CN102491593A - Oily waste water treatment method - Google Patents
Oily waste water treatment method Download PDFInfo
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- CN102491593A CN102491593A CN2011104154664A CN201110415466A CN102491593A CN 102491593 A CN102491593 A CN 102491593A CN 2011104154664 A CN2011104154664 A CN 2011104154664A CN 201110415466 A CN201110415466 A CN 201110415466A CN 102491593 A CN102491593 A CN 102491593A
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- China
- Prior art keywords
- waste
- oil
- oily
- water
- waste water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Activated Sludge Processes (AREA)
Abstract
The invention discloses an oily waste water treatment method, which includes: step a, initially salvaging waste water to remove detached oil in the waste water after oily waste water is led into a sedimentation tank for standing and sedimentation; step b, allowing the initially salvaged waste water to stand and salvaging again after mechanically scattered oil in the waste water is combined into detached oil; step c, removing the mechanically scattered oil by repeating the step b for three to seven times; and step d, sending the waste water with the mechanically scattered oil removed into a treating tank and obtaining the discharged water after treatment by means of activated sludge process. The oily waste water treatment method is simple in method and process, thorough in oil treatment and free of secondary pollution.
Description
Technical field
The present invention relates to sewage disposal technology, particularly a kind of treatment process of oily(waste)water.
Background technology
Mainly contain following several kinds of oils in the oily(waste)water:
(1) free state oil: can rise to the oil slick that liquid level forms oil film or oil reservoir when static rapidly, the particle diameter of this oil droplet is bigger, generally greater than 100 μ m, accounts for the 60-80% of oils total amount in the waste water.
(2) mechanical dispersion attitude oil: oil bead diameter is generally the trickle oil droplet of 10～100 μ m, and the stability in waste water is not high, leaves standstill the formation oil slick that often can mutually combine after for some time.
(3) floatingization attitude oil: oil bead diameter is generally 0.1～2 μ m less than 10 μ m, and this oil droplet has the chemicalstability of height, and tending to becomes stable Emulsion because of containing tensio-active agent in the water.
(4) The dissolved oil: superfine microdispersed oil droplet, oil bead diameter is also littler than floating carburetion, and what have can be little of several nm, just really is dissolved in the oil in the waste water on the chemical concept.
(5) solid attaching oil: the oil droplet that is adsorbed in solid particles surface in the waste water.
Present treatment process is complex process not only, and prior processing is not thorough, has caused the secondary pollution of soil.
Summary of the invention
The objective of the invention is thoroughly to handle the oil in the oily(waste)water,, reduce pollution, help environment protection environment for enterprise has practiced thrift production cost.
Technical scheme of the present invention is: a kind of treatment process of oily(waste)water, and it comprises the following step:
A, oily(waste)water fed salvage for the first time after staticly settling in the settling tank, remove the free state oil in the waste water;
B, will leave standstill, make after mechanical dispersion attitude oil is combined into free state oil in the waste water, salvage through the waste water of first salvaging;
C, repetition b step 3-7 time are removed mechanical dispersed oil;
D, the waste water that will remove mechanical dispersed oil are sent into treating pond, adopt activated sludge process to handle the acquisition water outlet.
Said salvaging is to adopt reticulattion to salvage.
Said salvaging is to adopt oil skimmer vessel in profit layering place free state oil to be removed.
The present invention preferably repeats b step 5 time, is about to waste water and repeats to leave standstill and salvage 5 times.
Active sludge in the said activated sludge process comprises farm manure.
Before active sludge put into treating pond, in farm manure, add glucose earlier and methyl alcohol is cultivated, incubation time is 15-25 days.
The weight part ratio of said farm manure, glucose and methyl alcohol is: 50-75: 1-5: 1-10.
After repeatedly salvaging the mechanical dispersed oil of back removal; Mainly contain floatingization attitude oil and The dissolved oil in the waste water, and the farm manure in the active sludge have aerobic microbiological and other active substance that these floatingization attitudes are oily and The dissolved is oily and other pollutent adsorbs, be decomposed into CO
2And H
2O makes water outlet reach national requirements.
Beneficial effect of the present invention:
1. technology is simple.
2. oil treatment is thorough, can not cause secondary pollution.
Embodiment
Embodiment 1
A kind of treatment process of oily(waste)water comprises the steps:
A, oily(waste)water fed progressively staticly settle and adopt reticulattion or oil skimmer vessel to salvage in the settling tank, clean out the free state oil in the oily(waste)water.
B, waste water leaves standstill once more then, makes it be incorporated into oil slick, salvages cleaning once more., mainly floatingization attitude oil and The dissolved oil in the remaining waste water so through after Pyatyi deposition, the salvaging.
C, remaining waste water is sent into treating pond carry out Wastewater Treated by Activated Sludge Process, active sludge mainly is a farm manure in the treating pond, and this farm manure is available from the orchard; Farm manure is cultivated earlier putting into treating pond, and cultural method is to add glucose and methyl alcohol in the farm manure, and additional proportion is farm manure 50 weight parts; Glucose 1 weight part and methyl alcohol 1 weight part; Cultivated 15 days after stirring, regulate pH value with hydrochloric acid, sheet alkali, pH value maintains 7-8.4.Because adopt farm manure as active sludge, the aerobic microbiological in the farm manure directly resolves into CO with other working substance mass-energy with the waste oil in the waste water
2And H
2O, thus reach the purpose of handling the oil in the waste water.Simultaneously other Pollutant Treatment also had effect preferably.
Embodiment 2
A kind of treatment process of oily(waste)water comprises the steps:
A, oily(waste)water fed progressively staticly settle and adopt reticulattion or oil skimmer vessel to salvage in the settling tank, clean out the free state oil in the oily(waste)water.
B, waste water leaves standstill once more then, makes it be incorporated into oil slick, salvages cleaning once more., mainly floatingization attitude oil and The dissolved oil in the remaining waste water so through after Pyatyi deposition, the salvaging.
C, remaining waste water is sent into treating pond carry out Wastewater Treated by Activated Sludge Process, active sludge mainly is a farm manure in the treating pond, and this farm manure is available from the orchard; Farm manure is cultivated earlier putting into treating pond, and cultural method is to add glucose and methyl alcohol in the farm manure, and additional proportion is farm manure 75 weight parts; Glucose 5 weight parts and methyl alcohol 10 weight parts; Cultivated 25 days after stirring, regulate pH value with hydrochloric acid, sheet alkali, pH value maintains 7-8.4.Because adopt farm manure as active sludge, the aerobic microbiological in the farm manure directly resolves into CO with other working substance mass-energy with the waste oil in the waste water
2And H
2O, thus reach the purpose of handling the oil in the waste water.Simultaneously other Pollutant Treatment also had effect preferably.
Embodiment 3
A kind of treatment process of oily(waste)water comprises the steps:
A, oily(waste)water fed progressively staticly settle and adopt reticulattion or oil skimmer vessel to salvage in the settling tank, clean out the free state oil in the oily(waste)water.
B, waste water leaves standstill once more then, makes it be incorporated into oil slick, salvages cleaning once more., mainly floatingization attitude oil and The dissolved oil in the remaining waste water so through after Pyatyi deposition, the salvaging.
C, remaining waste water is sent into treating pond carry out Wastewater Treated by Activated Sludge Process, active sludge mainly is a farm manure in the treating pond, and this farm manure is available from the orchard; Farm manure is cultivated earlier putting into treating pond, and cultural method is to add glucose and methyl alcohol in the farm manure, and additional proportion is farm manure 60 weight parts; Glucose 1 weight part and methyl alcohol 4 weight parts; Cultivated 25 days after stirring, regulate pH value with hydrochloric acid, sheet alkali, pH value maintains 7-8.4.Because adopt farm manure as active sludge, the aerobic microbiological in the farm manure directly resolves into CO with other working substance mass-energy with the waste oil in the waste water
2And H
2O, thus reach the purpose of handling the oil in the waste water.Simultaneously other Pollutant Treatment also had effect preferably.
Embodiment 4
The oily(waste)water of nitrogen fertilizer production technology compression section discharging, HN3-N is 176.98mg/L, COD is 551.01mg/L; PH value is 6.5, and after handling through the method for embodiment 3, effluent quality is limpid; Each item index reaches the sewage discharge index of national regulation; HN3-N is 7.32mg/L, and COD is 33.24mg/L, and pH value is 8.1.
This method technology is simple, and comparatively thorough to oil handling, water outlet meets the requirements, and has reduced the influence to environment.
Claims (7)
1. the treatment process of an oily(waste)water comprises the following step:
A, oily(waste)water fed salvage for the first time after staticly settling in the settling tank, remove the free state oil in the waste water;
B, will leave standstill, make after mechanical dispersion attitude oil is combined into free state oil in the waste water, salvage through the waste water of first salvaging;
C, repetition b step 3-7 time are removed mechanical dispersed oil;
D, the waste water that will remove mechanical dispersed oil are sent into treating pond, adopt activated sludge process to handle the acquisition water outlet.
2. the treatment process of oily(waste)water according to claim 1 is characterized in that, said salvaging is to adopt reticulattion to salvage.
3. the treatment process of oily(waste)water according to claim 1 is characterized in that, said salvaging is to adopt oil skimmer vessel in profit layering place free state oil to be removed.
4. the treatment process of oily(waste)water according to claim 1 is characterized in that, the number of times that repeats the b step is 5 times.
5. the treatment process of oily(waste)water according to claim 1 is characterized in that, said active sludge comprises farm manure.
6. the treatment process of oily(waste)water according to claim 5 is characterized in that, farm manure is put into treating pond before, earlier in farm manure, add glucose and methyl alcohol is cultivated, incubation time is 15-25 days.
7. the treatment process of oily(waste)water according to claim 6 is characterized in that, said farm manure, and the weight part ratio of glucose and methyl alcohol is: 50-75: 1-5: 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104154664A CN102491593A (en) | 2011-12-14 | 2011-12-14 | Oily waste water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104154664A CN102491593A (en) | 2011-12-14 | 2011-12-14 | Oily waste water treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN102491593A true CN102491593A (en) | 2012-06-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104154664A Pending CN102491593A (en) | 2011-12-14 | 2011-12-14 | Oily waste water treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509652A (en) * | 2013-10-23 | 2014-01-15 | 杨解定 | Device for extracting grease from kitchen waste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038076A (en) * | 1989-06-03 | 1989-12-20 | 中国人民解放军北京军区后勤部基建营房部环保绿化处 | Oil conte, sewage treatment device |
| EP0717056A2 (en) * | 1994-12-15 | 1996-06-19 | Hymo Corporation | An aqueous dispersion of an amphoteric water-soluble polymer, a method of manufacturing the same, and a treating agent comprising the same |
| CN201338974Y (en) * | 2008-06-11 | 2009-11-04 | 许建民 | Oily sewage treatment device |
| CN101870544A (en) * | 2010-07-16 | 2010-10-27 | 大庆市新中瑞环保有限公司 | Method for treating petroleum refining waste water |
| CN102050532A (en) * | 2009-11-02 | 2011-05-11 | 上海安洁士石油技术有限公司 | Integral treatment process of oily sewage of oil field |
-
2011
- 2011-12-14 CN CN2011104154664A patent/CN102491593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038076A (en) * | 1989-06-03 | 1989-12-20 | 中国人民解放军北京军区后勤部基建营房部环保绿化处 | Oil conte, sewage treatment device |
| EP0717056A2 (en) * | 1994-12-15 | 1996-06-19 | Hymo Corporation | An aqueous dispersion of an amphoteric water-soluble polymer, a method of manufacturing the same, and a treating agent comprising the same |
| CN201338974Y (en) * | 2008-06-11 | 2009-11-04 | 许建民 | Oily sewage treatment device |
| CN102050532A (en) * | 2009-11-02 | 2011-05-11 | 上海安洁士石油技术有限公司 | Integral treatment process of oily sewage of oil field |
| CN101870544A (en) * | 2010-07-16 | 2010-10-27 | 大庆市新中瑞环保有限公司 | Method for treating petroleum refining waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509652A (en) * | 2013-10-23 | 2014-01-15 | 杨解定 | Device for extracting grease from kitchen waste |
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Application publication date: 20120613 |