CN105692813A - Electrocoagulation and electrocatalytic oxidation coupling device and use method thereof - Google Patents
Electrocoagulation and electrocatalytic oxidation coupling device and use method thereof Download PDFInfo
- Publication number
- CN105692813A CN105692813A CN201610027184.XA CN201610027184A CN105692813A CN 105692813 A CN105692813 A CN 105692813A CN 201610027184 A CN201610027184 A CN 201610027184A CN 105692813 A CN105692813 A CN 105692813A
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- China
- Prior art keywords
- electrocatalytic oxidation
- district
- coagulation
- electricity
- waste water
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Classifications
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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
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- 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
Abstract
The invention discloses an electrocoagulation and electrocatalytic oxidation coupling device which comprises an electrocoagulation area and an electrocatalytic oxidation area installed at the output end of the electrocoagulation area. The inner sides of the electrocoagulation area and the electrocatalytic oxidation area are each provided with a positive plate made from Fe and a negative plate made from graphene. A micropore aeration device is arranged on the electrocatalytic oxidation area. A use method of the electrocoagulation and electrocatalytic oxidation coupling device includes the following steps of firstly, conducting adjustment and electrocoagulation in the electrocoagulation area; secondly, conducting adjustment and electrocatalytic oxidation in the electrocatalytic oxidation area. The device and the use method have the advantages of being easy to operate, wide in reaction condition, easy to control, small in occupied area and good in treatment effect; due to the small capital expenditure, the treatment cost is greatly reduced.
Description
Technical field
The present invention relates to a kind of wastewater treatment equipment and processing method, be specifically related to a kind of electricity coagulation and electrocatalytic oxidation coupling device and using method thereof, belong to technical field of waste water processing。
Background technology
In recent years, along with oil is increasingly widely applied, the demand of oil is increasing, thus the exploitation of oil is being substantially increased by the mankind, incident is substantial amounts of oil field extracted water, contains the pollutant of a large amount of difficult degradations in oil field extracted water, water quality will be caused extremely serious pollution if being directly discharged in natural water, the method of re-injection oil reservoir after the employing process of current many oil fields, but owing to the permeability of ultra-low permeability oil layer is too low, current process technique is difficult to meet its requirement；And, if oil field extracted water places the complicated reactions such as reduction reaction will occur through long-term, the color of waste water even can turn green, increases difficulty to the process of follow-up waste water。
Summary of the invention
(1) to solve the technical problem that
For solving the problems referred to above, the present invention proposes a kind of electricity coagulation and electrocatalytic oxidation coupling device and using method thereof, has simple to operate, and reaction condition is wide in range to be easily controlled, floor space is little, and not only high treating effect, processing cost is substantially reduced。
(2) technical scheme
The electric coagulation of the present invention and electrocatalytic oxidation coupling device, including electricity coagulation district, and the electrocatalytic oxidation district installed with electricity coagulation district outfan；It is provided with the Fe positive plate made and minus plate that graphite is made inside described electricity coagulation district and electrocatalytic oxidation district；Described electrocatalytic oxidation district arranges microporous aeration device。
Further, the specification of described positive plate and minus plate is 170*30*2mm。
Further, described electricity coagulation district is 1: 1 with electrocatalytic oxidation district volume ratio。
Above-mentioned electricity coagulation and electrocatalytic oxidation coupling device, its using method comprises the steps:
The first step, electricity coagulation district regulates and electricity coagulation, and regulating positive plate and minus plate spacing inside electricity coagulation district is 3cm, and electric current density is 11mA/cm2；And waste water is imported to electricity coagulation district；Regulating waste water initial pH is 6；After the electricity coagulation XX time, it is conducted into electrocatalytic oxidation district；
Second step, electrocatalytic oxidation district regulates and electrocatalytic oxidation, adds 250g catalyst Mn-Ti-La/SiO in electrocatalytic oxidation district2, regulating additional tank voltage is 15V, imports the waste water after electricity coagulation district processes, the original ph of waste water is adjusted to 4, for appropriate air；Monitoring waste water index, until water outlet is discharged after reaching discharge index。
(3) beneficial effect
Compared with prior art, the present invention proposes a kind of electricity coagulation and electrocatalytic oxidation coupling device to the present invention and using method has the advantage that
1, utilize electrochemical process by contaminants removal, solve tradition oil field produced water treatment technology utilization gravity and add medicament；Not only avoid the secondary pollution that conventional technique is brought, also obtain removal effect more preferably。
2, the hydroxo complex that the metal ion that anodic dissolution produces occurs hydrolytic polymerization to be formed in the solution is utilized, suspended material in waste water is condensed, precipitate, remove, thus suspended material in waste water is had good removal effect, make up By Electrocatalytic Oxidation deficiency on float processes, simple to operate, reaction condition is wide in range to be easily controlled, floor space is little, the advantage of high treating effect；Owing to capital cost is few, processing cost is greatly reduced。
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention。
Detailed description of the invention
Electric coagulation as shown in Figure 1 and electrocatalytic oxidation coupling device；Including electricity coagulation district 1, and the electrocatalytic oxidation district 2 installed with electricity coagulation district outfan；It is provided with the Fe positive plate 3 made and minus plate 4 that graphite is made inside described electricity coagulation district 1 and electrocatalytic oxidation district 2；Described electrocatalytic oxidation district arranges microporous aeration device 5。
In another embodiment, the specification of described positive plate 3 and minus plate 4 is 170*30*2mm。
In another embodiment, described electricity coagulation district 1 and electrocatalytic oxidation district 2 volume ratio are 1: 1。
Above-mentioned electricity coagulation and electrocatalytic oxidation coupling device, its using method comprises the steps:
The first step, electricity coagulation district regulates and electricity coagulation, and regulating positive plate and minus plate spacing inside electricity coagulation district is 3cm, and electric current density is 11mA/cm2；And waste water is imported to electricity coagulation district；Regulating waste water initial pH is 6；After the electricity coagulation XX time, it is conducted into electrocatalytic oxidation district；Electrolytic coagulation processes oil field extracted water, using aluminium sheet or iron plate as anode, graphite etc. are as negative electrode, pass into DC source, anode generation corrosion, and corrosion produces these flocks ions and the colloidal state in waste water can be made to condense with the polluter of suspended state through a series of hydrolysis, polymerization process, precipitate near and separate；Meanwhile, in waste water, other polluters multiple can also be removed due to the reduction of the Oxidation of anode with negative electrode；There is technique adjustment simple, easy, low cost, the high feature removed, oil field extracted water is had effective removal effect。
Second step, electrocatalytic oxidation district regulates and electrocatalytic oxidation, adds 250g catalyst Mn-Ti-La/SiO in electrocatalytic oxidation district2, regulating additional tank voltage is 15V, imports the waste water after electricity coagulation district processes, the original ph of waste water is adjusted to 4, for appropriate air；Monitoring waste water index, until water outlet is discharged after reaching discharge index；It is divided into direct oxidation method and indirect oxidation method because of the difference of removing method, other than with the Oxidation of OH by outside the contaminants removal in waste water, By Electrocatalytic Oxidation also has the effects such as the Oxidation utilizing anode and electro-adsorption and carrys out the ability of pollutant in degrading waste water；Under the effect of the electric field produced at additional voltage, the chemical substance produced in the middle of utilizing or this intermediate product produced in course of reaction of electrode are by the contaminants removal in waste water；Reach effectively to remove the purpose of waste water。
Embodiment described above is only that the preferred embodiment of the present invention is described, and not the spirit and scope of the present invention is defined。Under the premise without departing from design concept of the present invention; various modification that technical scheme is made by this area ordinary person and improvement; protection scope of the present invention all should be dropped into, the technology contents that the present invention is claimed, all record in detail in the claims。
Claims (4)
1. an electric coagulation and electrocatalytic oxidation coupling device, it is characterised in that: include electricity coagulation district, and the electrocatalytic oxidation district installed with electricity coagulation district outfan；It is provided with the Fe positive plate made and minus plate that graphite is made inside described electricity coagulation district and electrocatalytic oxidation district；Described electrocatalytic oxidation district arranges microporous aeration device。
2. electricity coagulation according to claim 1 and electrocatalytic oxidation coupling device, it is characterised in that: the specification of described positive plate and minus plate is 170*30*2mm。
3. electricity coagulation according to claim 1 and electrocatalytic oxidation coupling device, it is characterised in that: described electricity coagulation district is 1: 1 with electrocatalytic oxidation district volume ratio。
4. an electric coagulation and electrocatalytic oxidation coupling device using method, it is characterised in that: described method comprises the steps:
The first step, electricity coagulation district regulates and electricity coagulation, and regulating positive plate and minus plate spacing inside electricity coagulation district is 3cm, and electric current density is 11mA/cm2；And waste water is imported to electricity coagulation district；Regulating waste water initial pH is 6；After running 30min, it is conducted into electrocatalytic oxidation district；Second step, electrocatalytic oxidation district regulates and electrocatalytic oxidation, adds into catalyst Mn-Ti-La/SiO in electrocatalytic oxidation district2Its consumption adds with the standard of every liter of sewage 250g catalyst, and regulating additional tank voltage is 15V, imports the waste water after electricity coagulation district processes, the original ph of waste water is adjusted to 4, is adjusted to 20ml/min (during 1L sewage, air demand increases with the increase of sewage volume) for air capacity；Monitoring waste water index, until water outlet is discharged after reaching discharge index。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027184.XA CN105692813A (en) | 2016-01-07 | 2016-01-07 | Electrocoagulation and electrocatalytic oxidation coupling device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027184.XA CN105692813A (en) | 2016-01-07 | 2016-01-07 | Electrocoagulation and electrocatalytic oxidation coupling device and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105692813A true CN105692813A (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610027184.XA Pending CN105692813A (en) | 2016-01-07 | 2016-01-07 | Electrocoagulation and electrocatalytic oxidation coupling device and use method thereof |
Country Status (1)
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| CN (1) | CN105692813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111620482A (en) * | 2019-02-27 | 2020-09-04 | 北京丰舜通环保科技有限公司 | Oil-water separation device and electrolytic separation chamber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1995221A1 (en) * | 2007-04-16 | 2008-11-26 | Sima 11, S.L. | Method for treating waters or liquid residues and bank of electrochemical reactors for treating said waters or residues in accordance with said method |
| CN104370350A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Electrochemistry apparatus for water treatment and method |
-
2016
- 2016-01-07 CN CN201610027184.XA patent/CN105692813A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1995221A1 (en) * | 2007-04-16 | 2008-11-26 | Sima 11, S.L. | Method for treating waters or liquid residues and bank of electrochemical reactors for treating said waters or residues in accordance with said method |
| CN104370350A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Electrochemistry apparatus for water treatment and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111620482A (en) * | 2019-02-27 | 2020-09-04 | 北京丰舜通环保科技有限公司 | Oil-water separation device and electrolytic separation chamber |
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Application publication date: 20160622 |