CN105110470A - Heterotopic activation method for aging biological membrane of suspended filler - Google Patents
Heterotopic activation method for aging biological membrane of suspended filler Download PDFInfo
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- 230000004913 activation Effects 0.000 title claims abstract description 39
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- 239000000945 filler Substances 0.000 title claims abstract description 23
- 230000002431 foraging effect Effects 0.000 title description 2
- 230000032683 aging Effects 0.000 claims abstract description 63
- 239000007787 solid Substances 0.000 claims abstract description 28
- 238000005406 washing Methods 0.000 claims abstract description 5
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- 238000007667 floating Methods 0.000 claims description 58
- 230000008569 process Effects 0.000 claims description 24
- 238000012545 processing Methods 0.000 claims description 21
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- 239000000725 suspension Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000001354 calcination Methods 0.000 claims description 8
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 201000010099 disease Diseases 0.000 claims description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- FCBUKWWQSZQDDI-UHFFFAOYSA-N rhamnolipid Chemical compound CCCCCCCC(CC(O)=O)OC(=O)CC(CCCCCCC)OC1OC(C)C(O)C(O)C1OC1C(O)C(O)C(O)C(C)O1 FCBUKWWQSZQDDI-UHFFFAOYSA-N 0.000 claims description 5
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- 238000005374 membrane filtration Methods 0.000 claims description 4
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- -1 alkyl glycoside Chemical class 0.000 claims description 2
- 229930182470 glycoside Natural products 0.000 claims description 2
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- 239000000126 substance Substances 0.000 description 10
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Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a heterotopic activation method for an aging biological membrane of suspended filler, belongs to the technical field of sewage treatment by biological membranes. The method comprises the following steps: 1, taking out suspended filler containing an aging biological membrane from a sewage and wastewater treatment reactor; 2, determining the content of volatile solids in the biological membrane; 3, performing treatment on the aging biological membrane by selecting a treatment scheme I or a treatment scheme II according to the content values of volatile solids; 4, washing to remove loosened but undetached biological membrane on the surface of the filler; 5, feeding the suspended filler containing a small amount of biological membrane into the reactor to complete heterotopic activation. According to the heterotopic activation method for the aging biological membrane of the suspended filler, provided by the invention, on the basis of basic characteristics of the aging biological membrane and by adopting the targeted preferred scheme, the problem that the aging biological membrane of suspended filler is difficult to fall off naturally, renew and activate is solved, the operation is simple and convenient, the environmental friendliness is achieved and a broad application prospect is achieved.
Description
Technical field
The present invention relates to biomembrance process technical field of sewage, more particularly, relate to the aging biomembranous dystopy activation method of a kind of floating stuffing.
Background technology
The biomembrane purification sewage that biomembrance process sewage disposal technology is grown by filling surface, there is water quantity and quality strong adaptability, to organic removal effect well and the advantage such as the good nitrification and denitrification function of tool, power charge province, in stain disease process, obtain widespread use.Microbial film goes through the dynamic circulation processes such as apposition growth, maturation and aging film come off, nascent membrane growth at filling surface, carries out aerobic, hold concurrently oxygen and anaerobic metabolism to pollutent.Filler in biofilm reactor is divided into fixed and floated two types, wherein, adopt moving-bed/fluidized bed bio membrane reactor that floating filler builds, the advantage of set conventional fluidization bed and biological contact oxidation process two kinds of techniques, operational management is convenient, is the focus of recent domestic biomembrance process sewage disposal technology application.But, during moving-bed/fluidized bed bio membrane reactor process actual waste water, As time goes on, usually occur the aging microbial film of filling surface be difficult to nature come off upgrade phenomenon, biological membranous layer constantly thickeies formation " foundry loam ", ability and the waste water treatment efficiency of metabolism pollutent significantly reduce, and affect the normal operation for the treatment of system, must carry out activating and regenerating.
Because floating stuffing density is less, easily collecting, the activation of its surface biological film is suitable for the method adopting dystopy to activate, and introduces independent device activate by floating stuffing.As Chinese patent " a kind of aging biofilm packing reparative regeneration method that suspends " (application number 201410734593.4), disclose a kind of aging suspended biological film filler reparative regeneration method, this application case comprises: 1) taken out by the aging biological film suspend biologic packing material in biofilm reactor and dry; 2) Vibration on Start-up sieve, makes aging and loosening microbial film and comes off at this mud gathering generation and discharge subsequently; 3) soda acid chemical removal; Adopt and first mix pickling, rear alkali cleaning; 4) the further wash-out of zymin; Described zymin is proteolytic enzyme; 5) by step 4) filler after process dries, and filler put back to biofilm reactor; 6) microbial film regeneration; Pass into air or oxygen, add microelement nutritious liquid simultaneously and realize biomembranous final updated.This application case can remove the microbial film of floating stuffing surface ag(e)ing, fouling, and realize the renewal recycling of biologic packing material effectively and quickly, but it directly carries out a series of chemistry, biology and physical treatment to aging microbial film, required cost is higher.
Summary of the invention
1. invent the technical problem that will solve
The present invention is the dystopy activation optimizing carrier biofilm further, provides the aging biomembranous dystopy activation method of a kind of floating stuffing; The present invention is according to the difference of aging Biofilm characteristics, optionally adopt preferably combination scheme, and adopt biodegradable, environmentally friendly bio-surfactant, avoid secondary pollution, loss or the deactivation of contaminant degradation related microorganisms in microbial film can be alleviated to greatest extent, shorten the time upgrading activation, reduce activating cost simultaneously.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present invention, the steps include:
Step one, from stain disease treatment reactor take out comprise aging biomembranous floating stuffing;
Step 2, microbial film volatile solid content to be measured;
Step 3, select different processing schemes respectively according to step 2 gained volatile solid content numerical value, aging microbial film is processed;
Step 4, washing are removed filling surface and are loosened the microbial film but do not departed from;
Step 5, will containing a small amount of biomembranous floating stuffing return throw to reactor, complete dystopy activation.
Further, the stain disease treatment reactor in step one refers to the biomembrance process processing unit being applied to the stain disease process such as municipal wastewater, trade effluent, micro-polluted source water, and its type comprises aerobic and anoxic.
Further, in step one, floating stuffing is placed in receiving flask, and adds dehydrated alcohol, in receiving flask, the mass percent concentration of ethanol is 48%-52%.
Further, in step 2, microbial film volatile solid content mensuration process is as follows:
(1) receiving flask from step one takes out floating stuffing, uses distilled water rinse, and employing machinery scrapes or ultrasonic peeling off makes microbial film peel off from filling surface, obtained biological film suspend liquid, record suspension vol V;
(2) by the 0.45 μm membrane filtration of step (1) gained suspension through prior oven dry, constant weight; And be placed in biomembranous filter membrane in the baking oven of 105 DEG C, dry to constant weight;
(3) step (2) gained filter membrane is placed in the dry 0.5h of moisture eliminator, deducts former filter membrane weight after weighing, be the microbial film amount of dry matter M1 peeled off, amount of dry matter M1 is total solids level TS with the ratio of suspension vol V;
(4) in retort furnace step (2) gained filter membrane being placed in 550 DEG C, calcination is to constant weight, take out after filter membrane is placed in the dry 0.5h of moisture eliminator and weigh, weightlessness after calcination is volatile microbial film mass M 2, and volatile microbial film mass M 2 is volatile solid content VS with the ratio of suspension vol V; Volatile solid content VS is microbial film volatile solid content VS/TS with the ratio of total solids level TS.
Further, in step 3, when VS/TS >=0.7, adopt processing scheme I, be namely rhamnolipid or the alkyl glycoside solution steeping step one gained floating stuffing of 0.5%-2.5% with mass percent concentration, carry out supersound process 10-25min simultaneously; As VS/TS<0.7, adopt processing scheme II, be namely the dilute hydrochloric acid solution soaking step one gained floating stuffing of 0.5%-1.5% with mass percent concentration, carry out supersound process 15-30min simultaneously.
Further, in described processing scheme I and processing scheme II, ultrasound intensity is 25-35kHz, and the volume ratio of floating stuffing and soaking solution is 0.4-1.0.
Further, step 4 employing pressure is that the water of 0.2-0.3MPa rinses filler, removes filling surface and loosens the microbial film but do not departed from.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following unusual effect:
(1) the aging biomembranous dystopy activation method of a kind of floating stuffing of the present invention, according to the difference of aging microbial film character, with microbial film volatile solid content for criterion, distinguish the aging microbial film of two classes such as organic matter accumulation type and inorganic salt appositional pattern, adopt and combine preferred version targetedly, time is short, efficiency is high, and elutriant is reusable, and cost is low;
(2) the aging biomembranous dystopy activation method of a kind of floating stuffing of the present invention, for the aging microbial film of organic matter accumulation type, adopt biodegradable, environmentally friendly bio-surfactant, avoid secondary pollution, and the deactivation for the treatment of processes to contaminant degradation related microorganisms in microbial film can be alleviated to greatest extent, shorten the time upgrading activation;
(3) the aging biomembranous dystopy activation method of a kind of floating stuffing of the present invention, efficiently solves the aging microbial film of floating stuffing and is difficult to nature and comes off and upgrade a difficult problem for activation, easy and simple to handle, and environmental friendliness, has wide application prospect.
Accompanying drawing explanation
Fig. 1 is the operational flowchart adopting method of the present invention to carry out the aging microbial film dystopy activation of floating stuffing.
Embodiment
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present embodiment, carries out the dystopy activation of the aging film of certain aerobic moving bed biofilm reactor floating stuffing.Floating stuffing is hollow cylinder, and inside is support support structure, external diameter and be highly respectively 25mm and 10mm, and density is about 0.96g/cm
3, effective ratio area is about 520m
2/ m
3.This reactor influent quality is: pH7.17 ~ 7.85, chemical oxygen demand (COD) 340 ~ 520mg/L, ammonia nitrogen 30 ~ 50mg/L, total nitrogen 60 ~ 90mg/L, total phosphorus 3.2 ~ 6.6mg/L, specific conductivity 580 ~ 730 μ S/cm.When moving to the 86th day, there is " foundry loam " in filling surface, and the clearance of chemical oxygen demand of waste water and ammonia nitrogen reduces by more than 15%, and microbial film need activate.
The concrete reactivation process of the present embodiment is:
Step one, take out from reactor and somely comprise aging biomembranous floating stuffing, be placed in receiving flask, add dehydrated alcohol, make ethanol mass percent concentration in receiving flask be 50%.
Step 2, microbial film volatile solid content to be measured; Receiving flask from step one takes out a certain amount of floating stuffing, and with distilled water rinse gently, adopt machinery to scrape and microbial film is peeled off from filling surface, obtained 2 parts of biological film suspend liquid, record every part of suspension vol V.Above-mentioned suspension is through 0.45 μm of membrane filtration (vacuum filtration) of prior oven dry, constant weight, to be placed in the baking oven of 105 DEG C with biomembranous filter membrane, dry to constant weight (2h), taking-up filter membrane is placed in moisture eliminator and places 0.5h, deduct former filter membrane weight after weighing, be the microbial film amount of dry matter M1 peeled off.Total solids level (TS) is amount of dry matter M1 and the ratio of suspension vol V, changes into mg/L.In the retort furnace filter membrane sample of above-mentioned another part of constant weight being placed in again 550 DEG C, calcination is to constant weight (1h), taking-up filter membrane is placed in after 0.5h placed by moisture eliminator weighs, weightlessness after calcination is volatile microbial film mass M 2, the ratio of M2 and suspension vol V, be volatile solid content (VS), change into mg/L.Calculating VS/TS, is 0.82 ± 0.068.
Step 3, be greater than 0.7 due to volatile solid content (VS/TS), adopt processing scheme I, i.e. bio-surfactant and ultrasonic coupling, be specially: simultaneously with mass percent concentration be 1% rhamnolipid solution soaking and ultrasonic (30kHz) pack processing containing aging biomembranous floating stuffing 20min, the volume ratio of filler and soak solution is 0.6.
Step 4, the water adopting pressure to be 0.2MPa rinse the filler after step 3 process, and washing is removed filling surface and loosened the microbial film but do not departed from.After this step process, aging biofilm detachment rate reaches about 85% (weight in wet base);
Step 5, will containing a small amount of biomembranous floating stuffing return throw to reactor, complete dystopy activation: floating stuffing is repeated step 3, step 4 in batches, return in the lump afterwards throw to reactor.After 2 days, the clearance of chemical oxygen demand of waste water and ammonia nitrogen comparatively activates front raising about 12%, shows that microbial film tentatively completes and upgrades growth.
Contriver points out, traditional chemical treatment (acid, alkali, oxygenant etc.) method, although cost is lower, effect better, its non-selectivity, can produces deactivation, and easily produce secondary pollution to contaminant degradation related microorganisms in microbial film; Ferment treatment in biological treatment can optionally degradation characteristic composition (protein, polysaccharide etc.), promote that aging microbial film is peeled off, but by its comparatively easy in inactivation of water quality impact (temperature, pH, toxicant etc.), and cost is higher.
Microbial film, primarily of microorganism and extracellular polymeric composition thereof, have the feature of heterogeneous heterogeneity, and due to the difference for the treatment of sewage water quality, also there is notable difference in biomembranous physico-chemical property.Therefore, when activating aging microbial film, on the basis investigating its fundamental characteristics, processing scheme targetedly should be proposed.Aging microbial film is made up of organism and inorganics, and wherein, the main body-biophase (bacterium, protozoon etc.) of degradation of contaminant mainly exists with organism form.For aging biomembranous activation, microbial film should be strengthened from the stripping of filling surface, the loss or the deactivation that alleviate contaminant degradation related microorganisms microbial film to greatest extent simultaneously, to shorten the follow-up time upgrading activation.Based on this, aging microbial film is divided into organic matter accumulation type and the large class of inorganic salt appositional pattern two by the present embodiment, adopts processing scheme targetedly respectively.Use for reference the differentiation (VS/TS) of solids organic composition, by the research to microbial film VS/TS, proposing " VS/TS=0.7 " is the aging biomembranous dividing point of two types, to protect beneficial organism phase in microbial film and to obtain actual activation effect.
The present embodiment is according to biomembranous fundamental characteristics, design adopts and combines preferred version targetedly: for the aging microbial film of organic matter accumulation type, adopt biodegradable, environmentally friendly bio-surfactant, impel microbial film to peel off from filling surface by strengthening to the solublization of microorganism extracellular polymeric, alleviate the loss of contaminant degradation related microorganisms in microbial film to greatest extent; For the aging microbial film of inorganic salt appositional pattern, adopt dilute acid soln process in short-term, strengthen the chemical dissolution of salt crust, slow down deactivation to nearly filler side biofilm microorganisms simultaneously.Efficiently solve the aging microbial film of floating stuffing to be difficult to nature and to come off and upgrade a difficult problem for activation, easy and simple to handle, and environmental friendliness, there is wide application prospect.
Embodiment 2
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present embodiment, carries out the dystopy activation of the aging film of certain anoxic fluidized bed bio membrane reactor floating stuffing.Floating stuffing is hollow cylinder, and inside is support support structure, external diameter and be highly respectively 25mm and 10mm, and density is about 0.98g/cm
3, effective ratio area is about 460m
2/ m
3.This reactor influent quality is: pH7.32 ~ 7.87, chemical oxygen demand (COD) 1500 ~ 2820mg/L, ammonia nitrogen 10 ~ 18mg/L, total nitrogen 54 ~ 86mg/L, total phosphorus 13 ~ 24mg/L, specific conductivity 11864 ~ 16850 μ S/cm.When moving to the 68th day, the clearance of chemical oxygen demand of waste water and ammonia nitrogen reduces by more than 20%, and filling surface microbial film occurs aging, need activate.
The concrete reactivation process of the present embodiment is:
Step one, take out from reactor and somely comprise aging biomembranous floating stuffing, be placed in receiving flask, add dehydrated alcohol, make alcohol concn in receiving flask be 52%.
Step 2, microbial film volatile solid content to be measured; Receiving flask from step one takes out a certain amount of floating stuffing, with distilled water rinse gently, adopts ultrasonic (25kHz, 5min) to peel off and microbial film is peeled off from filling surface, obtained biological film suspend liquid, record suspension vol V.Above-mentioned suspension is through 0.45 μm of membrane filtration (vacuum filtration) of prior oven dry, constant weight, to be placed in the baking oven of 105 DEG C with biomembranous filter membrane, dry to constant weight (2h), taking-up filter membrane is placed in moisture eliminator and places 0.5h, deduct former filter membrane weight after weighing, be the microbial film amount of dry matter M1 peeled off.Total solids (TS) is amount of dry matter M1 and the ratio of suspension vol V, changes into mg/L.In the retort furnace filter membrane sample of above-mentioned constant weight being placed in again 550 DEG C, calcination is to constant weight (1h), taking-up filter membrane is placed in after 0.5h placed by moisture eliminator weighs, weightlessness after calcination is volatile microbial film mass M 2, the ratio of M2 and suspension vol V, be volatile solid content (VS), change into mg/L.Calculating VS/TS, is 0.68 ± 0.054.
Step 3, be less than 0.7 due to volatile solid content (VS/TS), adopt processing scheme II, namely dilute hydrochloric acid soaks and ultrasonic coupling, be specially: the dilute hydrochloric acid solution being simultaneously 1.5% with mass percent concentration soaks and ultrasonic (35kHz) pack processing contains aging biomembranous floating stuffing 20min, and the volume ratio of filler and soak solution is 0.5.
Step 4, the water adopting pressure to be 0.3MPa rinse the filler after step 3 process, and washing is removed filling surface and loosened the microbial film but do not departed from.After this step process, aging biofilm detachment rate reaches about 92% (weight in wet base);
Step 5, will containing a small amount of biomembranous floating stuffing return throw to reactor, complete dystopy activation: floating stuffing is repeated step 3, step 4 in batches, return in the lump afterwards throw to reactor.After 6 days, before the clearance of chemical oxygen demand of waste water and ammonia nitrogen comparatively activates, improve 15% and 12% respectively, show that microbial film tentatively completes and upgrade growth.
Embodiment 3
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present embodiment, basic with embodiment 1, its difference is: the step 3 of the present embodiment with mass percent concentration be 0.5% rhamnolipid solution soaking and ultrasonic (35kHz) pack processing containing aging biomembranous floating stuffing 25min, the volume ratio of filler and soak solution is 0.4.
Embodiment 4
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present embodiment, basic with embodiment 1, its difference is: the step 3 of the present embodiment with mass percent concentration be 2.5% rhamnolipid solution soaking and ultrasonic (25kHz) pack processing containing aging biomembranous floating stuffing 10min, the volume ratio of filler and soak solution is 1.0.
Embodiment 5
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present embodiment, basic with embodiment 2, its difference is: the dilute hydrochloric acid solution that the step 3 of the present embodiment is 0.5% with mass percent concentration simultaneously soaks and ultrasonic (25kHz) pack processing contains aging biomembranous floating stuffing 30min, and the volume ratio of filler and soak solution is 0.4.
Embodiment 6
The aging biomembranous dystopy activation method of a kind of floating stuffing of the present embodiment, basic with embodiment 2, its difference is: the dilute hydrochloric acid solution that the step 3 of the present embodiment is 1.0% with mass percent concentration simultaneously soaks and ultrasonic (30kHz) pack processing contains aging biomembranous floating stuffing 15min, and the volume ratio of filler and soak solution is 1.0.
What deserves to be explained is; to those skilled in the art; under design of the present invention and specific embodiment enlightenment; some distortion that can directly derive from the disclosure of invention and general knowledge or associate; those of ordinary skill in the art will recognize also can adopt additive method; or in prior art, commonly use substituting of known technology; and the unsubstantiality of mutual various combination between feature etc. is changed; can be employed equally; function and the effect of the present invention's description can be realized; expansion of illustrating no longer is one by one described in detail, all belongs to scope.
Claims (6)
1. the aging biomembranous dystopy activation method of floating stuffing, the steps include:
Step one, from stain disease treatment reactor take out comprise aging biomembranous floating stuffing;
Step 2, microbial film volatile solid content to be measured;
Step 3, select different processing schemes respectively according to step 2 gained volatile solid content numerical value, aging microbial film is processed;
Step 4, washing are removed filling surface and are loosened the microbial film but do not departed from;
Step 5, will containing a small amount of biomembranous floating stuffing return throw to reactor, complete dystopy activation.
2. the aging biomembranous dystopy activation method of a kind of floating stuffing according to claim 1, it is characterized in that: in step one, floating stuffing is placed in receiving flask, and add dehydrated alcohol, in receiving flask, the mass percent concentration of ethanol is 48%-52%.
3. the aging biomembranous dystopy activation method of a kind of floating stuffing according to claim 2, is characterized in that: in step 2, microbial film volatile solid content mensuration process is as follows:
(1) receiving flask from step one takes out floating stuffing, uses distilled water rinse, and employing machinery scrapes or ultrasonic peeling off makes microbial film peel off from filling surface, obtained biological film suspend liquid, record suspension vol V;
(2) by the 0.45 μm membrane filtration of step (1) gained suspension through prior oven dry, constant weight; And be placed in biomembranous filter membrane in the baking oven of 105 DEG C, dry to constant weight;
(3) step (2) gained filter membrane is placed in the dry 0.5h of moisture eliminator, deducts former filter membrane weight after weighing, be the microbial film amount of dry matter M1 peeled off, amount of dry matter M1 is total solids level TS with the ratio of suspension vol V;
(4) in retort furnace step (2) gained filter membrane being placed in 550 DEG C, calcination is to constant weight, take out after filter membrane is placed in the dry 0.5h of moisture eliminator and weigh, weightlessness after calcination is volatile microbial film mass M 2, and volatile microbial film mass M 2 is volatile solid content VS with the ratio of suspension vol V; Volatile solid content VS is microbial film volatile solid content VS/TS with the ratio of total solids level TS.
4. the aging biomembranous dystopy activation method of a kind of floating stuffing according to claim 3, it is characterized in that: in step 3, when VS/TS >=0.7, adopt processing scheme I, namely be rhamnolipid or the alkyl glycoside solution steeping step one gained floating stuffing of 0.5%-2.5% with mass percent concentration, carry out supersound process 10-25min simultaneously; As VS/TS<0.7, adopt processing scheme II, be namely the dilute hydrochloric acid solution soaking step one gained floating stuffing of 0.5%-1.5% with mass percent concentration, carry out supersound process 15-30min simultaneously.
5. the aging biomembranous dystopy activation method of a kind of floating stuffing according to claim 4, is characterized in that: in described processing scheme I and processing scheme II, ultrasound intensity is 25-35kHz, and the volume ratio of floating stuffing and soaking solution is 0.4-1.0.
6. the aging biomembranous dystopy activation method of a kind of floating stuffing according to claim 5, is characterized in that: step 4 employing pressure is that the water of 0.2-0.3MPa rinses filler, removes filling surface and loosens the microbial film but do not departed from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607465.8A CN105110470B (en) | 2015-09-22 | 2015-09-22 | A kind of dystopy activation method of the aging biomembrane of floating stuffing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607465.8A CN105110470B (en) | 2015-09-22 | 2015-09-22 | A kind of dystopy activation method of the aging biomembrane of floating stuffing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105110470A true CN105110470A (en) | 2015-12-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105600921A (en) * | 2015-12-18 | 2016-05-25 | 南京大学 | In-situ activation method of filler-aged biofilm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105600921B (en) * | 2015-12-18 | 2018-10-30 | 南京大学 | A kind of in-situ activation method of filler aging biomembrane |
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