CN109575880A - A method of I type deicing salt is prepared using garbage flying ash - Google Patents
A method of I type deicing salt is prepared using garbage flying ash Download PDFInfo
- Publication number
- CN109575880A CN109575880A CN201811296082.3A CN201811296082A CN109575880A CN 109575880 A CN109575880 A CN 109575880A CN 201811296082 A CN201811296082 A CN 201811296082A CN 109575880 A CN109575880 A CN 109575880A
- Authority
- CN
- China
- Prior art keywords
- deicing salt
- filtrate
- flying ash
- type deicing
- garbage flying
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
- C09K3/185—Thawing materials
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of methods for preparing I type deicing salt using garbage flying ash, including washing, removing heavy-metal, decoloration, deliming, evaporative crystallization steps, the present invention is while to flying dust harmless treatment, it can turn waste into wealth, production obtains I type deicing salt of better economic benefit, moreover it is possible to obtain calcium carbonate or calcium sulfate product, greatly reduce the processing cost of flying dust, and treatment process non-wastewater discharge, energy conservation and environmental protection.
Description
Technical field
The present invention relates to environmental technology field, in particular to a kind of method for preparing I type deicing salt using garbage flying ash.
Background technique
With the rapid development of urbanization, China's domestic waste yield increases year by year, from 1.89 hundred million in 2013, on
2.06 hundred million tons of 2015 are raised to, since waste incineration has many advantages, such as volume reduction, decrement and energy recovery, so China's rubbish
Incineration disposal amount accounting increases year by year.Flying dust is the inevitable outcome of waste incineration, accounts about the 3 ~ 5% of the amount of burning away the refuse.Based on this
It calculates, the whole nation is since the flying dust of waste incineration generation is at 10000-20000 ton/days from now on.So a large amount of flying dust generates, so that such as
Safely and effectively disposition flying ash becomes environment urgently to be solved and social concern for what.
Flying dust is the thin particulate matter obtained by flue gas purification system collection, including with Chemical treatment flue gas when generates
Flying dust, 10%~20% is accounted for about in lime-ash.Generally in canescence or Dark grey, partial size is largely flying dust less than 300 μm
1.0 μm~30 μm, moisture content 10%~23%, clinker ignition loss 34%~51%, easy frost heave, hardly possible compacting, particle shape is in rodlike, more more
The irregular shapes such as cutin shape, flocculence, spherical.Meanwhile flying ash contains the nuisances such as dioxin and heavy metal, according to
" consumer waste incineration contamination control standard " (GB18485-2014) regulation: " domestic garbage incineration flyash should be by hazardous waste pipe
Reason ".Therefore, flying dust must be collected separately, and must not mix with house refuse, incineration residue etc., also must not be with other hazardous wastes
Mixing.
Currently, the main processing technique of incineration of refuse flyash has: cement solidification method, chemical agent stabilisation, melting and solidification
Method and cement kiln synergic processing method etc..
From economy, ease for operation and utilization of area etc. consider, cement solidification method be most suitable processing method it
One.External researcher has made many research to using cement solidification method processing flying dust, and this method is also external
For handling one of common method of flying dust.But increase-volume amount is big after cement solidification processing, and if contains obstruction water in flying dust
When the ingredient that mud normally condenses, it can often be cured the problems such as body intensity is low, harmful substance leaching rate is high.Cement class curing materials
It there are many type, is generally used according to the characteristic of flying dust and processing requirement classification, representative cement has ordinary cement and swollen
Swollen cement, is usually made of sial and calcium oxide.Cement fixation is exactly that cement and flying dust are uniformly mixed with water, and water occurs
Reaction is closed, is gradually hardened, poisonous metal is closed.In order to improve fixed effect, guarantees that cement can effectively complete hydration reaction, have
When additive appropriate need to be added into mixture according to the type of flying dust.The shortcomings that cement solidification method, is cement consumption
Greatly, soluble chlorine salt dissolving, sulfide in flying dust etc. can generate certain influence to the hydro-combination process of cement, lead to the place of flying dust
Reason effect is unstable, and the increase-volume and weight gain of solidified body are obvious after processing, increases the cost of disposal in later period.
The presence of the high concentration chloride contained in flying dust, villaumite can seriously limit the harmlessness disposing and recycling benefit of flying dust
With.How the villaumite in flying dust rationally utilize is to become urgent problem.
Summary of the invention
It is an object of the invention to solve the problems, such as a large amount of villaumites present in flying dust can not economic treatment, a kind of benefit is provided
The method for preparing I type deicing salt with garbage flying ash.
The technical solution adopted by the present invention to solve the technical problems is:
A method of I type deicing salt is prepared using garbage flying ash, comprising the following steps:
(1) it washes: garbage flying ash being put into washing pool and is washed, washing carries out under the conditions of stirring and continuing blowing air every time,
It is separated by solid-liquid separation after having washed every time, solid is washed next time, is washed 2-3 times in total；It is separated by solid-liquid separation after merging washing
Gained filtrate enters to be handled in next step；
(2) removing heavy-metal: under stirring condition, it is slowly added to sodium sulfide solution in gained filtrate one step up, until the oxygen of system
Until change reduction potential reaches 0 ~ -50mV, solution of ferrous chloride is then added, until the oxidation-reduction potential of system reaches -100
Until ~ -150mV；
(3) it decolourizes: adding active carbon into the filtrate after removing heavy-metal, activated carbon dosage is the one thousandth of filtrate weight to thousand
/ five, 3-10min is stirred, filtering is collected filter residue and stored as dangerous waste, and filtrate enters to be handled in next step；
(4) deliming: adding sodium carbonate or sodium sulphate in gained filtrate after to decoloration, stirs 10-20min, and solid part is collected in filtering
The calcium carbonate or calcium sulfate divided, filtrate enters to be handled in next step；
(5) evaporative crystallization: crystallization is evaporated to the filtrate after deliming, the Treated sewage reusing that evaporative crystallization obtains is in step (1)
Washing, separation crystallization obtain I type deicing salt after dry.
Conventional flying dust treatment process, can obtain a large amount of villaumite, but due to not meeting any product standard, still
It is a kind of danger wastes, economization utilization cannot be carried out, the present invention is off the beaten track, and garbage flying ash is made and meets melting for national standard
Agent is avenged, is effectively solved so that flying dust is handled, processing cost is reduced.
The present invention first washes garbage flying ash, and by soluble ion elution, insoluble solid is for manufacturing cement；
Then the heavy metals removal in eluent, decoloration, then deliming (deliming can remove most calcium ion) will be washed and produce carbonic acid
Calcium or calcium sulfate product are recycled, and are evaporated crystallization to the filtrate after deliming, and generating corresponding sodium chloride, (90% is left
It is right), (mixed salt of micro 0.5% or less), potassium chloride (10% or so), the mixed salt meet as defined in GB/T23851-2017 magnesium chloride
The standard of I type deicing salt, I type deicing salt have biggish market prospects, and the present invention is while to flying dust harmless treatment, energy
Turn waste into wealth, production obtains I type deicing salt of better economic benefit, moreover it is possible to obtain calcium carbonate or calcium sulfate product, substantially reduce
The processing cost of flying dust, and treatment process non-wastewater discharge；I type deicing salt prepared by the present invention, due to containing ion more
Complexity, therefore, Thaw performance are higher than sodium chloride, are lower than potassium chloride, can satisfy the needs of production and living.
It is collected above washing pool after escaping gas enters ammonia absorption tower absorption and forms ammonium hydroxide reuse to power plant's denitration.
Step is washed every time in (1), and the dosage of water is 1-3 times of garbage flying ash weight.
The mass concentration of sodium sulfide solution is 2-5% in step (2).
The mass concentration of solution of ferrous chloride is 3-10% in step (2).
The beneficial effects of the present invention are: the present invention while to flying dust harmless treatment, can turn waste into wealth, production is obtained
I type deicing salt of better economic benefit, moreover it is possible to calcium carbonate or calcium sulfate product are obtained, the processing cost of flying dust is greatly reduced,
And treatment process non-wastewater discharge, energy conservation and environmental protection.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be further explained in detail.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art.
Method in following embodiments is unless otherwise instructed the conventional method of this field.
Embodiment 1:
A method of I type deicing salt is prepared using garbage flying ash, comprising the following steps:
(1) it washes: garbage flying ash being put into washing pool and is washed, washing carries out under the conditions of stirring and continuing blowing air every time,
Washing every time, the dosage of water are 1 times of garbage flying ash weight, are separated by solid-liquid separation after having washed every time, solid carries out next time
Washing is washed 3 times in total；It is separated by solid-liquid separation gained filtrate after merging washing and enters processing in next step；Ease is collected above washing pool
Gas out, which enters after ammonia absorption tower absorbs, forms ammonium hydroxide reuse to power plant's denitration.
(2) removing heavy-metal: under stirring condition, sodium sulfide solution (mass concentration is slowly added in gained filtrate one step up
5%), until the oxidation-reduction potential of system reaches 0mV, solution of ferrous chloride (mass concentration 10%) is then added, until
Until the oxidation-reduction potential of system reaches -100mV；Frerrous chloride is for removing excessive vulcanized sodium.
(3) decolourize: adding active carbon into the filtrate after removing heavy-metal, activated carbon dosage be filtrate weight thousand/
One, 10min is stirred, filtering is collected filter residue and stored as dangerous waste, and filtrate enters to be handled in next step.
(4) deliming: adding sodium carbonate in gained filtrate after to decoloration, stirs 10min, and the carbon of solid portion is collected in filtering
Sour calcium, filtrate enters to be handled in next step.It can be processed into precipitated calcium carbonate utilization after the calcium carbonate of solid portion is dry.
(5) evaporative crystallization: crystallization is evaporated to the filtrate after deliming, the Treated sewage reusing that evaporative crystallization obtains is in step
(1) washing, separation crystallization obtain I type deicing salt after dry.
Embodiment 2:
A method of I type deicing salt is prepared using garbage flying ash, comprising the following steps:
(1) it washes: garbage flying ash being put into washing pool and is washed, washing carries out under the conditions of stirring and continuing blowing air every time,
Washing every time, the dosage of water are 3 times of garbage flying ash weight, are separated by solid-liquid separation after having washed every time, solid carries out next time
Washing is washed 2 times in total；It is separated by solid-liquid separation gained filtrate after merging washing and enters processing in next step；Ease is collected above washing pool
Gas out, which enters after ammonia absorption tower absorbs, forms ammonium hydroxide reuse to power plant's denitration.
(2) removing heavy-metal: under stirring condition, sodium sulfide solution (mass concentration is slowly added in gained filtrate one step up
2%), until the oxidation-reduction potential of system reaches -50mV, solution of ferrous chloride (mass concentration 3%) is then added, until
Until the oxidation-reduction potential of system reaches -150mV；Frerrous chloride is for removing excessive vulcanized sodium.
(3) decolourize: adding active carbon into the filtrate after removing heavy-metal, activated carbon dosage be filtrate weight thousand/
Five, 3min is stirred, filtering is collected filter residue and stored as dangerous waste, and filtrate enters to be handled in next step.
(4) deliming: adding sodium sulphate in gained filtrate after to decoloration, stirs 20min, and the sulphur of solid portion is collected in filtering
Sour calcium, filtrate enters to be handled in next step.
(5) evaporative crystallization: crystallization is evaporated to the filtrate after deliming, the Treated sewage reusing that evaporative crystallization obtains is in step
(1) washing, separation crystallization obtain I type deicing salt after dry.
Embodiment 3:
A method of I type deicing salt is prepared using garbage flying ash, comprising the following steps:
(1) it washes: garbage flying ash being put into washing pool and is washed, washing carries out under the conditions of stirring and continuing blowing air every time,
Washing every time, the dosage of water are 2 times of garbage flying ash weight, are separated by solid-liquid separation after having washed every time, solid carries out next time
Washing is washed 3 times in total；It is separated by solid-liquid separation gained filtrate after merging washing and enters processing in next step；Ease is collected above washing pool
Gas out, which enters after ammonia absorption tower absorbs, forms ammonium hydroxide reuse to power plant's denitration.
(2) removing heavy-metal: under stirring condition, sodium sulfide solution (mass concentration is slowly added in gained filtrate one step up
3%), until the oxidation-reduction potential of system reaches -25mV, solution of ferrous chloride (mass concentration 5%) is then added, until
Until the oxidation-reduction potential of system reaches -120mV；Frerrous chloride is for removing excessive vulcanized sodium.
(3) decolourize: adding active carbon into the filtrate after removing heavy-metal, activated carbon dosage be filtrate weight thousand/
Three, 6min is stirred, filtering is collected filter residue and stored as dangerous waste, and filtrate enters to be handled in next step.
(4) deliming: adding sodium sulphate in gained filtrate after to decoloration, stirs 15min, and the sulphur of solid portion is collected in filtering
Sour calcium, filtrate enters to be handled in next step.Calcium sulfate product is formed after the calcium sulfate of solid portion is dry to utilize.
(5) evaporative crystallization: crystallization is evaporated to the filtrate after deliming, the Treated sewage reusing that evaporative crystallization obtains is in step
(1) washing, separation crystallization obtain I type deicing salt after dry.
Through detecting, product of the invention meets the standard of I type deicing salt as defined in GB/T23851-2017.
The core of flying dust washing dechlorination of the present invention be solve the salt that contains in eluting water and generate can with standardizing according to
The standard of country or industry, is utilized as byproduct.The salt generated after many dechlorinations at present still falls within hazardous waste
Range of management waits and continues treatment and use, and the present invention thoroughly solves the problems, such as specification and closes target, further reduces dangerous useless
Object amount.
Economic benefit of the invention is divided to from the aspect of two:
1, merely for value, from the zeroth order value even negative value of hazardous waste, turn waste into wealth, it is huge for generating value.
2, from the point of view of data, flying dust source is different, and chlorinty is different, generally in 5%--15% or so, surveys according to 5% chlorinty
It calculates, the yield for obtaining I type deicing salt is probably 4% or so of flying dust weight, 1 ton about 300 yuan of deicing salt price or so.At year
10000 tons of flying dust are managed to get arriving 400 tons of deicing salt or so, is worth 120000 or so.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (5)
1. a kind of method for preparing I type deicing salt using garbage flying ash, which comprises the following steps:
(1) it washes: garbage flying ash being put into washing pool and is washed, washing carries out under the conditions of stirring and continuing blowing air every time,
It is separated by solid-liquid separation after having washed every time, solid is washed next time, is washed 2-3 times in total；It is separated by solid-liquid separation after merging washing
Gained filtrate enters to be handled in next step；
(2) removing heavy-metal: under stirring condition, it is slowly added to sodium sulfide solution in gained filtrate one step up, until the oxygen of system
Until change reduction potential reaches 0 ~ -50mV, solution of ferrous chloride is then added, until the oxidation-reduction potential of system reaches -100
Until ~ -150mV；
(3) it decolourizes: adding active carbon into the filtrate after removing heavy-metal, activated carbon dosage is the one thousandth of filtrate weight to thousand
/ five, 3-10min is stirred, filtering is collected filter residue and stored as dangerous waste, and filtrate enters to be handled in next step；
(4) deliming: adding sodium carbonate or sodium sulphate in gained filtrate after to decoloration, stirs 10-20min, and solid part is collected in filtering
The calcium carbonate or calcium sulfate divided, filtrate enters to be handled in next step；
(5) evaporative crystallization: crystallization is evaporated to the filtrate after deliming, the Treated sewage reusing that evaporative crystallization obtains is in step (1)
Washing, separation crystallization obtain I type deicing salt after dry.
2. a kind of method for preparing I type deicing salt using garbage flying ash according to claim 1, it is characterised in that: in water
It is collected above wash pool after escaping gas enters ammonia absorption tower absorption and forms ammonium hydroxide reuse to power plant's denitration.
3. a kind of method for preparing I type deicing salt using garbage flying ash according to claim 1, it is characterised in that: step
(1) it is washed every time in, the dosage of water is 1-3 times of garbage flying ash weight.
4. a kind of method for preparing I type deicing salt using garbage flying ash according to claim 1, it is characterised in that: step
(2) mass concentration of sodium sulfide solution is 2-5% in.
5. a kind of method for preparing I type deicing salt using garbage flying ash according to claim 1, it is characterised in that: step
(2) mass concentration of solution of ferrous chloride is 3-10% in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296082.3A CN109575880B (en) | 2018-11-01 | 2018-11-01 | Method for preparing I-type snow melting agent by utilizing garbage fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296082.3A CN109575880B (en) | 2018-11-01 | 2018-11-01 | Method for preparing I-type snow melting agent by utilizing garbage fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109575880A true CN109575880A (en) | 2019-04-05 |
| CN109575880B CN109575880B (en) | 2021-07-02 |
Family
ID=65921128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296082.3A Active CN109575880B (en) | 2018-11-01 | 2018-11-01 | Method for preparing I-type snow melting agent by utilizing garbage fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109575880B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408368A (en) * | 2019-07-24 | 2019-11-05 | 长安大学 | A kind of storage salt material preparation method |
| CN112893408A (en) * | 2021-01-20 | 2021-06-04 | 中洁蓝环保科技有限公司 | Method and system for producing salt by washing waste incineration fly ash to remove chlorine |
| CN113088258A (en) * | 2021-04-14 | 2021-07-09 | 神华准能资源综合开发有限公司 | Method for preparing snow-melting agent by using calcium-removing analytic solution |
| CN115160986A (en) * | 2022-06-27 | 2022-10-11 | 江苏天楹等离子体科技有限公司 | Method for preparing snow-melting agent from high-chloride high-acid wastewater |
| CN115254923A (en) * | 2022-08-04 | 2022-11-01 | 江山市虎鼎环保科技有限公司 | Method for preparing high-purity calcium sulfate from waste incineration fly ash |
| CN116199377A (en) * | 2023-02-23 | 2023-06-02 | 浙江大学 | Incineration fly ash resource utilization method for quality control of washing waste salt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817650A (en) * | 2010-05-04 | 2010-09-01 | 北京市琉璃河水泥有限公司 | Method for treating incinerated fly ash of domestic garbage with cooperation of cement kiln |
| CN102126837A (en) * | 2010-11-22 | 2011-07-20 | 北京新北水水泥有限责任公司 | Method for treating fly ash by water washing |
| CN105080936A (en) * | 2015-08-25 | 2015-11-25 | 湖州森诺膜技术工程有限公司 | Rubbish-fly-ash and cement-kiln cooperation treatment method |
| CN105107821A (en) * | 2015-08-25 | 2015-12-02 | 湖州森诺膜技术工程有限公司 | Co-processing and water reclamation method for garbage fly ash through cement kiln |
| CN105478438A (en) * | 2015-01-29 | 2016-04-13 | 湖州森诺膜技术工程有限公司 | Method for synergistic treatment and harmless cyclic utilization of refuse fly ash by using cement kiln |
| CN108607870A (en) * | 2018-04-26 | 2018-10-02 | 丁仲军 | A kind of garbage flying ash processing system and treatment process |
-
2018
- 2018-11-01 CN CN201811296082.3A patent/CN109575880B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817650A (en) * | 2010-05-04 | 2010-09-01 | 北京市琉璃河水泥有限公司 | Method for treating incinerated fly ash of domestic garbage with cooperation of cement kiln |
| CN102126837A (en) * | 2010-11-22 | 2011-07-20 | 北京新北水水泥有限责任公司 | Method for treating fly ash by water washing |
| CN105478438A (en) * | 2015-01-29 | 2016-04-13 | 湖州森诺膜技术工程有限公司 | Method for synergistic treatment and harmless cyclic utilization of refuse fly ash by using cement kiln |
| CN105080936A (en) * | 2015-08-25 | 2015-11-25 | 湖州森诺膜技术工程有限公司 | Rubbish-fly-ash and cement-kiln cooperation treatment method |
| CN105107821A (en) * | 2015-08-25 | 2015-12-02 | 湖州森诺膜技术工程有限公司 | Co-processing and water reclamation method for garbage fly ash through cement kiln |
| CN108607870A (en) * | 2018-04-26 | 2018-10-02 | 丁仲军 | A kind of garbage flying ash processing system and treatment process |
Non-Patent Citations (2)
| Title |
|---|
| 李登新: "《固体废物处理与处置》", 31 July 2014 * |
| 薛自义，等: "《制盐工业手册》", 28 February 1994 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408368A (en) * | 2019-07-24 | 2019-11-05 | 长安大学 | A kind of storage salt material preparation method |
| CN112893408A (en) * | 2021-01-20 | 2021-06-04 | 中洁蓝环保科技有限公司 | Method and system for producing salt by washing waste incineration fly ash to remove chlorine |
| CN113088258A (en) * | 2021-04-14 | 2021-07-09 | 神华准能资源综合开发有限公司 | Method for preparing snow-melting agent by using calcium-removing analytic solution |
| CN115160986A (en) * | 2022-06-27 | 2022-10-11 | 江苏天楹等离子体科技有限公司 | Method for preparing snow-melting agent from high-chloride high-acid wastewater |
| CN115254923A (en) * | 2022-08-04 | 2022-11-01 | 江山市虎鼎环保科技有限公司 | Method for preparing high-purity calcium sulfate from waste incineration fly ash |
| CN116199377A (en) * | 2023-02-23 | 2023-06-02 | 浙江大学 | Incineration fly ash resource utilization method for quality control of washing waste salt |
| CN116199377B (en) * | 2023-02-23 | 2023-12-08 | 浙江大学 | Incineration fly ash resource utilization method for quality control of washing waste salt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109575880B (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109575880A (en) | A method of I type deicing salt is prepared using garbage flying ash | |
| CN109396163B (en) | Garbage fly ash treatment process for improving chloride ion dissolution rate | |
| CN106282585B (en) | A kind of detoxification classification resource utilization method of domestic garbage incineration flyash | |
| CN109396162B (en) | Energy-saving treatment process of garbage fly ash | |
| CN106082646B (en) | The method for cooperateing with melting to prepare glass sand with domestic garbage incineration flyash using electroplating sludge | |
| CN109133472A (en) | Garbage flying ash resource utilization treatment process | |
| WO2019034011A1 (en) | Stable harmlessness treatment method for fly ash in waste incineration | |
| CN104070054A (en) | Waste incineration fly ash sintering reduction treatment technique | |
| CN104152206A (en) | Recycling treatment method of fly ash, chromium slag and electroplating sludge dangerous waste | |
| CN101972766A (en) | Refuse incineration fly ash solidification/stabilization treatment method | |
| CN107188361A (en) | A kind of method for being sustained vulcanizing agent and preparation method thereof and sustained release vulcanizing agent for purifying heavy metal and arsenic in acid solution | |
| CN102218428A (en) | Treatment method of arsenic slag | |
| CN112169246A (en) | Inorganic composite stabilizer for heavy metal in waste incineration fly ash and stabilizing and curing method thereof | |
| CN113955787B (en) | Process for removing dioxin from fly ash | |
| CN113492147B (en) | Recycling treatment process for fly ash in waste incineration plant | |
| WANG et al. | Environmental risk for application of ammonia-soda white mud in soils in China | |
| CN109647850A (en) | The processing system of collaboration processing incineration of refuse flyash and garbage leachate | |
| CN104324931A (en) | Solidifying/stabilizing treatment method for waste incineration fly ash | |
| CN112979190A (en) | Method for catalytically treating waste incineration fly ash by utilizing electrolytic manganese residues | |
| CN109251729A (en) | A method of I type and II type deicing salt are prepared simultaneously using garbage flying ash | |
| CN102816933B (en) | Treatment process method of chrome slag | |
| CN218798139U (en) | Waste incineration fly ash and waste sulfuric acid co-processing and utilizing equipment | |
| CN109054750B (en) | Process for preparing snow-melting agent by utilizing garbage fly ash | |
| Du et al. | Application of dirty-acid wastewater treatment technology in non-ferrous metal smelting industry: Retrospect and prospect | |
| AU2021104221A4 (en) | Method for improving desulfurization efficiency of electrolytic manganese ore/slag slurry |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |