CN105060560B - Waste lubricating oil regeneration production waste water treatment method - Google Patents
Waste lubricating oil regeneration production waste water treatment method Download PDFInfo
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Abstract
The invention discloses a waste lubricating oil regeneration production waste water treatment method. The method comprises 1, dropwisely adding 5-10mL of a sodium dodecyl benzene sulfonate solution with a concentration of 40-150mg/L into 1L of lubricating oil regeneration production waste water subjected to oil removal, and carrying out aeration when the dropwise addition process is started, wherein an aeration rate is 10-60L/h, 2, when the dropwise addition amount is 1/4-1/2 the total dropwise addtion amount, adding 10-30g of hydrotalcite powder of 50-80 meshes into the waste water by 6-8 steps, and simultaneously, keeping aeration, 3, after dropwise addition, carrying out aeration for 2-3h, and 4, after aeration, carrying out solid-liquid separation to remove precipitates and to obtain a supernatant, and adding acid into the supernatant until pH is 7 so that waste treatment is finished. The method can effectively remove organic sulfur compounds and inorganic ammonium in waste lubricating oil regeneration production waste water, can realize useful substance recovery and basically does not produce secondary waste liquid and waste. The method is simple and efficient and has a low cost and stable effects.
Description
Technical field
The invention belongs to field of environment protection is and in particular to Wastewater Treatment field, more particularly, to a kind of giving up are moistened
Lubricating oil regenerates production wastewater treatment method.
Background technology
Increase with mechanical, vehicle with expanding economy, the application of lubricating oil is increasingly extensive.Lubricating oil is in machine driving
And can go bad during engine lubrication, such as the lubricating oil on the devices such as cooling, transmission, heat treatment is using a period of time
Afterwards, lubrication and its performance indications reduction are necessary for changing oil to a certain extent, and oil change can produce substantial amounts of waste hydraulic oil, tooth
Filthy oil of wheel oil and washing parts etc..These waste lubricating oils are often burnt by directly outwelling as waste or as fuel, this
In energy shortage and environmental pollution increasingly serious today, not only cause the significant wastage of resource, and it is dirty to exacerbate environment
Dye.Due to also containing substantial amounts of, of great value lube base oil, therefore waste lubricating oil reclaiming profit in waste lubricating oil
With not only improving and economizing on resources, turn waste into wealth, so that petroleum resources is fully used, be also prevented from environmental pollution, have and very may be used
The economic benefit seen and social benefit.
At present, the regeneration technology of domestic waste lubricating oil mainly include distillation-pickling-clay-filtered technique, sedimentation-pickling-
Clay-filtered technique, sedimentation-distillation-pickling-calcium soil process for refining etc., new technique is towards Hydrofining Technology direction
Development.At present when waste lubricant oil regeneration produces, raw material needs to lift lubrication through processes such as hydrofinishing, air stripping, alkali cleanings
The quality of oil product, obtains qualified high-quality lubricating oil oil product after refining, also produces a large amount of waste water simultaneously, have in waste water
The chemical analysis such as machine sulfide, inorganic ammonium salt, and pH is generally more than 10, such direct discharging of waste water can cause very to environment
Serious pollution, is also the waste to resource simultaneously.And there is no the treatment technology being specifically designed for this waste water on the market now.
Content of the invention
In view of this, it is an object of the invention to provide a kind of waste lubricant oil regeneration production wastewater treatment method, can either
Effectively remove inorganic ammonium salt and the organic sulfur compound in waste water, reduce environmental pollution；It is capable of the recovery to utility again,
Efficent use of resources.
A kind of waste lubricant oil regeneration production wastewater treatment method, comprises the following steps：
Producing to the 1L waste lubricant oil regeneration after oil removing and being added dropwise over 5～10mL concentration in waste water is 40～150mg/L
Dodecylbenzene sodium sulfonate solution, start while instillation aeration (that is, when start instill when start aeration), aeration rate is
10～60L/h；When dodecylbenzene sodium sulfonate solution infusion volume be total infusion volume 1/4～1/2 when, start in waste water points 6
Add 10～30g, the brucite powder of 50～80 mesh～8 times, keep aeration simultaneously；After being added dropwise to complete, continue aeration 2～3h；
After aeration terminates, solid-liquid separation precipitates, and obtains supernatant, acid adding is neutralized to neutrality, completes wastewater treatment, after the completion of process
Waste water, can directly discharge.
Described oil removing is oil removal treatment method commonly used in the prior art, for example, gravitational separation process etc..
The pH value that described waste lubricant oil regeneration produces waste water is more than 10, and the temperature that described waste lubricant oil regeneration produces waste water is
20～50 DEG C.Because, in commercial production, it is continuously to be passed in processing meanss to carry out even that described waste lubricant oil regeneration produces waste water
Continuous wastewater treatment, therefore, in whole wastewater treatment process, the pH value that described waste lubricant oil regeneration produces waste water can maintain always
More than 10, and temperature maintains 20～50 DEG C.If it is impossible to maintain above-mentioned pH value and temperature in actual treatment, permissible
Adjust pH value by way of adding alkali liquor, by way of heating, adjust temperature.
Described waste lubricant oil regeneration produces in waste water, and the concentration of ammonia nitrogen is 500～2000mg/L, the concentration of organic sulfur compound
For 50～150mg/L.
Described be added dropwise over, its purpose essentially consists in control surface activating agent dodecylbenzene sodium sulfonate solution in system
Instantaneous concentration, therefore, be lentamente added dropwise in principle.In view of Deca speed for total aeration time shadow
Ring, preferably take 5～10 droplets/minute, save resources as far as possible while realizing stripping effect.
Preferably in technical scheme, total infusion volume of described dodecylbenzene sodium sulfonate solution is 10mL, and concentration is
150mg/L.
Preferably in technical scheme, described aeration rate is 60L/h.
Described brucite can be commercially available commodity it is also possible to be prepared according to prior art, its technology of preparing is many institutes
Known.Brucite chemical structure of general formula is：[M2+ 1-xM3+ x(OH)2]x+[(An-)x/n·mH2O], wherein M2+For Mg2+, Ni2+,
Mn2+, Zn2+, Ca2+, Fe2+, Cu2+Deng any one in divalent metal；M3+For Al3+, Cr3+, Fe3+, Co3+Etc. trivalent gold
Belong to any one in cation；An-For anion, such as CO3 2-, NO3 -, Cl-, OH-, SO4 2-, PO4 3-Deng arbitrary in inorganic ionss
Kind；X=0.5～0.15；M2+/M3+=1～5.
Preferably in technical scheme, described brucite is magnesium aluminum-hydrotalcite.
Preferably in technical scheme, the total amount of described brucite powder is 30g.
Preferably in technical scheme, described acid adding is neutralized to neutrality, is that the hydrochloric acid that concentration is 1～2mol/L is adjusted
PH value is to neutrality.
Detect to using the waste water after the inventive method before processing, find：After processing through the inventive method, ammonium removes
Rate up to more than 98%, the clearance of organic sulfur compound is up to more than 99%, and the waste water after process reaches discharge standard.
In the inventive method, waste water is removed using the method that surfactant sodium dodecyl base benzene sulfonic acid sodium salt solution participates in stripping
In Inorganic Ammonium, specifically, added by way of Deca surfactant sodium dodecyl base benzene sulfonic acid sodium salt solution and simultaneously plus
The method entering brucite, can efficiently control surfactant sodium dodecyl base benzene sulfonic acid sodium salt solution instantaneously dense in system
Degree, it is to avoid produce foam in liquid level, strengthening gas-liquid mass transfer performance, effectively increasing free state ammonia mass transfer rate, thus contributing to
Stripping efficiently removes the Inorganic Ammonium in waste water.And, under aeration agitation, add while brucite powder additionally it is possible to make
Dodecylbenzene sodium sulfonate is switched to the organic micelle of lamella intermediate formation of brucite such that it is able to adsorb organic sulfur compound shape
Become precipitation, through solid-liquid separation precipitation, the organic sulfur compound in waste water can be removed；Discharge supernatant, acid adding is neutralized to neutrality,
Complete wastewater treatment.
Compared with prior art, the present invention has following beneficial technique effect：
Provide and process the method that described waste lubricant oil regeneration produces waste water, can effectively remove waste lubricant oil regeneration and produce
Organic sulfur compound in waste water and Inorganic Ammonium are so that the waste water after processing reaches discharge standard；And, stripping Inorganic Ammonium produces
Ammonia can recycle, in wastewater treatment add surfactant sodium dodecyl base benzene sulfonic acid sodium salt and brucite by with organic
The precipitation that sulfide is formed, it is also possible to recycle, efficiently utilizes resource；And, whole wastewater treatment process will not produce
Raw secondary pollution.The inventive method is simple, efficient, low cost, effect stability.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.
In following examples, ammonia nitrogen is measured using salicylic acid spectrophotography HJ 536-2009, using determining total organic carbon
Instrument measures organic sulfur compound.
Waste lubricant oil regeneration in following examples produces waste water, has all carried out oil removing according to conventional gravitational separation process
Process, pH value is more than 10, temperature is 20～50 DEG C, wherein the concentration of ammonia nitrogen is 500～2000mg/L, the concentration of organic sulfur compound
For 50～150mg/L.
Embodiment 1
Waste lubricant oil regeneration after oil removing produces waste water, and water quality situation is：PH is 11.5,49 DEG C of water temperature, ammonia nitrogen 1850mg/
L, the concentration of organic sulfur compound is 137mg/L.
To in the 1L waste lubricant oil regeneration production waste water after oil removing, with the speed of 5 droplets/minute, dropwise (typically every for two
1/10th milliliters) add the dodecylbenzene sodium sulfonate solution that 10mL concentration is 40mg/L, start when starting and instilling to expose
Gas, aeration rate 60L/h；When infusion volume be total infusion volume 1/2 when, start in waste water point to add for 8 times 30g, 80 purposes commercially available
Magnesium aluminum-hydrotalcite powder, after being added dropwise to complete, continues aeration 3h, aeration terminates postprecipitation, solid-liquid separation, and supernatant adds 2mol/L's
Hydrochloric acid is neutralized to neutrality, as processes the waste water completing, and can directly discharge.
Waste water after processing in embodiment 1 is detected, finds：The clearance of ammonium ion reaches 96.2%, organic sulfur
The clearance of compound is 98.2%, can directly discharge.
Embodiment 2
Waste lubricant oil regeneration after oil removing produces waste water, and water quality situation is：PH is 10.5,48 DEG C of water temperature, ammonia nitrogen 580mg/
L, the concentration of organic sulfur compound is 65mg/L.
To in the 1L waste lubricant oil regeneration production waste water after oil removing, with the speed of 10 droplets/minute, dropwise (typically every is
1/20th milliliter) add the dodecylbenzene sodium sulfonate solution that 5mL concentration is 150mg/L, start when starting and instilling
Aeration, aeration rate 10L/h；When infusion volume be total infusion volume 1/4 when, start in waste water point to add 10g, the cities of 50 mesh 6 times
Sell zinc-aluminum hydrotalcite powder, after being added dropwise to complete, continue aeration 2h, aeration terminates postprecipitation, solid-liquid separation, and supernatant adds 1mol/L
Hydrochloric acid be neutralized to neutrality, as process the waste water completing, can directly discharge.
Waste water after processing in embodiment 2 is detected, finds：The clearance of ammonium ion reaches 92.6%, organic sulfur
The clearance of compound is 93.5%, can directly discharge.
Embodiment 3
Waste lubricant oil regeneration after oil removing produces waste water, and water quality situation is：PH is 11,50 DEG C of water temperature, ammonia nitrogen 1980mg/L,
The concentration of organic sulfur compound is 146mg/L.
To in the 1L waste lubricant oil regeneration production waste water after oil removing, with the speed of 6 droplets/minute, dropwise (typically every for two
1/10th milliliters) add the dodecylbenzene sodium sulfonate solution that 8mL concentration is 100mg/L, start when starting and instilling to expose
Gas, aeration rate 60L/h；When infusion volume be total infusion volume 1/2 when, start in waste water point to add for 8 times 30g, 80 purposes commercially available
Magnesium aluminum-hydrotalcite powder, after being added dropwise to complete, continues aeration 3h, aeration terminates postprecipitation, solid-liquid separation, and supernatant adds 2mol/L's
Hydrochloric acid is neutralized to neutrality, as processes the waste water completing, and can directly discharge.
Waste water after processing in embodiment 3 is detected, finds：The clearance of ammonium ion reaches 95.3%, organic sulfur
The clearance of compound is 96.5%, can directly discharge.
Embodiment 4
Waste lubricant oil regeneration after oil removing produces waste water, and water quality situation is：PH is 11.5,49 DEG C of water temperature, ammonia nitrogen 1790mg/
L, the concentration of organic sulfur compound is 149mg/L.
To in the 1L waste lubricant oil regeneration production waste water after oil removing, with the speed of 6 droplets/minute, dropwise (typically every for two
1/10th milliliters) add the dodecylbenzene sodium sulfonate solution that 10mL concentration is 150mg/L, start when starting and instilling to expose
Gas, aeration rate 60L/h；When infusion volume be total infusion volume 1/2 when, start in waste water point to add for 8 times 30g, 80 purposes commercially available
Magnesium aluminum-hydrotalcite powder, after being added dropwise to complete, continues aeration 3h, aeration terminates postprecipitation, solid-liquid separation, and supernatant adds 1mol/L's
Hydrochloric acid is neutralized to neutrality, as processes the waste water completing, and can directly discharge.
Waste water after before processing in embodiment 4 is detected, finds：The clearance of ammonium ion reaches 98.2%, organic
The clearance of sulfide is 99.5%, can directly discharge.
It should be understood by those skilled in the art that the foregoing is only several specific embodiments of the present invention, the present invention
It is not limited to that.It should be pointed out that for the person of ordinary skill of the art, many deformation can also be made and improve,
All without departing from the deformation described in claim or improve be regarded as protection scope of the present invention.
Claims (7)
1. a kind of waste lubricant oil regeneration production wastewater treatment method, comprises the following steps：
Produce be added dropwise over that 5～10mL concentration is 40～150mg/L in waste water ten to the 1L waste lubricant oil regeneration after oil removing
Dialkyl benzene sulfonic acids sodium solution, starts aeration while instillation, aeration rate is 10～60L/h；When dodecylbenzene sodium sulfonate is molten
When the infusion volume of liquid is the 1/4～1/2 of total infusion volume, start to divide 6～8 addition 10～30g, 50～80 mesh altogether in waste water
Brucite powder, simultaneously keep aeration；After being added dropwise to complete, continue aeration 2～3h；After aeration terminates, solid-liquid separation precipitates,
Obtain supernatant, acid adding is neutralized to neutrality, completes wastewater treatment.
2. waste lubricant oil regeneration production wastewater treatment method as claimed in claim 1 it is characterised in that described waste lubricating oil again
The pH value producing waste water is more than 10, and the temperature that described waste lubricant oil regeneration produces waste water is 20～50 DEG C.
3. waste lubricant oil regeneration production wastewater treatment method as claimed in claim 1 it is characterised in that described waste lubricating oil again
Produce in waste water, the concentration of ammonia nitrogen is 500～2000mg/L, the concentration of organic sulfur compound is 50～150mg/L.
4. waste lubricant oil regeneration production wastewater treatment method as claimed in claim 1 is it is characterised in that described detergent alkylate
Total infusion volume of sodium sulfonate solution is 10mL, and concentration is 150mg/L.
5. waste lubricant oil regeneration production wastewater treatment method as claimed in claim 1 is it is characterised in that described aeration rate is
60L/h.
6. waste lubricant oil regeneration production wastewater treatment method as claimed in claim 1 is it is characterised in that described brucite is
Magnesium aluminum-hydrotalcite.
7. waste lubricant oil regeneration production wastewater treatment method as claimed in claim 6 is it is characterised in that described brucite powder
Total amount be 30g.
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| CN106811282A (en) * | 2016-12-09 | 2017-06-09 | 陈维国 | A kind of potent waste lubricating oil cleanser |
| CN112374703A (en) * | 2018-06-26 | 2021-02-19 | 杭州绿一环保技术有限公司 | Processing system of aircraft engine oil waste water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863043A (en) * | 2012-09-19 | 2013-01-09 | 常州大学 | Organic hydrotalcite synthesis and wastewater treatment integrated technique |
| CN102863044A (en) * | 2012-09-19 | 2013-01-09 | 常州大学 | Method for synchronously processing washing wastewater and organic chemical industrial wastewater |
| CN102976517A (en) * | 2012-11-28 | 2013-03-20 | 常州大学 | Method for treating industrial pickling wastewater |
| CN103263892A (en) * | 2013-05-31 | 2013-08-28 | 北京化工大学 | Preparation and application of chromotropic acid intercalated hydrotalcite composite material |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863043A (en) * | 2012-09-19 | 2013-01-09 | 常州大学 | Organic hydrotalcite synthesis and wastewater treatment integrated technique |
| CN102863044A (en) * | 2012-09-19 | 2013-01-09 | 常州大学 | Method for synchronously processing washing wastewater and organic chemical industrial wastewater |
| CN102976517A (en) * | 2012-11-28 | 2013-03-20 | 常州大学 | Method for treating industrial pickling wastewater |
| CN103263892A (en) * | 2013-05-31 | 2013-08-28 | 北京化工大学 | Preparation and application of chromotropic acid intercalated hydrotalcite composite material |
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Effective date of registration: 20220125 Address after: 213155 No. 88, Daru mu, Wuxiang village committee, Huangli Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Zhongwu Changrun Huanneng Technology Co.,Ltd. Address before: 213155 Huang Li Zhen Wu Xiang Cun, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU CHANGRUN PETROLEUM Co.,Ltd. |
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