CN105712577A - Reverse control energy-saving type medical wastewater treatment method and device - Google Patents
Reverse control energy-saving type medical wastewater treatment method and device Download PDFInfo
- Publication number
- CN105712577A CN105712577A CN201610080058.0A CN201610080058A CN105712577A CN 105712577 A CN105712577 A CN 105712577A CN 201610080058 A CN201610080058 A CN 201610080058A CN 105712577 A CN105712577 A CN 105712577A
- Authority
- CN
- China
- Prior art keywords
- pool
- waste water
- energy
- medical waste
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a reverse control energy-saving type medical wastewater treatment device which comprises a water collection pool, an anaerobic tank, a balance pool, a contact oxidation pool, a sedimentation pool and a disinfection pool which are sequentially connected.The contact oxidation pool is connected with a first liquid level meter, a DO dissolved oxygen instrument and a draught fan used for introducing air into the contact oxidation pool.The draught fan is connected with a frequency converter.The invention aims at providing a reverse control energy-saving type medical wastewater treatment method which is good in treatment effect, and capable of lowering the energy consumption and saving reagents.Meanwhile, the invention further discloses the device for achieving the method.
Description
Technical field
The present invention relates to sewage treatment equipment field, specifically a kind of energy-saving medical waste water processing method of Reverse Turning Control and device.
Background technology
Starting from 2005, medical waste water is except sterilizing, in addition it is also necessary to COD in waste water, ammonia nitrogen processes.In processing medical waste water, except the sanitary sewage of in-patient department, also include the waste water of clinical laboratory.In this strand of waste water, often with antibacterial, organic solution etc..In medical waste water processes, energy consumption and maximum two pieces of operating cost are aerating system and the disinfection systems of contact-oxidation pool.In traditional medical waste water processing method, it is generally adopted liquid-level switch start and stop sewage treatment equipment, but from collecting-tank to contact-oxidation pool, needs a period of time, from contact-oxidation pool to sterilization pool, be also required to certain time.After waste water starts startup from elevator pump, waste water just gradually forms stable liquid level difference through pretreatment and anaerobic technique mixing, then flows into subsequent processing units.If at this moment aerating system and medicine system start-stop simultaneously, will result in the waste of energy consumption and medicament.When collecting-tank liquid level to low liquid level, elevator pump cuts out, and inside traditional handicraft, is generally adopted time delay sterilization switch, but Aerobic Pond is generally closed at once.It practice, after elevator pump closedown, waste water also can continue to flow into toward next workshop section, and reaction will not stop immediately.Close closed system and time-delay closing at once, or cause energy waste, or process not thorough.
Summary of the invention
It is an object of the invention to provide the energy-saving medical waste water processing method of the Reverse Turning Control of a kind of high treating effect, energy efficient and medicament, the invention also discloses a kind of device realizing the method simultaneously.
The concrete technical scheme of the present invention is: a kind of energy-saving medical waste water of Reverse Turning Control processes device, it is characterized in that, including the collecting-tank being sequentially connected with, anaerobic pond, counterbalance cell, contact-oxidation pool, sedimentation tank, sterilization pool, also include control system, wherein, described contact-oxidation pool is connected to the first liquidometer, DO dissolved oxygen instrument and for passing into the blower fan of air in contact-oxidation pool, described blower fan is connected to converter and the 3rd clock switch, described control system respectively with the first liquidometer, DO dissolved oxygen instrument, converter and the 3rd clock switch are connected.
Process in device at the above-mentioned energy-saving medical waste water of Reverse Turning Control, it is provided with the first elevator pump between described described collecting-tank, anaerobic pond, the first described elevator pump is provided with very first time switch, described collecting-tank is provided with the second liquidometer, and described very first time switch, the second liquidometer are connected with control system respectively.
Process in device at the above-mentioned energy-saving medical waste water of Reverse Turning Control, described sterilization pool is connected with sedimentation tank, the second elevator pump it is provided with between described sterilization pool and sedimentation tank, described sterilization pool is connected to the 3rd liquidometer, the second described elevator pump is provided with the second clock switch, being provided with multiple sterilization module in described sterilization pool, described the 3rd liquidometer, the second clock switch are connected with control system respectively.
Process in device at the above-mentioned energy-saving medical waste water of Reverse Turning Control, Y=0.13e(1-X/X0), wherein X is the actual liquid level of contact-oxidation pool, and X0 is the highest liquid level of contact-oxidation pool, and Y is the frequency of converter.
Processing in device at the above-mentioned energy-saving medical waste water of Reverse Turning Control, described anaerobic pond is arranged over water-locator, and described water-locator connects with collecting-tank.
Processing in device at the above-mentioned energy-saving medical waste water of Reverse Turning Control, the bottom of described counterbalance cell is provided with reflux pump, and described backflow delivery side of pump is connected to water-locator.
Process in device at the above-mentioned energy-saving medical waste water of Reverse Turning Control, fluidized-bed reaction room that described anaerobic pond includes from bottom to top arranging, liquid-solid--gas three-phase separation area, overflow area, the outlet of described water-locator is arranged on fluidized-bed reaction indoor, and described overflow area and counterbalance cell pass through pipeline communication
Meanwhile, another object of the present invention is in that to disclose a kind of energy-saving medical waste water processing method of Reverse Turning Control adopting above-mentioned device, and described method includes:
Medical waste water sequentially passes through collecting-tank, anaerobic pond, counterbalance cell, contact-oxidation pool, sedimentation tank, sterilization pool process；
The power of the blower fan of contact-oxidation pool and working time are controlled by converter and the 3rd clock switch, described converter and the 3rd clock switch control and pass through the oxygen content in DO dissolved oxygen instrument detection contact-oxidation pool by the first liquidometer, the liquid level of collecting-tank is controlled by the first elevator pump, and the working time of the first elevator pump is controlled by very first time switch, the second liquidometer；
The liquid level of sterilization pool is controlled by the second elevator pump, and the working time of the second elevator pump is controlled by the second clock switch, the 3rd liquidometer.
In the above-mentioned energy-saving medical waste water processing method of Reverse Turning Control, Y=0.13e (1-X/X0), wherein X is the actual liquid level of contact-oxidation pool, and X0 is the highest liquid level of contact-oxidation pool, and Y is the variable frequency function of converter.
In the above-mentioned energy-saving medical waste water processing method of Reverse Turning Control, in processing procedure, being back in water-locator by reflux pump by the liquid portion of counterbalance cell, described water-locator is arranged on anaerobic pond.
Compared with prior art, the beneficial effects of the present invention is:
The abundant Reverse Turning Control of method of the present invention, closedown and unlatching to contact-oxidation pool and sterilization pool are simulated, it is possible to saving the energy of 10-20%, operating cost reduces by more than 10%；
The present invention utilizes the anaerobic pond with three phase separation, by the backflow of counterbalance cell, strengthens anaerobic pond stirring and treatment effeciency, and pass through three phase separator, prevent from running mud, it is possible to be greatly improved the treatment effeciency of anaerobic pond, thus reducing energy consumption and the operating cost of subsequent touch oxidation pond and sterilization pool.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1；
Fig. 2 is the block diagram of the Reverse Turning Control of the embodiment of the present invention 1.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme is described in further detail, but does not constitute any limitation of the invention.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of energy-saving medical waste water of Reverse Turning Control processes device, including the collecting-tank 1 being sequentially connected with, anaerobic pond 2, counterbalance cell 3, contact-oxidation pool 4, sedimentation tank 5, sterilization pool 6, wherein, described contact-oxidation pool 4 is connected to the first liquidometer 41, DO dissolved oxygen instrument 42 and for passing into the blower fan 43 of air in contact-oxidation pool 4, described blower fan 43 is connected to converter 44 and the 3rd clock switch 45；Blower fan 43 could be arranged to 2 and uses in turn, it is provided with the first elevator pump 11 between described described collecting-tank 1, anaerobic pond 2, the first described elevator pump 11 is provided with very first time switch 12, described collecting-tank 1 is provided with the second liquidometer 13, described sterilization pool 6 is connected with sedimentation tank 5, the second elevator pump 51 it is provided with between described sterilization pool 6 and sedimentation tank 5, multiple sterilization module 62 it is provided with in described sterilization pool 6, being connected to the 3rd liquidometer 61 on described sterilization pool 6, the second described elevator pump 51 is provided with the second clock switch 52.Specifically, the second elevator pump 51 could be arranged to the second main elevator pump and the second secondary elevator pump, uses in turn, and when a pump is in running order, an other pump is in resting state.
In the present embodiment, also include control system 7, the first described liquidometer 41, second liquidometer 13, 3rd liquidometer 61, very first time switch 12, second clock switch 52, DO dissolved oxygen instrument 42, 3rd clock switch 45, sterilization module 62 is connected with control system 7 respectively, described anaerobic pond 2 is arranged over water-locator 21, described water-locator 21 connects with collecting-tank 1, the bottom of described counterbalance cell 3 is provided with reflux pump 31, the outlet of described reflux pump 31 is connected to water-locator 21, described anaerobic pond 2 includes the fluidized-bed reaction room 22 from bottom to top arranged, liquid-solid--gas three-phase separation area 23, overflow area 24, the outlet of described water-locator 21 is arranged in fluidized-bed reaction room 22, pipeline communication is passed through with counterbalance cell 3 in described overflow area 24.
In the present invention, first liquidometer the 41, second liquidometer the 13, the 3rd liquidometer 61 is ultrasonic liquid level switch.
Adopt above-mentioned system in actual applications method particularly includes:
Medical waste water sequentially passes through collecting-tank 1, anaerobic pond 2, counterbalance cell 3, contact-oxidation pool 4, sedimentation tank 5, sterilization pool 6 process, and wherein, the parameter of described converter 44 is Y, and the highest liquid level of contact-oxidation pool 4 is X0, the actual liquid level of contact-oxidation pool 4 is X, Y=i*e(1-X/X0), wherein power H is relevant to the specification A of contact-oxidation pool 4, blower fan 43 for i value, and in general, the specification A of contact-oxidation pool 4 is more big, the power H of blower fan 43 is more little, then the value of i is more big.
Wherein, the liquid level of collecting-tank 1 is controlled by the first elevator pump 11, and the working time of the first elevator pump 11 is controlled by very first time switch the 12, second liquidometer 13；
The liquid level of sterilization pool 6 is controlled by the second elevator pump 51, the working time of the second elevator pump 51 is controlled by the second clock switch the 52, the 3rd liquidometer 61, in processing procedure, being back in water-locator 21 by reflux pump 31 by the liquid portion of counterbalance cell 3, described water-locator 21 is arranged on anaerobic pond 2.
Application Example 1
1, target waste water
Processing waste water is the waste water of hospital, and wastewater treatment capacity is 220t/d.Influent COD changes between 200～350mg/L.
2, technological parameter
Using device as shown in Figure 1, control system 7 logic chart such as Fig. 2, concrete technological parameter is as follows:
(1) band three phase separation anaerobic pond 240m3；Counterbalance cell 35m3；
(2) contact-oxidation pool 460m3；
(3) modularity decontaminating apparatus 8 overlaps.
3, the effect of wastewater treatment:
Through the debugging of 2 months, then noting down experimental result, from testing result it can be seen that the method can resistance to waste water load be impacted, anaerobic pond 2 can significantly to COD process in waste water, water outlet energy stably reaching standard.
In contact-oxidation pool 4, mathematical function being set to: Y=0.13e (1-x/x0), wherein X is actual liquid level, and X0 is the highest liquid level, and Y is variable frequency function.
2, the effect of wastewater treatment and analysis of performance cost:
Treated water all can reach Treated sewage reusing standard, and sludge quantity is 0.5t every month, significantly reduces Treatment of Sludge burden.Whole equipment dynamic consumption is 0.3 yuan/ton, and total hrt is 11.16h, has economized half the time than conventional art, and equipment volume decreases half.
The above-described presently preferred embodiments of the present invention that is only, all any amendment, equivalent replacement and improvement etc. made within the scope of the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (10)
1. the energy-saving medical waste water of Reverse Turning Control processes device, it is characterized in that, including the collecting-tank being sequentially connected with, anaerobic pond, counterbalance cell, contact-oxidation pool, sedimentation tank, sterilization pool, also include control system, wherein, described contact-oxidation pool is connected to the first liquidometer, DO dissolved oxygen instrument and for passing into the blower fan of air in contact-oxidation pool, being connected to converter and the 3rd clock switch on described blower fan, described control system is connected with the first liquidometer, DO dissolved oxygen instrument, converter and the 3rd clock switch respectively.
2. the energy-saving medical waste water of Reverse Turning Control according to claim 1 processes device, it is characterized in that, it is provided with the first elevator pump between described described collecting-tank, anaerobic pond, the first described elevator pump is provided with very first time switch, described collecting-tank is provided with the second liquidometer, and described very first time switch, the second liquidometer are connected with control system respectively.
3. the energy-saving medical waste water of Reverse Turning Control according to claim 2 processes device, it is characterized in that, described sterilization pool is connected with sedimentation tank, the second elevator pump it is provided with between described sterilization pool and sedimentation tank, described sterilization pool is connected to the 3rd liquidometer, the second described elevator pump is provided with the second clock switch, is provided with multiple sterilization module in described sterilization pool, and described the 3rd liquidometer, the second clock switch are connected with control system respectively.
4. the energy-saving medical waste water of Reverse Turning Control according to claim 3 processes device, it is characterised in that Y=0.13e(1-X/X0), wherein X is the actual liquid level of contact-oxidation pool, and X0 is the highest liquid level of contact-oxidation pool, and Y is the frequency of converter.
5. the energy-saving medical waste water of Reverse Turning Control according to claim 4 processes device, it is characterised in that described anaerobic pond is arranged over water-locator, and described water-locator connects with collecting-tank.
6. the energy-saving medical waste water of Reverse Turning Control according to claim 5 processes device, it is characterised in that the bottom of described counterbalance cell is provided with reflux pump, and described backflow delivery side of pump is connected to water-locator.
7. the energy-saving medical waste water of Reverse Turning Control according to claim 6 processes device, it is characterized in that, fluidized-bed reaction room that described anaerobic pond includes from bottom to top arranging, liquid-solid--gas three-phase separation area, overflow area, the outlet of described water-locator is arranged on fluidized-bed reaction indoor, and described overflow area and counterbalance cell pass through pipeline communication.
8. one kind adopt as arbitrary in claim 1-7 as described in the energy-saving medical waste water processing method of Reverse Turning Control of device, it is characterised in that described method includes:
Medical waste water sequentially passes through collecting-tank, anaerobic pond, counterbalance cell, contact-oxidation pool, sedimentation tank, sterilization pool process；
The power of the blower fan of contact-oxidation pool and working time are controlled by converter and the 3rd clock switch, described converter and the 3rd clock switch control and pass through the oxygen content in DO dissolved oxygen instrument detection contact-oxidation pool by the first liquidometer, the liquid level of collecting-tank is controlled by the first elevator pump, and the working time of the first elevator pump is controlled by very first time switch, the second liquidometer；
The liquid level of sterilization pool is controlled by the second elevator pump, and the working time of the second elevator pump is controlled by the second clock switch, the 3rd liquidometer.
9. the energy-saving medical waste water processing method of Reverse Turning Control according to claim 8, it is characterized in that, Y=0.13e (1-X/X0), wherein X is the actual liquid level of contact-oxidation pool, X0 is the highest liquid level of contact-oxidation pool, and Y is the variable frequency function of converter.
10. the energy-saving medical waste water processing method of Reverse Turning Control according to claim 8 or claim 9, it is characterised in that in processing procedure, being back in water-locator by reflux pump by the liquid portion of counterbalance cell, described water-locator is arranged on anaerobic pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080058.0A CN105712577A (en) | 2016-02-04 | 2016-02-04 | Reverse control energy-saving type medical wastewater treatment method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080058.0A CN105712577A (en) | 2016-02-04 | 2016-02-04 | Reverse control energy-saving type medical wastewater treatment method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105712577A true CN105712577A (en) | 2016-06-29 |
Family
ID=56155766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610080058.0A Pending CN105712577A (en) | 2016-02-04 | 2016-02-04 | Reverse control energy-saving type medical wastewater treatment method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105712577A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024369A (en) * | 2000-09-25 | 2002-03-30 | 배장영 | System of the purification river water with biological contact oxidation type to install on any natural river banks and water sides |
| CN101070218A (en) * | 2007-06-16 | 2007-11-14 | 张动科 | Neutralization-free furfural wastewater biochemical treatment process |
| CN101234836A (en) * | 2008-02-20 | 2008-08-06 | 重庆钢铁集团三峰科技有限公司 | Garbage percolate treatment technique |
| CN102424486A (en) * | 2011-10-18 | 2012-04-25 | 中国环境保护公司 | Process and apparatus for treating waste water in medical waste disposal plant |
| CN102826726A (en) * | 2012-09-25 | 2012-12-19 | 重庆三峰环境产业集团有限公司 | Refuse incineration plant leachate treatment process |
| CN202625944U (en) * | 2012-06-05 | 2012-12-26 | 派石新能源技术开发(北京)有限公司 | Energy-saving variable-frequency regulating accurate aerating system |
| CN202785928U (en) * | 2012-09-25 | 2013-03-13 | 重庆三峰环境产业集团有限公司 | Anaerobic sludge bed reaction device |
| CN203890204U (en) * | 2014-06-19 | 2014-10-22 | 珠海力合环境工程有限公司 | Comprehensive treatment system of medical wastewater |
-
2016
- 2016-02-04 CN CN201610080058.0A patent/CN105712577A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024369A (en) * | 2000-09-25 | 2002-03-30 | 배장영 | System of the purification river water with biological contact oxidation type to install on any natural river banks and water sides |
| CN101070218A (en) * | 2007-06-16 | 2007-11-14 | 张动科 | Neutralization-free furfural wastewater biochemical treatment process |
| CN101234836A (en) * | 2008-02-20 | 2008-08-06 | 重庆钢铁集团三峰科技有限公司 | Garbage percolate treatment technique |
| CN102424486A (en) * | 2011-10-18 | 2012-04-25 | 中国环境保护公司 | Process and apparatus for treating waste water in medical waste disposal plant |
| CN202625944U (en) * | 2012-06-05 | 2012-12-26 | 派石新能源技术开发(北京)有限公司 | Energy-saving variable-frequency regulating accurate aerating system |
| CN102826726A (en) * | 2012-09-25 | 2012-12-19 | 重庆三峰环境产业集团有限公司 | Refuse incineration plant leachate treatment process |
| CN202785928U (en) * | 2012-09-25 | 2013-03-13 | 重庆三峰环境产业集团有限公司 | Anaerobic sludge bed reaction device |
| CN203890204U (en) * | 2014-06-19 | 2014-10-22 | 珠海力合环境工程有限公司 | Comprehensive treatment system of medical wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104355478B (en) | A kind of dyeing and printing sewage processes system | |
| CN202968311U (en) | Water treatment system | |
| KR20210036407A (en) | Reinforcement method to treat high ammonia nitrogen wastewater from coal chemical industry in SBR process pool | |
| CN207958081U (en) | A kind of sewage disposal system | |
| CN108609728A (en) | A kind of system and control method using dissolved oxygen modified sewage sludge filamentary discharges | |
| CN212174718U (en) | Distributed sewage treatment integrated equipment | |
| CN206069501U (en) | The micro- aerobic membrane bioreactor of integrated high-efficiency removal of carbon and nitrogen | |
| WO2018196666A1 (en) | Fermentation equipment used for organic matter and method therefor | |
| CN205387531U (en) | Energy -saving medical effluent treatment plant of reverse control | |
| CN111977846A (en) | Method for treating high-concentration organophosphorus pesticide wastewater through multistage Fenton catalytic oxidation | |
| CN105712577A (en) | Reverse control energy-saving type medical wastewater treatment method and device | |
| CN115321637A (en) | Method for removing antibiotic resistance genes by vacuum ultraviolet/potassium hydrogen persulfate coupled advanced oxidation and regulation and control system | |
| CN104828945A (en) | Method for treating low-carbon and high-nitrogen starch wastewater based on modified SBR method | |
| CN205500884U (en) | Countercurrent circuit ozone oxidation experimental apparatus | |
| CN210176689U (en) | Wastewater treatment equipment with high phosphorus content | |
| CN209797695U (en) | Waste water treatment device that dull and stereotyped ceramic membrane and SBR combine | |
| CN209052506U (en) | Integral type oxidation-reduction reactor | |
| CN206985903U (en) | A kind of medicine wastewater treatment equipment | |
| CN208856981U (en) | A kind of device using external bioreactor for treatment sewage containing activated sludge | |
| CN205974094U (en) | Laboratory sewage treatment plant | |
| CN206244587U (en) | Compact high efficient biochemistry ozone oxidation sewage treatment unit | |
| CN206395928U (en) | Multistage interactive biological denitrification system | |
| CN105645671B (en) | A kind of method of SKL triphase catalytic oxidation-BAF advanced treating wastewater from chemical industry | |
| CN203683226U (en) | Anoxic membrane bioreaction integrated sewage treatment equipment | |
| CN221027945U (en) | Double-precipitation sewage treatment device for sewage with high ammonia nitrogen and low carbon nitrogen ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |