CN105152314B - The colonization method of floating stuffing in a kind of high-salt wastewater MBBR processing systems - Google Patents
The colonization method of floating stuffing in a kind of high-salt wastewater MBBR processing systems Download PDFInfo
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- CN105152314B CN105152314B CN201510580959.1A CN201510580959A CN105152314B CN 105152314 B CN105152314 B CN 105152314B CN 201510580959 A CN201510580959 A CN 201510580959A CN 105152314 B CN105152314 B CN 105152314B
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- 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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
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Abstract
The present invention is a kind of colonization method of floating stuffing in high-salt wastewater MBBR processing systems, the method is to addition halophile microbial inoculum in MBBR reactors, floating stuffing is set to be in fluidized state by aeration, by microbial biomass and growth of microorganism environment in spoil disposal and sludge reflux control system, so as to promote biofilm type microorganism species to occupy advantage and be attached to filler surface, and finally go out biomembrane in filler superficial growth；And salt concentration range is consistent with high-salt wastewater salinity range in MBBR reactors during floating stuffing biofilm.Using the inventive method, the salt organic waste water high that salinity is 1% ~ 10% can be processed, expand the range of application of MBBR techniques.
Description
Technical field
The invention belongs to high-salt wastewater processing technology field, and in particular to suspended in a kind of high-salt wastewater MBBR processing systems
The colonization method of filler, especially can directly realize highly salt containing organic waste water MBBR processing systems under the conditions of specific salinity high
Rapid biofilm.
Background technology
High-salt wastewater is the great class waste water of current intractability, and total amount is huge and has the trend of cumulative year after year, always
Salt content >=1%, sometimes even up to 15% ~ 30%, it results from chemical industry, pharmacy, process hides, food, oil recovery, marine product and adds extensively
In numerous industrial practices such as work, seawater substitute.Additionally, also contain a large amount of poisonous and harmfuls, hardly degraded organic substance in waste water, if without
Treatment is directly discharged, and greatly destruction will certainly be caused to aqueous bio, Drinking Water and industrial and agricultural production water.Physico-chemical process
Treatment too late biochemical process because of its energy consumption higher and secondary pollution problems, directly processes saliferous high and gives up using biochemical process
Water, will substantially reduce investment and the operating cost of enterprise.
High salt biochemical treatment is related to activated sludge process and biomembrance process, and research shows, biomembrance process relative activity sludge
It is with the obvious advantage, microorganism is bonded to specific support or filler by different methods, it is difficult to outflow with water, the height of formation
Salt microbial bacteria group structure is more complicated, species is more various, and treatment effeciency and stability are higher.And the core of biomembrance process is then
Be how structure biomembrane system for handling rapidly and efficiently, i.e. microorganisms with specific functions how film forming and be quickly attached to carrier or
On filler.But not using the common biomembrane process of halophile, its salt resistance ability is not enough and treatment effeciency can be with water inlet salt
The increase of degree and decline, the suitable salt bacterium of inoculation can strengthen treatment effect of the common biomembrane process to high-salt wastewater.
MBBR is the perfect adaptation of bio-contact oxidation and biological fluidized bed, and the suspending type biological film of formation is improving
System biomass while, strengthen contact of the pollution medium with microorganism, while solution static bed biomembrane method need to periodically backwash,
The complex operations problem such as cleaning filtrate and replacing aerator.The core of MBBR Effec-tive Functions is the rapid biofilm of floating stuffing, mesh
It is preceding to study the film forming for being concentrated mainly on salinity activated sludge below 3% ~ 5%, and tamed and dociled by the step of salinity and organic loading
Change, progressively biofilm, film forming period is relatively long, the high salt biology film system of formation is only capable of directly processing height of the salinity less than 5%
Salt waste water, and the stability of a system, easily by the interference such as variation water quality, operating condition, with continuing to lift up for salinity, system will appear from
The phenomenons such as demoulding, unstability.
The content of the invention
The invention aims to solve that the current high salt biochemical system biofilm cycle is long, biomembrane salt resistance ability not enough,
The problems such as treatment effeciency is not high, proposes that one kind, by being inoculated with halophile, directly realizes MBBR treatment under specific salinity high
The method of system suspension biofilm, shortens the biofilm cycle, while its salt resistance ability is widened to 10%, and energy stability and high efficiency
The actual highly salt containing organic waste water of reason.
Meaning halophile of the invention, refers to adapt to hypersaline environment and can be metabolized in normal growth under hypersaline environment
Microorganism, including the bacterium of thermophilic salt and salt tolerant, fungi, ancient bacterium, protozoan, metazoa and other microorganisms.
The technical solution adopted for the present invention to solve the technical problems is：Suspended in a kind of high-salt wastewater MBBR processing systems
The colonization method of filler, is characterized in：Halophile microbial inoculum is added in MBBR reactors, makes the floating stuffing be in by aeration
Fluidized state, by microbial biomass and growth of microorganism environment in spoil disposal and sludge reflux control system, so as to promote biofilm type
Microorganism species occupy advantage and are attached to filler surface, and it is final go out biomembrane in filler superficial growth, and floating stuffing is hung
Salt concentration range is consistent with high-salt wastewater salinity range in MBBR reactors in membrane process, and methods described is real according to the following steps
It is existing：
（1）According to actual high-salt wastewater water quality characteristic, by the halophile microbial inoculum after preliminary culture, domestication add to
In MBBR reactors, inoculum density 2 ~ 6g/L, SV3010%~40%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element needed for biological, aeration operation 24 ~ 48h, 2 ~ 6mg/L of dissolved oxygen in control system, pH 6.0 ~ 9.0,
15 ~ 45 DEG C of water temperature；
（3）After aeration terminates, start to autogamy or actual high-salt wastewater is pumped into MBBR reactors, volumetric loading control of intaking
System is in 0.2 ~ 1.0kgCOD/ (m3.d), water outlet overflow is to sedimentation basin, and is hung according to suspended sludge concentration in system and floating stuffing
Film situation, carries out the control of spoil disposal and sludge reflux, promotes biofilm type halophile to occupy advantage and fast filming；
（4）Treat floating stuffing color change and there is film to adhere to, while when COD clearances are up to more than 40%, by 5% ~ 20%
Ratio steps up influent load, and increases aeration rate so that biomembrane is thickened and Bacterial community, diversity and treatment efficiency are obtained
To strengthen, microscopy can be observed protozoan and metazoa, biofilm success.
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：The halophile microbial inoculum can be using any one obtained in disclosed in the prior art or open method
Plant halophile microbial inoculum, it is preferred to use number of patent application is that method is prepared described in 201310540099.X, the suitable salt
Microbial bacterial agent, can strengthen the biofilm of floating stuffing, by microbial biomass and micro- life in spoil disposal and sludge reflux control system
Thing growing environment, promotes biofilm type microorganism species to occupy advantage, directly realizes that saliferous high is organic under the conditions of specific salinity high
The rapid biofilm of waste water MBBR processing systems, fundamentally strengthens the biofilm of floating stuffing, shortens the biofilm cycle and improve treatment
Performance.
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：The step（1）Middle inoculum density is 3 ~ 5g/L, SV30 25%~35%。
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：MBBR reactors water inlet salinity is 1% ~ 10%.
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：Mixed liquor salinity is 1% ~ 10% in MBBR reactors.
Directly carried out under 1% ~ 10% high salt conditions, it is simple, easy compared to traditional salinity domestication mode more rapid, step
In operation, and the salt tolerant level of existing biofilms is improved, while the high salt biofilm treatment system for building more is stablized, had
Wide applicability, is a kind of rapid biofilm method suitable for various high-salt wastewater MBBR techniques.
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：The floating stuffing be selected from polyethylene, polypropylene, polyurethane or addition enzymatic agent, hydrophilic radical and other change
The hollow circular cylinder or porous spinning ball of property material.
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：The rate that adds of the floating stuffing is 20% ~ 60%；
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：The rate that adds of the floating stuffing is 35% ~ 45%；
The colonization method of floating stuffing, further preferred in a kind of high-salt wastewater MBBR processing systems of the present invention
Technical scheme is：Biofilm culture can be using synchronous training method, it would however also be possible to employ asynchronous training method.Synchronous training method is
Biofilm is directly carried out using actual high-salt wastewater, the culture of biomembrane and domestication are synchronously carried out during biofilm；Asynchronous culture is tamed and dociled
Change carries out preliminary biofilm by the high-salt wastewater of autogamy first, recycles actual high-salt wastewater to be tamed, progressively enhancing life
The stability and treatment effeciency of thing film.
The floating stuffing for halophile attachment added in MBBR reactors in the present invention, during its shape can be
Hollow cylinder（Concentric regular hexagon cylinder, outside is nested with 1 cylindrical drum, between regular hexagon cylinder and regular hexagon cylinder and cylinder
There is support frame to connect between cylinder, the outside of middle regular hexagon cylinder is stuck up along many tails of different circumferentially extendings, the horizontal stroke of outer circle column casing
Section is joined end to end by multiple circular arcs and formed）Or porous spinning ball（Bilayer sphere inside and outside point, outside is hollow fish netted ball
Body, inside is spinning ball, and there is one reinforcing ring at the middle part of outer hollow ball along whole girth）.
Compared with prior art, the present invention is by coupling halophile microbial inoculum and MBBR techniques, using being different from tradition
Biofilm culture and acclimation, the rapid biofilm of floating stuffing is directly realized under specific high salt conditions, and improve biomembrane
Salt resistance ability, treatment effect and the stability of a system.Its advantage is mainly manifested in：
（1）By being inoculated with halophile microbial inoculum, further strengthen the biofilm of floating stuffing, and make full use of MBBR to react
The advantage of device, realizes quick attachment and the film forming of halophile；
（2）MBBR processing systems need not directly be realized under the conditions of salinity 1% ~ 10% using the biofilm mode of salinity domestication
The rapid biofilm of floating stuffing, and can stability and high efficiency the actual high-salt wastewater for the treatment of；
（3）Based on the method for the invention, it is possible to achieve the quick startup of high salt MBBR processing systems.
Specific embodiment
Technical scheme is clearly and completely described below, one is entered in order to those skilled in the art
Step ground understands the present invention, without constituting the limitation to its right.Obviously, described embodiment is only a real part of the invention
Example is applied, rather than whole embodiments.Therefore, those skilled in the art is obtained under the premise of creative work is not made
Every other embodiment, belong to protection scope of the present invention；Additionally, understanding a kind of high-salt wastewater MBBR treatment of the invention
In system under the colonization method and implementation steps of floating stuffing, substantial amounts of supplement or improvement can be made, these supplement or improve
Should also be as being included within protection scope of the present invention.
A kind of embodiment 1, the colonization method of floating stuffing in high-salt wastewater MBBR processing systems adds in MBBR reactors
Enter halophile microbial inoculum, floating stuffing is made in fluidized state by aeration, by micro- in spoil disposal and sludge reflux control system
Biomass and growth of microorganism environment, so as to promote biofilm type microorganism species to occupy advantage and be attached to filler surface, and most
Go out during biomembrane, and floating stuffing biofilm salt concentration range and high-salt wastewater in MBBR reactors in filler superficial growth eventually
Salinity range is consistent, and methods described is realized according to the following steps：
（1）According to actual high-salt wastewater water quality characteristic, by the halophile microbial inoculum after preliminary culture, domestication add to
In MBBR reactors, inoculum density 2g/L, SV3010%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element needed for biological, aeration operation 24h, 15 DEG C of dissolved oxygen 2mg/L in control system, pH 6.0, water temperature；
（3）After aeration terminates, start to autogamy or actual high-salt wastewater is pumped into MBBR reactors, volumetric loading control of intaking
System is in 0.2kgCOD/ (m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm feelings
Condition, carries out the control of spoil disposal and sludge reflux, promotes biofilm type halophile to occupy advantage and fast filming；
（4）Treat floating stuffing color change and there is film to adhere to, while when COD clearances are up to more than 40%, in 5% ratio
Influent load is stepped up, and increases aeration rate so that biomembrane is thickened and Bacterial community, diversity and treatment efficiency are increased
By force, microscopy can be observed protozoan and metazoa, biofilm success.
Embodiment 2, the colonization method of floating stuffing, institute in a kind of high-salt wastewater MBBR processing systems described in embodiment 1
Method is stated to realize according to the following steps：
（1）According to actual high-salt wastewater water quality characteristic, by the halophile microbial inoculum after preliminary culture, domestication add to
In MBBR reactors, inoculum density 6g/L, SV3040%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element needed for biological, aeration operation 48h, 45 DEG C of dissolved oxygen 6mg/L in control system, pH 9.0, water temperature；
（3）After aeration terminates, start to autogamy or actual high-salt wastewater is pumped into MBBR reactors, volumetric loading control of intaking
System is in 1.0kgCOD/ (m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm feelings
Condition, carries out the control of spoil disposal and sludge reflux, promotes biofilm type halophile to occupy advantage and fast filming；
（4）Treat floating stuffing color change and there is film to adhere to, while when COD clearances are up to more than 40%, by 20% ratio
Example steps up influent load, and increases aeration rate so that biomembrane is thickened and Bacterial community, diversity and treatment efficiency are able to
Enhancing, microscopy can be observed protozoan and metazoa, biofilm success.
Embodiment 3, the colonization method of floating stuffing, institute in a kind of high-salt wastewater MBBR processing systems described in embodiment 1
Method is stated to realize according to the following steps：
（1）According to actual high-salt wastewater water quality characteristic, by the halophile microbial inoculum after preliminary culture, domestication add to
In MBBR reactors, inoculum density 4g/L, SV3025%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element needed for biological, aeration operation 36h, 25 DEG C of dissolved oxygen 4mg/L in control system, pH7.5, water temperature；
（3）After aeration terminates, start to autogamy or actual high-salt wastewater is pumped into MBBR reactors, volumetric loading control of intaking
System is in 0.6kgCOD/ (m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm feelings
Condition, carries out the control of spoil disposal and sludge reflux, promotes biofilm type halophile to occupy advantage and fast filming；
（4）Treat floating stuffing color change and there is film to adhere to, while when COD clearances are up to more than 40%, by 10% ratio
Example steps up influent load, and increases aeration rate so that biomembrane is thickened and Bacterial community, diversity and treatment efficiency are able to
Enhancing, microscopy can be observed protozoan and metazoa, biofilm success.
Embodiment 4, the biofilm side of floating stuffing in a kind of high-salt wastewater MBBR processing systems described in embodiment 1 or 2 or 3
In method：The halophile microbial inoculum uses number of patent application method described in 201310540099.X to prepare.
Embodiment 5, in a kind of high-salt wastewater MBBR processing systems described in embodiment 1 in the colonization method of floating stuffing：
The step（1）Middle inoculum density is 3g/L, SV3025%%；BBR reactors water inlet salinity is 1%；Mixing in MBBR reactors
Salt solution concentration is 1%；The floating stuffing be selected from polyethylene, polypropylene, polyurethane or addition enzymatic agent, hydrophilic radical and other
The hollow circular cylinder or porous spinning ball of modified material；The rate that adds of the floating stuffing is 20%；Biofilm culture is using synchronous
Training method.Remaining is same as Example 1.
Embodiment 6, in a kind of high-salt wastewater MBBR processing systems described in embodiment 2 in the colonization method of floating stuffing：
The step（1）Middle inoculum density is 5g/L, SV3035%；BBR reactors water inlet salinity is 10%；Mixing in MBBR reactors
Salt solution concentration is 10%；The floating stuffing be selected from polyethylene, polypropylene, polyurethane or addition enzymatic agent, hydrophilic radical and other
The hollow circular cylinder or porous spinning ball of modified material；The rate that adds of the floating stuffing is 60%；Biofilm culture is using asynchronous
Training method.Remaining is same as Example 2.
Embodiment 7, in a kind of high-salt wastewater MBBR processing systems described in embodiment 3 in the colonization method of floating stuffing：
The step（1）Middle inoculum density is 4g/L, SV3030%；BBR reactors water inlet salinity is 5%；Mixing in MBBR reactors
Salt solution concentration is 5；The floating stuffing be selected from polyethylene, polypropylene, polyurethane or addition enzymatic agent, hydrophilic radical and other change
The hollow circular cylinder or porous spinning ball of property material；The rate that adds of the floating stuffing is 35% ~ 45%；Biofilm culture is using same
Step training method.Remaining is same as Example 3.
Embodiment 8, the colonization method experiment one of floating stuffing in a kind of high-salt wastewater MBBR processing systems：
The present embodiment carries out biofilm using synchronous training method, and chemical industry high-salt wastewater contains 5% ~ 7%NaCl.Specifically adopt
Step carries out MBBR biofilms using the following method：
（1）Halophile microbial inoculum after preliminary culture, domestication is added to MBBR reactors, inoculum density 3g/L,
SV3025%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element, C needed for biological:N:P:The control of K ratios exists（100~150）:（5~10）:1:1, trace element is added
Amount is in 0.1 ~ 2.0mg/L, aeration operation 48h, 15 DEG C of dissolved oxygen 2mg/L in control system, pH 6.0, water temperature；
（3）After aeration terminates, start to pumping into the waste water in MBBR reactors, the control of water inlet volumetric loading 0.2 ~
0.5kgCOD/(m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm situation,
The control of spoil disposal and sludge reflux is carried out, promotes biofilm type halophile to occupy advantage and fast filming, naked eyes are visible after 4 days
Filler color significant changes, sludge largely adheres to, the whole discharges of suspended sludge in system after 10 days, and just one-step film forming is simultaneously complete on filler
All standing, 120 μm of thickness, color is yellowish-brown, COD clearances 52%；
（4）Influent load is stepped up in 5% ~ 15% ratio, lifting ratio combination biofilm and COD removals situation are carried out
Adjustment, while increasing aeration rate, is run 30 days, and biomembrane is progressively thickened, color burn, and water outlet gradually becomes clear, and thickness is up to 280
μm, microscopy can be observed protozoan and metazoa, now influent COD 2500mg/L, water outlet COD 180mg/L, clearance
92.8%, biomembrane is closely knit, Stability Analysis of Structures and high treating effect.
Embodiment 9, the colonization method experiment two of floating stuffing in a kind of high-salt wastewater MBBR processing systems：
Present embodiment carries out biofilm using asynchronous training method, carries out preliminary biofilm using autogamy high-salt wastewater first,
Tamed using actual high-salt wastewater again；Autogamy high-salt wastewater is 8% Na2SO4System, while needed for adding halophile
Matrix nutrition and trace element, actual high-salt wastewater be certain chemical production wastewater, containing 5% ~ 15% Na2SO4.It is specific use with
Lower method and step is carried out：
（1）Halophile microbial inoculum after preliminary culture, domestication is added to MBBR reactors, inoculum density 4g/L,
SV3030%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element, C needed for biological:N:P:The control of K ratios exists（100~150）:（5~10）:1:1, trace element is added
Amount is in 0.1 ~ 2.0mg/L, aeration operation 24h, 25 DEG C of dissolved oxygen 4mg/L in control system, pH 7.5, water temperature；
（3）After aeration terminates, start to autogamy high-salt wastewater is pumped into MBBR reactors, water inlet volumetric loading control exists
0.5~1.0kgCOD/(m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm feelings
Condition, carries out the control of spoil disposal and sludge reflux, promotes biofilm type halophile to occupy advantage and fast filming, naked eyes after 3 days
It can be seen that filler color significant changes, sludge largely adheres to, and suspended sludge is all discharged in system after 7 days, first one-step film forming on filler
And be completely covered, 140 μm of thickness, color is yellowish-brown, COD clearances 65%；
（4）Start, to actual high-salt wastewater is pumped into MBBR reactors, raw water amount progressively to be increased in 5% ~ 15% ratio, carry
Rise ratio combination biofilm and COD removals situation be adjusted, while increasing aeration rate, run 40 days, biomembrane is progressively thickened,
Color burn, water outlet gradually becomes clear, and up to 250 μm, microscopy can be observed protozoan and metazoa to thickness, now intake
COD 3000mg/L, water outlet COD 250mg/L, clearance 91.7%, biomembrane is closely knit, Stability Analysis of Structures and high treating effect.
Embodiment 10, the colonization method experiment three of floating stuffing in a kind of high-salt wastewater MBBR processing systems：
Present embodiment carries out biofilm using synchronous training method, and actual high-salt wastewater is certain wastewater from chemical industry, containing 10%
NaCl.It is specific to be carried out using following methods step：
（1）Halophile microbial inoculum after preliminary culture, domestication is added to MBBR reactors, inoculum density 5g/L,
SV3035%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element, C needed for biological:N:P:The control of K ratios exists（100~150）:（5~10）:1:1, trace element is added
Amount is in 0.1 ~ 2.0mg/L, aeration operation 48h, 30 DEG C of dissolved oxygen 6mg/L in control system, pH 9.0, water temperature；
（3）After aeration terminates, start to pumping into the high-salt wastewater in MBBR reactors, the control of water inlet volumetric loading 0.2 ~
0.5kgCOD/(m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm situation,
The control of spoil disposal and sludge reflux is carried out, promotes biofilm type halophile to occupy advantage and fast filming, naked eyes are visible after 6 days
Filler color significant changes, sludge largely adheres to, the whole discharges of suspended sludge in system after 12 days, and just one-step film forming is simultaneously complete on filler
All standing, 135 μm of thickness, color is bronzing, COD clearances 48%；
（4）Influent load is stepped up in 5% ~ 15% ratio, lifting ratio combination biofilm and COD removals situation are carried out
Adjustment, while increasing aeration rate, is run 35 days, and biomembrane is progressively thickened, color burn, and water outlet gradually becomes clear, and thickness is up to 243
μm, microscopy can be observed protozoan and metazoa, now influent COD 2800mg/L, water outlet COD 350mg/L, clearance
87.5%, biomembrane is closely knit, Stability Analysis of Structures and high treating effect.
Embodiment 11, the colonization method experiment four of floating stuffing in a kind of high-salt wastewater MBBR processing systems：
Present embodiment carries out biofilm using synchronous training method, and actual high-salt wastewater is certain wastewater from chemical industry, containing 4% ~ 6%
CaCl2.It is specific to be carried out using following methods step：
（1）Halophile microbial inoculum after preliminary culture, domestication is added to MBBR reactors, inoculum density 5g/L,
SV3035%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element, C needed for biological:N:P:The control of K ratios exists（100~150）:（5~10）:1:1, trace element is added
Amount is in 0.1 ~ 2.0mg/L, aeration operation 36h, 45 DEG C of dissolved oxygen 5mg/L in control system, pH 6.5, water temperature；
（3）After aeration terminates, start to pumping into the high-salt wastewater in MBBR reactors, the control of water inlet volumetric loading 0.5 ~
1.0kgCOD/(m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm situation,
The control of spoil disposal and sludge reflux is carried out, promotes biofilm type halophile to occupy advantage and fast filming, naked eyes are visible after 4 days
Filler color significant changes, sludge largely adheres to, the whole discharges of suspended sludge in system after 7 days, and just one-step film forming is simultaneously complete on filler
All standing, 120 μm of thickness, color is yellowish-brown, COD clearances 58%；
（4）Influent load is stepped up in 5% ~ 15% ratio, lifting ratio combination biofilm and COD removals situation are carried out
Adjustment, while increasing aeration rate, is run 40 days, and biomembrane is progressively thickened, color burn, and water outlet gradually becomes clear, and thickness is up to 268
μm, microscopy can be observed protozoan and metazoa, now influent COD 1500mg/L, water outlet COD 60mg/L, clearance
96%, biomembrane is closely knit, Stability Analysis of Structures and high treating effect.
Embodiment 12, the colonization method experiment five of floating stuffing in a kind of high-salt wastewater MBBR processing systems：
Present embodiment carries out biofilm using synchronous training method, and actual high-salt wastewater is certain wastewater from chemical industry, and salt content 1% ~
3%, inorganic salts are NaCl, CaCl2Mixed system.It is specific to be carried out using following methods step：
（1）Halophile microbial inoculum after preliminary culture, domestication is added to MBBR reactors, inoculum density 5g/L,
SV3030%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds suitable salt micro-
Matrix nutrition and trace element, C needed for biological:N:P:The control of K ratios exists（100~150）:（5~10）:1:1, trace element is added
Amount is in 0.1 ~ 2.0mg/L, aeration operation 36h, 25 DEG C of dissolved oxygen 5mg/L in control system, pH 7.0, water temperature；
（3）After aeration terminates, start to pumping into the high-salt wastewater in MBBR reactors, the control of water inlet volumetric loading 0.5 ~
0.8kgCOD/(m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm situation,
The control of spoil disposal and sludge reflux is carried out, promotes biofilm type halophile to occupy advantage and fast filming, naked eyes are visible after 3 days
Filler color significant changes, sludge largely adheres to, the whole discharges of suspended sludge in system after 7 days, and just one-step film forming is simultaneously complete on filler
All standing, 148 μm of thickness, color is faint yellow, COD clearances 52%；
（4）Influent load is stepped up in 5% ~ 15% ratio, lifting ratio combination biofilm and COD removals situation are carried out
Adjustment, while increasing aeration rate, is run 28 days, and biomembrane is progressively thickened, color burn, and water outlet gradually becomes clear, and thickness is up to 275
μm, microscopy can be observed protozoan and metazoa, now influent COD 1300mg/L, water outlet COD 200mg/L, clearance
84.6%, biomembrane is closely knit, Stability Analysis of Structures and high treating effect.
The colonization method of floating stuffing in a kind of high-salt wastewater MBBR processing systems described in any one of embodiment 1 ~ 5,
Floating stuffing in system is selected from polyethylene, polypropylene, polyurethane or addition enzymatic agent, hydrophilic radical and other modified materials
Hollow circular cylinder or porous spinning ball.
The colonization method of floating stuffing in a kind of high-salt wastewater MBBR processing systems described in any one of embodiment 1 ~ 6,
The rate that adds of the floating stuffing chooses 35%, 40% or 45%.
Claims (10)
1. in a kind of high-salt wastewater MBBR processing systems floating stuffing colonization method, it is characterised in that：In MBBR reactors
Halophile microbial inoculum is added, floating stuffing is made in fluidized state by aeration, by spoil disposal and sludge reflux control system
Microbial biomass and growth of microorganism environment, so as to promote biofilm type microorganism species to occupy advantage and be attached to filler surface, and
It is final to go out during biomembrane, and floating stuffing biofilm that salt concentration range gives up with high salt in MBBR reactors in filler superficial growth
Salinity water scope is consistent, and methods described is realized according to the following steps：
（1）According to actual high-salt wastewater water quality characteristic, the halophile microbial inoculum after preliminary culture, domestication is added anti-to MBBR
Answer in device, inoculum density 2 ~ 6g/L, SV3010%~40%；
（2）Open aeration, it is ensured that floating stuffing is just fluidized and is fully contacted with halophile microbial inoculum, adds halophile
Required matrix nutrition and trace element, aeration operation 24 ~ 48h, 2 ~ 6mg/L of dissolved oxygen in control system, pH 6.0 ~ 9.0, water temperature
15~45℃；
（3）After aeration terminates, start to autogamy or actual high-salt wastewater is pumped into MBBR reactors, water inlet volumetric loading control exists
0.2~1.0kgCOD/(m3.d), water outlet overflow is to sedimentation basin, and according to suspended sludge concentration in system and floating stuffing biofilm feelings
Condition, carries out the control of spoil disposal and sludge reflux, promotes biofilm type halophile to occupy advantage and fast filming；
（4）Treat floating stuffing color change and there is film to adhere to, while when COD clearances are up to more than 40%, in 5% ~ 20% ratio
Influent load is stepped up, and increases aeration rate so that biomembrane is thickened and Bacterial community, diversity and treatment efficiency are increased
By force, microscopy can be observed protozoan and metazoa, biofilm success.
2. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：The halophile microbial inoculum uses number of patent application method described in 201310540099.X to prepare.
3. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：The step（1）Middle inoculum density is 3 ~ 5g/L, SV30 25%~35%。
4. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：MBBR reactors water inlet salinity is 1% ~ 10%.
5. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：Mixed liquor salinity is 1% ~ 10% in MBBR reactors.
6. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：The floating stuffing is selected from polyethylene, polypropylene, polyurethane or addition enzymatic agent, hydrophilic radical and other modified materials
Hollow circular cylinder or porous spinning ball.
7. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：The rate that adds of the floating stuffing is 20% ~ 60%.
8. in a kind of high-salt wastewater MBBR processing systems according to claim 1 or 7 floating stuffing colonization method, it is special
Levy and be, the rate that adds of the floating stuffing is 35% ~ 45%.
9. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：Biofilm culture is using synchronous training method.
10. in a kind of high-salt wastewater MBBR processing systems according to claim 1 floating stuffing colonization method, its feature
It is：Biofilm culture uses asynchronous training method.
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| CN108069509A (en) * | 2016-11-15 | 2018-05-25 | 天津大学 | A kind of electric energy anaerobic reactor device applied in natural water and its application method |
| CN106430560B (en) * | 2016-11-29 | 2019-10-11 | 南京大学 | A kind of wastewater biological film rapid biofilm device and method |
| CN106745687B (en) * | 2016-12-16 | 2020-06-16 | 北京桑德环境工程有限公司 | Operation control method of biological rotating disc process for treating low-load village and town sewage |
| CN106495314B (en) * | 2016-12-26 | 2019-11-22 | 中蓝连海设计研究院有限公司 | Circulation colonization method and denitrification reactor in aerobic salt tolerant denitrifying bacterium |
| CN106542655B (en) * | 2017-01-23 | 2020-05-01 | 中蓝连海设计研究院有限公司 | Rapid biofilm formation method for efficient denitrification microbial agent |
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| CN110304715A (en) * | 2019-06-21 | 2019-10-08 | 安吉国千环境科技有限公司 | A kind of MBBR biofilm method suitable for sanitary sewage |
| CN114162976A (en) * | 2021-12-10 | 2022-03-11 | 上海问鼎环保科技有限公司 | Microbial filler attached with halotolerant bacteria and preparation method and application thereof |
| CN114230000A (en) * | 2021-12-13 | 2022-03-25 | 湘潭大学 | Method for modifying MBBR filler by hydrotalcite-like compound for black and odorous water body |
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