CN203545843U - Composite type oil removing equipment - Google Patents
Composite type oil removing equipment Download PDFInfo
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- CN203545843U CN203545843U CN201320673628.9U CN201320673628U CN203545843U CN 203545843 U CN203545843 U CN 203545843U CN 201320673628 U CN201320673628 U CN 201320673628U CN 203545843 U CN203545843 U CN 203545843U
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- Prior art keywords
- electric
- flocculator
- water
- pipe
- air
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- Expired - Fee Related
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- 239000002131 composite material Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000004519 grease Substances 0.000 claims description 26
- 238000005188 flotation Methods 0.000 claims description 19
- 238000007667 floating Methods 0.000 claims description 18
- 239000010802 sludge Substances 0.000 claims description 18
- 239000002699 waste material Substances 0.000 claims description 16
- 238000000151 deposition Methods 0.000 claims description 9
- 230000005764 inhibitory process Effects 0.000 claims description 9
- 239000002516 radical scavenger Substances 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 238000001914 filtration Methods 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000000638 solvent extraction Methods 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000005276 aerator Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses composite type oil removing equipment which comprises an electric oil removing tank and a biofilter part, wherein the electric oil removing tank internally comprises an electric flocculator, an electric air-flotator, a filter, an electric scale inhibitor and an electric sterilizer, wherein a water outlet tube is arranged on the shell of the electric oil removing tank above a mud collecting bucket; the water outlet tube penetrates by virtue of the shell of the electric oil removing tank and is connected with a pump; a water outlet tube of the pump is led to the biofilter; the biofilter comprises a tank body and four partitioning plates which are vertically arranged inside the tank body; the biofilter is sequentially divided into an anaerobic zone, an anoxic zone, a micro aeration zone, a high-flow aeration zone and a filtering sedimentation zone by virtue of the partitioning plates. The composite type oil removing equipment has the advantages of good effects in nitrogen and phosphorus removal, high in treatment efficiency, good water outlet quality, low cost, small mud generation, short and simple process, small occupied space, convenience in management and the like.
Description
Technical field
The utility model belongs to the technical field of sewage disposal, is specifically related to a kind of combined type waste-oil scavenger.
Background technology
Daily life waste water, has organism and the larger molecular organics matter such as suspension content is high, protein, grease is many, ammonia nitrogen and the feature such as phosphorus concentration is high, water temperature is low, water quality and quantity fluctuation is large, biodegradation rate is slow such as food and drink waste water.At present, the treatment process of employing mainly contains coagulation (or air supporting)+bio-contact oxidation, A-O technique etc., and these works exist the problems such as processing cost is high, effluent quality is poor, water outlet nitrogen phosphorus difficulty is up to standard, sludge quantity is large.For adapting to the emission standard of increasingly stringent, high oil-containing wastewater waste water must be administered by good treatment technology.
The high technological process containing oil treatment equipment is generally at present: dosing → sedimentation → filtration; Or dosing → air supporting → filtration.Above-mentioned technique has feature easy and simple to handle, reliability is strong, has also obtained better effects from practical application.But its weak point is: the water after a large amount of dosings are processed is eutrophication, the processing water of this eutrophication is recycled into the nutrition that becomes underground various bacterium and algae behind stratum, not only make its Fast-propagation, can produce a large amount of meta-bolitess simultaneously, and impel it to morph.
Utility model content
The problem existing for above-mentioned prior art, the utility model provides a kind of combined type waste-oil scavenger, comprise electric grease removal tank and biological filter part, it is characterized in that, described electric grease removal tank comprises housing, described hull outside wall top arranges inlet flume, and grid is set in inlet flume, on inlet flume sidewall, water inlet pipe is set, in housing, comprise following assembly: by electrolytic reaction, can make oily(waste)water form the electric flocculator of electroactive flocculation agent, this electricity flocculator is connected with described water inlet pipe, by electrolytic reaction, make oily(waste)water on negative electrode and anode, separate out respectively hydrogen and oxygen, the electro-flotation device with it as the oily flco in carrier adhesion water and suspended solids floating, this electro-flotation device is connected with described electric flocculator pipeline, the strainer of the suspended substance in oily(waste)water or colloid elimination just, this strainer is connected with described electro-flotation organ pipe road, can stop oily(waste)water under electric field action in, supersaturation or the crystal of newly separating out are bonded to dirty electric scale inhibitor on wall, and this electric scale inhibitor is connected with described electrofilter pipeline, the electric sterilizer that microorganism killing in oily(waste)water can be removed under the effect of electric field, in housing, also comprise dividing plate, baffle plate, described divider upright is arranged on the position of close inlet flume in described electric grease removal tank, at the bottom of the pond of dividing plate and electric grease removal tank, left water gap, described baffle plate is vertically set on the interior opposite side away from inlet flume of described electric grease removal tank, described baffle plate is parallel with dividing plate, electricity flocculator, electro-flotation device, strainer, electric scale inhibitor and electric sterilizer are between described baffle plate and dividing plate, baffle plate lower end is connected with at the bottom of electric grease removal tank pond, sludge hopper is set at the bottom of pond, on the electric grease removal tank housing of sludge hopper top, set out water pipe, rising pipe passes electric grease removal tank housing and is connected with outside water pump, pumping line causes described biological filter,
Described biological filter comprises vertically disposed 4 dividing plates in the body of Ti Ji pond, pond, and dividing plate is divided into anaerobic zone, oxygen-starved area, limited aeration district, high flow capacity aeration zone and filtering-depositing district successively by biochemistry filtered pond; In filtering-depositing zone center, vapor pipe is set, vapor pipe upper end open exceeds Chi Ding, and vapor pipe lower end is bell mouth shape; Bottom, filtering-depositing district arranges shore pipe, has a mud return line to be connected with shore pipe, and is connected with outside return sludge pump, and the outlet pipe of sludge reflux pump causes the anaerobic zone of described biological filter; The high flow capacity aeration zone of biological filter arranges mixed-liquor return pipe, and is connected with outside mixed-liquor return pump, and mixed-liquor return pump outlet pipe causes the oxygen-starved area of described biological filter.
Described electric scale inhibitor comprises antisludging equipment housing, its inner scale inhibition chamber that forms; Antisludging equipment housing two ends are respectively equipped with antisludging equipment water-in and the antisludging equipment water outlet being communicated with scale inhibition chamber, the indoor positive and negative pole plate of antisludging equipment that arranges of scale inhibition.
Described electric flocculator comprises flocculator housing, its inner flocculator settling tank that forms electrolyzer and be positioned at electrolyzer bottom, electrolyzer lower sides is provided with flocculator water-in, electrolyzer upper portion side wall is provided with flocculator water outlet, flocculator inner walls is provided with flocculator isolator, the positive and negative pole plate of flocculator is set in electrolyzer, and flocculator settling tank bottom is provided with flocculator sewage draining exit.
Described electro-flotation device comprises the Air-float separator housing of upper opening, its inner Air-float separator settling tank that forms gas-floating chamber and be positioned at gas-floating chamber bottom, gas-floating chamber lower sides is provided with Air-float separator water-in, gas-floating chamber upper portion side wall is provided with Air-float separator water outlet, Air-float separator inner walls is provided with Air-float separator isolator, the positive and negative pole plate of Air-float separator is set in gas-floating chamber, and Air-float separator settling tank bottom is provided with Air-float separator sewage draining exit.
The upper opening place of described electro-flotation device is provided with oil-scraping device.
The present invention compared with prior art has the following advantages and positively effect:
The present invention combines electrochemistry, biofiltration, the multiple treatment technology of A/A/O technique, and biomembrance process is combined with activated sludge process, precipitation is combined with filtering technique, thereby tool has the following advantages:
1, processing efficiency is high: in biological filter, the multiple treatment technology of part A/A/O technique combines, biomembrance process is combined with activated sludge process, precipitation is combined with filtering technique, in the body of same pond, complete the effects such as chemical coagulation to sewage, bio-oxidation, biofloculation, precipitation, filtration, absorption, therefore, processing efficiency is high.
2, effluent quality is good: the result of above-mentioned multiple action has improved effluent quality greatly, and water outlet COD, ammonia nitrogen, total phosphorus, SS are less than respectively 20mg/L, 5mg/L, 1mg/L, 5mg/L.
3, non-secondary pollution: because the utility model is by physics and biological method, oily(waste)water to be processed, do not add any medicine, the water after processing can not damage ecotope.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, water inlet pipe; 2, grid; 3, oil trap; 4, dividing plate; 5, baffle plate; 6, inlet flume; 7, housing; 10, sludge hopper; 11, electric grease removal tank rising pipe; 12, water pump; 13, whipping device; 14, anoxic air valve; 16, gas blower; 17, micro-aeration valve; 18, high flow capacity aeration air valve; 19, precipitation dividing plate; 20, vapor pipe; 21, anoxic filler; 22, anoxic tracheae; 23, micro-aerating filling; 24, micro-aeration tracheae; 25, high flow capacity aerating filling; 26, high flow capacity aeration tracheae; 27, water leg; 28, water pipe; 29, effluent trough; 30, rising pipe; 31, filtrate; 32, filtrate back up pad; 33, perforated pipe aerating regulation device; 34, micro-hole aerator; 35, aerator; 36, pond, biological filter body; 43, mixed-liquor return pump; 44, mixed-liquor return pipe; 45, shore pipe; 46, mud valve; 47, sludge reflux valve; 48, mud return line; 49, sludge reflux pump; 101, electric flocculator; 102, electro-flotation device; 103, strainer; 104, electric scale inhibitor; 105, electric sterilizer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, combined type waste-oil scavenger, comprises electric grease removal tank and biological filter part, it is characterized in that, described electric grease removal tank comprises housing 7, and described housing 7 outer side wall tops arrange inlet flume 6, and grid 2 is set in inlet flume, and water inlet pipe 1 is set on inlet flume sidewall, in housing 7, comprise following assembly: by electrolytic reaction, can make oily(waste)water form the electric flocculator 101 of electroactive flocculation agent, this electricity flocculator 101 is connected with described water inlet pipe 1, by electrolytic reaction, make oily(waste)water on negative electrode and anode, separate out respectively hydrogen and oxygen, the electro-flotation device 102 with it as the oily flco in carrier adhesion water and suspended solids floating, this electro-flotation device 102 is connected with described electric flocculator 101 pipelines, the strainer 103 of the suspended substance in oily(waste)water or colloid elimination just, this strainer 103 is connected with described electro-flotation device 102 pipelines, can stop oily(waste)water under electric field action in, supersaturation or the crystal of newly separating out are bonded to dirty resistance 104 on wall, and this electric scale inhibitor 104 is connected with described electrofilter 103 pipelines, the electric sterilizer 105 that microorganism killing in oily(waste)water can be removed under the effect of electric field, in housing 7, also comprise dividing plate 4, baffle plate 5, described dividing plate 4 is vertically set on the position of close inlet flume 6 in described electric grease removal tank, at the bottom of the pond of dividing plate 4 and electric grease removal tank, left water gap, described baffle plate 5 is vertically set on the interior opposite side away from inlet flume 6 of described electric grease removal tank, described baffle plate 5 is parallel with dividing plate 4, electricity flocculator, electro-flotation device, electrofilter, electric scale inhibitor and electric sterilizer are between described baffle plate 5 and dividing plate 4, baffle plate lower end is connected with at the bottom of electric grease removal tank pond, sludge hopper 10 is set at the bottom of pond, on the electric grease removal tank housing 7 of sludge hopper 10 tops, set out water pipe 11, rising pipe 11 passes electric grease removal tank housing 7 and is connected with outside water pump 12, pumping line causes described biological filter,
Biological filter comprises vertically disposed 4 dividing plates in the body of Ti Ji pond, pond, and dividing plate is divided into anaerobic zone, oxygen-starved area, limited aeration district, high flow capacity aeration zone and filtering-depositing district successively by biochemistry filtered pond; In filtering-depositing zone center, vapor pipe 20 is set, vapor pipe 20 upper end open exceed Chi Ding, and vapor pipe lower end is bell mouth shape; Bottom, filtering-depositing district arranges shore pipe 45, has a mud return line 48 to be connected with shore pipe 45, and is connected with outside return sludge pump 49, and the outlet pipe of sludge reflux pump 49 causes the anaerobic zone of described biological filter; The high flow capacity aeration zone of biological filter arranges mixed-liquor return pipe 44, and is connected with outside mixed-liquor return pump 43, and the outlet pipe of mixed-liquor return pump 43 causes the oxygen-starved area of described biological filter.
Described electric scale inhibitor 104 comprises antisludging equipment housing, its inner scale inhibition chamber that forms; Antisludging equipment housing two ends are respectively equipped with antisludging equipment water-in and the antisludging equipment water outlet being communicated with scale inhibition chamber, the indoor positive and negative pole plate of antisludging equipment that arranges of scale inhibition.
Described electric flocculator 101 comprises flocculator housing, its inner flocculator settling tank that forms electrolyzer and be positioned at electrolyzer bottom, electrolyzer lower sides is provided with flocculator water-in, electrolyzer upper portion side wall is provided with flocculator water outlet, flocculator inner walls is provided with flocculator isolator, the positive and negative pole plate of flocculator is set in electrolyzer, and flocculator settling tank bottom is provided with flocculator sewage draining exit.
Described electro-flotation device 102 comprises the Air-float separator housing of upper opening, its inner Air-float separator settling tank that forms gas-floating chamber and be positioned at gas-floating chamber bottom, gas-floating chamber lower sides is provided with Air-float separator water-in, gas-floating chamber upper portion side wall is provided with Air-float separator water outlet, Air-float separator inner walls is provided with Air-float separator isolator, the positive and negative pole plate of Air-float separator is set in gas-floating chamber, and Air-float separator settling tank bottom is provided with Air-float separator sewage draining exit.
The upper opening place of described electro-flotation device 103 is provided with oil-scraping device.
Claims (5)
1. a combined type waste-oil scavenger, comprises electric grease removal tank and biological filter part, it is characterized in that, described electric grease removal tank comprises housing, and described hull outside wall top arranges inlet flume, and grid is set in inlet flume, on inlet flume sidewall, water inlet pipe is set, in housing, comprise following assembly: by electrolytic reaction, can make oily(waste)water form the electric flocculator of electroactive flocculation agent, this electricity flocculator is connected with described water inlet pipe, by electrolytic reaction, make oily(waste)water on negative electrode and anode, separate out respectively hydrogen and oxygen, the electro-flotation device with it as the oily flco in carrier adhesion water and suspended solids floating, this electro-flotation device is connected with described electric flocculator pipeline, the strainer of the suspended substance in oily(waste)water or colloid elimination just, this strainer is connected with described electro-flotation organ pipe road, can stop oily(waste)water under electric field action in, supersaturation or the crystal of newly separating out are bonded to dirty electric scale inhibitor on wall, and this electric scale inhibitor is connected with described strainer pipeline, the electric sterilizer that microorganism killing in oily(waste)water can be removed under the effect of electric field, in housing, also comprise dividing plate, baffle plate, described divider upright is arranged on the position of close inlet flume in described electric grease removal tank, at the bottom of the pond of dividing plate and electric grease removal tank, left water gap, described baffle plate is vertically set on the interior opposite side away from inlet flume of described electric grease removal tank, described baffle plate is parallel with dividing plate, electricity flocculator, electro-flotation device, strainer, electric scale inhibitor and electric sterilizer are between described baffle plate and dividing plate, baffle plate lower end is connected with at the bottom of electric grease removal tank pond, sludge hopper is set at the bottom of pond, on the electric grease removal tank housing of sludge hopper top, set out water pipe, rising pipe passes electric grease removal tank housing and is connected with outside water pump, pumping line causes described biological filter,
Described biological filter comprises vertically disposed 4 dividing plates in the body of Ti Ji pond, pond, and dividing plate is divided into anaerobic zone, oxygen-starved area, limited aeration district, high flow capacity aeration zone and filtering-depositing district successively by biochemistry filtered pond; In filtering-depositing zone center, vapor pipe is set, vapor pipe upper end open exceeds Chi Ding, and vapor pipe lower end is bell mouth shape; Bottom, filtering-depositing district arranges shore pipe, has a mud return line to be connected with shore pipe, and is connected with outside return sludge pump, and the outlet pipe of sludge reflux pump causes the anaerobic zone of described biological filter; The high flow capacity aeration zone of biological filter arranges mixed-liquor return pipe, and is connected with outside mixed-liquor return pump, and mixed-liquor return pump outlet pipe causes the oxygen-starved area of described biological filter.
2. combined type waste-oil scavenger as claimed in claim 1, is characterized in that: described electric scale inhibitor comprises antisludging equipment housing, its inner scale inhibition chamber that forms; Antisludging equipment housing two ends are respectively equipped with antisludging equipment water-in and the antisludging equipment water outlet being communicated with scale inhibition chamber, the indoor positive and negative pole plate of antisludging equipment that arranges of scale inhibition.
3. combined type waste-oil scavenger as claimed in claim 1, it is characterized in that: described electric flocculator comprises flocculator housing, its inner flocculator settling tank that forms electrolyzer and be positioned at electrolyzer bottom, electrolyzer lower sides is provided with flocculator water-in, electrolyzer upper portion side wall is provided with flocculator water outlet, flocculator inner walls is provided with flocculator isolator, and the positive and negative pole plate of flocculator is set in electrolyzer, and flocculator settling tank bottom is provided with flocculator sewage draining exit.
4. combined type waste-oil scavenger as claimed in claim 1, it is characterized in that: described electro-flotation device comprises the Air-float separator housing of upper opening, its inner Air-float separator settling tank that forms gas-floating chamber and be positioned at gas-floating chamber bottom, gas-floating chamber lower sides is provided with Air-float separator water-in, gas-floating chamber upper portion side wall is provided with Air-float separator water outlet, Air-float separator inner walls is provided with Air-float separator isolator, and the positive and negative pole plate of Air-float separator is set in gas-floating chamber, and Air-float separator settling tank bottom is provided with Air-float separator sewage draining exit.
5. combined type waste-oil scavenger equipment as claimed in claim 1, is characterized in that: the upper opening place of described electro-flotation device is provided with oil-scraping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673628.9U CN203545843U (en) | 2013-10-30 | 2013-10-30 | Composite type oil removing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673628.9U CN203545843U (en) | 2013-10-30 | 2013-10-30 | Composite type oil removing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545843U true CN203545843U (en) | 2014-04-16 |
Family
ID=50463989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673628.9U Expired - Fee Related CN203545843U (en) | 2013-10-30 | 2013-10-30 | Composite type oil removing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865835A (en) * | 2015-12-10 | 2017-06-20 | 中国石油天然气股份有限公司 | Treatment method and device for shale gas fracturing flowback waste liquid |
| US20220009811A1 (en) * | 2018-11-13 | 2022-01-13 | Shanghai Huachang Environmental Protection Co., Ltd | Oily sewage pretreatment method and device without air floatation |
-
2013
- 2013-10-30 CN CN201320673628.9U patent/CN203545843U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865835A (en) * | 2015-12-10 | 2017-06-20 | 中国石油天然气股份有限公司 | Treatment method and device for shale gas fracturing flowback waste liquid |
| US20220009811A1 (en) * | 2018-11-13 | 2022-01-13 | Shanghai Huachang Environmental Protection Co., Ltd | Oily sewage pretreatment method and device without air floatation |
| US12017939B2 (en) * | 2018-11-13 | 2024-06-25 | Shanghai Huachang Environmental Protection Co., Ltd. | Oily sewage pretreatment method and device without air floatation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: GUO QIANG Effective date: 20150824 Owner name: CAO YINLIANG Free format text: FORMER OWNER: CHEN YAN Effective date: 20150824 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150824 Address after: 313100 Zhejiang city of Huzhou province Changxing County County West Street in front of Huadu District three yuan Mizuki wind 12 room 1101 Patentee after: Cao Yinliang Address before: 100075, Beijing, Fengtai District Nanyuan Road Nursery East 8 floor, room 1801 Patentee before: Chen Yan Patentee before: Guo Qiang |
|
| DD01 | Delivery of document by public notice |
Addressee: Guo Qiang Document name: Notification of Passing Examination on Formalities |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20171030 |