CN109133379A - Promote the method for sewage treatment biomembrane activating and regenerating - Google Patents
Promote the method for sewage treatment biomembrane activating and regenerating Download PDFInfo
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- CN109133379A CN109133379A CN201811160240.2A CN201811160240A CN109133379A CN 109133379 A CN109133379 A CN 109133379A CN 201811160240 A CN201811160240 A CN 201811160240A CN 109133379 A CN109133379 A CN 109133379A
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- biomembrane
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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- Microbiology (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention discloses a kind of method for promoting sewage treatment biomembrane activating and regenerating.The method includes: by the uncoupling of aging biomembrane；By the elution of the aging biomembrane after uncoupling.Powder performance used in the present invention is stablized, and will not inactivate, elution process reduces energy consumption.The present invention can be realized the function that good biomembrane is weeded out the old and bring forth the new, and improves the efficiency of biofilm processing sewage, is with a wide range of applications.
Description
Technical field
The invention patent relates to a kind of sewage treatment biomembranes to weed out the old and bring forth the new, the method for activating and regenerating.
Background technique
Water-treatment biological embrane method is that filler is arranged in sewage treatment structure, and microorganism grows into filler surface aggregation
Biomembrane, when biomembrane reaches certain thickness, to biomembrane inside the mass transfer that spreads when being restricted, even detest in anoxic
The biomembrane of oxygen condition is fallen off.Biofilm has stronger adaptability to water quality, water variation, and excess sludge production is few,
The advantages such as anti impulsion load ability is strong, and sludge bulking will not occur, and operation easy to maintain is energy saving, and power cost is low.It is quick to accelerate
Sensillary area domain, built-up areas water quality reach ground Table IV class standard, and biomembrane process is due to the above advantage and in town sewage plant
It mentions and being widely applied in mark transformation.
But in the actual motion of biomembrane process, prolonged continuous processing can form thick up to 50cm in filler surface
Foundry loam, or even in the form of crystallite firmly can be attached to filler surface and not easily to fall off, prevent biomembrane is old from pushing away naturally
New out, reactor for treatment efficiency reduces.
Chinese patent CN106315847A announces a kind of method that fixed carrier biofilm activates update and sludge suspension, main
If using periodical start and stop blower and guaranteeing that enough gas disturbs intensity and reaches hydraulic disturbance and rinsing to update the biomembrane of aging,
Although easy to operate, greater energy consumption is had.Chinese patent CN105600921A is realized also with strong aeration to membrane bioreaction
It answers the biomembrane of aging on filler in device to be updated activation, equally can also generate greater energy consumption in the application.Chinese patent
CN105753142A discloses a kind of raw using aging in in-situ activation agent and the elution biological aerated filter that combines of backwash
The method of object film.But in-situ activation agent is mainly biological enzyme and metal ion, the characteristics of having stronger specificity and be easy inactivation.
The above-mentioned dynamic consumption of biomembrane activation method is big, at high cost, complicated operation, and activator is easy inactivation.
Summary of the invention:
For above-mentioned deficiency in the prior art, the invention patent provides a kind of activation of promotion sewage treatment biomembrane again
Raw method.
In order to achieve the above objectives, the present invention promotes the method for sewage treatment biomembrane activating and regenerating, including following processing step
It is rapid:
By the uncoupling of aging biomembrane；
By the elution of the aging biomembrane after uncoupling；
The discharge of aging biomembrane and the regeneration of biomembrane.
Preferably, the step of uncoupling of the aging biomembrane are as follows: when the biomembrane aging on filler, have a large amount of viscous
When mud adheres to:
Stop the operation of reactor, the uncoupler into reactor, so that uncoupler is in the initial dense of reactor
Degree reaches 4~20mg/L；
Open turbulent water equipment make the biomembrane of aging on filler sufficiently with uncoupler haptoreaction.
Preferably, by the elution of the aging biomembrane after uncoupling: adding surfactant or chitosan into reactor
Solution, so that it is 0.1~2% in the concentration of reactor；Aerating system is opened, the shearing force using air-flow and water flow makes aging
Biomembrane fall off from filler surface.Flocculant is added into reactor, the flocculation of aeration mixing, accelerated ageing biomembrane is heavy
It forms sediment；
Preferably, further include aging biomembrane discharge and biomembrane regeneration step:
Reactor quiescent setting opens reactor blow valve, drains the aging biomembrane to precipitate, empties reactor；
Blow valve is closed, inlet valve is opened, after running 2~8 periods with batch process, completes the regeneration of biomembrane.
Preferably, the uncoupler is 3,3,4,5-tetrachlorosalicylanilides (TCS), amino-phenol, 2,4-two
Nitrophenols (DNP), 4-Cl-2-nitrophenols (CNP), 2,4-dichloro nitrophenols (DCP), 2,4,5-trichlorophenol, 2,4,6,-Ts (TCP),
Ortho position-chlorinated phenol (oCP), p-nitrophenol (pNP), one or more of meta position-nitrophenol (mNP).More preferably
Ground, the uncoupler are 3,3,4,5-tetrachlorosalicylanilides (TCS).
Preferably, the surfactant is the anionic surfactants such as neopelex.
Preferably, the flocculant is cationic polyacrylamide (0.05~1.0%) and inorganic flocculating agent mixed proportion
It is made of 1.0~10.0mL:1g, inorganic flocculating agent includes diatomite, bentonite, sepiolite clay, attapulgite, zeolite, height
One or more of ridge soil and flyash；It is highly preferred that the inorganic flocculating agent is diatomite.
Powder performance used in the present invention is stablized, and will not inactivate, elution process reduces energy consumption.The present invention can be realized
The function that good biomembrane is weeded out the old and bring forth the new improves the efficiency of biofilm processing sewage, is with a wide range of applications.
Specific embodiment:
Embodiment 1:
(1) in the sbr reactor device for being equipped with suspension type filler, when biomembrane aging occurs and a large amount of " foundry loams " occurs, directly
Microscopic method shows that biofilm thickness in 0.3cm or more, stops water inlet, stops supplying oxygen to reactor；
(2) 2,4-dinitrophenol dinitrophenolates (DNP) are dissolved in ethyl alcohol or acetone soln, are made into the solution of 20mg/mL；
(3) 2 in (2), 4-dinitrophenol dinitrophenolates (DNP) solution, so that 2,4-dinitrophenol dinitrophenolates (DNP) are added into reactor
It is 15mg/L in the initial concentration of reactor；
(4) 1~30min of system intermittent aeration, aeration intensity are 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
(5) stop aeration, dodecyl sodium sulfate is added into reactor, so that it is 0.5% in the concentration of reactor；
(6) system continuous aeration is no less than 10min, and aeration intensity is 5~10m3Air/(m2Bottom of pond plane accumulates * h)；
(7) stop aeration, flocculant is added into reactor, by diatomite: handling water=0.05 (g): 1 in reactor
(L) add mixed flocculation agent into reactor, the cationic polyacrylamide and diatomite that mixed flocculation agent is 0.05% press than
Example is that 2.0mL:1g is mixed；
(8) system intermittent aeration is no more than 5min, and aeration intensity is 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
(9) stop aeration, quiescent setting 1 hour or more, the biomembrane of aging fell off substantially on filler, and microscopic method is shown
The aging biomembrane that biofilm thickness is less than 0.2cm discharge supernatant and precipitates；
(10) reactor is normally intake, and after system runs 2~8 periods by sbr reactor device intermittent mode, is discharged COD's
Treatment effect promotes 10% or more, and system completes weeding out the old and bring forth the new for biomembrane.
Embodiment 2:
(1) in biomembrane/activated sludge group technology (IFAS) reactor for being equipped with fixed filler, biomembrane occurs
When aging and appearance a large amount of " foundry loams ", direct microscopic method shows that biofilm thickness in 0.2cm or more, stops water inlet, stopping
It is supplied oxygen to reactor；
(2) reactor quiescent setting 2 hours or more, the suspended sludge to precipitate in emptying system；
(3) 3,3 ', 4 ', 5-tetrachlorosalicylanilides (TCS) are dissolved in ethyl alcohol or acetone soln, are made into 10mg/mL's
Solution；
(4) 3,3 ', 4 ', 5-tetrachlorosalicylanilide (TCS) solution prepared in (3) are added into reactor, simultaneously will
Water inlet in reactor, so that fixed filler is under liquid level, 3,3 ', 4 ', 5-tetrachlorosalicylanilides (TCS) are in the reactor
Initial concentration is 5mg/L；
(5) 1~30min of system intermittent aeration, aeration intensity are 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
(6) stop aeration, chitosan is dissolved in acetic acid or hydrochloric acid solution, the chitosan for being made into 0.1~10mg/mL is water-soluble
Liquid adds chitosan aqueous solution into reactor, so that it is 2% in the concentration of reactor；
(7) system continuous aeration is no less than 10min, and aeration intensity is 5~10m3Air/(m2Bottom of pond plane accumulates * h)；
(8) stop aeration, flocculant is added into reactor, by diatomite: handling water=0.05 (g): 1 in reactor
(L) mixed flocculation agent is added into reactor, the cationic polyacrylamide and diatomite that mixed flocculation agent is 0.1% are in proportion
For 2.0mL:1g mixing；
(9) system intermittent aeration is no more than 5min, and aeration intensity is 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
(10) stop aeration, quiescent setting 1 hour or more, the biomembrane of aging fell off substantially on filler, and microscope inspection shows biomembrane
Thickness mean value is less than 0.1cm, discharge supernatant and the aging biomembrane to precipitate.
(11) reactor is normally intake into mud, after system runs 2~8 periods by intermittent mode, is discharged the processing effect of COD
Fruit promotes 12% or more, and system completes weeding out the old and bring forth the new for biomembrane.
Embodiment 3:
(1) it is risen in object filter tank under the submerged filled with Biohaydite filter material to the aeration of stream, it is stifled that biology occurs in filtrate
Plug, the biomembrane of aging is adhered to quartz sand surface, when the head loss in filter tank cannot be still obviously reduced later in air-water backwashing,
Stop water inlet, stops being aerated oxygen supply to reactor；
(2) 2,2, 4-dinitrophenol is dissolved in ethyl alcohol or acetone soln, is made into the solution of 20mg/mL；
(3) 2,2, 4-dinitrophenol solution is added into reactor, by water distribution system equably cloth in the sand filtration bed of material, 2,
2, 4-dinitrophenol is 12mg/L in the concentration of reactor；
(4) static 10min or more, dodecyl sodium sulfate is added into reactor, so that it is in the concentration of reactor
0.2%；
(5) air-water backwashing system is opened, the air purge in short-term no more than 5min is carried out, backwash air intensity is not less than
10L/(m2* s)；
(6) air-water backwashing no more than 15min is carried out, backwash air intensity is not less than 10L/ (m2* s), backwash
Water intensity is not less than 4L/ (m2* s)；
(7) single water backwash no more than 10min is carried out to wash, backwashing water intensity 15m3/(m2Bottom of pond plane accumulates * h)；
(8) stop backwash, the biomembrane of aging falls off substantially on filtrate, and filter tank head loss reduces 20%.
(9) after reactor is normally intake operation 3~8 days, biological aerated filter reaches biology to the treatment effect of influent COD
Processing capacity before blocking, system complete weeding out the old and bring forth the new for biomembrane.
A kind of method that sewage treatment biomembrane is weeded out the old and bring forth the new provided by the present invention and its preparation have been carried out in detail above
It is thin to introduce.Principle and implementation of the present invention are described for specific embodiment used herein, above embodiments
Illustrate to be merely used to help understand method and its central idea of the invention.It should be pointed out that for the ordinary skill people of this field
Member for, without departing from the principle of the present invention, can with several improvements and modifications are made to the present invention, these improve and
Modification also falls into the protection of the claims in the present invention.
Claims (10)
1. a kind of method for promoting sewage treatment biomembrane activating and regenerating, which is characterized in that the method includes at least following
Step:
By the uncoupling of aging biomembrane；
By the elution of the aging biomembrane after uncoupling.
2. promoting the method for sewage treatment biomembrane activating and regenerating as described in claim 1, which is characterized in that the aging
The step of uncoupling of biomembrane are as follows: when the biomembrane aging on filler, when having the attachment of a large amount of foundry loams:
Stop the operation of reactor, the uncoupler into reactor, so that uncoupler is reached in the initial concentration of reactor
To 4~20mg/L；
Open turbulent water equipment make the biomembrane of aging on filler sufficiently with uncoupler haptoreaction.
3. promoting the method for sewage treatment biomembrane activating and regenerating as described in claim 1, which is characterized in that after uncoupling
Aging biomembrane elution: surfactant or chitosan solution are added into reactor, so that its concentration in reactor
It is 0.1~2%；It is aerated, so that the biomembrane of aging is fallen off from filler surface using the shearing force of air-flow and water flow.
4. promoting the method for sewage treatment biomembrane activating and regenerating as described in claim 1, which is characterized in that further including will be old
Change the discharge of biomembrane and the regeneration step of biomembrane:
Reactor quiescent setting opens reactor blow valve, drains the aging biomembrane to precipitate, empties reactor；It closes
Blow valve opens inlet valve, after running 2~8 periods with batch process, completes the regeneration of biomembrane.
5. promoting the method for sewage treatment biomembrane activating and regenerating as claimed in claim 2, which is characterized in that the uncoupling
Agent is 3,3,4,5-tetrachlorosalicylanilides (TCS), amino-phenol, 2,4-dinitrophenol dinitrophenolates (DNP), 4-Cl-2-nitro
Phenol (CNP), 2,4-dichloro nitrophenols (DCP), 2,4,5-trichlorophenol, 2,4,6,-Ts (TCP), ortho position-chlorinated phenol (oCP), to nitro
Phenol (pNP), one or more of meta position-nitrophenol (mNP).
6. promoting the method for sewage treatment biomembrane activating and regenerating as claimed in claim 3, which is characterized in that the surface
Activating agent is neopelex anionic surfactant.
7. promoting the method for sewage treatment biomembrane activating and regenerating as claimed in claim 3, which is characterized in that the aeration
Step includes:
71) 1~30min of system intermittent aeration, aeration intensity are 3~8m3 air/(m2 bottom of pond plane product * h)；
72) stop aeration, dodecyl sodium sulfate is added into reactor, so that it is 0.5% in the concentration of reactor；
73) 1~30min of system intermittent aeration, aeration intensity are 3~8m3 air/(m2 bottom of pond plane product * h)；
74) system continuous aeration is no less than 10min, and aeration intensity is 5~10m3 air/(m2 bottom of pond plane product * h)；
75) stop being aerated, quiescent setting 1 hour or more.
8. promoting the method for sewage treatment biomembrane activating and regenerating as claimed in claim 3, which is characterized in that the aeration
Step includes:
81) 1~30min of system intermittent aeration, aeration intensity are 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
82) stop aeration, dodecyl sodium sulfate is added into reactor, so that it is 0.5% in the concentration of reactor；
83) system continuous aeration is no less than 10min, and aeration intensity is 5~10m3 air/(m2 bottom of pond plane product * h)；
84) stop aeration, flocculant is added into reactor, by diatomite: handling water=0.05 (g): 1 (L) in reactor
Mixed flocculation agent is added into reactor, the cationic polyacrylamide that mixed flocculation agent is 0.05% is in proportion with diatomite
2.0mL:1g mixing；
85) system intermittent aeration is no more than 5min, and aeration intensity is 3~8m3 air/(m2 bottom of pond plane product * h)；
86) stop being aerated, quiescent setting 1 hour or more.
9. promoting the method for sewage treatment biomembrane activating and regenerating as claimed in claim 8, which is characterized in that the flocculant
It is made of cationic polyacrylamide (0.05~1.0%) with inorganic flocculating agent mixed proportion of 1.0~10.0mL:1g, it is inorganic
Flocculant includes one of diatomite, bentonite, sepiolite clay, attapulgite, zeolite, kaolin and flyash or several
Kind.
10. promoting the method for sewage treatment biomembrane activating and regenerating as claimed in claim 3, which is characterized in that the exposure
Jia bombardier includes: suddenly
101) 1~30min of system intermittent aeration, aeration intensity are 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
102) stop aeration, chitosan be dissolved in acetic acid or hydrochloric acid solution, the chitosan aqueous solution of 0.1~10mg/mL is made into,
Chitosan aqueous solution is added into reactor, so that it is 2% in the concentration of reactor；
103) system continuous aeration is no less than 10min, and aeration intensity is 5~10m3Air/(m2Bottom of pond plane accumulates * h)；
104) stop aeration, flocculant is added into reactor, by diatomite: handling water=0.05 (g): 1 (L) in reactor
Mixed flocculation agent is added into reactor, the cationic polyacrylamide that mixed flocculation agent is 0.1% is in proportion with diatomite
2.0mL:1g mixing；
105) system intermittent aeration is no more than 5min, and aeration intensity is 3~8m3Air/(m2Bottom of pond plane accumulates * h)；
106) stop being aerated, quiescent setting 1 hour or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811160240.2A CN109133379B (en) | 2018-09-30 | 2018-09-30 | Method for promoting activation and regeneration of sewage treatment biological membrane |
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| CN201811160240.2A CN109133379B (en) | 2018-09-30 | 2018-09-30 | Method for promoting activation and regeneration of sewage treatment biological membrane |
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| CN109133379B CN109133379B (en) | 2021-08-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050019A (en) * | 2007-04-30 | 2007-10-10 | 南开大学 | Sludge decrement type biomembrane piled ball packing, preparation method and application |
| US8835152B2 (en) * | 2003-03-11 | 2014-09-16 | Advanced Biocatalytics Corporation | Altering metabolism in biological processes |
| CN105152310A (en) * | 2015-09-22 | 2015-12-16 | 南京大学 | In-situ excitation method of biological aerated filter aged biological film |
-
2018
- 2018-09-30 CN CN201811160240.2A patent/CN109133379B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8835152B2 (en) * | 2003-03-11 | 2014-09-16 | Advanced Biocatalytics Corporation | Altering metabolism in biological processes |
| CN101050019A (en) * | 2007-04-30 | 2007-10-10 | 南开大学 | Sludge decrement type biomembrane piled ball packing, preparation method and application |
| CN105152310A (en) * | 2015-09-22 | 2015-12-16 | 南京大学 | In-situ excitation method of biological aerated filter aged biological film |
Non-Patent Citations (1)
| Title |
|---|
| HUIJUAN XU等: "Control and Cleaning of Membrane Biofouling by Energy Uncoupling and Cellular Communication", 《ENVIRONMENTAL SCIENCE & TECHNOLOGY》 * |
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