CN106630172A - Treatment method of epichlorohydrin wastewater - Google Patents
Treatment method of epichlorohydrin wastewater Download PDFInfo
- Publication number
- CN106630172A CN106630172A CN201510737334.1A CN201510737334A CN106630172A CN 106630172 A CN106630172 A CN 106630172A CN 201510737334 A CN201510737334 A CN 201510737334A CN 106630172 A CN106630172 A CN 106630172A
- Authority
- CN
- China
- Prior art keywords
- fstb
- culture
- waste water
- calcium ion
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention relates to a treatment method of epichlorohydrin wastewater. The treatment method is characterized in that a biochemical method is used to treat the epichlorohydrin wastewater, a manner gradually increasing the concentration of COD and calcium ions in inlet water is adopted during treatment, a halotolerant bacterium is added at the same time, the halotolerant bacterium is (Paracoccus sp.) FSTB-2 which is preserved in China General Microbiological Culture Collection Center on June 1st, 2015, and the preservation number of the (Paracoccus sp.) FSTB-2 is CGMCC No. 10938. The treatment method has the advantages that the specific halotolerant bacterium is added during the treatment of the epichlorohydrin wastewater, a treatment system can tolerate high-salt and high-calcium environments, COD in the wastewater can be removed efficiently, and the method is simple in process, high in treatment efficiency, low in treatment cost and the like.
Description
Technical field
The invention belongs to environment-protection wastewater processing technology field, and in particular to a kind of processing method of epoxychloropropane waste water.
Background technology
Epoxychloropropane is a kind of important organic synthesis intermediate, mainly for the production of fine chemical products such as epoxy resin, synthetic glycerine, chlorohydrin rubbers.Propylene high-temperature chloridising is the classical way for industrially producing epoxychloropropane, and the sewage produced in technical process has the features such as water yield is big, salinity is high, calcium ion concentration is high, and independent intractability is big, costly.Presently relevant enterprise frequently results in biochemical treatment system doped calcium substantially using biochemical processing process after mixing with the waste water of other process units, causes inorganic constituents in activated sludge to raise, the phenomenon such as Sludge Property deterioration.
With increasingly strict, the subject matter for being processed into restriction industrial water saving development of epoxychloropropane waste water of environmental protection requirement, the economic benefit and social benefit of enterprise are severely impacted.Therefore the pretreatment of epoxychloropropane waste water except calcium ion, to reduce salt content very crucial.For high slat-containing wastewater can be to be processed by the way of evaporation, but the waste water water yield produced in epoxychloropropane production process is big, it is clear that using being pre-processed to waste water because relatively costly by the way of evaporating, enterprise cannot bear.External useful membrane technology processes the waste water of production of propylene oxide chloride containing calcium, but because costly use is restricted.The waste water high for calcium ions concentration, is generally in advance removed calcium ion using carbonate, and not only the removal of calcium ion is limited, and the salt ionic concentration in waste water can be caused to raise, still cannot directly using biochemical process process.
In the biochemical processing process of epoxychloropropane waste water, microorganism is the key factor for affecting good waste water treatment effect bad.Using A/O, SBR and MBR etc. more than existing handling process, operation pH value is more between 7.5-8.5, easily occurs problems with actual moving process：（1）Water treatment effect is deteriorated after bioprocess technology section operation a period of time；（2）Sludge settling property improves causes sludge closely knit, and Treatment of Sludge effect is deteriorated；（3）The calcium ion of high concentration is changed into the insoluble matter of calcium carbonate, calcium sulfate and other calcium and is attached to above microorganism, causes microorganism calcification, reduces the performance of microbiological treatment waste water.
CN200710011998.5 discloses a kind of method of the production waste water of process expoxy propane, mainly includes three steps：（1）Reacted using ammonium hydrogen carbonate and calcium chloride, generate calcium bicarbonate and ammonium chloride；（2）Calcium bicarbonate thermally decomposes to generate precipitation of calcium carbonate, water and carbon dioxide；（3）Calcium hydroxide in waste water thermally decomposes the carbon dioxide reaction for producing with calcium bicarbonate, generates precipitation of calcium carbonate and water.Although the invention can remove calcium ion, the removal of salt ion can not be solved the problems, such as.CN201110135948.4 discloses a kind of method of chlorohydrination epoxychloropropane saponification waste-water recycling, feature be by the calcium chloride transformation in saponification waste-water be winnofil, simultaneously the brine waste containing organic matter is obtained, still cannot directly using biochemical process process.
In high slat-containing wastewater process field, salt content is a key factor for affecting microbiological treatment waste water efficiency.Believe glad etc.（Biological reinforcing technology processes highly salt containing organic waste water [J]. water technology, 2008,8：66-70）Highly salt containing organic waste water is processed using biological reinforcing technology, significantly improved using the dehydrogenase activity of the biological reinforced saponin waste water biological treatment system activated sludge of Facultative Halophiles, when system tolerance chlorine ion concentration is up to 2.8%, the clearance of saponin waste water COD is 84.41%.CN201210130657.0, CN201210130644.3, CN201010536065.X and CN201210130658.5 are related to using marsh cock Salmonella（Kocuri apalustris）FSDN-A, Staphylococcus cohnis（Staphylococcu scohnii）FSDN-C, arthrobacterium（Arthrobacter creatinolyticus）FDN-1, Shui Shi Flavobacterium（Flavobacterium mizutaii）FDN-2, Paracoccus denitrificans（Paracoccus denitrificans）DN-3 and Methylobacterium（Methylobacterium phyllosphaerae）The method that SDN-3 is carried out a biological disposal upon to the ammonia nitrogen in brine waste and catalytic cracking catalyst waste water, total nitrogen and COD.The method needs to cultivate various bacterial strains and is compounded, and preparation process is complicated, and production cost is higher.
The content of the invention
For the deficiencies in the prior art, the present invention provides a kind of processing method of epoxychloropropane waste water.The present invention adds specific Facultative Halophiles in epoxychloropropane wastewater biochemical processing procedure, and system for handling is resistant to high salt, high calcium environment, realizes the efficient removal of COD in waste water, with process is simple, treatment effeciency height, the low feature of processing cost.
The processing method of epoxychloropropane waste water of the present invention, including following content：Epoxychloropropane waste water is processed using biochemical process, using improving in water inlet by the way of COD and calcium ion concentration step by step in processing procedure, while adding Facultative Halophiles, the Facultative Halophiles are pair coccus（Paracoccus sp.）FSTB-2, is preserved in " China Committee for Culture Collection of Microorganisms's common micro-organisms center " on June 1st, 2015, and deposit number is CGMCCNo.10938.
In the present invention, the water quality of epoxychloropropane waste water is：Calcium ion concentration is 2000-8000mg/L, preferably 2000-4000mg/L, COD（Cr methods, similarly hereinafter）For 800-2500mg/L, preferably 1000-1500mg/, total salt quantity is 0.6wt%-5.0wt%.During startup, it is 200-1000mg/L to control calcium ion concentration in water inlet, when continuous 3 batch influent CODs clearance is up to more than 90%, improves water inlet calcium ion concentration, and 50-100mg/L is improved every time, until it is 2000-8000mg/L to improve to calcium ion concentration.
In the present invention, it is known in those skilled in the art, such as A/O that biochemical process processes epoxychloropropane waste water（Anaerobic-aerobic process）、SBR（Sequencing batch active sludge）、MBR（Membrane biological process）Deng preferably using membrane biological process.Treatment conditions are：Temperature is 20-40 DEG C, and pH is 6.0-9.0, and dissolved oxygen concentration is 0.5-5mg/L.
In the present invention, described secondary coccus（Paracoccus sp.）FSTB-2 bacterial strains, are preserved in China Committee for Culture Collection of Microorganisms's common micro-organisms center（CGMCC）；Address：Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3 Institute of Microorganism, Academia Sinica；Deposit number：CGMCC No.10938；Preservation date：On June 1st, 2015.The main morphological features of the bacterial strain are：Colony colour is ecru, and it is spherical that bacterial strain is individual；Physiological and biochemical property is：Gram's staining is feminine gender, and oxidase positive, catalase is negative, and decomposable asymmetric choice net utilizes several kinds of carbon source, with nitrate reduction activity.The bacterial strain can be applicable to the efficient removal of COD in the brine waste of salt content 1.0wt%-8.0wt%, and can grow under 40 DEG C of high temperature.
In the present invention, the cultural method of described secondary coccus FSTB-2 includes the three phases such as bacterial strain activation, liquid seeds liquid culture, aeration culture, concretely comprises the following steps：
（1）Bacterial strain is activated：By secondary coccus（Paracoccus sp.）FSTB-2 is inoculated into the inclined-plane of FSTB solid mediums or flat board, 25-40 DEG C of culture 24-48 hour, in being then stored in 4 DEG C of refrigerators.
（2）Liquid seeds liquid culture：Prepare FSTB fluid nutrient mediums, in being sub-packed in triangular flask, sterilize and be cooled to after room temperature, the inoculation activated in picking inclined-plane or flat board under gnotobasis in triangular flask, 25-40 DEG C of culture 24-72h.The FSTB fluid nutrient mediums are：FeSO4•7H2O 25mg/L, NH4NO3
286mg/L, KCl 929mg/L, CaCl22769mg/L, NaCl 21008mg/L, beef extract 5g/L, peptone 10g/L, pH value is 6.0-8.5, preferably 6.5-8.0.FSTB solid mediums are the agar that 20g/L is added in liquid medium within.
（3）Aeration culture：FSTB fluid nutrient mediums are added in the reactor for be provided with aerator, ratio inoculation liquid seed liquor according to reactor volume than 5%-25%, pH value is controlled in 6.0-8.5, aeration culture 48-96 hours, periodic feed supplement and discharge operation are carried out afterwards, withdrawal rate accounts for the 5%-90% of reactor volume, feed supplement amount accounts for the 5%-90% of reactor volume, also a small amount of carbon source can be added, nitrogen source and microelement substance, culture 24-48 hours are 1 cultivation cycle, discharge the nutrient solution of corresponding volume according to aforementioned proportion afterwards, thus the dense bacterium solution product containing high concentration pair coccus is obtained.
In the present invention, the dense bacterium solution product that above-mentioned culture is obtained is added in wastewater treatment system according to the 0.01%-1% of handled wastewater volume per hour, preferably 0.1%-0.5%.
In the present invention, in the culture of long term open formula or wastewater treatment, still might have other a small amount of interference strain growths, to prevent from disturbing bacterium continuation flourish to become dominant bacteria, can be with taken at regular intervals culture bacterium solution, during the flat board containing FSTB solid mediums is applied to after dilution, bacterium colony to growing is counted and is counted the percentage of bacterium colony similar to FSTB-2, when percent similarity it is close 50% when, lincomycin can be added, Rifamycin Sodium, acidum nalidixicum, one or more in guanidine hydrochloride etc., concentration is added for 0.01-100mg/L, persistently add 2-7 cultivation cycle, the microorganism of floating is discharged in draining discharge, recover normal open culture operating process afterwards.
Compared with prior art, the invention has the advantages that：
（1）The present invention adds specific Facultative Halophiles in epoxychloropropane wastewater treatment process, so that biochemical treatment system is resistant to high salt, high calcium environment, realize the efficient removal of COD in waste water, calcium ion need not thoroughly be removed, waste water just can directly carry out biochemical treatment, with treatment effeciency height, the low feature of processing cost.
（2）Secondary coccus FSTB-2 can be applied not only to the efficient removal of COD in brine waste, can particularly tolerate high calcium environment, be especially suitable for the biochemical treatment of epoxychloropropane waste water, little with dosage, the low advantage of processing cost.
Specific embodiment
The effect of the present invention is further illustrated with reference to embodiment, but is not so limited the present invention.
The cultural method of the secondary coccus FSTB-2 that the embodiment of the present invention is adopted includes the three phases such as bacterial strain activation, liquid seeds liquid culture, aeration culture, and detailed process is as follows：
（1）Bacterial strain is activated：Secondary coccus FSTB-2 is inoculated into the flat board containing FSTB solid mediums, is cultivated 48 hours under 35 DEG C of environment, be then stored in stand-by in 4 DEG C of refrigerators.The FSTB solid mediums are：FeSO4•7H2O 25mg/L, NH4NO3
286mg/L, KCl 929mg/L, CaCl22769mg/L, NaCl 21008mg/L, beef extract 5g/L, peptone 10g/L, agar 20g/L, pH value 7.8.
（2）Liquid seeds liquid culture：FSTB fluid nutrient mediums are prepared, in being sub-packed in triangular flask, is sterilized and is cooled to after room temperature, cultivated 48 hours under the conditions of 35 DEG C in triangular flask with the inoculation after activation in oese picking flat board under gnotobasis.The FSTB fluid nutrient mediums are：FeSO4•7H2O 25mg/L, NH4NO3
286mg/L, KCl 929mg/L, CaCl22769mg/L, NaCl 21008mg/L, beef extract 5g/L, peptone 10g/L, pH value 7.8.
（3）Aeration culture：Cultivated using closed reactor, it is complete that institute is required to sterilizing using reactor and various utensils, air inlet and exhaust position need to install bacteriological filter apparatus, nutrient solution, acid-base modifier and trace element solution are required to be added according to sterile working code after sterilizing, reactor need to be equipped with aerator, and can carry out into water, acid adjustment, alkali tune, feed supplement and draining discharge are operated, the FSTB fluid nutrient mediums being put into the reactor after sterilizing, ratio according to percent by volume 10% is inoculated with liquid seed liquor, after opening incubation, adopt soda acid automatic control system by medium pH value scope control in 6.0-8.5 in incubation, aeration culture carries out afterwards periodic feed supplement and discharge operation for 72 hours, discharge is the nutrient solution of the 25% of reactor volume, feed supplement is the FSTB fluid nutrient mediums of reactor volume 25%, culture 24 hours is 1 cultivation cycle, discharge the nutrient solution of corresponding volume according to aforementioned proportion afterwards, thus the dense bacterium solution product containing secondary coccus is obtained.
The dense bacterium solution of the secondary coccus FSTB-2 that the embodiment of the present invention is obtained using above-mentioned culture is added.
Embodiment 1
Certain enterprise produces the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is 800mg/L, calcium ion concentration：4000mg/L, total salt quantity：1.2wt%.System for handling is to adopt sequencing batch active sludge, and treatment temperature is 30 DEG C, and pH is 7.0, and dissolved oxygen is 2-3mg/L.During startup, it is 750mg/L to control calcium ion concentration in water inlet, and COD clearances improve influent concentration up to more than 90% in continuous 3 batches 48h, and calcium ion concentration improves every time 50mg/L, until it is 4000mg/L to improve to calcium ion concentration；The dense bacterium solution of above-mentioned cultured Facultative Halophiles is added simultaneously, and dosage is added according to the 0.1% of handled wastewater volume per hour.COD concentration is less than 3500mg/L less than 60mg/L, calcium ion concentration in waste water after treatment, not only realizes the efficient removal of COD in epoxychloropropane waste water, but also can remove part calcium ion.
Embodiment 2
Certain enterprise produces the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is 1450mg/L, calcium ion concentration：2500mg/L, total salt quantity：2.4%.System for handling is to adopt sequencing batch active sludge, and treatment temperature is 40 DEG C, and pH is 8.0, and dissolved oxygen is 2-3mg/L.During startup, it is 250mg/L to control calcium ion concentration in water inlet, and COD clearances improve influent concentration up to more than 90% in continuous 3 batches 36h, and calcium ion concentration improves every time 80mg/L, until it is 2500mg/L to improve to calcium ion concentration；The dense bacterium solution product of above-mentioned cultured Facultative Halophiles is added simultaneously, and dosage is added according to the 0.5% of handled wastewater volume per hour.COD concentration is less than 2000mg/L less than 60mg/L, calcium ion concentration in waste water after treatment, not only realizes the efficient removal of COD in epoxychloropropane waste water, but also can remove part calcium ion.
Embodiment 3
Certain enterprise produces the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is 2350mg/L, and calcium ion concentration is 3000mg/L, total salt quantity：2.8%.System for handling is membrane biological process, and treatment temperature is 35 DEG C, and pH is 7.5, and dissolved oxygen is 2-3mg/L.During startup, it is 500mg/L to control calcium ion concentration in water inlet, and COD clearances improve influent concentration up to more than 90% in continuous 3 batches 36h, and calcium ion concentration improves every time 100mg/L, until it is 3000mg/L to improve to calcium ion concentration；The dense bacterium solution product of above-mentioned cultured Facultative Halophiles is added simultaneously, and dosage is added according to the 0.5% of handled wastewater volume per hour.COD concentration is less than 2500mg/L less than 60mg/L, calcium ion concentration in waste water after treatment, not only realizes the efficient removal of COD in epoxychloropropane waste water, but also can remove part calcium ion.
Comparative example 1
Process waste water and operating condition is same as Example 1, difference is：Facultative Halophiles are not added in processing procedure.Because calcium ion concentration is too high, biochemical treatment system doped calcium, Sludge Property is caused to deteriorate, treatment effect is not good, operation failure.
Claims (10)
1. a kind of processing method of epoxychloropropane waste water, it is characterised in that including following content：Epoxychloropropane waste water is processed using biochemical process, using improving in water inlet by the way of COD and calcium ion concentration step by step in processing procedure, while adding Facultative Halophiles, the Facultative Halophiles are pair coccus（Paracoccus sp.）FSTB-2, is preserved in " China Committee for Culture Collection of Microorganisms's common micro-organisms center " on June 1st, 2015, and deposit number is CGMCCNo.10938.
2. method according to claim 1, it is characterised in that：The water quality of epoxychloropropane waste water is：Calcium ion concentration is 2000-8000mg/L, and COD is 800-2500mg/L, and total salt quantity is 0.6wt%-5.0%.
3. method according to claim 1, it is characterised in that：During startup, it is 200-1000mg/L to control calcium ion concentration in water inlet, when continuous 3 batch influent CODs clearance is up to more than 90%, improves water inlet calcium ion concentration, and 50-100mg/L is improved every time, until it is 2000-8000mg/L to improve to calcium ion concentration.
4. method according to claim 1, it is characterised in that：Described biochemical process is A/O（Anaerobic-aerobic process）、SBR（Sequencing batch active sludge）Or MBR（Membrane biological process）.
5. the method according to claim 1 or 4, it is characterised in that：The treatment conditions of the biochemical process are：Temperature is 20-40 DEG C, and pH is 6.0-9.0, and dissolved oxygen concentration is 0.5-5mg/L.
6. method according to claim 1, it is characterised in that：The main morphological features of described secondary coccus FSTB-2 bacterial strains are：Colony colour is ecru, and it is spherical that bacterial strain is individual；Physiological and biochemical property is：Gram's staining is feminine gender, and oxidase positive, catalase is negative, and decomposable asymmetric choice net utilizes several kinds of carbon source, with nitrate reduction activity；The bacterial strain is applied to the efficient removal of COD in the brine waste of salt content 1.0wt%-8.0wt%, and can grow under 40 DEG C of high temperature.
7. method according to claim 1, it is characterised in that：The cultural method of described secondary coccus FSTB-2 includes bacterial strain activation, liquid seeds liquid culture, aeration culture three phases, concretely comprises the following steps：
（1）Bacterial strain is activated：Secondary coccus FSTB-2 is inoculated into the inclined-plane of FSTB solid mediums or flat board, 25-40 DEG C of culture 24-48 hour, in being then stored in 4 DEG C of refrigerators；
（2）Liquid seeds liquid culture：Prepare FSTB fluid nutrient mediums, in being sub-packed in triangular flask, sterilize and be cooled to after room temperature, the inoculation activated in picking inclined-plane or flat board under gnotobasis in triangular flask, 25-40 DEG C of culture 24-72h；
（3）Aeration culture：FSTB fluid nutrient mediums are added in the reactor for be provided with aerator, ratio inoculation liquid seed liquor according to reactor volume than 5%-25%, pH value is controlled in 6.0-8.5, aeration culture 48-96 hours, periodic feed supplement and discharge operation are carried out afterwards, withdrawal rate accounts for the 5%-90% of reactor volume, feed supplement amount accounts for the 5%-90% of reactor volume, culture 24-48 hours are 1 cultivation cycle, discharge the nutrient solution of corresponding volume according to aforementioned proportion afterwards, thus obtain the dense bacterium solution product containing high concentration pair coccus.
8. method according to claim 7, it is characterised in that：The FSTB fluid nutrient mediums are：FeSO4•7H2O 25mg/L, NH4NO3
286mg/L, KCl 929mg/L, CaCl22769mg/L, NaCl 21008mg/L, beef extract 5g/L, peptone 10g/L, pH value is 6.0-8.5；FSTB solid mediums are addition 20g/L agar in liquid medium within.
9. method according to claim 7, it is characterised in that：The dense bacterium solution product that culture is obtained is added in wastewater treatment system according to the 0.01%-1% of handled wastewater volume per hour.
10. the method according to claim 1 or 7, it is characterised in that：In the culture of long term open formula or process waste water, to prevent from disturbing bacterium continuation flourish to become dominant bacteria, taken at regular intervals culture bacterium solution, during the flat board containing FSTB solid mediums is applied to after dilution, bacterium colony to growing is counted and is counted the percentage of bacterium colony similar to FSTB-2, when percent similarity it is close 50% when, add lincomycin, rifamycin, one or more in acidum nalidixicum or guanidine hydrochloride etc., concentration is added for 0.01-100mg/L, persistently add 2-7 cultivation cycle, the microorganism of floating is discharged in draining discharge, recover normal culture operating process afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737334.1A CN106630172B (en) | 2015-11-04 | 2015-11-04 | A kind of processing method of epoxychloropropane waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737334.1A CN106630172B (en) | 2015-11-04 | 2015-11-04 | A kind of processing method of epoxychloropropane waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106630172A true CN106630172A (en) | 2017-05-10 |
| CN106630172B CN106630172B (en) | 2019-09-10 |
Family
ID=58810904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737334.1A Active CN106630172B (en) | 2015-11-04 | 2015-11-04 | A kind of processing method of epoxychloropropane waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106630172B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087952A (en) * | 2013-01-17 | 2013-05-08 | 四川大学 | Formaldehyde degradation bacterium and use thereof |
| CN103232145A (en) * | 2013-05-29 | 2013-08-07 | 中国海洋石油总公司 | Method for degrading ammonia nitrogen in high-salinity sewage by microbes |
| CN103373762A (en) * | 2012-04-29 | 2013-10-30 | 中国石油化工股份有限公司 | Biological denitrification method for salt-containing sewage |
| CN103374524A (en) * | 2012-04-29 | 2013-10-30 | 中国石油化工股份有限公司 | Salt-tolerant microbial agent and preparation method thereof |
-
2015
- 2015-11-04 CN CN201510737334.1A patent/CN106630172B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373762A (en) * | 2012-04-29 | 2013-10-30 | 中国石油化工股份有限公司 | Biological denitrification method for salt-containing sewage |
| CN103374524A (en) * | 2012-04-29 | 2013-10-30 | 中国石油化工股份有限公司 | Salt-tolerant microbial agent and preparation method thereof |
| CN103087952A (en) * | 2013-01-17 | 2013-05-08 | 四川大学 | Formaldehyde degradation bacterium and use thereof |
| CN103232145A (en) * | 2013-05-29 | 2013-08-07 | 中国海洋石油总公司 | Method for degrading ammonia nitrogen in high-salinity sewage by microbes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106630172B (en) | 2019-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106746159A (en) | A kind of processing method of antibiotic production wastewater | |
| CN106635857B (en) | A kind of Pseudomonas stutzeri and its culture application | |
| CN106635858A (en) | Paracoccus sp. and culture application thereof | |
| CN106635861B (en) | A kind of de- COD denitrification microorganism microbial inoculum of salt tolerant and preparation method thereof | |
| WO2021077453A1 (en) | Pseudomonas stutzeri, composite microbial inoculum prepared using the pseudomonas stutzeri, and use of the composite microbial inoculum | |
| CN106635923B (en) | Preparation method of high-density salt-tolerant denitrifying bacteria agent suitable for wastewater treatment | |
| CN106115932A (en) | Sponge iron is collaborative with microorganism goes removing sulfate and the method for Cr (VI) waste water | |
| CN106746160A (en) | A kind of vancomycin produces the processing method of waste water | |
| CN106746161A (en) | A kind of rifamycin produces the processing method of waste water | |
| CN104611279A (en) | Rhodococcus erythropolis LH-N13 as well as microbial agent and use thereof | |
| CN110511894A (en) | A kind of composite bacteria agent and its preparation and application | |
| CN106746156A (en) | A kind of epoxychloropropane produces the processing method of waste water | |
| CN101054242B (en) | Application of planococcus psychrotoleratus in treating sewage at low temperature | |
| CN106635855B (en) | Microbacterium and its culture application are seen in a kind of north | |
| CN106630173B (en) | A kind of biochemical processing method of epoxychloropropane waste water | |
| CN106630174A (en) | Method for treating epichlorohydrin wastewater | |
| CN107828773A (en) | A kind of preparation method of the domestication agent of the activated sludge of brine waste processing | |
| CN115094013B (en) | Stenotrophomonas rhizophila, microbial inoculum and application of stenotrophomonas rhizophila in wastewater treatment | |
| CN106746162A (en) | A kind of processing method of cellulose ethanol production wastewater | |
| CN106630172B (en) | A kind of processing method of epoxychloropropane waste water | |
| CN101418266A (en) | Ochrobactrum CTS-325 and culture method thereof and application thereof in reduction of hexavalent chromium | |
| CN101054241A (en) | Application of flavobacterium omnivorum in treating sewage at low temperature | |
| CN107487868A (en) | A kind of method that nano cupric oxide cooperates with Cr VI in water removal with bacterium | |
| CN104609541B (en) | The direct biochemical processing method of a kind of decanedioic acid not desalination of waste water | |
| CN106635860A (en) | Salt-tolerant microbial agent as well as preparation method and application thereof |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230817 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |
|
| TR01 | Transfer of patent right |