A kind of colonization method for being used to handle the filler of sanitary sewage
Technical field
The invention belongs to sanitary sewage disposal technical field, more particularly to a kind of extension for being used to handle the filler of sanitary sewage
Film method.
Background technology
The biological treatment of sewage is broadly divided into activated sludge process, biomembrance process and natural ecological resource.
Activated sludge process fluctuation of service, needs regular spoil disposal, easy sludge bulking, to the wastewater treatment efficiency of low concentration compared with
Difference, it is unsuitable for residents domestic sewage treatment device;Natural ecological resource mainly includes stabilization pond, slow land treatment system, quick
Filtration system, overland flow treatment system, wet land treating system and underground seepage & filter treatment system etc., its have floor space compared with
Greatly, the shortcomings of load is smaller, it is unsuitable for being individually used for the processing of dispersant type domestic wastewater;The technique of biomembrance process mainly has biology
Rotating disk, biofilter, biological fluidized bed and bio-contact oxidation etc., its essence is the microorganisms such as heterotroph, nitrifier by dividing
Secrete the materials such as extracellular polymeric to be attached on filtrate or carrier, growth and breeding, form biomembrane.It has that sludge age is longer, fits
In the growth attachment that the generation cycles such as nitrifier are longer, the problem of no sludge bulking, the adaptability that is changed to water quality, water
By force, the sludge settling to come off is good, can handle the sewage of low concentration, the advantages that operation easy to maintain and energy-conservation, suitable for distributing
The processing of sanitary sewage.
At present, China rural area exist sewage disposal carbon and nitrogen removal it is ineffective, it is difficult to reach the water outlet water of different regions
The problem of matter standard.To find out its cause, the habits and customs of different geographical resident, water habits and number of users are different, influent quality
Complexity, the sewage disposal device starting period is caused to be grown, it is difficult to the operation mechanism brought into normal play.
Therefore, how to shorten the startup time using biomembrance process as the sewage disposal device of core, ensure equipment in short-term
The interior operation mechanism brought into normal play, it is most important to the carbon and nitrogen removal effect of sanitary sewage to improve equipment.
The content of the invention
For overcome the deficiencies in the prior art, the invention provides a kind of biofilm side for being used to handle the filler of sanitary sewage
Method, solve the problems, such as that domestic sewage treatment device biofilm is slow, there is the biofilm effect for improving nitrifier, shortening equipment to start for it
The effect of time.
The present invention uses following technical proposals:
A kind of colonization method for being used to handle the filler of sanitary sewage, comprises the following steps:
Step 1:Activated sludge is inoculated into the sequencing batch reactor equipped with filler, vexed to expose 2 days, mud mixed liquid of degrading
In original nutriment, microorganism is in the endogenous respiration phase, while increase the time of contact of sludge and carrier;
Step 2:Nutritional agents is added, promotes the growth and breeding of microorganism, with quiet heavy 1h, draining 0.5h, water inlet 0.5h and exposure
Gas 10h runs 2 cycles, biofilm enters the reversible biofilm stage by irreversible biofilm daily as a cycle of operation;
Step 3:Change service condition and sludge concentration, using quiet heavy 1h, draining 0.5h, water inlet 0.5h and aeration 22h as
One cycle of operation, 1 cycle is run daily, nutrition and the oxygen of abundance are provided for biomembrane, remain suitable for nitrifier existence
The environmental condition (temperature, pH and DO) of growth, nitrifier adhesion amount is improved, increase biofilm thickness, improve the anti-impact of biomembrane
Hit the ability of load;Biofilm process is completed after persistently cultivating a couple of days.
Further, in described step 2, persistently cultivate to 7 days, biofilm enters reversible biofilm rank by irreversible biofilm
Section.
Further, in described step 2, maintenance DO is 4-6mg/L, temperature>20℃.
Further, in described step 3, persistently cultivate to 10 days, complete biofilm process.
Further, described nutritional agents includes medicament stoste and micro- stoste, and described medicament stoste includes second
Sour sodium, 513mg/L;Ammonium chloride, 308mg/L, dipotassium hydrogen phosphate, 220mg/L, CALCIUM CHLORIDE DIHYDRATE, 5mg/L and seven hydrated sulfuric acids
Magnesium, 50mg/L;
Described micro- stoste includes FeSO4·7H2O, 1g/L;MnSO4·4H2O, 4g/L;ZnSO4·7H2O,
8.8g/L;CoCl2·6H2O, 0.4g/L;H3BO4, 0.56g/L;Na2MoO4·2H2O, 0.52g/L;CuSO4·5H2O, 0.2g/L
And NiCl2·6H2O, 0.2g/L.
Further, the filling rate of the filler in described sequencing batch reactor is 50%.
Further, activated sludge concentration is 2000mg/L in described step 1.
Further, after the completion of biofilm, it is 300mg/L, NH that biofilm filler is put into COD3- N is 35mg/L nutrition
In agent, the COD of biofilm filler clearance and NH are detected after lasting aeration3- N clearance.
Further, the filling rate of described biofilm filler is 50%.
Further, after being aerated 4h, COD clearance is investigated;After being aerated 22h, NH is investigated3- N clearance.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, the present invention is advantageous to a large amount of microorganisms attachments, increase life using specific surface area is big, the novel carriers of good hydrophilic property
Thing film thickness;
2nd, the present invention uses suitable nutrition agent prescription, controls different operational factor and sludge concentration, biofilm speed is fast,
Nitrifier biofilm effect is good, under the conditions of control environment, operation 10 days preliminary biofilms that can complete carrier of culture, significantly improves
Biofilm efficiency;
3rd, the present invention is easy to operate, practical, can shorten equipment and start the time.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the slow deficiency of domestic sewage treatment device biofilm in the prior art be present, in order to
Solves technical problem as above, present applicant proposes a kind of colonization method for being used to handle the filler of sanitary sewage.
In a kind of typical embodiment of the application, there is provided a kind of biofilm side for being used to handle the filler of sanitary sewage
Method, comprise the following steps:
Step 1:Appropriate filler is taken to be added in sequencing batch reactor, filling rate 50%;
Step 2:The activated sludge in certain appropriate sewage disposal plant aeration tank is taken, is added in sequencing batch reactor, sludge
Concentration is 2000mg/L, and small tolerance is vexed to expose 2 days, and microorganism is in the endogenous respiration phase, while is fully contacted with carrier;
Step 3:After vexed exposure terminates, the water distribution containing nutritional agents is added into sequencing batch reactor, with quiet heavy 1h, draining
(maintenance DO is 4-6mg/L, temperature by 0.5h, water inlet 0.5h and aeration 10h>20 DEG C) cycle of operation is used as, operation 2 daily
Cycle;Biofilm initial stage, the biomembrane of filler surface attachment is easy to fall off, persistently cultivates to 7 days, biofilm is entered by irreversible biofilm
Enter the reversible biofilm stage;
Wherein, described nutritional agents includes medicament stoste and micro- stoste, and described medicament stoste includes sodium acetate,
513mg/L;Ammonium chloride, 308mg/L;Dipotassium hydrogen phosphate, 220mg/L;CALCIUM CHLORIDE DIHYDRATE, 5mg/L and bitter salt,
50mg/L;
Described micro- stoste includes FeSO4·7H2O, 1g/L;MnSO4·4H2O, 4g/L;ZnSO4·7H2O,
8.8g/L;CoCl2·6H2O, 0.4g/L;H3BO4, 0.56g/L;Na2MoO4·2H2O, 0.52g/L;CuSO4·5H2O, 0.2g/L
And NiCl2·6H2O, 0.2g/L.
Step 4:Change service condition and sludge concentration, quick spoil disposal, added into sequencing batch reactor and contain nutritional agents
Water distribution, using quiet heavy 1h, draining 0.5h, water inlet 0.5h and aeration 22h be used as a cycle of operation, daily run 1 cycle, promote
Enter the growth of biomembrane, increase the thickness of biomembrane, to 10 days or so, the preliminary biofilm of carrier was completed for lasting culture.
Step 5:Biofilm filler is put into water distribution (wherein, COD 300mg/L, NH containing nutritional agents3- N is 35mg/L)
In, filling rate 50%, persistently aeration, separated in time sampling detects, and that investigates biofilm filler removes carbon effect and nitrification effect
Fruit.
As a result show, after being aerated 4h, COD clearance is 100%;After being aerated 22h, NH3- N clearance is 86%.
It can be seen that biofilm filler possesses preferable carbon and nitrogen removal effect.
Present application addresses domestic sewage treatment device biofilm it is slow the problem of, improve the biofilm effect of nitrifier, shortening is set
The standby starting period;By adding sludge, different operational factor and sludge concentration are controlled, accelerates nitrifier biofilm speed and biomembrane
Ripe speed, culture biofilm 10 days, completes preliminary biofilm.
The application is used for sewage disposal device, can acceleration equipment start, improve equipment treatment effect, and method is easy fast
Victory, feasibility and practical.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.