CN104193055A - Reclaimed water reusing device integrating ultrafiltration membrane filtration and photocatalytic reaction - Google Patents
Reclaimed water reusing device integrating ultrafiltration membrane filtration and photocatalytic reaction Download PDFInfo
- Publication number
- CN104193055A CN104193055A CN201410478804.2A CN201410478804A CN104193055A CN 104193055 A CN104193055 A CN 104193055A CN 201410478804 A CN201410478804 A CN 201410478804A CN 104193055 A CN104193055 A CN 104193055A
- Authority
- CN
- China
- Prior art keywords
- water
- ultra
- light
- filtration membrane
- catalysed
- 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
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
A reclaimed water reusing device integrating ultrafiltration membrane filtration and photocatalytic reaction mainly comprises an ultrafiltration membrane filtration box and a photocatalytic reaction box, wherein a water inlet of the ultrafiltration membrane filtration box is connected with a water inlet pump; a perforated aeration pipe is arranged at the bottom of the ultrafiltration membrane filtration box; a water outlet of the ultrafiltration membrane reaction box is connected with a suction filtration pump through a water-pumping pipe; the suction filtration pump is connected with a water-filtering spray head of the photocatalytic reaction box through a water-filtering pipe; a water tank is arranged at the bottom of the photocatalytic reaction box; the bottom of the water tank is connected with a water-filtering and circulating spray head of the photocatalytic reaction box through a water-filtering and circulating pump and a water-filtering and circulating pipe; an ultraviolet lamp and an adsorbent are arranged inside the photocatalytic reaction box and below the water-filtering and circulating spray head; the outer wall of a lamp tube of the ultraviolet lamp is coated with a photocatalyt coating. The reclaimed water reusing device takes secondary outlet water or water meeting the same quality requirement as a water source of a sewage treatment plant, and reuses the water through ultrafiltration membrane filtration in a pre-processing stage and photocatalysis in a post-processing stage.
Description
Technical field
The present invention relates to a kind of sewage disposal device, the water that specifically utilizes the secondary effluent of sewage work or reach similar water quality requirement is as water source, the device of reuse after ultra-filtration membrane associating photocatalysis technology is processed.
Background technology
Social development and urbanization cause the water yield and water quality type lack of water to become the matter of utmost importance that many big cities, the world today face.China is one of poor-water state in the world, and water resource of per capita is little, spatial and temporal distributions inequality, and new water source leaved for development is distant far from central water supply point, and one-time investment is costly, and water supply capacity promotes difficulty.Middle water be the gray water (containing ight soil and kitchen drainage) that people use in life with in producing and dirt (giving up) water of living through afflux manipulation of regeneration, as floor cleaning, water flowers, carwash, air-conditioning are cooling, toilet flushing, fire-fighting etc. directly do not contact with human body water.
Conventional middle water recycling processing technique mainly comprises biological process, physico-chemical process and membrane separation process at present, wherein:
Biological process is to utilize microbiological oxidation in water to decompose organic method in sewage, but technical process complexity, treatment cycle is longer.
Physico-chemical process is the method that is integrated as basic mode with coagulating sedimentation technology and charcoal absorption, but working cost is higher.
Membrane separation process generally adopts ultrafiltration (micro-filtration) or reverse osmosis membrane processing, and its advantage is that removal efficiency is very high, and floor space is few, but total investment expenses are high, and the low grade of operational efficiency all cannot effectively meet the high efficiency demand of current reused water processing technique.
Summary of the invention
The object of this invention is to provide a kind of ultra-filtration membrane and combine light-catalysed reclaimed water reuse device, with the sludge quantity that reduces to produce in water treatment, and improve the efficiency of reclaimed water reuse by Photocatalytic Oxidation.
For achieving the above object, ultra-filtration membrane provided by the invention is combined light-catalysed reclaimed water reuse device, mainly formed by ultrafiltration membrance filter case and light-catalyzed reaction case, wherein:
The water-in of ultrafiltration membrance filter case connects an intake pump;
The bottom of ultrafiltration membrance filter case is provided with boring aeration pipe, and this boring aeration pipe connects aeration pump;
The water outlet of ultra-filtration membrane reaction box connects suction filter pump by drinking-water pipe, and suction filter pump connects the drainage spray header of light-catalyzed reaction case by filter pipe;
The bottom of light-catalyzed reaction case is water tank, and the bottom of water tank is connected the drainage circulated sprinkling head of light-catalyzed reaction case with drainage circulation tube by drainage recycle pump;
The below that is positioned at drainage circulated sprinkling head in light-catalyzed reaction case is provided with ultraviolet lamp and sorbent material;
The fluorescent tube of ultraviolet lamp is placed in silica tube, and silica tube outer wall scribbles photocatalytic coating.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, in ultrafiltration membrance filter case, is provided with hyperfiltration membrane assembly, and hyperfiltration membrane assembly is by aperture 0.1～0.2 μ m, and the polypropylene of Fibre diameter 430～480 μ m forms.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, is provided with multiple hyperfiltration membrane assemblies in ultrafiltration membrance filter case.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, and the casing top of ultra-filtration membrane reaction box is provided with water-level probe to keep the water yield in ultra-filtration membrane reaction box.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, and light-catalyzed reaction case forms by multiple photocatalytic reaction units are overlapping, and drainage spray header is placed in the photocatalytic reaction unit of the superiors, and drainage circulated sprinkling head is placed in each photocatalytic reaction unit.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, and the photocatalytic coating of silica tube outer wall is mesoporous titanium dioxide film.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, and the ultraviolet transmittance of silica tube is 85～90%.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, and sorbent material is gac and the natural zeolite mixture of 2:1 by volume.
Described ultra-filtration membrane is combined in light-catalysed reclaimed water reuse device, and water tank is provided with water outlet, automatically overflows reuse water when water tank carries when full by water outlet.
Compared with prior art, technical process of the present invention is simple, and sludge creation amount is considerably less, has avoided the secondary pollution problem causing because sludge disposal is improper.
Brief description of the drawings
Fig. 1 is the structural representation that ultra-filtration membrane of the present invention is combined light-catalysed reclaimed water reuse device.Nomenclature in accompanying drawing:
1 intake pump, 2 aeration pumps, 3 boring aeration pipes, 4 suction filter pump, 5 hyperfiltration membrane assemblies, 6 drinking-water pipes, 7 filter pipes, 8 water inlet pipes, 9 ultra-filtration membrane reaction boxs, 10 water-level probes, 11 light-catalyzed reaction casees, 12 drainage spray headers, 13 drainage circulated sprinkling heads, 14 ultraviolet lamps, 15 drainage circulation tubes, 16 sorbent materials, 17 water outlets, 18 water tanks, 19 drainage recycle pumps.
In figure, arrow direction is water (flow) direction.
Embodiment
The present invention has overcome prior art mesophytization processing technological flow complexity, long processing period, management maintenance inconvenience, operational efficiency is low, gross investment is larger, can not effectively meet the deficiency of current reused water processing technique, provides a kind of removable, modularization, does not produce the reclaimed water reuse device of secondary pollution.
The present invention solves its technical problem and is achieved through the following technical solutions: the secondary effluent of sewage work or reach being pumped to the ultra-filtration membrane reaction box of pretreatment stage and filtered reaction by intake pump of similar water quality standard, aeration pump has been installed in case bottom.After ultra-filtration membrane is all immersed in reaction box, in the light-catalyzed reaction case of post-processing stages, carry out photochemical catalytic oxidation and absorption reaction by suction filter pump suction filtration at intermittence and by even drainage sprinkling.
It is good that the present invention has treatment effect, stable, full automatic control, and the features such as convenient operation and management, have again sludge quantity few, do not produce secondary pollution, and automatization regulates the advantage of the reclaimed water reuse water yield, can reach the object of energy-saving and emission-reduction.
Hydraulic detention time of the present invention is shorter, greatly shortens the cycle of operation, has improved working efficiency.
Below with reference to the drawings and specific embodiments, the present invention is described in further details.
As shown in Figure 1, ultra-filtration membrane provided by the invention is combined light-catalysed reclaimed water reuse device, is made up of ultrafiltration membrance filter case 9 and light-catalyzed reaction case 11 two portions.The water-in of ultrafiltration membrance filter case 9 connects an intake pump 1.The secondary effluent of water treatment plant or the water that reaches similar water quality standard are pumped to by water inlet pipe 8 in the ultra-filtration membrane reaction box 9 of pretreatment stage via intake pump 1, are removed the suspended matter that is greater than 0.1～0.2 μ m in water by ultrafiltration membrance filter case 9.The casing top of ultra-filtration membrane reaction box 9 is in order to prevent the too high or too low water-level probe 10 that is provided with of water level, to keep the water yield of constant scope in case.
In ultrafiltration membrance filter case 9, be provided with hyperfiltration membrane assembly 5, hyperfiltration membrane assembly 5 is by aperture 0.1～0.2 μ m, and the polypropylene of Fibre diameter 430～480 μ m forms.Ultrafiltration membrance filter case 9 of the present invention can form a unit by multiple hyperfiltration membrane assemblies 5, and a shelf of multiple unit composition is installed several shelfs according to processing the water yield day.
The bottom of ultra-filtration membrane reaction box 9 is provided with the boring aeration pipe 3 being connected with aeration pump 2, so that ultra-filtration membrane reaction box 9 is carried out to intermittent aeration, both can shake off ultra-filtration membrane outer wall suspended matter for reducing ultra-filtration membrane burden, can also evenly mix the water quality in ultra-filtration membrane reaction box 9.
After hyperfiltration membrane assembly 5 in ultra-filtration membrane reaction box 9 is all submerged, suction filter pump 4 starts automatically to carry out suction filtration by drinking-water pipe 6 and filter pipe 7, the beginning of suction filtration and stop automatically being regulated by Controlling System, intermittently suction filtration drainage is transferred to the light-catalyzed reaction case 11 of post-processing stages, is adsorbed or/and remove the dissolubility pollutant such as organic pollutant and the bacterium matter that is less than 0.1～0.2 μ m by light-catalyzed reaction case 11.
Light-catalyzed reaction case 11 forms by multiple photocatalytic reaction units are overlapping, drainage spray header 12 is placed in the photocatalytic reaction unit of the superiors, in each photocatalytic reaction unit, be provided with drainage circulated sprinkling head 13, the below that is positioned at drainage circulated sprinkling head 13 is provided with ultraviolet lamp 14 and sorbent material 16.The tube outer wall of ultraviolet lamp 14 scribbles mesoporous titanium dioxide film as photocatalytic coating, and the ultraviolet transmittance of the fluorescent tube of ultraviolet lamp 14 is 85～90%, and sorbent material 16 is gac and the natural zeolite mixture of 2:1 by volume.The bottom of light-catalyzed reaction case 11 is water tank 18, and the bottom of water tank 18 is connected the drainage circulated sprinkling head 13 of light-catalyzed reaction case 11 with drainage circulation tube 16 by drainage recycle pump 19, and water tank 18 is provided with water outlet 17.
Evenly spray on ultraviolet lamp 14 and sorbent material 16 and carry out photochemical catalytic oxidation and absorption reaction by drainage spray header 12 by ultra-filtration membrane reaction box 9 drainage after treatment.In light-catalyzed reaction, the adsorbable pollutant in water of mesoporous titanium dioxide film also makes it oxidative degradation and mineralising by exciting of ultraviolet photon, and the sorbent material of gac and natural zeolite composition can adsorb by light-catalyzed reaction does not have the pollution substance under degradable omission.
The case 18 of light-catalyzed reaction case 11 bottoms repeats to spray by drainage recycle pump 19 and drainage circulated sprinkling head 13, so that reaches best Effects of Water Quality.Process water and automatically overflow reuse water by water outlet 17 in the time that water tank is expired for 18 years.
The above is structure of the present invention and operational scheme, is not the present invention is done to any pro forma restriction.Those skilled in the art, in the situation that not departing from technical scheme scope of the present invention, utilize the apparatus and method of above-mentioned announcement to do possible variation and amendment, all belong to the scope of the claims in the present invention protection.
Claims (9)
1. ultra-filtration membrane is combined a light-catalysed reclaimed water reuse device, mainly formed by ultrafiltration membrance filter case and light-catalyzed reaction case, wherein:
The water-in of ultrafiltration membrance filter case connects an intake pump;
The bottom of ultrafiltration membrance filter case is provided with boring aeration pipe, and this boring aeration pipe connects aeration pump;
The water outlet of ultra-filtration membrane reaction box connects suction filter pump by drinking-water pipe, and suction filter pump connects the drainage spray header of light-catalyzed reaction case by filter pipe;
The bottom of light-catalyzed reaction case is water tank, and the bottom of water tank is connected the drainage circulated sprinkling head of light-catalyzed reaction case with drainage circulation tube by drainage recycle pump;
The below that is positioned at drainage circulated sprinkling head in light-catalyzed reaction case is provided with ultraviolet lamp and sorbent material;
The fluorescent tube of ultraviolet lamp is placed in silica tube, and silica tube outer wall scribbles photocatalytic coating.
2. ultra-filtration membrane is combined light-catalysed reclaimed water reuse device according to claim 1, wherein, in ultrafiltration membrance filter case, is provided with hyperfiltration membrane assembly, and hyperfiltration membrane assembly is by aperture 0.1～0.2 μ m, and the polypropylene of Fibre diameter 430～480 μ m forms.
3. combine light-catalysed reclaimed water reuse device according to ultra-filtration membrane described in claim 1 or 2, wherein, in ultrafiltration membrance filter case, be provided with multiple hyperfiltration membrane assemblies.
4. ultra-filtration membrane is combined light-catalysed reclaimed water reuse device according to claim 1, and wherein, the casing top of ultra-filtration membrane reaction box is provided with water-level probe to keep the water yield in ultra-filtration membrane reaction box.
5. ultra-filtration membrane is combined light-catalysed reclaimed water reuse device according to claim 1, wherein, light-catalyzed reaction case forms by multiple photocatalytic reaction units are overlapping, and drainage spray header is placed in the photocatalytic reaction unit of the superiors, and drainage circulated sprinkling head is placed in each photocatalytic reaction unit.
6. ultra-filtration membrane is combined light-catalysed reclaimed water reuse device according to claim 1, and wherein, the photocatalytic coating of silica tube outer wall is mesoporous titanium dioxide film.
7. combine light-catalysed reclaimed water reuse device according to ultra-filtration membrane described in claim 1 or 6, wherein, the ultraviolet transmittance of silica tube is 85～90%.
8. ultra-filtration membrane is combined light-catalysed reclaimed water reuse device according to claim 1, and wherein, sorbent material is gac and the natural zeolite mixture of 2:1 by volume.
9. ultra-filtration membrane is combined light-catalysed reclaimed water reuse device according to claim 1, and wherein, water tank is provided with water outlet, automatically overflows reuse water when water tank carries when full by water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478804.2A CN104193055B (en) | 2014-09-18 | 2014-09-18 | Light-catalysed reclaimed water reuse device combined by a kind of ultra-filtration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478804.2A CN104193055B (en) | 2014-09-18 | 2014-09-18 | Light-catalysed reclaimed water reuse device combined by a kind of ultra-filtration membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104193055A true CN104193055A (en) | 2014-12-10 |
| CN104193055B CN104193055B (en) | 2016-04-13 |
Family
ID=52078477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410478804.2A Active CN104193055B (en) | 2014-09-18 | 2014-09-18 | Light-catalysed reclaimed water reuse device combined by a kind of ultra-filtration membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104193055B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990202A (en) * | 2017-05-02 | 2017-07-28 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of visible optical drive catalysis material water treatmenting performance |
| CN107024562A (en) * | 2017-05-02 | 2017-08-08 | 浙江理工大学 | A kind of device and method for evaluating catalysis material water treatmenting performance under visible optical drive |
| CN107024561A (en) * | 2017-05-02 | 2017-08-08 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of simulated solar optical drive catalysis material water treatmenting performance |
| CN107064407A (en) * | 2017-05-02 | 2017-08-18 | 浙江理工大学 | The device and method of catalysis material water treatmenting performance under a kind of Simulation sun optical drive |
| CN107101965A (en) * | 2017-05-02 | 2017-08-29 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of ultraviolet optical drive catalysis material water treatmenting performance |
| CN110294570A (en) * | 2019-06-28 | 2019-10-01 | 浙江水艺环境科技有限公司 | A kind of novel pretreatment membrane bioreactor and its application method |
| CN111592162A (en) * | 2020-05-27 | 2020-08-28 | 山东膜源水净化科技股份有限公司 | Water treatment ultrafiltration membrane component |
| CN113636721A (en) * | 2021-08-12 | 2021-11-12 | 河南工业大学 | Device and method for treating secondary effluent of sewage plant |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040096112A (en) * | 2003-05-07 | 2004-11-16 | 주식회사 효성 | Water Purification Apparatus containing a Photo-catalyzed oxidation part and a Membrane-filtering part |
| CN1721335A (en) * | 2004-07-15 | 2006-01-18 | 北京航空航天大学 | Photo-catalytic water purification post |
| US20070246432A1 (en) * | 2004-07-20 | 2007-10-25 | Komatsu Electronic Co., Ltd. | TOC component removing apparatus and process for removing TOC components |
| CN201686576U (en) * | 2010-01-19 | 2010-12-29 | 广州市昇华机械制造有限公司 | Sewage treatment device |
| CN202766327U (en) * | 2012-07-19 | 2013-03-06 | 湖南先科环保有限公司 | High-efficiency recyclable photocatalysis industrial wastewater treatment device |
| CN203498212U (en) * | 2013-09-24 | 2014-03-26 | 兰州交通大学 | Integrated miniature multi-dimensional electrode electric flocculation combined immersed ultrafiltration water purification device |
-
2014
- 2014-09-18 CN CN201410478804.2A patent/CN104193055B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040096112A (en) * | 2003-05-07 | 2004-11-16 | 주식회사 효성 | Water Purification Apparatus containing a Photo-catalyzed oxidation part and a Membrane-filtering part |
| CN1721335A (en) * | 2004-07-15 | 2006-01-18 | 北京航空航天大学 | Photo-catalytic water purification post |
| US20070246432A1 (en) * | 2004-07-20 | 2007-10-25 | Komatsu Electronic Co., Ltd. | TOC component removing apparatus and process for removing TOC components |
| CN201686576U (en) * | 2010-01-19 | 2010-12-29 | 广州市昇华机械制造有限公司 | Sewage treatment device |
| CN202766327U (en) * | 2012-07-19 | 2013-03-06 | 湖南先科环保有限公司 | High-efficiency recyclable photocatalysis industrial wastewater treatment device |
| CN203498212U (en) * | 2013-09-24 | 2014-03-26 | 兰州交通大学 | Integrated miniature multi-dimensional electrode electric flocculation combined immersed ultrafiltration water purification device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990202A (en) * | 2017-05-02 | 2017-07-28 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of visible optical drive catalysis material water treatmenting performance |
| CN107024562A (en) * | 2017-05-02 | 2017-08-08 | 浙江理工大学 | A kind of device and method for evaluating catalysis material water treatmenting performance under visible optical drive |
| CN107024561A (en) * | 2017-05-02 | 2017-08-08 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of simulated solar optical drive catalysis material water treatmenting performance |
| CN107064407A (en) * | 2017-05-02 | 2017-08-18 | 浙江理工大学 | The device and method of catalysis material water treatmenting performance under a kind of Simulation sun optical drive |
| CN107101965A (en) * | 2017-05-02 | 2017-08-29 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of ultraviolet optical drive catalysis material water treatmenting performance |
| CN110294570A (en) * | 2019-06-28 | 2019-10-01 | 浙江水艺环境科技有限公司 | A kind of novel pretreatment membrane bioreactor and its application method |
| CN111592162A (en) * | 2020-05-27 | 2020-08-28 | 山东膜源水净化科技股份有限公司 | Water treatment ultrafiltration membrane component |
| CN111592162B (en) * | 2020-05-27 | 2021-05-04 | 山东膜源水净化科技股份有限公司 | Water treatment ultrafiltration membrane component |
| CN113636721A (en) * | 2021-08-12 | 2021-11-12 | 河南工业大学 | Device and method for treating secondary effluent of sewage plant |
| CN113636721B (en) * | 2021-08-12 | 2023-09-15 | 河南工业大学 | Device and method for treating secondary effluent of sewage plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104193055B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104193055B (en) | Light-catalysed reclaimed water reuse device combined by a kind of ultra-filtration membrane | |
| CN201433143Y (en) | External pressure type ultra-filtration membrane water purification device | |
| CN205295018U (en) | Portable degree of depth water processing system | |
| CN205873999U (en) | Prevent aeration systems of long -pending mud of MBR membrane group ware | |
| CN109534588A (en) | Ship rainwater purification apparatus | |
| CN105836939A (en) | Intelligent integrated water supply purification system | |
| CN204752404U (en) | Portable landfill leachate processing apparatus | |
| JP2006015274A (en) | Water treatment apparatus | |
| JP2002059152A (en) | System for cleaning water | |
| CN204022592U (en) | A kind of Treated sewage reusing treatment facility | |
| CN206255958U (en) | One kind is applied to sponge urban ecology ground sewage processing unit | |
| CN2832796Y (en) | Deep purification drinking machine employing titanium dioxide photocatalyst | |
| JP2002346581A (en) | Treatment apparatus and treatment method for organic wastewater | |
| CN104140172A (en) | Seawater desalination pretreatment method | |
| CN103073153B (en) | Municipal domestic wastewater treatment and comprehensive recycling equipment and method thereof | |
| CN208249977U (en) | Light intensity energy-saving sewage treating device | |
| CN204039187U (en) | A kind of household water purification system of electric flocculation treatment reverse osmosis concentrated water | |
| CN203269626U (en) | Membrane treatment device for industrial wastewater treatment | |
| RU132437U1 (en) | STATION OF DEEP BIOCHEMICAL CLEANING OF HOUSEHOLD WASTE WATER | |
| CN207142972U (en) | A kind of efficient process system for municipal sewage | |
| RU70512U1 (en) | COMPACT INSTALLATION OF BIOLOGICAL CLEANING AND DISINFECTION OF SEWAGE WATER USING MEMBRANE FILTRATION | |
| CN109110941A (en) | The multi-medium filtering regeneration integrated apparatus and method of secondary effluent advanced treating | |
| CN208038256U (en) | A kind of intelligence MBR integrated domestic sewage treatment devices | |
| CN110372152A (en) | A kind of intellectual modularization Novel sewage integration apparatus | |
| CN207016618U (en) | A kind of thermal power plant's sewage zero-discharge processing unit |
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 |