CN107557106A - A kind of coal bio-desulfurization device and its application method - Google Patents
A kind of coal bio-desulfurization device and its application method Download PDFInfo
- Publication number
- CN107557106A CN107557106A CN201710907596.7A CN201710907596A CN107557106A CN 107557106 A CN107557106 A CN 107557106A CN 201710907596 A CN201710907596 A CN 201710907596A CN 107557106 A CN107557106 A CN 107557106A
- Authority
- CN
- China
- Prior art keywords
- coal
- slurries
- sulfuric acid
- value
- desulfurization
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of coal bio-desulfurization device and its application method, it is blended in using rhodococcus erythropolis and Thiobacillus ferrooxidans in the sulphuric acid environment of pH value 1 ~ 2 and the inorganic sulfur in coal is removed by biological respinse method, devise a kind of coal bio-desulfurization device, mainly have with bacterium tank, bacterium solution measuring pump, pH value measuring instrument, agitator, bioreactor, conveyer, water-delivery pump, pulverizer, fluid level transmitter, acid is taken to take iron flask, drying machine, rinsing machine, filter, air blower, slurries pump, PLC control system, it is aerated coil pipe, temperature transmitter, sulfuric acid measuring pump, sulfuric acid storage tank, rhodococcus erythropolis culture tank and Thiobacillus ferrooxidans culture tank composition, give the operating procedure and application method of device；The inventive desulfurization time significantly shortens, and desulfuration efficiency is high, and coal slurry, coal washing water circulation use, three-waste free discharge, is suitable for industrial treatment production.
Description
Technical field
The invention belongs to desulphurization plant technical field, and in particular to a kind of coal bio-desulfurization device and its application method, profit
Enzymatic sulfur-containing compound with microorganism or contained by it, to realize the device of coal desulfurization and its application method.
Background technology
Biological desulphurization is to utilize microorganism or the enzymatic sulfur content in coal compound contained by it（FeS2, H2S, organic sulfur etc.）,
Wherein sulphur is discharged, to realize the method for coal desulfurization.Coal combustion before bioanalysis desulfurization have safe and environment-friendly, low consumption and
The characteristics of efficient, but there is the shortcomings of operation cycle is longer, and desulfuration efficiency is not high in biological desulphurization for coal method, be unfavorable for scale
Industrial treatment.The biological desulfurization method desulfurization cycle that coal is disclosed such as ZL2014101802599 patents is up to tens of days, and desulfurization
Rate is only 57.8%, it is difficult to carry out large-scale industrial processing.Traditional biological desulfurizing technology is incomplete, enters containing sulfide de-
Reaction of Salmon-Saxl device does not carry out carrying out washing treatment, it is easily produced fatal harm to desulfurization microorganism, reduces desulfurization rate；Desulfurization
When cause that oxygen content in doctor solution is too high or too low, and microorganism decomposes sulphur compound due to the input quantity of uncontrollable oxygen
More acidic materials are generated, cause microbe survival bad environments, influence microbe survival, desulfuration efficiency is low, the desulfurization cycle
It is longer.In recent years, the environmental problem caused by China's economic development is increasingly valued by people, and desulfurization is carried out to coal
Processing has seemed more and more important and necessary.
The content of the invention
The present invention is intended to provide a kind of coal bio-desulfurization device and its application method, are removed in coal using following sulfur method
Inorganic sulfur；It is 25 ~ 35% slurries that the coal of crushing is made into Coal Quality concentration in bioreactor；Added into coal slurry
Dilute sulfuric acid, and pH value is adjusted as 1.0 ~ 2.0；The inoculation total amount for adding two kinds of bacterium is 2 × 108 ~ 5 × 108/mL, two strains
Corresponding total amount ratio is 1:2~3；Continue stirring reaction, make coal even suspension in slurries；And continuous uniform blasts air, in coal
Powder is uniformly distributed in slurries；Normal temperature sustained response 24 ~ 48 hours, by coal stirring washing, filtering after the desulfurization in bioreactor
Drying desulfurized coal afterwards.For sweetening process to texture of coal without destruction, desulfurization time is short, and desulfuration efficiency is high, and coal slurry recycles,
Three-waste free discharge, it is suitable for industrial treatment production.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of coal bio-desulfurization device and its application method, according to the sulfur method described in present invention, invent the de- of design
Sulphur schematic device is as shown in figure 1, device composition mainly has：
1. bacterium solution compounding system, including with bacterium tank, rhodococcus erythropolis and Thiobacillus ferrooxidans mixed bacteria liquid are prepared in proportion,
It is pumped into by rhodococcus erythropolis storage tank with Thiobacillus ferrooxidans storage tank through measuring pump；The bacterium solution of preparation is pumped into biology by measuring pump
Reactor；
2. sulfuric acid storage tank, for storing the sulfuric acid that pH value is adjusted during for starting reaction, and biology is pumped into instead through sulfuric acid measuring pump
Answer device；
3. PLC control system, it is made up of PLC with corresponding measurement pick-up component control software；PH value measuring instrument,
For measuring the pH numerical value with pick-up slurries；Fluid level transmitter measures pick-up reactor liquid level；Temperature transmitter measurement biology is anti-
Answer temperature in device；
4. agitator, being stirred to slurries in bioreactor, the uniform of slurries in bioreactor, bacterium solution and air is realized
Distribution；
5. feed coal crushes induction system, feed coal crushes and screens through pulverizer enters bioreactor through conveyer；
6. water-delivery pump, for conveying River Bank Stability water to bioreactor；
7. the slurries after reaction desulfuration are delivered to filter by filtering washing drying system, slurries pump, coal dust is again after rinsing machine
Drying machine is dried to obtain desulfurized coal；
8. aerating system, the aeration coil pipe ejection that air enters reactor lower part through air blower realizes that air uniformly divides in slurries
Cloth；
9. bioreactor, realizing and preparing coal slurry, biological desulphurization reaction, top is provided with stirring, entered provided with bacterium solution import, sulfuric acid
Mouth, charging aperture, water inlet, serum outlet, air inlet and gas outlet etc., bottom are provided with multilayer aeration coil pipe；
10. taking acid to take iron flask, caused sulfuric acid in course of reaction and ferric sulfate are periodically taken out.
A kind of coal bio-desulfurization device and its application method, according to the sulfur method described in present invention, invention design
Desulfurizer use following operating procedure and method：
1. prepare before desulfurization
（1）Rhodococcus erythropolis is cultivated with Thiobacillus ferrooxidans, the preparation of mixed bacteria liquid；
（2）Sulfuric acid deposit；
（3）Water filling in reactor；
（4）Raw coal crushes；
2. River Bank Stability
（1）Open air blower aeration；
（2）Open stirring；
（3）Coal dust inputs；
（4）Sulfuric acid is quantitatively pumped into, and adjusts pH value；
（5）Mixed bacteria liquid quantitatively injects；
3. desulphurization reaction
（1）Persistently stir 24 ~ 48 hours；
（2）Persistently it is aerated 24 ~ 48 hours；
（3）PLC system monitors slurry pH value, and timely adjustment automatically；Detect slurry temperature；
（4）Timing sampling monitoring slurries Fe3+Concentration；
4. slurries filter and coal dust washing and drying
Open slurries pump and the slurries after reaction desulfuration are delivered to filter, the coal dust filtered out again dry after rinsing machine by drying machine
Desulfurized coal is obtained, filtrate is through taking acid to take iron flask Returning reactor；
5. filtrate takes acid to take iron
Caused sulfuric acid in course of reaction, the pH value 1 ~ 2 needed according to reaction, take iron flask true according to the detected value of pH value taking acid
Determine the taking-up of sulfuric acid；Slurries sampling detection Fe3+Concentration value takes out ferric sulfate in good time.
The beneficial effects of the invention are as follows：
The invention provides a kind of coal bio-desulfurization device and its application method, can remove coal by the method for biological respinse
In inorganic sulfur, inorganic sulfur removal rate about 85 ~ 95%, sweetening process is small without destruction, reaction desulfuration time 24 ~ 48 to texture of coal
When, desulfurization time significantly shortens, and desulfuration efficiency is high, and coal slurry, coal washing water circulation use, and three-waste free discharge, are suitable for industrializing
Process for producing；About 50 yuan/ton of desulphurization cost, about 150 ~ 200 yuan/ton of sulphur coal price is improved, benefit is good, there is preferable popularization
Value.
Brief description of the drawings
Fig. 1 is the device composition schematic diagram of the present invention；
In figure：1. match somebody with somebody bacterium tank, 2. bacterium solution measuring pumps, 3. pH value measuring instruments, 4. exhaust outlets, 5. agitators, 6. bioreactors,
7. conveyer, 8. water-delivery pumps, 9. pulverizers, 10. fluid level transmitters, 11. sample taps, 12. take acid to take iron flask, 13. drying machines
14. rinsing machine, 15. filters, 16. air blowers, 17. slurries pumps, 18.PLC control systems, 19. aeration coil pipes,
20. temperature transmitter, 21. sulfuric acid measuring pumps, 22. sulfuric acid storage tanks, 23. rhodococcus erythropolis culture tanks, 24. ferrous oxide sulphur
Bacillus culture tank.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings：
A kind of coal bio-desulfurization device and its application method, pH is blended in using rhodococcus erythropolis and Thiobacillus ferrooxidans
Pass through the inorganic sulfur in the method removing coal of biological respinse in the sulphuric acid environment of value 1 ~ 2.Feed coal is crushed in pulverizer 9
80 ~ 120 mesh, be transported to through conveyer 7 in bioreactor 6, the water being pumped into water-delivery pump 8 be made into Coal Quality concentration for 25 ~
35% slurries；Sulfuric acid storage tank 22 adds dilute sulfuric acid into bioreactor 6 through sulfuric acid measuring pump 21, and adjust pH value for 1.0 ~
2.0；Thiobacillus ferrooxidans is with rhodococcus erythropolis respectively from Thiobacillus ferrooxidans culture tank 24 and rhodococcus erythropolis culture tank
23 are added to bacterium tank 1, and the inoculation total amount of two kinds of bacterium is 2 × 108 ~ 5 × 108/mL, and total amount ratio corresponding to two strains is 1:
2 ~ 3, then it is pumped into through bacterium solution measuring pump 2 in bioreactor 6；Then stirring reaction is continued by agitator 5, makes coal in slurries
Even suspension；And air is blasted by the continuous uniform of air blower 16, and sprayed through being aerated coil pipe 19, air is uniformly divided in slurries
Cloth；Sustained response 24 ~ 48 hours under normal temperature, reacted slurries are transported to filter 15 through slurries pump 17 and are dehydrated, coal after desulfurization
Washed for rinsing machine 14 is delivered to, then the drying desulfurized coal of drying machine 13；Slurries filtrate is pumped up to taking acid to take iron flask 22,
The concentration needed in visual response device takes acid to take iron, is then back in bioreactor 6.Sweetening process, without destruction, takes off to texture of coal
The sulphur time is short, and desulfuration efficiency is high, and coal slurry recycles, three-waste free discharge, is suitable for industrial treatment production.
A kind of coal bio-desulfurization device and its application method, using following operating procedure and method：
1. prepare before desulfurization
（1）Thiobacillus ferrooxidans and rhodococcus erythropolis culture, the preparation of mixed bacteria liquid in bacterium tank 1, two strains are corresponding
Total amount ratio be 1:2~3；
（2）Sulfuric acid deposit and dilution；
（3）From the water filling into reactor 6 of water-delivery pump 8, to suitable location；
（4）Raw coal is crushed to 80 ~ 120 mesh
2. River Bank Stability
（1）Air blower 16 is opened to be aerated；
（2）Turn on agitator 5；
（3）Open the input of the coal dust of conveyer 7；
（4）Sulfuric acid is quantitative to be pumped into through sulfuric acid measuring pump 21, is monitored slurry pH value by pH value measuring instrument 3, is adjusted by PLC control system 18
Slurry pH value in section control reactor 6；
（5）Mixed bacteria liquid is quantitatively injected by the adjustment control bacterium solution measuring pump 2 of PLC control system 18, inoculation overall control lives 2 ×
108 ~ 5 × 108/mL；
3. desulphurization reaction
（1）Agitator 5 persistently stirs 24 ~ 48 hours；
（2）Air blower 16 is aerated coil pipe 19 and is persistently aerated 24 ~ 48 hours；
（3）PLC control system monitors slurry pH value, and timely adjustment automatically；
（4）The sampling monitoring slurries Fe of sample tap 113+Concentration, timing sampling monitoring slurries Fe3+Concentration；
4. slurries filter and coal dust washing and drying
Open slurries pump 17 and the slurries after reaction desulfuration are delivered to filter 15, the coal dust filtered out is again through dry after rinsing machine 14
Dry machine 13 is dried to obtain desulfurized coal, and filtrate is through taking acid to take the Returning reactor 6 of iron flask 22；Washing water section is supplemented to slurries, part
Proper treatment Posterior circle uses；
5. filtrate takes acid to take iron
Caused sulfuric acid in course of reaction, the pH value 1-2 needed according to reaction, detected value of the iron flask 22 according to pH value is taken taking acid
Determine the taking-up of sulfuric acid；Slurries sampling detection Fe3+Concentration value takes out ferric sulfate in good time, is then back to reactor 6 and recycles.
The present invention is not limited to the above embodiments, and without departing from the spirit and scope of the present invention, the present invention is also
Various changes and modifications are had, these changes and improvements are both fallen within protection scope of the present invention.
Claims (3)
1. a kind of coal bio-desulfurization device and its application method, it is characterized in that, invent the desulfurizer of design mainly have with bacterium tank,
Bacterium solution measuring pump, pH value measuring instrument, agitator, bioreactor, conveyer, water-delivery pump, pulverizer, fluid level transmitter, take acid
Take iron flask, drying machine, rinsing machine, filter, air blower, slurries pump, PLC control system, aeration coil pipe, temperature transmitter,
Sulfuric acid measuring pump, sulfuric acid storage tank, rhodococcus erythropolis culture tank and Thiobacillus ferrooxidans culture tank composition.
2. a kind of coal bio-desulfurization device as claimed in claim 1 and its application method, it is characterized in that, described device is using red
Flat Rhodococcus sp is blended in the sulphuric acid environment of pH value 1 ~ 2 with Thiobacillus ferrooxidans and removes the nothing in coal by biological respinse method
Machine sulphur；
Desulfurizer flow is that feed coal is crushed to 80 ~ 120 mesh in pulverizer, and bioreactor is transported to through conveyer
Interior, it is 25 ~ 35% slurries to be made into Coal Quality concentration with the water that water-delivery pump is pumped into；Sulfuric acid storage tank is anti-to biology through sulfuric acid measuring pump
Addition dilute sulfuric acid in device is answered, and adjusts pH value as 1.0 ~ 2.0；Thiobacillus ferrooxidans is with rhodococcus erythropolis respectively from ferrous oxide
Thiobacillus culture tank is added to bacterium tank 1 with rhodococcus erythropolis culture tank, and the inoculation total amount of two kinds of bacterium is 2 × 108 ~ 5 × 108
Individual/mL, total amount ratio corresponding to two strains are 1:2 ~ 3, then it is pumped into through bacterium solution measuring pump in bioreactor；Then by stirring
Device continues stirring reaction, makes coal even suspension in slurries；And air is blasted by air blower continuous uniform, and through being aerated coil pipe spray
Go out, air is uniformly distributed in slurries；Sustained response 24 ~ 48 hours under normal temperature, reacted slurries were pumped into through slurries
Filter is dehydrated, and coal is standby after desulfurization delivers to rinsing machine washing, then drying machine drying desulfurized coal；Slurries filtrate be pumped up to
Acid is taken to take iron flask, the concentration needed in visual response device takes acid to take iron, is then back in bioreactor；Sweetening process is to texture of coal
Without destruction, desulfurization time is short, and desulfuration efficiency is high, and coal slurry recycles, three-waste free discharge, is suitable for industrial treatment production.
3. a kind of coal bio-desulfurization device as claimed in claim 1 and its application method, it is characterized in that, invent the desulfurization of design
Device uses following operating procedure and method：
First, prepare before desulfurization
（1）Thiobacillus ferrooxidans and rhodococcus erythropolis culture, the preparation with bacterium tank mixed bacteria liquid, total amount corresponding to two strains
Than for 1:2~3；
（2）Sulfuric acid deposit and dilution；
（3）The water filling into reactor from water-delivery pump, to suitable location；
（4）Raw coal is crushed to 80 ~ 120 mesh
2nd, River Bank Stability
（1）Open air blower aeration；
（2）Turn on agitator；
（3）Open the input of conveyer coal dust；
（4）Sulfuric acid is quantitative to be pumped into through sulfuric acid measuring pump, is monitored slurry pH value by pH value measuring instrument, is adjusted and controlled by PLC control system
Slurry pH value in reactor processed；
（5）Mixed bacteria liquid is quantitatively injected by PLC control system adjustment control bacterium solution measuring pump, inoculation overall control lives 2 × 108 ~ 5
× 108/mL；
3rd, desulphurization reaction
（1）Agitator persistently stirs 24 ~ 48 hours；
（2）Air blower aeration coil pipe is persistently aerated 24 ~ 48 hours；
（3）PLC control system monitors slurry pH value, and timely adjustment automatically；
（4）The sampling monitoring slurries Fe of sample tap 113+Concentration, timing sampling monitoring slurries Fe3+Concentration；
4th, slurries filtering and coal dust washing and drying
Open slurries pump and the slurries after reaction desulfuration are delivered to filter, the coal dust filtered out is done after rinsing machine through drying machine again
Dry to obtain desulfurized coal, filtrate is through taking acid to take iron flask Returning reactor；Washing water section is supplemented to slurries, is followed after the proper treatment of part
Ring uses；
5th, filtrate takes acid to take iron
Caused sulfuric acid in course of reaction, the pH value 1-2 needed according to reaction, according to the detected value of pH value in taking acid to take iron flask
Determine the taking-up of sulfuric acid；Slurries sampling detection Fe3+Concentration value takes out ferric sulfate in good time, is then back to reactor cycles use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710907596.7A CN107557106A (en) | 2017-09-29 | 2017-09-29 | A kind of coal bio-desulfurization device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710907596.7A CN107557106A (en) | 2017-09-29 | 2017-09-29 | A kind of coal bio-desulfurization device and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107557106A true CN107557106A (en) | 2018-01-09 |
Family
ID=60983718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710907596.7A Pending CN107557106A (en) | 2017-09-29 | 2017-09-29 | A kind of coal bio-desulfurization device and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107557106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112592748A (en) * | 2020-11-25 | 2021-04-02 | 辽宁工程技术大学 | Device for removing sulfur in coal by microorganisms |
| CN113731331A (en) * | 2021-09-08 | 2021-12-03 | 扬州青云泰泽环保科技有限公司 | Wet process biological desulfurization reaction unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607226A (en) * | 2009-07-15 | 2009-12-23 | 北京科技大学 | A kind of technology of utilizing sulphur in Biological Pretreatment and the flotation removing coal slime |
| CN103706460A (en) * | 2013-12-11 | 2014-04-09 | 中国铝业股份有限公司 | Bauxite desulphurization method and device |
| CN105366826A (en) * | 2015-11-25 | 2016-03-02 | 广西阔能霸能源科技开发有限责任公司 | High-efficiency biological desulfurization method |
| CN106398799A (en) * | 2016-10-24 | 2017-02-15 | 马鞍山科宇环境工程有限公司 | Method for biologically desulfurizing coal for power plants |
| CN106433855A (en) * | 2016-10-28 | 2017-02-22 | 中南大学 | Efficient coal desulfurization method by flotation and biological coupling |
-
2017
- 2017-09-29 CN CN201710907596.7A patent/CN107557106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607226A (en) * | 2009-07-15 | 2009-12-23 | 北京科技大学 | A kind of technology of utilizing sulphur in Biological Pretreatment and the flotation removing coal slime |
| CN103706460A (en) * | 2013-12-11 | 2014-04-09 | 中国铝业股份有限公司 | Bauxite desulphurization method and device |
| CN105366826A (en) * | 2015-11-25 | 2016-03-02 | 广西阔能霸能源科技开发有限责任公司 | High-efficiency biological desulfurization method |
| CN106398799A (en) * | 2016-10-24 | 2017-02-15 | 马鞍山科宇环境工程有限公司 | Method for biologically desulfurizing coal for power plants |
| CN106433855A (en) * | 2016-10-28 | 2017-02-22 | 中南大学 | Efficient coal desulfurization method by flotation and biological coupling |
Non-Patent Citations (4)
| Title |
|---|
| 康文泽等: "《超声波强化煤浮选的脱硫降灰》", 31 December 2009, 中国矿业大学出版社 * |
| 张东晨: "《微生物脱除煤炭中的黄铁矿硫》", 30 June 2005, 合肥工业大学出版社 * |
| 强鹏翔等: "煤炭微生物脱硫技术", 《山西煤炭》 * |
| 林海: "《环境工程微生物学》", 31 May 2014, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112592748A (en) * | 2020-11-25 | 2021-04-02 | 辽宁工程技术大学 | Device for removing sulfur in coal by microorganisms |
| CN113731331A (en) * | 2021-09-08 | 2021-12-03 | 扬州青云泰泽环保科技有限公司 | Wet process biological desulfurization reaction unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805689B (en) | Apart-shaped anaerobic digester for producing biogas | |
| US8765449B2 (en) | Three stage, multiple phase anaerobic digestion system and method | |
| CN104261907A (en) | Dry anaerobic treatment method and dry anaerobic treatment device for kitchen garbage | |
| CN104692847A (en) | Method for producing high-macroelement liquid organic special fertilizer | |
| CN102311924B (en) | Method for open-type culture of microalgae | |
| CN110499339A (en) | The method for promoting anaerobic digestion methane phase efficiency | |
| CN105820943B (en) | A kind of multi-stage gas-liquid joint stirring Venturi tube-CSTR reaction units | |
| CN107557106A (en) | A kind of coal bio-desulfurization device and its application method | |
| CN101705126B (en) | In-situ biogas coupling type long-acting desulfurizer | |
| CN105817129A (en) | Device and method for removing hydrogen sulfide in marsh gas with microorganisms | |
| CN205730825U (en) | A kind of device utilizing microorganism removing hydrogen sulfide in methane | |
| CN202945237U (en) | Efficient two-phase anaerobic fermentation device | |
| CN101705249B (en) | High-value utilization process for in-situ biogas desulfurization comprehensive treatment | |
| CN105776466B (en) | A kind of purification method of sodium sulfate wastewater | |
| CN106975342A (en) | A kind of biological desulphurization system and biological flue gas sulfur method | |
| CN106167763B (en) | The anaerobic culture device of liquid humid acid fertilizer bacterium | |
| CN206385161U (en) | A kind of anaerobic culture device of liquid humid acid fertilizer bacterium | |
| CN102311923B (en) | Microalgae cultivation method | |
| CN106495390B (en) | A kind of processing method of acid waste water | |
| CN1131179C (en) | Bio-chemical process for treating waste liquid of molasses alcohol | |
| CN101423846A (en) | Non-pollution marsh gas fermentation processing method and apparatus thereof | |
| CN207313378U (en) | Micropollutant water repairs all-in-one machine | |
| CN107586581A (en) | A kind of coal desulfurization bioreactor | |
| CN107099460B (en) | Enrichment device and method for spraying airlift anaerobic methane oxidizing microorganisms | |
| CN107287249A (en) | Technique and system based on Anammox coupling and intensifying reclaiming organic waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |
|
| RJ01 | Rejection of invention patent application after publication |