Nothing Special   »   [go: up one dir, main page]

CN101863589A - Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter - Google Patents

Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter Download PDF

Info

Publication number
CN101863589A
CN101863589A CN 201010200264 CN201010200264A CN101863589A CN 101863589 A CN101863589 A CN 101863589A CN 201010200264 CN201010200264 CN 201010200264 CN 201010200264 A CN201010200264 A CN 201010200264A CN 101863589 A CN101863589 A CN 101863589A
Authority
CN
China
Prior art keywords
wastewater
ozone
water
sewage
catalytic ozonation
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.)
Granted
Application number
CN 201010200264
Other languages
Chinese (zh)
Other versions
CN101863589B (en
Inventor
王亚明
唐新亮
张金钧
陈建军
雷勇
宋小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHONGHAI ASPHALT (TAIZHOU) CO Ltd
China National Offshore Oil Corp CNOOC
CNOOC Taizhou Petrochemical Co Ltd
Original Assignee
ZHONGHAI ASPHALT (TAIZHOU) CO Ltd
China National Offshore Oil Corp CNOOC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHONGHAI ASPHALT (TAIZHOU) CO Ltd, China National Offshore Oil Corp CNOOC filed Critical ZHONGHAI ASPHALT (TAIZHOU) CO Ltd
Priority to CN2010102002643A priority Critical patent/CN101863589B/en
Publication of CN101863589A publication Critical patent/CN101863589A/en
Application granted granted Critical
Publication of CN101863589B publication Critical patent/CN101863589B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention discloses a method for the advanced treatment of wastewater. The method comprises the following steps of: 1) filtering off-standard wastewater, delivering the wastewater into a catalytic ozonation tower, and simultaneously adding ozone for contact oxidization reaction; 2) delivering the effluent of the catalytic ozonation tower into an oxidization buffer stabilization basin for stabilization; 3) and after the stabilization, delivering the effluent into a BAF basin for treatment, and delivering discharged water into a clean water basin. The method reduces the addition amount of the ozone, improves the utilization efficiency of the ozone, converts the ozone into hydroxyl radicals by using a metal catalyst, and reduces the activation energy of hydroxyl radical oxidation reaction to promote hardly biodegradable macromolecule organic substances in the wastewater to be oxidized into easily biodegradable micromolecule substances, so that the biochemical limit to refining the wastewater is broken through and the biodegradability of the wastewater is increased; and the water quality of the effluent can meet the provincial standard of Jiangsu province, namely Chemical Industry Main Water Pollutant Discharge Standard, completely by further treatment in the BAF basin.

Description

The method of advanced treatment of wastewater is carried out in a kind of using ozone catalyzed oxidation and internal circulation biological filter combination
Technical field
The present invention relates to the combination of a kind of using ozone catalyzed oxidation and internal circulation biological filter and carry out the method for advanced treatment of wastewater.
Background technology
At present, most of easily degraded type organic is handled for a long time by biochemical in the refinery sewage, and removal substantially is degraded.And difficult degradation type organics such as nitrogen heterocyclic ring class and polycyclic aromatic hydrocarbons are not the oxidation of biological institute basically, and solubility microbial product (SMP) biodegradation rate that produces in the process of biochemical treatment simultaneously is very slow.Therefore, directly with biological process refinery water being carried out advanced treatment obviously falls flat, at present domestic comparatively advanced method is to adopt ozone oxidation and biological aerated filter technical finesse lower concentration hardly degraded organic substance, but exist the ozone dosage too big, utilization ratio is low, speed of response is slow, energy consumption is high to be reached problems such as organic selectivity are strong, prior art comes aspects such as sewage quality modification raising biodegradability are not played expected effect by ozone oxidation simultaneously, ozone oxidation is not brought into play expected effect, the macromolecular substance of difficult degradation is not oxidized to the small-molecule substance of easy degraded, do not have effectively to improve the biodegradability of poor nutritional substance in the biochemical section sewage of back, cause the generate subsequent metallization processes can not bring into play the biological degradation function of its expection.
Summary of the invention
Advanced treatment method for sewage water provided by the present invention comprises the steps:
1) enters the catalytic ozonation tower behind the below standard sewage water filtration, and in described catalytic ozonation tower, add ozone simultaneously, carry out catalytic oxidation;
2) make the water outlet of catalytic ozonation tower enter in the oxidation buffer stabilization pond stable;
3) after stable, enter inner circulating aerating biological filtering tank again and handle, the water of discharge enters clean water basin.
Wherein, in the step 1) dosage of ozone described in every liter of sewage less than 15mg; The dosage of ozone is relevant with the organic content in the waste water, and the suitableeest dosage is 8-12mg.
Step 2) catalyzer in the tower of catalytic ozonation described in exists with the form of fixed bed, and described catalyzer specifically can be the agent of metal ion loading type ozone catalytic, and the model of producing as ring Environmental Protection Technology Co., Ltd of Suzhou section is the Cu/TiO of KH-SC-XT 2/ Al 2O 3Catalyzer.
The present invention adopts metal catalyst that ozone is converted into hydroxyl radical free radical, reduce the activation energy of hydroxyl radical free radical oxidizing reaction simultaneously, make the larger molecular organics of difficult degradation in the sewage be more prone to be oxidized into the small-molecule substance of readily biodegradable, even directly be degraded to carbonic acid gas and water, improve biodegradability.
Owing to still also have certain density ozone and hydroxyl radical free radical (OH) in the water outlet of ozone oxidation tower, have strong oxidation and germicidal action, can not directly enter inner circulating aerating biological filtering tank (BAF pond), need to stablize residual ozone and hydroxyl radical free radical (OH) to be decomposed fully in 0.5-4 hour.
Method of the present invention enters water collecting basin with below standard sewage earlier, entering more medium filter through the pump lifting filters, remove suspended substance in the water, purpose is to reduce the oxidation load that enters the catalyzed oxidation tower, improve the service efficiency of ozone, reduce obstruction simultaneously, the normal operation and the effluent quality of assurance device to oxidizing tower.The water outlet of strainer enters the catalyzed oxidation tower of metal catalyst, throw in certain density ozonized air simultaneously, under the effect of metal catalyst, the ozone of hyperoxia voltinism is transformed into hydroxyl radical free radical, and (hydroxyl radical free radical is a kind of strong oxidizer, the organism speed of response is fast in it and the sewage, and low to organic selectivity.), also reduced the activation energy of hydroxyl radical free radical oxidizing reaction simultaneously, with macromolecular pollutant oxidation, chain rupture, be transformed into the small molecules that is easy to biochemistry, even directly be degraded to carbonic acid gas and water, broken through the biochemical limit of refinery sewage, improve the biodegradability of sewage, reduce the colourity of sewage.The oxidizing tower water outlet is from flowing into the oxidation buffer stabilization pond, owing to still also have certain density ozone and hydroxyl radical free radical (OH) in the water outlet of ozone oxidation tower, have strong oxidation and germicidal action, can not directly enter biochemical system internal recycle BAF pond, back, need to stablize residual ozone and hydroxyl radical free radical (OH) to be decomposed fully in 0.5-4 hour, guarantee that it is not to microorganisms toxic action in the biological filter.Through the sewage after the modification of catalyzed oxidation tower, gravity flow enters internal recycle BAF pond and carries out biochemical treatment, utilize internal recycle BAF pond to carry out organic pollutant in the biochemical degradation sewage, microorganism oxidizes away organic pollutant in internal recycle BAF pond, organic carbon is converted into inorganic carbon, guarantees the stably reaching standard of follow-up water outlet.Internal recycle BAF draining gravity flow enters clean water basin, and overflows mouth of a river discharge by clean water basin.Clean water basin also provide backwash water for the back flushing of facilities such as internal recycle BAF pond, strainer and catalyzed oxidation tower simultaneously, all the muddy water mixed solution of back flushing discharge enters the mud-water separation pond, supernatant liquor enters original system oily(waste)water pond, and sedimentary mud uses muddy water to be pumped to three mud water knockouts.Remove pollutents such as COD, ammonia nitrogen, petroleum-type, suspended substance by catalytic ozonation and internal circulation biological filter combination process,, improved removal efficient, reduced processing cost than other technology.
After adopting above technical scheme, the present invention has following beneficial effect:
1) water quality of refinery sewage is carried out degree of depth modification, even directly be degraded to carbonic acid gas and water, broken through the biochemical limit of refinery sewage, increased its biodegradability, carried out further biochemical treatment by the internal recycle biological aerated filter again and remove organic pollutant (the COD clearance can reach 40%) remaining in the sewage.
2) stable, the ozone dosage O of present method 3<15mg/L, working cost low (the newly-increased processing cost of sewage per ton is about 0.5 yuan), operational management is simple, floor space is little, initial cost is few.Effluent quality after the processing is as clear as crystal, suspended substance≤10mg/L, COD<60mg/L, oleaginousness<5mg/L, ammonia nitrogen<15mg/L reaches Jiangsu Province's provincial standard fully--" the main pollution discharge standard of chemical industry ", and effluent quality has reached petroleum chemical enterprise's reuse water standard after handling, reduce organic quantity discharged, produced social benefit energetically, realized the harmonious development of man and nature.
3) present method is not added other chemical agents, does not produce secondary pollution.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Following embodiment is convenient to understand better the present invention, but does not limit the present invention.Experimental technique among the following embodiment if no special instructions, is ordinary method.Used test materials among the following embodiment if no special instructions, is to buy from routine biochemistry reagent shop and obtains.
Embodiment 1, employing catalytic ozonation and internal circulation biological filter combination are handled refinery sewage
Adopt technical process shown in Figure 1 that this refinery sewage is handled.
A). below standard refinery sewage (water quality analysis sees Table 1) is promoted through pump, enter strainer and filter;
B). (catalyzer in the catalytic ozonation tower is: Cu/TiO to enter the catalytic ozonation tower through the water after filtering 2/ Al 2O 3, model: KH-SC-XT, manufacturer:, and carry out contact oxidation, reaction 0.5h Suzhou section ring Environmental Protection Technology Co., Ltd) with the ozone that adds simultaneously; The dosage of ozone is a 8-12mg/L sewage;
C). the oxidizing tower water outlet enters the oxidation buffer stabilization pond and stablizes 0.5-4h;
D). after stable, enter internal recycle BAF pond again and handle;
E). the draining gravity flow enters clean water basin, and overflows mouth of a river discharge by clean water basin, and the water quality analysis of this drainage water sees Table 1.
F). backwashing pump provides backwash water for the back flushing of internal recycle BAF pond, strainer and catalyzed oxidation tower.
Table 1, water quality analysis before and after treatment
As shown in Table 1, effluent quality after method of the present invention is handled is as clear as crystal, COD<60mg/L, reach Jiangsu Province's provincial standard fully--" the main pollution discharge standard of chemical industry ", and effluent quality has reached petroleum chemical enterprise's reuse water standard after handling, and has reduced organic quantity discharged.

Claims (6)

1. an advanced treatment method for sewage water comprises the steps:
1) enters the catalytic ozonation tower behind the below standard sewage water filtration, and in described catalytic ozonation tower, add ozone simultaneously, carry out catalytic oxidation;
2) make the water outlet of catalytic ozonation tower enter in the oxidation buffer stabilization pond stable;
3) after stable, enter inner circulating aerating biological filtering tank again and handle, the water of discharge enters clean water basin.
2. method according to claim 1 is characterized in that: the dosage of ozone is less than 15mg described in every liter of sewage of step 1).
3. method according to claim 1 and 2 is characterized in that: the dosage of ozone is 8-12mg described in every liter of sewage of step 1).
4. according to arbitrary described method among the claim 1-3, it is characterized in that: the catalyzer described in the step 1) in the described catalytic ozonation tower exists with the form of fixed bed.
5. according to arbitrary described method among the claim 1-4, it is characterized in that: step 2) in described oxidation buffer stabilization pond the stable time be 0.5-4 hour.
6. according to arbitrary described method among the claim 1-5, it is characterized in that: sewage described in the step 1) is refinery sewage.
CN2010102002643A 2010-06-09 2010-06-09 Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter Active CN101863589B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102002643A CN101863589B (en) 2010-06-09 2010-06-09 Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102002643A CN101863589B (en) 2010-06-09 2010-06-09 Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter

Publications (2)

Publication Number Publication Date
CN101863589A true CN101863589A (en) 2010-10-20
CN101863589B CN101863589B (en) 2012-04-18

Family

ID=42955561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102002643A Active CN101863589B (en) 2010-06-09 2010-06-09 Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter

Country Status (1)

Country Link
CN (1) CN101863589B (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103304096A (en) * 2013-06-13 2013-09-18 中国海洋石油总公司 Method for performing ozone catalysis-coupled biological nitrification treatment on acrylonitrile wastewater
CN103979735A (en) * 2014-05-21 2014-08-13 青岛中通臭氧科技有限公司 Process and device for treating refractory industrial wastewater
CN104193114A (en) * 2014-09-18 2014-12-10 广东溢达纺织有限公司 Sewage treatment method and sewage treatment system
CN104609533A (en) * 2015-01-27 2015-05-13 北京中科圣泰环境科技有限公司 Control system and method for degradation-resistant organic wastewater ozone heterogeneous catalysis oxidation treatment process
CN104671391A (en) * 2015-01-27 2015-06-03 北京中科圣泰环境科技有限公司 Ozone heterogeneous catalysis oxidization treatment device and technology for hardly degradable organic wastewater
CN104787924A (en) * 2015-03-13 2015-07-22 苏州科环环保科技有限公司 Caprolactam sewage advanced treatment method using ozone catalytic oxidation
CN105540927A (en) * 2016-01-11 2016-05-04 新疆环境工程技术有限责任公司 Cotton pulp wastewater treatment integration technology
CN105776760A (en) * 2016-04-20 2016-07-20 北京桑德环境工程有限公司 Advanced treatment system and method for crushed coal pressurized gasification waste water
CN106277636A (en) * 2016-09-13 2017-01-04 成都赋阳技术开发有限公司 A kind of sewage purification processing system
CN106315908A (en) * 2015-06-29 2017-01-11 宝山钢铁股份有限公司 Deep processing method and device of cold rolling oil-containing wastewater
CN106467343A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 Advanced treatment device for petrochemical industry high saline sewage qualified discharge
CN106467347A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 High saliferous phenolic wastewater treatment technique
CN106467344A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 Water treatment facilities for high saline sewage qualified discharge
CN106467345A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 Green biochemical processing method for reverse osmosis concentrated water
CN106517515A (en) * 2016-10-21 2017-03-22 中海油天津化工研究设计院有限公司 Deep treatment system and method for ozone combined biological filters
CN106630365A (en) * 2015-08-19 2017-05-10 苏州科环环保科技有限公司 Green and environment-friendly RO (reverse osmosis) concentrated water advanced treatment device
CN109320013A (en) * 2018-10-31 2019-02-12 首创爱华(天津)市政环境工程有限公司 A kind of advanced treatment method for sewage water
CN110540336A (en) * 2018-05-29 2019-12-06 中国石油化工股份有限公司 treatment method and application of ammoximation wastewater
CN111115984A (en) * 2020-02-09 2020-05-08 安徽绿衡环保科技有限公司 Sewage treatment process and device for infectious disease hospital
CN111285491A (en) * 2018-12-07 2020-06-16 中国石油天然气股份有限公司 Concentrated water treatment method and treatment device
CN113185066A (en) * 2021-06-07 2021-07-30 北洋桥(天津)科技有限公司 Sewage treatment method for high-polymer high-salt oil extraction wastewater
CN113429082A (en) * 2021-07-27 2021-09-24 福建省环境保护设计院有限公司 Advanced treatment system for non-membrane industrial organic wastewater
CN115259568A (en) * 2022-08-17 2022-11-01 广东省适然环境科技研究有限公司 Treatment method for treating chemical wastewater by using ozone advanced oxidation technology

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000254674A (en) * 1999-03-08 2000-09-19 Hitachi Ltd Water treatment and the device
CN1724420A (en) * 2005-06-14 2006-01-25 华南理工大学 Process for combined water treatment of chemical oxidizing-biological biological filtering tank
CN1792896A (en) * 2005-10-28 2006-06-28 华南理工大学 Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool
CN101070216A (en) * 2007-06-18 2007-11-14 华南理工大学 Integrated ozone and aeration biological filtering pool water treatment apparatus and method
CN101323493A (en) * 2008-07-24 2008-12-17 华南理工大学 Waste water treatment apparatus based on ozone oxidation and aerating biological filter
CN101376556A (en) * 2008-09-24 2009-03-04 华南理工大学 Ozone oxidation sterilizing and downflow type aerating biological filter combined waste water treatment apparatus
CN101700944A (en) * 2009-09-16 2010-05-05 汤苏云 Method for increasing utilization rate of ozone jointly processing waste water with biological aerated filter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000254674A (en) * 1999-03-08 2000-09-19 Hitachi Ltd Water treatment and the device
CN1724420A (en) * 2005-06-14 2006-01-25 华南理工大学 Process for combined water treatment of chemical oxidizing-biological biological filtering tank
CN1792896A (en) * 2005-10-28 2006-06-28 华南理工大学 Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool
CN101070216A (en) * 2007-06-18 2007-11-14 华南理工大学 Integrated ozone and aeration biological filtering pool water treatment apparatus and method
CN101323493A (en) * 2008-07-24 2008-12-17 华南理工大学 Waste water treatment apparatus based on ozone oxidation and aerating biological filter
CN101376556A (en) * 2008-09-24 2009-03-04 华南理工大学 Ozone oxidation sterilizing and downflow type aerating biological filter combined waste water treatment apparatus
CN101700944A (en) * 2009-09-16 2010-05-05 汤苏云 Method for increasing utilization rate of ozone jointly processing waste water with biological aerated filter

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103304096A (en) * 2013-06-13 2013-09-18 中国海洋石油总公司 Method for performing ozone catalysis-coupled biological nitrification treatment on acrylonitrile wastewater
CN103979735A (en) * 2014-05-21 2014-08-13 青岛中通臭氧科技有限公司 Process and device for treating refractory industrial wastewater
CN104193114A (en) * 2014-09-18 2014-12-10 广东溢达纺织有限公司 Sewage treatment method and sewage treatment system
CN104609533A (en) * 2015-01-27 2015-05-13 北京中科圣泰环境科技有限公司 Control system and method for degradation-resistant organic wastewater ozone heterogeneous catalysis oxidation treatment process
CN104671391A (en) * 2015-01-27 2015-06-03 北京中科圣泰环境科技有限公司 Ozone heterogeneous catalysis oxidization treatment device and technology for hardly degradable organic wastewater
CN104787924A (en) * 2015-03-13 2015-07-22 苏州科环环保科技有限公司 Caprolactam sewage advanced treatment method using ozone catalytic oxidation
CN106315908B (en) * 2015-06-29 2019-12-31 宝山钢铁股份有限公司 Deep treatment method and device for cold rolling oily wastewater
CN106315908A (en) * 2015-06-29 2017-01-11 宝山钢铁股份有限公司 Deep processing method and device of cold rolling oil-containing wastewater
CN106467345A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 Green biochemical processing method for reverse osmosis concentrated water
CN106630365A (en) * 2015-08-19 2017-05-10 苏州科环环保科技有限公司 Green and environment-friendly RO (reverse osmosis) concentrated water advanced treatment device
CN106467343A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 Advanced treatment device for petrochemical industry high saline sewage qualified discharge
CN106467347A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 High saliferous phenolic wastewater treatment technique
CN106467344A (en) * 2015-08-19 2017-03-01 苏州科环环保科技有限公司 Water treatment facilities for high saline sewage qualified discharge
CN105540927A (en) * 2016-01-11 2016-05-04 新疆环境工程技术有限责任公司 Cotton pulp wastewater treatment integration technology
CN105776760B (en) * 2016-04-20 2018-09-25 北京桑德环境工程有限公司 A kind of advanced treatment system and method for crushed coal pressure gasifying waste water
CN105776760A (en) * 2016-04-20 2016-07-20 北京桑德环境工程有限公司 Advanced treatment system and method for crushed coal pressurized gasification waste water
CN106277636A (en) * 2016-09-13 2017-01-04 成都赋阳技术开发有限公司 A kind of sewage purification processing system
CN106517515A (en) * 2016-10-21 2017-03-22 中海油天津化工研究设计院有限公司 Deep treatment system and method for ozone combined biological filters
CN110540336A (en) * 2018-05-29 2019-12-06 中国石油化工股份有限公司 treatment method and application of ammoximation wastewater
CN109320013A (en) * 2018-10-31 2019-02-12 首创爱华(天津)市政环境工程有限公司 A kind of advanced treatment method for sewage water
CN111285491A (en) * 2018-12-07 2020-06-16 中国石油天然气股份有限公司 Concentrated water treatment method and treatment device
CN111115984A (en) * 2020-02-09 2020-05-08 安徽绿衡环保科技有限公司 Sewage treatment process and device for infectious disease hospital
CN113185066A (en) * 2021-06-07 2021-07-30 北洋桥(天津)科技有限公司 Sewage treatment method for high-polymer high-salt oil extraction wastewater
CN113429082A (en) * 2021-07-27 2021-09-24 福建省环境保护设计院有限公司 Advanced treatment system for non-membrane industrial organic wastewater
CN115259568A (en) * 2022-08-17 2022-11-01 广东省适然环境科技研究有限公司 Treatment method for treating chemical wastewater by using ozone advanced oxidation technology

Also Published As

Publication number Publication date
CN101863589B (en) 2012-04-18

Similar Documents

Publication Publication Date Title
CN101863589B (en) Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter
CN101708935B (en) Method for treating container washing wastewater
KR101246847B1 (en) Landfill leachate wastewater treatment system and process thereof
CN104261617B (en) The processing method of waste emulsified mixture
CN106927628A (en) Light electrolysis-Fenton-EGSB-A/O-BCO-BAF-coagulating treatment pharmacy waste water technique
CN106830544A (en) Light electrolysis Fenton EGSB A/O BCO BAF coagulating treatment pharmacy waste water systems
CN105481177A (en) Low-consumption nitrification and denitrification coal chemical wastewater advanced treatment device
CN104003578B (en) The method of a kind of pair of section ozone-BAF combined treatment trade effluent
CN101693569A (en) Device for catalyzing and oxidating ozone effectively
CN203307175U (en) Deep coking wastewater treatment device by using advanced oxidation process combined with membrane bioreactor
CN106830536A (en) A kind of advanced treatment process of ferment antibiotics waste water
CN105060633A (en) Petrochemical wastewater advanced treatment method
CN101402506A (en) Process for treating dimethyl sulfoxide wastewater with photocatalysis and oxidization combined film bioreactor
CN105481174A (en) Wastewater treatment system in rubber and synthetic plastic industry
CN105481170A (en) Treating system and method for coking waste water
CN205045948U (en) Petrochemical is efficient handling of discharging equipment for sewage
CN212293233U (en) Low-concentration degradation-resistant chemical wastewater treatment system
CN110498547A (en) A kind of multistage multiple-effect catalysis advanced oxidation advanced treatment method for carbonization wastewater and device
CN107352742B (en) Electrochemical composite oxidation process and system for refractory sewage
CN102363549A (en) Deep treatment system of membraneless industrial organic wastewater
CN110228898A (en) A kind of technique of catalytic ozonation-MBR Combined Treatment coal chemical industrial waste water
CN201276438Y (en) Intelligent ultrasonic vibration membrane biological reaction sewage treatment and reclaimed water recycling apparatu
CN206624744U (en) Light electrolysis Fenton EGSB A/O BCO BAF coagulating treatment pharmacy waste water systems
CN102060417A (en) Process and device for treating waste water in CLT acid production
CN203373242U (en) Oil refining wastewater biochemical treatment system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee after: Zhonghai asphalt (Taizhou) Co., Ltd.

Patentee after: China Offshore Oil Group Co., Ltd.

Co-patentee after: Zhonghai asphalt (Taizhou) Co., Ltd.

Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee before: Zhonghai asphalt (Taizhou) Co., Ltd.

Patentee before: China National Offshore Oil Corporation

Co-patentee before: Zhonghai asphalt (Taizhou) Co., Ltd.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20190723

Address after: 100000 Beijing, Chaoyangmen, North Street, No. 25, No.

Co-patentee after: CNOOC TAIZHOU PETROCHEMICAL CO., LTD.

Patentee after: China Offshore Oil Group Co., Ltd.

Co-patentee after: Zhonghai Asphalt (Taizhou) Co., Ltd.

Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No.

Co-patentee before: Zhonghai asphalt (Taizhou) Co., Ltd.

Patentee before: China Offshore Oil Group Co., Ltd.

Co-patentee before: Zhonghai asphalt (Taizhou) Co., Ltd.

TR01 Transfer of patent right