CN110436749A - Accelerate the method for activated sludge sinking speed using magnetization micron ferroso-ferric oxide - Google Patents
Accelerate the method for activated sludge sinking speed using magnetization micron ferroso-ferric oxide Download PDFInfo
- Publication number
- CN110436749A CN110436749A CN201910545391.8A CN201910545391A CN110436749A CN 110436749 A CN110436749 A CN 110436749A CN 201910545391 A CN201910545391 A CN 201910545391A CN 110436749 A CN110436749 A CN 110436749A
- Authority
- CN
- China
- Prior art keywords
- sludge
- reactor device
- sbr reactor
- magnetization
- ferroso
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (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)
Abstract
The invention discloses a kind of methods for accelerating activated sludge sinking speed using magnetization micron ferroso-ferric oxide.Sbr reactor device is set and handles sewage and by sludge seeding in sbr reactor device, manually water distribution carries out continous way domestication to sludge later.It adds by magnetized micron ferroso-ferric oxide, is sufficiently mixed with sludge.By sedimentation experiment comparative analysis, under conditions of initial sludge concentration is essentially identical, magnetization sludge is faster than common sludge sinking speed, and the SV for magnetizing sludge is also smaller than common sludge SV.The rate of settling of the different magnetization sludge of magnetic powder dosage is also different, and with the increase of magnetic powder dosage, the rate of settling for magnetizing sludge increases, but final settlement rate and SV basically reach it is identical.The method for being accelerated activated sludge sinking speed using magnetization micron ferroso-ferric oxide that the present invention uses is improved the flocculation ability of sludge, achievees the purpose that rapid subsidence on the basis of substantially increasing the ability for magnetizing Treatment of Sludge dirt water pollutant.
Description
Technical field
The invention belongs to inorganic material and water-treatment technology field, and in particular to a kind of to utilize magnetization micron ferroso-ferric oxide
Accelerate the method for activated sludge sinking speed.The magnetic that this method is formed in conjunction with activated sludge using magnetization micron ferroso-ferric oxide
Change sludge and accelerate its sedimentation, shortens the sedimentation time, to reach ideal phosphor-removing effect.
Background technique
Activated sludge process is a kind of biological method for treating waste water based on activated sludge.Wherein sludge wadding body is by silk
Shape bacterium forms skeleton, and the microorganisms such as zoogloea and other bacteriums and other fine particle impurity are attached on this secondary skeleton, pass through
Prolonged growth and breeding, to form hard-packed floccule body.If the coherency and settling property of floccule body are because of environment
Change and deteriorate, will lead to sludge can not sink, and muddy water is difficult to separate, and situation seriously then leads to activated sludge bulking.
Typical activated sludge process is made of aeration tank, sedimentation basin, sludge recirculation system and excess sludge removal system.
Mixed liquor after activated sludge purification acts on enters secondary sedimentation tank, the activated sludge to suspend in mixed liquor and other solids
Substance precipitates be separated from water herein, and the sewage after clarification is as processing water discharge system.It is released according to aerobic phosphorus absorption, anaerobism
The principle of phosphorus, during secondary settling tank staticly settles, the phosphorus in sludge is possible to discharge sludge, and sludge settling process reaches
After a certain period of time, the phosphorus in water outlet can be exceeded
With development in science and technology, starts the domestic and foreign scholars of some and go to change the object of water, it is realized that can use magnetic fields
Physicochemical property promotes the degradation of pollutant.But it is slow to be the failure to solution sludge settling speed, the problem of dewatering difference.
Summary of the invention
The object of the present invention is to provide a kind of sides for accelerating activated sludge sinking speed using magnetization micron ferroso-ferric oxide
Method.
Thinking of the invention: 80 % and 70 % or more have been respectively reached in the removal rate that magnetization sludge meets COD and ammonia nitrogen
Under the premise of, the micron ferroso-ferric oxide after magnetization is added, is sufficiently mixed a week, magnetic powder particle surface with sludge
It is positively charged, and activated sludge is negatively charged, activated sludge can be steady by taking off under the action of magnetic powder compression double electric layer, thus
The flocculation ability for improving sludge, achievees the purpose that rapid subsidence.
Specific steps are as follows:
(1) a kind of sbr reactor device is set, and it is highly 50 cm that diameter, which is 20 cm, and total measurement (volume) is 10 L；In sbr reactor device side wall
Mud discharging mouth is arranged in 3 equidistant water outlets of upper setting, sbr reactor device bottom, and sbr reactor device uses bottom blast aeration mode,
Specifically: two micro porous aeration heads are placed in sbr reactor device bottom end, is connected on air pump, exposure is adjusted using spinner flowmeter
Gas velocity rate, to control DO concentration；The blender of one quaterfoil is set inside sbr reactor device, uses and stirs in anaerobic stages
The mode mixed be sufficiently mixed activated sludge also can when not being aerated to be reacted.
(2) sludge is tamed by the sbr reactor device that (1) is arranged, using the operation side of intermittent water inflow, intermittent drainage
Formula directlys adopt disposable water flooding regime water inlet, runs according to the idle operating condition of water inlet-aeration-stirring-precipitating-draining-；It opens
Dynamic stage running cycle set is 8 h, is respectively as follows: 6 h of aeration, 1 h of precipitating and is discharged idle 1 h, runs 3 periods daily,
Each displacement is the half of reaction solution, is discharged from the water outlet of sbr reactor device, the sludge for taking the particle of needs tiny, is abandoned
Then micro porous aeration head is placed in sludge by the relatively large substance of upper layer impurity and lower layer, open air pump and carry out bored exposing 1 to sludge
~ 2 days, 2h is stood after bored exposure, sludge is precipitated all, then supernatant is discharged, by sludge seeding in sbr reactor device
Interior, manually water distribution carries out continous way domestication to sludge later, and keeping the MLSS of sludge in sbr reactor device is 3000 ~ 4000
Mg/L is 400 ± 1 mg/L in influent COD, under conditions of ammonia nitrogen is 40 ± 0.1mg/L, runs to the removal rate of COD and ammonia nitrogen
80 % and 70 % or more are respectively reached, so far sludge acclimatization terminates.
(3) after having tamed sludge, from taken in sbr reactor device described in (1) mud mixed liquid merging container in, and to its
In add by magnetized micron ferroso-ferric oxide, be sufficiently mixed a week with mud mixed liquid, i.e., realization activated sludge it is fast
Speed sedimentation.
Artificial distribution's preparation method is as follows: C6H12O6As carbon source, ammonium chloride makees nitrogen source, and potassium dihydrogen phosphate makees phosphorus
Source, by carbon source: nitrogen source: the mass ratio of phosphorus source is that 100:5:1 is prepared, and microelement manganese sulfate and calcium chloride is added, benefit
The pH value of artificial distribution is adjusted with sodium bicarbonate.
The advantages of the method for the present invention:
The magnetized active sludge that the method for the present invention uses, the spherical bacterium for magnetizing Sludge Surface are significantly more than the ball on common sludge surface
Shape bacterium improves the flocculation ability of sludge on the basis of substantially increasing magnetization Treatment of Sludge pollutant ability, reaches quickly heavy
The purpose of drop.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of equipment therefor of the embodiment of the present invention.
Marked in the figure: 1- blender；2- aerator；3- mud discharging mouth；4- water outlet；5- air pump.
Fig. 2 is the curve graph that sludge volume changes with the sedimentation time in the embodiment of the present invention.
Fig. 3 is the curve graph that sludge blanket height changes with the sedimentation time in the embodiment of the present invention.
Specific embodiment
Embodiment:
Activated sludge used in the present embodiment is derived from the activated sludge in Guilin City's sewage treatment plant aeration tank, from sewage plant
After transporting laboratory back, the relatively large substance of upper layer impurity and lower layer is abandoned, the sludge after screening is connected using artificial distribution
Continuous formula domestication, keeping the MLSS of sludge in reactor is 3000 ~ 4000 mg/L.Activated sludge appearance physical behavior shows themselves in that face
Dark brown is presented in color, can feel some soil smells in smell.
The physicochemical property of above-mentioned artificial distribution is as shown in table 1.
1 synthetic municipal wastewater water quality indicator of table
(1) a kind of sbr reactor device is set, and it is highly 50 cm that diameter, which is 20 cm, and total measurement (volume) is 10 L.On sbr reactor device side wall
3 equidistant water outlets are set.Mud discharging mouth is arranged in sbr reactor device bottom.Sbr reactor device uses bottom blast aeration mode, tool
Body are as follows: place two micro porous aeration heads in sbr reactor device bottom end, be connected on air pump, aeration is adjusted using spinner flowmeter
Rate, to control DO concentration.The blender of one quaterfoil is set inside sbr reactor device, in anaerobic stages using stirring
Mode activated sludge is sufficiently mixed also can when not being aerated reacted.
(2) (sewage and activity are sufficiently mixed by blender 1 by the sbr reactor device processing sewage of step (1) setting
Sludge opens simultaneously air pump 5 and aerator 2, adjusts aeration rate using spinner flowmeter.Every day measures during test
The concentration variation of each pollutant in primary water outlet), by adjusting operating parameter, using the operation side of intermittent water inflow, intermittent drainage
Formula directlys adopt disposable water flooding regime water inlet, runs according to the idle operating condition of water inlet-aeration-stirring-precipitating-draining-.It opens
Dynamic stage running cycle set is 8 h, is respectively as follows: 6 h of aeration, 1 h of precipitating and is discharged idle 1 h, runs 3 periods daily.
Each displacement is the half of reaction solution, is discharged from the water outlet 4 of sbr reactor device.
(3) it takes in 5 part of 1.5 L mud mixed liquid to 5 containers from sbr reactor device described in (2), and throws respectively respectively
Add 0,0.2,0.5,0.7 and 1 g/L by magnetized micron ferroso-ferric oxide, is sufficiently mixed a week with sludge.Take 500
ML common sludge and magnetization sludge are dirty to common sludge and magnetism respectively in 500 mL graduated cylinders (diameter 5 cm, high 25.5 cm)
The infall process of mud is compared.Since preceding 15 minutes sludge carries out free sedimentation and when flocculation sedimentation, sludge decrease speed compared with
Fastly, 1 minute record primary sludge volume.After 15 minutes, sludge decrease speed obviously slows down, then 5 minutes record primary sludge
Volume.Data form is arranged, ordinate is made with sludge volume, abscissa is made with the time, draws out sludge volume and sludge blanket
Height time history plot in the entirely sedimentation period, magnetizes the volume and sludge blanket height of sludge as shown in Figures 2 and 3
Decrease speed is all larger than common sludge.The result shows that magnetization sludge is than common under conditions of initial sludge concentration is essentially identical
Sludge settling speed is fast, and the SV for magnetizing sludge is also smaller than common sludge SV.The different magnetization sludge of magnetic powder dosage sinks
Reduction of speed rate is also different, and with the increase of magnetic powder dosage, the rate of settling for magnetizing sludge increases, but final settlement rate reaches phase
Together, SV is also basically reached identical.
Claims (1)
1. a kind of method for accelerating activated sludge sinking speed using magnetization micron ferroso-ferric oxide, it is characterised in that specific steps
Are as follows:
(1) a kind of sbr reactor device is set, and it is highly 50 cm that diameter, which is 20 cm, and total measurement (volume) is 10 L；In sbr reactor device side wall
Mud discharging mouth is arranged in 3 equidistant water outlets of upper setting, sbr reactor device bottom, and sbr reactor device uses bottom blast aeration mode,
Specifically: two micro porous aeration heads are placed in sbr reactor device bottom end, is connected on air pump, exposure is adjusted using spinner flowmeter
Gas velocity rate, to control DO concentration；The blender of one quaterfoil is set inside sbr reactor device, uses and stirs in anaerobic stages
The mode mixed be sufficiently mixed activated sludge also can when not being aerated to be reacted；
(2) sludge is tamed by the sbr reactor device that (1) is arranged, using the method for operation of intermittent water inflow, intermittent drainage,
Disposable water flooding regime water inlet is directlyed adopt, is run according to the idle operating condition of water inlet-aeration-stirring-precipitating-draining-；Start rank
The section cycle of operation is set as 8 h, is respectively as follows: 6 h of aeration, 1 h of precipitating and is discharged idle 1 h, runs 3 periods daily, every time
Displacement is the half of reaction solution, is discharged from the water outlet of sbr reactor device, the sludge for taking the particle of needs tiny, and upper layer is abandoned
Then micro porous aeration head is placed in sludge by the relatively large substance of impurity and lower layer, open air pump and carry out bored exposing 1 ~ 2 to sludge
It, stands 2h after bored exposure, precipitates sludge all, then supernatant is discharged, by sludge seeding in sbr reactor device,
Manually water distribution carries out continous way domestication to sludge later, and keeping the MLSS of sludge in sbr reactor device is 3000 ~ 4000 mg/L,
It is 400 ± 1 mg/L in influent COD, under conditions of ammonia nitrogen is 40 ± 0.1mg/L, operation to the removal rate of COD and ammonia nitrogen is distinguished
Reach 80 % and 70 % or more, so far sludge acclimatization terminates；
(3) it after having tamed sludge, from being taken in sbr reactor device described in (1) in mud mixed liquid merging container, and throws thereto
Add by magnetized micron ferroso-ferric oxide, be sufficiently mixed a week with mud mixed liquid, is i.e. realization activated sludge quickly sinks
Drop；
Artificial distribution's preparation method is as follows: C6H12O6As carbon source, ammonium chloride makees nitrogen source, and potassium dihydrogen phosphate makees phosphorus source, by carbon
Source: nitrogen source: the mass ratio of phosphorus source is that 100:5:1 is prepared, and microelement manganese sulfate and calcium chloride is added, and utilizes bicarbonate
The pH value of sodium adjusting artificial distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910545391.8A CN110436749A (en) | 2019-06-22 | 2019-06-22 | Accelerate the method for activated sludge sinking speed using magnetization micron ferroso-ferric oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910545391.8A CN110436749A (en) | 2019-06-22 | 2019-06-22 | Accelerate the method for activated sludge sinking speed using magnetization micron ferroso-ferric oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110436749A true CN110436749A (en) | 2019-11-12 |
Family
ID=68428942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910545391.8A Pending CN110436749A (en) | 2019-06-22 | 2019-06-22 | Accelerate the method for activated sludge sinking speed using magnetization micron ferroso-ferric oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110436749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362401A (en) * | 2020-03-18 | 2020-07-03 | 山东大学 | Utilizing micron Fe3O4Sewage treatment method for strengthening anaerobic dynamic membrane bioreactor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09294995A (en) * | 1996-05-08 | 1997-11-18 | Kuroishi Tekko Kk | Drain treatment facility |
| CN102923866A (en) * | 2012-11-22 | 2013-02-13 | 南京大学 | Device for implementing strengthened treatment for sewage through changing magnetic field and sewage treatment method |
| CN103113002A (en) * | 2013-03-04 | 2013-05-22 | 广东新大禹环境工程有限公司 | Method for processing organic sewage |
| CN102701449B (en) * | 2012-05-15 | 2013-11-13 | 北京工业大学 | Magnetic activated sludge reactor and method for realizing short-cut denitrification |
-
2019
- 2019-06-22 CN CN201910545391.8A patent/CN110436749A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09294995A (en) * | 1996-05-08 | 1997-11-18 | Kuroishi Tekko Kk | Drain treatment facility |
| CN102701449B (en) * | 2012-05-15 | 2013-11-13 | 北京工业大学 | Magnetic activated sludge reactor and method for realizing short-cut denitrification |
| CN102923866A (en) * | 2012-11-22 | 2013-02-13 | 南京大学 | Device for implementing strengthened treatment for sewage through changing magnetic field and sewage treatment method |
| CN103113002A (en) * | 2013-03-04 | 2013-05-22 | 广东新大禹环境工程有限公司 | Method for processing organic sewage |
Non-Patent Citations (3)
| Title |
|---|
| 任月明等: "纳米磁粉生物反应系统处理效能研究", 《哈尔滨工业大学学报》 * |
| 尹儿琴等: "《水质工程实验技术》", 30 November 2017, 郑州：黄河水利出版社 * |
| 王方园等: "《水污染控制实验教程》", 31 March 2015, 武汉：武汉大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362401A (en) * | 2020-03-18 | 2020-07-03 | 山东大学 | Utilizing micron Fe3O4Sewage treatment method for strengthening anaerobic dynamic membrane bioreactor |
| CN111362401B (en) * | 2020-03-18 | 2021-06-22 | 山东大学 | Utilizing micron Fe3O4Sewage treatment method for strengthening anaerobic dynamic membrane bioreactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kent et al. | State of the art of aerobic granulation in continuous flow bioreactors | |
| JP4804888B2 (en) | Granular microbial sludge generation method | |
| CN105800784B (en) | The application process of improvement UCT segmental influent high-efficiency biological nitrogen and phosphorus removal devices based on DEAMOX technologies | |
| CN105776524B (en) | Aerobic particle mud strengthens startup and stable operation method | |
| CN106115915A (en) | Low C/N is than the apparatus and method of city domestic sewage short-cut denitrification/short distance nitration Anammox biomembrane process | |
| CN109970289A (en) | A kind of urban wastewater treatment mentions mark advanced treatment process and device | |
| CN107601666A (en) | A kind of packing type country sewage integrated treatment unit and technique | |
| CN107601669A (en) | A kind of method based on MBBR technique upgrade expanding biochemistry pools | |
| Corsino et al. | Achieving complete nitrification below the washout SRT with hybrid membrane aerated biofilm reactor (MABR) treating municipal wastewater | |
| Chatterjee et al. | Development of anammox process for removal of nitrogen from wastewater in a novel self-sustainable biofilm reactor | |
| CN108658377A (en) | A kind of while denitrogenation dephosphorizing total flood sewage water treatment method | |
| CN209368079U (en) | Integrated sewage treating apparatus | |
| CN107601781A (en) | A kind of sewage disposal system | |
| CN107265791A (en) | Kitchen garbage slurry fermentation waste water processing unit | |
| CN110436749A (en) | Accelerate the method for activated sludge sinking speed using magnetization micron ferroso-ferric oxide | |
| CN110156177A (en) | Intermittent vertical current constructed wetland denitrogenation imitative experimental appliance and experimental method | |
| CN108328872A (en) | The nitrogenous low carbon-nitrogen ratio sewage processing unit of novel height and its method of adjustment | |
| CN110540348B (en) | High-efficiency sewage nitrogen and phosphorus removal treatment process and equipment | |
| Wei et al. | Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor | |
| CN209024270U (en) | A kind of double dirt water treatment systems of synchronous denitrification denitrogenation dephosphorizing | |
| CN209039154U (en) | A kind of device of fast realizing anaerobic ammonium oxidation granulation | |
| CN201261748Y (en) | Chemical dephosphorization apparatus based on anoxic-anaerobic-oxidation ditch | |
| CN106865753B (en) | A kind of processing unit and processing method removing nano-scale particle in waste water based on aerobic particle mud | |
| JP2011224569A (en) | Granular microbial sludge generation method | |
| CN206204118U (en) | For the processing system of black and odorous water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |