CN107459148A - A kind of preparation method of biochemical composite dephosphorizing agent - Google Patents
A kind of preparation method of biochemical composite dephosphorizing agent Download PDFInfo
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- CN107459148A CN107459148A CN201710803931.9A CN201710803931A CN107459148A CN 107459148 A CN107459148 A CN 107459148A CN 201710803931 A CN201710803931 A CN 201710803931A CN 107459148 A CN107459148 A CN 107459148A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/14—Enzymes or microbial cells immobilised on or in an inorganic carrier
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The present invention relates to waste water treating agent technical field, and in particular to a kind of preparation method of biochemical composite dephosphorizing agent.Dephosphorization agent of the present invention carries out nitrification decomposition first with the dephosphorization microorganism of set to the organophosphor in waste water or inclined phosphorus,A part of phosphorus can be absorbed by the micro-organisms,It is accordingly changed into microorganism sludge,Another part phosphorus, which can be decomposed, to be converted into as positive phosphorus small molecule,This layer of microorganism of set simultaneously causes the iron ion of chelating and magnesium ion to discharge again,Iron ion and magnesium ion the collaboration free state metal oxide of these releases,Waste water middle or low price phosphoric acid salt cation is substituted,And the alumen ustum precipitation that bridge formation adsorption net catches into subphosphate Compound complex is carried out to most of phosphate anion,And build the introducing of slag,The hydroxyl polynuclear complex of high positive charge can be hydrolyzed to form in water,Absorptive complex wave dephosphorization is carried out to various phosphate anions,Finally the sediment of formation is removed and can reach dephosphorization purpose,Have broad application prospects.
Description
Technical field
The present invention relates to waste water treating agent technical field, and in particular to a kind of preparation method of biochemical composite dephosphorizing agent.
Background technology
Phosphorus is the critical nutrients for causing body eutrophication.In order to prevent body eutrophication, need to be discharged into rivers,
The sewage in lake carries out dephosphorization processing.At present, phosphorus removing method mainly includes chemical method, bioanalysis, chemical-biological integrated processes.Change
Absorption method in method, except phosphorus efficiency is quick, easily operated and recovery, non-secondary pollution, causes people's because having the characteristics that
Extensive concern.
Chemical method dephosphorization can only remove Phos, and for organophosphor or polyphosphoric acids often poor effect, and biology removes
Phosphorus is but just on the contrary, organophosphor can be handled.Therefore in many wastewater treatments scene, often doing using biology+chemical dephosphorization
Method, first pass through biological phosphate-eliminating and organophosphor is decomposed into positive phosphorus molecule, then by dephosphorization agent chemical precipitation method by phosphorus ligands, but this
Sample needs substep to add reagent twice, complex operation.
Therefore, a kind of biochemical composite integrated is invented, the Novel dephosphorization agent pair that Phos and can removes organophosphor can be removed
Waste water treating agent preparing technical field has positive meaning.
The content of the invention
Present invention mainly solves technical problem, can not remove organophosphor for the most frequently used chemical dephosphorization method at present, and
Phosphorus removing method associated with biochemistry needs substep to add reagent twice, the defects of complex operation, there is provided a kind of biochemical composite dephosphorization
The preparation method of agent.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of preparation method of biochemical composite dephosphorizing agent, it is characterised in that specifically preparation process is：
（1）Ground after diatomite and flyash are mixed, discharging obtains mixed-powder, and mixed-powder is soaked with citric acid solution
After take out, immediately with liquid nitrogen spraying 1~2min of freezing processing, freezing is dried after terminating, and obtains pre-processing mixed-powder, standby；
（2）Peach gum heating is made into its fusing, then sodium peroxide powder is added into the peach gum after fusing, clear-cutting forestland is extremely after stirring
Room temperature, peach gum is solidified again, obtain peach gum cladding sodium peroxide powder；
（3）Standby pretreatment mixed-powder and building slag and water are mixed to get mixture, then added into mixture
Sodium metasilicate powder and peach gum cladding sodium peroxide powder, heat temperature raising, are stirred, obtain mixed slurry；
（4）Above-mentioned mixed slurry is injected in stainless steel mould, stand foaming, foaming obtains porous body after terminating, will be porous
Taken out after blank sintering, 0.15~0.35mm aperture sieves are crossed after crushing, collection obtains the particle that sieves；
（5）By hydrodictyon reticulatum and water by etc. mass ratio mix after be put into grinding in mortar and obtain liver moss and starch, by liver moss slurry and above-mentioned mistake
It is put into greenhouse after sieve particulate matter mixing, cultivates 15~20 days naturally, until sieving particle surface moss-covered, produces dephosphorization agent
Crude product；
（6）Taken out after above-mentioned dephosphorization agent crude product is soaked with citric acid solution, then the dephosphorization agent crude product after immersion is used into chlorine successively
Change ferrous solution and magnesium chloride solution soaks respectively, obtain impregnating dephosphorization agent crude product；
（7）It is sealed by fermentation after above-mentioned dipping dephosphorization agent crude product and Denitrifying Phosphate Accumulating Organisms bacteria suspension are mixed, is taken out after fermentation ends
Tunning, packed after freeze-drying, produce a kind of biochemical composite dephosphorizing agent.
Step（1）Described in diatomite and flyash mass ratio be 2:1, the concentration of citric acid solution is 0.5mol/
L。
Step（2）Described in sodium peroxide powder addition be peach gum quality 50%.
Step（3）Described in pretreatment mixed-powder and to build the mass ratio of slag and water be 5:1:4, sodium silicate
End addition be mixture quality 3~5%, peach gum cladding sodium peroxide powder addition for mixture quality 5~
7%, the temperature of heat temperature raising is 90~100 DEG C, and it is 1~2min to be stirred the time.
Step（4）Described in the stand foaming time be 10~12h, sintering temperature is 700~800 DEG C, sintering time 1
~2h.
Step（5）Described in liver moss slurry and sieving particulate matter mass ratio be 2:1, the temperature in greenhouse is 25~30 DEG C,
Relative air humidity is 70~80%.
Step（6）Described in the mass fraction of citric acid solution be 30%, the concentration of ferric chloride solution is 1mol/L, chlorine
The concentration for changing magnesium solution is 0.5mol/L.
Step（7）Described in dipping dephosphorization agent crude product and Denitrifying Phosphate Accumulating Organisms bacteria suspension mass ratio be 2:1, denitrification
The concentration of polyP bacteria bacteria suspension is 109Cfu/mL, the temperature of sealing and fermenting is 35~45 DEG C, and the time of sealing and fermenting is 7~10
My god.
The beneficial effects of the invention are as follows：
（1）Dephosphorization agent of the present invention first with the diatomite with very big specific surface area and rich in free state metal oxide and
Flyash is raw material, and its internal void is further widened by acidleach, liquid nitrogen frozen, both adsorptivities of enhancing, then with surface band
There is the building slags of a large amount of electropositive hydroxyls as filler, foamed using sodium peroxide, obtain dephosphorization agent crude product after firing, then
Adhere to liver moss on dephosphorization agent crude product, and soaked with organic carboxyl acid so that organic carboxyl acid is immersed inside crude product, then uses organic carboxyl acid
Initial stage it is sequestering iron ion and magnesium ion sequestration are anchored in crude product inwall hole, finally with dephosphorization bacterial be blended ferment,
Crude product surface set dephosphorization microorganism again, is finally made dephosphorization agent, dephosphorization agent of the invention first with set the micro- life of dephosphorization
Thing carries out nitrification decomposition to the organophosphor in waste water or inclined phosphorus, and a part of phosphorus can be absorbed by the micro-organisms, and be accordingly changed into microorganism
Sludge, another part phosphorus, which can be decomposed, to be converted into as positive phosphorus small molecule, while this layer of microbes of set are by inside crude product
Lemon acid degradation in hole so that the iron ion and magnesium ion of chelating discharge again, these release iron ion and magnesium from
Free state metal oxide in son collaboration diatomite, flyash and building slag, to waste water middle or low price phosphoric acid salt cation
Substituted, and carry out bridge formation adsorption net to most of phosphate anion and catch into the alumen ustum of subphosphate Compound complex sinking
Form sediment, and iron ion adsorbs wander about as a refugee phosphorus and various organophosphors and production hydroxide colloid precipitation, and in the process of floccule body precipitation
Middle net catches a part of non-solubility phosphorus, forms sediment, and builds the introducing of slag, and high positive charge can be hydrolyzed to form in water
Hydroxyl polynuclear complex, to various phosphate anions carry out Absorptive complex wave dephosphorization, finally the sediment of formation is removed
Dephosphorization purpose is can reach, dephosphorization agent produced by the present invention is respectively provided with splendid removal effect to organophosphor and Phos, application
Have a extensive future.
Embodiment
It is 2 in mass ratio:1 will be fitted into 20~30min of grinding, discharging in ball mill after diatomite and flyash mixing obtains
Mixed-powder, taken out after being 1~2h of 0.5mol/L citric acid solutions immersion with concentration by mixed-powder, it is cold with liquid nitrogen spraying immediately
Freeze 1~2min of processing, freezing is put into baking oven after terminating, and 1~2h is dried at 105~110 DEG C, obtains pre-processing mixed-powder；
By peach gum heat temperature raising, 100~110 DEG C make its fusing, then the sodium peroxide of peach gum quality 50% is added into the peach gum after fusing
Powder, clear-cutting forestland makes peach gum solidify again, obtains peach gum cladding sodium peroxide powder to room temperature after stirring 10~15min；Press
Mass ratio is 5:1:Standby pretreatment mixed-powder and building slag and water are mixed to get mixture by 4, then to mixture
The peach gum cladding sodium peroxide powder of middle the sodium metasilicate powder for adding mixture quality 3~5% and mixture quality 5~7%, heating
90~100 DEG C are warming up to, is stirred 1~2min, obtains mixed slurry；Mixed slurry is injected in stainless steel mould, stood
Foam 10~12h, and foaming obtains porous body after terminating, and porous body is moved into sintering furnace, 1 is sintered at 700~800 DEG C
Taken out after~2h, be put into pulverizer after crushing 1~2h and cross 0.15~0.35mm aperture sieves, collection obtains the particle that sieves；By water
Net algae and water by etc. mass ratio mix after be put into grinding in mortar and obtain liver moss and starch, liver moss slurry and above-mentioned sieving particulate matter are pressed into matter
Amount is than being 2:Be put into temperature after 1 mixing as 25~30 DEG C, relative air humidity is in 70~80% greenhouse, naturally culture 15~
20 days, until sieving particle surface moss-covered, produces dephosphorization agent crude product；It is 30% lemon by dephosphorization agent crude product mass fraction
Acid solution soak 4~5h after take out, then by the dephosphorization agent crude product after immersion successively with concentration be 1mol/L ferric chloride solutions and
0.5mol/L magnesium chloride solutions soak 20~30min respectively, obtain impregnating dephosphorization agent crude product；Will dipping dephosphorization agent crude product and concentration
For 109Cfu/mL Denitrifying Phosphate Accumulating Organisms bacteria suspension is 2 in mass ratio:It is sealed by fermentation 7~10 days after 1 mixing, control fermentation temperature
Spend for 35~45 DEG C, tunning is taken out after fermentation ends, is packed after freeze-drying, produce a kind of biochemical composite dephosphorizing agent.
Example 1
It is 2 in mass ratio:1 will diatomite and flyash mix after is fitted into ball mill and grinds 20min, discharge and obtain mixed powder
End, taken out after being 0.5mol/L citric acid solutions immersion 1h with concentration by mixed-powder, immediately with liquid nitrogen spraying freezing processing
1min, freezing are put into baking oven after terminating, and 1h is dried at 105 DEG C, obtain pre-processing mixed-powder；By peach gum heat temperature raising 100
DEG C make its fusing, then the sodium peroxide powder of peach gum quality 50% is added into the peach gum after fusing, stir naturally extensive after 10min
Again to room temperature, peach gum is solidified again, obtain peach gum cladding sodium peroxide powder；It is 5 in mass ratio:1:4 by standby pre- place
Reason mixed-powder and building slag and water are mixed to get mixture, then the sodium metasilicate of mixture quality 3% is added into mixture
The peach gum of powder and mixture quality 5% coats sodium peroxide powder, is heated to 90 DEG C, is stirred 1min, is mixed
Slurry；Mixed slurry is injected in stainless steel mould, stand foaming 10h, foaming obtains porous body after terminating, by porous body
Move into sintering furnace, taken out after sintering 1h at 700 DEG C, be put into pulverizer after crushing 1h and cross 0.15mm aperture sieves, collect
To sieving particle；By hydrodictyon reticulatum and water by etc. mass ratio mix after be put into grinding in mortar and obtain liver moss and starch, by liver moss slurry and on
It is 2 in mass ratio to state sieving particulate matter:Temperature is put into after 1 mixing as 25 DEG C, relative air humidity is nature in 70% greenhouse
Culture 15 days, until sieving particle surface moss-covered, produces dephosphorization agent crude product；It is 30% by dephosphorization agent crude product mass fraction
Citric acid solution immersion 4h after take out, then by the dephosphorization agent crude product after immersion successively with concentration be 1mol/L ferric chloride solutions and
0.5mol/L magnesium chloride solutions soak 20min respectively, obtain impregnating dephosphorization agent crude product；It is by dipping dephosphorization agent crude product and concentration
109Cfu/mL Denitrifying Phosphate Accumulating Organisms bacteria suspension is 2 in mass ratio:It is sealed by fermentation 7 days after 1 mixing, it is 35 to control fermentation temperature
DEG C, tunning is taken out after fermentation ends, is packed after freeze-drying, produces a kind of biochemical composite dephosphorizing agent.
Example 2
It is 2 in mass ratio:1 will diatomite and flyash mix after is fitted into ball mill and grinds 25min, discharge and obtain mixed powder
End, taken out after being 0.5mol/L citric acid solutions immersion 1h with concentration by mixed-powder, immediately with liquid nitrogen spraying freezing processing
2min, freezing are put into baking oven after terminating, and 2h is dried at 108 DEG C, obtain pre-processing mixed-powder；By peach gum heat temperature raising 105
DEG C make its fusing, then the sodium peroxide powder of peach gum quality 50% is added into the peach gum after fusing, stir naturally extensive after 13min
Again to room temperature, peach gum is solidified again, obtain peach gum cladding sodium peroxide powder；It is 5 in mass ratio:1:4 by standby pre- place
Reason mixed-powder and building slag and water are mixed to get mixture, then the silicon of mixture quality 3~5% is added into mixture
Sour sodium powder end and the peach gum cladding sodium peroxide powder of mixture quality 6%, are heated to 95 DEG C, are stirred 2min, obtain
Mixed slurry；Mixed slurry is injected in stainless steel mould, stand foaming 11h, foaming obtains porous body after terminating, will be porous
Base substrate is moved into sintering furnace, is taken out after sintering 1h at 750 DEG C, is put into pulverizer after crushing 2h and is crossed 0.25mm aperture sieves, receives
Collection obtains the particle that sieves；By hydrodictyon reticulatum and water by etc. mass ratio mix after be put into grinding in mortar and obtain liver moss and starch, liver moss is starched
It is 2 in mass ratio with above-mentioned sieving particulate matter:Temperature is put into as 28 DEG C after 1 mixing, relative air humidity is in 75% greenhouse,
Naturally cultivate 18 days, until sieving particle surface moss-covered, produces dephosphorization agent crude product；It is with mass fraction by dephosphorization agent crude product
Taken out after 30% citric acid solution immersion 4h, then by the dephosphorization agent crude product after immersion be successively 1mol/L ferric chloride solutions with concentration
25min is soaked respectively with 0.5mol/L magnesium chloride solutions, obtains impregnating dephosphorization agent crude product；It is by dipping dephosphorization agent crude product and concentration
109Cfu/mL Denitrifying Phosphate Accumulating Organisms bacteria suspension is 2 in mass ratio:It is sealed by fermentation 9 days after 1 mixing, it is 40 to control fermentation temperature
DEG C, tunning is taken out after fermentation ends, is packed after freeze-drying, produces a kind of biochemical composite dephosphorizing agent.
Example 3
It is 2 in mass ratio:1 will diatomite and flyash mix after is fitted into ball mill and grinds 30min, discharge and obtain mixed powder
End, taken out after being 0.5mol/L citric acid solutions immersion 2h with concentration by mixed-powder, immediately with liquid nitrogen spraying freezing processing
2min, freezing are put into baking oven after terminating, and 2h is dried at 110 DEG C, obtain pre-processing mixed-powder；By peach gum heat temperature raising 110
DEG C make its fusing, then the sodium peroxide powder of peach gum quality 50% is added into the peach gum after fusing, stir naturally extensive after 15min
Again to room temperature, peach gum is solidified again, obtain peach gum cladding sodium peroxide powder；It is 5 in mass ratio:1:4 by standby pre- place
Reason mixed-powder and building slag and water are mixed to get mixture, then the sodium metasilicate of mixture quality 5% is added into mixture
The peach gum of powder and mixture quality 7% coats sodium peroxide powder, is heated to 100 DEG C, is stirred 2min, is mixed
Close slurry；Mixed slurry is injected in stainless steel mould, stand foaming 12h, foaming obtains porous body after terminating, by porous base
Body is moved into sintering furnace, is taken out after sintering 2h at 800 DEG C, is put into pulverizer after crushing 2h and is crossed 0.35mm aperture sieves, collects
Obtain the particle that sieves；By hydrodictyon reticulatum and water by etc. mass ratio mix after be put into grinding in mortar and obtain liver moss and starch, by liver moss slurry and
Above-mentioned sieving particulate matter is 2 in mass ratio:Temperature is put into after 1 mixing as 30 DEG C, relative air humidity is in 80% greenhouse, certainly
So culture 20 days, until sieving particle surface moss-covered, produces dephosphorization agent crude product；It is with mass fraction by dephosphorization agent crude product
Taken out after 30% citric acid solution immersion 5h, then by the dephosphorization agent crude product after immersion be successively 1mol/L ferric chloride solutions with concentration
30min is soaked respectively with 0.5mol/L magnesium chloride solutions, obtains impregnating dephosphorization agent crude product；It is by dipping dephosphorization agent crude product and concentration
109Cfu/mL Denitrifying Phosphate Accumulating Organisms bacteria suspension is 2 in mass ratio:It is sealed by fermentation 10 days after 1 mixing, it is 45 to control fermentation temperature
DEG C, tunning is taken out after fermentation ends, is packed after freeze-drying, produces a kind of biochemical composite dephosphorizing agent.
Reference examples
Reference examples are used as to add biological phosphate-eliminating agent and chemical dephosphorization agent step by step
The phosphor-removing effect to dephosphorization agent of the present invention and the phosphor-removing effect of reference examples detect respectively；
Testing result is as shown in table 1：
Table 1
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| The dephosphorization time（My god） | 2 | 2 | 2 | 7 |
| Organic tp removal rate（%） | 95.3 | 95.6 | 96.0 | 80.7 |
| Inorganic tp removal rate（%） | 94.5 | 95.1 | 95.6 | 76.3 |
From detecting data, removal efficiency of the biochemical composite dephosphorizing agent produced by the present invention to organophosphor and Phos in upper table
It is all good and easy to operate, only need to once it add, it is short the time required to dephosphorization, have broad application prospects.
Claims (8)
1. a kind of preparation method of biochemical composite dephosphorizing agent, it is characterised in that specifically preparation process is：
（1）Ground after diatomite and flyash are mixed, discharging obtains mixed-powder, and mixed-powder is soaked with citric acid solution
After take out, immediately with liquid nitrogen spraying 1~2min of freezing processing, freezing is dried after terminating, and obtains pre-processing mixed-powder, standby；
（2）Peach gum heating is made into its fusing, then sodium peroxide powder is added into the peach gum after fusing, clear-cutting forestland is extremely after stirring
Room temperature, peach gum is solidified again, obtain peach gum cladding sodium peroxide powder；
（3）Standby pretreatment mixed-powder and building slag and water are mixed to get mixture, then added into mixture
Sodium metasilicate powder and peach gum cladding sodium peroxide powder, heat temperature raising, are stirred, obtain mixed slurry；
（4）Above-mentioned mixed slurry is injected in stainless steel mould, stand foaming, foaming obtains porous body after terminating, will be porous
Taken out after blank sintering, 0.15~0.35mm aperture sieves are crossed after crushing, collection obtains the particle that sieves；
（5）By hydrodictyon reticulatum and water by etc. mass ratio mix after be put into grinding in mortar and obtain liver moss and starch, by liver moss slurry and above-mentioned mistake
It is put into greenhouse after sieve particulate matter mixing, cultivates 15~20 days naturally, until sieving particle surface moss-covered, produces dephosphorization agent
Crude product；
（6）Taken out after above-mentioned dephosphorization agent crude product is soaked with citric acid solution, then the dephosphorization agent crude product after immersion is used into chlorine successively
Change ferrous solution and magnesium chloride solution soaks respectively, obtain impregnating dephosphorization agent crude product；
（7）It is sealed by fermentation after above-mentioned dipping dephosphorization agent crude product and Denitrifying Phosphate Accumulating Organisms bacteria suspension are mixed, is taken out after fermentation ends
Tunning, packed after freeze-drying, produce a kind of biochemical composite dephosphorizing agent.
A kind of 2. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（1）Middle institute
The diatomite and the mass ratio of flyash stated are 2:1, the concentration of citric acid solution is 0.5mol/L.
A kind of 3. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（2）Middle institute
The addition for the sodium peroxide powder stated is the 50% of peach gum quality.
A kind of 4. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（3）Middle institute
The pretreatment mixed-powder and the mass ratio of building slag and water stated are 5:1:4, the addition of sodium metasilicate powder is mixture
The 3~5% of quality, the addition of peach gum cladding sodium peroxide powder is the 5~7% of mixture quality, and the temperature of heat temperature raising is
90~100 DEG C, it is 1~2min to be stirred the time.
A kind of 5. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（4）Middle institute
The stand foaming time stated is 10~12h, and sintering temperature is 700~800 DEG C, and sintering time is 1~2h.
A kind of 6. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（5）Middle institute
The liver moss slurry and the mass ratio of sieving particulate matter stated are 2:1, the temperature in greenhouse is 25~30 DEG C, relative air humidity is 70~
80%。
A kind of 7. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（6）Middle institute
The mass fraction for the citric acid solution stated is 30%, and the concentration of ferric chloride solution is 1mol/L, and the concentration of magnesium chloride solution is
0.5mol/L。
A kind of 8. preparation method of biochemical composite dephosphorizing agent according to claim 1, it is characterised in that：Step（7）Middle institute
The dipping dephosphorization agent crude product and the mass ratio of Denitrifying Phosphate Accumulating Organisms bacteria suspension stated are 2:1, the concentration of Denitrifying Phosphate Accumulating Organisms bacteria suspension
For 109Cfu/mL, the temperature of sealing and fermenting is 35~45 DEG C, and the time of sealing and fermenting is 7~10 days.
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| CN110980962A (en) * | 2019-11-26 | 2020-04-10 | 浙江永续环境工程有限公司 | Phosphorus-accumulating microbial inoculum and sludge treatment technology using same |
| CN111235141A (en) * | 2018-11-29 | 2020-06-05 | 中国石油天然气集团有限公司 | Humic acid modified biomass power plant ash and preparation method and application thereof |
| CN111470659A (en) * | 2020-04-18 | 2020-07-31 | 浙江伊诺环保科技股份有限公司 | Phosphorus removing agent and use method thereof |
| CN111908619A (en) * | 2020-07-08 | 2020-11-10 | 陕西怡维欣环保科技有限公司 | Efficient biochemical combined composite phosphorus removal agent and preparation method thereof |
| CN111960549A (en) * | 2020-04-14 | 2020-11-20 | 南京清盾环保科技有限公司 | Medicament for removing phosphorus element in sewage and preparation method thereof |
| CN111960550A (en) * | 2020-04-14 | 2020-11-20 | 南京清盾环保科技有限公司 | Preparation method of preparation for inhibiting phosphorus element in water |
| CN114082401A (en) * | 2021-11-18 | 2022-02-25 | 广东中微环保生物科技有限公司 | Adsorptive phosphorus-removing bacterium particle, preparation method thereof and organophosphorus pesticide waste gas treatment method |
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| CN111908619A (en) * | 2020-07-08 | 2020-11-10 | 陕西怡维欣环保科技有限公司 | Efficient biochemical combined composite phosphorus removal agent and preparation method thereof |
| CN114082401A (en) * | 2021-11-18 | 2022-02-25 | 广东中微环保生物科技有限公司 | Adsorptive phosphorus-removing bacterium particle, preparation method thereof and organophosphorus pesticide waste gas treatment method |
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