CN108178387A - A kind of electrochemical oxidation-iron carbon association system for handling organic wastewater with difficult degradation thereby - Google Patents
A kind of electrochemical oxidation-iron carbon association system for handling organic wastewater with difficult degradation thereby Download PDFInfo
- Publication number
- CN108178387A CN108178387A CN201711424051.7A CN201711424051A CN108178387A CN 108178387 A CN108178387 A CN 108178387A CN 201711424051 A CN201711424051 A CN 201711424051A CN 108178387 A CN108178387 A CN 108178387A
- Authority
- CN
- China
- Prior art keywords
- iron carbon
- draining pump
- cathode
- anode
- electrochemical oxidation
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 230000015556 catabolic process Effects 0.000 title claims abstract description 18
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 12
- 229910052799 carbon Inorganic materials 0.000 title claims description 12
- 229910052742 iron Inorganic materials 0.000 title claims description 12
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000006056 electrooxidation reaction Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010936 titanium Substances 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000005518 electrochemistry Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
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
- C02F1/46—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
- C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
-
- 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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The present invention discloses a kind of electrochemical oxidation iron carbon joint processing system of organic wastewater with difficult degradation thereby, it includes electrochemical oxidation reactions device, anode draining pump, iron carbon tower, cathode draining pump, iron carbon tower draining pump, mixing pit, mixing pit draining pump, sedimentation basin, electrochemical oxidation reactions device includes housing, anode, cathode, power supply, the bottom of housing is equipped with water inlet, anode and cathode are equivalent titanium-based porous tubular filter core electrode, one end is immersed in the waste water of housing, and the other end is connected with power supply；Anode is connected by pipeline, anode draining pump with the water inlet of iron carbon tower, the water outlet of iron carbon tower is connected by iron carbon tower draining pump with mixing pit, cathode is also connected by pipeline, cathode draining pump with mixing pit, and mixing pit is connected by mixing pit draining pump with sedimentation basin.The system can remove to economical and efficient persistent organic pollutants, lifting waste water discharge standard, realize the recycling of waste water.
Description
Technical field
The invention belongs to field of environment engineering technology, and in particular to a kind of electrochemistry oxygen for handling organic wastewater with difficult degradation thereby
Change-iron carbon association system.
Background technology
In recent years, electrochemical oxidation technology has received widespread attention in the process field of organic wastewater with difficult degradation thereby, but higher
Operating cost be still important bottleneck during its industrial applications.Electrochemical oxidation electrode used therein is generally board-like or net
Shape, in the process of running, yin, yang electrode surface can generate a large amount of bubbles, considerably increase system resistance, and energy consumption is caused to occupy height not
Under.Traditional solution mainly by the coating composition on modified electrode surface, increases the liberation of hydrogen and oxygen evolution potential of electrode, so as to
It reduces bubble yield or reduces bubble size, but of high cost, and the treatment effect of degradation of organic waste water can not be satisfactory.
Invention content
In view of the deficiencies of the prior art, the present invention proposes a kind of electrochemical oxidation-iron carbon for handling organic wastewater with difficult degradation thereby
Association system, acid, the alkali of operation energy consumption and iron carbon reactor which effectively reduces electrochemical oxidation reactions device add expense
With, and the treatment effect of organic wastewater with difficult degradation thereby is effectively increased, specific technical solution is as follows：
The electrochemical oxidation of a kind of organic wastewater with difficult degradation thereby-iron carbon joint processing system, which is characterized in that the system includes
Electrochemical oxidation reactions device 1, iron carbon tower 8, cathode draining pump 9, iron carbon tower draining pump 10, mixing pit 11, mixes anode draining pump 7
Pond draining pump 12, sedimentation basin 13 are closed, the electrochemical oxidation reactions device 1 includes housing 2, anode 4, cathode 5, power supply 6, described
Housing 2 bottom be equipped with water inlet 3, the anode 4 and cathode 5 are equivalent titanium-based porous tubular filter core electrode,
One end is immersed in the waste water of the housing 2, and the other end is connected with the power supply 6；The anode 4 passes through pipeline, anode
Draining pump 7 is connected with the water inlet of the iron carbon tower 8, the water outlet of the iron carbon tower 8 by iron carbon tower draining pump 10 with
The mixing pit 11 is connected, and the cathode 5 is also connected by pipeline, cathode draining pump 9 with the mixing pit 11, described
Mixing pit 11 be connected by the mixing pit draining pump 12 with the sedimentation basin 13.
Further, the aperture of the anode 4 and cathode 5 is 50-100 μm.
Further, the power supply 6 is constant voltage dc source.
Further, the power supply 6 is electrochmical power source.
Further, the drain discharge ratio of the anode 4 and cathode 5 is 1:1.
Compared with prior art, beneficial outcomes of the invention are as follows：
(1) it solves the bubble diffusion problem of electrode surface in electrochemical oxidation reactions device, effectively reduces electrochemistry oxygen
Change the operation energy consumption of reactor；
(2) highly basic of electrochemical oxidation reactions device cathode and anode generation and strong acid draining are taken full advantage of, effectively reduces iron
Acid, the alkali of carbon reactor add expense；
(3) being used in combination by electrochemical oxidation reactions device and iron carbon tower, effectively increases organic wastewater with difficult degradation thereby
Treatment effect.
Description of the drawings
Fig. 1 is the structure diagram of the processing system of the present invention；
In figure, 1- electrochemical oxidation reactions devices, 2- housings, 3- water inlets, 4- anodes, 5- cathodes, 6- DC power supplies, 7- sun
Pole draining pump, 8- iron carbon towers, 9- cathode draining pumps, 10- iron carbon tower draining pumps, 11- mixing pits, 12- mixing pit draining pumps, 13-
Sedimentation basin.
Specific embodiment
Below according to attached drawing and the preferred embodiment detailed description present invention, the objects and effects of the present invention will become brighter
In vain, below in conjunction with drawings and examples, the present invention will be described in further detail.It is it should be appreciated that described herein specific
Embodiment is only used to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of electrochemical oxidation-iron carbon association system for handling organic wastewater with difficult degradation thereby, including electrification
Learn oxidation reactor 1, anode draining pump 7, iron carbon tower 8, cathode draining pump 9, iron carbon tower draining pump 10, mixing pit 11, mixing pit
Draining pump 12, sedimentation basin 13, electrochemical oxidation reactions device 1 include housing 2, anode 4, cathode 5, power supply 6, and the bottom of housing 2 is set
There is water inlet 3, anode 4 and cathode 5 are titanium-based porous tubular filter core electrode, and one end is immersed in the waste water of housing 2, the other end
It is connected with power supply 6；Anode 4 is connected by pipeline, anode draining pump 7 with the water inlet of iron carbon tower 8, and the water outlet of iron carbon tower 8 leads to
It crosses iron carbon tower draining pump 10 with mixing pit 11 to be connected, cathode 5 is also connected by pipeline, cathode draining pump 9 with mixing pit 11, mixing
Pond 11 is connected by mixing pit draining pump 12 with sedimentation basin 13.
Wherein, anode 4 and cathode 5 are completely equivalent titanium-based porous tubular filter core electrode, and the aperture of micropore is 50-100 μ
The drain discharge ratio of m, anode 4 and cathode 5 is 1:1；Power supply uses constant voltage dc source or electrochmical power source.
The present invention effectively solves the resistance increase effect of bubble generation, porous tubular filter core using porous tubular filter core electrode
Electrode is hollow structure, and in the process of running, waste water uses the pattern of " Zhou Jinzhong goes out ", and the performance of porous tubular filter core electrode is led
The effect of water pipe, since external pressure is higher than internal pressure, the bubble that wastewater electrolytic generates does not diffuse in electrode inner surface
Main body water phase, the resistance increase effect that bubble can be avoided to generate, effectively reduces system energy consumption.Meanwhile anode can generate highly acid
Draining, and cathode can generate strong basicity draining.It is well known that iron carbon tower is also the commonly used equipment for handling organic wastewater with difficult degradation thereby,
It needs that acid and alkali tune, the expense that soda acid adds is adjusted to account for the 50-70% of overall running cost in the process of running.Microporous pipe will be used
The electrochemical oxidation reactions device of formula filter core electrode is joined together with iron carbon tower, can not only improve the processing effect of difficult organic wastewater
Fruit, and the strong acid of electrochemical oxidation generation and highly basic draining can be efficiently used, greatly reduce system operation cost.
The operation principle of electrochemical oxidation-iron carbon association system of the processing organic wastewater with difficult degradation thereby of the present invention is as follows：
In electrochemical oxidation reactions device 1, when DC power supply 6 is powered, anion is moved to anode 4 in waste water, sun from
Son is moved to cathode 5, is in the main reaction that 4 surface of anode occurs：
2Cl-=Cl2+2e-
Cl2+H2O=HClO+HCl
HClO=H++ClO-
4 draining of anode contains the HClO of strong oxidizing property, and it is organic can hardly degraded organic substance to be oxidized to degradable small molecule
Object or even it is oxidized to CO2。
It is in the main reaction that 5 surface of cathode occurs：
2H2O+2e-=H2+2OH-
Na++OH-=NaOH
5 draining of cathode is strong basicity, and salinity is higher.
When the acid effluent of anode 4 is pumped to iron carbon tower 8, following galvanic interaction occurs in tower：
Anode：Fe-2e-=Fe2+
Cathode：2H++2e-=2 [H]=H2
React the nascent state Fe generated2+[H], have high chemism, can aoxidize with reducing waste water in many organic matters,
The effects that making organic matter that chain rupture, open loop occur.
When 5 draining of cathode is pumped into mixing pit 11, acid-base neutralization reaction occurs, due to consuming part H in iron carbon tower 8+,
So waste water is in alkalinity in mixing pit 11, the key reaction of generation is as follows：
H++OH-=H2O
Fe2++2OH-=Fe (OH)2
Fe3++3OH-=Fe (OH)3
In sedimentation basin 13, the Fe (OH) of generation2With Fe (OH)3Flocculation precipitation reaction occurs, while it is organic to remove part
Pollutant.
The system can economical and efficient removal persistent organic pollutants, the water standard of lifting waste water discharge, and advantageous
In the recycling for realizing waste water.
Above-mentioned specific embodiment is used for illustrating the present invention rather than limiting the invention, in the essence of the present invention
In the protection domain of god and principles and requirements, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (5)
1. the electrochemical oxidation of a kind of organic wastewater with difficult degradation thereby-iron carbon joint processing system, which is characterized in that the system includes electricity
Chemical oxidation reaction device (1), anode draining pump (7), iron carbon tower (8), cathode draining pump (9), iron carbon tower draining pump (10), mixing
Pond (11), mixing pit draining pump (12), sedimentation basin (13), the electrochemical oxidation reactions device (1) include housing (2), anode
(4), cathode (5), power supply (6), the bottom of the housing (2) are equipped with water inlet (3), and the anode (4) and cathode (5) are
Equivalent titanium-based porous tubular filter core electrode, one end are immersed in the waste water of the housing (2), the other end and the power supply
(6) it is connected；The anode (4) is connected by pipeline, anode draining pump (7) with the water inlet of the iron carbon tower (8), described
The water outlet of iron carbon tower (8) be connected by iron carbon tower draining pump (10) with the mixing pit (11), the cathode (5) is logical
It crosses pipeline, cathode draining pump (9) also with the mixing pit (11) to be connected, the mixing pit (11) passes through the mixing pit
Draining pump (12) is connected with the sedimentation basin (13).
2. the processing system of organic wastewater with difficult degradation thereby according to claim 1, which is characterized in that the anode (4) and
The aperture of cathode (5) is 50-100 μm.
3. the electrochemical oxidation of organic wastewater with difficult degradation thereby according to claim 1 or 2-iron carbon joint processing system, special
Sign is that the power supply (6) is constant voltage dc source.
4. the electrochemical oxidation of organic wastewater with difficult degradation thereby according to claim 1 or 2-iron carbon joint processing system, special
Sign is that the power supply (6) is electrochmical power source.
5. the electrochemical oxidation of organic wastewater with difficult degradation thereby according to claim 1-iron carbon joint processing system, feature exist
In the drain discharge ratio of the anode (4) and cathode (5) is 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711424051.7A CN108178387A (en) | 2017-12-25 | 2017-12-25 | A kind of electrochemical oxidation-iron carbon association system for handling organic wastewater with difficult degradation thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711424051.7A CN108178387A (en) | 2017-12-25 | 2017-12-25 | A kind of electrochemical oxidation-iron carbon association system for handling organic wastewater with difficult degradation thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108178387A true CN108178387A (en) | 2018-06-19 |
Family
ID=62547402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711424051.7A Pending CN108178387A (en) | 2017-12-25 | 2017-12-25 | A kind of electrochemical oxidation-iron carbon association system for handling organic wastewater with difficult degradation thereby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108178387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250255A (en) * | 2020-10-19 | 2021-01-22 | 张家港市杨舍丝印工艺厂 | Wastewater treatment process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696069A (en) * | 2009-10-14 | 2010-04-21 | 大连交通大学 | Ultra advanced treatment method and device for sewage |
| CN207294453U (en) * | 2017-12-25 | 2018-05-01 | 浙江飞源环境工程有限公司 | Handle electrochemical oxidation-iron carbon association system of organic wastewater with difficult degradation thereby |
-
2017
- 2017-12-25 CN CN201711424051.7A patent/CN108178387A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696069A (en) * | 2009-10-14 | 2010-04-21 | 大连交通大学 | Ultra advanced treatment method and device for sewage |
| CN207294453U (en) * | 2017-12-25 | 2018-05-01 | 浙江飞源环境工程有限公司 | Handle electrochemical oxidation-iron carbon association system of organic wastewater with difficult degradation thereby |
Non-Patent Citations (2)
| Title |
|---|
| 张艳桥;: "铁炭微电解法处理黄连素废水应用研究" * |
| 李彦生;李永斌;柳志刚;: "电渗透离子交换法深度净化污水的机理及应用初探" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112250255A (en) * | 2020-10-19 | 2021-01-22 | 张家港市杨舍丝印工艺厂 | Wastewater treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101781054B (en) | Method for utilizing three-dimensional electrode coagulation combination to carry out advanced treatment on coking wastewater | |
| CN107117690B (en) | Device and method for treating refractory pollutants through electrocatalytic oxidation | |
| CN105439258A (en) | Wastewater treatment method through generating H2O2 with in situ electricity to cooperate with O3 to oxidize | |
| CN102992453B (en) | Two-phase circulating catalytic oxidation device | |
| CN104085962B (en) | Electrochemical in-situ produces the method and apparatus of hydroxyl radical free radical | |
| CN103359876A (en) | Harmless dimethylacetamide wastewater treatment method | |
| CN103613254B (en) | The deep treatment method of fine chemistry industry garden sewage work organic wastewater with difficult degradation thereby | |
| CN201567249U (en) | Ultrasonic electrochemical wastewater treatment device | |
| CN105198131A (en) | Method for treating waste water through double catalytic oxidation process and device for achieving method | |
| CN105084648A (en) | Treatment method for hardly biodegraded sewage | |
| CN104496008B (en) | The Apparatus and method for of a kind of electrochemistry-biological coupling process organic waste water | |
| Qu et al. | Novel electrochemical advanced oxidation processes with H2O2 generation cathode for water treatment: A review | |
| CN107162161B (en) | Separated venturi tube type hybrid electrocatalytic ozonization method and device | |
| CN102659290A (en) | Method for advanced treatment of high-concentration chemi-mechanical pulp effluent by catalytic oxidation | |
| CN110066054A (en) | Electric Fenton system and landfill leachate thick liquid processing method for the processing of landfill leachate dope | |
| CN109368746A (en) | A kind of high COD, difficult biochemical waste water pretreatment unit pretreatment system and method | |
| CN211946615U (en) | Electrochemical coupling ozone micro-nano bubble processing system | |
| CN207294453U (en) | Handle electrochemical oxidation-iron carbon association system of organic wastewater with difficult degradation thereby | |
| CN203319806U (en) | Electrolysis dephosphorization device for treating domestic sewage | |
| CN208762301U (en) | A kind of depth removes the device of cyanide in coking wastewater | |
| CN106904696B (en) | Jet aeration electrochemical oxidation repair system for brackish black and odorous water body | |
| CN206705926U (en) | A kind of efficient chemical sewage disposal device | |
| CN105198049A (en) | Method of sewage treatment | |
| CN103172206A (en) | Oily sewage treatment device | |
| CN105152421A (en) | Treatment method of distillation extraction waste liquid in fine chemical engineering production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Xiangfu Street hole Jia Dai Cun 160, No. 161 Building 1 room 514 Applicant after: Zhejiang feiyuan Environmental Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310011 Gongshu District Xiangfu Street hole Jia Dai Cun 160, No. 161 Building 1 room 514 Applicant before: ZHEJIANG FEIYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 310012 building F, building a, Tiantang Software Park, No.3 xidoumen Road, Xihu District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang feiyuan Environmental Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310011 Gongshu District Xiangfu Street hole Jia Dai Cun 160, No. 161 Building 1 room 514 Applicant before: Zhejiang feiyuan Environmental Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180619 |
|
| WD01 | Invention patent application deemed withdrawn after publication |