CN106673294A - Resource utilization method of nitrogen and phosphorus in sewage - Google Patents
Resource utilization method of nitrogen and phosphorus in sewage Download PDFInfo
- Publication number
- CN106673294A CN106673294A CN201510758116.6A CN201510758116A CN106673294A CN 106673294 A CN106673294 A CN 106673294A CN 201510758116 A CN201510758116 A CN 201510758116A CN 106673294 A CN106673294 A CN 106673294A
- Authority
- CN
- China
- Prior art keywords
- fermentation
- sewage
- duckweed
- anaerobic
- carried out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
- C02F3/341—Consortia of bacteria
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention relates to the technical field of environmental protection and resource utilization, specifically to a resource utilization method of nitrogen and phosphorus in sewage. The method comprises the following steps: (1) a filter screen is arranged at the sewage outlet and solids are separated from sewage; (2) the fluid part obtained in the step (1) enters a fermentation tank and anaerobic fermentation is carried out; and (3) the bottom of the fermentation tank is provided with a water pipe which leads to a duckweed culture pond, and after 25-45 days of fermentation, biogas slurry obtained by the fermentation is supplied to the duckweed culture pond. After duckweed culture in the algae pond, absorption of nitrogen and phosphorus in the biogas slurry by duckweed exceeds 70%, and high yield of duckweed can be obtained for feed production.
Description
Technical field
The present invention relates to environmental protection and technical field of resource utilization, in particular to nitrogen phosphorus in a kind of sewage
The method of recycling.
Background technology
Water resource pollution mostlys come from this three big source of industrial wastewater, sanitary sewage and livestock and poultry liquid dung.Existing rank
Research of the section to waste water control, focuses mostly in terms of industrial wastewater and domestic sewage treatment.Because they are to city
City's ambient influnence is larger, and enterprise is solid financial strength, thus vast scientific research institutions and government department it is many with
Cartel, has put into substantial amounts of fund and technical staff, industrial wastewater and sanitary sewage has been carried out comprehensive
Close and administer, achieve great successes.And in wide rural area, due to economics of underdevelopment, the shortage of capital and
Necessary Pollution treatment installation, the improvement of the ecological environment in rural area is also very backward.From on China's agricultural production local
From the point of view of, although numerous experts and scholars propose the method that many livestock and poultry dung recoveries are utilized, domestic many enterprises
Industry also releases one after another a series of Handling Equipment of Animal Wastes, and is applied within the specific limits, but due to valency
The impact of lattice factor, does not also apply to for middle-size and small-size raiser, swine manure wastewater it is most of also with
Meaning discharge, therefore, in general agricultural wastes are not also more effectively processed, so as to cause agriculture
Village's environmental pollution is increasingly severe, and someone is Chinese current to describe with " city picture Europe, rural area picture Africa "
Environmental aspect.Rural environment construction problem is paid attention to by increasing people.
Sewage is both pollution sources, is again valuable resource, and it includes various nutrient contents necessary to plant.
But these nutrient content majorities are needed by the slow of environmental microorganism in the form of organic macromolecule
Degraded can be absorbed by water plant.And anaerobic fermentation system can be realized within a short period of time to sewage
The decomposition of middle organic macromolecule, so as to accelerate water plant to absorb these nutrient contents, realizes dirty
The fast purification of water.
Duckweed, also known as：Blue or green duckweed, Tian Ping, duckweed grass, water duckweed, duckweed grass, are that Lemnaceae water surface floating is planted
Thing.With distinguishing features such as fast growth, starch, protein content height, while duckweed can be directly sharp
Biomass growth is carried out with sewage.
Thallus is symmetrical, surface green, and the back side is light yellow or green white or be often purple, full edge, and tool 3 is not
Obvious vein；Hang down raw white thread 1 in the back side；The thallus back side has capsule, and neoleaflet is in intracapsular formation
Emersion, is connected with short handle with parent, is subsequently come off；Female flower has 1 piece of ovule；The nearly gyroscope-like of fruit；Seed
The endosperm of tool protrusion simultaneously has longitudinal rib.
Herb can make the feed of livestock and poultry.It is used as medicine with whole herb with root, cold in nature, taste is pungent, function sweating promoting eruption,
Clearing away heat and promoting diuresis, cure mainly the diseases such as table heresy heating, measles, oedema.
Therefore, duckweed has two kinds of purposes of environmental protection and new exploitation of energy resources simultaneously.
The content of the invention
Present invention aim at providing a kind of method that nitrogen phosphor resource is utilized in sewage.
In order to realize foregoing invention purpose, the present invention is as follows using technical scheme：
A kind of method that nitrogen phosphorus in sewage is carried out into recycling, the method is comprised the following steps：
(1) screen pack is set in outlet of sewer, solid matter is disconnected；
(2) step 1) obtained by fluid section enter fermentation vat, carry out anaerobic fermentation；
(3) bottom of fermentation vat is provided with the water pipe towards duckweed culture pond, and fermentation obtained fermentation after 25-45 days
The biogas slurry supply duckweed culture pond for obtaining.
The method that nitrogen phosphorus in sewage is carried out into recycling, step 2) anerobic sowage fermentation process step
Suddenly it is：Add flocculant to be processed in fluid, the time is 20-30 hours, anerobic sowage is put into afterwards and is sent out
In fermentation tank, with anaerobic activated sludge as inoculum, by volume the inoculum concentration for 30% is inoculated with, and forms anaerobism
Zymotic fluid, then by 5% access composite bacteria liquid of anaerobic fermented liquid totality accumulated amount, 20-30 DEG C of anaerobic fermentation 40
Hour.
By thalline number content meter：Described composite bacteria liquid is consisted of, Cellulomonase fimi 25%, and marsh is red
Pseudomonad 45%, trichoderma viride 17%, saccharomycete 13%.
The present invention has the advantages that compared with prior art the present invention is through the cultivation of algae pool duckweed of park
Afterwards, duckweed, while obtaining the duckweed of high yield, can be used to raise to the absorptivity of the nitrogen phosphorus of biogas slurry more than 70%
Material production.
Specific embodiment
With reference to embodiment, the present invention is described further.
Embodiment
A kind of method that nitrogen phosphorus in sewage is carried out into recycling, the method is comprised the following steps：
(1) screen pack is set in outlet of sewer, solid matter is disconnected；
(2) step 1) obtained by fluid section enter fermentation vat, carry out anaerobic fermentation；
(3) bottom of fermentation vat is provided with the water pipe towards duckweed culture pond, and fermentation obtained fermentation after 25-45 days
The biogas slurry supply duckweed culture pond for obtaining.
The method that nitrogen phosphorus in sewage is carried out into recycling, step 2) anerobic sowage fermentation process step
Suddenly it is：Add flocculant to be processed in fluid, the time is 20 hours, anerobic sowage fermentation tank is put into afterwards
In, with anaerobic activated sludge as inoculum, by volume the inoculum concentration for 30% is inoculated with, and forms anaerobic fermentation
Liquid, then by 5% access composite bacteria liquid of anaerobic fermented liquid totality accumulated amount, 30 DEG C of anaerobic fermentations 40 hours.
By thalline number content meter：Described composite bacteria liquid is consisted of, Cellulomonase fimi 25%, and marsh is red
Pseudomonad 45%, trichoderma viride 17%, saccharomycete 13%.
Claims (3)
1. a kind of method that nitrogen phosphorus in sewage is carried out into recycling, it is characterised in that the method include with
Lower step：
(1) screen pack is set in outlet of sewer, solid matter is disconnected；
(2) step 1) obtained by fluid section enter fermentation vat, carry out anaerobic fermentation；
(3) bottom of fermentation vat is provided with the water pipe towards duckweed culture pond, and fermentation obtained fermentation after 25-45 days
The biogas slurry supply duckweed culture pond for obtaining.
2. the method for according to claim 1 nitrogen phosphorus in sewage being carried out into recycling, it is characterised in that
Step 2) anerobic sowage fermentation process step be：Flocculant is added to be processed in fluid, the time is
20-30 hours, afterwards put into anerobic sowage fermentation tank in, with anaerobic activated sludge as inoculum, by volume for
30% inoculum concentration inoculation, forms anaerobic fermented liquid, and then 5% access by anaerobic fermented liquid totality accumulated amount is multiple
Close bacterium solution, 20-30 DEG C of anaerobic fermentation 40 hours.
3. the method for according to claim 2 nitrogen phosphorus in sewage being carried out into recycling, it is characterised in that
By thalline number content meter：Described composite bacteria liquid is consisted of, Cellulomonase fimi 25%, and marsh is red false single
Born of the same parents bacterium 45%, trichoderma viride 17%, saccharomycete 13%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758116.6A CN106673294A (en) | 2015-11-10 | 2015-11-10 | Resource utilization method of nitrogen and phosphorus in sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758116.6A CN106673294A (en) | 2015-11-10 | 2015-11-10 | Resource utilization method of nitrogen and phosphorus in sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106673294A true CN106673294A (en) | 2017-05-17 |
Family
ID=58863310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510758116.6A Pending CN106673294A (en) | 2015-11-10 | 2015-11-10 | Resource utilization method of nitrogen and phosphorus in sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106673294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204054A (en) * | 2019-07-10 | 2019-09-06 | 广东石油化工学院 | A method of utilizing duckweed processing high concentration antibiotic pig raising biogas slurry |
-
2015
- 2015-11-10 CN CN201510758116.6A patent/CN106673294A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204054A (en) * | 2019-07-10 | 2019-09-06 | 广东石油化工学院 | A method of utilizing duckweed processing high concentration antibiotic pig raising biogas slurry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |