CN102010105B - Advanced treatment process for non-degradable petrochemical waste water and device - Google Patents
Advanced treatment process for non-degradable petrochemical waste water and device Download PDFInfo
- Publication number
- CN102010105B CN102010105B CN 201010568753 CN201010568753A CN102010105B CN 102010105 B CN102010105 B CN 102010105B CN 201010568753 CN201010568753 CN 201010568753 CN 201010568753 A CN201010568753 A CN 201010568753A CN 102010105 B CN102010105 B CN 102010105B
- Authority
- CN
- China
- Prior art keywords
- reaction device
- water
- waste water
- reaction unit
- ozone contact
- 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.)
- Active
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses an advanced treatment process for non-degradable petrochemical waste water and a device, wherein the process comprises the following steps: 1), the waste water output by a secondary clarifier in a petrochemical waste water treating factory enters an adjusting pool reaction device for adjusting the water quality and water amount of the waste water output by the secondary clarifier; 2), the waste water discharged by the adjusting pool reaction device enters an air floating reaction device to effectively remove the suspended matter, the colloid, part of COD and the oil polluted substance in the waste water via flocculation absorption; 3), the waste water processed by the air floating reaction device enters an ozone contact reaction device to remove part of the COD and the chroma in the waste water and improve the biochemical performance; and 4), the waste water processed by the ozone contact reaction device is output to a bioactive carbon reaction device to remove the organic polluted substance, thereby further reducing the COD, the NH3-N and the chroma and ensuring the stability of the outlet water. The process and the device in the invention are high in treatment efficiency to the non-degradable petrochemical waste water; the processed water is stable and up to the standard and can be reused; and the cost is low.
Description
Technical field
The present invention is about a kind of sewage treatment process and equipment; More particularly, about a kind of advanced treatment process and device of difficult degradation petrochemical wastewater.
Background technology
Because oil-refining chemical production product category is many, the waste water water yield that different production lines are discharged is large, water-quality constituents is complicated, and have concentration high, mostly be poisonous and harmful substances, the characteristics such as B/C is low, and biodegradability is relatively poor.Because the water yield, potential of hydrogen change greatly, often form impact load.At present, domestic such waste water generally adopts pre-treatment, secondary biochemical treatment, and the COD of water outlet from the angle of wastewater processing technology level and Economic and Efficiency Analysis, estimates such wastewater treatment degree and reached satisfied level below 120mg/L after processing.But these waste water can't be re-used, and the shortage of present water resources, nation needs re-uses waste water, therefore the concentration limit of discharge of wastewater is improved year by year, processes proposition favourable technique and device but also waste water is not done to carry out a step.
Summary of the invention
The object of the present invention is to provide and a kind ofly can make further advanced treatment is reused requirement to meet petroleum chemical enterprise technique and device to the waste water of after sewage work processes, discharging.
The advanced treatment process of difficult degradation petrochemical wastewater includes the following step among the present invention:
1) waste water of petrochemical wastewater treatment plant second pond output enters the equalizing tank reaction unit, utilizes the equalizing tank reaction unit that the waste water of described second pond output is carried out the water quality and quantity adjusting;
2) the described equalizing tank reaction unit waste water of discharging enters the air supporting reaction unit through lift pump, effectively removes suspended substance, colloid, part COD, pollution by oil material in the waste water by the flocculation adsorption;
3) enter intermediate pool by the waste water after the described air supporting reaction unit processing, prevent that excessive waste water from directly entering the ozone contact reaction device, enter the ozone contact reaction device through lift pump lifting and water sprayer again, the negative pressure that described waste water forms by means of water sprayer before entering the ozone contact reaction device sucks ozone, enter the ozone contact reaction device after making ozone and waste water fully mixing, after described ozone contact reaction device is processed, remove part COD and colourity in the waste water, biodegradability improves simultaneously;
4) enter intermediate pool by the waste water output after the described ozone contact reaction device processing, after promoting, lift pump enters biological-activated-carbon reaction device, utilize charcoal absorption effect and the biomembranous Degradation of biological-activated-carbon reaction device to remove organic pollution materials, further reduce COD, NH
3-N and colourity guarantee the stable of water outlet.
The waste water of being discharged by petrochemical wastewater treatment plant second pond before described step 1) is promoted by submersible pump and enters described equalizing tank reaction unit, by described equalizing tank reaction unit the water water yield is regulated, homogeneous water water quality is carried out simultaneously the pH adjustment and is made the water after the sewage equalizing tank is processed input the air supporting reaction unit via sewage pump simultaneously.
After described step 4), increase and be provided with the step of described biological-activated-carbon reaction device being carried out backwash.
The advanced treatment apparatus of difficult degradation petrochemical wastewater includes equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device among the present invention, described equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device sequentially are communicated with via pipeline, simultaneously be provided with the flocculation agent chemicals dosing plant in the water inlet of described air supporting reaction unit, and be provided with water sprayer and ozonizer in the water inlet of described ozone contact reaction device.
Also include through pipeline and be connected with described air supporting reaction unit water inlet, connect simultaneously the lift pump of equalizing tank reaction unit; Be connected with described ozone contact reaction device water inlet through pipeline, simultaneously with intermediate pool and the lift pump of described air supporting reaction unit; Between described biological-activated-carbon reaction device and described ozone contact reaction device, be connected with intermediate pool and lift pump.
Also include the sludge treatment equipment via pipeline is communicated with described equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device respectively and the scum silica frost that can produce described equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device or mud are processed.
Also include the washing unit for biological-activated-carbon reaction device, described washing unit includes Root's blower, clean water basin and backwash water pump.
By the waste water after the advanced treatment process processing of difficult degradation petrochemical wastewater among the present invention the difficult degradation petrochemical wastewater is recycled, satisfy water of productive use and environment protection standard emission request, each device that adopts among the present invention is existing commercially available matured product, but when using separately, can not satisfy the purification requirement of waste water, and after being used in combination, can make waste water reach the requirement that reuses, and cooperate the use of control device, have easy to operate, with low cost advantage.
Description of drawings
Fig. 1 is the structural representation of the advanced treatment apparatus of difficult degradation petrochemical wastewater among the present invention.
Fig. 2 is the schema of the advanced treatment process of difficult degradation petrochemical wastewater among the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment among the present invention is described in further detail.
As shown in Figure 1, the advanced treatment apparatus of the difficult degradation petrochemical wastewater among the present invention includes equalizing tank reaction unit 1, air supporting reaction unit 4, ozone contact reaction device 11 and biological-activated-carbon reaction device 14, wherein:
Air supporting reaction unit 4 includes flocculation agent chemicals dosing plant 3, the slag scraper 6 that is located at the water inlet, is provided with agitator and microbubble generator 5 in air supporting reaction unit 4 interior close water inlets simultaneously.The pipeline that air supporting reaction unit 4 is connected with water-in is to be provided with flocculation agent chemicals dosing plant 3, add flocculation agent through flocculation agent chemicals dosing plant 3, namely enter in the waste water of air supporting reaction unit 4 container front ends and be added with flocculation agent and coagulant aids, agitator and microbubble generator 5 discharge " microbubble " simultaneously, under the acting in conjunction of flocculation agent, coagulant aids suspended substance being floated to above the liquid level, then by slag scraper 6 suspended substance is discharged into sludge sump and further processes.The agitator that the present invention uses and microbubble generator can produce the many microbubbles of quantity, and lifetime is long in water, and scrubbing is effective.Because this air supporting reaction unit is prior art, describes in detail no longer separately at this.
The ozonation and biological activated carbon system device includes: ozone generating-device 9, water sprayer 10, ozone contact reaction device 11, biological-activated-carbon reaction device 14, Root's blower 17, wherein:
The ozone that water sprayer 10 produces ozone generating-device 9 is inhaled in the pipeline by the suction function that water sprayer 10 produces by the lifting of lift pump 8, and ozone and water enter ozone contact reaction device 11 after mixing.The water outlet of ozone contact reaction device 11 is introduced into intermediate pool 12, then is driven in the biological-activated-carbon reaction device 14 through the difficult degradation petrochemical wastewater after the ozonize under the effect of lift pump 13.
Ozone decomposes in water and produces the nascent oxygen atom and have strong electrophilic or protophilia, and forms hydroxyl radical free radical OH, the HO(E0=2.8V with strong oxidation in water) current potential is high, response capacity is strong, speed is fast, can cause chain reaction, and many organism are thoroughly degraded.
Ozonize makes H in the water
+Ion increases, and forms in the more hydrogen bond and electronegativity at activated carbon surface, and negatively charged ion reduces greatly by the resistance of gac hole, has reduced the diffusional resistance when pollution substance is adsorbed, and has improved the adsorptive power of gac.
Contain residual ozone and sufficient oxygen in the ozonated water, make activated carbon column be in the oxygen enrichment state, cause flora in activated carbon surface breeding growth, by effects such as biological adsorption and oxidative degradations, significantly improved gac and removed organic ability, and increased the service life.Biodegradation process can become CO with deliquescent organic substance decomposing
2And H
2The organism of O or non-dissolving forms the benign cycle of adsorption-desorption, has in a disguised form improved loading capacity.Operation facts have proved, utilizes the bio-oxidation characteristic to improvement and the stabilization of water quality, has improved the work-ing life (more than 5 times) of gac, has reduced processing cost.
Utilize said apparatus, the advanced treatment process of difficult degradation petrochemical wastewater includes the following step among the present invention:
1) the second pond water outlet of petrochemical wastewater treatment plant enters the equalizing tank reaction unit, utilizes the equalizing tank reaction unit that sewage is carried out water quality and quantity and regulates;
2) the equalizing tank reaction unit waste water of discharging enters the air supporting reaction unit through lift pump, by the flocculation adsorption, effectively removes the pollution substances such as suspended substance in the water, colloid, part COD, oils;
3) enter intermediate pool by the water after the processing of air supporting reaction unit and enter the ozone contact reaction device by the lift pump lifting, after processing through the ozone contact reaction device, part COD is removed in the sewage, and Biodegradability of Wastewater improves, and removal part colourity;
4) enter intermediate pool by the water after the processing of ozone contact reaction device and enter biological-activated-carbon reaction device by the lift pump lifting, utilize charcoal absorption effect and biomembranous Degradation removal organic pollution materials in the biological activated carbon, further reduce COD, NH
3-N and colourity guarantee the stable of water outlet.
As shown in Figure 2, for the water quality that further guarantees the normal operation of each device and guarantee to export, technological process is as follows more specifically among the present invention:
1, sewage is regulated
From what petrochemical wastewater treatment plant second pond was discharged the difficult degradation petrochemical wastewater is introduced equalizing tank reaction unit 1 through submersible pump, utilize 1 pair of difficult degradation petrochemical wastewater of equalizing tank reaction unit to regulate the water quality of the water yield and homogeneous water, guarantee stability and the continuity of follow-up advanced treatment, wherein the adjusting time of equalizing tank reaction unit is about 0.5-1 hour, COD≤the 120mg/L of equalizing tank water outlet wherein, pH is about 7.
2, air supporting reaction
The waste water of adjusting after processing at equalizing tank reaction unit 1 enters in the pipeline that is connected with air supporting reaction unit 4 by sewage pump 2, be connected with flocculation agent chemicals dosing plant 3 in this pipeline, enter into air supporting reaction unit 4 after flocculation agent, the coagulant aids that dosing pump is sent in the waste water that is promoted by sewage pump 2 and the flocculation agent chemicals dosing plant 3 mixes.In this step owing to having added flocculation agent and coagulant aids, can significantly improve the removal efficient of oil in water emulsion in the waste water, suspended particulates, colloidalmaterial and solubility COD material, the oil removal efficiency and suspended solid clearance reach respectively more than 75% and 70% in the air supporting reaction unit.
Wherein flocculation agent is polymerize aluminum chloride (PAC), and it has higher electric charge and molecular weight, thereby absorption is taken off steady and the bonding bridging action is all stronger, be added in the water after the rapid excellent coagulation effect of performance.
Coagulant aids is polyacrylamide (PAM), is used for adsorbing the suspended particles in the sewage, macromolecular chain is twined mutually crosslinked, forms to build bridge, thereby makes flucculation structure increase chap, is beneficial to the removal of suspended particles.
3, ozone-biological active carbon reaction
The waste water of air supporting reaction unit 4 outputs enters intermediate pool 7, is used for waste water is cushioned, and prevents that excessive waste water from directly entering ozone contact reaction device 11, and the water inlet of ozone contact reaction device 11 is provided with water sprayer 10, is provided with simultaneously ozonizer 9.The ozone that ozone generating-device 9 produces is inhaled in the pipeline that enters ozone contact reaction device 11 by means of the suction function that water sprayer 10 produces, ozone and water enter ozone contact reaction device 11 after mixing, making the water that mixes with ozone improve biochemical after fully reacting with ozone behind the ozone contact reaction device 11 interior stop 30min is the B/C ratio, the water outlet of ozone contact reaction device 11 is introduced into intermediate pool 12, then under the effect of lift pump 13, the difficult degradation petrochemical wastewater is driven in the biological-activated-carbon reaction device 14, adsorb and biological degradation after entering biological-activated-carbon reaction device 14, namely utilize charcoal absorption effect and biomembranous Degradation removal organic pollution materials in the biological activated carbon, further reduce COD, NH
3-N and colourity, guarantee the stable of water outlet, make COD≤30mg/L in the water outlet, can avoid simultaneously the saturated rear inefficacy of gac (gac just needed to change after losing efficacy), but activity recovery after the backwash, greatly reduce system operation cost, water outlet can as the reuse water of petroleum chemical enterprise, be for the first time in the petrochemical industry water treatment.
Carrier in the biological-activated-carbon reaction device 14 is the biofilm carrier filler of a kind of suitable difficult degradation petrochemical wastewater that draws through multiple test, and this carrier filler is specially moisture content≤10%, hardness 〉=90%, potential of hydrogen 〉=7, specific surface area 950m
2/ g, total hole volume 0.80 cm
3/ g, micropore area 0.35 cm
2/ g, apparent density 0.3 g/cm
3
Filler in the ozone contact reaction device 11 is for selecting through repeated test in place ratio, the catalyst filling of a kind of suitable difficult degradation petrochemical wastewater catalytic ozonation of testing out, this carrier is a kind of natural manganese-bearing mineral matter, secondary bonding becomes irregular carrier filler through pulverizing also, particle diameter is 2-4mm, apparent density 1.3 g/cm
3After the aeration slaking, use.
The ozone that enters ozone contact reaction device 11 decomposes generation nascent oxygen atom in water, have strong electrophilic or protophilia, the nascent oxygen atom forms the hydroxyl radical free radical OH with strong oxidation in water, the current potential of Hydroxyl radical HO (E0=2.8V) is high, response capacity is strong, and speed is fast, can cause chain reaction, many organism are thoroughly degraded, and ozone can make H in the water simultaneously
+Ion increases, and forms in the more hydrogen bond and electronegativity at activated carbon surface, and negatively charged ion reduces greatly by the resistance of gac hole, has reduced the diffusional resistance when pollution substance is adsorbed, and has improved the adsorptive power of gac.
Be mixed with and contain residual ozone and sufficient oxygen in the waste water of ozone, make activated carbon column be in the oxygen enrichment state, cause flora in activated carbon surface breeding growth, by effects such as biological adsorption and oxidative degradations, significantly improved gac and removed organic ability, and increased the service life.Biodegradation process can become CO with deliquescent organic substance decomposing
2And H
2The organism of O or non-dissolving forms the benign cycle of adsorption-desorption, has in a disguised form improved loading capacity.Operation facts have proved, utilizes the bio-oxidation characteristic to improvement and the stabilization of water quality, has improved the work-ing life (more than 5 times) of gac, has reduced processing cost.
In above-mentioned technological process, can also be provided with the treatment unit of the scum silica frost that produces for the treatment of air supporting reaction unit 4.Normally move in order to ensure biological-activated-carbon reaction device 14 in addition, also be equipped with for the washing unit that cleans biological-activated-carbon reaction device 14, this washing unit includes Root's blower 17, clean water basin 16 and backwash water pump 15.
In sum, the environment space of the ozone contact reaction of the advanced treatment process of difficult degradation petrochemical wastewater and device employing separated type and biological activated carbon absorption, biochemistry among the present invention, the difficult degradation petrochemical wastewater is recycled, satisfied water of productive use and environment protection standard emission request.
Claims (1)
1. the advanced treatment process of a difficult degradation petrochemical wastewater includes the following step:
1) waste water of petrochemical wastewater treatment plant second pond output enters the equalizing tank reaction unit, utilizes the equalizing tank reaction unit that the waste water of described second pond output is carried out the water quality and quantity adjusting;
2) the described equalizing tank reaction unit waste water of discharging enters the air supporting reaction unit through lift pump, effectively removes suspended substance, colloid, part COD, pollution by oil material in the waste water by the flocculation adsorption;
3) enter intermediate pool by the waste water after the described air supporting reaction unit processing, prevent that excessive waste water from directly entering the ozone contact reaction device, enter the ozone contact reaction device through lift pump lifting and water sprayer again, the negative pressure that described waste water forms by means of water sprayer before entering the ozone contact reaction device sucks ozone, enter the ozone contact reaction device after making ozone and waste water fully mixing, after described ozone contact reaction device is processed, remove part COD and colourity in the waste water, biodegradability improves simultaneously;
4) enter intermediate pool by the waste water output after the described ozone contact reaction device processing, after promoting, lift pump enters biological-activated-carbon reaction device, utilize charcoal absorption effect and the biomembranous Degradation of biological-activated-carbon reaction device to remove organic pollution materials, further reduce COD, NH
3-N and colourity guarantee the stable of water outlet;
Carrier in the described biological-activated-carbon reaction device is a kind of biofilm carrier filler of suitable difficult degradation petrochemical wastewater, and this carrier filler is specially moisture content≤10%, hardness 〉=90%, potential of hydrogen 〉=7, specific surface area 950m
2/ g, total hole volume 0.80 cm
3/ g, micropore area 0.35 cm
2/ g, apparent density 0.3 g/cm
3A kind of natural manganese-bearing mineral matter of filler in the described ozone contact reaction device becomes irregular carrier filler through pulverizing and secondary bonding simultaneously, and particle diameter is 2-4mm, apparent density 1.3 g/cm
3
2, the advanced treatment process of difficult degradation petrochemical wastewater according to claim 1, it is characterized in that, the waste water of being discharged by petrochemical wastewater treatment plant second pond before described step 1) is promoted by submersible pump and enters described equalizing tank reaction unit, by described equalizing tank reaction unit the water water yield is regulated, homogeneous water water quality is carried out simultaneously the pH adjustment and is made the water after the sewage equalizing tank is processed input the air supporting reaction unit via sewage pump simultaneously.
3, the advanced treatment process of difficult degradation petrochemical wastewater according to claim 1 is characterized in that, increases to be provided with the step of described biological-activated-carbon reaction device being carried out backwash after described step 4).
4, a kind of advanced treatment apparatus of difficult degradation petrochemical wastewater, include equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device, it is characterized in that: described equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device sequentially are communicated with via pipeline, simultaneously be provided with the flocculation agent chemicals dosing plant in the water inlet of described air supporting reaction unit, and be provided with water sprayer and ozonizer in the water inlet of described ozone contact reaction device; Carrier in the described biological-activated-carbon reaction device is a kind of biofilm carrier filler of suitable difficult degradation petrochemical wastewater, and this carrier filler is specially moisture content≤10%, hardness 〉=90%, potential of hydrogen 〉=7, specific surface area 950m
2/ g, total hole volume 0.80 cm
3/ g, micropore area 0.35 cm
2/ g, apparent density 0.3 g/cm
3A kind of natural manganese-bearing mineral matter of filler in the described ozone contact reaction device becomes irregular carrier filler through pulverizing and secondary bonding simultaneously, and particle diameter is 2-4mm, apparent density 1.3 g/cm
3
5, the advanced treatment apparatus of the difficult degradation petrochemical wastewater described in according to claim 4 is characterized in that, also includes through pipeline to be connected with described air supporting reaction unit water inlet, connects simultaneously the lift pump of equalizing tank reaction unit; Be connected with described ozone contact reaction device water inlet through pipeline, simultaneously with intermediate pool and the lift pump of described air supporting reaction unit; Between described biological-activated-carbon reaction device and described ozone contact reaction device, be connected with intermediate pool and lift pump.
6, the advanced treatment apparatus of the difficult degradation petrochemical wastewater described in according to claim 4, it is characterized in that, also include the sludge treatment equipment via pipeline is communicated with described equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device respectively and the scum silica frost that can produce described equalizing tank reaction unit, air supporting reaction unit, ozone contact reaction device, biological-activated-carbon reaction device or mud are processed.
7, the advanced treatment apparatus of the difficult degradation petrochemical wastewater described in according to claim 4 is characterized in that, also include the washing unit for biological-activated-carbon reaction device, described washing unit includes Root's blower, clean water basin and backwash water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568753 CN102010105B (en) | 2010-12-01 | 2010-12-01 | Advanced treatment process for non-degradable petrochemical waste water and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568753 CN102010105B (en) | 2010-12-01 | 2010-12-01 | Advanced treatment process for non-degradable petrochemical waste water and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102010105A CN102010105A (en) | 2011-04-13 |
| CN102010105B true CN102010105B (en) | 2013-05-01 |
Family
ID=43840464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010568753 Active CN102010105B (en) | 2010-12-01 | 2010-12-01 | Advanced treatment process for non-degradable petrochemical waste water and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102010105B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528913B (en) * | 2015-01-09 | 2017-04-12 | 中国石油大学(北京) | Method and device for mineralizing low-concentration persistent organic pollutants in oil refining sewage |
| CN106045136A (en) * | 2016-08-11 | 2016-10-26 | 郭志强 | Modifying and air floating apparatus used for sewage treatment |
| CN106542677A (en) * | 2017-02-14 | 2017-03-29 | 中冶华天南京工程技术有限公司 | A kind of ternary composite driving oil field produced water treatment technique |
| CN110156273A (en) * | 2019-06-12 | 2019-08-23 | 李俊 | The reusable petrochemical industry wastewater treatment method of resource and its use device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229936A (en) * | 2005-10-27 | 2008-07-30 | 韩春来 | Method and equipment for reclaiming refining and chemical wastewater |
-
2010
- 2010-12-01 CN CN 201010568753 patent/CN102010105B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229936A (en) * | 2005-10-27 | 2008-07-30 | 韩春来 | Method and equipment for reclaiming refining and chemical wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 郭志红等.炼油污水深度处理回用工艺实验研究.《油气田环境保护》.2006,第16卷(第4期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102010105A (en) | 2011-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7914677B2 (en) | Water treatment apparatus and water treatment method | |
| JP2007509740A (en) | Apparatus and method for purifying aqueous effluents by oxidation and membrane filtration | |
| CN1215997C (en) | Water treating technology by reinforced membrane biological reactor | |
| CN102010105B (en) | Advanced treatment process for non-degradable petrochemical waste water and device | |
| KR20180101572A (en) | Wastewater treatment process and facility | |
| CN103951107A (en) | Device and method for treating coking wastewater | |
| CN107585970A (en) | The technique of hardly degraded organic substance advanced treating in a kind of Industrial reverse osmosis concentrated water | |
| CN110981116A (en) | Treatment process of lincomycin antibiotic production wastewater | |
| KR101770792B1 (en) | Sewage and wastewater purification system | |
| CN1931750B (en) | Petrochemical effluent treating and reusing process | |
| JP5840004B2 (en) | Organic wastewater purification method and apparatus | |
| CN105060412A (en) | Apparatus for adsorption-electrolysis-aeration synergistic integrated treatment of eutrophic water body | |
| CN113429045A (en) | Industrial wastewater advanced treatment and cyclic utilization method | |
| CN110921980B (en) | Electrochemical enhanced ozone-biological activated carbon water treatment equipment and method for treating water by using same | |
| CN109626494B (en) | Ultraviolet strong oxygen advanced water treatment method and device | |
| CN203999226U (en) | A kind of printed-wiring board (PWB) Cleaning Wastewater integrated synthesis handler | |
| JP2002192181A (en) | High-degree treatment method for wastewater by addition of powdery activated carbon | |
| JP2002192184A (en) | Powdery activated carbon-adding membrane separation activated sludge method | |
| CN105130131A (en) | Treatment system and method of landfill refuse leachate | |
| CN101475281B (en) | Advanced treatment process for pulping papermaking sewerage and apparatus thereof | |
| CN212864409U (en) | Water denitrification adsorption dephosphorization deep purification system | |
| KR20230125059A (en) | Method for water treatment by adsorption on activated carbon combined with addition of ozone and equipment for carrying out the method | |
| CN108911242B (en) | Super nano bubble circulating ozone sewage treatment method and device | |
| CN113582463A (en) | Direct-discharge treatment method for high-salinity fracturing flowback fluid | |
| CN103420539A (en) | Integrated sewage treatment unit and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20110520 Address after: 730060, 10, Yumen street, Lanzhou, Lanzhou, Gansu, Gansu Applicant after: Lanzhou Petrochemical Company, CNPC Co-applicant after: Jilin HUEYA Environmental Engineering Co., Ltd. Address before: 730060, 10, Yumen street, Lanzhou, Lanzhou, Gansu, Gansu Applicant before: Lanzhou Petrochemical Company, CNPC Co-applicant before: Beijing HUEYA Energy Technology Co., Ltd. Co-applicant before: Jilin HUEYA Environmental Engineering Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |