CN107619153A - A kind of liquor production wastewater biodegradation system Construction method - Google Patents
A kind of liquor production wastewater biodegradation system Construction method Download PDFInfo
- Publication number
- CN107619153A CN107619153A CN201710872840.0A CN201710872840A CN107619153A CN 107619153 A CN107619153 A CN 107619153A CN 201710872840 A CN201710872840 A CN 201710872840A CN 107619153 A CN107619153 A CN 107619153A
- Authority
- CN
- China
- Prior art keywords
- fish pond
- fish
- water
- pond
- liquor production
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The present invention relates to a kind of liquor production wastewater biodegradation system Construction method, this system is set up by the nutrient in liquor production wastewater, pool carp louse fish vitality, degradation capability is strong, an important part using pool carp louse fish as this system, composition in degradation of white spirit production waste water that can be effective and lasting, it is an object of the present invention to disclose a kind of liquor production wastewater biodegradation system Construction method, solves liquor production wastewater by building a set of biodegradable system, this set biodegradation system Construction cost is relatively low, and there is the good ecological balance, it can recycle.
Description
Technical field
The present invention relates to a kind of wastewater biological degeneration system building method, and in particular to a kind of liquor production wastewater biology drop
Solve system Construction method.
Background technology
Liquor production wastewater is a kind of high-concentration organic industrial waste water, caused bubble paddy mainly during brewed spirit
Water, distillation bottom pot water, fermentation french drain water and ground are gone with wine storehouse percolating water composition, liquor production wastewater COD (Chemical Oxygen
Demand, COD), BOD (Biochemical Oxygen Demand, biochemical oxygen demand (BOD)) and SS (Suspended
Solids, suspension) value height, complicated component, mainly contain low-carbon alcohols (ethanol, butanol, amylalcohol etc.), aliphatic acid, ammonia acid etc.
Material, belongs to high concentrated organic wastewater, and organic pollution concentration is high in liquor production wastewater, suspension content is high, in acidity, place
It is larger to manage difficulty, serious pollution can be brought to environment if direct discharge.
Pool carp louse fish vitality is strong, can survive in the inviable small size pond of general fish, hypoxemia, shallow water, acidity or by
In the waters of pollution, (general fish require that pH value is more than 5.6 in water) the energy normal life in PH4.8 sour environment,
It can also be survived in the smelly water body of corruption, moreover it is possible to which the Chi Keng entered with current including septic tank survives, and pool carp louse fish energy
Most of material is enough absorbed, and is degraded.
Application publication number CN102659281A, application publication date 2012-09-12, it is entitled《The processing of liquor production wastewater
Method》Invention, step includes：Wastewater pH is adjusted to neutrality, coagulating sedimentation tentatively removes the removal of impurity, anaerobic hydrolysis, coagulation air-float
Processing, Aerobic biological process, water outlet qualified discharge after perpendicular stream precipitation and sand filtration.
Application publication number CN102659285A, application publication date 2012-05-15, it is entitled《Liquor production wastewater integration
Processing unit》Invention, device includes by technological process：Flocculation stirring area, sloping plate deposition district, hydrolysis acidification area, air flotation zone, life
Thing catalytic oxidation area, perpendicular stream settling zone, sand filtration area.
Currently used liquor production wastewater biodegrading process is to neutralize to adjust using chemistry, and regulation is neutralized not only using chemistry
Only complex process, and cost occupy it is high, although can caused waste water during mass disposal liquor production, be not suitable for
For medium-sized and small enterprises.
The content of the invention
It is a set of by building it is an object of the present invention to disclose a kind of liquor production wastewater biodegradation system Construction method
Biodegradable system solves liquor production wastewater, and this set biodegradation system Construction cost is relatively low, and have good life
State balance, it can recycle.
Realizing the technical scheme of liquor production wastewater biodegradation system Construction method of the present invention is：
A kind of liquor production wastewater biodegradation system Construction method, it comprises the following steps：
1) fish pond sterilizes：A fish pond is built, every 667 square metres carry out full fish pond with 80~100 kilograms of quick lime and splash
Sterilization, fish pond construction are used again after completing ten days；
2) dilute：Liquor production wastewater is pressed 1：3~5 ratio, which is diluted, to be put into the fish pond by sterilization,
One wastewater discharge pipe and a dilution adding tube are installed, the wastewater discharge pipe is provided with the first constant displacement pump, described in fish pond
Dilution adding tube is provided with the second constant displacement pump, and first constant displacement pump connects the first motor, the second constant displacement pump connection second
Motor, pass through the adding proportion of first motor control waste water different from the rotating speed of second motor and dilution, white wine
Production waste water includes bubble paddy water, distillation bottom pot water, fermentation french drain water and ground and gone with wine storehouse percolating water；
3) preliminary biological oxidation：Liquor production wastewater after dilution is rested in fish pond 5~10 days, allow can sink solid precipitation
To the bottom in fish pond, anaerobism mud is formed, then is decomposed by anaerobic bacteria, allows solable matter to be dissolved in water, is led to
The degradation of microorganism is crossed, organic macromolecule is degraded to organic molecule, and produces algae, is further degraded by algae
Organic molecule；
4) biological cleaning：Wait more than half area of fish pond adrift algae when, to fish pond launch the first density predetermined amount
Pool carp louse fry, pool carp louse fry using float microorganism, algae as food, absorb most of inorganic matter, and be converted to excrement；
6) sampling detection：From after being launched 50 days pool carp louse fry, 20~50 pool carp louse fishes, record are caught into fish pond at random
The length of every pool carp louse fish；
7) water hyacinth is launched：It is all higher than when catching every pool carp louse fish length in 20~50 pool carp louse fishes into fish pond at random
After 20CM, 8~10 cymbalaria halerpestes herbs are put into fish pond；
8) complete to build：When the wild frog in fish pond is more than ten, liquor production wastewater biodegradation system is completed
Build, and periodically catch a certain amount of pool carp louse fish, pool carp louse fish of the length more than 70CM is twisted into meat pulp as feeding by meat grinder
Material is launched into fish pond again；
9) waste water re-uses：Periodic detection Water quality, after Water quality is up to standard, the water in discharge unit fish pond,
Agricultural irrigation is carried out after the water in the part fish pond is mixed with mountain spring water, and adds waste water into fish pond again.
Further, the first density predetermined amount is every cubic metre of a tail.
Further, the long 19.3m in the fish pond, wide 16.3m, depth of water 1.5m.
Further, the bottom of pond in fish pond lays cement, and the bottom of pond in fish pond tilts to drainage position, the Chi Jiao's, fish pond in fish pond
Pool wall digs several culverts, or the Chi Zhongchen in fish pond sets soil pipe or plastics sebific duct.
Further, the bottom in the fish pond is provided with drainpipe, and drainpipe pool carp louse fish of setting up defences escapes facility.
Further, being surrounded by for the fish pond is fenced up with the mesh sheet that mesh is 0.2~0.4 centimetre, the mesh sheet
Net it is high 80 centimetres, the bottom in the fish pond 20 centimeters of burying are embedded with the mesh sheet, the mesh sheet of fish pond surrounding and fish pond bottom
Mesh sheet be connected.
Further, there is water hyacinth by manual control pond water surface half area, and in one jiao of cultivation water in pond
Cucurbit.
Beneficial effects of the present invention are：The present invention just carries out disinfection before biodegradable system is built to fish pond, prevent by
Cause biodegradable system Construction to fail in viral factor, liquor production wastewater and diluted process, entered using constant displacement pump
Row flow is controlled, and can be precisely controlled liquor production wastewater dilution ratio, reasonably put into cymbalaria halerpestes herb, and one is established for pool carp louse fish
Individual good shade environment, and by manual control, avoid water hyacinth overpreading, destroy the life of whole biodegradable system
State balances, and periodically kills the excessive pool carp louse fish of some volumes, the degradation capability of whole biodegradable system is ensure that, because body
Not only degradation capability dies down the excessive pool carp louse fish of product, and the small fish that can fight at close quarters, and the liquor production after periodically discharge is biodegradable gives up
Water, purpose is re-used in crop irrigation, reaching waste water.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment：A kind of liquor production wastewater biodegradation system Construction method, it comprises the following steps：
1) fish pond sterilizes：Build what a fish pond, the long 19.3m in the fish pond, wide 16.3m, depth of water 1.5m, every 667 squares
Rice carries out full fish pond with 80~100 kilograms of quick lime and splashed sterilization, and fish pond is used for ten days again afterwards；
2) dilute：Liquor production wastewater is pressed 1：3~5 ratio is diluted in the fish pond be put into and disinfected, in fish
One wastewater discharge pipe and a dilution adding tube are installed, the wastewater discharge pipe is provided with the first constant displacement pump, described dilute in the pool
Release liquid adding tube and be provided with the second constant displacement pump, first constant displacement pump connects the first motor, the electricity of the second constant displacement pump connection second
Machine, pass through the adding proportion of the first motor control waste water different from the rotating speed of the second motor and dilution, liquor production wastewater bag
Bubble paddy water, distillation bottom pot water, fermentation french drain water and ground is included to go with wine storehouse percolating water；
3) preliminary biological oxidation：Liquor production wastewater after dilution is rested in fish pond 5~10 days, and solid can be sunk by, which allowing, sinks
Form sediment to the bottom in fish pond, form anaerobism mud, then decomposed by anaerobic bacteria, allow solable matter to be dissolved in water
In, by the degradation of microorganism, most of organic macromolecule is degraded to organic molecule, and algae is produced, pass through algae
Class is further degraded organic molecule；
4) biological cleaning：Wait more than half area of fish pond adrift algae when, to fish pond launch the first density predetermined amount
Pool carp louse fry, the first density predetermined amount is every cubic metre of a tail, without putting into any feed, pool carp louse fry into fish pond
To float microorganism, algae absorbs most of inorganic matter as food, and these waste materials are converted into excrement；
6) sampling detection：From after being launched 50 days pool carp louse fry, 20~50 pool carp louse fishes, record are caught into fish pond at random
The length of every pool carp louse fish；
7) water hyacinth is launched：It is all higher than when catching every pool carp louse fish length in 20~50 pool carp louse fishes into fish pond at random
After 20CM, 8~10 cymbalaria halerpestes herbs are put into fish pond, and the position and face of water hyacinth distribution are controlled during cultivation
Product, have a water hyacinth by manual control pond water surface half area, and in pond one jiao cultivate some water hyacinths, avoid water calabash
Reed overpreading, cause no enough sunlight fish ponds, algae is not easy to generate, and influences the balance of the whole ecosystem；
8) complete to build：Treat there is the wild bar of frog more than ten in fish pond, whole liquor production wastewater biodegradation system is completed
Build, reach the ecological balance, then need periodically to catch a certain amount of pool carp louse fish, pool carp louse fish of the length more than 70CM is passed through into strand
Meat machine is twisted into meat pulp and launched again into fish pond as feed；
9) waste water re-uses：Periodic detection Water quality, after Water quality is up to standard, the water in discharge unit fish pond,
And agricultural irrigation is carried out after the water in this part fish pond is mixed with mountain spring water, waste water is then added into fish pond again.
The bottom of pond in fish pond lays cement, and the bottom of pond in fish pond tilts to drainage position, and the pool wall chisel of Chi Jiao, fish pond in fish pond are several
Culvert, or Chi Zhongchen in fish pond sets soil pipe or plastics sebific duct, the bottom in the fish pond are provided with drainpipe, the drainpipe is set
Anti- pool carp louse fish is escaped facility, and being surrounded by for the fish pond is fenced up with the mesh sheet that mesh is 0.2~0.4 centimetre, the mesh sheet
Net it is high 80 centimetres, the bottom in the fish pond 20 centimeters of burying are embedded with the mesh sheet, the mesh sheet of fish pond surrounding and fish pond bottom
Mesh sheet be connection, to prevent the enemies such as snake, the frog enter.
Beneficial effects of the present invention are：The present invention just carries out disinfection before biodegradable system is built to fish pond, prevent by
Cause biodegradable system Construction to fail in viral factor, liquor production wastewater and diluted process, entered using constant displacement pump
Row flow is controlled, and can be precisely controlled liquor production wastewater dilution ratio, reasonably put into cymbalaria halerpestes herb, and one is established for pool carp louse fish
Individual good shade environment, and by manual control, avoid water hyacinth overpreading, destroy the life of whole biodegradable system
State balances, and periodically kills the excessive pool carp louse fish of some volumes, the degradation capability of whole biodegradable system is ensure that, because body
Not only degradation capability dies down the excessive pool carp louse fish of product, and the small fish that can fight at close quarters, and the liquor production after periodically discharge is biodegradable gives up
Water, purpose is re-used in crop irrigation, reaching waste water.
Claims (7)
- A kind of 1. liquor production wastewater biodegradation system Construction method, it is characterised in that comprise the following steps：1）Fish pond sterilizes：Build a fish pond, every 667 square metres carry out full fish pond with 80~100 kilograms of quick lime and splash sterilization, Fish pond construction is used again after completing ten days；2）Dilution：Liquor production wastewater is pressed 1：3 ~ 5 ratio, which is diluted, to be put into the fish pond by sterilization, in fish pond One wastewater discharge pipe of installation and a dilution adding tube, the wastewater discharge pipe are provided with the first constant displacement pump, the dilution Adding tube is provided with the second constant displacement pump, and first constant displacement pump connects the first motor, and second constant displacement pump connects the second motor, leads to Cross the adding proportion of first motor control waste water different from the rotating speed of second motor and dilution, liquor production wastewater Gone with wine storehouse percolating water including bubble paddy water, distillation bottom pot water, fermentation french drain water and ground；3）Preliminary biological oxidation：Liquor production wastewater after dilution is rested in fish pond 5 ~ 10 days, and solid can be sunk by, which allowing, is deposited to fish The bottom on the pool, anaerobism mud is formed, then decomposed by anaerobic bacteria, allow solable matter to be dissolved in water, by micro- The degradation of biology, organic molecule is degraded to by organic macromolecule, and produces algae, is further degraded by algae organic Small molecule；4）Biological cleaning：Wait more than half area of fish pond adrift algae when, to fish pond launch the first density predetermined amount the pool Carp louse fry, pool carp louse fry absorb most of inorganic matter, and be converted to excrement to float microorganism, algae as food；6）Sampling detection：From after being launched 50 days pool carp louse fry, 20 ~ 50 pool carp louse fishes are caught into fish pond at random, record every pool The length of carp louse fish；7）Water hyacinth is launched：When at random into fish pond catch 20 ~ 50 pool carp louse fishes in every pool carp louse fish length be all higher than 20CM it Afterwards, 8 ~ 10 cymbalaria halerpestes herbs are put into fish pond；8）Complete to build：When the pool carp louse fish in fish pond is more than 200, liquor production wastewater biodegradation system is completed to build, And a certain amount of pool carp louse fish is periodically caught, pool carp louse fish of the length more than 70CM is twisted into meat pulp as feed again by meat grinder Launch into fish pond；9）Waste water re-uses：Periodic detection Water quality, after Water quality is up to standard, the water in discharge unit fish pond, by this The water in part fish pond carries out agricultural irrigation after being mixed with mountain spring water, and adds waste water into fish pond again.
- 2. liquor production wastewater biodegradation system Construction method according to claim 1, it is characterised in that described first is close Degree predetermined amount is every cubic metre of a tail.
- 3. liquor production wastewater biodegradation system Construction method according to claim 1, it is characterised in that the fish pond length 19.3m, wide 16.3m, depth of water 1.5m.
- 4. liquor production wastewater biodegradation system Construction method according to claim 1, it is characterised in that the bottom of pond in fish pond Laying cement, the bottom of pond in fish pond tilts to drainage position, and the pool wall of Chi Jiao, fish pond in fish pond dig several culverts, or in fish pond Chi Zhongchen sets soil pipe or plastics sebific duct.
- 5. liquor production wastewater biodegradation system Construction method according to claim 1, it is characterised in that the fish pond Bottom is provided with drainpipe, and drainpipe pool carp louse fish of setting up defences escapes facility.
- 6. liquor production wastewater biodegradation system Construction method according to claim 1, it is characterised in that the fish pond It is surrounded by and is fenced up with the mesh sheet that mesh is 0.2~0.4 centimetre, the net of the mesh sheet is high 80 centimetres, the bottom in the fish pond 20 centimeters of burying are embedded with the mesh sheet, and the mesh sheet of fish pond surrounding is connected with the mesh sheet of fish pond bottom.
- 7. liquor production wastewater biodegradation system Construction method according to claim 1, it is characterised in that pass through people's industry control Water surface half area in pond processed has water hyacinth, and one jiao in pond cultivates water hyacinth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872840.0A CN107619153B (en) | 2017-09-25 | 2017-09-25 | Construction method of liquor production wastewater biodegradation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872840.0A CN107619153B (en) | 2017-09-25 | 2017-09-25 | Construction method of liquor production wastewater biodegradation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107619153A true CN107619153A (en) | 2018-01-23 |
| CN107619153B CN107619153B (en) | 2020-09-22 |
Family
ID=61090996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710872840.0A Active CN107619153B (en) | 2017-09-25 | 2017-09-25 | Construction method of liquor production wastewater biodegradation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107619153B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247167A (en) * | 1999-06-23 | 2000-03-15 | 闵学书 | Biological chain treatment method for lake water eutrophication |
| US6869530B1 (en) * | 2004-09-07 | 2005-03-22 | Alberto J. Venezia | Multifunctional internal marine aquarium filter |
| CN1609096A (en) * | 2003-10-20 | 2005-04-27 | 林坤华 | Continuous amino acid producing process with fish processing waste water |
| CN202026704U (en) * | 2010-12-29 | 2011-11-09 | 广东省农业科学院兽医研究所 | Culture system capable of using aquatic plants and effective microorganisms to purify culture water |
| CN102659285A (en) * | 2012-05-15 | 2012-09-12 | 重庆晨鸣水处理设备有限公司 | Integrated white wine production waste water treatment device |
| CN103708596A (en) * | 2014-01-07 | 2014-04-09 | 中南民族大学 | Method for enhanced removal and recovery of nitrogen and phosphorus in traditional white spirit waste water treatment process |
| CN106508735A (en) * | 2016-10-12 | 2017-03-22 | 宾阳县阳光农村产业农民专业合作社 | Method for three-dimensional mixed culture of escargots and fish |
| CN206447726U (en) * | 2016-12-22 | 2017-08-29 | 上海复旦水务工程技术有限公司 | A kind of Production of Livestock and Poultry wastewater treatment equipment |
| CN108793646A (en) * | 2018-09-10 | 2018-11-13 | 河北雄安德荫源环境科技有限公司 | A kind of landscape type domestic sewage ecologically treating system |
-
2017
- 2017-09-25 CN CN201710872840.0A patent/CN107619153B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247167A (en) * | 1999-06-23 | 2000-03-15 | 闵学书 | Biological chain treatment method for lake water eutrophication |
| CN1609096A (en) * | 2003-10-20 | 2005-04-27 | 林坤华 | Continuous amino acid producing process with fish processing waste water |
| US6869530B1 (en) * | 2004-09-07 | 2005-03-22 | Alberto J. Venezia | Multifunctional internal marine aquarium filter |
| CN202026704U (en) * | 2010-12-29 | 2011-11-09 | 广东省农业科学院兽医研究所 | Culture system capable of using aquatic plants and effective microorganisms to purify culture water |
| CN102659285A (en) * | 2012-05-15 | 2012-09-12 | 重庆晨鸣水处理设备有限公司 | Integrated white wine production waste water treatment device |
| CN103708596A (en) * | 2014-01-07 | 2014-04-09 | 中南民族大学 | Method for enhanced removal and recovery of nitrogen and phosphorus in traditional white spirit waste water treatment process |
| CN106508735A (en) * | 2016-10-12 | 2017-03-22 | 宾阳县阳光农村产业农民专业合作社 | Method for three-dimensional mixed culture of escargots and fish |
| CN206447726U (en) * | 2016-12-22 | 2017-08-29 | 上海复旦水务工程技术有限公司 | A kind of Production of Livestock and Poultry wastewater treatment equipment |
| CN108793646A (en) * | 2018-09-10 | 2018-11-13 | 河北雄安德荫源环境科技有限公司 | A kind of landscape type domestic sewage ecologically treating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107619153B (en) | 2020-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10982400B2 (en) | Structure for an aquatic space and method for conserving large bodies of water | |
| CN108975614B (en) | Operation method of biogas slurry ecological treatment culture system | |
| CN104211259A (en) | Multifunctional ecological purification system for large-scale circulation breeding water | |
| WO2006042371A1 (en) | An aquatic-culture system | |
| CN105836969B (en) | A kind of Wastewater from Pig Farm processing method | |
| CN110143737A (en) | A kind of river Ecology original position dredging restorative procedure | |
| CN106007211A (en) | Farm waste water treatment method | |
| KR0174365B1 (en) | Method and apparatus for removing algae | |
| CN209652083U (en) | Mountain and forest region breeding wastewater zero-discharge treatment system | |
| CN102464404A (en) | Method and system for remediation and treatment of polluted river water | |
| CN101445297A (en) | Method for advanced treatment of papermaking wastewater | |
| CN109892232A (en) | Aggregate species cultivating system and its application in scale animal and poultry cultivation treatment for cow manure | |
| CN110066068A (en) | A kind of city eutrophication river corridor restoration method | |
| CN110663623A (en) | Comprehensive utilization method of coal mine high-salt mine water for desert paddy field and mariculture water supply | |
| WO2017216666A1 (en) | Process and system for sewage water treatment and dispersal | |
| CN111072219A (en) | Method for controlling eutrophication of wetland pre-pond | |
| CN109399798A (en) | A kind of precipitating algae pond-helotisn ecology board slot-microorganism filter tank water treatment system and processing method | |
| CN204737859U (en) | Handle integrated constructed wetland structure of aquaculture waste water | |
| Alade et al. | Purification of domestic sewage by water-hyacinth (Eichhornia crassipes) | |
| CN109626595B (en) | Water quality purifying microorganism ecological unit, water quality purifying microorganism ecological system and method thereof | |
| CN101643276A (en) | Alga combined pond device | |
| CN207276426U (en) | Sewage-treatment plant with advection air supporting sedimentation basin and artificial wet land system | |
| KR100928087B1 (en) | Apparatus for immobilizing photosynthetic microorganism and immobilization method using the same | |
| CN108623087B (en) | Process for treating bad water body and deep water culture | |
| CN109287538A (en) | A kind of crab cultivation water pollution control system and its application |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |