CN107522353A - A kind of activated sludge membrane capacitance Integrated Processing Unit and technique that high-salt wastewater is handled using Facultative Halophiles - Google Patents
A kind of activated sludge membrane capacitance Integrated Processing Unit and technique that high-salt wastewater is handled using Facultative Halophiles Download PDFInfo
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- CN107522353A CN107522353A CN201710705656.7A CN201710705656A CN107522353A CN 107522353 A CN107522353 A CN 107522353A CN 201710705656 A CN201710705656 A CN 201710705656A CN 107522353 A CN107522353 A CN 107522353A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- 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
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a kind of activated sludge membrane capacitance Integrated Processing Unit and technique that high-salt wastewater is handled using Facultative Halophiles；Wherein handling process includes：Screen microorganisms, activated sludge process and membrane capacitance deionization method；Activated sludge process is combined by the present invention with membrane capacitance facture, because the high salinity in waste water has suppression and deleterious effects to microorganism and membrane capacitance component, largely effect on the treatment effeciency of activated sludge process, therefore this technique is by filtering out a kind of bacterial strain for having higher tolerance to high salinity, put into active sludge processing system, improve treatment effeciency.By the pretreated waste water of activated sludge process, water outlet enters membrane capacitance deionization system and carries out further desalting processing.The technique improves the treatment effeciency of activated sludge process by adding Facultative Halophiles, and is combined with membrane capacitance deionization system, and desalting efficiency further improves, and reduces energy consumption and cost.
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of activity dirt that high-salt wastewater is handled using Facultative Halophiles
Mud-membrane capacitance Integrated Processing Unit and technique.
Background technology
High-salt wastewater refer to total saliferous mass fraction at least 1% waste water its essentially from chemical plant and oil and natural gas
This waste water of such as collection processing contain many kinds of substance (including, salt oil, organic heavy metal and radioactive substance).Brine waste
The way of production it is extensive, water also increases year by year.Removing the organic pollution in saline sewage influences to caused by environment to pass
It is important.Handled using physico-chemical process, investment is big, and operating cost is high, and is difficult to reach expected clean-up effect.Using bioanalysis to this
Class waste water is handled, and is still the emphasis studied both at home and abroad at present.
High-salt wastewater is different from other other kinds of waste water, and wherein component difference can't be too big, contained salts substances
Mostly CI-、SO4 2-、Na+、Ca2+Deng salinity material.Although these ions all provide good growth environment for microorganism,
If these constituent concentrations are too high, generation suppression and toxic action that will be to microorganism.It is mainly manifested in salinity height, infiltration
Pressure is high, microbial cell dehydration causes cellular plasm sharp；Salting out reduces dehydrogenase activity；Chlorion height is to bacterium
Toxic effect；Salinity is high, the density increase of waste water, and activated sludge easily floats loss, so as to have a strong impact on biological treatment system
The clean-up effect of system.Therefore it is a feasible way for improving biological treatment that cultivation, which has the bacterial strain of higher tolerance to salinity,
Footpath.
For high-salt wastewater, there is the bacterial strain of higher tolerance to salinity by culture, improve traditional active sludge biology
The treatment effeciency of facture, majority of organic pollutants in water body is removed, further carried out by membrane capacitance deionization technology
Desalting processing, reduce salt content.
The content of the invention
There are suppression and toxic action to microorganism to solve the problems, such as in high-salt wastewater in the prior art that salinity is too high,
The present invention provides a kind of activated sludge-membrane capacitance Integrated Processing Unit and technique that high-salt wastewater is handled using Facultative Halophiles, screening
A kind of microorganism for having higher tolerance to salinity is cultivated, puts into traditional active sludge processing system, can improve at its
Efficiency is managed, desalting processing is further carried out by membrane capacitance deionization technology, reduces salt content.Meanwhile by activated sludge
Organic pollutants in water body after method processing etc. is greatly reduced, and slow down influences on the membrane pollution problem in subsequent film processing procedure.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of activated sludge-membrane capacitance Integrated Processing Unit that high-salt wastewater is handled using Facultative Halophiles, including active sludge treatment
System and membrane capacitance deionization system, the active sludge processing system include pass sequentially through pipeline 8 connection be provided with into water
Primary sedimentation pond 1, aeration tank 2, the secondary sedimentation tank 3 of mouth 13, the secondary sedimentation tank 3 are also connected by sludge return pipe 4
Pipeline 8 between primary sedimentation pond 1 and aeration tank 2 forms backflow, and the secondary sedimentation tank 3 is also connected with mud discharging mouth 12；Institute
State membrane capacitance component 7 and water outlet fluid reservoir 9 that membrane capacitance deionization system includes connecting by pipeline 8, the membrane capacitance component 7
Dc source 5 is connected, the water outlet fluid reservoir 9 is connected with the electric conductivity detector 10 of controller 11, the electrical conductivity inspection
Survey instrument 10 and record water outlet conductivity in real time and change and transmit to controller 11, the membrane capacitance component 7 and pass through the connecting secondary of pipeline 8
The delivery port 14 of sedimentation basin 3.
Further, it is provided with water pump 6 on the pipeline 8 between the secondary sedimentation tank 3 and membrane capacitance component 7.
A kind of activated sludge-membrane capacitance comprehensive processing technique that high-salt wastewater is handled using Facultative Halophiles, is comprised the following steps：
S1, screening microorganisms：The Facultative Halophiles to salinity with height endurability are cultivated in screening；
S2, activated sludge process：It is first in the Facultative Halophiles input active sludge processing system that step S1 screenings are cultivated
In sedimentation basin 1, high-salt wastewater enters primary sedimentation pond 1 by water inlet 13, and high-salt wastewater is located in the presence of Facultative Halophiles
Reason, exposure is mixed into after the activated sludge that the waste water of primary deposition flows back with secondary sedimentation tank 3 is by sludge return pipe 4
Gas pond 2, then the waste water of primary deposition with flow back activated sludge by mechanical aeration effect mixed；Enter two after aeration
Organic concentration reduces in the waste water of secondary sedimentation basin 3, and slow down influences on membrane pollution problem in subsequent film capacitive deionization method；It is described
Activated sludge process can greatly improve its treatment effeciency by adding Facultative Halophiles；
S3, membrane capacitance deionization method：Waste water after aeration into secondary sedimentation tank 3 enters membrane capacitance group in the presence of water pump 6
Part 7 carries out desalting processing, and the dc source 5 is that membrane capacitance component 7 provides voltage；Electric conductivity detector 10 records water outlet in real time
Conductivity variations are simultaneously transmitted to controller 11, when water outlet conductivity value is with intaking consistent, electrode adsorption saturation, carry out reversal connection；
Membrane capacitance deionization method equally has preferable desalting efficiency to the water body of higher salt concentrations.
Further, for Facultative Halophiles by being changed to traditional microbiological screening technique, configuration is different in the step S1
The medium culture microorganism of salt concentration gradient, the Facultative Halophiles for having height endurability to salinity are obtained by purifies and separates.
Further, the Facultative Halophiles cultivated under high salinity medium have higher tolerance to salinity, and it is higher
Grown under salinity.
Further, aeration time is 6h, return sludge ratio 25%-50%, pH 7-8.5, temperature 20- in the step S2
40℃。
Compared with prior art, the invention has the advantages that：
The present invention takes salt tolerant biological treatment, improves the treatment effeciency of activated sludge process, and cost is relatively low；
High-salt wastewater of the present invention after Wastewater Treated by Activated Sludge Process, dissolved organic matter and heavy metal ion equal size in water body
Reduce, the formation to fouling membrane in follow-up membrane capacitance processing procedure has preferable control effect；
High-salt wastewater of the present invention after Wastewater Treated by Activated Sludge Process, the high salinity in water body can be taken off by membrane capacitance method
Salt, energy consumption is low, and treatment effeciency is higher.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Wherein：1- primary sedimentation ponds, 2- aeration tanks, 3- secondary sedimentation tanks, 4- sludge return pipes, 5- dc sources, 6- water pumps,
7- membrane capacitance components, 8- pipelines, 9- water outlet fluid reservoirs, 10- electric conductivity detectors, 11- controllers, 12- mud discharging mouths, 13-
Water inlet, 14- delivery ports.
Embodiment
The present invention is further described with reference to embodiment.
As shown in figure 1, a kind of activated sludge-membrane capacitance Integrated Processing Unit that high-salt wastewater is handled using Facultative Halophiles, bag
Active sludge processing system and membrane capacitance deionization system are included, the active sludge processing system connects including passing sequentially through pipeline 8
The primary sedimentation pond 1 for being provided with water inlet 13, aeration tank 2, the secondary sedimentation tank 3 connect, the secondary sedimentation tank 3 also pass through sludge
The pipeline 8 that reflux line 4 is connected between primary sedimentation pond 1 and aeration tank 2 forms backflow, and the secondary sedimentation tank 3 is also connected with dirt
Mud floss hole 12；The membrane capacitance deionization system includes the membrane capacitance component 7 and water outlet fluid reservoir 9 connected by pipeline 8, institute
To state membrane capacitance component 7 and connect dc source 5, the water outlet fluid reservoir 9 is connected with the electric conductivity detector 10 of controller 11,
The electric conductivity detector 10 records water outlet conductivity in real time to be changed and transmits to controller 11, the membrane capacitance component 7 and pass through
The delivery port 14 of the connecting secondary sedimentation basin 3 of pipeline 8；Set on pipeline 8 between the secondary sedimentation tank 3 and membrane capacitance component 7
There is water pump 6.
Embodiment 1
A kind of activated sludge-membrane capacitance comprehensive processing technique that high-salt wastewater is handled using Facultative Halophiles, is comprised the following steps：
S1, screening microorganisms：The Facultative Halophiles to salinity with height endurability are cultivated in screening；Salt tolerant in the step S1
Bacterium configures the medium culture microorganism of different salt concentration gradients, passed through by being changed to traditional microbiological screening technique
Purifies and separates obtain the Facultative Halophiles for having height endurability to salinity, and the Facultative Halophiles cultivated under high salinity medium have to salinity
Higher tolerance, it grows under higher salinity；Different salt concentration gradient 1g/L are configured, 2g/L, 3g/L culture medium are cultivated
Microorganism, obtain under high salinity also can normal growth microorganism-Facultative Halophiles；
S2, activated sludge process：It is first in the Facultative Halophiles input active sludge processing system that step S1 screenings are cultivated
In sedimentation basin 1, high-salt wastewater（PROTEIN B SA100mg/L, sodium chloride 2g/L, ammonia nitrogen 25mg/L, COD400mg/ in simulated wastewater
L）Primary sedimentation pond 1 is entered by water inlet 13, high-salt wastewater is handled in the presence of Facultative Halophiles, by primary deposition
The activated sludge that waste water flows back with secondary sedimentation tank 3 is then first heavy by being mixed into aeration tank 2 after sludge return pipe 4
The waste water in shallow lake is mixed with the activated sludge to flow back by mechanical aeration effect；Aeration time is 6h, return sludge ratio 25%,
PH7,20 DEG C of temperature；Reduced after aeration into organic concentration in the waste water of secondary sedimentation tank 3, wherein：COD clearances reach
95%, ammonia nitrogen removal frank 92%, BSA clearances 83%, slow down influences on membrane pollution problem in subsequent film capacitive deionization method；It is described
Activated sludge process can greatly improve its treatment effeciency by adding Facultative Halophiles；
S3, membrane capacitance deionization method：Waste water after aeration into secondary sedimentation tank 3 enters membrane capacitance group in the presence of water pump 6
Part 7 carries out desalting processing, and the dc source 5 is that membrane capacitance component 7 provides voltage；Electric conductivity detector 10 records water outlet in real time
Conductivity variations are simultaneously transmitted to controller 11, when water outlet conductivity value is with intaking consistent, electrode adsorption saturation, carry out reversal connection；
The μ S/cm of initial conductivity 7800, desalination terminate the μ S/cm of electrical conductivity 4600, and clearance 68%, desalting efficiency is higher.By for a long time
Desalting processing after, desalting efficiency declines unobvious, and fouling membrane synthesis speed is more slow.Using Facultative Halophiles activated sludge process with
Membrane capacitance method, which combines, can effectively handle high-salt wastewater；Membrane capacitance deionization method equally has preferably to the water body of higher salt concentrations
Desalting efficiency.
Embodiment 2
A kind of activated sludge-membrane capacitance comprehensive processing technique that high-salt wastewater is handled using Facultative Halophiles, is comprised the following steps：
S1, screening microorganisms：The Facultative Halophiles to salinity with height endurability are cultivated in screening；Salt tolerant in the step S1
Bacterium configures the medium culture microorganism of different salt concentration gradients, passed through by being changed to traditional microbiological screening technique
Purifies and separates obtain the Facultative Halophiles for having height endurability to salinity, and the Facultative Halophiles cultivated under high salinity medium have to salinity
Higher tolerance, it grows under higher salinity；Different salt concentration gradient 1g/L are configured, 2g/L, 3g/L culture medium are cultivated
Microorganism, obtain under high salinity also can normal growth microorganism-Facultative Halophiles；
S2, activated sludge process：It is first in the Facultative Halophiles input active sludge processing system that step S1 screenings are cultivated
In sedimentation basin 1, high-salt wastewater（PROTEIN B SA100mg/L, sodium chloride 2g/L, ammonia nitrogen 25mg/L, COD400mg/ in simulated wastewater
L）Primary sedimentation pond 1 is entered by water inlet 13, high-salt wastewater is handled in the presence of Facultative Halophiles, by primary deposition
The activated sludge that waste water flows back with secondary sedimentation tank 3 is then first heavy by being mixed into aeration tank 2 after sludge return pipe 4
The waste water in shallow lake is mixed with the activated sludge to flow back by mechanical aeration effect；Aeration time is 6h, return sludge ratio 35%,
PH8.0,30 DEG C of temperature；Reduced after aeration into organic concentration in the waste water of secondary sedimentation tank 3, wherein：COD clearances reach
95%, ammonia nitrogen removal frank 92%, BSA clearances 83%, slow down influences on membrane pollution problem in subsequent film capacitive deionization method；It is described
Activated sludge process can greatly improve its treatment effeciency by adding Facultative Halophiles；
S3, membrane capacitance deionization method：Waste water after aeration into secondary sedimentation tank 3 enters membrane capacitance group in the presence of water pump 6
Part 7 carries out desalting processing, and the dc source 5 is that membrane capacitance component 7 provides voltage；Electric conductivity detector 10 records water outlet in real time
Conductivity variations are simultaneously transmitted to controller 11, when water outlet conductivity value is with intaking consistent, electrode adsorption saturation, carry out reversal connection；
The μ S/cm of initial conductivity 7800, desalination terminate the μ S/cm of electrical conductivity 4600, and clearance 68%, desalting efficiency is higher.By for a long time
Desalting processing after, desalting efficiency declines unobvious, and fouling membrane synthesis speed is more slow.Using Facultative Halophiles activated sludge process with
Membrane capacitance method, which combines, can effectively handle high-salt wastewater；Membrane capacitance deionization method equally has preferably to the water body of higher salt concentrations
Desalting efficiency.
Embodiment 3
A kind of activated sludge-membrane capacitance comprehensive processing technique that high-salt wastewater is handled using Facultative Halophiles, is comprised the following steps：
S1, screening microorganisms：The Facultative Halophiles to salinity with height endurability are cultivated in screening；Salt tolerant in the step S1
Bacterium configures the medium culture microorganism of different salt concentration gradients, passed through by being changed to traditional microbiological screening technique
Purifies and separates obtain the Facultative Halophiles for having height endurability to salinity, and the Facultative Halophiles cultivated under high salinity medium have to salinity
Higher tolerance, it grows under higher salinity；Different salt concentration gradient 1g/L are configured, 2g/L, 3g/L culture medium are cultivated
Microorganism, obtain under high salinity also can normal growth microorganism-Facultative Halophiles；
S2, activated sludge process：It is first in the Facultative Halophiles input active sludge processing system that step S1 screenings are cultivated
In sedimentation basin 1, high-salt wastewater（PROTEIN B SA100mg/L, sodium chloride 2g/L, ammonia nitrogen 25mg/L, COD400mg/ in simulated wastewater
L）Primary sedimentation pond 1 is entered by water inlet 13, high-salt wastewater is handled in the presence of Facultative Halophiles, by primary deposition
The activated sludge that waste water flows back with secondary sedimentation tank 3 is then first heavy by being mixed into aeration tank 2 after sludge return pipe 4
The waste water in shallow lake is mixed with the activated sludge to flow back by mechanical aeration effect；Aeration time is 6h, return sludge ratio 50%,
PH8.5,40 DEG C of temperature；Reduced after aeration into organic concentration in the waste water of secondary sedimentation tank 3, wherein：COD clearances reach
95%, ammonia nitrogen removal frank 92%, BSA clearances 83%, slow down influences on membrane pollution problem in subsequent film capacitive deionization method；It is described
Activated sludge process can greatly improve its treatment effeciency by adding Facultative Halophiles；
S3, membrane capacitance deionization method：Waste water after aeration into secondary sedimentation tank 3 enters membrane capacitance group in the presence of water pump 6
Part 7 carries out desalting processing, and the dc source 5 is that membrane capacitance component 7 provides voltage；Electric conductivity detector 10 records water outlet in real time
Conductivity variations are simultaneously transmitted to controller 11, when water outlet conductivity value is with intaking consistent, electrode adsorption saturation, carry out reversal connection；
The μ S/cm of initial conductivity 7800, desalination terminate the μ S/cm of electrical conductivity 4600, and clearance 68%, desalting efficiency is higher.By for a long time
Desalting processing after, desalting efficiency declines unobvious, and fouling membrane synthesis speed is more slow.Using Facultative Halophiles activated sludge process with
Membrane capacitance method, which combines, can effectively handle high-salt wastewater；Membrane capacitance deionization method equally has preferably to the water body of higher salt concentrations
Desalting efficiency.
Activated sludge process is combined by the present invention with membrane capacitance facture, because the high salinity in waste water is to microorganism
There are suppression and deleterious effects with membrane capacitance component, largely effect on the treatment effeciency of activated sludge process, therefore this technique passes through screening
Go out a kind of bacterial strain for having higher tolerance to high salinity, put into active sludge processing system, improve treatment effeciency.Through making a living
Property the pretreated waste water of Treatment of Sludge method, water outlet enters membrane capacitance deionization system and carries out further desalting processing.The technique
The treatment effeciency of activated sludge process is improved by adding Facultative Halophiles, and is combined with membrane capacitance deionization system, desalination effect
Rate further improves, and reduces energy consumption and cost.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
- A kind of 1. activated sludge-membrane capacitance Integrated Processing Unit that high-salt wastewater is handled using Facultative Halophiles, it is characterised in that：Including Active sludge processing system and membrane capacitance deionization system, the active sludge processing system include passing sequentially through pipeline（8）Even What is connect is provided with water inlet（13）Primary sedimentation pond（1）, aeration tank（2）, secondary sedimentation tank（3）, the secondary sedimentation tank（3） Also pass through sludge return pipe（4）Connect primary sedimentation pond（1）And aeration tank（2）Between pipeline（8）Formed and flowed back, described two Secondary sedimentation basin（3）It is also connected with mud discharging mouth（12）；The membrane capacitance deionization system includes passing through pipeline（8）The film electricity of connection Hold component（7）With water outlet fluid reservoir（9）, the membrane capacitance component（7）Connect dc source（5）, the water outlet fluid reservoir（9）Even Connect and be provided with controller（11）Electric conductivity detector（10）, the electric conductivity detector（10）Record water outlet conductivity becomes in real time Change and transmit to controller（11）, the membrane capacitance component（7）Pass through pipeline（8）Connecting secondary sedimentation basin（3）Delivery port （14）.
- 2. activated sludge-membrane capacitance Integrated Processing Unit according to claim 1 that high-salt wastewater is handled using Facultative Halophiles, It is characterized in that：The secondary sedimentation tank（3）With membrane capacitance component（7）Between pipeline（8）On be provided with water pump（6）.
- A kind of 3. activated sludge-membrane capacitance General Office according to claim 1 or 2 that high-salt wastewater is handled using Facultative Halophiles Manage the handling process of device, it is characterised in that comprise the following steps：S1, screening microorganisms：The Facultative Halophiles to salinity with height endurability are cultivated in screening；S2, activated sludge process：It is first in the Facultative Halophiles input active sludge processing system that step S1 screenings are cultivated Sedimentation basin（1）Interior, high-salt wastewater passes through water inlet（13）Into primary sedimentation pond（1）, high-salt wastewater is in the presence of Facultative Halophiles Handled, by the waste water and secondary sedimentation tank of primary deposition（3）The activated sludge of backflow passes through sludge return pipe（4）Afterwards It is mixed into aeration tank（2）, then the waste water of primary deposition with flow back activated sludge by mechanical aeration effect mixed； Enter secondary sedimentation tank after aeration（3）Waste water in organic concentration reduce；S3, membrane capacitance deionization method：Enter secondary sedimentation tank after aeration（3）Waste water in water pump（6）In the presence of enter film electricity Hold component（7）Carry out desalting processing, the dc source（5）For membrane capacitance component（7）Voltage is provided；Electric conductivity detector（10） Record water outlet conductivity changes and transmitted to controller in real time（11）, when water outlet conductivity value is with intaking consistent, electrode adsorption Saturation, carry out reversal connection.
- 4. activated sludge-membrane capacitance comprehensive processing technique according to claim 3 that high-salt wastewater is handled using Facultative Halophiles, Characterized in that, Facultative Halophiles configure different salinity by being changed to traditional microbiological screening technique in the step S1 The medium culture microorganism of gradient, the Facultative Halophiles for having height endurability to salinity are obtained by purifies and separates.
- 5. activated sludge-membrane capacitance comprehensive processing technique according to claim 4 that high-salt wastewater is handled using Facultative Halophiles, Characterized in that, the Facultative Halophiles cultivated under high salinity medium have higher tolerance to salinity, it is under higher salinity Growth.
- 6. activated sludge-membrane capacitance comprehensive processing technique according to claim 3 that high-salt wastewater is handled using Facultative Halophiles, Characterized in that, aeration time is 6h in the step S2, and return sludge ratio 25%-50%, pH 7-8.5,20-40 DEG C of temperature.
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|---|---|---|---|---|
| CN1715217A (en) * | 2004-07-02 | 2006-01-04 | 桂林工学院 | Process for removing nitrogen and phosphor from sewage capable of being built by separate periods |
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