CN108862696A - A kind of efficient desiliconizing agent and preparation method thereof in coal inhibition and generation work - Google Patents
A kind of efficient desiliconizing agent and preparation method thereof in coal inhibition and generation work Download PDFInfo
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- CN108862696A CN108862696A CN201810599254.8A CN201810599254A CN108862696A CN 108862696 A CN108862696 A CN 108862696A CN 201810599254 A CN201810599254 A CN 201810599254A CN 108862696 A CN108862696 A CN 108862696A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A kind of efficient desiliconizing agent in coal inhibition and generation work, is prepared by the material of following parts by weight：5-15 parts of white lime；10-30 parts of aluminium polychloride；4-8 parts of ferric trichloride；5-10 parts of aluminum sulfate；40-65 parts of deionized water.The present invention solves the problems, such as that gasification waste water silicon content is high in coal inhibition and generation work, to reach the standard that Sewage treatment recycles zero-emission, efficient desiliconizing agent is obvious except silicon effect, has the characteristics that simple production process, at low cost, nontoxic, improve system reliability of operation and stability, system operation cost is reduced, 95% is up to the removal efficiency of silicon.
Description
Technical field
The present invention relates to water-treatment technology field more particularly to a kind of efficient desiliconizing agents in coal inhibition and generation work.
Background technique
With the rapid development of modern economy society, the demand to water is also growing.Therefore, in production process
The sewage of middle generation also increases substantially, and later period reusing sewage has been to be concerned by more and more people.
In coal inhibition and generation work, sewage recycling and reusing has become the trend of present industrial water, can improve influent quality
Pretreatment, by the removal such as suspended matter, colloid substances and each ion in water or reduce, reach the technique with water requirement.Coal itself
To the dissolved silicon for bringing high-content in sewage, serious burden, dissolubility silica are brought to the counter-infiltration system in later period
Serious dirt can be caused stifled to film, the cleaning of later period film brings very big difficulty, in order to improve the utilization rate of water resource, to coal
Silicon in chemical engineering sewage processed is handled, and is reduced to a certain extent dissolved silicon in waste water, is not influenced wastewater ocean disposal, reaches
To near-zero release.
Efficient desiliconizing agent is by being realized by adding efficient desiliconizing agent except silicon effect, due in water under certain pH value
Colloidal solid be to be assembled by many lewis' acids, have certain active surface, generate adsorption capacity, thus absorption
Ion in water, charges colloidal grain surface.Since similar colloid has homophilic charge, produce that identical charges repel each other, just
The contact and bonding between colloidal solid are prevented, so that colloidal solid is always maintained at graininess and suspends in water, it cannot
Natural sedimentation is got off from water.
To compare effect with common desiliconizing agent not prominent enough for the desiliconizing agent of gasification waste water in coal inhibition and generation work currently on the market, makes to give up
Silicone content is still higher after treatment for water, necessarily has a good application prospect so developing a kind of efficient desiliconizing agent.
China Patent Publication No.：CN104724802A discloses a kind of waste water treatment process, includes the following steps：1) heavy
The magnesia of 1%-3%w/w and the Nacl of 1%-5%w/w are added in the pond of shallow lake；2) by aeration or stirring so that magnesia and
Nacl is mixed with waste water；3) magnesia, Nacl and waste water are mixed a period of time, when stirring allows magnesia
Reacted with water generate magnesium hydroxide, magnesium hydroxide in waste water copper ion and others micro heavy ion reacted,
Sediment and suspended matter are generated, at the same time, Nacl reacts with magnesia, accelerates the dissolution of magnesia；4) stop stirring
After mixing, the sediment in waste water is allowed to be settled, the sediment and suspended matter after precipitating are separated with surface layer waste water, then by surface layer
Waste water discharge and largely remove sediment and suspended matter.
It can be seen that the waste water treatment process has the following problems：
1, need to launch a large amount of magnesia in the technique, process costs are high；
2, long the time required to purification, purification efficiency is low；
Summary of the invention
For this purpose, the present invention provides a kind of efficient desiliconizing agent in coal inhibition and generation work, to overcome waste water in the prior art
The low problem of purification efficiency.
On the one hand, the present invention provides a kind of efficient desiliconizing agent in coal inhibition and generation work, by the material of following parts by weight
It is prepared：
Preferably, the efficient desiliconizing agent in coal inhibition and generation work is prepared by the material of following parts by weight：Ripe stone
5 parts of ash；10 parts of aluminium polychloride；4 parts of ferric trichloride；5 parts of aluminum sulfate；40 parts of deionized water.
Preferably, the efficient desiliconizing agent in coal inhibition and generation work is prepared by the material of following parts by weight：Ripe stone
15 parts of ash；30 parts of aluminium polychloride；8 parts of ferric trichloride；10 parts of aluminum sulfate；65 parts of deionized water.
Preferably, the efficient desiliconizing agent in coal inhibition and generation work is prepared by the material of following parts by weight：Ripe stone
10 parts of ash；20 parts of aluminium polychloride；6 parts of ferric trichloride；7 parts of aluminum sulfate；53 parts of deionized water.
Further, the production method of the desiliconizing agent is：The three of corresponding parts by weight are sequentially added in solid blender
Iron chloride, white lime, aluminum sulfate and aluminium polychloride stir 2 hours, obtain the efficient desiliconizing agent after mixing.
On the other hand, the application method for the efficient desiliconizing agent in coal inhibition and generation work is as follows：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：The pH value of waste water in the step a is maintained 11.0 with pH adjusting agent, 10min is reacted, adds height
Molecular flocculant (polyacrylamide) carries out flocculating setting, carries out sewage except silicon processing.
Further, the desiliconizing agent in the step a is added according to the silicone content in waste water.
Further, the high polymer coagulant in the step b is polyacrylamide.
Further, the pH adjusting agent in the step b is sodium hydroxide.
Further, the mechanism of action for each component that the present invention uses is as follows：
White lime：Belong to alkalinity, Coagulation aiding can be played for colloidal particles in water process, and increase weight as granular core
Agent accelerates the precipitation and separation of insoluble matter；
Aluminium polychloride：A kind of emerging water-purifying material is inorganic polymer coagulant, is between AlCI3With Al (OH)3It
Between a kind of water-soluble inorganic high molecular polymer, there is height charge neutrality and bridge linking effect to water-borne glue body and particulate matter, and
Micro- Toxic and heavy metal ion can be strongly removed, character is stablized；Aluminium polychloride has the performances such as absorption, cohesion, precipitating, tool
Have that stability is good, adapt to that waters is wide, and hydrolysis rate is fast, and adsorption capacity is strong, forms that alumen ustum is big, and the close precipitating of matter is fast, and delivery turbidity is low,
The advantages that dewatering is good；Aluminium polychloride, and it is called efficient polyaluminium chloride for short, efficient PAC or the spray drying of efficient grade are poly-
Close aluminium chloride；Aluminium polychloride is suitable for the raw water of various turbidity, and pH is applied widely.
Iron chloride：It is mainly used for metal etch, sewage treatment；To the original sub-block of low oil content, have effect is good, price just
The advantages that suitable, but the shortcomings that bring water colour yellowing；Organic industry is used as catalyst, oxidant and chlorinating agent；Glass industry is used as
The hot colorant of glassware；Soapmaking industry is used as the flocculating agent of soap spent lye recycling glycerol.
Aluminum sulfate：Flocculant is made in drinking water, industrial water and Industrial Wastewater Treatment, accounts about aluminum sulfate total output
40%；When into water be added aluminum sulfate after, can be generated it is gelatinous, can adsorb and be settled out bacterium, colloid and other suspended matters
Aluminium hydroxide flocculus；Aluminum sulfate is used in the color and taste that can control water in drinking water treatment；It can make in water after being dissolved in water
Fine particles and natural micelle are condensed into bulk floccule, to remove from water, therefore are used as the coagulant to supply water with waste water；It can
As muddy water cleanser, precipitating reagent, color fixing agent, filler etc. are also served as.
The beneficial effects of the present invention are the efficient desiliconizing agent in coal inhibition and generation work solves compared with prior art
The high problem of gasification waste water silicon content in coal inhibition and generation work is efficiently removed to reach the standard that Sewage treatment recycles zero-emission
Silicea is obvious except silicon effect, has the characteristics that simple production process, at low cost, nontoxic, and the system that improves runs reliable
Property and stability, reduce system operation cost, 95% is up to the removal efficiency of silicon.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is further retouched below with reference to embodiment
It states；It should be appreciated that specific embodiment described herein is used only for explaining the present invention, it is not intended to limit the present invention.
The embodiment of the present invention using 5-15 parts of white lime, aluminium polychloride, ferric trichloride, aluminum sulfate, deionized water as raw material,
It will be illustrated below according to the embodiment of each different ratio.
Embodiment 1
A kind of efficient desiliconizing agent in coal inhibition and generation work, including following components：
Efficient desiliconizing agent includes each component of following parts by weight meter：5 parts of white lime, 20 parts of aluminium polychloride, ferric trichloride 8
Part, 10 parts of aluminum sulfate, 52 parts of deionized water.
A kind of application method for the efficient desiliconizing agent in coal inhibition and generation work, method and step are as follows：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：Again into waste water with pH adjusting agent tune pH value 11.0, react 10 minutes min, add flocculating polymer
Agent (polyacrylamide) carries out flocculating setting, carries out sewage except silicon processing.
Further, the desiliconizing agent in the step a is added according to the silicone content in waste water.
Further, the pH adjusting agent in the step b is sodium hydroxide.
Embodiment 2
A kind of efficient desiliconizing agent in coal inhibition and generation work, including following components：
Efficient desiliconizing agent includes each component of following parts by weight meter：10 parts of white lime, 30 parts of aluminium polychloride, ferric trichloride
6 parts, 5 parts of aluminum sulfate, 49 parts of deionized water.
A kind of application method for the efficient desiliconizing agent in coal inhibition and generation work, method and step are as follows：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：Again into waste water with pH adjusting agent tune pH value 11.0, react 10 minutes min, add flocculating polymer
Agent (polyacrylamide) carries out flocculating setting, carries out sewage except silicon processing.
Further, the desiliconizing agent in the step a is added according to the silicone content in waste water.
Further, the pH adjusting agent in the step b is sodium hydroxide.
Embodiment 3
A kind of efficient desiliconizing agent in coal inhibition and generation work, including following components：
Efficient desiliconizing agent includes each component of following parts by weight meter：15 parts of white lime, 10 parts of aluminium polychloride, ferric trichloride
4 parts, 10 parts of aluminum sulfate, 61 parts of deionized water.
A kind of application method for the efficient desiliconizing agent in coal inhibition and generation work, method and step are as follows：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：Again into waste water with pH adjusting agent tune pH value 11.0, react 10 minutes min, add flocculating polymer
Agent (polyacrylamide) carries out flocculating setting, carries out sewage except silicon processing.
Further, the desiliconizing agent in the step a is added according to the silicone content in waste water.
Further, the pH adjusting agent in the step b is sodium hydroxide.
Embodiment 4
A kind of efficient desiliconizing agent in coal inhibition and generation work, including following components：
Efficient desiliconizing agent includes each component of following parts by weight meter：10 parts of white lime, 20 parts of aluminium polychloride, ferric trichloride
6 parts, 8 parts of aluminum sulfate, 56 parts of deionized water.
A kind of application method for the efficient desiliconizing agent in coal inhibition and generation work, method and step are as follows：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：Again into waste water with pH adjusting agent tune pH value 11.0, react 10 minutes min, add flocculating polymer
Agent (polyacrylamide) carries out flocculating setting, carries out sewage except silicon processing.
Further, the desiliconizing agent in the step a is added according to the silicone content in waste water.
Further, the pH adjusting agent in the step b is sodium hydroxide.
Embodiment 5
A kind of efficient desiliconizing agent in coal inhibition and generation work, including following components：
Efficient desiliconizing agent includes each component of following parts by weight meter：5 parts of white lime, 30 parts of aluminium polychloride, ferric trichloride 8
Part, 8 parts of aluminum sulfate, 49 parts of deionized water.
A kind of application method for the efficient desiliconizing agent in coal inhibition and generation work, method and step are as follows：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：Again into waste water with pH adjusting agent tune pH value 11.0, react 10 minutes min, add flocculating polymer
Agent (polyacrylamide) carries out flocculating setting, carries out sewage except silicon processing.
Further, the desiliconizing agent in the step a is added according to the silicone content in waste water.
Further, the pH adjusting agent in the step b is sodium hydroxide.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention；For those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of efficient desiliconizing agent in coal inhibition and generation work, which is characterized in that be prepared by the material of following parts by weight：
2. the efficient desiliconizing agent according to claim 1 in coal inhibition and generation work, which is characterized in that by following parts by weight
Material is prepared：5 parts of white lime；10 parts of aluminium polychloride；4 parts of ferric trichloride；5 parts of aluminum sulfate；40 parts of deionized water.
3. the efficient desiliconizing agent according to claim 1 in coal inhibition and generation work, which is characterized in that by following parts by weight
Material is prepared：15 parts of white lime；30 parts of aluminium polychloride；8 parts of ferric trichloride；10 parts of aluminum sulfate；65 parts of deionized water.
4. the efficient desiliconizing agent according to claim 1 in coal inhibition and generation work, which is characterized in that by following parts by weight
Material is prepared：10 parts of white lime；20 parts of aluminium polychloride；6 parts of ferric trichloride；7 parts of aluminum sulfate；53 parts of deionized water.
5. the efficient desiliconizing agent according to claim 1 in coal inhibition and generation work, which is characterized in that the system of the desiliconizing agent
It is as method：Ferric trichloride, white lime, aluminum sulfate and the polyaluminium of corresponding parts by weight are sequentially added in solid blender
Aluminium stirs 2 hours, obtains the efficient desiliconizing agent after mixing.
6. the efficient desiliconizing agent according to claim 1 in coal inhibition and generation work, which is characterized in that the desiliconizing agent makes
It is as follows with method：
Step a：A certain amount of efficient desiliconizing agent is added into coal chemical industry gasification waste water, reacts 3min；
Step b：The pH value of waste water in the step a is maintained 11.0 with pH adjusting agent, 10min is reacted, adds macromolecule
Flocculant carries out flocculating setting, carries out sewage except silicon processing.
7. the efficient desiliconizing agent according to claim 6 in coal inhibition and generation work, which is characterized in that in the step a
Desiliconizing agent is added according to the silicone content in waste water.
8. the efficient desiliconizing agent according to claim 6 in coal inhibition and generation work, which is characterized in that in the step b
High polymer coagulant is polyacrylamide.
9. the efficient desiliconizing agent according to claim 6 in coal inhibition and generation work, which is characterized in that in the step b
PH adjusting agent is sodium hydroxide.
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| CN201810599254.8A CN108862696A (en) | 2018-06-12 | 2018-06-12 | A kind of efficient desiliconizing agent and preparation method thereof in coal inhibition and generation work |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186919A (en) * | 2019-07-10 | 2020-05-22 | 宜兴市荣盛达环保有限公司 | Novel special compound reagent for high-hardness high-silicon industrial wastewater |
| CN114349185A (en) * | 2021-12-06 | 2022-04-15 | 国家能源集团宁夏煤业有限责任公司 | Silicon removing agent, preparation method thereof and silicon removing method |
| CN115594272A (en) * | 2022-11-09 | 2023-01-13 | 德蓝(海南)未来之水有限公司（Cn） | Efficient silicon removal agent for coal chemical wastewater, preparation and use method thereof |
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| CN115594272A (en) * | 2022-11-09 | 2023-01-13 | 德蓝(海南)未来之水有限公司（Cn） | Efficient silicon removal agent for coal chemical wastewater, preparation and use method thereof |
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