CN108328735A - A kind of method of ammonia nitrogen in removal Wastewater from Pig Farm - Google Patents
A kind of method of ammonia nitrogen in removal Wastewater from Pig Farm Download PDFInfo
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- CN108328735A CN108328735A CN201810233119.1A CN201810233119A CN108328735A CN 108328735 A CN108328735 A CN 108328735A CN 201810233119 A CN201810233119 A CN 201810233119A CN 108328735 A CN108328735 A CN 108328735A
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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
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of methods of the ammonia nitrogen in removal Wastewater from Pig Farm, stage, nitrification establishment stage and water improvement stage are accompanied including biochemistry expansion, shorten the domestication time of microorganism fungus kind, ensure that being discharged ammonia nitrogen value can reach level-one A standards, stable water outlet, and can apply at the scene, it is easy to operate, solve the problems, such as that Wastewater from Pig Farm ammonia nitrogen is intractable.
Description
Technical field
The present invention relates to a kind of methods of the ammonia nitrogen in microorganisms technical field more particularly to removal Wastewater from Pig Farm.
Background technology
It modernizes case type large scale of pig farm technology and promotes China city pig breeding industry to high-quality and efficient development, improve
Breeding technology, pest resistance and management level, reduce production cost, increase economic benefit.But then, scale
Pig farm also results in the substantial increase of piggery wastewater, according to calculating, a year amount of delivering for sale be 1000 scale pig farm year row 40
×104T fecalurias, this is equivalent to annual discharge nitrogen 2400t to corresponding year Pai Chong column waste water, and so big wastewater discharge gives life
State environment brings enormous pressure.
The pollution of Water element can also cause the adverse effect of ecology and health aspect, and ammonia is to water when most directly influencing
The murder by poisoning of biology.Ammonia ion (NH in water4 +) and molecule (NH3) form presence, cause the mainly NH of toxic action3。
For most of fish, the NH in water body3Lethal dose be 1mg/L.
The denitrogenation of waste water mainly include two processes of nitrification and denitrification, wherein participate in nitrification bacterium, be it is typical from
Type microorganism is supported, the generation cycle is long, slow-growing, more sensitive to environmental change, so the adaptability of nitrobacteria and resistance to
By poor.
101899401 B of Chinese patent CN describe microbial agent for treating ammonia-containing waste water and its production method.The patent
3 kinds of bacterial strains such as nitrifier, nitrococcus and denitrifying bacterium are tamed by orientation.It is useless to obtain can effectively deal with low strength COD, high ammonia
The composite bacteria agent of water.But the patent microbial inoculum is not described the commercial Application of processing high concentration COD, high ammonia-nitrogen wastewater.
102443558 B of Chinese patent CN describe application of the compound heterotrophic nitrification microbial inoculum in high-concentration ammonia nitrogenous wastewater.
But patent acclimation conditions control is stringent, and industrially large-scale application has certain difficulty.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of method removing the ammonia nitrogen in Wastewater from Pig Farm, contracting
The short domestication time, it is ensured that water outlet ammonia nitrogen value can reach level-one A standards, stable water outlet, and can apply at the scene, easy to operate, solution
The certainly intractable problem of Wastewater from Pig Farm ammonia nitrogen.
In order to solve the above technical problem, the present invention provides it is a kind of removal Wastewater from Pig Farm in ammonia nitrogen method,
It is characterized in that, including：
(1), Blastocystis, Micrococcus, nitrosomonas, bacillus are weighed, is added in reaction bulb, uses tap water
It after diluting activation strain with Wastewater from Pig Farm, uniformly spills in anoxic pond, there is polyurethane nano filler and pig raising in anoxic pond
Field waste water；
It weighs nitrifier to be added in reaction bulb, after tap water and Wastewater from Pig Farm dilution activation strain, uniformly spill in good
In oxygen pond, there is polyurethane nano filler and Wastewater from Pig Farm in aerobic tank；
(2), anoxic pond is stirred so that the concentration of ammonia nitrogen is in preset range in anoxic pond, and makes in aerobic tank
The concentration of ammonia nitrogen is in preset range；
(3), anoxic pond is connected to aerobic tank, and Wastewater from Pig Farm is added in anoxic pond, wherein in anoxic pond
Waste water unidirectionally enters in aerobic tank, when the ammonia nitrogen concentration in aerobic tank is less than preset range, continues to add Wastewater from Pig Farm
Enter into anoxic pond, and by aerobic tank water reflux be added in anoxic pond, finally pass through aerobic tank processing clean water from
Aerobic tank is discharged.
As the improvement of said program, the ratio of tap water and Wastewater from Pig Farm for diluting activation strain is 1:2-1:
8, activation strain 4-8 hours.
As the improvement of said program, 0.02-0.2L polyurethane nano fillers are added in every liter of Wastewater from Pig Farm.
As the improvement of said program, the specific surface area of the polyurethane nano filler is 30000-50000m2/m3, hole
Degree is 75-90%, water imbibition 50-200%.
As the improvement of said program, the aerobic tank and anoxic pond are before being added strain by anoxic pond and aerobic tank
PH is adjusted to 7.0-8.0.
As the improvement of said program, each 0.1- of Blastocystis, Micrococcus, nitrosomonas, bacillus is weighed
1g is added in reaction bulb.
As the improvement of said program, weighs 0.1-1g nitrifiers and be added in reaction bulb.
As the improvement of said program, anoxic pond is stirred, mixing speed 80-250rpm, and by anoxic pond
Temperature control is at 25-30 DEG C, and pH controls are controlled in 7.5-8.5, DO in≤0.5mg/L so that the concentration of ammonia nitrogen exists in anoxic pond
Preset range；By the temperature control of aerobic tank at 25-30 DEG C, pH controls are controlled in 7.5-8.5, DO in 2-4mg/L so that aerobic
The concentration of ammonia nitrogen is in preset range in pond；
As the improvement of said program, when the ammonia nitrogen concentration in aerobic tank is less than 4-8mg/L, will be raised pigs by peristaltic pump
Waste water is added in anoxic pond, and for flow control in 0.5L/h, flow control, while will be aerobic by peristaltic pump in 0.5-5L/d
The water reflux in pond is added in anoxic pond, and flow control is in 0.5L/h, and flow control is in 0.5-5L/d.
As the improvement of said program, the water for being stepped up Wastewater from Pig Farm and aerobic tank is added to the flow of anoxic pond,
Flow is followed successively by 0.5L/d, 1L/d, 1.5L/d, 2.5L/d, 5L/d.
Implement the present invention, has the advantages that：
The present invention is accompanied stage, nitrification establishment stage and water improvement stage by biochemistry expansion, shortens microorganism fungus kind
The domestication time, it is ensured that water outlet ammonia nitrogen value can reach level-one A standards, stable water outlet, and can apply at the scene, easy to operate, solution
The certainly intractable problem of Wastewater from Pig Farm ammonia nitrogen.
Description of the drawings
Fig. 1 is the broken line that the ammonia nitrogen of aerobic tank in the present invention changes over time under different polyurethane nano amount of filler
Figure；
Fig. 2 is that the ammonia nitrogen of aerobic tank, pH change over time curve graph in the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
The method of ammonia nitrogen in a kind of removal Wastewater from Pig Farm disclosed by the invention, which is characterized in that including：
One, biochemical expand accompanies the stage
Blastocystis, Micrococcus, nitrosomonas, bacillus are weighed, is added in reaction bulb, with tap water and is supported
After piggery wastewater dilution activation strain, uniformly spills in anoxic pond, have polyurethane nano filler and pig farm useless in anoxic pond
Water；
It weighs nitrifier to be added in reaction bulb, after tap water and Wastewater from Pig Farm dilution activation strain, uniformly spill in good
In oxygen pond, there is polyurethane nano filler and Wastewater from Pig Farm in aerobic tank.
Preferably, the ratio of the tap water and Wastewater from Pig Farm that are used to dilute activation strain is 1:2-1:8, activation strain 4-
8 hours.
More preferably, the ratio of the tap water and Wastewater from Pig Farm that are used to dilute activation strain is 1:4, activation strain 6 hours.
Specifically, biochemical expand accompanies the stage to include the following steps：
(1), Blastocystis, Micrococcus, nitrosomonas, bacillus are weighed, is added in reaction bulb, uses 50-
After 200ml tap water and the dilution of 200-800ml Wastewater from Pig Farm activate strain 4-8h, uniformly spill in anoxic pond, in anoxic pond
With polyurethane nano filler and Wastewater from Pig Farm.
Preferably, Blastocystis, Micrococcus, nitrosomonas, bacillus are weighed, is added in reaction bulb, is used
After 100ml tap water and the dilution of 400ml Wastewater from Pig Farm activate strain 4-8h, uniformly spills in anoxic pond, have in anoxic pond
Polyurethane nano filler and Wastewater from Pig Farm.More preferably, Blastocystis, Micrococcus, nitrosomonas, gemma bar are weighed
Bacterium is added in reaction bulb, after 100ml tap water and 400ml Wastewater from Pig Farm dilution activation strain 6h, uniformly spills in anoxic pond
In, there is polyurethane nano filler and Wastewater from Pig Farm in anoxic pond.
(2), it weighs nitrifier to be added in reaction bulb, be diluted with 50-200ml tap water and 200-800ml Wastewater from Pig Farm
It after activating strain 4-8h, uniformly spills in aerobic tank, there is polyurethane nano filler and Wastewater from Pig Farm in aerobic tank.
Preferably, it weighs nitrifier to be added in reaction bulb, with 100ml tap water and the dilution activation of 400ml Wastewater from Pig Farm
It after strain 4-8h, uniformly spills in aerobic tank, there is polyurethane nano filler and Wastewater from Pig Farm in aerobic tank.
More preferably, it weighs nitrifier to be added in reaction bulb, with 100ml tap water and the dilution activation of 400ml Wastewater from Pig Farm
It after strain 6h, uniformly spills in aerobic tank, there is polyurethane nano filler and Wastewater from Pig Farm in aerobic tank.
It should be noted that the sequence of step (1) and step (2) can be interchanged.Before activating strain, need first to prepare
Aerobic tank and anoxic pond.Specifically, taking two 5L glass jars, number is aerobic tank and anoxic pond, is injected separately into the pig farms 4.5L
The pH of aerobic tank and anoxic pond is adjusted to 7.0-8.0 by waste water using sodium bicarbonate or dilute sulfuric acid, and to aerobic tank and anoxic pond
Middle addition polyurethane nano filler.Preferably, the pH of aerobic tank and anoxic pond is adjusted to 7.5.Wherein, every liter of Wastewater from Pig Farm
0.02-0.2L polyurethane nano fillers are added.Referring to table 1, the specific surface area of the polyurethane nano filler is 30000-
50000m2/m3, porosity 75-90%, water imbibition 50-200%.
1 polyurethane nano filler index parameter of table
Preferably, each 0.1-1g of Blastocystis, Micrococcus, nitrosomonas, bacillus is weighed, reaction bulb is added
In, after 100ml tap water and 400ml Wastewater from Pig Farm dilution activation strain 6h, uniformly spills in anoxic pond, open stirring dress
It sets.
Preferably, it weighs each 0.1-0.5g of Blastocystis, Micrococcus, nitrosomonas, bacillus and reaction is added
In bottle, after 100ml tap water and 400ml Wastewater from Pig Farm dilution activation strain 6h, uniformly spills in anoxic pond, open stirring
Device.
More preferably, each 0.1g of Blastocystis, Micrococcus, nitrosomonas, bacillus is weighed to be added in reaction bulb,
After 100ml tap water and 400ml Wastewater from Pig Farm dilution activation strain 6h, uniformly spills in anoxic pond, open agitating device.
Preferably, 0.1-1g nitrifiers are weighed to be added in reaction bulb, it is dilute with 100ml tap water and 400ml Wastewater from Pig Farm
It after releasing activation strain 6h, uniformly spills in aerobic tank, opens aerator.
Preferably, it weighs 0.2-0.7g nitrifiers to be added in reaction bulb, with 100ml tap water and 400ml Wastewater from Pig Farm
After dilution activation strain 6h, uniformly spills in aerobic tank, open aerator.
More, 0.4g nitrifiers are weighed to be added in reaction bulb, are diluted with 100ml tap water and 400ml Wastewater from Pig Farm
It after activating strain 6h, uniformly spills in aerobic tank, opens aerator.
Biochemical expand of the present invention accompanies characteristic of the stage mainly by using microorganism to environmental suitability progressive formation, gradually
Waste strength is improved, the death rate caused by environment factor is microorganism is reduced, to improve the activity of excitation microorganism.
Two, nitrification establishment stage
1, anoxic pond is stirred, mixing speed 80-250rpm, and the temperature of anoxic pond is controlled at 25-30 DEG C,
PH controls are controlled in 7.5-8.5, DO in≤0.5mg/L so that the concentration of ammonia nitrogen is in preset range in anoxic pond.Specifically, making
The concentration of ammonia nitrogen in anoxic pond is obtained close to the concentration of total nitrogen, and the concentration of ammonia nitrogen stops increasing, at this point, the system of anoxic pond is in
Stable state.Preferably, it is total nitrogen total amount that the preset range of ammonia nitrogen concentration, which refers to the total amount of ammonia in anoxic pond, in anoxic pond
80-100%.More preferably, it is total nitrogen total amount that the preset range of ammonia nitrogen concentration, which refers to the total amount of ammonia in anoxic pond, in anoxic pond
90-100%.
In the present invention, the main function of anoxic pond is that Wastewater from Pig Farm is made to carry out ammoniation and denitrification, i.e.,
By the nitrogen-containing organic compound ammonification in Wastewater from Pig Farm it is ammonia nitrogen using microorganism decomposition ability, wherein ammonia nitrogen and total nitrogen number
It is worth closer, ammonification effect is better.
2, the temperature of aerobic tank is controlled at 25-30 DEG C, pH controls are controlled in 7.5-8.5, DO in 2-4mg/L so that good
The concentration of ammonia nitrogen is in preset range in oxygen pond.Specifically, so that ammonia nitrogen degradation is to minimum point in aerobic tank, and pH value stops becoming
Change, at this point, the nitrification in aerobic tank is in stable state.Preferably, the concentration of ammonia nitrogen is in preset range in aerobic tank
Refer to a concentration of 5.4mg/L of ammonia nitrogen in aerobic tank.
In the present invention, the effect of aerobic tank be using nitrobacteria by the mineralized nitrogen in Wastewater from Pig Farm be nitre state
Nitrogen.Wherein, mineralized nitrogen is the process that the process of nitrate nitrogen is a production acid, can be changed by the pH detected in aerobic tank to sentence
The conversion situation of ammonia nitrogen in disconnected aerobic tank.
Three, the water improvement stage
1, pipeline connects, and anoxic pond is connected to aerobic tank, wherein the waste water in anoxic pond unidirectionally enters aerobic tank
In.Specifically, being connected to the lower end of anoxic pond with the upper end of aerobic tank by water pipe, and pig farm is given up by elevator pump
Water is added in anoxic pond so that and the waste water in anoxic pond enters the top of aerobic tank by way of overflow from bottom, and
The clean water handled by aerobic tank is discharged by way of overflow.
It should be noted that the specification of elevator pump is 0-5L/h.Preferably, using the hose of DN5mm by aerobic tank and
Anoxic pond is connected to.
2, flow is promoted, and when the ammonia nitrogen concentration in aerobic tank is less than preset range, continues Wastewater from Pig Farm being added to
In anoxic pond, and the water reflux in aerobic tank is added in anoxic pond, finally passes through the clean water of aerobic tank processing from aerobic
Pond is discharged.Preferably, when the ammonia nitrogen concentration in aerobic tank is less than 4-10mg/L, continue Wastewater from Pig Farm being added to anoxic pond
In, and the water reflux in aerobic tank is added in anoxic pond, the clean water for finally passing through aerobic tank processing is discharged from aerobic tank.
More, when the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, continue Wastewater from Pig Farm being added in anoxic pond, and will get well
Water reflux in oxygen pond is added in anoxic pond, and the clean water for finally passing through aerobic tank processing is discharged from aerobic tank.
Specifically, Wastewater from Pig Farm reflux is added in anoxic pond by peristaltic pump, flow control is in 0.5L/h, flow
Control is in 0.5-5L/d so that the waste water in anoxic pond enters the top of aerobic tank by way of overflow from bottom；Pass through
The water reflux of aerobic tank is added in anoxic pond by peristaltic pump, and in 0.5L/h, flow control passes through flow control in 0.5-5L/d
The clean water for crossing aerobic tank processing is discharged by way of overflow.
It should be noted that the water for being stepped up Wastewater from Pig Farm and aerobic tank is needed to be added to the flow of anoxic pond, flow
Amount is followed successively by 0.5L/d, 1L/d, 1.5L/d, 2.5L/d, 5L/d.
Preferably, when the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the removal rate of ammonia nitrogen reaches 97.4% at this time, leads to
It crosses peristaltic pump the water of aerobic tank is added in anoxic pond, flow control is in 0.5L/h, and flow control is in 0.5L/d, and by compacted
Wastewater from Pig Farm reflux is added in anoxic pond by dynamic pump, and flow control is in 0.5L/h, and flow control is in 0.5L/d, at this point, water
Sharp Load lifting is 10%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 1L/d, at this point, water conservancy Load lifting is 20%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 1.5L/d, at this point, water conservancy Load lifting is 30%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 2.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 2.5L/d, at this point, water conservancy Load lifting is 50%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 5L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 5L/d, at this point, water conservancy Load lifting is 100%, and passes through the cleaning of aerobic tank processing
Water is discharged by way of overflow.
By the way of water promotion, the purpose is to be the stable microflora of culture, by the nitrification liquid in aerobic tank
It flows back into anoxic pond, the purpose is to the anaerobic ammonium oxidizing bacterias for culture oxygen depletion system.
In the present invention, it is handled by the water improvement stage to be stepped up the animal farm wastewater of anoxic pond and aerobic tank
Amount so that bacterium of the invention gradually adapts to the Wastewater from Pig Farm of high concentration COD, high ammonia nitrogen, to strengthen the steady of nitrification
It is qualitative, it is ensured that the ammonia nitrogen concentration of clean water is within the scope of 4-8mg/L.In addition, verifying high concentration Asia by the water improvement stage
Nitrate does not generate inhibiting effect to the ammoniation of bacterium in the present invention.
With specific embodiment, the present invention is further explained below
Embodiment 1
(1), each 0.1g of Blastocystis, Micrococcus, nitrosomonas, bacillus is weighed, is added in reaction bulb, is used
After 100ml tap water and the dilution of 400ml Wastewater from Pig Farm activate strain 6h, uniformly spill in the anoxic pond that capacity is 5L, wherein
The Wastewater from Pig Farm of the polyurethane nano filler and 4.5L of 0.1L is added in anoxic pond；
(2), it weighs 0.4g nitrifiers to be added in reaction bulb, with 100ml tap water and the dilution activation of 400ml Wastewater from Pig Farm
After strain 6h, uniformly spill in capacity be 5L anoxic pond in, wherein in aerobic tank be added 0.5L polyurethane nano filler and
The Wastewater from Pig Farm of 4.5L；
(3), anoxic pond is stirred, mixing speed 80-250rpm, and the temperature of anoxic pond is controlled in 25-30
DEG C, pH controls are controlled in 7.5-8.5, DO in≤0.5mg/L so that the concentration of ammonia nitrogen is less than or equal to the dense of total nitrogen in anoxic pond
Degree；
(4), the temperature of aerobic tank is controlled at 25-30 DEG C, pH controls are controlled in 7.5-8.5, DO in 2-4mg/L so that
A concentration of 5.4mg/L of ammonia nitrogen in aerobic tank；
(5), anoxic pond is connected to aerobic tank, Wastewater from Pig Farm is added in anoxic pond using elevator pump, wherein lacked
Waste water in oxygen pond unidirectionally enters in aerobic tank；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the removal rate of ammonia nitrogen reaches 97.4% at this time, passes through peristaltic pump
The water of aerobic tank is added in anoxic pond, flow control in 0.5L/h, in 0.5L/d, and by peristaltic pump rest by flow control
Piggery wastewater reflux is added in anoxic pond, and flow control is in 0.5L/h, and flow control is in 0.5L/d, at this point, water conservancy load carries
It is upgraded to 10%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 1L/d, at this point, water conservancy Load lifting is 20%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 1.5L/d, at this point, water conservancy Load lifting is 30%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 2.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 2.5L/d, at this point, water conservancy Load lifting is 50%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 5L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 5L/d, at this point, water conservancy Load lifting is 100%, and passes through the cleaning of aerobic tank processing
Water is discharged by way of overflow.
Embodiment 2
(1), each 0.1g of Blastocystis, Micrococcus, nitrosomonas, bacillus is weighed, is added in reaction bulb, is used
After 100ml tap water and the dilution of 400ml Wastewater from Pig Farm activate strain 6h, uniformly spill in the anoxic pond that capacity is 5L, wherein
The Wastewater from Pig Farm of the polyurethane nano filler and 4.5L of 0.5L is added in anoxic pond；
(2), it weighs 0.4g nitrifiers to be added in reaction bulb, with 100ml tap water and the dilution activation of 400ml Wastewater from Pig Farm
After strain 6h, uniformly spill in capacity be 5L anoxic pond in, wherein in aerobic tank be added 0.5L polyurethane nano filler and
The Wastewater from Pig Farm of 4.5L；
(3), anoxic pond is stirred, mixing speed 80-250rpm, and the temperature of anoxic pond is controlled in 25-30
DEG C, pH controls are controlled in 7.5-8.5, DO in≤0.5mg/L so that the concentration of ammonia nitrogen is less than or equal to the dense of total nitrogen in anoxic pond
Degree；
(4), the temperature of aerobic tank is controlled at 25-30 DEG C, pH controls are controlled in 7.5-8.5, DO in 2-4mg/L so that
A concentration of 5.4mg/L of ammonia nitrogen in aerobic tank；
(5), anoxic pond is connected to aerobic tank, Wastewater from Pig Farm is added in anoxic pond using elevator pump, wherein lacked
Waste water in oxygen pond unidirectionally enters in aerobic tank；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the removal rate of ammonia nitrogen reaches 97.4% at this time, passes through peristaltic pump
The water of aerobic tank is added in anoxic pond, flow control in 0.5L/h, in 0.5L/d, and by peristaltic pump rest by flow control
Piggery wastewater reflux is added in anoxic pond, and flow control is in 0.5L/h, and flow control is in 0.5L/d, at this point, water conservancy load carries
It is upgraded to 10%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 1L/d, at this point, water conservancy Load lifting is 20%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 1.5L/d, at this point, water conservancy Load lifting is 30%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 2.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 2.5L/d, at this point, water conservancy Load lifting is 50%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 5L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 5L/d, at this point, water conservancy Load lifting is 100%, and passes through the cleaning of aerobic tank processing
Water is discharged by way of overflow.
Embodiment 3
(1), each 0.1g of Blastocystis, Micrococcus, nitrosomonas, bacillus is weighed, is added in reaction bulb, is used
After 100ml tap water and the dilution of 400ml Wastewater from Pig Farm activate strain 6h, uniformly spill in the anoxic pond that capacity is 5L, wherein
The Wastewater from Pig Farm of the polyurethane nano filler and 4.5L of 1L is added in anoxic pond；
(2), it weighs 0.4g nitrifiers to be added in reaction bulb, with 100ml tap water and the dilution activation of 400ml Wastewater from Pig Farm
After strain 6h, uniformly spill in capacity be 5L anoxic pond in, wherein in aerobic tank be added 0.5L polyurethane nano filler and
The Wastewater from Pig Farm of 4.5L；
(3), anoxic pond is stirred, mixing speed 80-250rpm, and the temperature of anoxic pond is controlled in 25-30
DEG C, pH controls are controlled in 7.5-8.5, DO in≤0.5mg/L so that the concentration of ammonia nitrogen is less than or equal to the dense of total nitrogen in anoxic pond
Degree；
(4), the temperature of aerobic tank is controlled at 25-30 DEG C, pH controls are controlled in 7.5-8.5, DO in 2-4mg/L so that
A concentration of 5.4mg/L of ammonia nitrogen in aerobic tank；
(5), anoxic pond is connected to aerobic tank, Wastewater from Pig Farm is added in anoxic pond using elevator pump, wherein lacked
Waste water in oxygen pond unidirectionally enters in aerobic tank；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the removal rate of ammonia nitrogen reaches 97.4% at this time, passes through peristaltic pump
The water of aerobic tank is added in anoxic pond, flow control in 0.5L/h, in 0.5L/d, and by peristaltic pump rest by flow control
Piggery wastewater reflux is added in anoxic pond, and flow control is in 0.5L/h, and flow control is in 0.5L/d, at this point, water conservancy load carries
It is upgraded to 10%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 1L/d, at this point, water conservancy Load lifting is 20%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 1.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 1.5L/d, at this point, water conservancy Load lifting is 30%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 2.5L/d, and by peristaltic pump,
Flow control is in 0.5L/h, and flow control is in 2.5L/d, at this point, water conservancy Load lifting is 50%；
When the ammonia nitrogen concentration in aerobic tank is less than 8mg/L, the water of aerobic tank is added in anoxic pond by peristaltic pump,
In 0.5L/h, Wastewater from Pig Farm reflux is added in anoxic pond flow control by flow control in 5L/d, and by peristaltic pump, is flowed
Speed control is in 0.5L/h, and flow control is in 5L/d, at this point, water conservancy Load lifting is 100%, and passes through the cleaning of aerobic tank processing
Water is discharged by way of overflow.
Ammonia nitrogen in the aerobic tank of embodiment 1-3 is detected, as a result as depicted in figs. 1 and 2.
Fig. 1 is the broken line that the ammonia nitrogen of aerobic tank in the present invention changes over time under different polyurethane nano amount of filler
Figure.Ordinate is the ammonia nitrogen concentration in aerobic tank, unit mg/L in figure.The domestication process of nitrobacteria in aerobic tank is divided into
Three phases, respectively biochemical expand accompany stage, nitrification establishment stage and water improvement stage.As shown in Figure 1, three kinds of poly- ammonia
Under ester Nano filling dosage, there is downward trend from second day in the ammonia nitrogen concentration in aerobic tank, was filled out in three kinds of polyurethane nanos
Expect in dosage, the ammonia nitrogen degradation efficiency of the aerobic tank of the dosage of 0.5L and the dosage of 1L is higher；Compared to the dosage of 0.5L and 1L,
The ammonia nitrogen degradation rate of the aerobic tank of the dosage of 0.1L is poor, and in the water improvement stage, degradation efficiency is unstable, fluctuation compared with
Greatly.
Fig. 2 is that the ammonia nitrogen of aerobic tank, pH change over time curve graph in the present invention.Ordinate (left side) is in aerobic tank in figure
Ammonia nitrogen concentration, unit mg/L；Ordinate (right side) is the pH value in aerobic tank in figure, and unit is dimensionless.Aerobic tank in figure
The domestication process of nitrobacteria be divided into three phases, respectively biochemical expand accompanies stage, nitrification establishment stage and water to carry
The stage of liter.As shown in Figure 2, the density control of ammonia nitrogen is begun to decline for two days in aerobic tank, from second day to the 6th day, ammonia nitrogen from
209mg/L is reduced to 6.3mg/L, and in the water improvement stage until full load condition, the ammonia nitrogen of the clean water of aerobic tank can maintain
In 4-8mg/L.
It is above disclosed to be only a preferred embodiment of the present invention, the power of the present invention cannot be limited with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (10)
1. a kind of method of the ammonia nitrogen in removal Wastewater from Pig Farm, which is characterized in that including：
(1), Blastocystis, Micrococcus, nitrosomonas, bacillus are weighed, is added in reaction bulb, with tap water and is supported
After piggery wastewater dilution activation strain, uniformly spills in anoxic pond, have polyurethane nano filler and pig farm useless in anoxic pond
Water；
It weighs nitrifier to be added in reaction bulb, after tap water and Wastewater from Pig Farm dilution activation strain, uniformly spill in aerobic tank
In, there is polyurethane nano filler and Wastewater from Pig Farm in aerobic tank；
(2), anoxic pond is stirred so that the concentration of ammonia nitrogen is in preset range in anoxic pond, and makes ammonia nitrogen in aerobic tank
Concentration in preset range；
(3), anoxic pond is connected to aerobic tank, and Wastewater from Pig Farm is added in anoxic pond, wherein the waste water in anoxic pond
It unidirectionally enters in aerobic tank, when the ammonia nitrogen concentration in aerobic tank is less than preset range, continues Wastewater from Pig Farm being added to
In anoxic pond, and the water reflux in aerobic tank is added in anoxic pond, finally passes through the clean water of aerobic tank processing from aerobic
Pond is discharged.
2. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as described in claim 1, which is characterized in that for diluting activation bacterium
The tap water of kind and the ratio of Wastewater from Pig Farm are 1:2-1:8, activation strain 4-8 hours.
3. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as described in claim 1, which is characterized in that every liter of Wastewater from Pig Farm
0.02-0.2L polyurethane nano fillers are added.
4. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as claimed in claim 3, which is characterized in that the polyurethane nano
The specific surface area of filler is 30000-50000m2/m3, porosity 75-90%, water imbibition 50-200%.
5. as described in claim 1 removal Wastewater from Pig Farm in ammonia nitrogen method, which is characterized in that the aerobic tank and lack
The pH of anoxic pond and aerobic tank is adjusted to 7.0-8.0 by oxygen pond before strain is added.
6. as described in claim 1 removal Wastewater from Pig Farm in ammonia nitrogen method, which is characterized in that weigh Blastocystis,
Each 0.1-1g of Micrococcus, nitrosomonas, bacillus is added in reaction bulb.
7. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as described in claim 1, which is characterized in that weigh 0.1-1g nitrifications
Bacterium is added in reaction bulb.
8. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as described in claim 1, which is characterized in that stir anoxic pond
It mixes, mixing speed 80-250rpm, and by the control of the temperature of anoxic pond at 25-30 DEG C, pH controls exist in 7.5-8.5, DO controls
≤ 0.5mg/L so that the concentration of ammonia nitrogen is in preset range in anoxic pond；By the temperature control of aerobic tank at 25-30 DEG C, pH is controlled
It is controlled in 2-4mg/L in 7.5-8.5, DO so that the concentration of ammonia nitrogen is in preset range in aerobic tank.
9. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as described in claim 1, which is characterized in that when the ammonia in aerobic tank
When nitrogen concentration is less than 4-10mg/L, Wastewater from Pig Farm is added in anoxic pond by peristaltic pump, flow control is in 0.5L/h, stream
The water reflux of aerobic tank is added in anoxic pond by amount control in 0.5-5L/d, while by peristaltic pump, and flow control is in 0.5L/
H, flow control is in 0.5-5L/d.
10. the method for the ammonia nitrogen in removal Wastewater from Pig Farm as claimed in claim 9, which is characterized in that be stepped up pig raising
The water of field waste water and aerobic tank is added to the flow of anoxic pond, and flow is followed successively by 0.5L/d, 1L/d, 1.5L/d, 2.5L/d, 5L/
d。
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Application publication date: 20180727 |