CN107601774A - High-concentration emulsified liquid processing method and processing system - Google Patents
High-concentration emulsified liquid processing method and processing system Download PDFInfo
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Abstract
The invention discloses a kind of high-concentration emulsified liquid processing method and processing system, including waste emulsified mixture storage tank, acid precipitation reaction tank, oil interceptor, Fenton's reaction tank, filter press, evaporator and biochemical device successively；Biochemical device includes filtrate collecting pit, anaerobic pond and amphimicrobian pond, Aerobic Pond, BAF, MBR membrane cisternas, counter-infiltration pond, chemical oxidation pond and the reuse pool being sequentially connected；Acid precipitation reaction tank is connected with the dosing tank one for adding demulsifier, and Fenton's reaction tank is connected with dosing tank two, the dosing tank three for adding demulsifier and the dosing tank four for adding liquid caustic soda/calcium hydroxide for adding Fenton reagent；Processing method passes sequentially through collection processing, acidifying, one-level coagulating sedimentation, two-stage coagulation precipitation, evaporation process, biochemical treatment and second stage biochemical treatment；Strong with demulsification ability, suitable for the processing of a variety of emulsions, and recycling rate is high, the strong effect of purified treatment ability.
Description
Technical field
The present invention relates to technical field of waste water processing, more specifically, it relates to a kind of high-concentration emulsified liquid processing method
And processing system.
Background technology
In mechanical processing process, it will typically be cooled down with emulsion, lubricate, clean, antirust treatment, machine can be extended
Tool service life, improve machining accuracy；Machine oil and surfactant are mainly contained in emulsion, is used as needed with oil emulsion
Water dilution adds what emulsifying agent was formulated, is mainly derived from the oil removing process before process of surface treatment and PCB industries chemistry
Waste water caused by oil removing process before copper facing, graphic plating, brown/melanism；Emulsion is after multiple Reusability, it may occur that
Different degrees of becomes sour, and performance reduces, and new emulsion is regularly replaced, so just generating a large amount of waste emulsified mixtures；Its feature
Various in style, COD and oil content concentration are high, and intractability is big, waste emulsified mixture in addition to the harm with general oily waste water, by
In the effect of surfactant, machinery oil is highly dispersed in water, and animals and plants, aquatile are more easy to absorb, and surface-active
Agent is also harmful to biology in itself, and the noxious material that also some can be made not soluble in water is dissolved.
Conventional waste emulsified mixture processing method includes：Acidization, salting out method, membrane filter method, chemical oxidization method, heating
Deng；Different breaking methods respectively has advantage and disadvantage, but the restricted application of breaking method, fixed method are difficult to adapt to difference
The waste emulsified mixture of type, and for the processing of same type waste emulsified mixture, it tends to be difficult to the change of water quality is adapted to, treatment effect is not
Stable, conventional materialization breaking method reaction time length, very flexible is, it is necessary to add substantial amounts of medicament, caused sludge quantity is very
Greatly, secondary pollution is easily caused.
Salting out method is swift in response, and the demulsification time is short, but often single medicament can not be demulsified, it is necessary to which polytype salt is answered
Match somebody with somebody, the difficulty of increase screening medicament；Membrane filter method demulsification has a wide range of application, but demulsification is undesirable, and pretreatment is wanted
Ask very high, and the problems such as film is dirty stifled serious, and the Membrane cleaning cycle is short be present, it is a certain that above-mentioned each processing method is only applicable to processing
Waste emulsified mixture；But in actual process, it is more to usually contain the species of emulsion, and complicated component, such as：Emulsion gives up
Water, electroplating wastewater, percolate etc., it can not be realized and focused on using single method, and be unable to reach broken well
The effect of breast and degraded CODcr.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to one to provide a kind of high-concentration emulsified liquid processing side
Method, focused on realization, improve its demulsification efficiency and the effect for the COD that degrades.
To achieve the above object, the invention provides following technical scheme：
A kind of high-concentration emulsified liquid processing method, comprises the following steps：
S1, collection processing：The waste emulsified mixture of external reception is collected separately into waste emulsified mixture storage tank, it is right after quiescent setting
The oil slick on waste emulsified mixture storage tank upper strata is collected, and the waste emulsified mixture of waste emulsified mixture storage tank lower floor is passed through to acid precipitation reaction tank；
S2, acidifying：Acidification is carried out to adding the sulfuric acid that pH is 2-2.5 in acid precipitation reaction tank；
S3, one-level coagulating sedimentation：Demulsifier is added to the waste emulsified mixture after acidifying, while it heated, then be passed through to every
Oil sump quiescent setting, upper strata oil slick is discharged into oil recovery apparatus, middle level waste emulsified mixture is passed through into Fenton's reaction tank, lower sediment
Thing is discharged into sludge retracting device；
S4, two-stage coagulation precipitation：Liquid caustic soda or calcium hydroxide is first added the pH value of waste emulsified mixture is adjusted, then to Fenton's reaction tank
Interior addition Fenton reagent carries out oxidation processes, while is passed through compressed air into Fenton's reaction tank and is stirred, oxidization time
After satisfaction, finally add demulsifier and carry out coagulation treatment, after reacted, the filtrate on upper strata is delivered in Fenton's reaction tank
Filtering is compressed in filter press, the filter residue of lower floor, which is discharged into sludge retracting device, to be handled, the filter after filter press press filtration
Liquid is collected into evaporator, and filter residue is delivered to filter residue retracting device and handled；
S5, evaporation process：The pre-heat treatment first is carried out to evaporator filtrate, the waste emulsified mixture after being preheated is distilled, obtained again
To concentrate and distillate, cooling treatment is carried out to distillate, the distillate after being cooled down is discharged into enter into biochemical system again
Row biochemical treatment, concentrate carry out spice incineration disposal after collecting；
S6, biochemical treatment：Distillate after materializing strategy is first passed through to progress in filtrate collecting pit and obtains waste water, to useless breast
Change liquid and carry out first paragraph biochemical treatment, waste water is delivered to anaerobic pond successively, in amphimicrobian pond, using useless Organic substance in water and
Biological bacteria in biochemical system carries out ammonification, hydrolysis, acidifying to organic matter, then and flows into aerobe conjunction is utilized most intimate friend's oxygen pond in
Into, mineralization organics removal, while mixed-liquor return is set, and extended aeration is carried out in the final stage of Aerobic Pond process
Processing, waste water is after handling reprecipitation, and the sludge part backflow after precipitation, excess sludge enters sludge concentration tank, and waste water is defeated
Deliver in the BAF digested for removing the ammonia nitrogen that organic matter is simultaneously remaining to its in waste emulsified mixture；
S7, second stage biochemical treatment：After Air Exposure, waste water is filtered by MBR membrane cisternas, the sludge of MBR membrane cisternas
Amphimicrobian pond or Aerobic Pond, and periodically outer row are back to, the concentrated water of MBR membrane cisternas is discharged into inorganic wastewater high-salt wastewater pond and enters steaming
Handled in hair tank, secondly waste water carries out counter-infiltration by counter-infiltration pond to waste emulsified mixture, and last waste water enters chemical oxidation
Pond carries out oxidation reaction and it is sterilized, and waste water carries out chemical break oxidation with sodium hypochlorite and carries out the ammonia nitrogen in waste water
Oxidation becomes nitrogen, and the bacterium in waste water kill removing, and is passed through after making waste water stably reaching standard in reuse pool, processing obtains
Ammonium chloride evaporation condensed water water produced after RO counter-infiltrations enter back into MBR membrane cisternas and handled, concentrated water enters in anaerobic pond
Row circular treatment.
It is arranged such, the waste emulsified mixture of external reception is collected separately to waste emulsified mixture storage tank first, when waste emulsified mixture, contained
Oily waste water run up to it is a certain amount of after, manually check waste emulsified mixture tank level, the oil slick of waste emulsified mixture storage tank at the middle and upper levels passed through
Manually it is collected, waste emulsified mixture storage tank lower floor waste emulsified mixture is then pumped into acid precipitation reaction tank and handled, and first it is acidified,
Moieties are precipitated, while kill part mushroom；Sunk afterwards by adding demulsifier progress one-level coagulation in acid condition
Form sediment, again by two-stage coagulation precipitation is carried out under conditions of neutrality, successively add demulsifier and carry out coagulation treatment, pass through hydroxyl
The organic matter of base free radical cracking difficult degradation, improve the colloidal solid of inorganic nature and the precipitation of Organic particle in waste emulsion；Again
By carrying out filtered compressed to the waste emulsified mixture after processing, its filtrate is dispatched into evaporator again is evaporated processing, evaporation point
Evaporate different materials；When water quality reaches biochemical treatment requirement, it is pumped into biochemical treatment process, the waste emulsified mixture after materializing strategy
After allotment in filtrate collecting pit carry out and, to waste emulsified mixture carry out first paragraph biochemical treatment；Waste water is delivered to successively and detested
In oxygen pond, amphimicrobian pond, using the biological bacteria in useless Organic substance in water and biochemical system to organic matter carry out ammonification, hydrolysis,
Acidifying, then and flow into using aerobic biosynthesis, mineralization organics removal in most intimate friend's oxygen pond, simultaneously because in processing system
There is provided mixed-liquor return and in the final stage of catalytic oxidation process, the biochemical treatment residence time is very long, is practically at and prolongs
When aeration phase, there is certain nitrification, denitrification, certain processing is carried out to the ammonia nitrogen in waste water；First paragraph is biochemical
Waste water after processing is after sludge settling, and in BAF, activated sludge can form biomembrane in carrier surface, lead to
Carrier adsorption and enrichment is crossed, removes the organic matter in waste water.Using new and effective biologic packing material as microbe carrier in reactor,
Have the advantages that easy to be filmed, specific surface area are big, coefficient of oxygen utilization is high, the contaminant degradation time is long.It is micro- in the case where supplying oxygen abundance
The pollutant of absorption can progressively be degraded while ammonia nitrogen remaining in waste water is sufficiently nitrified by biology；Through Air Exposure
Afterwards, waste water is filtered by MBR membrane cisternas, the sludge reflux of MBR membrane cisternas is outer to anoxic pond or contact-oxidation pool, and periodically
Row, last waste water enter chemical oxidation pond, and waste water carries out chemical break oxidation with sodium hypochlorite and the ammonia nitrogen in waste water is carried out into oxygen
Change becomes nitrogen, and the bacterium in waste water kill removing, and makes waste water stably reaching standard, it is up to standard after waste water be pumped into plant area's head tank
Each recycle-water point of use is accessed again；Strong with demulsification ability, suitable for the processing of a variety of emulsions, and recycling rate is high, only
Change disposal ability is strong, improves its realization and focuses on, improves demulsification efficiency and the effect for the COD that degrades.
Further set：In the one-level coagulating sedimentation step, PAC mass concentration 8g/L is added in demulsifier, quickly
1min is stirred, then adds the PAM flocculation aid 10mL/L that quality high concentration is 0.01%, 30s is mixed slowly, stands 20min.
It is arranged such, waste emulsified mixture is demulsified, while flocculation aid accelerates the condensation of material to settle again, effective removal portion
Divide the colloidal solid and part Organic particle of inorganic nature.
Further set：In the two-stage coagulation settling step, regulation waste emulsified mixture pH value is to 8, then adds concentration as 30%
H2O2Dosage is 12mL/L, and H2O2：Fe2+=4：1, disposably add FeSO4·7H2O, reaction time 45min, then add
Coagulant PAC dosage 0.3g/L, 5min is mixed slowly, stand 30min.
It is arranged such, in neutral conditions, is added first into organic reaction groove at Fenton reagent progress advanced oxidation
Reason, first makes to aoxidize abundance in its waste emulsified mixture, successively adds PAC and PAM and carries out coagulation treatment, is dropped by hydroxyl radical free radical
The organic matter of difficult degradation is solved, improves the colloidal solid of inorganic nature and the precipitation of Organic particle in waste emulsion.
Further set：In the one-level coagulating sedimentation and two-stage coagulation precipitation demulsifier be Polyferric Sulfate, PAC, PAM,
CaCl2, any one or more in sulfuric acid.
It is arranged such, demulsification sedimentation is carried out to it, improves the performance that emulsifying agent is demulsified to waste emulsified mixture, effectively remove a large amount of
The colloidal solid and part Organic particle of inorganic nature.
Further set：Demulsifier is PAC using proportioning in the one-level coagulating sedimentation:PAM=12：3, two-stage coagulation sinks
Demulsifier is PAC using proportioning in shallow lake:PAM=13：3.
It is arranged such, by being demulsified twice to waste emulsified mixture, part sedimentation first is carried out to it in acid state, after
When phase is in neutral, then demulsification sedimentation is carried out to it, improve the performance that emulsifying agent is demulsified to waste emulsified mixture, effectively remove a large amount of nothings
The colloidal solid and part Organic particle of machine.
Further set：In the collection processing, upper strata oil slick is used for the auxiliary fuel of evaporator in evaporation process step.
It is arranged such, is easy to be collected waste residue the effect of recycling, improves it and use recovery utilization rate.
Another object of the present invention is to provide a kind of high-concentration emulsified liquid processing system, there is realization to focus on, carry
The effect of its high ratio of slope and degraded COD.
A kind of emulsifying liquid waste water processing system, including be sequentially connected for collect waste emulsified mixture waste emulsified mixture storage tank, use
Acid precipitation reaction tank in Production Wastewater By Combined Acidification And Demulsification, for adjust waste emulsified mixture flow and remove its separate the oil interceptor of liquid and suspension,
Divide for the Fenton's reaction tank of waste emulsified mixture progress oxidation processes, the filter press for carrying out sludge pressing processing, for evaporating
Evaporate the evaporator of liquid after filter press press filtration and be connected to carry out biochemical treatment to waste emulsified mixture with the delivery port of evaporator
Biochemical device；The biochemical device includes being sequentially connected to be received for the good waste emulsified mixture of materializing strategy to be carried out to the filtrate of sum
Ji Chi, for anaerobic organism bacterium ammonification, the anaerobic pond of hydrolysis and the amphimicrobian that is hydrolyzed, is acidified are carried out to waste emulsified mixture
It is pond, the Aerobic Pond for removing for easy-to-keep biological synthesis, mineralization organic matter, simultaneously right for removing in waste emulsified mixture organic matter
BAF that its remaining ammonia nitrogen is digested, the MBR membrane cisternas filtered to waste emulsified mixture, waste emulsified mixture is carried out
The counter-infiltration pond of counter-infiltration, waste emulsified mixture is carried out at oxidation reaction and the chemical oxidation pond sterilized to it and collection
The reuse pool of clear water after reason；The acid precipitation reaction tank is connected with the dosing tank one for adding demulsifier, the Fenton's reaction
Tank is connected with dosing tank two, the dosing tank three for adding demulsifier and for annex solution for adding Fenton reagent
The dosing tank four of alkali/calcium hydroxide.
It is arranged such, the waste emulsified mixture of external reception is collected separately to waste emulsified mixture storage tank first, when waste emulsified mixture, contained
Oily waste water run up to it is a certain amount of after, manually check waste emulsified mixture tank level, the oil slick of waste emulsified mixture storage tank at the middle and upper levels passed through
Manually it is collected, waste emulsified mixture storage tank lower floor waste emulsified mixture, which is then pumped into acid precipitation reaction tank, first to carry out acidifying and handled, by portion
Divide species precipitate, while kill part mushroom；Afterwards one is carried out by adding demulsifier by dosing tank one in acid condition
Level coagulating sedimentation, then separated by oil interceptor progress oil slick and waste liquid；Secondly, dosing tank four is passed through in Fenton's reaction tank
Liquid caustic soda/calcium hydroxide is added, pH is first neutralized and is adjusted to neutrality, then Fenton reagent oxidation processes are added by dosing tank three, finally
Demulsifier is added by dosing tank two and carries out coagulation treatment, the organic matter for difficult degradation of being degraded by hydroxyl radical free radical, is improved
The precipitation of the colloidal solid of inorganic nature and Organic particle in waste emulsion；Then, then by being carried out to the waste emulsified mixture after processing
Filtered compressed, its filtrate is dispatched into evaporator again is evaporated processing, the different material of evaporative fractionation；Treat that water quality reaches biochemical
During processing requirement, be pumped into biochemical device, the waste emulsified mixture after materializing strategy carried out in filtrate collecting pit and；By waste water according to
It is secondary to be delivered to anaerobic pond, in amphimicrobian pond, organic matter is carried out using the biological bacteria in useless Organic substance in water and biochemical system
Ammonification, hydrolysis, acidifying, then and flow into using aerobic biosynthesis, mineralization organics removal in most intimate friend's oxygen pond, with certain
Nitrification, denitrification, certain processing is carried out to the ammonia nitrogen in waste water；Waste water is after sludge settling, in aeration and biological
In filter tank, activated sludge can form biomembrane in carrier surface, be enriched with by carrier adsorption, remove the organic matter in waste water；Instead
Answer in device using new and effective biologic packing material as microbe carrier, there is easy to be filmed, specific surface area is big, coefficient of oxygen utilization is high, dirty
Contaminate the advantages that thing degradation time is long.In the case where supplying oxygen abundance, microorganism can progressively degrade the pollutant of absorption simultaneously
Ammonia nitrogen remaining in waste water is sufficiently nitrified；After BAF is handled, waste water was carried out by MBR membrane cisternas
Filter, the sludge reflux of MBR membrane cisternas is to anoxic pond or contact-oxidation pool, and periodically outer row, last waste water enter chemical oxidation pond, give up
Ammonia nitrogen in waste water is carried out oxidation with the chemical break oxidation of sodium hypochlorite progress and becomes nitrogen by water, and the bacterium in waste water is entered
Row is killed and removed, and makes waste water stably reaching standard, it is up to standard after waste water be pumped into reuse pool and access each recycle-water point of use again；It has demulsification
Ability is strong, and suitable for the processing of a variety of emulsions, and recycling rate is high, and purified treatment ability is strong, improves it and realizes at concentration
Reason, improve demulsification efficiency and the effect for the COD that degrades.
Further set：The Fenton's reaction tank is connected with quenching water column.
It is arranged such, by quenching water column, carries out the gas for being partially soluble in water of reaction generation in Fenton's reaction tank
Remove, reduce the pollution to environment.
Further set：Tail gas collecting device is provided with the top of the acid precipitation reaction tank.
It is arranged such, caused gas after acidifying is collected the effect of classification recycling, reduce to caused by environment
Pollute and improve its recovery utilization rate.
Further set：Agitating device is provided with the Fenton's reaction tank.
Be arranged such, by while plus stir when wanting, improve the mixing uniformity between waste emulsified mixture and medicament.
By using above-mentioned technical proposal, the present invention compares compared with the prior art：It has demulsification ability strong, suitable for more
Kind of emulsion processing, and recycling rate is high, purified treatment ability is strong, improve its realization focus on, improve demulsification efficiency and
Degraded COD effect.
Brief description of the drawings
Fig. 1 is the schematic process flow diagram of high-concentration emulsified liquid processing method and processing system；
Fig. 2 is the attachment structure schematic diagram of Fenton's reaction tank.
In figure：1st, waste emulsified mixture storage tank；2nd, acid precipitation reaction tank；3rd, oil interceptor；4th, Fenton's reaction tank；5th, filter press；6th, steam
Send out tank；7th, biochemical device；8th, filtrate collecting pit；9th, anaerobic pond；10th, amphimicrobian pond；11st, Aerobic Pond；12nd, aeration and biological is filtered
Pond；13rd, MBR membrane cisternas；14th, counter-infiltration pond；15th, chemical oxidation pond；16th, reuse pool；17th, dosing tank one；18th, exhaust collection fills
Put；19th, dosing tank two；20th, dosing tank three；21st, dosing tank four；22nd, quenching water column；23rd, agitating device；24th, filter residue recovery dress
Put.
Embodiment
High-concentration emulsified liquid processing method and processing system are described further referring to figs. 1 to Fig. 2.
Embodiment 1：A kind of processing method of high-concentration emulsified liquid, with reference to shown in Fig. 1 and Fig. 2, comprises the following steps：S1、
Collection is handled：The waste emulsified mixture of external reception is collected separately into waste emulsified mixture storage tank 1, after quiescent setting, to useless emulsification
The oil slick on the upper strata of liquid storage tank 1 is collected, and the waste emulsified mixture of the lower floor of waste emulsified mixture storage tank 1 is passed through to acid precipitation reaction tank 2.
S2, acidifying：Acidification is carried out to the sulfuric acid that addition pH is 2-2.5 in acid precipitation reaction tank 2.
S3, one-level coagulating sedimentation：Demulsifier is added to the waste emulsified mixture after acidifying, while it is heated, then is passed through
To the quiescent setting of oil interceptor 3, upper strata oil slick is discharged into oil recovery apparatus, middle level waste emulsified mixture is passed through into Fenton's reaction tank 4, under
Layer sediment is discharged into sludge retracting device；Demulsifier is Polyferric Sulfate, PAC, PAM, CaCl2, any one or more in sulfuric acid,
It is preferably PAC and PAM combinations in this programme, wherein, PAC mass concentration 8g/L is added, the use of proportioning is PAC:PAM=12：3,
Quick stirring 1min, then add to the PAM flocculation aid 10mL/L that mass concentration is 0.01%, 30s is mixed slowly, stands 20min.
S4, two-stage coagulation precipitation：Waste emulsified mixture pH value is acidity after first demulsification, first adds liquid caustic soda or calcium hydroxide to useless breast
The pH value for changing liquid is adjusted to 8；Fenton reagent is added into Fenton's reaction tank again and carries out oxidation processes, wherein, addition is dense
Spend the H for 30%2O2Dosage is 12mL/L, and H2O2：Fe2+=4：1, disposably add FeSO4•7H2O, reaction time 45min,
Compressed air is passed through into Fenton's reaction tank 4 to be stirred, then adjust waste emulsified mixture pH value to 8 simultaneously；Reusing proportioning is
PAC:PAM=13：3 carry out coagulation treatment, coagulant PAC dosage 0.3g/L, mix slowly 5min, stand 30min；Oxygen
After changing time satisfaction, the filtrate on upper strata, which is delivered in filter press 5, in Fenton's reaction tank 4 is compressed filtering, the filter residue row of lower floor
Enter to sludge retracting device and handled, the filtrate after the press filtration of filter press 5 is collected into evaporator 6, and filter residue is delivered to filter residue
Retracting device 24 is handled.
S5, evaporation process：The pre-heat treatment first is carried out to the filtrate of evaporator 6, i.e. float on the upper strata obtained in being handled by collection
Oil, the auxiliary fuel for combustion chamber in evaporator 6；Waste emulsified mixture after being preheated is distilled again, obtain concentrate and
Distillate, cooling treatment being carried out to distillate, the distillate after being cooled down is discharged into biochemical system again carries out biochemical treatment,
Concentrate carries out spice incineration disposal after collecting.
S6, biochemical treatment：Distillate after materializing strategy is first passed through to progress in filtrate collecting pit 8 and obtains waste water,
First paragraph biochemical treatment is carried out to waste emulsified mixture；Waste water is delivered to anaerobic pond 9 successively, in amphimicrobian pond 10, utilizes waste water
Biological bacteria in middle organic matter and biochemical system carries out ammonification, hydrolysis, acidifying to organic matter；Again and flow into sharp in most intimate friend's oxygen pond 11
With aerobic biosynthesis, mineralization organics removal, while mixed-liquor return is set, and in the last rank of the process of Aerobic Pond 11
The processing of Duan Jinhang extended aerations, has certain nitrification, denitrification, and certain place is carried out to the ammonia nitrogen in waste emulsified mixture
Reason.
Waste water is after handling reprecipitation, and the sludge part backflow after precipitation, excess sludge enters sludge concentration tank, and waste water exists
It is delivered in the BAF 12 digested for removing the ammonia nitrogen that organic matter is simultaneously remaining to its in waste emulsified mixture；It is living
Property sludge can carrier surface formed biomembrane, be enriched with by carrier adsorption, remove waste water in organic matter；Used in reactor
New and effective biologic packing material as microbe carrier, have easy to be filmed, specific surface area is big, coefficient of oxygen utilization is high, contaminant degradation when
Between it is long the advantages that；In the case where supplying oxygen abundance, the pollutant of absorption can progressively be degraded while to residual in waste water by microorganism
Remaining ammonia nitrogen is sufficiently nitrified.
S7, second stage biochemical treatment：After BAF 12, waste water is filtered by MBR membrane cisternas 13, passed through
After crossing MBR membrane filtrations, the sludge reflux of MBR membrane cisternas 13 is to amphimicrobian pond 10 or Aerobic Pond 11, and periodically outer row；MBR membrane cisternas
13 concentrated water is discharged into inorganic wastewater high-salt wastewater pond into being handled in evaporator 6；Secondly waste water is right by counter-infiltration pond 14
Waste emulsified mixture carries out counter-infiltration, and last waste water, which enters chemical oxidation pond 15, oxidation reaction and it is sterilized, waste water with
Ammonia nitrogen in waste water is carried out oxidation and becomes nitrogen by the chemical break oxidation of sodium hypochlorite progress, and the bacterium in waste water is killed
Remove, be passed through after making waste water stably reaching standard in reuse pool 16, the ammonium chloride evaporation condensed water for handling to obtain is after RO counter-infiltrations
Production water enters back into MBR membrane cisternas 13 and handled, and concentrated water, which enters, carries out circular treatment in anaerobic pond 9.
Embodiment 2：A kind of emulsifying liquid waste water processing system, with reference to shown in Fig. 1 and Fig. 2, including it is sequentially connected for collecting
The waste emulsified mixture storage tank 1 of waste emulsified mixture, the acid precipitation reaction tank 2 for Production Wastewater By Combined Acidification And Demulsification, for adjusting waste emulsified mixture flow and removal
It separates the oil interceptor 3 of liquid and suspension, the Fenton's reaction tank 4 of oxidation processes is carried out for waste emulsified mixture, for carrying out dirt
The filter press 5 of mud squeezing processing, evaporator 6 for liquid after the press filtration of evaporative fractionation filter press 5 and go out with evaporator 6
The mouth of a river is connected to carry out waste emulsified mixture the biochemical device 7 of biochemical treatment.
Wherein, biochemical device 7 includes being sequentially connected and received for the good waste emulsified mixture of materializing strategy to be carried out to the filtrate of sum
Collect pond 8, ammonification, the anaerobic pond 9 hydrolyzed and the amphimicrobian for being hydrolyzed, being acidified are carried out to waste emulsified mixture for anaerobic organism bacterium
Pond 10, the Aerobic Pond 11, same for removing organic matter in waste emulsified mixture for removing for easy-to-keep biological synthesis, mineralization organic matter
When the ammonia nitrogen remaining to its digested BAF 12, waste emulsified mixture is filtered MBR membrane cisternas 13, to useless breast
Change liquid to carry out the counter-infiltration pond 14 of counter-infiltration, carry out waste emulsified mixture oxidation reaction and the chemical oxidation pond for sterilizing it
15 and collection processing after clear water reuse pool 16.
Acid precipitation reaction tank 2 is connected with the dosing tank 1 for adding demulsifier, is provided with the top of acid precipitation reaction tank 2
Tail gas collecting device 18；Fenton's reaction tank 4 be connected with for add Fenton reagent dosing tank 2 19, for adding demulsifier
Dosing tank 3 20 and dosing tank 4 21 for adding liquid caustic soda/calcium hydroxide；Simultaneously chilling is connected with Fenton's reaction tank 4
Water tower 22, agitating device 23, i.e. agitating paddle are provided with Fenton's reaction tank 4.
Middle demulsifier is Polyferric Sulfate, PAC, PAM, CaCl in dosing tank 1 and dosing tank 2 192, it is any one in sulfuric acid
Kind or multiple combinations.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of processing method of high-concentration emulsified liquid, it is characterised in that comprise the following steps：
S1, collection processing：The waste emulsified mixture of external reception is collected separately to waste emulsified mixture storage tank（1）In, after quiescent setting,
To waste emulsified mixture storage tank（1）The oil slick on upper strata is collected, waste emulsified mixture storage tank（1）The waste emulsified mixture of lower floor is passed through anti-to acid out
Answer tank（2）；
S2, acidifying：To acid precipitation reaction tank（2）The sulfuric acid that interior addition pH is 2-2.5 carries out acidification；
S3, one-level coagulating sedimentation：Demulsifier is added to the waste emulsified mixture after acidifying, while it heated, then be passed through to every
Oil sump（3）Quiescent setting, upper strata oil slick is discharged into oil recovery apparatus, middle level waste emulsified mixture is passed through to Fenton's reaction tank（4）In, under
Layer sediment is discharged into sludge retracting device；
S4, two-stage coagulation precipitation：Liquid caustic soda or calcium hydroxide is first added the pH value of waste emulsified mixture is adjusted, then to Fenton's reaction tank
（4）Interior addition Fenton reagent carries out oxidation processes, while to Fenton's reaction tank（4）Inside it is passed through compressed air to be stirred, oxygen
After changing time satisfaction, finally add demulsifier and carry out coagulation treatment, after reacted, Fenton's reaction tank（4）Interior upper strata
Filtrate is delivered to filter press（5）Filtering is inside compressed, the filter residue of lower floor, which is discharged into sludge retracting device, to be handled, through press filtration
Machine（5）Filtrate after press filtration is collected to evaporator（6）In, filter residue is delivered to filter residue retracting device（24）Handled；
S5, evaporation process：First to evaporator（6）Filtrate carries out the pre-heat treatment, and the waste emulsified mixture after being preheated is distilled again,
Concentrate and distillate are obtained, cooling treatment is carried out to distillate, the distillate after being cooled down is discharged into biochemical device again（7）
Middle carry out biochemical treatment, concentrate carry out spice incineration disposal after collecting；
S6, biochemical treatment：Distillate after materializing strategy is first passed through to filtrate collecting pit（8）It is interior to carry out and obtain waste water, it is right
Waste emulsified mixture carries out first paragraph biochemical treatment, and waste water is delivered into anaerobic pond successively（9）, amphimicrobian pond（10）It is interior, using useless
Biological bacteria in Organic substance in water and biochemical system carries out ammonification, hydrolysis, acidifying to organic matter, then and flows into most intimate friend's oxygen pond（11）
It is interior to utilize aerobic biosynthesis, mineralization organics removal, while mixed-liquor return is set, and in Aerobic Pond（11）Process
Final stage carries out extended aeration processing, and after handling reprecipitation, the sludge part backflow after precipitation, excess sludge enters waste water
Sludge concentration tank, waste water are being delivered to for removing the exposure that organic matter while the ammonia nitrogen remaining to its are digested in waste emulsified mixture
Gas biofilter（12）It is interior；
S7, second stage biochemical treatment：After Air Exposure, pass through MBR membrane cisternas（13）Waste water is filtered, MBR membrane cisternas
（13）Sludge reflux to amphimicrobian pond（10）Or Aerobic Pond（11）, and periodically outer row, MBR membrane cisternas（13）Concentrated water be discharged into nothing
Machine waste water high-salt wastewater pond enters evaporator（6）Inside handled, secondly waste water passes through counter-infiltration pond（14）Waste emulsified mixture is entered
Row counter-infiltration, last waste water enter chemical oxidation pond（15）Carry out oxidation reaction and it is sterilized, waste water and sodium hypochlorite
Carry out chemical break oxidation the ammonia nitrogen in waste water is carried out into oxidation becoming nitrogen, and the bacterium in waste water kill removing, make to give up
Reuse pool is passed through after water stably reaching standard（16）Interior, the ammonium chloride evaporation condensed water for handling to obtain produces water again after RO counter-infiltrations
Into MBR membrane cisternas（13）Handled, concentrated water enters anaerobic pond（9）Interior carry out circular treatment.
2. the processing method of high-concentration emulsified liquid according to claim 1, it is characterised in that：The one-level coagulating sedimentation and
Demulsifier is any one or more in Polyferric Sulfate, PAC, PAM, CaCl2, sulfuric acid in two-stage coagulation precipitation.
3. the processing method of high-concentration emulsified liquid according to claim 2, it is characterised in that：The one-level coagulating sedimentation step
In rapid, PAC mass concentration 8g/L is added in demulsifier, quickly stirs 1min, then added the PAM that mass concentration is 0.01% and help
Solidifying agent 10mL/L, mixes slowly 30s, stands 20min.
4. the processing method of high-concentration emulsified liquid according to claim 1, it is characterised in that：The two-stage coagulation precipitation step
In rapid, regulation waste emulsified mixture pH value is to 8, then adds the H that concentration is 30%2O2Dosage is 12mL/L, and H2O2：Fe2+=4：1, one
Secondary property adds FeSO4·7H2O, reaction time 45min, then coagulant PAC dosage 0.3g/L are added, 5min is mixed slowly, it is quiet
Put 30min.
5. the emulsifying liquid waste water processing system according to claim 2, it is characterised in that：Broken in the one-level coagulating sedimentation
Emulsion is PAC using proportioning:PAM=12：3, demulsifier is PAC using proportioning during two-stage coagulation precipitates:PAM=13：3.
6. the processing method of high-concentration emulsified liquid according to claim 1, it is characterised in that：In the collection processing, on
Layer oil slick is used for evaporator in evaporation process step（6）Auxiliary fuel.
A kind of 7. emulsifying liquid waste water processing system, it is characterised in that：Including being sequentially connected the useless emulsification for collecting waste emulsified mixture
Liquid storage tank（1）, acid precipitation reaction tank for Production Wastewater By Combined Acidification And Demulsification（2）, for adjust waste emulsified mixture flow and remove its separate liquid and
The oil interceptor of suspension（3）, for waste emulsified mixture carry out oxidation processes Fenton's reaction tank（4）, for carrying out at sludge pressing
The filter press of reason（5）, for evaporative fractionation filter press（5）The evaporator of liquid after press filtration（6）And and evaporator（6）Go out
The mouth of a river is connected to carry out waste emulsified mixture the biochemical device of biochemical treatment（7）；The biochemical device（7）Including being sequentially connected use
In the filtrate collecting pit that the good waste emulsified mixture of materializing strategy is carried out to sum（8）, for anaerobic organism bacterium to waste emulsified mixture carry out
Ammonification, the anaerobic pond of hydrolysis（9）With the amphimicrobian pond for being hydrolyzed, being acidified（10）, for easy-to-keep biological synthesis, mineralization
Remove the Aerobic Pond of organic matter（11）, the exposure that is digested for removing the ammonia nitrogen simultaneously remaining to its of organic matter in waste emulsified mixture
Gas biofilter（12）, the MBR membrane cisternas that are filtered to waste emulsified mixture（13）, to waste emulsified mixture carry out counter-infiltration counter-infiltration pond
（14）, oxidation reaction and the chemical oxidation pond sterilized to it are carried out to waste emulsified mixture（15）And clear water after collection processing
Reuse pool（16）；The acid precipitation reaction tank（2）It is connected with the dosing tank one for adding demulsifier（17）, the Fenton is anti-
Answer tank（4）It is connected with the dosing tank two for adding Fenton reagent（19）, dosing tank three for adding demulsifier（20）, with
And for adding the dosing tank four of liquid caustic soda/calcium hydroxide（21）.
8. emulsifying liquid waste water processing system according to claim 1, it is characterised in that：The Fenton's reaction tank（4）Connection
There is quenching water column（22）.
9. emulsifying liquid waste water processing system according to claim 1, it is characterised in that：In the acid precipitation reaction tank（2）'s
Top is provided with tail gas collecting device（18）.
10. emulsifying liquid waste water processing system according to claim 1, it is characterised in that：In the Fenton's reaction tank（4）It is interior
It is provided with agitating device（23）.
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