CN1230525A - Process of treatment for waste smell by using microbe fixed cillium ball, and bio-reactor therefor - Google Patents
Process of treatment for waste smell by using microbe fixed cillium ball, and bio-reactor therefor Download PDFInfo
- Publication number
- CN1230525A CN1230525A CN98124335A CN98124335A CN1230525A CN 1230525 A CN1230525 A CN 1230525A CN 98124335 A CN98124335 A CN 98124335A CN 98124335 A CN98124335 A CN 98124335A CN 1230525 A CN1230525 A CN 1230525A
- Authority
- CN
- China
- Prior art keywords
- malodorant
- biological decomposition
- fine hair
- reactive tank
- bacterium
- 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
Images
Classifications
-
- 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
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
A process of the treatment for malodorous substances and its apparatus are disclosed. Circular villiform contact filtration materials as microbe carriers treat with high concentration organic malodorous substances. In first step, pH is round neutrality using NaOH and H2SO4. In second step, the substances such as bacteria, mildew or the like treat with NH3, H2S, methanthiol(CH3SH) or the like in the malodorous substances. The invention is characterized in that, cyclic disperser and neutralization agent adding tube are provided between the reaction tank (2) in first step. In second step, there is provided with a biolysis carrier layer, and porous villiform medium and water distributor in the decomposer, in first step of adding caustic soda and sulphuric acid there is provided with a cyclic dispersed-air tube and a dispersing dividing panel, in second step microbial circular villiform contact filtration materials and porous pearlite are added into the decomposer.
Description
As shown in Figure 1, the present invention relates to a kind of method of wastewater treatment and device thereof, this method comprises: in fine hair shape contact percolation material, form following puberulus fine hair shape contact percolation material, this material is made by PP and nylon, has good tack, by many hair (fine hair, cilium) form, have circular configuration, above-mentioned puberulus length is in the scope of 3～10mm.
As the very high place of malodorant concentration, comprise fecaluria, livestock products, alcohol, castoff, slaughterhouse, in serious occasion, the concentration of organic malodorant can reach more than the 500ppm.When organic malodorant concentration is higher, passing through corruption, under the situation that the existing soil body processing constructional method that adopts soil, gravel etc. is handled malodorant, because the pore that not only can occur in the medium stops up, the phenomenon of carrier layer sealing, and because of the breeding of the property bacterium that is sick of, the density unevenness of malodorant is spared, processing efficiency must reduce like this, and floor space is bigger.
Therefore, the object of the present invention is to provide a kind of treatment unit and method, these apparatus and method adopt following circular fine hair shape contact percolation material, according to removing method, organic malodorant of high density and hard-degraded substance are handled, be fixed with bacterium and mould by solidification treatment on this filtering material, even this bacterium and mould still can breed under higher organic concentration condition in a large number, and tack is very strong.
Below the present invention is specifically described.
Fig. 1 is for adopting the malodorant treating processes figure of circular fine hair shape contact percolation material of the present invention.
Fig. 2 represents in the circular fine hair shape contact percolation material of the present invention, the shorter filtering material of villus length in the scope of 3～10mm.
Fig. 3 represents in the circular fine hair shape contact percolation material of the present invention, through the fine hair filtering material of microbial immobilized processing.
Fig. 4 represents of the present invention, the porousness perlite medium of diameter about 5mm.
The present invention is made of two steps substantially, and the 1st step is: by the input port, utilize the circulation diffuser, acidity and the alkaline malodorant of high concentration neutralized.
The 2nd step is: by being attached with the circular fine hair shape contact filtration material of bacterium, mould, remove the NH of high concentration3、H
2S and methyl mercaptan (CH3SH)。
According to this step, by water distributor is set, regulate moisture, bacterium, mould that input inoculum agent or process immobilization are handled have higher activity.
The 3rd step is, when malodorant enters the acidity of high density or alkaline organic reactive tank (2) by malodorant influx (1), by neutralizing agent input port (10), drop into pH value conditioning agent, the pH value is adjusted in 6～8 the scope, mix by circulation diffuser (11), by the dispersion dividing plate (3) at middle part, the power set such by blower is sent to the top with the said mixture material.
According to the 2nd step, will put in the malodorant biological treatment decomposer (14) through fixing circular fine hair shape contact percolation material of handling (4) and inoculum agent, be provided with water distributor (5) on top.In addition, be provided for making the effusive ∧ shape of the malodorant dividing plate of handling through final (7).In addition, as required, can in the 2nd step, the biological decomposition groove more than 2 be set.
The invention is characterized in: the malodorant in the 1st step flows into reactive tank (2) afterwards, and the inside of the biological decomposition groove (14) that the processing malodorant in the 2nd step is used is filled with circular fine hair shape contact percolation material (4) and porousness perlite (12).In the 1st step, reactive tank adopts the reason of circulation diffuser to be: when the acid or alkaline malodorant of high density flows into, by stirring and circulation, the pH value is adjusted to 6～8 neutral degree, thereby prevents that malodorant in statu quo flows in the 2nd step.In addition, the interior dispersion dividing plate (3) of reactive tank that is arranged on the 1st step can make its dispersion, and keep stable when the malodorant inflow porous disc of high density, increases the processing efficiency of malodorant.
In addition, in the 2nd step, the reason that is filled with the circular fine hair shape contact percolation material of handling through immobilization in the biological decomposition groove is: in the 1st step, when the pH value is adjusted to the inflow of neutral malodorant, malodorant is adsorbed on the circular fine hair shape contact percolation material, lure bacterium and mold propagates thus into, with malodorant bigger contact area is arranged, thereby in the short period of time it is handled, and Another reason is: at the variation of the pH value of the malodorant that is produced in the 1st step, change with the organic concentration load, the biology that employing is adhered to by filling porous fine hair shape material, is easy to realize the transmission of oxygen towards the whole surface of contact percolation material, and malodorant transmits towards the dispersion on this surface, thereby can be with the gas discharge that purified.
Therefore, the objective of the invention is in the biological decomposition groove, be provided with fine hair shape contact percolation material, organic malodorant of high density and ammonia are removed processing, thereby remove malodorant.For the organic property of high density malodorant, generally adopt activated carbon adsorption to handle and chemical treatment, but in the present invention, malodorant is not carried out Chemical Pretreatment, and in the 1st step, directly inject.
In general, the high density malodorant is that the pH value is 3 acid malodorant, even but find that also the present invention also is suitable in the pH of malodorant value in 3～8 scopes, still can handle by this treatment unit, according to the present invention, owing to saved the expense of regulating the necessary chemical reagent of pH value, catalyzer neither be essential in addition, and the leaked-in air of employing own has reduced executive cost and maintenance management expense in the 1st step like this.But,, as adding caustic soda, sulfuric acid, promote it to decompose by the conditioning agent that is fit to, thereby improve the removal efficient of malodorant because the pH value acid or alkaline malodorant of high density presents malconformation.
Aspect nitrogen and the sulphur, the 2nd step of adding bacterial classification plays an important role in removing the biological decomposition groove.Adoptable inoculum agent comprises bacillus cereus, Bacillus subtilus, bacillus licheniformis, Thiobacillus pars intermedia etc.When in the 2nd step, injecting bacterium, in fine hair shape filtering material layer, microorganism takes off matter and oxidation, and organism is decomposed, and organic nutrient substance, nitrogen compound carry out nitrite acidizing to be handled, there is being Nitrosomas to carry out under the situation of nitration treatment, remove ammonia by nitrobacteria, this is external to have under the situation that hydrogen sulfide exists, and oxidizing bacteria, thiobacillus and thread fungus that the sulfuration bacterium forms make element sulphur become lead sulfate, thread sulfur bacteria is used as the energy as autotrophic bacteria with H2S.Promote the breeding of other Beggiatoa, Thiothrix and mould.
Except above-mentioned steps, if in the 1st step, breeding has the mud of bacterium mould to become black, then must discharge the mud of reactive tank inside.Be provided with mud discharging pipe (13) in the bottom of reactive tank.
Perhaps, adopt bacterium, the mould fungi of bacterial classification microorganism used in the 2nd step in the following manner, realize the method for processing in the fine hair filtering material, this mode is: under the temperature of 60C microbial strain culture is carried out air seasoning, realize the immobilization processing afterwards.Obviously, adopt the method for handling as common immobilization method, that in reactive tank, drop into bacterial classification, can realize the through engineering approaches processing.
With way of example, the effect of apparatus of the present invention and method is described below, the purpose of embodiment is with way of example effect of the present invention and technical characterictic to be described, so these embodiment do not constitute limiting the scope of the invention.
The 1st embodiment
Adopt malodorant treatment unit of the present invention, in the process that waste water is handled, according to the mode of the 1st step and the 2nd step, the night soil plant in Gyeonggi-do, Korea ァ ニ ャ Application city, inject the fecaluria malodorant that fecaluria is handled the field continuously, it is handled.The composition of this fecaluria malodorant is listed in the table below.Table 1
| ????NH 3(ppm) | ????50～120 |
| ????H 2S(ppm) | ????12～30 |
| The pH value | ????6.5 |
By the 1st step of the present invention (pH reactive tank), the 2nd step (biological decomposition groove) above-mentioned malodorant is handled, but the capacity of single pH reactive tank is 150 liters, the 2nd biological decomposition tankage is 300 liters, the whole residence time of whole and biological decomposition groove is 24 seconds/day, and gas is 2.5 meters/minute by speed.The area of the fine hair shape contact percolation material of being filled in addition also is 1260 meters
2
Table 2 malodorant processing efficiency
| ????NH 3(ppm) | ????N.D |
| ????H 2S(ppm) | N.D (odorless) |
| Whole process | ????99％ |
PH value in table 3 reactive tank and the biological decomposition groove
| The 1st step | ????7.5 |
| The 2nd step | ????7.9 |
Table 4 is when adopting device of the present invention that malodorant is handled, and microorganism can be attached on the fine hair shape contact percolation material in apparatus of the present invention, and the microorganism on it is listed in the table below.
In addition, the fixedly inoculum agent that is adopted in the present embodiment comprises bacillus cereus, bacillus licheniformis, bacillus megaterium, achromobacter, Thiobacillus pars intermedia.
| The 1st step | Bacterium: huge bud bag bacillus Pseudomonas aeruginosa |
| The 2nd step | Bacterium: Thiobacillus bacillus Nitroaus species nitrobacteria belongs to mushroom: Aspergillus, Mucor Pusillus etc. |
The 2nd embodiment
Adopt the 1st step and the 2nd step in the wastewater treatment process of the present invention, the livestock products malodorant below injecting is continuously handled malodorant simultaneously.The composition of the livestock products malodorant of ィ チ ョ Application night soil plant is listed in the table below.
Table 5
| ????NH 3(ppm) | ????20 |
| ????H 2S(ppm) | ????10 |
| The pH value | ????7.9 |
When in the 1st step (pH reactive tank) and the 2nd step, dropping into circular fine hair shape contact percolation material, by the 2nd step malodorant is handled, but the capacity of biological decomposition groove is 300 liters.The residence time of biological decomposition groove integral body is 20 seconds/day, and wind speed is 3.0 meters/minute.The area of the fine hair shape contact percolation material of being filled in each biological decomposition groove is 1260 meters
2
Table 6
The malodorant processing efficiency
| ????NH 3(ppm) | ????N.D |
| ????H 2S(ppm) | ????0.02 |
| Whole process | ????99％ |
Table 7
PH value in reactive tank and the biological decomposition groove
| The 1st step | ????7.5 |
| The 2nd step | ????7.3 |
Table 8 is carrying out malodorant of the present invention when handling, and particularly when the livestock products malodorant was handled, the fixation of microbe of handling malodorant attached to being used on the fine hair shape contact percolation material was listed in the table below.
| The 1st step | Bacterium: bacillus megaterium Pseudomonas aeruginosa algae: singly connect Trentepohlia, Chrococuis |
| The 2nd step | General bacterium: the nitronic acid bacterium such as huge bud bag bacillus bacillus licheniformis: the single fertile Pseudomonas Nitorcoccus nitrobacteria of nitrosation belongs to nitrococcus sulphation bacterium: Thiobacillus pars intermedia Thiomicrospurn pelophila spiral microorganism |
By analyzing foregoing technical scheme of the present invention and effect, adopt wastewater treatment equipment of the present invention and method as can be seen, when handling the organic malodorant of high density, NH
3And H
2Removal effect of organic matter such as S are remarkable, also show in addition and can also remove thiomethyl alcohol (NH
3SH).Its concrete processing efficiency also specifically describes in an embodiment of the present invention.
The implication of each label is as follows among Fig. 1
1. 7. dividing plate biological decomposition groove of inflow entrance
2. 10. nertralizer input port outlet of reactive tank
3. dividing plate circulation diffuser bacterial classification service tank
4. fine hair shape filtering material porous perlite
5. bacterial classification enters the mouth and water distributor mud discharging pipe
Claims (7)
1. wastewater treatment equipment, comprise malodorant influx (1) and intermediate membrane (3), pH reactive tank (2) is arranged in the bottom of this plate, top at this plate, a biological decomposition groove (14) that links to each other with above-mentioned reactive tank is arranged, be provided with the circulation diffuser (11) that oxygen is provided to malodorant in addition in the bottom of intermediate membrane (3), in biological decomposition groove top, be provided with inoculum agent inlet and water distributor (5), be provided with mud discharging pipe (13) and neutralizing agent input port (10) in the bottom of reactive tank.
2. device according to claim 1 is characterized in that being filled with fine hair shape contact percolation material (4) and porousness perlite (12) respectively in above-mentioned biological decomposition groove (14) inside.
3. malodorant treatment process, this method comprises the steps:
The 1st step: by being provided with the malodorant processing reaction groove (2) that disperses dividing plate (3) therebetween, the pH value of regulating malodorant under anaerobic makes bacterium and yeast growth;
The 2nd step: handle biological decomposition groove (14) by malodorant and make bacterium and mold propagates.
4. method according to claim 3, it is characterized in that being filled with circular fine hair shape contact percolation material and porousness perlite (12), T font water distributor (5), be provided with dividing plate (7) in the above-mentioned biological decomposition groove in above-mentioned biological decomposition groove (14) inside.
5. according to claim 3 or 4 described methods, it is characterized in that HN to the organism, particularly higher concentration that flows into the higher concentration in reactive tank (2) malodorant
3Handle.
6. method according to claim 5 is characterized in that to malodorant concentration be 500ppm, and the malodorant of pH value in 3～8 scopes handled.
7. according to claim 3 or 4 described methods, it is characterized in that handling in the following manner, this mode is: fill the microorganism that is fixed on the carrier in the 2nd step, this microorganism immobilization carrier is made like this, when existing microorganism is carried out bacterial classification inoculation, the good microorganism of decomposability with the malodorant of high-enriched organics and difficult degradation, as bacillus licheniformis, bacillus megaterium, achromobacter, stream Bacillaceae pars intermedia bacterium, mould fungi, under 60 ℃ temperature, these culture of strains liquid are carried out air seasoning, be fixed in circular being on the contact percolation material that the fine hair shape twines mutually then.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR50921/97 | 1997-10-02 | ||
| KR1019970050921A KR100260979B1 (en) | 1997-10-02 | 1997-10-02 | A process of the treatment for waste smell by using microbe fixed cillium ball, and the bio-reactor therefor |
| KR50921/1997 | 1997-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1230525A true CN1230525A (en) | 1999-10-06 |
| CN1165490C CN1165490C (en) | 2004-09-08 |
Family
ID=19522179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981243355A Expired - Fee Related CN1165490C (en) | 1997-10-02 | 1998-10-02 | Process of treatment for waste smell by using microbe fixed cillium ball, and bio-reactor therefor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100260979B1 (en) |
| CN (1) | CN1165490C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076498B (en) * | 2004-11-22 | 2012-06-06 | 努比亚水系统有限公司 | Aeration type biofiltering system and waste water treatment method |
| CN102812295A (en) * | 2010-04-19 | 2012-12-05 | 三菱重工环境·化学工程株式会社 | Diffusion Tube For Sludge Fluidized Bed Incinerator And Diffusion Device |
| CN102826647A (en) * | 2012-08-15 | 2012-12-19 | 哈尔滨工业大学宜兴环保研究院 | Aerobic denitrification reactor with mycelium pellet as carrier and method for synchronous operation of nitrification and denitrification |
| CN103922485A (en) * | 2014-04-04 | 2014-07-16 | 于美萍 | Sewage deodorizing process method |
| CN103922472A (en) * | 2014-04-14 | 2014-07-16 | 北京工业大学 | Device and method for strengthening denitrification and biological deodorization by A/O process |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100324727B1 (en) * | 1999-04-15 | 2002-02-28 | 한기백 | Separating apparatus of suspended solid in liquid solution using flexible fiber |
| KR100360846B1 (en) * | 1999-11-15 | 2002-11-22 | 주식회사 태백종합환경기술단 | A floating biofilm media for odor control in wastewater treatment process |
| KR100471385B1 (en) * | 2002-10-30 | 2005-03-10 | 한국과학기술연구원 | Purification apparatus and process for streamwater using Pearlite attached Polyethylene Net and Bulged Polypropylene media |
| KR100971530B1 (en) * | 2009-09-08 | 2010-07-21 | 삼성엔지니어링 주식회사 | Wastewater treatment apparatus having bioreactor filled with media containing immobilized microbe and method of treating wastewater |
| CN104495879B (en) * | 2015-01-12 | 2016-05-11 | 武汉大学 | A kind of integrated form catalytic oxidation/dephosphorization denitrogenation-isolated by filtration bioreactor |
-
1997
- 1997-10-02 KR KR1019970050921A patent/KR100260979B1/en not_active IP Right Cessation
-
1998
- 1998-10-02 CN CNB981243355A patent/CN1165490C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076498B (en) * | 2004-11-22 | 2012-06-06 | 努比亚水系统有限公司 | Aeration type biofiltering system and waste water treatment method |
| CN102812295A (en) * | 2010-04-19 | 2012-12-05 | 三菱重工环境·化学工程株式会社 | Diffusion Tube For Sludge Fluidized Bed Incinerator And Diffusion Device |
| CN102812295B (en) * | 2010-04-19 | 2014-05-28 | 三菱重工环境·化学工程株式会社 | Diffusion tube for sludge fluidized bed incinerator and diffusion device |
| CN102826647A (en) * | 2012-08-15 | 2012-12-19 | 哈尔滨工业大学宜兴环保研究院 | Aerobic denitrification reactor with mycelium pellet as carrier and method for synchronous operation of nitrification and denitrification |
| CN102826647B (en) * | 2012-08-15 | 2014-03-12 | 哈尔滨工业大学宜兴环保研究院 | Aerobic denitrification reactor with mycelium pellet as carrier and method for synchronous operation of nitrification and denitrification |
| CN103922485A (en) * | 2014-04-04 | 2014-07-16 | 于美萍 | Sewage deodorizing process method |
| CN103922485B (en) * | 2014-04-04 | 2016-03-30 | 于美萍 | A kind of sewage deodorizing processing method |
| CN103922472A (en) * | 2014-04-14 | 2014-07-16 | 北京工业大学 | Device and method for strengthening denitrification and biological deodorization by A/O process |
| CN103922472B (en) * | 2014-04-14 | 2016-03-02 | 北京工业大学 | The device and method of the denitrogenation of a kind of A/O process strengthening and biological deodorizing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100260979B1 (en) | 2000-07-01 |
| KR19990030630A (en) | 1999-05-06 |
| CN1165490C (en) | 2004-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5599443A (en) | Apparatus for waste water treatment using charcoal biologically activated | |
| CN101684021A (en) | Technique for treating sewage of aeration biofilter having function of reinforced deodorization | |
| CN106673192A (en) | Technology for removing total nitrogen in garbage leachate by anammox and special device thereof | |
| RU2303572C2 (en) | Micellar method for mud treatment in sewage disposal plant | |
| KR20060043555A (en) | Method for producing immobilized microorganism, immobilized microorganism produced therefrom and a reaction apparatus using the same | |
| CN1230525A (en) | Process of treatment for waste smell by using microbe fixed cillium ball, and bio-reactor therefor | |
| CN105753270A (en) | Water purifying system suitable for high-ammonia nitrogen livestock and poultry breeding wastewater | |
| CZ288239B6 (en) | Apparatus for simultaneous biological removal of phosphorus and nitrogen from waste water and removal process thereof | |
| CN104291444B (en) | A kind of contact hydrolysis-algae micro-aeration compound sewage processing system and method | |
| JP2006051493A (en) | System and method for treating sludge of sewage or organic waste water | |
| CN109516559A (en) | Integrated sewage disposal equipment for reclaiming | |
| CN1292995C (en) | Aerobic initiating method of anaerobic ammoxidation reactor | |
| CN1789179A (en) | Highland and severe cold areas sewage treatment method | |
| CN102070283B (en) | Technique for efficiently treating livestock/poultry culture wastewater | |
| CN1242935C (en) | Culturing method of microbe for high temperature waste water biochemical treatment | |
| KR100850677B1 (en) | Method for treating sludge of sewage or organicwastewater | |
| CN105174653A (en) | Sewage treatment process and sewage treatment system for garbage landfill | |
| CN1736901A (en) | Ammonia nitrogen containing waste water treatment method | |
| CN1328192C (en) | A method for comprehensive treatment of high-concentration organic wastewater | |
| CN212269586U (en) | Synchronous nitrification and denitrification MBBR sewage treatment equipment | |
| JP2018183763A (en) | Method and apparatus for treatment of organic wastewater | |
| CN1315296A (en) | Process for treating waste liquid of molasses alcohol | |
| CN1305787C (en) | A method for comprehensive treatment of wastewater | |
| EP0739859B1 (en) | Apparatus and method for waste water treatment using charcoal biologically activated | |
| CN111115818A (en) | Synchronous nitrification and denitrification MBBR sewage treatment equipment and method |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040908 Termination date: 20101002 |