CN104528928B - A kind of domestication technique of aerobic condition Gradient dynamic activity mud - Google Patents
A kind of domestication technique of aerobic condition Gradient dynamic activity mud Download PDFInfo
- Publication number
- CN104528928B CN104528928B CN201410815006.4A CN201410815006A CN104528928B CN 104528928 B CN104528928 B CN 104528928B CN 201410815006 A CN201410815006 A CN 201410815006A CN 104528928 B CN104528928 B CN 104528928B
- Authority
- CN
- China
- Prior art keywords
- value
- water
- days
- mud
- control
- 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.)
- Expired - Fee Related
Links
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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention relates to a kind of domestication technique of aerobic condition Gradient dynamic activity mud, it comprises: 1) according to mass ratio BOD
5: the proportions simulated wastewater of C:N:P=100:75:5:1 is as nutrient solution, for subsequent use; 2) by active sludge and step 1) gained nutrient solution adds in the sbr reactor pond of useful volume 15L, and stir aeration, under aerobic condition, within every 12 hours, change water once, be i.e. 12 hours ages of each mud; 1-6 days, changes water 3L at every turn, and control DO value is 1.5mg/L; 7-12 days, changes water 4.5L at every turn, and control DO value is 2.0mg/L; 13-18 days, changes water 6L at every turn, and control DO value is 2.5mg/L.Adopt gradient to add nutrient solution in domestication process of the present invention, the addition during difference is different, and gradient increases, and can make the increase of microbe population maximum quantity; Employing the inventive method is tamed through the cultivation of 18 days, and mud color becomes sorrel by black, has obvious fishy smell, and settling property achieves obvious raising.
Description
Technical field
The present invention relates to field of environment microorganism, day by day serious sewage handling problem can be widely used in.
Background technology
Activated sludge process is method conventional for the treatment of sewage at present, and it is not high to there are some domestication efficiency in the past in method, domestication DeGrain, utilization ratio is low, even do not carry out the drawbacks such as second stage employ, in fact have a lot of microorganism species in mud, storing a large amount of energy matters in some flora body can carry out extraction and application, and traditional method does not often reach the storage capacity of expection.
Summary of the invention
The present invention is directed to the domestication technique that above-mentioned Problems existing provides a kind of aerobic condition Gradient dynamic activity mud, to guarantee the superiority of gained active sludge property indices, waste water control can be applied to more efficiently.
The technical solution adopted in the present invention is: the domestication technique of aerobic condition Gradient dynamic activity mud, comprising:
1) according to mass ratio BOD
5: the proportions simulated wastewater of C:N:P=100:75:5:1 is as nutrient solution, for subsequent use;
2) by active sludge and step 1) gained nutrient solution adds in the sbr reactor pond of useful volume 15L, and stir aeration, under aerobic condition, within every 12 hours, change water once, be i.e. 12 hours ages of each mud;
1-6 days, changes water 3L at every turn, and control DO value is 1.5mg/L;
7-12 days, changes water 4.5L at every turn, and control DO value is 2.0mg/L;
13-18 days, changes water 6L at every turn, and control DO value is 2.5mg/L.
As preferably, each mud comprise age 10.5 hours stirring aeration, 1 hour leave standstill and 0.5 hour change water.
As preferably, leaving standstill and changing the water stage, control DO value is not less than 0.2mg/L.
As preferably, described in change water process be first discharge section waste water, then add the described nutrient solution of same volume with it.
As preferably, the carbon in simulated wastewater is provided by sodium-acetate, and nitrogen is provided by ammonium chloride, and phosphorus is provided by dipotassium hydrogen phosphate.
As preferably, described active sludge comes from municipal sludge treatment plant.
As preferably, described step 2) in, along with the increase of quantity of exchanged water increases aeration rate and stirring velocity.
As preferably, keep the pH value of sludge liquid in domestication process between 6.5-8.0, temperature is between 24-26 DEG C.
As preferably, described pH value is regulated by HCL or NaOH of 1mol/L.
The invention has the beneficial effects as follows: adopt gradient to add domestication liquid (nutrient solution) in domestication process of the present invention, the addition during difference is different, and gradient increases, and can make the increase of microbe population maximum quantity; Employing the inventive method is tamed through the cultivation of 18 days, mud color becomes sorrel by black, there is obvious fishy smell, settling property achieves obvious raising, the net result SV of 30 minutes is 25-30%, the value of SVI is 75-90, and MLVSS is stabilized between 3500-4500mg/L, the COD of the waste water discharged
cRdegradation rate is greater than 85%.
Embodiment
The domestication technique of aerobic condition Gradient dynamic activity mud comprises:
1) according to mass ratio BOD
5: the proportions simulated wastewater of C:N:P=100:75:5:1 is for subsequent use as nutrient solution; Carbon in simulated wastewater is provided by sodium-acetate, and nitrogen is provided by ammonium chloride, and phosphorus is provided by dipotassium hydrogen phosphate;
2) active sludge and the step 1 of municipal sludge treatment plant will be come from) gained nutrient solution joins in the sbr reactor pond (useful volume 15L) of 20L, stir aeration, under aerobic condition, within every 12 hours, change water once, i.e. 12 hours ages of each mud, comprise the stirring aeration of 10.5 hours, 1 hour leave standstill and 0.5 hour change water;
1-6 days, change water 3L (first discharge 3L waste water, then add 3L step 1 gained nutrient solution), and control DO value is 1.5mg/L at every turn; Leaving standstill and changing the water stage, control DO value is not less than 0.2mg/L;
7-12 days, changes water 4.5L (first discharge 4.5L waste water, then add 4.5L step 1 gained nutrient solution) at every turn, and control DO value (dissolved oxygen, lower same) is 2.0mg/L; Leaving standstill and changing the water stage, control DO value is not less than 0.2mg/L;
13-18 days, change water 6L (first discharge 6L waste water, then add 6L step 1 gained nutrient solution), and control DO value is 2.5mg/L at every turn; Leaving standstill and changing the water stage, control DO value is not less than 0.2mg/L; And along with the increase of quantity of exchanged water suitably increases aeration rate and stirring velocity.
In the middle of whole domestication process, by the pH value of HCL or the NaOH conditioning of mud liquid of 1mol/L, make it to maintain between 6.5-8.0; Temperature is stabilized between 24-26 DEG C by indoor cabinet type air-conditioning or heating rod, to ensure the steady growth of microorganism.
Through the cultivation domestication of 18 days, mud color becomes sorrel by black, there is obvious fishy smell, settling property achieves obvious raising, net result SV (the settlingvelocity of 30 minutes, sludge settling ratio, also known as 30 minutes rate of descent) be 25-30%, SVI (sludgevolumeindex, sludge volume index) value be 75-90, and MLVSS (mixedliquorvolatilesuspendedsolids, mixed liquor volatile suspended solid, MLVSS concentration, represent the concentration of Organic solid matter part in mixed solution active sludge) be stabilized between 3500-4500mg/L, the COD of the waste water discharged
cRdegradation rate is greater than 85%.
The present invention also can screen there is advantage flora for microorganism field.
Claims (2)
1. a domestication technique for aerobic condition Gradient dynamic activity mud, is characterized in that comprising:
1) according to mass ratio BOD
5: the proportions simulated wastewater of C:N:P=100:75:5:1 is as nutrient solution, for subsequent use;
2) by active sludge and step 1) gained nutrient solution adds in the sbr reactor pond of useful volume 15L, and stir aeration, under aerobic condition, within every 12 hours, change water once, be i.e. 12 hours ages of each mud;
1-6 days, changes water 3L at every turn, and control DO value is 1.5mg/L;
7-12 days, changes water 4.5L at every turn, and control DO value is 2.0mg/L;
13-18 days, changes water 6L at every turn, and control DO value is 2.5mg/L;
Each mud comprise age 10.5 hours stirring aeration, 1 hour leave standstill and 0.5 hour change water; Leaving standstill and changing the water stage, control DO value is not less than 0.2mg/L; Described water process of changing is first discharge section waste water, then adds the described nutrient solution of same volume with it; Carbon in simulated wastewater is provided by sodium-acetate, and nitrogen is provided by ammonium chloride, and phosphorus is provided by dipotassium hydrogen phosphate; Described active sludge comes from municipal sludge treatment plant; Step 2) in, along with the increase of quantity of exchanged water increases aeration rate and stirring velocity; Keep the pH value of sludge liquid in domestication process between 6.5-8.0, temperature is between 24-26 DEG C.
2. the domestication technique of aerobic condition Gradient dynamic activity mud according to claim 1, is characterized in that: described pH value is regulated by HCL or NaOH of 1mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815006.4A CN104528928B (en) | 2014-12-24 | 2014-12-24 | A kind of domestication technique of aerobic condition Gradient dynamic activity mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815006.4A CN104528928B (en) | 2014-12-24 | 2014-12-24 | A kind of domestication technique of aerobic condition Gradient dynamic activity mud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104528928A CN104528928A (en) | 2015-04-22 |
| CN104528928B true CN104528928B (en) | 2016-04-20 |
Family
ID=52844622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410815006.4A Expired - Fee Related CN104528928B (en) | 2014-12-24 | 2014-12-24 | A kind of domestication technique of aerobic condition Gradient dynamic activity mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104528928B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110713251A (en) * | 2019-11-19 | 2020-01-21 | 博天环境集团股份有限公司 | Sludge domestication device |
| CN111855947A (en) * | 2020-08-10 | 2020-10-30 | 北京石油化工学院 | Toxicity detection method based on BOD difference value before and after degradation of activated sludge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070251A (en) * | 2010-11-29 | 2011-05-25 | 哈尔滨工业大学 | Preparation method of immobilized cold resistant nitrobacteria |
| CN102433260A (en) * | 2011-10-21 | 2012-05-02 | 浙江大学舟山海洋研究中心 | Method for screening and domesticating marine oil pollutant microorganisms and use of marine oil fouling microorganisms |
-
2014
- 2014-12-24 CN CN201410815006.4A patent/CN104528928B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070251A (en) * | 2010-11-29 | 2011-05-25 | 哈尔滨工业大学 | Preparation method of immobilized cold resistant nitrobacteria |
| CN102433260A (en) * | 2011-10-21 | 2012-05-02 | 浙江大学舟山海洋研究中心 | Method for screening and domesticating marine oil pollutant microorganisms and use of marine oil fouling microorganisms |
Non-Patent Citations (1)
| Title |
|---|
| "SBR***中活性污泥的驯化";杨晓瑞;《天津科技》;20081225;第35卷(第6期);第9-10页全部内容 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104528928A (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tang et al. | Effect of aeration rate on performance and stability of algal-bacterial symbiosis system to treat domestic wastewater in sequencing batch reactors | |
| Tang et al. | Performance and mechanism of a novel algal-bacterial symbiosis system based on sequencing batch suspended biofilm reactor treating domestic wastewater | |
| CN104230097B (en) | A kind of method of aquaculture sewage disposal | |
| CN106242045B (en) | A kind of aerobic particle mud fast culture process | |
| EP3018105B1 (en) | Enhanced sewage biological nitrogen and phosphorus removal method based on polyhydroxyalkanoates metabolic regulation | |
| Yu et al. | Aerobic granular sludge treating low-strength municipal wastewater: Efficient carbon, nitrogen and phosphorus removal with hydrolysis-acidification pretreatment | |
| CN104973685B (en) | A kind of cultural method of aerobic particle mud | |
| Liu et al. | The combination of external conditioning and Ca2+ addition prior to the reintroduction of effluent sludge into SBR sharply accelerates the formation of aerobic granules | |
| Zhang et al. | Nighttime aeration mode enhanced the microalgae-bacteria symbiosis (ABS) system stability and pollutants removal efficiencies | |
| CN102583724B (en) | Method for utilizing activated sludge, ozone and magnetic field to reduce sludge | |
| CN102173506A (en) | Bioactive compound filling material | |
| CN108383239B (en) | Integrated biological treatment process for shortcut nitrification anaerobic ammonia oxidation and phosphorus removal under intermittent aeration mode | |
| CN105217911B (en) | It is a kind of to react the technique for carrying out sludge dewatering using bioleaching | |
| Liao et al. | Efficient removal mechanism and microbial characteristics of tidal flow constructed wetland based on in-situ biochar regeneration (BR-TFCW) for rural gray water | |
| CN110723812B (en) | Method for improving pH impact resistance of anaerobic ammonium oxidation particles | |
| Sabba et al. | Impact of operational strategies on a sidestream enhanced biological phosphorus removal (S2EBPR) reactor in a carbon limited wastewater plant | |
| CN108298771A (en) | A kind of pig farm refuse processing method | |
| CN104528928B (en) | A kind of domestication technique of aerobic condition Gradient dynamic activity mud | |
| CN110054284A (en) | The semi-hitrosation technique of municipal sewage treatment starts and control method | |
| Huang et al. | Nitrogen and phosphorus removal by coupling Anaerobic ammonia oxidation reaction with algal-bacterial symbiotic system | |
| CN107235553B (en) | Low-temperature aerobic granular sludge rapid culture method based on sludge incineration ash | |
| CN103601347B (en) | Domestic sewage treatment method and UAFB-EGSB coupled system quick start method | |
| CN111003816B (en) | Biochemical tail water biological denitrification method for inhibiting non-filamentous bacterium expansion | |
| CN110699313A (en) | Screening and culturing method of specific microbial flora for degrading industrial wastewater | |
| Joo et al. | Application of alcaligenes faecalis no. 4 for treatment of high-strength ammonium wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Meng Inventor after: Wan Junmin Inventor before: Wan Junmin Inventor before: Wei Meng |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20191224 |