CN106277640A - A kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage - Google Patents
A kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage Download PDFInfo
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- CN106277640A CN106277640A CN201610838566.0A CN201610838566A CN106277640A CN 106277640 A CN106277640 A CN 106277640A CN 201610838566 A CN201610838566 A CN 201610838566A CN 106277640 A CN106277640 A CN 106277640A
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Classifications
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0222—Compounds of Mn, Re
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Abstract
The invention discloses a kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage, the method uses adsorption treatment to combine with MBR technique and processes waste water, first it is that low-carbon-source sewage is injected in adsorption and sedimentation pond, dephosphorization adsorbent and zeolite adsorption is used to process, sewage after process is injected in MBR reactor, and adds dephosphorization adsorbent to it, and sewage is after absorption with biological treatment, then separated by membrane module, obtain pure water outlet.The method can effectively remove the pollutant in sewage, and effluent quality is good, is possible not only to suspended solid, the Organic substance effectively removing in sewage, antibacterial, virus can also be removed, eliminate follow-up sterilization process, and the method is to water body non-secondary pollution, low cost.
Description
Technical field:
The present invention relates to field of waste water treatment, be specifically related to a kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage.
Background technology:
China's water resource lacks, water resource occupancy volume per person only 2200m3, it is one of several countries of hydropenia,
600 big and medium-sized cities have more than the urban water shortage of half.Due to urbanization, industrialized development, mankind's water consumption drastically adds
Greatly, the pollution to water is but on the rise.Water pollution is mostly derived from the industrial wastewater of discharge beyond standards and unprocessed is directly entered
The city domestic sewage of water body.By the end of the year 2010, whole nation overwhelming majority freshwater lake and urban waters all occur in various degree
Eutrophication, it is low that current China faces reusing sewage rate, the situation that shortage of water resources and water pollute and deposits, and has had a strong impact on people
The life of the people and expanding economy.In " 12 " of the Chinese government plan, clearly propose Resources for construction economizing type, environment
Friendly society, strengthens environment protection, strengthens utilization and the improvement of water pollution of water resource.
Sewage recycling is the important channel solving water resources shortage.Owing to Sewage Pollution thing is less, water quality is more steady
Fixed, it is easy to collect, capital expenditure is than remote diversion economy, and therefore many countries are all laggard through suitably processing by sanitary sewage
Row reuse.In after the process of denitrogenation dephosphorizing in various degree, can be back to water for industrial use, recharge of groundwater, city green for water
Change, fire-fighting or supply lake etc., Treated sewage reusing is the important sources realizing sewage recycling, is the city master that improves water shortage status
Want approach.
Denitrification dephosphorization technique conventional during adsorption treatment, its applied widely, investment and operating cost is low, effect stability,
Comprehensive treatment capability is strong, but the adsorption treatment agent used during adsorption treatment is most important, according to adsorbent improper,
The most not only denitrogenation processing DeGrain, and easily water body is produced secondary pollution；Membrane bioreactor (MBR) is by membrance separation
A kind of water technology associated with technology and biodegradation technique, has that floor space is little, effluent quality is excellent, easy realization is controlled automatically
The advantages such as system, have been successfully applied to feedwater and have processed with stain disease, but fouling membrane is the key factor affecting its development.
Summary of the invention:
It is an object of the invention to provide a kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage, the method can effectively remove
Pollutant in sewage, effluent quality is good, is possible not only to suspended solid, the Organic substance effectively removing in sewage, it is also possible to go
Except antibacterial, virus, eliminate follow-up sterilization process, and the method is to water body non-secondary pollution, low cost.
For achieving the above object, the present invention is by the following technical solutions:
A kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage, the method uses absorption method to combine with MBR technique, specifically
Comprise the following steps:
(1) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 2-5h, its
In, dephosphorization adsorbent is made up of the active sludge carbon of the pyrolusite powder that mass percent is 0.5-6% and 94-99.5%；
(2) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, sewage is through absorption
After biological treatment, then separated by membrane module, obtain pure water outlet.
Preferred as technique scheme, in step (1) and step (2), the dosage of described dephosphorization adsorbent is
1.5-3g/L。
Preferred as technique scheme, in step (1), the preparation method of described dephosphorization adsorbent includes following step
Rapid:
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End；
B) in mixed-powder, composite activating agent, after stirring, ultrasonic 1-6h under 800-1500W power are added, then
Put and activate in an oven, calcination carbonization in tube furnace, last cooling water washing is to neutral, and drying and grinding crosses 200-300 mesh sieve,
Obtain dephosphorization adsorbent.
Preferred as technique scheme, in step b), described composite activating agent is by liquor zinci chloridi and dilute sulfuric acid
Solution composition, the two volume ratio is: (1-5): 1.
Preferred as technique scheme, the concentration of described liquor zinci chloridi is 2-5mol/L, the matter of dilution heat of sulfuric acid
Amount concentration is 20-45%.
Preferred as technique scheme, in step b), the quality-volume ratio of described mixed-powder and composite activating agent
For 1:(1-7).
Preferred as technique scheme, in step b), the temperature of described activation is 80-130 DEG C, and soak time is
24-70h。
Preferred as technique scheme, in step b), the temperature of described calcination is 500-700 DEG C, and carbonization time is
1.5-7h。
Preferred as technique scheme, in step (2), takes uninterrupted in the processing procedure in MBR reactor
Aeration mode, aeration rate is 25-50mL/min.
Preferred as technique scheme, in step (2), the film used in MBR reactor is polyethylene hollow fiber
Film, its effective filtration area is 0.05-0.85m2, average membrane pore size size is 0.1-0.5 μm.
The method have the advantages that
The present invention use mode that absorption method combines with MBR technique to process low-carbon-source sewage, and in adsorption treatment and
MBR technique all adds dephosphorization adsorbent, decreases the pollution to film of the pollutant in sewage, reduces precipitate and block up fenestra
Plug, has saved cost；And the film rejection height used, high to the clearance of pollutant；
The present invention uses pyrolusite powder and active sludge carbon compound composition dephosphorization adsorbent mutually, and pyrolusite powder itself has
There is good surface adsorption effect, redox and catalytic effect so that prepared dephosphorization adsorbent has good removing
Phosphorus effect；
The method can effectively remove the pollutant in sewage, and effluent quality is good, is possible not only to effectively remove in sewage
Suspended solid, Organic substance, it is also possible to remove antibacterial, virus, eliminate follow-up sterilization process, and the method to water body without two
Secondary pollution, low cost.
Detailed description of the invention:
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
Release the present invention, the present invention will not be constituted any restriction.
Embodiment 1
(1) preparation of dephosphorization adsorbent
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End, wherein, the consumption of pyrolusite powder accounts for the 0.5% of mixed-powder gross mass；
B) in mixed-powder, add composite activating agent, after stirring, ultrasonic 6h under 800W power, be then placed on baking oven
In activate 70h at 80 DEG C, calcination carbonization 7h at 500 DEG C in tube furnace, last cooling water washing to neutral, drying and grinding mistake
200-300 mesh sieve, obtains dephosphorization adsorbent, and wherein, composite activating agent is by the liquor zinci chloridi that molar concentration is 2mol/L and matter
Amount concentration is the dilution heat of sulfuric acid composition of 45%, and the two volume ratio is: 1:1；
(2) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 2h, its
In, the dosage of dephosphorization adsorbent is 1.5g/L；
(3) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, its dosage is
1.5g/L, sewage, after absorption with biological treatment, is then separated by membrane module, obtains pure water outlet, wherein, at MBR
Taking uninterrupted aeration mode in processing procedure in reactor, aeration rate is 25mL/min.
Embodiment 2
(1) preparation of dephosphorization adsorbent
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End, wherein, the consumption of pyrolusite powder accounts for the 6% of mixed-powder gross mass；
B) in mixed-powder, add composite activating agent, after stirring, ultrasonic 1h under 1500W power, be then placed on baking
Activating 24h, calcination carbonization 1.5h at 700 DEG C in tube furnace in case at 130 DEG C, last cooling water washing, to neutral, be dried and grind
Honed 200-300 mesh sieve, obtains dephosphorization adsorbent, and wherein, composite activating agent is to be the liquor zinci chloridi of 5mol/L by molar concentration
With the dilution heat of sulfuric acid composition that mass concentration is 45%, the two volume ratio is: 5:1；
(2) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 5h, its
In, the dosage of dephosphorization adsorbent is 3g/L；
(3) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, its dosage is
1.5g/L, sewage, after absorption with biological treatment, is then separated by membrane module, obtains pure water outlet, wherein, at MBR
Taking uninterrupted aeration mode in processing procedure in reactor, aeration rate is 50mL/min.
Embodiment 3
(1) preparation of dephosphorization adsorbent
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End, wherein, the consumption of pyrolusite powder accounts for the 1.5% of mixed-powder gross mass；
B) in mixed-powder, add composite activating agent, after stirring, ultrasonic 5h under 900W power, be then placed on baking oven
In activate 60h at 90 DEG C, calcination carbonization 3.5h at 550 DEG C in tube furnace, last cooling water washing to neutral, drying and grinding mistake
200-300 mesh sieve, obtains dephosphorization adsorbent, and wherein, composite activating agent is by the liquor zinci chloridi that molar concentration is 3mol/L and matter
Amount concentration is the dilution heat of sulfuric acid composition of 25%, and the two volume ratio is: 2:1；
(2) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 3h, its
In, the dosage of dephosphorization adsorbent is 2.75g/L；
(3) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, its dosage is 2g/
L, sewage, after absorption with biological treatment, is then separated by membrane module, obtains pure water outlet, wherein, at MBR reactor
In processing procedure in take uninterrupted aeration mode, aeration rate is 30mL/min.
Embodiment 4
(1) preparation of dephosphorization adsorbent
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End, wherein, the consumption of pyrolusite powder accounts for the 2.5% of mixed-powder gross mass；
B) in mixed-powder, add composite activating agent, after stirring, ultrasonic 4h under 1000W power, be then placed on baking
Activating 50h, calcination carbonization 2.5h at 600 DEG C in tube furnace in case at 100 DEG C, last cooling water washing, to neutral, be dried and grind
Honed 200-300 mesh sieve, obtains dephosphorization adsorbent, and wherein, composite activating agent is to be the liquor zinci chloridi of 3mol/L by molar concentration
With the dilution heat of sulfuric acid composition that mass concentration is 35%, the two volume ratio is: 3:1；
(2) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 3.5h, its
In, the dosage of dephosphorization adsorbent is 2g/L；
(3) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, its dosage is 2g/
L, sewage, after absorption with biological treatment, is then separated by membrane module, obtains pure water outlet, wherein, at MBR reactor
In processing procedure in take uninterrupted aeration mode, aeration rate is 35mL/min.
Embodiment 5
(1) preparation of dephosphorization adsorbent
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End, wherein, the consumption of pyrolusite powder accounts for the 3.5% of mixed-powder gross mass；
B) in mixed-powder, add composite activating agent, after stirring, ultrasonic 3h under 1200W power, be then placed on baking
Activating 42h, calcination carbonization 3h at 600 DEG C in tube furnace in case at 110 DEG C, last cooling water washing is to neutrality, drying and grinding
Cross 200-300 mesh sieve, obtain dephosphorization adsorbent, wherein, composite activating agent be by the liquor zinci chloridi that molar concentration is 4mol/L and
Mass concentration is the dilution heat of sulfuric acid composition of 40%, and the two volume ratio is: 3:1；
(2) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 3.5h, its
In, the dosage of dephosphorization adsorbent is 1.8g/L；
(3) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, its dosage is
2.5g/L, sewage, after absorption with biological treatment, is then separated by membrane module, obtains pure water outlet, wherein, at MBR
Taking uninterrupted aeration mode in processing procedure in reactor, aeration rate is 40mL/min.
Embodiment 6
(1) preparation of dephosphorization adsorbent
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed powder
End, wherein, the consumption of pyrolusite powder accounts for the 4.5% of mixed-powder gross mass；
B) in mixed-powder, add composite activating agent, after stirring, ultrasonic 2h under 1400W power, be then placed on baking
Activating 30h, calcination carbonization 3.5h at 650 DEG C in tube furnace in case at 120 DEG C, last cooling water washing, to neutral, be dried and grind
Honed 200-300 mesh sieve, obtains dephosphorization adsorbent, and wherein, composite activating agent is molten by the zinc chloride that molar concentration is 4.5mol/L
Liquid and the dilution heat of sulfuric acid composition that mass concentration is 35%, the two volume ratio is: 4:1；
(2) low-carbon-source sewage is injected in adsorption and sedimentation pond, uses dephosphorization adsorbent and zeolite adsorption to process 3.3h, its
In, the dosage of dephosphorization adsorbent is 2.8g/L；
(3) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, its dosage is 2g/
L, sewage, after absorption with biological treatment, is then separated by membrane module, obtains pure water outlet, wherein, at MBR reactor
In processing procedure in take uninterrupted aeration mode, aeration rate is 45mL/min.
Claims (10)
1. a low-temperature denitrification phosphorous removal method for low-carbon-source sewage, the method uses absorption method to combine with MBR technique, its feature
It is, specifically includes following steps:
(1) low-carbon-source sewage is injected in adsorption and sedimentation pond, employing dephosphorization adsorbent and zeolite adsorption process 2-5h, wherein,
Dephosphorization adsorbent is made up of the active sludge carbon of the pyrolusite powder that mass percent is 0.5-6% and 94-99.5%；
(2) being injected in MBR reactor by the sewage after adsorption treatment, and add dephosphorization adsorbent, sewage is through absorption and life
After thing processes, then separated by membrane module, obtain pure water outlet.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 1, it is characterised in that: step (1) and
In step (2), the dosage of described dephosphorization adsorbent is 1.5-3g/L.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 1, it is characterised in that in step (1),
The preparation method of described dephosphorization adsorbent comprises the following steps:
A) drying sludge is pulverized into sewage sludge powder, pyrolusite powder is mixed homogeneously with sewage sludge powder, obtains mixed-powder；
B) adding composite activating agent in mixed-powder, after stirring, under 800-1500W power, ultrasonic 1-6h, is then placed on
Activating in baking oven, calcination carbonization in tube furnace, last cooling water washing is to neutral, and drying and grinding is crossed 200-300 mesh sieve, must be removed
Phosphorus adsorbent.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 3, it is characterised in that: in step b),
Described composite activating agent is made up of liquor zinci chloridi and dilution heat of sulfuric acid, and the two volume ratio is: (1-5): 1.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 4, it is characterised in that: described zinc chloride
The concentration of solution is 2-5mol/L, and the mass concentration of dilution heat of sulfuric acid is 20-45%.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 3, it is characterised in that: in step b),
Described mixed-powder is 1:(1-7 with the quality-volume ratio of composite activating agent).
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 3, it is characterised in that: in step b),
The temperature of described activation is 80-130 DEG C, and soak time is 24-70h.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 3, it is characterised in that: in step b),
The temperature of described calcination is 500-700 DEG C, and carbonization time is 1.5-7h.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 1, it is characterised in that: in step (2),
Taking uninterrupted aeration mode in processing procedure in MBR reactor, aeration rate is 25-50mL/min.
The low-temperature denitrification phosphorous removal method of a kind of low-carbon-source sewage the most as claimed in claim 1, it is characterised in that: step (2)
In, the film used in MBR reactor is polyethylene hollow fiber membrane, and its effective filtration area is 0.05-0.85m2, average fenestra
Footpath size is 0.1-0.5 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610838566.0A CN106277640A (en) | 2016-09-21 | 2016-09-21 | A kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610838566.0A CN106277640A (en) | 2016-09-21 | 2016-09-21 | A kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage |
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| CN106277640A true CN106277640A (en) | 2017-01-04 |
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| CN201610838566.0A Withdrawn CN106277640A (en) | 2016-09-21 | 2016-09-21 | A kind of low-temperature denitrification phosphorous removal method of low-carbon-source sewage |
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Cited By (3)
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| CN113913482A (en) * | 2021-11-15 | 2022-01-11 | 中冶生态环保集团有限公司 | Plant-based solid-liquid mixed carbon source and preparation method thereof |
| CN115518617A (en) * | 2022-10-24 | 2022-12-27 | 沈阳理工大学 | Preparation method of low C/N sewage dephosphorization and denitrification material |
| CN113913482B (en) * | 2021-11-15 | 2024-04-19 | 中冶生态环保集团有限公司 | Plant-based solid-liquid mixed carbon source and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113913482A (en) * | 2021-11-15 | 2022-01-11 | 中冶生态环保集团有限公司 | Plant-based solid-liquid mixed carbon source and preparation method thereof |
| CN113913482B (en) * | 2021-11-15 | 2024-04-19 | 中冶生态环保集团有限公司 | Plant-based solid-liquid mixed carbon source and preparation method thereof |
| CN115518617A (en) * | 2022-10-24 | 2022-12-27 | 沈阳理工大学 | Preparation method of low C/N sewage dephosphorization and denitrification material |
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Application publication date: 20170104 |