CN102416395A - Method for quickly removing harmful substances in refuse incineration fly ash - Google Patents
Method for quickly removing harmful substances in refuse incineration fly ash Download PDFInfo
- Publication number
- CN102416395A CN102416395A CN2011100621183A CN201110062118A CN102416395A CN 102416395 A CN102416395 A CN 102416395A CN 2011100621183 A CN2011100621183 A CN 2011100621183A CN 201110062118 A CN201110062118 A CN 201110062118A CN 102416395 A CN102416395 A CN 102416395A
- Authority
- CN
- China
- Prior art keywords
- flying dust
- fly ash
- incineration fly
- garbage incineration
- clear water
- 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
- 239000010881 fly ash Substances 0.000 title claims abstract description 40
- 239000000126 substance Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 21
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 105
- 238000000605 extraction Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 10
- 230000001988 toxicity Effects 0.000 claims description 9
- 231100000419 toxicity Toxicity 0.000 claims description 9
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000008234 soft water Substances 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- 238000007655 standard test method Methods 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 239000007790 solid phase Substances 0.000 abstract description 6
- 239000007791 liquid phase Substances 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract 2
- 231100000331 toxic Toxicity 0.000 abstract 2
- 230000002588 toxic effect Effects 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000009775 high-speed stirring Methods 0.000 abstract 1
- -1 hydroxide ions Chemical class 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000004056 waste incineration Methods 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 14
- 239000000463 material Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 231100000770 Toxic Equivalency Factor Toxicity 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 206010019196 Head injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 239000010782 bulky waste Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- KNVAYBMMCPLDOZ-UHFFFAOYSA-N propan-2-yl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OC(C)C KNVAYBMMCPLDOZ-UHFFFAOYSA-N 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for quickly removing harmful substances in waste incineration fly ash. Then solid-liquid separation is carried out on the fly ash slurry, the waste liquid is treated by a waste water treatment device, the dehydrated fly ash is dried and crushed, finally, the dissolution value of the toxic characteristic dissolution program and the total value of dioxin of the crushed fly ash are detected, and if the toxic characteristic dissolution value is qualified, the crushed fly ash is harmless and can be reused; if not, returning to the step of preparing the fly ash. The invention uses clean water as an extracting agent to extract the garbage incineration fly ash under the conditions of low liquid-solid ratio and high-speed stirring, so that a large amount of fly ash substances are easy to release and high-concentration hydroxide ions are generated in a liquid phase, and solid-phase species such as fly ash harmful lead and the like are utilized to form water-soluble species, so that harmful substances in the garbage incineration fly ash can be quickly and effectively removed, and the purposes of harmlessness and reutilization of the fly ash are achieved.
Description
Technical field
The present invention is relevant with the processing technology field that the incineration of garbage produces harmful flying dust; More detailed is can heavy metal, dioxin material harmful in the garbage incineration fly ash be removed fast; Make and handle the back flying dust and detect and be lower than statutory standard, and become harmless and can utilize the method for the quick removal garbage incineration fly ash harmful substance of material again.
Background technology
The flying dust that rubbish produces after incineration process often is called garbage incineration fly ash.Because incinerate temperature often between 850-1050 ℃, the rubbish mid-boiling point incinerates the low heavy metal of temperature, promptly be prone to gasification, along with getting into, waste gas and flying dust incinerate in the empty dirty anti-control equipment of factory, and heavy metal condensation thereafter and majority are attached on the flying dust.In addition, if chlorinated organics etc. is arranged, incinerate and empty dirty prevent will having in the system process precursors synthetic (precursor synthesis) and synthetic (de novo synthesis) reaction again in the rubbish, the dioxin of formation trace, majority also invests on the flying dust with fixed attention.
Whether garbage incineration fly ash is harmful; Must assert the standard detection flying dust according to harmful cause discarded object: (1) toxicity characteristic stripping program (toxicity characteristic leaching procedure; TCLP) heavy metal concentration, and the total toxic equivalent concentration of (2) dioxin (being called for short the dioxin total amount).Domestic heavy metal concentration and the dioxin total amount of respectively incinerating the toxicity characteristic stripping program of factory's output flying dust of general regular detection; Mostly testing result is that lead exceedes the general statutory standard (like 5.0mg/L) of toxicity characteristic stripping program; Part then exceedes the statutory standard (like 1.0mg/L) of toxicity characteristic stripping program for cadmium (Cd), all the other heavy metal stripping values all are lower than toxicity characteristic stripping procedural rule standard.In addition, detect the dioxin total amount value of respectively incinerating factory's output flying dust and all be lower than general statutory standard (like 1.0ng I-TEQ/g).From the above, under environmental regulation now, garbage incineration fly ash all is that heavy metal exceedes due to the toxicity characteristic stripping procedural rule standard for harmful cause discarded object.
At present the processing mode of garbage incineration fly ash all will be harmful to flying dust and be cured/stabilization processes with cement and chemical stabilizer earlier, again the flyash curing thing will be transported to independently the sanitary landfilling field and bury.But this practice not only can't be utilized flying dust again, and increases volume of waste, the consumption landfill site confined space, the empty processing cost that increases; What is more, and the unreal or landfill site rainfall because of flyash curing is prone to cause harmful substance stripping in the flyash curing thing and pollutes the water and soil environment.Therefore; How no longer garbage incineration fly ash to be solidified and bury; And change with harmful substance in effective removal flying dust, make and handle the no HIC Head Injury Criterion (comprising the heavy metal stripping and the dioxin total amount standard that meet toxicity characteristic stripping program) that the back flying dust reaches rules, be the important topic that flying dust is marched toward and utilized.
The flying dust after the relevant rubbish of convention or incineration of other materials or the high-temperature process and the patent of end slag (bottom ash or bottom residue) treatment technology are a lot of; Do not give unnecessary details one by one here; Majority is the technology that adopts curing/stabilizing, gasification or high-temperature fusion, and its mechanism is respectively: mat immobilization and stabilisation medicament are difficult for stripping with the harmful substance immobilization of flying dust solid phase; Mat high temperature decomposes flying dust solid phase harmful substance or is converted into gaseous substance and shifts out; Except that mat high temperature decomposes flying dust solid phase harmful substance or is converted into gaseous substance and shifting out, goes back mat high temperature and make fusion of flying dust inorganic matter and then bag casket flying dust, therefore also be difficult for stripping.And the application inventor mainly is to adopt extraction mechanism to the treatment technology of flying dust; Be about to the flying dust harmful substance and be moved to liquid phase by solid phase and remove, ZL 200410102513.X " method that the heavy metal of fly ash derived from cremating disposables is removed " patent of invention that obtains like the application inventor's application.
Summary of the invention
Main purpose of the present invention is to provide a kind of method of quick removal garbage incineration fly ash harmful substance; Its process object be refuse incinerator incinerate the back output converge flying dust (promptly getting into the flying dust that converges before the cured equipment); Can be fast and effectively remove the flying dust harmful substance; Make the harmless flying dust after the processing can be, reach purpose zero discarded, resource reutilization as the raw material that utilizes again.
For reaching aforementioned purpose, the present invention adopts following technical scheme:
A kind of method of quick removal garbage incineration fly ash harmful substance comprises the following step at least:
Be on the waiting list flying dust and clear water: be on the waiting list converging flying dust and preparing required clear water of refuse incinerator's output that desire handles;
Stir extraction: under clear water and flying dust low liquid-solid ratio, clear water is added in the flying dust, and stir extraction;
Dipping extraction: flood the flying dust mud after the high rotating speed extraction, make that material continues to disengage from flying dust in the flying dust;
Separation of Solid and Liquid: the Separation of Solid and Liquid of flooding extraction back flying dust mud;
Oven dry: flying dust still contains moisture after the Separation of Solid and Liquid, so oven dry in advance;
Pulverize: the flying dust oven dry is prone to caking, and for the benefit of follow-up utilization again is so pulverize;
Detect: detect TCLP heavy metal stripping value and the dioxin total amount value of pulverizing flying dust; If qualified, then pulverize flying dust and be innocuous substance, can do follow-up utilization again; If not qualified, then return the step of being on the waiting list flying dust.
In above-mentioned step of being on the waiting list flying dust and clear water, flying dust is meant the flying dust that converges that the empty dirty anti-control equipment of refuse incinerator collects, and promptly gets into the flying dust that converges before the cured equipment.
In above-mentioned step of being on the waiting list flying dust and clear water, clear water is meant running water, distilled water or the water of handling through soft water.
In the step of above-mentioned stirring extraction, the weight ratio of clear water and flying dust (dry weight) is 2-5: 1, and speed of agitator is 500-1,500rpm, the time is 3-10 minute.
In the step of above-mentioned dipping extraction, the flying dust mud that stirs after extracting was left standstill 10-60 minute.
In the step of above-mentioned Separation of Solid and Liquid,, flying dust is separated with waste liquid with press filtration, vacuum filtration or centrifugal dewatering type.
In the step of above-mentioned oven dry, with the flying dust after 100-200 ℃ the temperature heating, drying Separation of Solid and Liquid.
In the step of above-mentioned pulverizing, the flying dust after will drying with the convention pulverizer is pulverized, and pulverizes the back particle size of fly ash less than 1.0mm.
In the step of above-mentioned detection, detection method and acceptance value standard test method and control value thereof by statute.
Beneficial effect of the present invention is:
The present invention utilizes inexpensive clear water as extractant; Fully use low liquid-solid ratio and high rotating speed operating condition; Heavy metal, dioxin material harmful in the garbage incineration fly ash are removed fast, and not only the processing time is short, cost is low, and it is all harmless to handle the back flying dust; Can be used as again the raw material that utilizes, reach purpose zero discarded, resource reutilization.
Description of drawings
Fig. 1 is the flow chart of the present invention's one preferred embodiment.
The specific embodiment
Below, lift now the present invention's one preferred embodiment and conjunction with figs. do detailed explanation as after, wherein:
See also shown in Figure 1ly, the method for the quick removal garbage incineration fly ash harmful substance of the present invention's one preferred embodiment mainly comprises the following step:
First step of the present invention is for being on the waiting list flying dust and clear water 100: with refuse incinerator, flying dust promptly is the flying dust that converges of being on the waiting list the empty dirty anti-control equipment collection of refuse incinerator, the water that clear water can be running water, distilled water or handles through soft water.
Second step of the present invention is for stirring extraction 110: clear water added in the flying dust, flying dust and clear water fully stirred with high-revolving alr mode, and flying dust is broken, extract.The weight ratio of clear water and flying dust (dry weight) is 2-5: 1, and speed of agitator is 500-1,500rpm, the time is 3-10min.This step mainly is to utilize high rotating speed to stir broken flying dust, makes that material disengages fast and in a large number in the flying dust, can bring into play the mechanism of quick mass transport (mass transfer); Alkalies and alkaline earth oxide and water reaction form a large amount of OH in the flying dust in addition
-Ion, because low liquid-solid ratio, so OH
-Ion concentration is high, impels most Pb in the flying dust, Zn amphoteric metal species and partial C d species, with OH
-Reaction forms soluble species and is moved to liquid phase, and other low heavy metal species of script concentration in the flying dust, the then easy sediment that forms hydroxide, this also is chemical reaction (chemical reaction) mechanism that the present invention intends utilization.
Third step of the present invention is dipping extraction 120: the flying dust mud that high rotating speed is stirred after extracting leaves standstill 10-60min, floods extraction.This step mainly is to make the material of broken flying dust continue to disengage and react, and especially this step can promote slower machine-processed the reaching of diffusion (diffusion) of reaction between solid-liquid.
The 4th step of the present invention is a Separation of Solid and Liquid 130: will flying dust be separated with waste liquid through the flying dust mud after the dipping extraction with press filtration, vacuum filtration or dewatering type such as centrifugal.This step mainly is to separate flying dust solids and waste liquid, the processing before doing to utilize again in order to the flying dust solids, and waste liquid is because of containing pollutant such as heavy metal, so must handle with sewage treatment equipment in addition.
The 5th step of the present invention is oven dry 140: with the flying dust after 100-200 ℃ the temperature heating, drying Separation of Solid and Liquid, to remove the moisture in the flying dust.
The 6th step of the present invention is for pulverizing 150: the flying dust after will drying with the convention disintegrating machine is pulverized, and pulverizing the back particle size of fly ash should be less than 1.0mm.The flying dust oven dry is prone to caking, and for the benefit of follow-up utilization again is so pulverize.
Final step of the present invention is for detecting 160: detect TCLP stripping value and the dioxin total amount value of pulverizing flying dust.If qualified, then pulverize flying dust and be the innocuous substance that can utilize again; If not qualified, then return the step of being on the waiting list flying dust and clear water 100.
In addition, the waste liquid after the Separation of Solid and Liquid because of containing pollutants such as heavy metal, is handled so should get into sewage treatment equipment.As for the dioxin of flying dust because of not soluble in water, acid and alkali; So the present invention utilizes high-speed stirred, broken flying dust, Separation of Solid and Liquid supervisor; Flying dust Central Plains has been lower than the micro-dioxin of statutory standard; What move in the waste water with waste water and superfine little colloid (colloid), and the dioxin of therefore handling back flying dust solids also is prone to be lower than statutory standard.
Below, be the flying dust that converges that incinerates factory with a certain bulky refuse of technical finesse of the present invention, the result is following:
Annotate :-for not detecting
By on can know that the present invention utilizes inexpensive clear water as extractant, fully use low liquid-solid ratio and high rotating speed operating condition, make that flying dust is broken to be prone to dissolve and produce high concentration OH
-, harmful species such as favourable Pb move to liquid phase by solid phase, and not only the processing time is short, cost is low, and it is all harmless to handle the back flying dust, can be used as the raw material that utilizes again, reaches purpose zero discarded, resource reutilization; Therefore, the present invention meets the important document of patent of invention really, files an application in the whence in accordance with the law.
Claims (9)
1. method of removing fast the garbage incineration fly ash harmful substance is characterized in that this method comprises following steps at least:
Be on the waiting list flying dust and clear water: be on the waiting list converging flying dust and preparing clear water of refuse incinerator's generation as extractant;
Stir extraction: clear water is added in the flying dust, flying dust and clear water are fully stirred with alr mode, and flying dust is broken, extract;
Dipping extraction: leave standstill the flying dust mud that stirs after extracting, flood extraction;
Separation of Solid and Liquid: flood the dehydration of extraction back flying dust mud, flying dust is separated with waste liquid;
Oven dry: the flying dust after the Separation of Solid and Liquid is dried;
Pulverize: will dry flying dust and pulverize; And
Detect: detect toxicity characteristic stripping program stripping value and the dioxin total amount value of pulverizing flying dust,, then pulverize flying dust and be the innocuous substance that can utilize again if qualified; If not qualified, then return the step of being on the waiting list flying dust and clear water.
2. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast; It is characterized in that; Be on the waiting list in the step of flying dust and clear water, flying dust is meant the flying dust that converges of the empty dirty anti-control equipment collection of refuse incinerator, promptly gets into the flying dust that converges before the cured equipment.
3. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, be on the waiting list in the step of flying dust and clear water, clear water is meant running water, distilled water or the water of handling through soft water.
4. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, stir in the step of extraction, the weight ratio of clear water and flying dust (dry weight) is 2-5: 1, and speed of agitator is 500-1,500rpm, the time is 3-10 minute.
5. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, in the step of dipping extraction, the flying dust mud that stirs after extracting was left standstill 10-60 minute.
6. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, in the step of Separation of Solid and Liquid,, flying dust is separated with waste liquid with press filtration, vacuum filtration or centrifugal dewatering type.
7. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, in the step of oven dry, with the flying dust after 100-200 ℃ the temperature heating, drying Separation of Solid and Liquid.
8. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, in the step of pulverizing, the flying dust after will drying with the convention pulverizer is pulverized, and pulverizes the back particle size of fly ash less than 1.0mm.
9. remove the method for garbage incineration fly ash harmful substance according to claim 1 fast, it is characterized in that, in the step of detection, detection method and acceptance value standard test method and control value thereof by statute.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99132445 | 2010-09-24 | ||
| TW99132445A TWI472356B (en) | 2010-09-24 | 2010-09-24 | Method for quickly removing hazardous matters from mswi fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102416395A true CN102416395A (en) | 2012-04-18 |
| CN102416395B CN102416395B (en) | 2014-11-19 |
Family
ID=45941185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110062118.3A Active CN102416395B (en) | 2010-09-24 | 2011-03-15 | Method for quickly removing harmful substances in refuse incineration fly ash |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102416395B (en) |
| SG (1) | SG179361A1 (en) |
| TW (1) | TWI472356B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084415A (en) * | 2014-07-02 | 2014-10-08 | 天津壹鸣环境工程有限公司 | Technology for reducing waste incineration fly ash via water logging pretreatment |
| CN104926167A (en) * | 2015-05-21 | 2015-09-23 | 天津城建大学 | Method for consolidating waste incineration fly ash heavy metal through microorganism cement mineralization |
| CN106363793A (en) * | 2016-08-26 | 2017-02-01 | 安徽盛运重工机械有限责任公司 | Fly ash solidifying treatment system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI789600B (en) * | 2020-06-29 | 2023-01-11 | 國立聯合大學 | Method for enhancing stabilization and detoxification of thermal treatment facilities collected powder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003086673A1 (en) * | 2002-04-17 | 2003-10-23 | Pbm Kabushiki Kaisha | Method and device for removing harmful substances |
| JP2006142228A (en) * | 2004-11-22 | 2006-06-08 | Miyoshi Oil & Fat Co Ltd | Solid waste disposal method |
| CN101462835A (en) * | 2008-09-01 | 2009-06-24 | 上海市固体废物处置中心 | Innocent treatment method and apparatus for refuse burning flyash |
| JP2009240952A (en) * | 2008-03-31 | 2009-10-22 | Sumitomo Osaka Cement Co Ltd | Waste treatment method |
| TW201013123A (en) * | 2008-09-16 | 2010-04-01 | Kun-Sen Chang | Detoxification method for heavy metal-containing incineration fly ash |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI349656B (en) * | 2007-07-03 | 2011-10-01 | Univ Tamkang | Process for stabilizing heavy metal in municipal solid waste incinerator ash and recycling the ash |
-
2010
- 2010-09-24 TW TW99132445A patent/TWI472356B/en active
-
2011
- 2011-03-15 CN CN201110062118.3A patent/CN102416395B/en active Active
- 2011-09-07 SG SG2011064177A patent/SG179361A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003086673A1 (en) * | 2002-04-17 | 2003-10-23 | Pbm Kabushiki Kaisha | Method and device for removing harmful substances |
| JP2006142228A (en) * | 2004-11-22 | 2006-06-08 | Miyoshi Oil & Fat Co Ltd | Solid waste disposal method |
| JP2009240952A (en) * | 2008-03-31 | 2009-10-22 | Sumitomo Osaka Cement Co Ltd | Waste treatment method |
| CN101462835A (en) * | 2008-09-01 | 2009-06-24 | 上海市固体废物处置中心 | Innocent treatment method and apparatus for refuse burning flyash |
| TW201013123A (en) * | 2008-09-16 | 2010-04-01 | Kun-Sen Chang | Detoxification method for heavy metal-containing incineration fly ash |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084415A (en) * | 2014-07-02 | 2014-10-08 | 天津壹鸣环境工程有限公司 | Technology for reducing waste incineration fly ash via water logging pretreatment |
| CN104926167A (en) * | 2015-05-21 | 2015-09-23 | 天津城建大学 | Method for consolidating waste incineration fly ash heavy metal through microorganism cement mineralization |
| CN106363793A (en) * | 2016-08-26 | 2017-02-01 | 安徽盛运重工机械有限责任公司 | Fly ash solidifying treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201212974A (en) | 2012-04-01 |
| SG179361A1 (en) | 2012-04-27 |
| CN102416395B (en) | 2014-11-19 |
| TWI472356B (en) | 2015-02-11 |
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