CN107055775A - Processing system and processing method for low ratio of carbon to ammonium aquiculture waste water - Google Patents
Processing system and processing method for low ratio of carbon to ammonium aquiculture waste water Download PDFInfo
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- CN107055775A CN107055775A CN201611233212.XA CN201611233212A CN107055775A CN 107055775 A CN107055775 A CN 107055775A CN 201611233212 A CN201611233212 A CN 201611233212A CN 107055775 A CN107055775 A CN 107055775A
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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
- 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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Abstract
The invention discloses a kind of processing system and method for wastewater treatment for low ratio of carbon to ammonium aquiculture waste water, belong to technical field of biological treatment of wastewater.The processing system includes the nitrification installation linked together with denitrification device, storage of waste water device, for the pipeline connected and the circulating pump for making waste water be circulated in said apparatus；It the treating method comprises 1. microorganism colonization 2. circular treatment and 3. repeat step, the Waste Water Treatment and method of wastewater treatment are applied to the relatively low aquiculture waste water processing of carbon-nitrogen ratio, the biomembrane of bacterial community composition can be generated on filler, the clearance of its ammonia nitrogen, nitrite nitrogen and total nitrogen is positively retained at more than 90% substantially, system run all right, non-secondary pollution is produced and easy to maintenance, and operation is easy.
Description
Technical field
The present invention relates to technical field of biological treatment of wastewater, in particular to a kind of for low ratio of carbon to ammonium aquiculture waste water
Processing system and processing method.
Background technology
The aquaculture of China is more to be carried out with the intensive industrial aquaculture pattern of high density, ammonia in the water body of such a aquaculture model
Nitrogen, nitrite nitrogen content often severe overweight, the development to aquaculture bring destructive influences；Initially, in order to keep
Good breeding environment, culturist, which adds, changes water frequency, this not only waste water resource, around the waste water directly discharged also jeopardizes
Water ecological environment.
In the two class main methods that denitrogenation is carried out to breeding wastewater, biological denitrificaion method has expense relative to physical-chemical process
Advantage that is low, not producing secondary pollution, do not destroy breeding ecological balance, is the method for optimizing for handling breeding wastewater；At present, it is traditional
The biological denitrification process using nitrification/denitrification as core be widely used, such as application publication number be CN
105692900 A Chinese invention patent discloses a kind of short-cut nitrification-denitrification intermittent aerating batch-type biological reaction apparatus
And the method for processing high-ammonia-nitrogen sewage, the efficient process of high-ammonia-nitrogen sewage is realized, the content of nitrogen and phosphorous of sewage is reduced.
However, aquiculture waste water has a characteristic of low ratio of carbon to ammonium mostly, particularly greenhouse Chinese turtle aquaculture effluent, 70% with
On water sample its carbon-nitrogen ratio be less than 2.Research shows, under conditions of low ratio of carbon to ammonium, and the nitrogen clearance of traditional handicraft significantly drops
It is low, it is necessary to be improved to ensure denitrification effect to technique.
The content of the invention
Present invention aim to provide at a kind of processing system and waste water for low ratio of carbon to ammonium aquiculture waste water
Reason method, it is adaptable to carbon-nitrogen ratio（C/N, C are in terms of COD）Relatively low aquiculture waste water processing, its ammonia nitrogen, nitrite nitrogen and total
The clearance of nitrogen is positively retained at more than 90% substantially.
To achieve the above object, a kind of processing system for low ratio of carbon to ammonium aquiculture waste water designed by the present invention,
For handling aquiculture waste water, including link together nitrification installation and denitrification device, storage of waste water device, for even
Logical pipeline and the circulating pump for making waste water be circulated in said apparatus, waste water first flow through the nitrification installation, passed through
The denitrification device；The nitrification installation is combined by nitrification grid, filled with nitrification filler, institute in the nitrification grid
State denitrification device to be combined by denitrification grid, solid-phase carbon source filler is filled with the denitrification grid.
Nitrification filler is used to provide nitrobacteria attachment surface, promotes it to be enriched with and grow, ammonia nitrogen is converted as nitrobacteria
" the nitrification field " of class material, typically, its surface area are bigger better；Solid-phase carbon source filler is for low ratio of carbon to ammonium breeding wastewater
Denitrification denitrogenation is most important, and required carbon source can be provided for denitrifying bacteria, strengthens the removal efficiency of nitrogen.
As the preferred of above-mentioned technical proposal, the nitrification filler is several floating stuffings, and the floating stuffing includes
The circle of some concentrics and the connecting portion for connecting the circle, it is hollow structure, in the presence of current and aeration, is in
Suspension fluidization state.As the preferred of above-mentioned technical proposal, the nitrification filler is the elasticity being suspended in the nitrification grid
Filler, the surrounding of the elastic filler is provided with some branches extended out.
The specific surface area ﹥ 100m of floating stuffing2/m3, space is provided for a large amount of attached growth of microorganisms, especially for certainly
The type of supporting, the growth of the nitrobacteria of attachment growth characteristic create condition.Meanwhile, the easy fluidisation of filler is added to bubble
Hit and cut, improve the utilization rate of oxygen, microorganism is in the increased logarithmic phase of high activity, improve the removal of organic matter
And the transformation efficiency of the material such as ammonia nitrogen.
The characteristics of elastic filler of suspension has integration, its is easy to loading and unloading quick, and filler specific surface area itself is big, micro- life
Thing attachment space is big, easy to be filmed, and its branch can keep radial exhibition in water for a long time, good to the cutting performance of rising bubble,
The transfer rate and utilization rate of oxygen are improved, is conducive to the progress of nitration reaction.
As the preferred of above-mentioned technical proposal, the nitrification grid and the denitrification grid on being staggered by opening
Mouth grid and under shed grid are combined, and the bottom of the upper shed grid is shut, and is opened under the horizontal level of upper end is more described
The upper end of mouth grid is low；The under shed grating base opening, the upper end of the horizontal level upper shed grid of upper end is high.
The purpose being arranged such is flow path and the residence time for extending breeding wastewater so that the nitre in breeding wastewater
Change and anti-nitration reaction is able to fully carry out, improve the removal efficiency of nitrogen.
As the preferred of above-mentioned technical proposal, the solid-phase carbon source filler is the cylindrical pellet that PHBV materials are made.
Methanol, ethanol, acetic acid, glucose also can be as carbon sources, but it the not enough or excessive situation of dosage easily occurs,
Denitrification effect is unstable, troublesome maintenance；Some natural solid-phase carbon sources, such as：Stalk.Bark, reed etc. are cheap, but it drops
Xie Shihui produces substantial amounts of ammonia, and with the problem of environmental pollution of water outlet color burn.
PHVB (PHBV) is the organic high molecular polymer obtained using biological fermentation engineering.It is
Microorganism, (as lacked nitrogen, phosphorus), is stored under nonequilibrium condition using some organic compounds as oneself energy and carbon source
The aliphatic polymer generated in vivo, is substantially the energy reserves material in microorganism growth.Because PHBV can be with each
It is raw material to plant organic matter such as starch sugar, food industry wastes, waste water fruits and vegetables, plant debris etc., thus with extensive next
Source.PHBV has preferable biological degradability, is degraded in the presence of microbial enzyme, discharges carbon source.
When the concentration of Water is higher, denitrifying bacteria is active, the amount relative increase of the enzyme of degraded PHBV correlations, releases
The carbon source put just compares many；With the decline of the concentration of nitrogen, the activity reduction of anti-bacterial digestion, the amount of relevant enzyme declines therewith,
The release of carbon source also can be reduced accordingly.Therefore, PHBV not only provides continuous carbon source for biological denitrificaion, and as a kind of slow
Carbon source is released, its degradation rate can make corresponding regulation with the change of environment, water quality will not be made because of the excessive organic carbon of release
Deteriorate.On the one hand, PHBV is conducive to the formation of biomembrane as solid-phase matrix, on the other hand, in denitrification denitrogenation running,
Frequent maintenance is not needed, it is only necessary to add on time or change carbon source, the cycle can count in year, and this simplifies control to a great extent
Technique and operation cost.When actual use, the solid-phase carbon source filler that PHVB is made is sub-packed in mesh bag, then be thrown to denitrification
In grid.
As the preferred of above-mentioned technical proposal, the port of export of the denitrification device is provided with intake.
As the preferred of above-mentioned technical proposal, aerator is provided with the nitrification grid of the nitrification installation.
As the preferred of above-mentioned technical proposal, drop oxygen dress is provided between the nitrification installation and the denitrification device
Put, the drop oxygen device includes no-arbitrary pricing in several grids, the grid.
The purpose that drop oxygen device is set is to reduce the dissolved oxygen in water body, and the aeration of nitrification installation causes dissolved oxygen in feed liquid
Amount increases, and can suppress the reaction of denitrification device, and then reduce nitric efficiency.
A kind of method of wastewater treatment, comprises the following steps：
1. microorganism colonization：Breeding wastewater is injected in the processing system, and open the circulation pump causes processing system to be in operation shape
State, it is 25 ~ 30 DEG C to remain on environment temperature, the breeding wastewater for changing half in every 3 days, and water sampling detects its NH every other day4-N、
NO2- N and TN concentration, i.e. biofilm is completed after the concentration of above-mentioned substance is stable；
2. circular treatment：The pending breeding wastewater of injection, in the processing of processing system interior circulation, by the flow for setting circulating pump
The cycle period of breeding wastewater was controlled at 8 hours, breeding wastewater is discharged after processing；
3. repeat：Repeat step is 2..
The present invention compared with prior art, with advantages below and beneficial effect：
（1）The Waste Water Treatment and method of wastewater treatment are applied to the relatively low aquiculture waste water processing of carbon-nitrogen ratio, Neng Gou
The biomembrane that bacterial community is constituted is generated on filler, the clearance of its ammonia nitrogen, nitrite nitrogen and total nitrogen is positively retained at 90% substantially
More than；
The application application Miseq high throughput sequencing technologies are in the biomembrane a and denitrification device on filler in nitrification installation
The bacterial community the Nomenclature Composition and Structure of Complexes of biomembrane b on PHBV fillers is analyzed, and its abundance and diversity indices see the table below：
Wherein, Proteobacteria is topmost bacterium door in a and b, and it in 93.26%, b is 65.68% to be in a samples.Nitrify spirillum
Door is distinctive dominant bacteria in a, and Firmicutes, Bacteroidetes, conveyor screw door and green bacterium door have in two diffraction patterns for biomembrane samples
Identify, but the accounting in b is far above a.
（2）The Waste Water Treatment is stable, and non-secondary pollution is produced；
（3）The Waste Water Treatment is easy to maintenance；
（4）The Waste Water Treatment and processing method operation are easy.
Brief description of the drawings
Fig. 1 is the structural representation of the processing system for low ratio of carbon to ammonium aquiculture waste water.
Fig. 2 is the breeding wastewater flow channel structure schematic diagram of upper shed grid and the formation of under shed grid.
Fig. 3 is floating stuffing structural representation.
Fig. 4 is elastic filler structural representation.
Fig. 5 is that microorganism colonization stage each material concentration and pH value described in embodiment 3 change with time tendency chart；
Fig. 6 is that nitrogen substance concentration and pH value change with time tendency chart in processing procedure described in embodiment 3；
Fig. 7 is that nitrogen substance concentration and pH value change with time tendency chart in processing procedure described in embodiment 4；
In figure：Nitrification installation 1, nitrification grid 11, nitrification filler 12, floating stuffing 12-a, elastic filler 12-b, denitrification device
2nd, denitrification grid 21, solid-phase carbon source filler 22, intake 23, upper shed grid a, under shed grid b, storage of waste water device 3,
Pipeline 4, circulating pump 5, aerator 6, drop oxygen device 7.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Embodiment 1：With reference to Fig. 1 ~ Fig. 3, for the processing system of low ratio of carbon to ammonium aquiculture waste water, including the nitre set gradually
Makeup puts 1, drop oxygen device 7 and denitrification device 2, storage of waste water device 3, for the pipeline 4 that connects and make waste water above-mentioned
The circulating pump 5 circulated in device, in addition to the aerator 6 being arranged in the nitrification grid 11 of the nitrification installation 1, give up
Water first flows through the nitrification installation 1, passes through the denitrification device 2；
The nitrification installation 1 is combined by nitrification grid 11, filled with nitrification filler 12, the nitre in the nitrification grid 11
It is several floating stuffings 12-a to change filler 12, and the floating stuffing 12-a includes the circle of some concentrics and connects the circle
The connecting portion of circle；
The denitrification device 2 is combined by denitrification grid 21, is filled out in the denitrification grid 21 filled with solid-phase carbon source
Material 22, the solid-phase carbon source filler 22 is the cylindrical pellet that PHBV materials are made, and the port of export of the denitrification device 2 is set
There is intake 23；
The drop oxygen device 7 includes four grids, is not provided with filler in it.
The nitrification grid 11 and the denitrification grid 21 are by the upper shed grid a and under shed grid being staggered
B is combined, and the bottom of the upper shed grid a is shut, and the horizontal level under shed grid b of upper end upper end is low；
The under shed grid b bottom openings, the horizontal level upper shed grid a of upper end upper end is high.
Embodiment 2：With reference to Fig. 1, Fig. 2 and Fig. 4, it is with the difference of embodiment 1：The nitrification filler 12 is suspension
Elastic filler 12-b in the nitrification grid 11, the surrounding of the elastic filler 12-b is provided with some points extended out
Branch.
Embodiment 3：Reference table 1, with reference to Fig. 5, Fig. 6, a kind of aquiculture waste water processing method, for handling breeding soft-shell turtle
Waste water, comprises the following steps：
1. microorganism colonization：Breeding wastewater is injected in the processing system, and open the circulation pump causes processing system to be in operation shape
State, regulation circulating pump causes the every 24 hours circulation primaries of breeding wastewater, and it is 25 ~ 30 DEG C to remain on environment temperature, changes within every 3 days
The breeding wastewater of half, every other day water sampling determine its NH4-N、NO2- N and TN concentration, hangs after the concentration of above-mentioned substance is stable
Film is completed, and this process continue for 4 weeks, finally measure the NH of water body4-N、NO2- N and TN numerical value is stablized in 1.0 ~ 1.4mg/ respectively
L, 0.05 ~ 0.07mg/L, 12 ~ 15mg/L, pH value are 7.2 ~ 7.5；
2. circular treatment：The pending breeding wastewater of injection, in the processing of processing system interior circulation, by the flow for setting circulating pump
The cycle period of breeding wastewater was controlled at 8 hours, processing discharged the breeding wastewater after processing after 96 hours；
3. repeat：Repeat step is 2..
The NH of Chinese turtle aquaculture effluent4-N、NO2- N and TN content is down to 1.2mg/L, 0.05mg/L, 2.0mg/L, ammonia respectively
The clearance of nitrogen, nitrite nitrogen and total nitrogen is respectively 97.58%, 97.02% and 98.43%.
The water quality of the embodiment 3 of table 1 and the pending waste water of embodiment 4
Embodiment 4：Reference table 1, Fig. 7, a kind of aquiculture waste water processing method, for handling South America prawn culturing waste water, bag
Include following steps：
1. microorganism colonization：Using processing system used in embodiment 3, biofilm is completed, the present embodiment is not repeated to be hung
Film；
2. circular treatment：The pending South America prawn culturing waste water of injection, in the processing of processing system interior circulation, is circulated by setting
The flow of pump controls the cycle period of breeding wastewater at 8 hours, and processing discharged the breeding wastewater after processing after 48 hours；
3. repeat：Repeat step is 2..
NH4-N, NO2-N and TN of South America prawn culturing waste water content are down to 0.36mg/L, 0.02mg/L respectively,
1.2mg/L, the clearance of ammonia nitrogen, nitrite nitrogen and total nitrogen is respectively 90.24%, 98.60% and 90.4%.
When embodiment 3 and this other kinds of breeding wastewater of post processing of embodiment 4, the cultivation for being not limited to this type is given up
Water, and without repeating microorganism colonization step.
Claims (9)
1. for the processing system of low ratio of carbon to ammonium aquiculture waste water, for handling aquiculture waste water, it is characterised in that：Including
The nitrification installation linked together（1）And denitrification device（2）, storage of waste water device（3）, pipeline for connection（4）And
Make the circulating pump that waste water is circulated in said apparatus（5）, waste water first flows through the nitrification installation（1）, pass through described anti-
Nitrification installation（2）；The nitrification installation（1）By nitrification grid（11）Combine, the nitrification grid（11）It is interior to be filled with nitre
Change filler（12）, the denitrification device（2）By denitrification grid（21）Combine, the denitrification grid（21）Interior filling
There is solid-phase carbon source filler（22）.
2. the processing system according to claim 1 for low ratio of carbon to ammonium aquiculture waste water, it is characterised in that：The nitre
Change filler（12）For several floating stuffings（12-a）, the floating stuffing（12-a）Circle and connection including some concentrics
The connecting portion of the circle.
3. the processing system according to claim 1 for low ratio of carbon to ammonium aquiculture waste water, it is characterised in that：The nitre
Change filler（12）To be suspended on the nitrification grid（11）Interior elastic filler（12-b）, the elastic filler（12-b）Surrounding
It is provided with some branches extended out.
4. the processing system according to claim 1 for low ratio of carbon to ammonium aquiculture waste water, it is characterised in that：The nitre
Change grid（11）With the denitrification grid（21）By the upper shed grid being staggered（a）With under shed grid（b）Combination
Form, the upper shed grid（a）Bottom shut, the horizontal level under shed grid of upper end（b）Upper end it is low；Institute
State under shed grid（b）Bottom opening, the horizontal level upper shed grid of upper end（a）Upper end it is high.
5. the processing system according to claim 1 for low ratio of carbon to ammonium aquiculture waste water, it is characterised in that：It is described solid
Phase carbon source filler（22）The cylindrical pellet being made for PHBV materials.
6. the processing system according to claim 1 for low ratio of carbon to ammonium aquiculture waste water, it is characterised in that：It is described anti-
Nitrification installation（2）The port of export be provided with intake（23）.
7. the processing system according to claim 1 for low ratio of carbon to ammonium aquiculture waste water, it is characterised in that：The nitre
Makeup is put（1）With the denitrification device（2）Between be provided with drop oxygen device（7）, the drop oxygen device（7）Including several lattice
No-arbitrary pricing in grid, the grid.
8. the processing system for low ratio of carbon to ammonium aquiculture waste water according to any bar in claim 1 ~ 7, its feature
It is：The nitrification installation（1）Nitrification grid（11）Inside it is provided with aerator（6）.
9. one kind is using the method for wastewater treatment that processing system described in any bar is handled in claim 1 ~ 8, it is characterised in that：Bag
Include following steps：
1. microorganism colonization：Breeding wastewater is injected in the processing system, and open the circulation pump causes processing system to be in operation shape
State, it is 25 ~ 30 DEG C to remain on environment temperature, the breeding wastewater for changing half in every 3 days, and water sampling determines its NH every other day4-N、
NO2It is that biofilm is completed after-N and TN concentration, the measure value stabilization of above-mentioned substance content；
2. circular treatment：The pending breeding wastewater of injection, in the processing of processing system interior circulation, by the flow for setting circulating pump
The cycle period of breeding wastewater was controlled at 8 hours, breeding wastewater is discharged after processing；
3. repeat：Repeat step is 2..
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963720A (en) * | 2017-12-10 | 2018-04-27 | 济南大学 | A kind of short distance nitration coupling solid slow-release carbon source denitrification combination nitrogen rejection facility and method |
| CN109081441A (en) * | 2018-09-04 | 2018-12-25 | 北京高能时代环境技术股份有限公司 | A kind of system and method for recovering waste water from aquatic culture in original place |
| CN109133523A (en) * | 2018-09-25 | 2019-01-04 | 南阳师范学院 | A kind of livestock and poultry cultivation wastewater treatment equipment and processing method based on forward osmosis membrane |
| CN114208755A (en) * | 2021-12-27 | 2022-03-22 | 中国水产科学研究院黄海水产研究所 | Efficient water-saving prawn culture system and using method thereof |
| CN116199346A (en) * | 2023-03-31 | 2023-06-02 | 中国科学院城市环境研究所 | Ammonia nitrogen wastewater partial nitrification treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963720A (en) * | 2017-12-10 | 2018-04-27 | 济南大学 | A kind of short distance nitration coupling solid slow-release carbon source denitrification combination nitrogen rejection facility and method |
| CN109081441A (en) * | 2018-09-04 | 2018-12-25 | 北京高能时代环境技术股份有限公司 | A kind of system and method for recovering waste water from aquatic culture in original place |
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| CN114208755A (en) * | 2021-12-27 | 2022-03-22 | 中国水产科学研究院黄海水产研究所 | Efficient water-saving prawn culture system and using method thereof |
| CN114208755B (en) * | 2021-12-27 | 2023-01-13 | 中国水产科学研究院黄海水产研究所 | Efficient water-saving prawn culture system and using method thereof |
| CN116199346A (en) * | 2023-03-31 | 2023-06-02 | 中国科学院城市环境研究所 | Ammonia nitrogen wastewater partial nitrification treatment device |
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