CN105923817A - Oil-containing wastewater treatment technology - Google Patents
Oil-containing wastewater treatment technology Download PDFInfo
- Publication number
- CN105923817A CN105923817A CN201610301504.6A CN201610301504A CN105923817A CN 105923817 A CN105923817 A CN 105923817A CN 201610301504 A CN201610301504 A CN 201610301504A CN 105923817 A CN105923817 A CN 105923817A
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- CN
- China
- Prior art keywords
- oil
- waste water
- water
- mud
- enters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides an oil-containing wastewater treatment technology. The oil-containing wastewater treatment technology is implemented through a water quality adjusting tank, an oil isolating box, an oil-water separator, a flocculation basin, a clarifying tank, a neutralizing tank, a membrane treatment unit and a drainage tank. According to the oil-containing wastewater treatment technology, after wastewater is subjected to oil removal and flocculation treatment, part of the wastewater enters the membrane treatment unit for deep treatment, the other part of the wastewater enters the drainage tank, part of purified water subjected to deep treatment is reused, the other part of the purified water subjected to deep treatment is mixed with water contained in the drainage tank, therefore, the effluent quality is guaranteed, and the operating cost is reduced; in addition, the proportion of the water entering the membrane treatment unit can be flexibly adjusted to be suitable for the different effluent quality, the application range is wide, the technology can be suitable for high-concentration oil-containing wastewater, wastewater with the low oil content also can be treated through the technology, and compared with the prior art, the separating efficiency can be improved; pollution and waste of water resources can be effectively reduced.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of process for treating oil-containing waste water.
Background technology
It is said that in general, the general employing oil interceptor that processes of oily waste water reaches the purpose of oil removing.Its principle is to utilize to contain
Oils and fats in oil waste water is different from the density of water and realizes oil and separates with water.Owing to natural separation needs the regular hour, and
And also have substantial connection with the particular state such as the flow velocity of processed sewage, temperature, add the oils and fats in oily waste water and suspend
Grain is mostly the most tiny, and the dispersed oil in water, oil emulsion, dissolved oil, solid attaching oil are difficult in limited stop
By Gravity Separation in time, to this amount of grease and particle, common oil interceptor can be described as helpless.At present
Seen correlation technique report is to carry out, for the waste water that oil content is big, the technique that processes mostly, such as, carry out oil field waste
The technique processed, for the waste water that oil content is few, the technique that such as power plant's oily waste water carries out processing has not yet seen.And it is right
Technique also many employing oil water separators that the waste water that oil content is bigger carries out processing the most directly discharge after carrying out oil-water separation, it is difficult to
Reach the standard of discharge of wastewater and reuse.Although carrying out advanced treating to improve effluent quality, but the operation of advanced treating becoming
Ben Taigao.
Summary of the invention
For solving the problems referred to above, the invention discloses a kind of process for treating oil-containing waste water.
In order to reach object above, the present invention provides following technical scheme:
A kind of process for treating oil-containing waste water, comprises the following steps:
1) oil removal case is entered with the most constant flow after oily waste water flows into water quality adjustment groove dash adjustment；
2) oily waste water stratification in oil removal case, Oil scraper scrapes off the oil slick on upper strata, and oil slick enters sump oil case through oil collecting pipe,
The waste water removing oil slick enters oil water separator；
3) water in waste water and oil are separated in oil water separator further, and after separation, waste water enters flocculation sedimentation tank
Pond, oil enters sump oil case；
4) adding lime cream in flocculation basin makes heavy metal ion form the hydroxide precipitation of indissoluble, adds flocculant and helps solidifying
Agent makes the solid suspension flocculation that reaction original in waste water produces；
5) oily waste water sends into defecator by elevator pump after flocculation treatment, and the mud in waste water sinks at self gravitation
Bottom clarification, the waste water outflow through clarification enters neutralization chamber, with pump, the mud bottom defecator is entered mud dashpot, so
Rear entrance sludge dewatering system；
6) after the waste water outflow through clarification enters neutralization chamber, adding appropriate acid, the pH value of regulation waste water is to 6～9, after neutralization
A waste water part deliver to letdown tank, another part delivers to film processing unit；
7) waste water uses ultrafiltration membrane treatment, a part of reuse of water purification at film processing unit, is partly into letdown tank；
8) in rhone, water quality is monitored, rear directly discharge up to standard, when water quality is the most up to standard, increases the clean of film processing unit
Water enters the flow of letdown tank or the water of letdown tank is back to flocculation basin.
As preferably, it is polymeric iron at flocculant described in step 4).
As preferably, it is PAM organic coagulant aid at flocculation aid described in step 4).
As preferably, the shape of defecator top cylinder described in step 5) is settling zone, and bottom is the mud of frusto-conical
District, inside is provided with guide shell, and waste water is downwardly into from guide shell, after reflecting plate baffling is met in bottom in settling zone the most upwards
Stream, eventually enters into upper end annular overflow channel and drains, and mud settles downwards final after guide shell enters due to action of gravity
Entering mud district, part is brought into the mud of settling zone by current, because water velocity is slow, also can gradually be settled down to mud district.
As preferably, it is being provided with agitating device at flocculation basin described in step 4), is making waste water and medicament be sufficiently mixed, instead
Should.
What the present invention obtained has the beneficial effect that
In the present invention, waste water is after oil removing and flocculation treatment, is partly into film processing unit and carries out advanced treating, another portion
Dividing and enter letdown tank, a part of reuse of water purification after advanced treating, a part mixes with the water in letdown tank, the most both protects
Demonstrate,prove effluent quality, reduced again operating cost, it is also possible to regulation flexibly has entered the ratio of the water of film processing unit, to adapt to
Different water quality, applied widely, may be not only suitable for highly concentrated oil-bearing wastewater, at waste water that also can be low to oil content
Reason, the most also can improve separation efficiency；Can effectively reduce the pollution to water resource and waste.
Accompanying drawing explanation
Fig. 1, the process chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is only
For the present invention being described rather than limiting the scope of the present invention.
Embodiment 1
A kind of process for treating oil-containing waste water, technological process is as it is shown in figure 1, comprise the following steps:
1) oil removal case is entered with the most constant flow after oily waste water flows into water quality adjustment groove dash adjustment；
2) oily waste water stratification in oil removal case, Oil scraper scrapes off the oil slick on upper strata, and oil slick enters sump oil case through oil collecting pipe,
The waste water removing oil slick enters oil water separator；
3) water in waste water and oil are separated in oil water separator further, and after separation, waste water enters flocculation sedimentation tank
Pond, oil enters sump oil case；
4) adding lime cream in flocculation basin makes heavy metal ion form the hydroxide precipitation of indissoluble, adds flocculant and helps solidifying
Agent makes the solid suspension flocculation that reaction original in waste water produces, and flocculant is polymeric iron, and flocculation basin is provided with agitating device, makes
Waste water and medicament are sufficiently mixed, react；
5) oily waste water sends into defecator by elevator pump after flocculation treatment, and defecator top cylinder shape is settling zone, under
Portion is the mud district of frusto-conical, and inside is provided with guide shell, and waste water is downwardly into from guide shell, meets reflecting plate baffling in bottom
After in settling zone slowly to upstream, eventually enter into upper end annular overflow channel and drain, mud from guide shell enter after due to weight
Power effect settles downwards and eventually enters into mud district, and part is brought into the mud of settling zone by current, because water velocity is slow, and also can be by
Gradually being settled down to mud district, the mud in waste water sinks to bottom clarification at self gravitation, in the waste water outflow of clarification enters
And groove, with pump, the mud bottom defecator is entered mud dashpot, subsequently into sludge dewatering system；
6) after the waste water outflow through clarification enters neutralization chamber, adding appropriate acid, the pH value of regulation waste water is to 6～9, after neutralization
A waste water part deliver to letdown tank, another part delivers to film processing unit；Flocculation aid is PAM organic coagulant aid；
7) waste water uses ultrafiltration membrane treatment, a part of reuse of water purification at film processing unit, is partly into letdown tank；
8) in rhone, water quality is monitored, rear directly discharge up to standard, when water quality is the most up to standard, increases the clean of film processing unit
Water enters the flow of letdown tank or the water of letdown tank is back to flocculation basin.
After testing, using the oil content in the water outlet after the process for treating oil-containing waste water process of present invention offer is 1.52
～2.78ppm；PH value is 7.25～8.22.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also includes
The technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (5)
1. a process for treating oil-containing waste water, it is characterised in that comprise the following steps:
1) oil removal case is entered with the most constant flow after oily waste water flows into water quality adjustment groove dash adjustment；
2) oily waste water stratification in oil removal case, Oil scraper scrapes off the oil slick on upper strata, and oil slick enters sump oil case through oil collecting pipe,
The waste water removing oil slick enters oil water separator；
3) water in waste water and oil are separated in oil water separator further, and after separation, waste water enters flocculation sedimentation tank
Pond, oil enters sump oil case；
4) adding lime cream in flocculation basin makes heavy metal ion form the hydroxide precipitation of indissoluble, adds flocculant and helps solidifying
Agent makes the solid suspension flocculation that reaction original in waste water produces；
5) oily waste water sends into defecator by elevator pump after flocculation treatment, and the mud in waste water sinks at self gravitation
Bottom clarification, the waste water outflow through clarification enters neutralization chamber, with pump, the mud bottom defecator is entered mud dashpot, so
Rear entrance sludge dewatering system；
6) after the waste water outflow through clarification enters neutralization chamber, adding appropriate acid, the pH value of regulation waste water is to 6～9, after neutralization
A waste water part deliver to letdown tank, another part delivers to film processing unit；
7) waste water uses ultrafiltration membrane treatment, a part of reuse of water purification at film processing unit, is partly into letdown tank；
8) in rhone, water quality is monitored, rear directly discharge up to standard, when water quality is the most up to standard, increases the clean of film processing unit
Water enters the flow of letdown tank or the water of letdown tank is back to flocculation basin.
2. process for treating oil-containing waste water as claimed in claim 1, it is characterised in that at flocculant described in step 4) for being polymerized
Ferrum.
3. process for treating oil-containing waste water as claimed in claim 1, it is characterised in that be PAM at flocculation aid described in step 4)
Organic coagulant aid.
4. desulfuration waste water treatment process as claimed in claim 1, it is characterised in that defecator top cylinder described in step 5)
Shape is settling zone, and bottom is the mud district of frusto-conical, and inside is provided with guide shell, and waste water is downwardly into from guide shell, the end of at
In settling zone slowly to upstream after portion's chance reflecting plate baffling, eventually entering into upper end annular overflow channel and drain, mud is from water conservancy diversion
Settling downwards due to action of gravity after cylinder entrance and eventually enter into mud district, part is brought into the mud of settling zone by current, because of current
Speed is slow, also can gradually be settled down to mud district.
5. desulfuration waste water treatment process as claimed in claim 1, it is characterised in that be provided with at flocculation basin described in step 4)
Agitating device, makes waste water and medicament be sufficiently mixed, react.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610301504.6A CN105923817A (en) | 2016-05-09 | 2016-05-09 | Oil-containing wastewater treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610301504.6A CN105923817A (en) | 2016-05-09 | 2016-05-09 | Oil-containing wastewater treatment technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105923817A true CN105923817A (en) | 2016-09-07 |
Family
ID=56835389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610301504.6A Pending CN105923817A (en) | 2016-05-09 | 2016-05-09 | Oil-containing wastewater treatment technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105923817A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336311A (en) * | 2018-11-08 | 2019-02-15 | 天津磊峰实业有限公司 | A kind of processing method for electrophoretic painting sewage |
| CN110104810A (en) * | 2019-04-24 | 2019-08-09 | 常州润成环境科技有限公司 | The processing method of oil-containing cleaning waste water |
| CN110902971A (en) * | 2019-12-11 | 2020-03-24 | 烨辉（中国）科技材料有限公司 | Oily wastewater treatment process |
| CN111320304A (en) * | 2020-03-17 | 2020-06-23 | 海口海关技术中心 | Petroleum waste liquid treatment equipment for laboratory |
| CN113816557A (en) * | 2021-10-25 | 2021-12-21 | 山东海吉雅环保设备有限公司 | Mud-removing, oil-collecting and water-purifying method for high-turbidity oily sewage |
| CN114735878A (en) * | 2022-05-13 | 2022-07-12 | 湖北森林源环保产业有限公司 | Kitchen waste treatment process |
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| US20050098504A1 (en) * | 2002-12-11 | 2005-05-12 | Davnor Water Treatment Technologies Ltd. | Oil and gas well fracturing (frac) water treatment process |
| US20090204419A1 (en) * | 2006-04-06 | 2009-08-13 | Produced Water Development, Llc | Purification of Oil Field Production Water for Beneficial Use |
| CN101875518A (en) * | 2010-07-01 | 2010-11-03 | 陈启松 | Treatment method of stainless steel pickling waste water |
| CN102583831A (en) * | 2012-03-09 | 2012-07-18 | 广西宇达水处理设备工程有限公司 | Wastewater treatment and reusing membrane separation treatment technology |
| CN102616958A (en) * | 2012-03-29 | 2012-08-01 | 安徽省天虹绿洲环保科技有限公司 | Treatment technology of low concentration electroplating wastewater |
| CN103693770A (en) * | 2012-09-28 | 2014-04-02 | 宝钢工程技术集团有限公司 | Purifying device for wet-process flue gas desulfurization wastewater and using method thereof |
| CN103739107A (en) * | 2013-11-14 | 2014-04-23 | 安徽省绿巨人环境技术有限公司 | Treatment process for wastewater of household appliance product degreasing process |
| KR101581315B1 (en) * | 2015-06-11 | 2015-12-30 | 이경섭 | Physical and chemical waste water treatment apparatus |
-
2016
- 2016-05-09 CN CN201610301504.6A patent/CN105923817A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050098504A1 (en) * | 2002-12-11 | 2005-05-12 | Davnor Water Treatment Technologies Ltd. | Oil and gas well fracturing (frac) water treatment process |
| US20090204419A1 (en) * | 2006-04-06 | 2009-08-13 | Produced Water Development, Llc | Purification of Oil Field Production Water for Beneficial Use |
| CN101875518A (en) * | 2010-07-01 | 2010-11-03 | 陈启松 | Treatment method of stainless steel pickling waste water |
| CN102583831A (en) * | 2012-03-09 | 2012-07-18 | 广西宇达水处理设备工程有限公司 | Wastewater treatment and reusing membrane separation treatment technology |
| CN102616958A (en) * | 2012-03-29 | 2012-08-01 | 安徽省天虹绿洲环保科技有限公司 | Treatment technology of low concentration electroplating wastewater |
| CN103693770A (en) * | 2012-09-28 | 2014-04-02 | 宝钢工程技术集团有限公司 | Purifying device for wet-process flue gas desulfurization wastewater and using method thereof |
| CN103739107A (en) * | 2013-11-14 | 2014-04-23 | 安徽省绿巨人环境技术有限公司 | Treatment process for wastewater of household appliance product degreasing process |
| KR101581315B1 (en) * | 2015-06-11 | 2015-12-30 | 이경섭 | Physical and chemical waste water treatment apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336311A (en) * | 2018-11-08 | 2019-02-15 | 天津磊峰实业有限公司 | A kind of processing method for electrophoretic painting sewage |
| CN110104810A (en) * | 2019-04-24 | 2019-08-09 | 常州润成环境科技有限公司 | The processing method of oil-containing cleaning waste water |
| CN110902971A (en) * | 2019-12-11 | 2020-03-24 | 烨辉（中国）科技材料有限公司 | Oily wastewater treatment process |
| CN111320304A (en) * | 2020-03-17 | 2020-06-23 | 海口海关技术中心 | Petroleum waste liquid treatment equipment for laboratory |
| CN113816557A (en) * | 2021-10-25 | 2021-12-21 | 山东海吉雅环保设备有限公司 | Mud-removing, oil-collecting and water-purifying method for high-turbidity oily sewage |
| CN114735878A (en) * | 2022-05-13 | 2022-07-12 | 湖北森林源环保产业有限公司 | Kitchen waste treatment process |
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| PB01 | Publication | ||
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Application publication date: 20160907 |