CN106587495A - Treating method for industrial sewage - Google Patents
Treating method for industrial sewage Download PDFInfo
- Publication number
- CN106587495A CN106587495A CN201611112920.8A CN201611112920A CN106587495A CN 106587495 A CN106587495 A CN 106587495A CN 201611112920 A CN201611112920 A CN 201611112920A CN 106587495 A CN106587495 A CN 106587495A
- Authority
- CN
- China
- Prior art keywords
- sewage
- water
- electric flocculation
- activated sludge
- medicament
- 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
Links
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
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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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- 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
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 relates to a treating method for industrial sewage. The method mainly comprises the following steps that 1, sewage to be treated is subjected to electrolytic treatment through an electric flocculation device, and impurities and water are removed through flotation pollution discharge and sedimentation pollution discharge; 2, a treating agent is put into the sewage obtained after being treated through the electric flocculation device through a dosing device, and sufficient mixing is performed in a mixing device; 3, a medicament is put and the mixed sewage enters an efficient activated sludge purifier for performing a reaction to form activated sludge, and filtering treatment is performed. The electrooxidation-flocculation and efficient activated sludge water purification technology is adopted for treating oil field wastewater, the dosage of a water treatment chemical medicament is decreased, and formation water quality eutrophication is avoided.
Description
Technical field
The present invention relates to a kind of sewage treatment process, specifically refers to a kind of processing method of trade effluent.
Background technology
What current disposing polluted water in oil was commonly used has two methods：A kind of is to take traditional gravity floatation+coagulant precipitation+pressure
The handling process of power filtration+corrosion-mitigation scale-inhibition adding of agent, the technique is preliminary to remove ratio by gravity natural subsidence and aeration flotation
The larger suspension of weight and free oil, then add coagulated agent, make suspension combine to form larger floccule body increase suspension
With the difference in specific gravity of water, acceleration suspended particulate purpose detached with sewage is reached, finally by multistage filtering technology, further reduced
Suspension and oil content in water outlet.And for the corrosion and scaling and problem of bacteria of injection water, then by adding a certain amount of inhibition
Agent, scale preventative and bactericide are solving.
The content of the invention
The technical problem to be solved is to provide a kind of processing method of trade effluent, and it adopts electroxidation-wadding
The technique of solidifying+high-efficiency activated sludge water purification is processed oil field waste, not only reduces the dosage of chemistry in water treatment medicament,
And avoid stratum water Water Eutrophication.
The present invention solves the technical scheme that adopted of above-mentioned technical problem：A kind of processing method of trade effluent, it is special
Levy and be, mainly include the following steps that：
A pending sewage is carried out electrolysis process by () by electric flocculation device, and will be miscellaneous by flotation blowdown and precipitation blowdown
Matter is separated from water, removes；
B the sewage after the process of () electric flocculation device adds treatment agent and is fully mixed in mixing arrangement by chemicals dosing plant
Close；
C () adds medicament and mixed sewage carries out reaction and forms activated sludge into high-efficiency activated sludge water purifier, enters one
Step filtration treatment.
Sewage is carried out into electrolysis process in electric flocculation device in described step (a) to further include：
(a.1) described electric flocculation device is provided with electrolytic cell, equidistant parallel arrangement iron and graphite electricity in the electrolytic cell
Pole plate, by the electrolytic cell of sewage transport to electric flocculation device from storage tank, Jing electrolytic cells carry out electrolysis oxygen to the boosted pump of sewage
Change, electroreduction, electrofloatation and electrolytic flocculation are processed；
(a.2) floating thing and sediment of gained after electrolysis process are emitted into respectively by flotation blowdown, precipitation drainage
Waste oil collecting groove and sludge concentration tank.
Sewage dosing mixed processing after the process of electric flocculation device is further included in described step (b)：
(b.1) sewage after step (a.1) process is delivered in chemical-dosing mixer from intermediate water tank using middle water pump；
(b.2) medicament for preparing is added in sewage using dosing pump, and medicament and sewage is sufficiently mixed in a mixer,
Treatment agent is added to include dosing pump is respectively adopted from medicament preparing tank by PH conditioning agents, water purification agent and its flocculant in sewage
In adding blender；Described PH conditioning agents are formulated by calcium hydroxide and NaOH by 9: 1 mass ratio, and sewage PH value is adjusted
To 7.0-7.5；Described water purification agent adopts bentonite composite water purifying agent, dosage 30-50mg/L；Described flocculant is using cloudy
The high polymer polyacrylamide of ionic and molecular weight more than 10,000,000, dosage is 5mg/L.
Filtration treatment is carried out in the step (c) by high-efficiency activated sludge water purifier to further include：
(c.1) sewage transport Jing after processing in step (b.2) is filtered to efficient activated sludge water purifier；
(c.2) by the mud discharging of sedimentation and filtration section retention to sludge concentration tank；
(c.3) water qualified after process is noted by reinjected water blowback.
In order to discharge sludge can circular treatment, sludge is emitted into the Jing steps (a.2) and step (c.2) dense
Sludge in contracting pond is returned to supernatant in sewage storage tank with clarified water pump after sedimentation, and is repeated in step (a), step
Suddenly (b) and step (c).
To the sludge that is emitted in sludge concentration tank after sedimentation, using sludge pump base sludge is extracted out and done
Change is processed.
To sum up, the invention has the beneficial effects as follows：Oil field is processed using electroxidation-flocculation+high-efficiency activated sludge water purification technology
Sewage, realize purifying water by the method for physics, control corrosion rate, the effect that suppresses fouling, kill bacterium, reduce water process
Learn the dosage of medicament, it is to avoid the problems such as stratum water Water Eutrophication, the resistance to the action of a drug of bacterium, improve injection water with stratum water
Compatibility, reduces water process operating cost；Simultaneously remove the harmful ions such as removing ferro in water, sulphur, it is to avoid water quality in the injecting process
Change, realizes stablizing for water quality.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
The present invention is processed oil field waste using the technique of electroxidation-flocculation+high-efficiency activated sludge water purification.The present invention
Technological process it is as follows：Wastewater storage tank water pump boosted first is promoted in the built-in electrolytic cell of electric flocculation equipment, in electrolytic cell
Equidistant parallel arranges iron and graphite electrode plate, and unlike material battery lead plate ratio is true according to parameters such as water quality sulphur and bacterial contents
It is fixed, sewage Jing electrolytic cell Inner electrolysis, while electrolytic oxidation, electroreduction effect, electrofloatation effect, electrolysis wadding can be produced
Solidifying effect.Thus, the such as H+ of the cation in sewage obtains electronics and is reduced into hydrogen in electrolytic cell inner cathode annex.In remaining water
Rise other metal ions K+, Na+ due in water have its activity, still with ionic state presence.And there is electrolysis in sewage
The anion of betatopic activity such as Cl-, OH- lose electronics near electrolytic cell inner anode and are oxidized to Cl2, O2, the Cl2 of generation
Pole be dissolved in water formed ClO-, substantial amounts of ClO- sewage is had strength sterilizing effect, with this to reduce eliminating water in
Bacterium.The a large amount of H2 generated in anode and cathode and O2, its bubble is little, and decentralization is high, adheres to the light oil in water as carrier and hangs
Float and float, outside Jing overflow launders arrange, reach the effect of oil removing.Simultaneously because soluble metal electrolysis is produced in electrolytic process
OH- effects in a large amount of cations of life, with water, form metal hydroxides colloid flocculant and adsorb the polluter in waste water
Precipitation or formation larger particles provide advantage for subsequent treatment.
Waste water Jing after electroxidation-flocculation treatment is adjusted PH to 7.0-7.5, the PH through adding PH conditioning agents
Conditioning agent presses 9: 1 proportions using calcium hydroxide and NaOH, and dosage is according to sewage PH dynamic regulations, the Fe2+ ions in water
Generation FeS being combined with the S2- in water to precipitate, then being added a small amount of water purification agent and flocculation aid, the water purification agent is adopted swelling
Native composite water purifying agent, dosage 30-50mg/L, measuring pump is quantitatively added, and the flocculation aid adopts high polymer polyacrylamide, cloudy
Ionic, molecular weight more than 10,000,000, dosage 5mg/L, measuring pump is quantitatively added, and makes waste water enter high-efficiency activated sludge water purification
Flco rapid subsidence forms high-efficiency activated sludge filtering layer after device, and this filtering layer is special by surface physicses absorption, the net effect of catching and electrochemistry
Property and Van der Waals force effect, suspension colloid particle, flco, part microorganism etc. impurity is all intercepted here and is efficiently lived
On property sludge filtering layer, effluent quality is set to reach processing requirement.
The above, is only presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention, it is every according to
Any simple modification, the equivalent variations made to above example in technical spirit according to the present invention, each fall within the guarantor of the present invention
Within the scope of shield.
Claims (3)
1. a kind of processing method of trade effluent, it is characterised in that mainly include the following steps that：A () leads in pending sewage
Crossing electric flocculation device carries out electrolysis process, and is separated from water impurity, is removed by flotation blowdown and precipitation blowdown；(b) electricity wadding
Sewage after solidifying device is processed adds treatment agent and is sufficiently mixed in mixing arrangement by chemicals dosing plant；C () adds
Medicament and mixed sewage carries out reaction and forms activated sludge, further filtration treatment into high-efficiency activated sludge water purifier.
2. the processing method of a kind of trade effluent according to claim 1, it is characterised in that will in described step (a)
Sewage carries out electrolysis process in electric flocculation device and further includes：(a.1) described electric flocculation device is provided with electrolytic cell,
By in the electrolytic cell of sewage transport to electric flocculation device from storage tank, Jing electrolytic cells carry out electrolytic oxidation, electricity to the boosted pump of sewage
Solution reduction, electrofloatation and electrolytic flocculation are processed；(a.2) floating thing and sediment of gained after electrolysis process are arranged by flotation
Dirty, precipitation drainage is emitted into respectively waste oil collecting groove and sludge concentration tank.
3. the processing method of a kind of trade effluent according to claim 2, it is characterised in that right in described step (b)
Sewage dosing mixed processing is further included after the process of electric flocculation device：(b.1) using middle water pump by after step (a.1) process
Sewage be delivered in chemical-dosing mixer from intermediate water tank；(b.2) medicament for preparing is added in sewage using dosing pump, and
Medicament and sewage is set to be sufficiently mixed in a mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112920.8A CN106587495A (en) | 2016-12-07 | 2016-12-07 | Treating method for industrial sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112920.8A CN106587495A (en) | 2016-12-07 | 2016-12-07 | Treating method for industrial sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106587495A true CN106587495A (en) | 2017-04-26 |
Family
ID=58597191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611112920.8A Pending CN106587495A (en) | 2016-12-07 | 2016-12-07 | Treating method for industrial sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106587495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188998A (en) * | 2018-10-25 | 2019-01-11 | 成都市自来水有限责任公司 | Water treatment plant PAC Intelligent adding control system based on data fitting method |
-
2016
- 2016-12-07 CN CN201611112920.8A patent/CN106587495A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188998A (en) * | 2018-10-25 | 2019-01-11 | 成都市自来水有限责任公司 | Water treatment plant PAC Intelligent adding control system based on data fitting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170426 |
|
| WD01 | Invention patent application deemed withdrawn after publication |