CN106277323A - A kind of method purifying sewage - Google Patents
A kind of method purifying sewage Download PDFInfo
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- CN106277323A CN106277323A CN201610796496.7A CN201610796496A CN106277323A CN 106277323 A CN106277323 A CN 106277323A CN 201610796496 A CN201610796496 A CN 201610796496A CN 106277323 A CN106277323 A CN 106277323A
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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
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Water Supply & Treatment (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
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Abstract
The invention discloses a kind of method purifying sewage, including step S1: screening amplification carries function bacterium, step S2: once throw in mixed microorganism microbial inoculum, step S3: increase the oxygen content of sewage aeration link, step S4: secondary throws in mixed microorganism microbial inoculum, step S5: improve backflow ratio and the reflow's cycle of mud.Sewage is processed according to above-mentioned steps, the yield of mud in Sewage Plant can be reduced on the basis of existing facility, make the materials such as TN, TP, BOD and COD in water body obtain digestion and metabolism, finally make the water quality reaching standard of sewage water body, thus reached the dilatation to Sewage Plant plant area and mentioned correctional effect.Present invention completely avoids the dependence to chemical agent simultaneously, not only reduce the processing cost of sewage, and the most useful to environment.
Description
Technical field
The present invention relates to the technical field of sewage disposal, be specifically related to one and utilize the fungal elicitor to realize sewage purification
Biological method.
Background technology
China is populous nation, uses water big country, hydropenia big country, and the country that water resource assignment is uneven, by March, 2014
The end, whole nation the planned city, the accumulative sewage treatment plant 3622 that builds up of county, design sewage treatment capacity about 1.53 billion cubic meters/day,
Along with the continuous enhancing of the increase of Quantity, the expansion of construction scale, and disposal ability, sewage treatment plant is improving cities and towns
Environmental quality plays an important role.But the phenomenons such as meanwhile, treatment facility operation ratio is low, effluent quality is the most up to standard are the most different
Degree ground exists, and has had a strong impact on the performance of sewage treatment plant's social benefit.China's Sewage Plant is produced during operation now
Raw problem is concentrated mainly on front end sewage and can not entirely collect and can not entirely process on this two hang-up with end contamination thing, thus causes
Sewage treatment plant itself is made to have become big blowdown main body.
The method that existing Sewage Plant administration way is mainly taked is to put into a large amount of flocculant to carry out flocculation sediment, increases dirt
Mud yield, promotes carbon source simultaneously and realizes the lifting of COD capacity, so that sewage disposal device stable operation, it addition, go back some
What enterprise taked is increases the mode of aeration to TN or the TP content reducing in water body, but less effective, waste simultaneously
Resource, chemical contamination and the sludge pollution of generation add burden for environment again.And the fund input of aforesaid way is huge, often
The water quality of individual municipal sewage plant does not reaches the sewage drainage standard of national requirements and middle water can use standard.Some sewage disposal
The administration way that factory takes is dilatation, increases the method that hardware facility puts into, but this kind of method can not fundamentally promote storehouse
Holding, its part increased also results in the mud generation amount of water factory to be increased, and water quality discharge is the most up to standard, and mud can pollute ring simultaneously
Border.Although its capacity increases, but mud has been given in its major part space, and the ability processing sewage does not carry from the point of view of for a long time
High.Therefore, the problem existed for present stage sewage treatment plant of China, it is badly in need of providing a kind of method more optimized to solve.
Summary of the invention
It is an object of the invention to provide a kind of method purifying sewage, for solving the sewage treatment plant of present stage China
Exist front end sewage can not entirely collect with end contamination thing can not entirely process a two difficult problem use existing method cannot obtain
To the problem solved.
To achieve these goals, the present invention provides following technical scheme: a kind of method purifying sewage, including walking as follows
Rapid:
Step S1: screening amplification carries functional flora
Extract sewage disposal sample from the fine fack outlet of Sewage Plant, in sewage disposal sample, add microorganism induction
Agent, mixed culture 3～4 months, cultivate functional flora of screening in every 2 months, altogether screening 3～5 times after terminating, by filter out
Functional flora is placed in culture fluid continuation and cultivates and amplification so that the functional flora concentration in culture fluid is 1 × 105～1.5 ×
105g/m3；
Step S2: once throw in mixed microorganism microbial inoculum
By culture fluid and the fungal elicitor containing functional flora in step S1 with mass ratio as 1000:3.0～1000:
1.3 mix homogeneously, are configured to mixed microorganism microbial inoculum, by above-mentioned mixed microorganism microbial inoculum in the sewage of fine fack water outlet link
Throw in；
Step S3: increase the oxygen content of sewage aeration link
The aeration rate of aeration link in regulation Sewage Plant, to increase the content of dissolved oxygen in sewage so that at aeration ring
Oxygen content in the sewage of joint is 6.0～7.0mg/L；
Step S4: secondary throws in mixed microorganism microbial inoculum
After sewage enters anaerobism link, in sewage, secondary throws in mixed microorganism microbial inoculum, described mixed microorganism bacterium
The input standard of agent is the mixed microorganism microbial inoculum that every cubic metre of water body adds 2.5～4 liters；
Step S5: improve backflow ratio and the reflow's cycle of mud
Improve backflow ratio and the reflow's cycle of mud so that mud is when the time of staying of anaerobism link is original setting
Between 2～4 times so that mud is original arrange the time 3～5 times in the capacity of returns of high oxygen consumption link.
Preferably, described the fungal elicitor is the mixture of saccharide, ferment and enzyme.
Preferably, in described step S1, the fungal elicitor and sewage disposal sample are that 1:1000 mixes according to mass ratio
Closing, form combined sewage sample, this combined sewage sample is placed in the environment of temperature is 25～37 DEG C and cultivates.
Preferably, the ratio that in described step S2, mixed microorganism microbial inoculum is thrown in the sewage of fine fack water outlet link is pressed
Regulate according to following steps:
A () front 3～the debugging stage that 4 months is Sewage Plant, in this sewage, the input ratio of mix bacterium agent is every day in stage:
First sewage is thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 1 liter, and second batch sewage is according to every cube
The ratio of the mix bacterium agent of meter Shui Ti and 0.7 liter is thrown in, and the 3rd batch of sewage is according to every cubic metre of water body and the mixing of 0.5 liter
The ratio of microbial inoculum is thrown in；
B () debugging stage enters the stable operation stage of Sewage Plant after terminating, this stage is according to every cubic metre of water body and 1 liter
The ratio of mix bacterium agent throw in.
Preferably, described step S3 increases the oxygen content of sewage aeration link, front 3～debugging rank that 4 months is Sewage Plant
Section, this stage need to 4～6 angels be monthly 6.0～7.0g/m in the sewage oxygen content of aeration link3, stage enters Sewage Plant
Stable operation stage, this stage need monthly 1～2 angel's sewage be 6.0～7.0g/m in the oxygen content of aeration link3。
Compared to prior art, a kind of method purifying sewage of the present invention has the advantage that the present invention passes through
In sewage, add the fungal elicitor to filter out the functional flora that mud is carried, and the functional flora that this is filtered out with
The fungal elicitor is configured to mixed microorganism microbial inoculum, renders in sewage by this mixed microorganism microbial inoculum secondary, coordinates dirt
In water treatment procedure, each operational factor is adjusted, thus reduces the yield of mud in Sewage Plant, make the TN in sewage water body,
The materials such as TP, BOD and COD have obtained digestion and metabolism, have cultivated stable auto purification organism, it is ensured that food chain in sewage
Completely, finally making the water quality reaching standard of sewage water body, the microbial inoculum contained in sewage is the most useful to environment.Technique in the present invention should
It is used in concrete sewage treatment plant, makes original active mud content reduce 75% via the process of this technique, former water factory
Levels of emissions risen to one-level A from one-level B.
The present invention purifies the method for sewage, is 3～4 months during debugging, and the later stage just can be stablized and automatically run, and whole
All without the extra infrastructure increasing Sewage Plant in stage, on the basis of existing facility, add the service ability of water factory,
Reach the dilatation to Sewage Plant plant area and mentioned correctional effect, also having reached to save hardware facility cost and the effect of cost of land
Really.No matter the sludge yield of Sewage Plant is how high, and the process of the present invention is the most applicable.In the governance process of Sewage Plant,
The microbial inoculum used is the functional flora that sewage carries, without any external strain, at environmental beneficial.Therefore, this is used
Bright technique can avoid the dependence to chemical agent completely, especially decreases the use to chemical flocculation reagent, simplifies fortune
Row technique, has saved the energy, reduces the operating cost of sewage water factory, it is possible to reaches the safety dumping of water quality, improves sewage
The economic worth for the treatment of plant.
Detailed description of the invention
The invention provides many applicable creative concepts, this creativeness concept can be reflected in a large number of concrete upper
Hereinafter.Specific embodiment described in the following embodiments of the present invention is only used as the detailed description of the invention of the present invention
Exemplary illustration, and be not meant to limit the scope of the invention.
Below in conjunction with specific embodiment, the invention will be further described.
The present invention is improvement based on activated sludge process, and activated sludge process is a kind of sewage based on activated sludge
Aerobic biological process method, is the most widely used method of Treating Municipal Sewage, is by Aeration tank, sedimentation tank, sludge recirculation system
Discharge system composition with excess sludge, be well known to those skilled in the art, therefore be not described in detail in this.
Embodiment one
The present embodiment provides a kind of method purifying sewage, comprises the steps.
Step S1: screening amplification carries functional flora
Carry out being mixed to prepare the fungal elicitor by saccharide, ferment and enzyme.
Extract sewage sample from Sewage Plant fine fack water outlet, enter according to the mass ratio of 1000:1 with the fungal elicitor
Row mixing, forms combined sewage sample, preserves in the environment of this combined sewage sample is placed in room temperature (25～37 DEG C), with
Set up the control environment of functional flora.This combined sewage sample has co-cultured 3 months, cultivates after terminating combined sewage sample
In functional flora screen, every 2 months screening once, screened altogether 3 times, to filter out the functional flora in sewage.
Screening process be will cultivate after sewage Sample Dilution 10～1000 times after on solid medium use coating, line method
Carry out screening and separating.The present embodiment is preferably sewage Sample Dilution 100 times.
The functional flora filtered out is put in culture fluid and cultivates, after cultivating 8 days, carry out the function of 3 days by a definite date
The amplification of flora.So that the concentration of functional flora reaches 1.2 × 10 in culture fluid6g/m3。
Step S2: once throw in mixed microorganism microbial inoculum
Produce the culture fluid containing functional flora obtained through step S1, carry out proportioning, culture fluid with the fungal elicitor
It is 1000:2.5 with the mass ratio of the fungal elicitor, forms mixed microorganism microbial inoculum.
This mixed microorganism microbial inoculum is added in the water outlet link of fine fack.The input of this mixed microorganism microbial inoculum divides two
The individual different stage controls, the debugging stage that 3 months is Sewage Plant that (a) starts most, mixed in this sewage every day in stage
The input ratio closing microbial inoculum is: first sewage is thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 1 liter, the
Two batches of sewage are thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 0.7 liter, and the 3rd batch of sewage is according to every cube
The ratio of the mix bacterium agent of water body and 0.5 liter is thrown in, and all throws according to said ratio every day in stage in debugging；(b)
After the debugging stage, then Sewage Plant enters stable operation stage, in stable operation stage according to every cubic metre of water body and 1 liter
The ratio of mix bacterium agent throw in.
Owing to the scale of each Sewage Plant is different, above-mentioned first, second batch and the 3rd batch of volume that sewage is concrete be according to respectively
The scale of Sewage Plant specifically determines.
Adding of mixed microorganism microbial inoculum uses automatization's spray appliance, can reduce the input of cost of labor, and control
Amount is more accurate, adds effect more preferable.
Step S3: increase the oxygen content of sewage aeration link
Activated sludge process includes aeration link, carries out in Aeration tank, and Aeration tank is the heart of activated sludge process, its effect
It is that stirring mixed liquor makes mud, water be fully contacted and to microorganism oxygen supply.
Quickly regulate the aeration rate in Sewage Plant thus quickly increase the oxygen content dissolved in sewage water body, this step pair
The regulation of aeration link aeration rate is corresponding with the stage once throwing in mixed microorganism microbial inoculum in step S2.3 started most
The moon is the debugging stage of Sewage Plant, at this stage control time chien shih of the most continuous 5 days in the sewage oxygen content of aeration link is
6.0～7.0g/m3, after the debugging stage, then Sewage Plant enters the stage of stable operation, controls every in stable operation stage
The time chien shih of continuous 2 days of the moon is 6.0～7.0g/m in the sewage oxygen content of aeration link3。
Step S4: secondary throws in mixed microorganism microbial inoculum
When sewage enters after anaerobism link, in sewage, again throw in mixed microorganism microbial inoculum, the interpolation in this stage according to
The mixed microorganism microbial inoculum of every cubic metre of sewage water body and 3 liters realizes proportioning.This stage add mixed microorganism microbial inoculum be in order to
Reduce the oxygen content in water body, thus expand zoogleic generation.
Certainly, what the adding of this stage mixed microorganism microbial inoculum was also adopted by is automatization's spray appliance, reduces cost of labor
Input.
Step S5: improve backflow ratio and the reflow's cycle of mud
Via step S4, the sludge content entered in the sewage of sludge recirculation system can significantly reduce, and thread flora is bright
Aobvious suppression, zoogloea produces in a large number, but also has partial sludge the most well to be processed simultaneously, therefore improves the backflow of mud
Ratio and reflow's cycle so that the sewage after regulation is in the time of staying that the time of staying of anaerobism link is former anaerobism link sewage
3 times, meanwhile, improve sewage in the capacity of returns of high oxygen consumption link so that sewage is original height in the capacity of returns of high oxygen consumption link
4 times of the capacity of returns of oxygen consumption link.
Embodiment two
The present embodiment provides a kind of method purifying sewage, comprises the steps.
Step S1: screening amplification carries functional flora
Carry out being mixed to prepare the fungal elicitor by saccharide, ferment and enzyme.
Extract sewage sample from Sewage Plant fine fack water outlet, enter according to the mass ratio of 1000:1 with the fungal elicitor
Row mixing, forms combined sewage sample, preserves in the environment of this combined sewage sample is placed in room temperature (25～37 DEG C), with
Set up the control environment of functional flora.This combined sewage sample has co-cultured 3.5 months, cultivates after terminating combined sewage sample
In functional flora screen, every 2 months screening once, screened altogether 4 times, to filter out the functional flora in sewage.
The functional flora filtered out is put in culture fluid and cultivates, after cultivating 9 days, carry out the function of 3 days by a definite date
The amplification of flora.So that the concentration of functional flora reaches 1.5 × 10 in culture fluid5g/m3。
Step S2: once throw in mixed microorganism microbial inoculum
Produce the culture fluid containing functional flora obtained through step S1, carry out proportioning, culture fluid with the fungal elicitor
It is 1000:1.3 with the mass ratio of the fungal elicitor, forms mixed microorganism microbial inoculum.
This mixed microorganism microbial inoculum is added in the water outlet link of fine fack.The input of this mixed microorganism microbial inoculum divides two
The individual different stage controls, the debugging stage that 4 months is Sewage Plant that (a) starts most, mixed in this sewage every day in stage
The input ratio closing microbial inoculum is: first sewage is thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 1 liter, the
Two batches of sewage are thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 0.7 liter, and the 3rd batch of sewage is according to every cube
The ratio of the mix bacterium agent of water body and 0.5 liter is thrown in, and all throws according to said ratio every day in stage in debugging；(b)
After the debugging stage, then Sewage Plant enters stable operation stage, in stable operation stage according to every cubic metre of water body and 1 liter
The ratio of mix bacterium agent throw in.
Owing to the scale of each Sewage Plant is different, above-mentioned first, second batch and the 3rd batch of volume that sewage is concrete be according to respectively
The scale of Sewage Plant specifically determines.
Step S3: increase the oxygen content of sewage aeration link
Quickly regulate the aeration rate in Sewage Plant thus quickly increase the oxygen content dissolved in sewage water body, this step pair
The regulation of aeration link aeration rate is corresponding with the stage once throwing in mixed microorganism microbial inoculum in step S2.4 started most
The moon is the debugging stage of Sewage Plant, at this stage control time chien shih of the most continuous 4 days in the sewage oxygen content of aeration link is
6.0～7.0g/m3, after the debugging stage, then Sewage Plant enters the stage of stable operation, controls every in stable operation stage
The time chien shih of 1 day moon is 6.0～7.0g/m in the sewage oxygen content of aeration link3。
Step S4: secondary throws in mixed microorganism microbial inoculum
When sewage enters after anaerobism link, in sewage, again throw in mixed microorganism microbial inoculum, the input in this stage according to
The mixed microorganism microbial inoculum of every cubic metre of sewage water body and 4 liters carries out proportioning.This stage add mixed microorganism microbial inoculum be in order to
Reduce the oxygen content in water body, thus expand zoogleic generation.
Step S5: improve backflow ratio and the reflow's cycle of mud
Via step S4, the sludge content entered in the sewage of sludge recirculation system can significantly reduce, and thread flora is bright
Aobvious suppression, zoogloea produces in a large number, but also has partial sludge the most well to be processed simultaneously, therefore improves the backflow of mud
Ratio and reflow's cycle so that the sewage after regulation is in the time of staying that the time of staying of anaerobism link is former anaerobism link sewage
2 times, meanwhile, improve sewage in the capacity of returns of high oxygen consumption link so that sewage is original height in the capacity of returns of high oxygen consumption link
3 times of the capacity of returns of oxygen consumption link.
Embodiment three
The present embodiment provides a kind of method purifying sewage, comprises the steps.
Step S1: screening amplification carries functional flora
Carry out being mixed to prepare the fungal elicitor by saccharide, ferment and enzyme.
Extract sewage sample from Sewage Plant fine fack water outlet, enter according to the mass ratio of 1000:1 with the fungal elicitor
Row mixing, forms combined sewage sample, preserves in the environment of this combined sewage sample is placed in room temperature (25～37 DEG C), with
Set up the control environment of functional flora.This combined sewage sample has co-cultured 4 months, cultivates after terminating in combined sewage sample
Functional flora screen, every 2 months screening once, screened altogether 5 times, to filter out the functional flora in sewage.
The functional flora filtered out is put in culture fluid and cultivates, after cultivating 8.5 days, carry out the merit of 3 days by a definite date
The amplification of energy flora.So that the concentration of functional flora reaches 1.0 × 10 in culture fluid5g/m3。
Step S2: once throw in mixed microorganism microbial inoculum
Produce the culture fluid containing functional flora obtained through step S1, carry out proportioning, culture fluid with the fungal elicitor
It is 1000:3.0 with the mass ratio of the fungal elicitor, forms mixed microorganism microbial inoculum.
This mixed microorganism microbial inoculum is added in the water outlet link of fine fack.The input of this mixed microorganism microbial inoculum divides two
The individual different stage controls, the debugging stage that 3.5 months is Sewage Plant that (a) starts most, in this sewage every day in stage
The input ratio of mix bacterium agent is: first sewage is thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 1 liter,
Second batch sewage is thrown according to the ratio of every cubic metre of water body and the mix bacterium agent of 0.7 liter, and the 3rd batch of sewage is according to often standing
The ratio of the mix bacterium agent of Fang Shuiti and 0.5 liter is thrown in, and all throws according to said ratio every day in stage in debugging；
(b) after the debugging stage, then Sewage Plant enter stable operation stage, stable operation stage according to every cubic metre of water body with
The ratio of the mix bacterium agent of 1 liter is thrown in.
Owing to the scale of each Sewage Plant is different, above-mentioned first, second batch and the 3rd batch of volume that sewage is concrete be according to respectively
The scale of Sewage Plant specifically determines.
Step S3: increase the oxygen content of sewage aeration link
Quickly regulate the aeration rate in Sewage Plant thus quickly increase the oxygen content dissolved in sewage water body, this step pair
The regulation of aeration link aeration rate is corresponding with the stage once throwing in mixed microorganism microbial inoculum in step S2.3.5 started most
Within individual month, be the debugging stage of Sewage Plant, the most continuous 6 days of this stage control time chien shih in the sewage oxygen content of aeration link
It is 6.0～7.0g/m3, after the debugging stage, then Sewage Plant enters the stage of stable operation, in stable operation stage control
The time chien shih of the most continuous 1.5 days is 6.0～7.0g/m in the sewage oxygen content of aeration link3。
Step S4: secondary throws in mixed microorganism microbial inoculum
When sewage enters after anaerobism link, in sewage, again throw in mixed microorganism microbial inoculum, the input in this stage according to
The mixed microorganism microbial inoculum of every cubic metre of sewage water body and 2.5 liters carries out proportioning.This stage add mixed microorganism microbial inoculum be for
Reduce the oxygen content in water body, thus expand zoogleic generation.
Step S5: improve backflow ratio and the reflow's cycle of mud
Via step S4, the sludge content entered in the sewage of sludge recirculation system can significantly reduce, and thread flora is bright
Aobvious suppression, zoogloea produces in a large number, but also has partial sludge the most well to be processed simultaneously, therefore improves the backflow of mud
Ratio and reflow's cycle so that the sewage after regulation is in the time of staying that the time of staying of anaerobism link is former anaerobism link sewage
4 times, meanwhile, improve sewage in the capacity of returns of high oxygen consumption link so that sewage is original height in the capacity of returns of high oxygen consumption link
5 times of the capacity of returns of oxygen consumption link.
Embodiment one～embodiment three can reduce the yield of mud in Sewage Plant according to the operating procedure in technique
Effect, makes the materials such as TN, TP, BOD and COD in sewage water body have also been obtained digestion and metabolism, finally makes the water of sewage water body
Matter is up to standard, and the microbial inoculum contained in sewage is the most useful to environment.The technique in embodiment is used to process in sewage treatment plant
Afterwards, original active mud content reduces 75%, and the levels of emissions of former water factory has risen to one-level A from one-level B.In embodiment
The method purifying sewage, is 3～4 months during debugging, and the later stage just can be stablized and automatically run, and in all stage all without
The extra infrastructure increasing Sewage Plant, just can reach to increase the service ability of water factory, to the dilatation of Sewage Plant plant area with mention
Correctional effect, has also reached to save hardware facility cost and the effect of cost of land.No matter the sludge yield of Sewage Plant is how high,
Process in embodiment is the most applicable.In the governance process of Sewage Plant, the microbial inoculum used is the merit that sewage carries
Energy flora, without any external strain, at environmental beneficial.Embodiment one～embodiment three can be avoided depending on chemical agent completely
Rely, especially decrease the use to chemical flocculation reagent, simplify operation process, saved the energy, reduce sewage water factory
Operating cost, it is possible to reach the safety dumping of water quality, improve the economic worth of sewage treatment plant.
It should be noted that above-described embodiment the present invention will be described rather than limits the invention, and this
Skilled person can design alternative embodiment without departing from the scope of the appended claims.In claim
In, any reference marks that should not will be located between bracket is configured to limitations on claims.Word " comprises " and is not excluded for depositing
In the element not arranged in the claims or step.
Claims (5)
1. the method purifying sewage, it is characterised in that comprise the steps:
Step S1: screening amplification carries functional flora
Extract sewage disposal sample from the fine fack outlet of Sewage Plant, in sewage disposal sample, add the fungal elicitor,
Mixed culture 3～4 months, cultivates functional flora of screening in every 2 months, altogether screening 3～5 times, the merit that will filter out after terminating
Continuation cultivation and amplification can be placed in culture fluid by flora so that the functional flora concentration in culture fluid is 1.0 × 105～1.5 ×
105g/m3；
Step S2: once throw in mixed microorganism microbial inoculum
By culture fluid and the fungal elicitor containing functional flora in step S1 with mass ratio as 1000:3.0～1000:1.3
Mix homogeneously, is configured to mixed microorganism microbial inoculum, is thrown by above-mentioned mixed microorganism microbial inoculum in the sewage of fine fack water outlet link
Put；
Step S3: increase the oxygen content of sewage aeration link
The aeration rate of aeration link in regulation Sewage Plant, to increase the content of dissolved oxygen in sewage so that in aeration link
Oxygen content in sewage is 6.0～7.0mg/L；
Step S4: secondary throws in mixed microorganism microbial inoculum
After sewage enters anaerobism link, in sewage, secondary throws in mixed microorganism microbial inoculum, described mixed microorganism microbial inoculum
Input standard is the mixed microorganism microbial inoculum that every cubic metre of water body adds 2.5～4 liters；
Step S5: improve backflow ratio and the reflow's cycle of mud
Improve the backflow ratio of mud and reflow's cycle so that mud is original to arrange the time in the time of staying of anaerobism link
2～4 times so that mud is original arrange the time 3～5 times in the capacity of returns of high oxygen consumption link.
The method of purification sewage the most according to claim 1, it is characterised in that described the fungal elicitor is saccharide, ferment
Element and the mixture of enzyme.
The method of purification sewage the most according to claim 1, it is characterised in that in described step S1 the fungal elicitor with
Sewage disposal sample is that 1:1000 mixes according to mass ratio, forms combined sewage sample, and this combined sewage sample is placed in temperature
Degree is cultivated in the environment of being 25～37 DEG C.
The method of purification sewage the most according to claim 1, it is characterised in that mixed microorganism microbial inoculum in described step S2
The ratio thrown in the sewage of fine fack water outlet link regulates in accordance with the following steps:
A () front 3～the debugging stage that 4 months is Sewage Plant, in this sewage, the input ratio of mix bacterium agent is every day in stage: first
Criticizing sewage to throw according to the ratio of every cubic metre of water body and the mix bacterium agent of 1 liter, second batch sewage is according to every cubic meter of water
The ratio of the mix bacterium agent of body and 0.7 liter is thrown in, and the 3rd batch of sewage is according to every cubic metre of water body and the mix bacterium agent of 0.5 liter
Ratio throw in；
B () debugging stage enters the stable operation stage of Sewage Plant after terminating, this stage is mixed according to every cubic metre of water body and 1 liter
The ratio closing microbial inoculum is thrown in.
The method of purification sewage the most according to claim 1, it is characterised in that described step S3 increases sewage aeration link
Oxygen content, front 3～debugging stage that 4 months is Sewage Plant, this stage needs the most continuous 4～6 angels in the dirt of aeration link
Water oxygen content is 6.0～7.0g/m3, stage enters the stable operation stage of Sewage Plant, and this stage needs the most continuous 1～2 day
Making sewage is 6.0～7.0g/m in the oxygen content of aeration link3。
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