CN109516611A - A kind of processing method of emulsion waste liquid - Google Patents
A kind of processing method of emulsion waste liquid Download PDFInfo
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- CN109516611A CN109516611A CN201910066336.0A CN201910066336A CN109516611A CN 109516611 A CN109516611 A CN 109516611A CN 201910066336 A CN201910066336 A CN 201910066336A CN 109516611 A CN109516611 A CN 109516611A
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- emulsion
- emulsion waste
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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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
Abstract
The present invention relates to a kind of processing methods of emulsion waste liquid, comprising the following steps: (1) will be in emulsion waste collection to waste collection pond；(2) emulsion waste liquid is pumped into decomposition reaction kettle；(3) treatment agent is added into decomposition reaction kettle；(4) compressed air is filled with from decomposition reaction kettle lower part；(5) it is filled the water from decomposition reaction kettle lower part；(6) from decomposition reaction kettle top, by waste oil collecting to processing bucket, from decomposition reaction kettle lower part, the emulsion waste liquid injection that will remove waste oil is handled in bucket；(7) aluminium polychloride and polyacrylamide are added in processing bucket；(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device.The present invention makes emulsifier generation reaction, disintegrates automatically, reach demulsification disintegration, the effect of water-oil separating, to realize the processing of emulsion waste liquid by the way that treatment agent is added.
Description
Technical field
The present invention relates to explosive liquid waste disposal technique fields, and in particular to a kind of processing method of emulsion waste liquid.
Background technique
Emulsion is to refer to a kind of droplet for making oxidant salts solution prepared with emulsifying technology, is dispersed in
In oily phase continuous media containing the dispersion porous masses such as bubble or hollow glass micropearl, a kind of water-in-oil type (W/O) is formed
The aqueous commercial explosive of emulsion state.Emulsion is due to preferable cap-sensitivity and water-resistance, and its explosion property is good, mechanical
The advantages that sensitivity is low and safety is good, while cost is lower than aqueous gels, emulsion has been widely used in various civilian
In blasting work, there are water and moist explosion occasion more to show its superiority.
But a certain amount of useless emulsified base is all inevitably generated in the production of emulsion explosive and in storage process
Matter or useless emulsification finished explosive products.CONTINUOUS PRODUCTION LINE OF EMULSION EXPLOSIVE from starting stage, for a long time shut down when pipeline cleaning, powder charge
The processes such as the periodic cleaning of vehicle basin, finished product lengthy warehousing can all generate some useless emulsified bases or useless emulsification finished explosive products.
By Literature Consult, China firer industry technology personnel have also made some researchs these years, mainly there is following five kinds of processing modes:
(1) ethyl alcohol infusion method, the disadvantages of the method are as follows it is at high cost, and Fen Solution is not thorough；
(2) solid compounds additive process, this method are that Water-absorbing high polymer is added, and siphon away moisture, powder type explosive is then added
Middle recycling, the disadvantage is that performance that is at high cost and reducing powder type explosive；
(3) method is blended, useless emulsion is mixed on a small quantity less problematic, if incorporation is improper to reduce properties of product, is produced
Raw new waste product；
(4) thermal decomposition method can only decompose oneself demulsification explosive, cannot decompose the part explosive not being demulsified；
(5) it digs pit landfill method, a large amount of landfills do not meet safety requirements, if encountering lightning stroke or other exceptions, once ignite consequence
It is hardly imaginable.
Five kinds of methods are undesirable above, cannot thoroughly solve the problems, such as useless emulsion processing safely.
In response to this problem, inventor has carried out multiple research, and discovery, which really is able to the useless emulsion method of really solution, is
So that the emulsifier in useless emulsion is generated reaction, it is automatic to disintegrate, and at present in the production of emulsion explosive use than wide
Emulsifier be mainly Arlacel-80 and polybutene succinimide (it is single hang, double extensions and hang more) two class emulsifiers.Therefore, such as
What makes mentioned emulsifier generate reaction, automatic to disintegrate, and is the key point for solving useless emulsion.
It is existing in the prior art to solve the present invention provides a kind of processing method of emulsion waste liquid based on this
Problem.
Summary of the invention
In view of the above-mentioned analysis to the prior art, the present invention provides a kind of processing method of emulsion waste liquid, by adding
Enter treatment agent, emulsifier is made to generate reaction, it is automatic to disintegrate, reach demulsification and disintegrates, the effect of water-oil separating, to realize emulsification
The processing of explosive waste liquid.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of processing method of emulsion waste liquid, comprises the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 70-90 DEG C, is demulsified under agitation, stir 10-
20min stops stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
More preferred, the additive amount of the treatment agent in the step (3) is the 2-4% of emulsion waste liquid weight.
More preferred, the treatment agent is the linear salts substances of 12 carbon to 18 carbon.
More preferred, the mixing speed in the step (3) is 50-70rpm.
More preferred, compressed air pressure is 0.2-0.5Mpa in the step (4), and molten gas and emulsion waste liquid
Volume ratio be 1:25-35.
More preferred, the additive amount of the aluminium polychloride in the step (7) is the 0.2- of emulsion waste liquid weight
0.5%, the additive amount of the polyacrylamide is the 0.1-0.4% of emulsion waste liquid weight.
It is more preferred, the stirring condition in the step (7) are as follows: with quiet after 200-300rpm speed stirring 20-30min
Set sedimentation 5-8h.
More preferred, the sand filtering device is Multistage filtering device, is followed successively by quartz sand-active carbon-stone from top to bottom
Sand.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention makes emulsifier generate reaction by addition treatment agent, automatic to disintegrate, and reaches to be demulsified and disintegrate, water-oil separating
Effect, thus realize the processing of emulsion waste liquid, specifically: emulsifier span -80 used in emulsion is a kind of oil
Sour list sorbitol ester occurs reversible reaction, is decomposed into oleic acid and sorbierite, lose under the alkalescence effect of normal carbon chain amidic-salt
Go emulsification, and another emulsifier polyisobutene succinimide, complex compound is generated under normal carbon chain amide salt action
And emulsibility is lost, to achieve the purpose that the disintegration water-oil separating that is demulsified.
Secondly, the present invention first filters out solidity impurity in emulsion waste liquid before being demulsified, it is convenient for subsequent demulsification, and
The additive amount of temperature, mixing speed and treatment agent when by control demulsification, so that preferable demulsification is realized, so that newborn
Change explosive waste liquid all to decompose automatically, realizes the purpose of emulsion liquid waste processing.
In addition, the grease in emulsion waste liquid is layered by the present invention by using pneumatically supported mode, oil reservoir swims in water
Layer is supreme, then pumps from the top of decomposition reaction kettle, and water-oil separating is realized in lower part draining, and then is realized useless to emulsion
The purpose of liquid processing, wherein the oil isolated can make boiler oil on a small quantity, collect if measuring greatly and can be used as cutting profit
Lubricating oil, and separating treatment come out water carry out flocculating setting filtering and etc. processing after, further purified, reached
National Industrial wastewater discharge standard.
Specific embodiment
Form by the following examples is described in further detail above content of the invention again, but should not be by this
The range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiment, all technologies based on realization belonging to above content of the present invention
It all belongs to the scope of the present invention.
Embodiment 1
The processing method of the emulsion waste liquid of the present embodiment, comprises the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 70 DEG C, is demulsified under agitation, stir 10min, stop
Stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
Wherein, the additive amount of the treatment agent in the step (3) is the 2% of emulsion waste liquid weight.
Wherein, the treatment agent is the linear salts substances of 12 carbon to 18 carbon.
Wherein, the mixing speed in the step (3) is 50rpm.
Wherein, compressed air pressure is 0.2Mpa, and the volume ratio of molten gas and emulsion waste liquid in the step (4)
For 1:25.
Wherein, the additive amount of the aluminium polychloride in the step (7) is the 0.2% of emulsion waste liquid weight, described poly-
The additive amount of acrylamide is the 0.1% of emulsion waste liquid weight.
Wherein, the stirring condition in the step (7) are as follows: with standing sedimentation 5h after 200rpm speed stirring 20min.
Wherein, the sand filtering device is Multistage filtering device, is followed successively by quartz sand-active carbon-quartz sand from top to bottom.
Embodiment 2
The processing method of the emulsion waste liquid of the present embodiment, comprises the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 90 DEG C, is demulsified under agitation, stir 20min, stop
Stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
Wherein, the additive amount of the treatment agent in the step (3) is the 4% of emulsion waste liquid weight.
Wherein, the treatment agent is the linear salts substances of 12 carbon to 18 carbon.
Wherein, the mixing speed in the step (3) is 70rpm.
Wherein, compressed air pressure is 0.5Mpa, and the volume ratio of molten gas and emulsion waste liquid in the step (4)
For 1:35.
Wherein, the additive amount of the aluminium polychloride in the step (7) is the 0.5% of emulsion waste liquid weight, described poly-
The additive amount of acrylamide is the 0.4% of emulsion waste liquid weight.
Wherein, the stirring condition in the step (7) are as follows: with standing sedimentation 8h after 300rpm speed stirring 30min.
Wherein, the sand filtering device is Multistage filtering device, is followed successively by quartz sand-active carbon-quartz sand from top to bottom.
Embodiment 3
The processing method of the emulsion waste liquid of the present embodiment, comprises the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 800 DEG C, is demulsified under agitation, stir 15min, stop
Stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
Wherein, the additive amount of the treatment agent in the step (3) is the 3% of emulsion waste liquid weight.
Wherein, the treatment agent is the linear salts substances of 12 carbon to 18 carbon.
Wherein, the mixing speed in the step (3) is 60rpm.
Wherein, compressed air pressure is 0.4Mpa, and the volume ratio of molten gas and emulsion waste liquid in the step (4)
For 1:30.
Wherein, the additive amount of the aluminium polychloride in the step (7) is the 0.3% of emulsion waste liquid weight, described poly-
The additive amount of acrylamide is the 0.3% of emulsion waste liquid weight.
Wherein, the stirring condition in the step (7) are as follows: with standing sedimentation 6.5h after 250rpm speed stirring 25min.
Wherein, the sand filtering device is Multistage filtering device, is followed successively by quartz sand-active carbon-quartz sand from top to bottom.
Embodiment 4
The processing method of the emulsion waste liquid of the present embodiment, comprises the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 75 DEG C, is demulsified under agitation, stir 13min, stop
Stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
Wherein, the additive amount of the treatment agent in the step (3) is the 2.5% of emulsion waste liquid weight.
Wherein, the treatment agent is the linear salts substances of 12 carbon to 18 carbon.
Wherein, the mixing speed in the step (3) is 55rpm.
Wherein, compressed air pressure is 0.3Mpa, and the volume ratio of molten gas and emulsion waste liquid in the step (4)
For 1:28.
Wherein, the additive amount of the aluminium polychloride in the step (7) is the 0.3% of emulsion waste liquid weight, described poly-
The additive amount of acrylamide is the 0.2% of emulsion waste liquid weight.
Wherein, the stirring condition in the step (7) are as follows: with standing sedimentation 6h after 230rpm speed stirring 23min.
Wherein, the sand filtering device is Multistage filtering device, is followed successively by quartz sand-active carbon-quartz sand from top to bottom.
Embodiment 5
The processing method of the emulsion waste liquid of the present embodiment, comprises the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 85 DEG C, is demulsified under agitation, stir 18min, stop
Stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
Wherein, the additive amount of the treatment agent in the step (3) is the 3.5% of emulsion waste liquid weight.
Wherein, the treatment agent is the linear salts substances of 12 carbon to 18 carbon.
Wherein, the mixing speed in the step (3) is 65rpm.
Wherein, compressed air pressure is 0.4Mpa, and the volume ratio of molten gas and emulsion waste liquid in the step (4)
For 1:32.
Wherein, the additive amount of the aluminium polychloride in the step (7) is the 0.4% of emulsion waste liquid weight, described poly-
The additive amount of acrylamide is the 0.3% of emulsion waste liquid weight.
Wherein, the stirring condition in the step (7) are as follows: with standing sedimentation 7h after 280rpm speed stirring 28min.
Wherein, the sand filtering device is Multistage filtering device, is followed successively by quartz sand-active carbon-quartz sand from top to bottom.
Comparative example 1
In addition to changing the reaction temperature in step (3) into 65 DEG C, other steps and method and embodiment 1 are unanimously.
Comparative example 2
In addition to changing the reaction temperature in step (3) into 95 DEG C, other steps and method and embodiment 1 are unanimously.
Comparative example 3
In addition to the treatment agent additive amount in step (3) is changed to 1%, other steps and method and embodiment 1 are unanimously.
Comparative example 4
In addition to the treatment agent additive amount in step (3) is changed to 5%, other steps and method and embodiment 1 are unanimously.
Comparative example 5
In addition to saving step (5), other steps and method and embodiment 1 are unanimously.
Comparative example 6
In addition to saving step (7), other steps and method and embodiment 1 are unanimously.
Comparative example 7
In addition to saving step (8), other steps and method and embodiment 1 are unanimously.
Experimental example 1
It will use the method for 1-5 of the embodiment of the present invention and comparative example 1-4 treated that emulsion waste liquid (gives up i.e. in water collecting pit
Water) in Arlacel-80 and polybutene succinimide's content test, concrete outcome is shown in Table 1.
Table 1
As shown in Table 1, the Arlacel-80 in the method for 1-5 treated emulsion waste liquid and poly- fourth through the embodiment of the present invention
The content of alkene succimide is lower, also, the content of the Arlacel-80 and polybutene succinimide in embodiment 3 is minimum, real
Applying example 3 is optimal processing method, therefore, emulsion waste liquid can be effectively treated using processing method of the invention, meanwhile, by
Comparative example 1 and comparative example 2 are it is found that the temperature of demulsification reaction is higher than 90 DEG C or can all influence emulsion waste liquid lower than 70 DEG C
Treatment effect, and by comparative example 3 and comparative example 4 it is found that the additive amount for the treatment of agent all can be influenced lower than 2% or higher than 4%
The treatment effect of emulsion waste liquid.
Experimental example 2
It will use the method for 1-5 of the embodiment of the present invention and comparative example 5-7 treated that emulsion waste liquid (gives up i.e. in water collecting pit
Water) in oil content and COD content tested, specific test result is shown in Table 2.
Table 2
As shown in Table 2, the oil content in the method for 1-5 treated emulsion waste liquid and COD through the embodiment of the present invention
Content is lower, also, the content of the oil content and COD in embodiment 3 is minimum, and embodiment 3 is optimal processing method, also, by
For comparative example 5 it is found that by water filling advantageously reduces oil content and COD content in emulsion waste liquid after air bearing, comparative example 6 can
Know, oil content and COD content are advantageously reduced by the flocculating setting of aluminium polychloride and polyacrylamide, and by comparative example 7
It is found that sand filtering device is arranged, oil content and COD content are advantageously reduced.
In summary, creativeness of the invention is mainly reflected in the following aspects:
(1) present invention makes emulsifier generate reaction by addition treatment agent, automatic to disintegrate, and reaches to be demulsified and disintegrate, water-oil separating
Effect, to realize the processing of emulsion waste liquid, specifically: emulsifier span -80 used in emulsion is one kind
Oleic acid list sorbitol ester occurs reversible reaction, is decomposed into oleic acid and sorbierite under the alkalescence effect of normal carbon chain amidic-salt,
Lose emulsification, and another emulsifier polyisobutene succinimide, complexing is generated under normal carbon chain amide salt action
Object and lose emulsibility, thus achieve the purpose that be demulsified disintegration water-oil separating；
(2) present invention first filters out solidity impurity in emulsion waste liquid before being demulsified, and is convenient for subsequent demulsification, and pass through control
The additive amount of temperature, mixing speed and treatment agent when system demulsification, so that preferable demulsification is realized, so that emulsion
Waste liquid all decomposes automatically, realizes the purpose of emulsion liquid waste processing.
(3) grease in emulsion waste liquid is layered by the present invention by using pneumatically supported mode, and oil reservoir swims in water layer
It is supreme, it then pumps from the top of decomposition reaction kettle, lower part draining is realized water-oil separating, and then realized to emulsion waste liquid
The purpose of processing, wherein the oil isolated can make boiler oil on a small quantity, collect if measuring greatly and can be used as cutting lubrication
Oil, and separating treatment come out water carry out flocculating setting filtering and etc. processing after, further purified, reach state
Family's industrial wastewater discharge standard.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of processing method of emulsion waste liquid, which is characterized in that comprise the following steps that:
It (1) will be in emulsion waste collection to waste collection pond；
(2) the emulsion waste liquid in waste collection pond is pumped into decomposition reaction kettle；
(3) treatment agent is added into decomposition reaction kettle, is heated to 70-90 DEG C, is demulsified under agitation, stir 10-
20min stops stirring；
(4) from decomposition reaction kettle lower part, it is filled with compressed air into the emulsion waste liquid after demulsification stirring, until emulsion
The grease of waste liquid is completely separated into, and stops inflation；
(5) from decomposition reaction kettle top, to air bearing after fill the water in emulsion waste liquid, until oil-water separation interface reaches preset height
Afterwards, stop water filling；
(6) salt water first is released to water collecting pit, then again by the emulsifier and oil reservoir of remaining decomposition from decomposition reaction kettle lower part
It is put into processing bucket；
(7) aluminium polychloride and polyacrylamide are added in processing bucket, it is agitated to make aluminium polychloride and polyacrylamide
It is mixed with emulsion waste liquid；
(8) by treated in step (7), emulsion waste liquid is pumped into sand filtering device, and water is entered after sand filtering device is handled and is collected
Pond is to recycle.
2. the processing method of emulsion waste liquid according to claim 1, which is characterized in that the place in the step (3)
The additive amount for managing medicament is the 2-4% of emulsion waste liquid weight.
3. the processing method of emulsion waste liquid according to claim 2, which is characterized in that the treatment agent is 12
Carbon to 18 carbon linear salts substances.
4. the processing method of emulsion waste liquid according to claim 1, which is characterized in that stirring in the step (3)
Mixing speed is 50-70rpm.
5. the processing method of emulsion waste liquid according to claim 1, which is characterized in that compression in the step (4)
Air pressure is 0.2-0.5Mpa, and the volume ratio of molten gas and emulsion waste liquid is 1:25-35.
6. the processing method of emulsion waste liquid according to claim 1, which is characterized in that poly- in the step (7)
The additive amount for closing aluminium chloride is the 0.2-0.5% of emulsion waste liquid weight, and the additive amount of the polyacrylamide is emulsion
The 0.1-0.4% of waste liquid weight.
7. the processing method of emulsion waste liquid according to claim 1, which is characterized in that stirring in the step (7)
Mix condition are as follows: with standing sedimentation 5-8h after 200-300rpm speed stirring 20-30min.
8. the processing method of emulsion waste liquid according to claim 1, which is characterized in that the sand filtering device is multistage
Filter device is followed successively by quartz sand-active carbon-quartz sand from top to bottom.
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| CN111056887A (en) * | 2019-12-23 | 2020-04-24 | 青海海西东诺化工有限公司 | Method for producing emulsion explosive by recycling explosive production wastewater |
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