CN108529815A - A kind of oily waste water multi-filtering extraction process technique - Google Patents
A kind of oily waste water multi-filtering extraction process technique Download PDFInfo
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- CN108529815A CN108529815A CN201810279979.9A CN201810279979A CN108529815A CN 108529815 A CN108529815 A CN 108529815A CN 201810279979 A CN201810279979 A CN 201810279979A CN 108529815 A CN108529815 A CN 108529815A
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- waste water
- extraction process
- oily waste
- oily
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- 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
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- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- 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
- C02F1/52—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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- 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)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of oily waste water multi-filtering extraction process technique, the technique includes the following steps：（1）The oily waste water of generation is realized into water-oil separating by integral type degreasing unit, recycles the oil slick separated；（2）Waste water after separation is precipitated by primary sedimentation tank, then enters air-floating apparatus, the solid or liquid particles of hydrophobic group in adherency and removal waste water；（3）Air supporting water outlet enters hydrolysis acidification pool after entering intermediate pool homogeneous, and acidification is hydrolyzed in waste water, larger molecular organics of degrading；（4）Water outlet enters biochemistry pool, and biochemical reaction, degradation of organic substances are carried out by bio-contact oxidation layer；（5）Bio-chemical effluent enters advanced oxidation equipment, efficient fast degradation biochemical system organic matter difficult to degrade after pump is promoted；（6）After coagulative precipitation tank is handled, water outlet enters discharge pond, qualified discharge.The present invention has many advantages, such as that simple structure process, cost of investment saving, high degree of automation, processing capacity are strong.
Description
Technical field
The present invention relates to technical field of waste water processing, specially a kind of oily waste water multi-filtering extraction process technique.
Background technology
Oily waste water is mainly derived from the Ministry of Industry such as oil, petrochemical industry, steel, coking, gas generating station, mechanical processing
Door.The useless oil percentage in water of different department's discharges is widely different, up to 2000-3000mg/L.Oils contained in waste water
Substance, including natural oil, oil product, tar and its fraction and edible animals and plants oil ＆ fat class.From to water body
For pollution, mainly oil and tar.Oily waste water is big with water, water quality is complicated, it is difficult to which the characteristics such as biodegradation enter
Natural environment causes very serious pollution to plant, soil, water body etc., is widely considered a kind of intractable Industry Waste
Water.Consider from environmental angle, the processing of oily waste water should consider to recycle oily substance first, and make full use of treated water
Resource.
National " 13 " planning clearly proposes the target of energy-saving and emission-reduction, it is desirable that the highly water intensive row such as petrochemical industry, steel
Industry realizes wastewater zero discharge.And a large amount of oily waste waters that these industries generate, the emulsifiable oil waste water and machine processed such as machine cut
The cleaning waste water of part processing, oil content is high, complicated component, it is difficult to the characteristics such as biodegradation, into natural environment to plant, soil
Earth, water body etc. cause very serious pollution, along in recent years, country is just requiring key industry to test wastewater zero discharge successively,
Since conventional materialization and biochemical technology are more to be directed to organic pollutants and inorganic pollutants, oily waste water row up to standard can not be made
It puts.Therefore the highly water intensive industry such as petrochemical industry, steel will realize that wastewater zero discharge critical issue is the process problem of oily waste water.
Oily waste water is discharged into water body and causes serious influence, water-surface oil film thickness will completely cut off when being more than 1 μm air with
Gas exchanges between water body, cause Dissolved Oxygen in Water to decline, and generate stench, cause water quality deterioration, organism in water dead because of anoxic
It dies.These oiliness sewage treatment problems are always a big problem of relevant industries, become and restrict industry upgrading development and continue
The main bottleneck of growth.Therefore, how oily waste water is handled, it has also become need the emphasis studied at present.
Invention content
In order to overcome the above problem, the present invention to provide a kind of oily waste water multi-filtering extraction process technique.
The technical solution of the present invention is to provide a kind of oily waste water multi-filtering extraction process techniques, it is characterised in that：Institute
Technique is stated to include the following steps：
（1）By the oily waste water of generation by oily release agent and calcium hydroxide synergy, realized by integral type degreasing unit
Water-oil separating, and recycle the oil slick separated；
（2）Waste water after separation is precipitated by primary sedimentation tank, then enters air-floating apparatus, and hydrophobic group consolidates in adherency and removal waste water
Body or liquid particles；
（3）Air supporting water outlet enters hydrolysis acidification pool after entering intermediate pool homogeneous, and acidification is hydrolyzed in waste water, macromolecular of degrading
Organic matter；
（4）Water outlet is meeting dissolved oxygen concentration into biochemistry pool by bio-contact oxidation layer（DO）Condition more than 2mg/L
Lower carry out biochemical reaction, degradation of organic substances；
（5）Bio-chemical effluent through pump promoted after enter advanced oxidation equipment, pH ranges 3 ~ 4 and meet waste water, catalysis be situated between
When matter, the proportionate relationship of oxide isolation, efficient fast degradation biochemical system organic matter difficult to degrade；
（6）After coagulative precipitation tank is handled, water outlet enters discharge pond, qualified discharge.
Further, the step（1）In, the integral type degreasing unit includes alkaline oily waste water regulating reservoir and height
Effect degreasing unit handles waste water.
Further, the step（3）In, when acidification is hydrolyzed in waste water, in pH, oxidation-reduction potential（ORP）Meet
For pH values between 8 ~ 9.5, dissolved oxygen content is 0.2 ~ 0.4mg/L, oxidation-reduction potential（ORP）In -60mv ~+30mv.
Further, the step（4）In, the bio-contact oxidation layer is by modified porous granular filler and bioactivity
Filler forms.
Further, the step（5）In, the waste water, catalytic media, oxide isolation proportion be 1 ton, 12 liters,
5 liters.
Further, the step（5）In, the catalytic media a concentration of 20%, the oxide isolation a concentration of 5%.
Further, the step（6）In, water outlet COD indexs are less than 40mg/L, and oil content is less than 2mg/L.
The beneficial effects of the invention are as follows：A kind of oily waste water multi-filtering extraction process technique of the present invention is in oily waste water
Oily isolation technics, hydrolysis acidification technology, bio-contact oxidation and advanced oxidation processes are introduced in processing, recycling generates valuable
Each limit value of discharge of wastewater is made to be better than discharging standards while oil slick resource.System integrated artistic is simple, securely and reliably, section
Can efficiently, investment reduction cost, resource utilization part oil slick, improves oily waste water while waste water high-efficiency processing up to standard
Treatment technology it is horizontal.The system process reaction time is short, and equipment intensive degree is high, high degree of automation, anti-variation water quality energy
Power is strong, and the part oil slick curing degree of recycling is high, is readily delivered.The present invention can fast implement grease layering, it is innovative
Hydrolysis acidification technology, bio-contact oxidation and advanced oxidation processes are introduced in oiliness sewage treatment, can to give up by processing
Water discharges each limit value and is better than discharging standards；Its simple, cost of investment saving, high degree of automation, place with structure process
The advantages that reason ability is strong.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1：
As shown in Figure 1, a kind of oily waste water multi-filtering extraction process technique of the present invention, the technique include the following steps：
（1）By the oily waste water of generation by oily release agent and calcium hydroxide synergy, realized by integral type degreasing unit
Water-oil separating, and recycle the oil slick separated；Integral type degreasing unit includes alkaline oily waste water regulating reservoir and efficiently removes
Oily device handles waste water.
（2）Waste water after separation is precipitated by primary sedimentation tank, then enters air-floating apparatus, hydrophobic group in adherency and removal waste water
Solid or liquid particles；
（3）Air supporting water outlet enters hydrolysis acidification pool after entering intermediate pool homogeneous, in pH, oxidation-reduction potential（ORP）Meet
PH values are 8.5, dissolved oxygen content 0.2mg/L, oxidation-reduction potential（ORP）Acid is hydrolyzed to waste water in -30mv
Change, larger molecular organics of degrading；
（4）Water outlet enters biochemistry pool, passes through the bio-contact oxidation being made of modified porous granular filler and biological active filling material
Layer, is meeting dissolved oxygen concentration（DO）More than carrying out biochemical reaction, degradation of organic substances under conditions of 2mg/L；
（5）Bio-chemical effluent through pump promoted after enter advanced oxidation equipment, pH ranges 3 and meet waste water, catalytic media,
When the proportion of oxide isolation is 1 ton, 12 liters, 5 liters, wherein catalytic media a concentration of 20%, the oxide isolation is a concentration of
5%, efficient fast degradation biochemical system organic matter difficult to degrade；
（6）After coagulative precipitation tank is handled, water outlet COD indexs be less than 40mg/L, oil content be less than 2mg/L, be discharged into
Enter and discharges pond, qualified discharge.
Embodiment 2：
As shown in Figure 1, a kind of oily waste water multi-filtering extraction process technique of the present invention, the technique include the following steps：
（1）By the oily waste water of generation by oily release agent and calcium hydroxide synergy, realized by integral type degreasing unit
Water-oil separating, and recycle the oil slick separated；Integral type degreasing unit includes alkaline oily waste water regulating reservoir and efficiently removes
Oily device handles waste water.
（2）Waste water after separation is precipitated by primary sedimentation tank, then enters air-floating apparatus, hydrophobic group in adherency and removal waste water
Solid or liquid particles；
（3）Air supporting water outlet enters hydrolysis acidification pool after entering intermediate pool homogeneous, in pH, oxidation-reduction potential（ORP）Meet
PH values are 9.5, dissolved oxygen content 0.4mg/L, oxidation-reduction potential（ORP）Acidification is hydrolyzed to waste water in+30mv,
Degradation larger molecular organics；
（4）Water outlet enters biochemistry pool, passes through the bio-contact oxidation being made of modified porous granular filler and biological active filling material
Layer, is meeting dissolved oxygen concentration（DO）More than carrying out biochemical reaction, degradation of organic substances under conditions of 2mg/L；
（5）Bio-chemical effluent through pump promoted after enter advanced oxidation equipment, pH ranges 4 and meet waste water, catalytic media,
When the proportion of oxide isolation is 1 ton, 12 liters, 5 liters, wherein catalytic media a concentration of 20%, the oxide isolation is a concentration of
5%, efficient fast degradation biochemical system organic matter difficult to degrade；
（6）After coagulative precipitation tank is handled, water outlet COD indexs be less than 40mg/L, oil content be less than 2mg/L, be discharged into
Enter and discharges pond, qualified discharge.
A kind of oily waste water multi-filtering extraction process technique of the present invention introduces oily separation in oiliness sewage treatment
Technology, hydrolysis acidification technology, bio-contact oxidation and advanced oxidation processes, recycling make while generating valuable oil slick resource
Each limit value of discharge of wastewater is better than discharging standards.System integrated artistic is simple, securely and reliably, energy-efficient, investment reduction at
This, resource utilization part oil slick while waste water high-efficiency processing up to standard improves the treatment technology level of oily waste water.
The above example only one such embodiment of the present invention, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of oily waste water multi-filtering extraction process technique, it is characterised in that：The technique includes the following steps：
（1）By the oily waste water of generation by oily release agent and calcium hydroxide synergy, realized by integral type degreasing unit
Water-oil separating, and recycle the oil slick separated；
（2）Waste water after separation is precipitated by primary sedimentation tank, then enters air-floating apparatus, and hydrophobic group consolidates in adherency and removal waste water
Body or liquid particles；
（3）Air supporting water outlet enters hydrolysis acidification pool after entering intermediate pool homogeneous, and acidification is hydrolyzed in waste water, macromolecular of degrading
Organic matter；
（4）Water outlet is meeting dissolved oxygen concentration into biochemistry pool by bio-contact oxidation layer（DO）Condition more than 2mg/L
Lower carry out biochemical reaction, degradation of organic substances；
（5）Bio-chemical effluent through pump promoted after enter advanced oxidation equipment, pH ranges 3 ~ 4 and meet waste water, catalysis be situated between
When matter, the proportionate relationship of oxide isolation, efficient fast degradation biochemical system organic matter difficult to degrade；
（6）After coagulative precipitation tank is handled, water outlet enters discharge pond, qualified discharge.
2. a kind of oily waste water multi-filtering extraction process technique according to claim 1, it is characterised in that：The step
（1）In, the integral type degreasing unit includes that alkaline oily waste water regulating reservoir and efficient oil removing apparatus handle waste water.
3. a kind of oily waste water multi-filtering extraction process technique according to claim 1, it is characterised in that：The step
（3）In, when acidification is hydrolyzed in waste water, in pH, oxidation-reduction potential（ORP）Meet pH values between 8 ~ 9.5, dissolves
Oxygen content is 0.2 ~ 0.4mg/L, oxidation-reduction potential（ORP）In -60mv ~+30mv.
4. a kind of oily waste water multi-filtering extraction process technique according to claim 1, it is characterised in that：The step
（4）In, the bio-contact oxidation layer is made of modified porous granular filler and biological active filling material.
5. a kind of oily waste water multi-filtering extraction process technique according to claim 1, it is characterised in that：The step
（5）In, the waste water, catalytic media, oxide isolation proportion be 1 ton, 12 liters, 5 liters.
6. a kind of oily waste water multi-filtering extraction process technique according to claim 5, it is characterised in that：The step
（5）In, the catalytic media a concentration of 20%, the oxide isolation a concentration of 5%.
7. a kind of oily waste water multi-filtering extraction process technique according to claim 1, it is characterised in that：The step
（6）In, water outlet COD indexs are less than 40mg/L, and oil content is less than 2mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279979.9A CN108529815A (en) | 2018-04-01 | 2018-04-01 | A kind of oily waste water multi-filtering extraction process technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810279979.9A CN108529815A (en) | 2018-04-01 | 2018-04-01 | A kind of oily waste water multi-filtering extraction process technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650648A (en) * | 2018-12-16 | 2019-04-19 | 邯郸钢铁集团有限责任公司 | A kind of processing system and method for cold rolling wastewater |
| CN114149139A (en) * | 2021-11-23 | 2022-03-08 | 马鞍山东都节能技术有限公司 | Carbon-peak-reaching ecological treatment device and method for sewage and wastewater of refuse transfer station |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226580A (en) * | 2016-08-31 | 2017-10-03 | 无锡市新都环保科技有限公司 | A kind of system and processing method of efficient process oily waste water |
-
2018
- 2018-04-01 CN CN201810279979.9A patent/CN108529815A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226580A (en) * | 2016-08-31 | 2017-10-03 | 无锡市新都环保科技有限公司 | A kind of system and processing method of efficient process oily waste water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650648A (en) * | 2018-12-16 | 2019-04-19 | 邯郸钢铁集团有限责任公司 | A kind of processing system and method for cold rolling wastewater |
| CN114149139A (en) * | 2021-11-23 | 2022-03-08 | 马鞍山东都节能技术有限公司 | Carbon-peak-reaching ecological treatment device and method for sewage and wastewater of refuse transfer station |
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Application publication date: 20180914 |
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