CN104003549B - Waste emulsified mixture treatment system - Google Patents
Waste emulsified mixture treatment system Download PDFInfo
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- CN104003549B CN104003549B CN201410225131.XA CN201410225131A CN104003549B CN 104003549 B CN104003549 B CN 104003549B CN 201410225131 A CN201410225131 A CN 201410225131A CN 104003549 B CN104003549 B CN 104003549B
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Abstract
Present invention is disclosed a kind of waste emulsified mixture treatment system, it is characterized in that it comprises: storage waste emulsified mixture also provides the water collecting basin of waste emulsified mixture charging; Be connected with water collecting basin, and regulate waste emulsified mixture pH to the first pH regulator pond of alkalescence; Be connected with the first pH regulator pond, and the breakdown of emulsion pond of breakdown of emulsion reaction is carried out to waste emulsified mixture; Be connected with breakdown of emulsion pond, and the oil trap of oily water separation is carried out to waste emulsified mixture; Be connected with oil trap, and the pH value of waste emulsified mixture be adjusted to the second pH regulator pond of 7 ~ 8; And the organic reaction pond connected successively after this second pH regulator, soon mixed pond, slow mixed pond and settling tank.This waste emulsified mixture treatment system can make the chemical oxygen demand (COD) of waste liquid (COD) reduce by 80%, and colourity reduces by 90%, embodies the advantage of clean waste emulsified mixture effectively, and this system architecture is simple, simple to operate, with low cost, the advantages such as energy mass disposal waste liquid.
Description
Technical field
The present invention relates to a kind of waste emulsified mixture treatment system.
Background technology
In mechanical processing industry, cutting and the grinding of metal need use a large amount of emulsion as the use of lubrication, main containing organic oil and tensio-active agent in emulsion, with oil in water emulsion as required dilute with water to add emulsifying agent more formulated, and in order to improve the rust-preventing characteristic of emulsion in the emulsion of machine cut use, also add Sodium Nitrite etc.But emulsion is after repeatedly Reusability, becoming sour in various degree can be there is, performance reduces, regularly replace new emulsion, so just create a large amount of waste emulsified mixture, waste emulsified mixture is except having the harm of general oily(waste)water, due to the effect of tensio-active agent, machinery oil is highly dispersed in water, animals and plants, hydrobiont more easily absorbs, and tensio-active agent itself is also harmful to biology, some water-fast toxic substances also can be made to be dissolved, simultaneously for improving the rust-preventing characteristic of emulsion, the Sodium Nitrite added is easy to change into carcinogenic nitrosamine, the ecosystem is done great damage.Therefore, very urgent to the process of waste emulsified mixture.
Summary of the invention
The object of the invention is to for above-mentioned defect of the prior art, provide a kind of simple to operate, cost is low, the waste emulsified mixture treatment system that processing efficiency is high.
For achieving the above object, present invention employs following technical scheme:. a kind of waste emulsified mixture treatment system, is characterized in that it comprises: storage waste emulsified mixture also provides the water collecting basin of waste emulsified mixture charging; Be connected with water collecting basin, and regulate waste emulsified mixture pH to the first pH regulator pond of alkalescence; Be connected with the first pH regulator pond, and the breakdown of emulsion pond of breakdown of emulsion reaction is carried out to waste emulsified mixture; Be connected with breakdown of emulsion pond, and the oil trap of oily water separation is carried out to waste emulsified mixture; Be connected with oil trap, and the pH value of waste emulsified mixture be adjusted to the second pH regulator pond of 7 ~ 8; And the organic reaction pond connected successively after this second pH regulator, soon mixed pond, slow mixed pond and settling tank.
In addition, the present invention also provides following attached technical scheme:
Also comprise the sludge sump of storage mud, this sludge sump and described settling tank are interconnected.
Aeration stirrer is provided with in described first pH regulator pond, breakdown of emulsion pond, the second pH regulator pond, organic reaction pond and fast mixed pond.
PH controller is provided with in described first pH regulator pond, the second pH regulator pond and organic reaction pond.
Stirrer is provided with in described slow mixed pond.
Also comprise chemicals dosing plant, this chemicals dosing plant comprises: the alkali dosing parts be connected with described first pH regulator pond; The emulsion splitter dosing parts be connected with described breakdown of emulsion pond; The sour dosing parts be connected with described second pH regulator pond; The lacquer mist coagulant dosing parts be connected with described organic reaction pond; The coagulating agent dosing parts be connected with described fast mixed pond; And the flocculation agent dosing parts to be connected with described slow mixed pond.
A treatment process for waste emulsified mixture treatment system, is characterized in that it comprises the steps: 1) in waste emulsified mixture, add alkali, its pH value is adjusted to 9 ~ 10; 2) emulsion splitter is added, and continuous aeration agitation, the add-on of emulsion splitter is 80 ~ 90 liters per hour, and the reaction times is 20 ~ 30 minutes; 3) in waste emulsified mixture, add acid, its pH value is adjusted to 7 ~ 8, afterwards, add lacquer mist coagulant, make the COD of waste emulsified mixture reduce by 60% ~ 70%; 4) add coagulating agent, add-on is 50 ~ 60 liters per hour, and the reaction times is 10 ~ 15 minutes, afterwards, add flocculation agent and constantly stir, the add-on of flocculation agent is 15 ~ 20 liters per hour, reaction times is 20 ~ 25 minutes, and stirring velocity is 1440 revs/min; And 5) by step 4) waste emulsified mixture after coagulation-flocculation precipitates, sedimentation time is 180 ~ 200 minutes, finally discharges.
Described step 2) in emulsion splitter be calcium chloride solution, its concentration is 30%.
Described step 4) in coagulating agent be polymeric aluminum chlorides solution, its concentration is 30%.
Described step 4) in flocculation agent be polyacrylamide, its concentration is 1 ‰.
Compared to prior art, advantage of the present invention is: disclose a kind of waste emulsified mixture treatment system, this system comprises the water collecting basin connected successively, first pH regulator pond, breakdown of emulsion pond, oil trap, second pH regulator pond, organic reaction pond, fast mixed pond, slow mixed pond and settling tank, by carrying out pH regulator to copper-containing wastewater, breakdown of emulsion reacts, the reaction such as oil removal process and coagulation-flocculation makes chemical oxygen demand (COD) in waste liquid (COD) reduce by 80%, colourity reduces by 90%, embody the advantage of clean waste emulsified mixture effectively, and this system architecture is simple, simple to operate, with low cost, the advantages such as energy mass disposal waste liquid.
Accompanying drawing explanation
Fig. 1 is the waste emulsified mixture treatment system schema corresponding to present pre-ferred embodiments.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solution of the present invention is further non-limitingly described in detail.
Shown in Fig. 1 is the basic procedure of waste emulsified mixture treatment system of the present invention, as can be seen from Figure, this waste emulsified mixture treatment system mainly comprise connect successively water collecting basin 1, first pH regulator pond 2, breakdown of emulsion pond 3, oil trap 4, second pH regulator pond 5, organic reaction pond 6, fast mixed pond 7, slow mixed pond 8 and settling tank 9, also comprise chemicals dosing plant 11, aeration stirrer (not shown) and sludge sump 12 simultaneously.Particularly, chemicals dosing plant 11 comprises alkali dosing parts 11a, emulsion splitter dosing parts 11b, sour chemicals dosing plant 11c, lacquer mist coagulant dosing parts 11d, coagulating agent dosing parts 11e and flocculation agent dosing parts 11f, as its name suggests, above-mentioned each dosing parts splendid attire alkali, emulsion splitter, acid, lacquer mist coagulant, coagulating agent and flocculation agent respectively, in the present embodiment, alkali is sodium hydroxide, emulsion splitter is calcium chloride solution, acid is sulfuric acid, and coagulating agent is polymerize aluminum chloride, and flocculation agent is polyacrylamide; Aeration stirrer is separately positioned in the first pH regulator pond 2, pH regulator pond 5, breakdown of emulsion pond 3, second, organic reaction pond 6 and fast mixed pond 7, and it can accelerate the mixing velocity of medicament and waste emulsified mixture, Reaction time shorten; Sludge sump 12 and settling tank 8 are interconnected and for splendid attire mud.
Particularly, water collecting basin 1 is a storage waste emulsified mixture and provides the storage facility of waste emulsified mixture charging, it is configured with lift pump 21 and fluid level controller (not shown), just controlled by this fluid level controller after lift pump 21 starts, when liquid level is too low, lift pump 21 can automatically stop, and when liquid level reaches setting height again, lift pump 21 can restart.
The waste emulsified mixture being extracted water collecting basin 1 by lift pump 21 enters the first pH regulator pond 2, and flooding quantity is 10 cubes per hour.Alkali dosing parts 11a is connected with the first pH regulator pond 2, and therefore, this first pH regulator pond 2 is mainly used in the pH regulator of waste emulsified mixture to alkalescence.This first pH regulator pond 2 is configured with pH controller (not shown), it can the pH value of waste emulsified mixture in detection cell, and the injected volume of controlled alkaline dosing parts 11a, after the first pH regulator pond 2 regulates, the pH of waste emulsified mixture is in alkalescence, and the pH value of its best is 10.
The transport of waste emulsified mixture between the first pH regulator pond 2 and breakdown of emulsion pond 3 is from top to bottom, what namely first flow away is lower floor's waste emulsified mixture in the first pH regulator pond 2, then waste emulsified mixture enters from the Chi Ding in breakdown of emulsion pond 3, therefore ensuing breakdown of emulsion can be made like this to react more abundant, and major cause is pharmacy response is throw on the liquid level of waste emulsified mixture.Emulsion splitter dosing parts 11b is connected with breakdown of emulsion pond 2, add in breakdown of emulsion pond 2 concentration be 30% calcium chloride solution waste emulsified mixture generation breakdown of emulsion is reacted, namely destroy the stabilizing films on droplet interfaces, make oil, water is separated.
The bottom in breakdown of emulsion pond 2 and the bottom of oil trap 3 are interconnected, this oil trap 3 is parallel flow intercepter, inside is provided with oil header (not shown), after waste emulsified mixture waste water enters oil trap 3, sluggish flow in the horizontal direction, in flowing, floatation surface on oil product, is collected oil product by oil header, therefore this oil trap 3 mainly plays and carries out oily water separation to waste emulsified mixture, and is mainly physical reaction.
The upper strata waste emulsified mixture of oil trap 3 is from flowing in the second pH regulator pond 4, acid chemicals dosing plant 11c is connected with the second pH regulator pond 4, this sour chemicals dosing plant 11c is controlled by the pH controller (not shown) be configured on the second pH regulator pond 4, the effect in the second pH regulator pond 4 is that namely pH value is 7 by the pH regulator of waste emulsified mixture for neutral.
The bottom in the second pH regulator pond 4 and the bottom in organic reaction pond 5 are interconnected, lacquer mist coagulant dosing parts 11d adds lacquer mist coagulant to this organic reaction pond 5, be used for COD (chemical oxygen demand (COD)) content of waste emulsified mixture of degrading, with reach can be biochemical object.The upper strata waste emulsified mixture in organic reaction pond 5 is from flowing in fast mixed pond 6, and coagulating agent dosing parts 11e is to this fast mixed pond 6 dosing coagulant, and coagulating agent the best is polymerize aluminum chloride, and concentration is 30%.The bottom in fast mixed pond 6 is interconnected with the bottom in slow mixed pond 7, and flocculation agent dosing parts 11f adds flocculation agent in mixed pond 7 slowly to this, and flocculation agent the best is polyacrylamide, and concentration is 1 ‰; Be provided with stirrer (not shown) in slow mixed pond 7, coagulation process is accelerated in the effect of this stirrer, improves reaction efficiency.
Is settling tank 8 after slow mixed pond 7, and the upper strata waste emulsified mixture in slow mixed pond 7 is from flowing in settling tank 8.Settling tank 8 is inclined tube-type settling tank, and the waste emulsified mixture after comprehensive treating process, in settling tank 8, natural sedimentation occurs, and the mud precipitated extracts through residual sea water pump 13, and is delivered in sludge sump 12, and supernatant liquid after testing after can discharge.
------oil removal---falls COD (chemical oxygen demand (COD))---coagulation-flocculation---precipitation to breakdown of emulsion to utilize the method for this waste emulsified mixture treatment system process waste emulsified mixture to comprise the steps: alkali tune.
1) lift pump 21 is started, the waste emulsified mixture extracted in water collecting basin 1 enters in the first pH regulator pond 2, pH controller detects the pH of waste emulsified mixture in real time, and controls alkali chemicals dosing plant 11a and add to waste emulsified mixture the sodium hydroxide solution that concentration is 30%, and the pH value of waste emulsified mixture is adjusted to 10; In pH regulator process, the aeration stirrer in the first pH regulator pond 2 is also started working, and accelerates the contact of medicament and waste liquid, Reaction time shorten, raises the efficiency.
2) waste emulsified mixture after regulating flows in breakdown of emulsion pond 3, emulsion splitter chemicals dosing plant 11b drops into emulsion splitter in breakdown of emulsion pond 3, aeration stirrer starts to carry out aeration agitation to waste emulsified mixture simultaneously, emulsion splitter is calcium chloride solution, concentration is 30%, add-on is 80 liters per hour, and the reaction times of breakdown of emulsion reaction is 30 minutes.
Calcium chloride Mechanismic mainly contain following some:
A, calcium chloride (CaCl
2) drop into dissociation in waste emulsified mixture and become positive and negative ion, there is strong hydration and namely strive water effect, the free water molecule in waste emulsified mixture is reduced, to oil droplet generation dehydration, thus destroy the hydration layer of waste emulsified mixture oil droplet.
B, in the stable waste emulsified mixture of anion surfactant, add CaCl
2after, calcium ion (Ca
2+) compression double electric layer, reduce zeta-potential, reduce the mutual repulsive force between oil in water emulsion micelle, under van der Waals interaction, likely collision also becomes dispersed oil greatly.
C, Ca
2+water-fast metallic soap can be generated with tensio-active agent to precipitate:
2RSO
3Na+Ca
2+→(RSO
3)
2Ca↓+2Na
+
(RSO
3)
2Ba+Ca
2+→(RSO
3)
2Ca↓+Ba
2+
3) waste emulsified mixture after breakdown of emulsion, from flowing into oil trap 4, carries out physics oil removal by oil trap 4 to it, makes its oily water separation, can remove 90% oil slick.From upper strata, certainly flowed into the second pH regulator pond 5 by the waste emulsified mixture after oil removing, drop into sulfuric acid simultaneously by sour chemicals dosing plant 11c in this second pH regulator pond 5, by the pH regulator of waste emulsified mixture to neutral, namely pH value is 7.The waste emulsified mixture flow forward of the second pH regulator pond 5 lower floor, is introduced into the lower end in organic reaction pond 6, and lacquer mist coagulant chemicals dosing plant 11d drops into lacquer mist coagulant in this organic reaction pond 6, makes the COD of waste emulsified mixture reduce by 60%.
4) through step 3) waste emulsified mixture after process first enters fast mixed pond 7 from upper strata, and then from lower floor, enter slow mixed pond 8, chemicals dosing plant 11 drops into coagulating agent and flocculation agent respectively to these two ponds, makes the suspended particle in water and little oil droplet coagulate the particle and oil bloom of wadding a quilt with cotton into Large stone.Particularly, coagulating agent the best is polymerize aluminum chloride, and concentration is 30%, and add-on is 50 liters per hour, reaction times is 15 minutes, afterwards, then add flocculation agent and constantly stir, flocculation agent the best is polyacrylamide, concentration is 1 ‰, add-on is 15 liters per hour, and the reaction times is 25 minutes, and the stirring velocity of stirrer is 1440 revs/min.
5) by step 4) waste emulsified mixture after coagulation-flocculation from flowing into settling tank, precipitate 180 minutes, after testing errorless rear discharge.
In sum, the waste emulsified mixture after this waste emulsified mixture treatment system process, COD reduces by 80%, and colourity reduces by 90%; It can thus be appreciated that this waste emulsified mixture treatment system is a kind of simple to operate, with low cost, the system that processing efficiency is high, similarly, treatment process is also simple, efficient.
It is pointed out that above-mentioned preferred embodiment is only and technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. a waste emulsified mixture treatment system, is characterized in that it comprises:
Storage waste emulsified mixture also provides the water collecting basin of waste emulsified mixture charging;
Be connected with water collecting basin, and regulate waste emulsified mixture pH to the first pH regulator pond of alkalescence;
Be connected with the first pH regulator pond, and the breakdown of emulsion pond of breakdown of emulsion reaction is carried out to waste emulsified mixture;
Be connected with breakdown of emulsion pond, and the oil trap of oily water separation is carried out to waste emulsified mixture;
Be connected with oil trap, and the pH value of waste emulsified mixture be adjusted to the second pH regulator pond of 7 ~ 8;
And the organic reaction pond connected successively after this second pH regulator, soon mixed pond, slow mixed pond and settling tank.
2. waste emulsified mixture treatment system according to claim 1, it is characterized in that it also comprises the sludge sump of storage mud, this sludge sump and described settling tank are interconnected.
3. waste emulsified mixture treatment system according to claim 1, is characterized in that: be provided with aeration stirrer in described first pH regulator pond, breakdown of emulsion pond, the second pH regulator pond, organic reaction pond and fast mixed pond.
4. waste emulsified mixture treatment system according to claim 1, is characterized in that: be provided with pH controller in described first pH regulator pond, the second pH regulator pond and organic reaction pond.
5. waste emulsified mixture treatment system according to claim 1, is characterized in that: be provided with stirrer in described slow mixed pond.
6. waste emulsified mixture treatment system according to claim 1, is characterized in that it also comprises chemicals dosing plant, and this chemicals dosing plant comprises:
The alkali dosing parts be connected with described first pH regulator pond;
The emulsion splitter dosing parts be connected with described breakdown of emulsion pond;
The sour dosing parts be connected with described second pH regulator pond;
The lacquer mist coagulant dosing parts be connected with described organic reaction pond;
The coagulating agent dosing parts be connected with described fast mixed pond; And
The flocculation agent dosing parts be connected with described slow mixed pond.
7. the treatment process of the waste emulsified mixture treatment system according to any one of claim 1 to 6, is characterized in that it comprises the steps:
1) in waste emulsified mixture, add alkali, its pH value is adjusted to 9 ~ 10;
2) emulsion splitter is added, and continuous aeration agitation, the add-on of emulsion splitter is 80 ~ 90 liters per hour, and the reaction times is 20 ~ 30 minutes, and emulsion splitter used is calcium chloride solution, and its mass percent concentration is 30%;
3) in waste emulsified mixture, add acid, its pH value is adjusted to 7 ~ 8, afterwards, add lacquer mist coagulant, make the COD of waste emulsified mixture reduce by 60% ~ 70%;
4) coagulating agent is added, add-on is 50 ~ 60 liters per hour, and the reaction times is 10 ~ 15 minutes, afterwards, add flocculation agent and constantly stir, the add-on of flocculation agent is 15 ~ 20 liters per hour, and the reaction times is 20 ~ 25 minutes, and stirring velocity is 1440 revs/min, coagulating agent used is polymeric aluminum chlorides solution, its mass percent concentration is 30%, and flocculation agent used is polyacrylamide, and its mass percent concentration is 1 ‰; And
5) by step 4) waste emulsified mixture after coagulation-flocculation precipitates, and sedimentation time is 180 ~ 200 minutes, finally discharges.
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| CN107188334A (en) * | 2017-06-27 | 2017-09-22 | 山东新美达科技材料有限公司 | Waste emulsified mixture processing method and processing system |
| CN107758917A (en) * | 2017-09-18 | 2018-03-06 | 宁波绿色熵海环保科技有限公司 | Emulsion intelligence harmless treatment device |
| CN108178446A (en) * | 2018-01-10 | 2018-06-19 | 中冶华天南京工程技术有限公司 | high-concentration waste emulsion advanced treatment system |
| CN108911260A (en) * | 2018-08-09 | 2018-11-30 | 山西太钢不锈钢股份有限公司 | A kind of waste emulsified mixture treatment process |
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