing object, realizes the efficient fixation of sludge heavy-metal.The good solidification of heavy metal is realized by the curing method, it is excellent
In traditional method.
Compared with the prior art, the beneficial effects of the invention include：
(1) present invention is blended with granulated blast-furnace slag by dewatered sludge residue and has prepared high-intensitive geo-polymer,
And realize geo-polymer in dewatered sludge residue heavy metal it is efficient solidification (Cu, Zn, Ni, Pb and Cd curing degree reach
95% or more), Technical Reference can be provided for the innoxious and resource utilization of municipal residual sludge.The high-intensitive ground of preparation can be achieved
The dewatered sludge residue additive amount of matter polymer (compression strength >=89Mpa) is≤20%；This is CN201710881157.3 hair
The optimum doping amount of the sludge incineration residue for being used to prepare geo-polymer described in bright is 2 times of 10%, illustrates the present invention
The method has breakthrough in recycling sludge use aspects compared with CN201710881157.3.
(2) when dewatered sludge residue additive amount is 20%, prepared geo-polymer to Cu, Zn in sludge residue, Ni,
The curing degree of Pb and Cd is between 95.13%~99.99%.
(3) in CN201710881157.3 invention, when sludge incineration residue doping reaches 20%, heavy metals immobilization effect
Fruit drops to 75%~88%, and of the present invention, when the doping of dewatered sludge residue is 20%, geo-polymer counterweight
Ni metal, Zn, Ni, Pb and Cd curing degree be in 95.13%~99.99% between, be significantly higher than the former, this illustrates the present invention
The method has breakthrough at the innoxious aspect of Heavy Metals in Sludge compared with CN201710881157.3.
Detailed description of the invention
Fig. 1, the microstructure of (1a) (1b) dewatered sludge residue afterwards before base pretreatment；
Fig. 2, silicate content (2a), modulus of water glass (2b) and dewatered sludge residue additive amount (2c) are to geo-polymer
The influence of compression strength.
Specific embodiment
The present invention is explained the present invention by following specific embodiments and attached drawing, but not limited to this.
Embodiment 1
(1) using excess sludge, resulting sludge residue is raw material after 105 DEG C of desiccation 12h, with the mixed of NaOH and sodium metasilicate
Closing solution is that dewatered sludge residue, (mass ratio of alkali-activator and sludge residue is 1 to alkali-activator:3) high temperature pretreatment is carried out
(maturing temperature is 900 DEG C, soaking time 3.5h), for reducing the partial size of sludge residue, makes it be more advantageous to preparation geology
Polymer.
As shown in Figure 1, the experimental results showed that, the average grain diameter of dewatered sludge residue is substantially reduced, before pre-processing
3.39~16.13 μm of 33.96~39.25nm that are reduced to that treated, are more advantageous to participation and prepare high-intensitive geo-polymer.
(2) on the basis of completion sludge residue is pretreated, using granulated blast-furnace slag as gel rubber material, using waterglass as alkali
Exciting agent, according to (1) silicate content (%), (2) modulus of water glass (SiO2/Na2O, mol/mol) and (3) dewatered sludge it is residual
Slag additive amount (%) is mixed.
As shown in Fig. 2, influence to prepared geo-polymer compression strength it is found that dewatered sludge residue additive amount
Influence compared with silicate content in waterglass and modulus of water glass to geo-polymer compression strength is bigger.When silicate content,
When modulus of water glass and dewatered sludge residue additive amount are respectively 82.5%, 1.3 and 20%, the compression strength of geo-polymer
Maximum value be 89.03MPa, be significantly higher than reported in correlative study using sludge incineration residue be raw material prepare geology polymerization
The compression strength (4~9MPa) of object.
Embodiment 2
By 5g dewatered sludge residue and preparation-obtained 5g geo-polymer (the dewatered sludge residue of 1 step of embodiment (1)
Additive amount is 20%) to be dissolved in 0.1L leaching agent (solid-to-liquid ratio 1 respectively:20) in, gained heavy metal Cu, Zn, Cr, Ni, Pb and Cd
Leaching concentration and curing efficiency are as shown in table 1.
Curing degree of 1 geo-polymer of table to heavy metal in dewatered sludge residue
As it can be seen from table 1 the prepared geo-polymer of this research polymers to Pb, the Zn leached in sludge residue and
The curing degree of Cu has reached 95% or more, and at the same time, the curing degree of Ni and Pb also all 90% or more, significantly reduce dirt
The leaching pollution risk of heavy metal in mud residue is the minimizing for realizing sludge residue, innoxious and recycling effective way.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (7)
1. the method for preparing geo-polymer is blended with granulated blast-furnace slag for a kind of dewatered sludge residue, which is characterized in that including：
(1) using sludge residue as raw material, high temperature is carried out to sludge residue using the mixed solution of NaOH and sodium metasilicate as alkali-activator
Pretreatment；
(2) it using granulated blast-furnace slag as gel rubber material, pre-processes and is made by alkali-activator and step (1) high temperature of waterglass
Dewatered sludge residue mixed, obtain prepared geo-polymer.
2. the method according to claim 1, which is characterized in that with excess sludge after 105 DEG C of desiccation 12h resulting sludge residue
For raw material.
3. the method according to claim 1, which is characterized in that the step (1) is using the mixed solution of NaOH and sodium metasilicate as alkali
Exciting agent carries out high temperature pretreatment to dewatered sludge residue, and the mass ratio of the alkali-activator and sludge residue is preferably 1:3.
4. any one of -3 method according to claim 1, which is characterized in that the high temperature pretreatment uses maturing temperature for 900
DEG C, soaking time 3.5h, for reducing the partial size of sludge residue.
5. any one of -3 method according to claim 1, which is characterized in that be solidifying with granulated blast-furnace slag in the step (2)
Glue material, using waterglass as alkali-activator, according to (1) silicate content (%), (2) modulus of water glass (SiO2/Na2O, mol/
Mol) and (3) dewatered sludge residue additive amount (%) is mixed, and silicate content, modulus of water glass and dewatered sludge are residual
Slag additive amount is respectively 82.5%, 1.3 and 20%.
6. according to the method described in claim 5, it is characterized in that, slag and pretreated sludge residue are pressed the proportion
It is added in stirred tank, alkali-activator is added, activate 5min, then stirred tank is placed on cement mortar mixer, first at a slow speed
2min is stirred, deionized water is slowly added in whipping process, then quickly stirring 3min；Slurry after stirring is poured into 30mm*
In the steel cube mold of 30mm*30mm, mold is put on cement mortar plain bumper and is vibrated 50 times, flat surface is scraped, in room
Temperature is lower to place 1d, and ground polymers sample is put into cement standard curing box by mold of dismantling, and at 25 DEG C, is carried out under the conditions of humidity 100%
Conserve 28d.
7. a kind of efficient fixing means of Heavy Metals in Sludge, which is characterized in that including：Pass through the system of aforementioned geo-polymer
It is standby, realize the efficient fixation of sludge heavy-metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810794321.1A CN108863116A (en) | 2018-07-19 | 2018-07-19 | The efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag for dewatered sludge residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810794321.1A CN108863116A (en) | 2018-07-19 | 2018-07-19 | The efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag for dewatered sludge residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108863116A true CN108863116A (en) | 2018-11-23 |
Family
ID=64303448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810794321.1A Pending CN108863116A (en) | 2018-07-19 | 2018-07-19 | The efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag for dewatered sludge residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108863116A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102477A (en) * | 2021-03-16 | 2021-07-13 | 江苏亿金环保科技有限公司 | Treatment method of chromium-polluted soil |
| CN113248179A (en) * | 2021-06-03 | 2021-08-13 | 中建西部建设建材科学研究院有限公司 | Baking-free stable-curing heavy metal phase-change light aggregate and preparation method thereof |
| CN113562997A (en) * | 2021-07-30 | 2021-10-29 | 上海国惠环境科技股份有限公司 | Method for producing geopolymer by using sludge incineration ash |
| CN114460063A (en) * | 2020-11-09 | 2022-05-10 | 辽宁工程技术大学 | Method for quantitatively analyzing reaction degree of pulverized coal ash geopolymer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500580A (en) * | 2017-09-26 | 2017-12-22 | 深圳大学 | A kind of method for realizing that heavy metal is efficiently fixed in sludge incineration residue by preparing geo-polymer |
-
2018
- 2018-07-19 CN CN201810794321.1A patent/CN108863116A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500580A (en) * | 2017-09-26 | 2017-12-22 | 深圳大学 | A kind of method for realizing that heavy metal is efficiently fixed in sludge incineration residue by preparing geo-polymer |
Non-Patent Citations (2)
| Title |
|---|
| 张雷: ""矿渣-污泥残渣地质聚合物胶凝材料的制备及重金属固化效果的研究"", 《工程科技Ⅱ辑》 * |
| 许金余 等: "《地聚合物基快速修补材料的性能与应用》", 31 December 2017, 西北工业大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460063A (en) * | 2020-11-09 | 2022-05-10 | 辽宁工程技术大学 | Method for quantitatively analyzing reaction degree of pulverized coal ash geopolymer |
| CN114460063B (en) * | 2020-11-09 | 2023-10-03 | 辽宁工程技术大学 | Method for quantitatively analyzing reaction degree of pulverized fuel ash geopolymer |
| CN113102477A (en) * | 2021-03-16 | 2021-07-13 | 江苏亿金环保科技有限公司 | Treatment method of chromium-polluted soil |
| CN113248179A (en) * | 2021-06-03 | 2021-08-13 | 中建西部建设建材科学研究院有限公司 | Baking-free stable-curing heavy metal phase-change light aggregate and preparation method thereof |
| CN113562997A (en) * | 2021-07-30 | 2021-10-29 | 上海国惠环境科技股份有限公司 | Method for producing geopolymer by using sludge incineration ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108863116A (en) | The efficient fixing means for preparing geo-polymer and Heavy Metals in Sludge is blended with granulated blast-furnace slag for dewatered sludge residue | |
| Redden et al. | Microstructure, strength, and moisture stability of alkali activated glass powder-based binders | |
| CN110342862B (en) | Renewable baking-free filter material, and preparation method, application and regeneration method thereof | |
| Ji et al. | Synthesis and toxic metals (Cd, Pb, and Zn) immobilization properties of drinking water treatment residuals and metakaolin-based geopolymers | |
| CN107500580B (en) | Method for efficiently fixing heavy metals in sludge incineration residues by preparing geopolymer | |
| CN106082926B (en) | A kind of inorganic polymer sludge solidification mortar and preparation method thereof | |
| CN111346903A (en) | Method for solidifying and stabilizing heavy metal contaminated soil by taking fly ash as raw material | |
| CN113754364B (en) | Artificial aggregate based on muck sand washing tail mud and preparation method thereof | |
| Liu et al. | Novel recycling application of high volume municipal solid waste incineration bottom ash (MSWIBA) into sustainable concrete | |
| CN101805161A (en) | Bonding agent of baking-free bricks prepared from drilling well solid waste materials | |
| CN113735515A (en) | Geopolymer curing material based on fly ash and red mud and preparation method thereof | |
| CN111218287B (en) | Formula, method and application of combined remediation agent for heavy metals of tin and lead in soil | |
| CN110156426B (en) | Method for utilizing oyster shells as curing material for residual mud and muck | |
| KR100448330B1 (en) | artificial aggregate using fly-ashes and bottom-ashes and the production method using the same | |
| CN113956015A (en) | Household garbage incineration ash concrete and preparation method thereof | |
| CN110028973A (en) | A kind of heavy metal curing agent and its application based on polypropylene fibre and boiler ash | |
| Xue et al. | Investigation of the water resistance of non-sintered wrap-shell lightweight aggregates with high content solid waste and its application in water permeable bricks | |
| Dang et al. | Soil stabilization by using alkaline-activated ground bottom ash coupled with red mud | |
| CN109592925A (en) | A kind of building waste wallboard freeze thawing resistance additive and preparation method thereof | |
| Odion | Soil-Geopolymer Mixtures Using Fly Ash and Recycled Concrete Aggregates (RCA) forRoad Base and Subbase Layers | |
| CN109574603A (en) | The unburned product and preparation method thereof prepared with water base landwaste | |
| CN113860793B (en) | Bacteria-based harmless strengthening treatment method for solid waste incinerator residues | |
| CN115536331B (en) | Preparation method of cement pavement base material doped with waste circuit board nonmetallic material | |
| CN108083756A (en) | A kind of regeneration concrete and preparation method thereof | |
| CN114507036B (en) | Inactivated and sterilized basalt fiber modified concrete with high corrosion resistance and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |