CN110054203A - A kind of method of resource of industrial waste salt - Google Patents
A kind of method of resource of industrial waste salt Download PDFInfo
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- CN110054203A CN110054203A CN201910297362.4A CN201910297362A CN110054203A CN 110054203 A CN110054203 A CN 110054203A CN 201910297362 A CN201910297362 A CN 201910297362A CN 110054203 A CN110054203 A CN 110054203A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
- C01D3/08—Preparation by working up natural or industrial salt mixtures or siliceous minerals
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/16—Purification
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
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- Engineering & Computer Science (AREA)
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Geochemistry & Mineralogy (AREA)
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- Processing Of Solid Wastes (AREA)
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Abstract
The invention belongs to the processing disposal fields of industrial solid wastes, it specifically discloses a kind of with sodium sulphate or the method for resource of sodium chloride industrial waste salt as main component, above-mentioned method of resource specifically: a certain amount of industrial waste salt is taken to be dissolved in the water, it is sufficiently dissolved under the synergy of ultrasound and stirring, obtains the salting liquid A close to saturation；Salting liquid A is subjected to double-filtration purification, the insoluble impurities in salting liquid A is removed, obtains salting liquid B；Salting liquid B is sent into spray burning furnace, lower than salt fusing point at a temperature of by the dissolved organic matter pyrolitic oxidation in salting liquid B after be discharged with vapor, finally obtain dry sodium salt product.The method of the present invention can not only efficiently remove the organic matter in abraum salt, realize the innoxious of this hazardous waste of industrial waste salt, additionally it is possible to the sodium salt byproduct for meeting industrial product quality requirement be prepared, to realize the innoxious and recycling of industrial waste salt.
Description
Technical field
The invention belongs to the processing disposal fields of industrial solid wastes, and in particular to one kind is based on sodium sulphate or sodium chloride
Want the method for resource of the industrial waste salt of ingredient.
Background technique
It takes place frequently in recent years, hazardous waste illegally handles disposition case, causes the extensive concern of various circles of society.Wherein permitted
More cases are directed to the processing disposition of the hazardous waste of chemical industry, especially waste residue abraum salt.This kind of waste has source wide
The features such as general, many kinds of, complicated component, poisonous and harmful substance content is high, not only environmental hazard is big, but also in face of increasingly stringent
Processing disposition require and environmental management policies, processing disposition requires and cost is continuously improved, therefore processing difficulty is very big,
Through becoming one of main problem urgently to be resolved in current environmental protection industry (epi).On the other hand, salt is also a kind of important industrial chemicals,
If the abraum salt of chemical industry can be carried out innoxious and recycling treatment and as a by-product reuse make the raw material of industry or
Other purposes can not only eliminate its harm to environment, can also make full use of abraum salt resource, be advantageously implemented chemical industry
Waste resource recovery and circular economy.
The innoxious and recycling of chemical industry abraum salt mainly has following technological approaches at present:
1) purification technique is melted；
I.e. under the high temperature conditions, abraum salt is melted, organic matter therein volatilizees from melt due to low boiling point, then passes through
Organic toxic harmful substance in abraum salt is finally being removed, is being obtained after purification by the gas purification techniques such as burning by exhaust-gas treatment
Inorganic salts.This is that a kind of processing dangerous waste salt is more effective and a kind of feasible most common technology, such as publication number
CN104310434A " a kind of for handling the device and technique of abraum salt ", CN106152109A " gas fuel fused salt integration pot
The patent of invention of the device of furnace thermal release substance ", grant number be CN203928459U " a kind of fused salt cooling recovery system ",
The utility model patent of CN205659976U " fusion method industrial chlorinations sodium abraum salt processing equipment " all reports this technology.It is this
Although technology can remove the toxic organics in abraum salt, there is also some shortcomings, such as because of abraum salt ingredient, form, grain
The influence of the factors such as degree, uneven heating is even, and efficiency is low, and the coking that is carbonized can also occur for organic matter, influences the quality of salt；Abraum salt is molten
It is more serious to melt bonding phenomenon, corrosive equipment surface leads to equipment damage when serious；Only consider poisonous and harmful in removal abraum salt
Organic matter, treated, and dangerous waste salt impurity content is high, is still difficult to resource utilization, can only carry out landfill disposal, not only cause
The waste of resource, and it is also higher to fill expense.
2) pyrolytic technique
I.e. high temperature and be lower than abraum salt melting temperature under conditions of, so that the organic matter in abraum salt volatilize, and by aoxidize or
The organic matter removal that will volatilize of the technologies such as burning realizes the detoxification of abraum salt and innoxious.Such as Publication No. CN106424112A " one
Multistage thermal desorption processes and equipment kind for abraum salt purification ", CN106824980A " a kind of coal chemical industry crystallization abraum salt it is innoxious
" one kind is handled for abraum salt by processing method ", CN107185948A " a kind of industrial waste salt system and method ", CN107062836A
Radiant type rotary drying device ", " organic matter is CN108408744A in a kind of hot fluid classification stripping process industrial waste salt
The patents of invention such as system and method " report this technology.This technology is preferable for the detoxification efficiency of abraum salt, has accomplished harmless
Change, but does not also limit its recycling in view of the inorganic and other impurity for being not easy vaporization at high temperature in abraum salt.
But there is also some problems in operation for this technology, because of the shadow of the factors such as abraum salt ingredient, form, granularity
It rings, uneven heating is even, and efficiency is low；Abraum salt bond vitrified phenomenon is more serious, and corrosive equipment surface causes equipment to be damaged when serious
It is bad；Only consider the toxic organics in removal abraum salt, treated, and dangerous waste salt impurity content is high, is still difficult to recycling benefit
With can only carry out landfill disposal, not only cause the waste of resource, but also it is also higher to fill expense.
3) water-soluble, salting liquid purification and resource technology
This technology is that abraum salt is dissolved with water, becomes liquid, then uses the means such as chemical subtraction or film of wastewater treatment
Equal solid-liquid separation techniques isolate and purify salt from liquid phase, obtain purer salting liquid, then further produce salt.Such as it discloses
Number be CN103693658A " waste salt comprehensive treatment device and its application method based on three-segment incinerator " patent of invention,
It is that inorganic impurity is removed by chemical treatment, is then done again after the industrial waste salt based on sodium chloride-containing is passed through dissolution
Dry, pyrolysis dehydration, organic matter volatilizees and enters gas phase in the process, then so that exhaust gas is met emission request through burning disposal,
Abraum salt is purified simultaneously, reaches chlorine industry salt requirement.A kind of " the abraum salt processing side Publication No. CN105883859A
The patent of invention of method " roasts abraum salt 0.5-4 hours at 300-600 DEG C, and the tail gas for roasting generation enters gas cleaning plant
It is discharged after being purified, product of roasting adds water to be beaten, and the treatment fluid that salinity is 15-25% is formed, by the treatment fluid through macropore
Discharge is after resin adsorption to get purer dense saline solution.Grant number is CN207933534U " a kind of purification devices of abraum salt "
NaCl waste salt dregs obtained in pesticide synthesis are dissolved in water by utility model patent；With being connected to salt dissolving groove nanofiltration membrane for salt dissolving
Salt water obtained in slot is filtered；Except cation impurity device, it is connected to the per-meate side of nanofiltration membrane, for obtaining nanofiltration membrane
Penetrating fluid in be removed cation impurity；Chelating resin column is connected to except cation impurity device, for except cation
The production water that impurity device obtains removes salt treatment using resin；Ion-exchange membrane electrolyzer is connected to chelating resin column, for setting chelating
The production water of rouge column carries out electrolysis processing, finally obtains caustic soda and chlorine.
Using this technology, available purer salt, it might even be possible to which obtained salt is subjected to deep processing into other chemical industry
Raw material is a kind of method that abraum salt recycling is ideal, but the technical matters reported at present is complicated, and processing cost is high, especially
Abraum salt higher for sodium chloride-containing is dissolved in the salting liquid of water formation because that can make resin poison containing a large amount of chloride ions, causes to inhale
Attached organic matter it is ineffective, or even lose suction-operated, which also limits by resin adsorption remove Organic substance in water this
The industrial application of technology.
In summary, it would be highly desirable to develop a kind of simple process, strong operability and processing cost it is low abraum salt is innoxious and money
Source processing technique.
Summary of the invention
Goal of the invention: technical problem to be solved by the invention is to provide a kind of method of resource of industrial waste salt, the party
Method can not only efficiently remove the organic matter in abraum salt, realize the innoxious of this hazardous waste of industrial waste salt, additionally it is possible to prepare
The sodium salt byproduct for meeting industrial product quality requirement out, to realize the innoxious and recycling of industrial waste salt.
Summary of the invention: in order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of method of resource of industrial waste salt, the industrial waste salt is using sodium chloride or sodium sulphate as main component；It is above-mentioned
Industrial waste salt carries out recycling treatment with the following method, specifically:
Step 1, it takes a certain amount of industrial waste salt to be dissolved in the water, is sufficiently dissolved under the synergy of ultrasound and stirring,
Obtain the salting liquid A close to saturation；
Step 2, salting liquid A is subjected to double-filtration purification, removes the insoluble impurities in salting liquid A, obtains salting liquid
B；
Step 3, salting liquid B is sent into spray burning furnace, lower than salt fusing point at a temperature of by the dissolution in salting liquid B
Property organic matter pyrolysis oxidation after be discharged with vapor, finally obtain dry sodium salt product.
Wherein, in step 1, ultrasound working frequency is 15~60kHz when salt dissolves.
Wherein, in step 1, in the abraum salt solution that is obtained after completely dissolution with sodium sulphate abraum salt as main component, sulfuric acid
The mass concentration of sodium is 15~28%.
Wherein, in step 1, in the abraum salt solution that is obtained after completely dissolution with sodium chloride abraum salt as main component, chlorination
The mass concentration of sodium is 20~25%.
Wherein, in step 2, in double-filtration, the first order is filtered into common filtering, and the second level is filtered into secondary filter, essence
Close filtering uses micro porous filtration.
Wherein, in step 3, the heating temperature of spray burning furnace is 500~850 DEG C.
The present invention uses ultrasonic in combination stirring and dissolving technology, makes by the cavitation effect of ultrasonic wave containing organic matter and impurity
The high abraum salt of stickiness can sufficiently dissolve；Cavitation effect can be constantly generated in liquid a large amount of micro- under the action of ultrasonic wave
Minute bubbles, minute bubbles are grown into and increase with ultrasonic vibration, and then rupture, the bubble after division continue to give birth to again suddenly again
It is long and shattered to pieces.These minute bubbles produce high temperature and pressure in bubble when rapidly rupturing, and because of the liquid at high speed punching around bubble
Enter bubble and produce strong localised waving in the liquid near bubble, also form localized hyperthermia's high pressure, to generate
The crushing of ultrasound, emulsification, to accelerate and improve the dissolution efficiency of solable matter in abraum salt；Meanwhile the present invention
Strong brine is passed through to the fine droplet formed by spraying, in spray burning furnace, is lower than at a high temperature of salt fusing point, it is molten in salting liquid
Solution property organic matter is constantly thermally decomposed, and combustion furnace is discharged with vapor in oxidation by air, and moisture is steamed in salting liquid with water
Spray burning furnace is discharged in the form of gas, and the salt particle being dried then is settled down to tower bottom.
The utility model has the advantages that processing method simple process of the present invention, on the one hand promotes the molten of salt using ultrasonic in combination stirring technique
Solution is improved its dissolution efficiency, while being removed the organic matter being dissolved in salting liquid using spray burning technology, while being realized de-
Water finally obtains the sodium salt for meeting product quality requirement.
Specific embodiment
According to following embodiments, the present invention may be better understood.However, as it will be easily appreciated by one skilled in the art that real
It applies content described in example and is merely to illustrate the present invention, without sheet described in detail in claims should will not be limited
Invention.
Inventive method sufficiently dissolves the dissolvable component in abraum salt first with ultrasonic technology, realizes the high recycling of salt
Gained strong brine is sent into spray burning furnace by rate then by double-filtration, sufficiently removal insoluble impurities, at high temperature,
By dissolved organic matter combustion decomposition therein, while obtaining dry sodium salt.
Embodiment 1
Certain pesticide producing enterprise contains high-concentration salt-containing wastewater, after triple effect evaporation, evaporation analysis salt residue is formed, in yellowish
Color is disposed as hazardous waste processing.It detected 850~895g of sodium chloride-containing in every 1kg waste salt dregs, 46~95g of moisture, had
4~12g of machine object and other impurity；Above-mentioned abraum salt is handled by following steps of the present invention:
Step 1, water will be added in dissolving tank, sets ultrasonic frequency as 20kHz, opens ultrasonic wave driving power, not
Disconnected Xiang Shuizhong adds abraum salt, and dosage is close to the saturation dosage of sodium chloride, and abraum salt is abundant in dissolving tank under ultrasonic agitation
Dissolution, obtains thick strong brine；
Step 2, thick strong brine step 1 obtained carries out double-filtration, and the first order is common filtering, removes in strong brine
Insoluble substance；The second level is secondary filter, and secondary filter uses micro porous filtration, will be in salt water by the interception function of microfiltration membranes
Those use commonly filter the tiny particles content that do not can be removed and sufficiently remove, and obtain clean strong brine；Through detecting, in salt water, chlorination
The mass concentration of sodium is that 22%, TOC (total organic carbon) is 820mg/L；
Step 3, clean strong brine is sent into electrically heated spray burning furnace by feed liquid atomizer, setting furnace temperature exists
750 DEG C or so, hot-air is sent into furnace to keep the oxidation atmosphere in burner hearth, at this temperature by having in strong brine drop
Machine object is constantly thermally decomposed as vapor, while in the case where aoxidizing atmosphere, organic matter is constantly aoxidized, and furnace body is finally discharged；And
The particle of dry drop then forming salt, is constantly deposited to burning furnace bottom, obtains dry sodium chloride product.
Through detecting, products obtained therefrom ingredient: sodium chloride 99.2%, sulfate radical 0.2%, calcium and magnesium 0.32%, moisture 0.2%, no
Molten object 0.08% reaches the quality criteria requirements of the dry salt of level-one industry in " Nacl " (GB/T 5462-2015).
Embodiment 2
Certain chemical company's abraum salt in light gray, is consolidated into blocky and somewhat viscous based on sodium chloride, sampled analysis,
Each ingredient is as follows: sodium chloride 90.1%, moisture 7.6%, organic matter 1.05% and other impurity；Such as by the present invention by above-mentioned abraum salt
Lower step is handled:
Step 1, water will be added in dissolving tank, sets ultrasonic frequency as 30kHz, opens ultrasonic wave driving power, not
Disconnected Xiang Shuizhong adds abraum salt, and dosage is close to the saturation dosage of sodium chloride, and abraum salt is abundant in dissolving tank under ultrasonic agitation
Dissolution, obtains thick strong brine；
Step 2, thick strong brine step 1 obtained carries out double-filtration, and the first order is common filtering, removes in strong brine
Insoluble substance；The second level is secondary filter, and secondary filter uses micro porous filtration, will be in salt water by the interception function of microfiltration membranes
Those use commonly filter the tiny particles content that do not can be removed and sufficiently remove, and obtain clean strong brine；Through detecting, in salt water, chlorination
The mass concentration of sodium is 24%, TOC (total organic carbon) 6190mg/L；
Step 3, clean strong brine is sent into electrically heated spray burning furnace by feed liquid atomizer, setting furnace temperature exists
750 DEG C or so, hot-air is sent into furnace to keep the oxidation atmosphere in burner hearth, at this temperature by having in strong brine drop
Machine object is constantly thermally decomposed as vapor, while in the case where aoxidizing atmosphere, organic matter is constantly aoxidized, and furnace body is finally discharged；And
The particle of dry drop then forming salt, is constantly deposited to burning furnace bottom, obtains dry sodium chloride product.
Through detecting, products obtained therefrom ingredient: sodium chloride 98.9%, sulfate radical 0.45%, calcium and magnesium 0.25%, moisture 0.34%,
Insoluble matter 0.06% reaches the quality criteria requirements of the dry salt of level-one industry in " Nacl " (GB/T 5462-2015).
Embodiment 3
Certain fine chemistry industry enterprise saltouts filter station abraum salt, is in canescence, sampling analysis, each ingredient based on sodium sulphate
It is as follows: sodium sulphate 86.8%, moisture 12.1%, organic matter 0.86% and other impurity；By above-mentioned abraum salt by the following step of the present invention
Suddenly it is handled:
Step 1, water will be added in dissolving tank, sets ultrasonic frequency as 30kHz, opens ultrasonic wave driving power, not
Disconnected Xiang Shuizhong adds abraum salt, and dosage is close to the saturation dosage of sodium sulphate, and abraum salt is abundant in dissolving tank under ultrasonic agitation
Dissolution, obtains thick strong brine；
Step 2, thick strong brine step 1 obtained carries out double-filtration, and the first order is common filtering, removes in strong brine
Insoluble substance；The second level is secondary filter, and secondary filter uses micro porous filtration, will be in salt water by the interception function of microfiltration membranes
Those use commonly filter the tiny particles content that do not can be removed and sufficiently remove, and after double-filtration, obtain clean strong brine；Through detecting,
In salt water, the mass concentration of sodium sulphate is 19%, TOC (total organic carbon) 2200mg/L；
Step 3, clean strong brine is sent into electrically heated spray burning furnace by feed liquid atomizer, setting furnace temperature exists
850 DEG C or so, hot-air is sent into furnace to keep the oxidation atmosphere in burner hearth, at this temperature by having in strong brine drop
Machine object is constantly thermally decomposed as vapor, while in the case where aoxidizing atmosphere, organic matter is constantly aoxidized, and furnace body is finally discharged；And
The particle of dry drop then forming salt, is constantly deposited to burning furnace bottom, obtains dry anhydrous sodium sulfate product.
Through detecting, anhydrous sodium sulfate product composition obtained are as follows: sodium sulphate 99.3%, chloride 0.2%, calcium and magnesium
0.15%, moisture 0.15% and insoluble matter 0.03%, whiteness 85% reach " industrial anhydrous sodium sulfate " (GB/T 6009-
2014) quality criteria requirements of I class Grade A in.
Compared with the dissolution of traditional abraum salt mechanical stirring, stirring and dissolving technology is assisted using ultrasonic wave, abraum salt can be made sufficiently molten
In Xie Yushui, especially to those containing more than organic matter and impurity and abraum salt that stickiness is high, dissolution efficiency is higher, can be made close
The crude salt solution of saturation.
Lower than salt fusing point at a temperature of spraying burning is carried out to strong brine, the organic matter pyrolysis in strong brine can not only be made
And oxidation, the organic matter in demineralized water is efficiently removed, also can effectively avoid bond vitrified phenomenon of the abraum salt more than melting temperature, no
Finally obtained sodium salt quality is improved only, and also reduces equipment surface corrosion, it is more serious to even result in equipment damage etc.
The generation of problem.
The whether anhydrous sodium sulfate or sodium chloride recycled by the method for the invention, product quality meet " industry respectively
Anhydrous sodium sulfate " (GB/T 6009-2014) and " Nacl " (GB/T 5462-2015) quality criteria requirements.Side of the present invention
Method not only may be implemented using sodium sulphate or sodium chloride as the harmless treatment of this kind of hazardous waste of the industrial waste salt of principal component, simultaneously
Can also be made meet target level of product quality requirement anhydrous sodium sulfate or sodium chloride byproduct, efficiently solve industrial waste salt this
Treatment of wastes produced problem, and present invention process process is simple, strong operability, has significant environmental benefit, economic benefit and reality
With value.
Claims (6)
1. a kind of method of resource of industrial waste salt, it is characterised in that: the industrial waste salt is main with sodium chloride or sodium sulphate
Ingredient；Above-mentioned industrial waste salt carries out recycling treatment with the following method, specifically:
Step 1, it takes a certain amount of industrial waste salt to be dissolved in the water, sufficiently dissolves, obtain under the synergy of ultrasound and stirring
Close to the salting liquid A of saturation；
Step 2, salting liquid A is subjected to double-filtration purification, removes the insoluble impurities in salting liquid A, obtains salting liquid B；
Step 3, salting liquid B is sent into spray burning furnace, lower than salt fusing point at a temperature of the dissolubility in salting liquid B had
It is discharged after machine object pyrolitic oxidation with vapor, finally obtains dry sodium salt product.
2. the method for resource of industrial waste salt according to claim 1, it is characterised in that: in step 1, ultrasound when salt dissolves
Wave working frequency is 15~60kHz.
3. the method for resource of industrial waste salt according to claim 1, it is characterised in that: in step 1, based on sodium sulphate
In the abraum salt solution for wanting the abraum salt of ingredient to obtain after completely dissolution, the mass concentration of sodium sulphate is 15~28%.
4. the method for resource of industrial waste salt according to claim 1, it is characterised in that: in step 1, based on sodium chloride
In the abraum salt solution for wanting the abraum salt of ingredient to obtain after completely dissolution, the mass concentration of sodium chloride is 20~25%.
5. the method for resource of industrial waste salt according to claim 1, it is characterised in that: in step 2, in double-filtration,
The first order is filtered into common filtering, and the second level is filtered into secondary filter, and secondary filter uses micro porous filtration.
6. the method for resource of industrial waste salt according to claim 1, it is characterised in that: in step 3, spray burning furnace
Heating temperature is 500~850 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548750A (en) * | 2019-09-05 | 2019-12-10 | 上海晶宇环境工程股份有限公司 | Waste salt recycling treatment process and special equipment thereof |
| CN110695059A (en) * | 2019-10-23 | 2020-01-17 | 绍兴市上虞众联环保有限公司 | Industrial organic waste salt treatment process |
| CN110711764A (en) * | 2019-10-29 | 2020-01-21 | 江苏盛勤环境工程有限公司 | Solid waste salt recycling process technology |
| CN110937611A (en) * | 2019-11-01 | 2020-03-31 | 临涣焦化股份有限公司 | System and method for improving purity of secondary salt in desulfurization waste liquid |
| CN111994915A (en) * | 2020-08-28 | 2020-11-27 | 山西华康绿色建材有限公司 | Method and device for producing sodium silicate and sulfuric acid from high-sulfur-content salt |
| CN114408946A (en) * | 2022-01-20 | 2022-04-29 | 陕西聚泰新材料科技有限公司 | Purification system is handled to useless sodium sulfate |
| CN114660184A (en) * | 2020-12-22 | 2022-06-24 | 沈阳沈化院测试技术有限公司 | Method for evaluating risks of harmlessness and recycling of pesticide waste salt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874958A (en) * | 2011-07-11 | 2013-01-16 | 凯膜过滤技术(上海)有限公司 | Method for treating and reusing sodium sulfate containing organic waste water |
| CN105419383A (en) * | 2015-10-30 | 2016-03-23 | 浙江奇彩环境科技股份有限公司 | Improved dye synthesis process |
| CN105712555A (en) * | 2014-12-02 | 2016-06-29 | 中国科学院大连化学物理研究所 | Resource utilization method of high-salinity organic wastewater formed in light stabilizer 944 production |
| EP3398913A1 (en) * | 2017-05-05 | 2018-11-07 | Hochschule für Angewandte Wissenschaften Hof | Method and apparatus for increasing anaerobic decomposition by extending or adapting the preliminary acidification stage |
| CN109550771A (en) * | 2018-12-11 | 2019-04-02 | 中化环境控股有限公司 | The minimizing technology and removal device of organic pollutant in industrial waste salt |
-
2019
- 2019-04-12 CN CN201910297362.4A patent/CN110054203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874958A (en) * | 2011-07-11 | 2013-01-16 | 凯膜过滤技术(上海)有限公司 | Method for treating and reusing sodium sulfate containing organic waste water |
| CN105712555A (en) * | 2014-12-02 | 2016-06-29 | 中国科学院大连化学物理研究所 | Resource utilization method of high-salinity organic wastewater formed in light stabilizer 944 production |
| CN105419383A (en) * | 2015-10-30 | 2016-03-23 | 浙江奇彩环境科技股份有限公司 | Improved dye synthesis process |
| EP3398913A1 (en) * | 2017-05-05 | 2018-11-07 | Hochschule für Angewandte Wissenschaften Hof | Method and apparatus for increasing anaerobic decomposition by extending or adapting the preliminary acidification stage |
| CN109550771A (en) * | 2018-12-11 | 2019-04-02 | 中化环境控股有限公司 | The minimizing technology and removal device of organic pollutant in industrial waste salt |
Non-Patent Citations (1)
| Title |
|---|
| 毛悌和: "《化工废水处理技术》", 《化工废水处理技术》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548750A (en) * | 2019-09-05 | 2019-12-10 | 上海晶宇环境工程股份有限公司 | Waste salt recycling treatment process and special equipment thereof |
| CN110548750B (en) * | 2019-09-05 | 2024-04-23 | 上海晶宇环境工程股份有限公司 | Waste salt recycling treatment process and special equipment thereof |
| CN110695059A (en) * | 2019-10-23 | 2020-01-17 | 绍兴市上虞众联环保有限公司 | Industrial organic waste salt treatment process |
| CN110695059B (en) * | 2019-10-23 | 2022-04-05 | 绍兴市上虞众联环保有限公司 | Industrial organic waste salt treatment process |
| CN110711764A (en) * | 2019-10-29 | 2020-01-21 | 江苏盛勤环境工程有限公司 | Solid waste salt recycling process technology |
| CN110937611A (en) * | 2019-11-01 | 2020-03-31 | 临涣焦化股份有限公司 | System and method for improving purity of secondary salt in desulfurization waste liquid |
| CN110937611B (en) * | 2019-11-01 | 2023-05-23 | 临涣焦化股份有限公司 | System and method for improving purity of secondary salt of desulfurization waste liquid |
| CN111994915A (en) * | 2020-08-28 | 2020-11-27 | 山西华康绿色建材有限公司 | Method and device for producing sodium silicate and sulfuric acid from high-sulfur-content salt |
| CN114660184A (en) * | 2020-12-22 | 2022-06-24 | 沈阳沈化院测试技术有限公司 | Method for evaluating risks of harmlessness and recycling of pesticide waste salt |
| CN114408946A (en) * | 2022-01-20 | 2022-04-29 | 陕西聚泰新材料科技有限公司 | Purification system is handled to useless sodium sulfate |
| CN114408946B (en) * | 2022-01-20 | 2023-08-15 | 陕西聚泰新材料科技有限公司 | Useless sodium sulfate treatment purification system |
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