CN100564289C - Be used to handle the plural serial stage methane tank of breeding wastewater - Google Patents
Be used to handle the plural serial stage methane tank of breeding wastewater Download PDFInfo
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- CN100564289C CN100564289C CNB2007100291030A CN200710029103A CN100564289C CN 100564289 C CN100564289 C CN 100564289C CN B2007100291030 A CNB2007100291030 A CN B2007100291030A CN 200710029103 A CN200710029103 A CN 200710029103A CN 100564289 C CN100564289 C CN 100564289C
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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
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The present invention relates to a kind of plural serial stage methane tank that is used to handle breeding wastewater, each processing unit mainly is made up of main pond and secondary pond, be round shape, main pond links to each other with secondary pond by pipe connecting, 48～52cm at the bottom of the pipe connecting mouth of pipe distance pond, main pond, 28～32cm at the bottom of the distance pond, secondary pond, caliber is 25～40cm, airway is all established in main pond and top, secondary pond; Plural serial stage methane tank is minimum to be to be formed by connecting by thrust-augmenting nozzle by three processing units, and the waterplant pond is received by thrust-augmenting nozzle in the secondary pond of last processing unit, and the waterplant pond is connected to liquid storage tank by thrust-augmenting nozzle.The present invention is owing to adopt the plural serial stage mode, has higher biological interception capacity, activated sludge concentration height in the pond, and the biogas flora rationally distributes between each compartment, thereby can be than steady running under the high-pollution load, have better, easy to use, the lower-cost characteristics of breeding wastewater treatment effect, be particularly useful for the middle-size and small-size livestock and poultry farm in rural area.
Description
Technical field
The present invention relates to a kind of methane-generating pit, particularly a kind of plural serial stage methane tank that is used to handle breeding wastewater.
Background technology
Breeding wastewater belongs to high concentrated organic wastewater, and intractability is big, the expense height.At present most popular is anaerobism+aerobic+biopurification combination process, the main upflow type anaerobic reactor UASB that adopts of its anaerobism part, the UASB volume is less relatively, treatment effect is good, but exist following point to make it be difficult to promote in middle-size and small-size plant: the one, advance water suspended solids SS and can not surpass 4000～5000mg/L, otherwise influence treatment effect; The 2nd, need to cultivate well behaved granule sludge, this has certain technical difficulty; The 3rd, its cost is higher relatively.The way that breeding wastewater is handled with simple methane-generating pit in China rural area is also very popular, wherein uses hydraulic type biomass pool the most generally.Hydraulic type biomass pool is the methane-generating pit that China uses the earliest, quantity is maximum, and its advantage is that pond body stress performance is good, thereby labor and material saving, and cost is lower, easily promotes in peasant household.Its shortcoming is the pressure variation impermanence, damages methane-generating pit and biogas device easily; Scum silica frost forms hard crust easily in the pond; The fermentation raw material utilization ratio is lower, and pond appearance factor of created gase is lower etc.In addition, the methane-generating pit outlet water organic substance concentration is still very high, if directly discharging, could serious environment pollution.In recent years, when using anaerobic fermentation tank to handle the technology of large-scale livestock and poultry farm waste water report is arranged, its water outlet Pollutant levels are quite high, reach emission standard and also need pass through aerobic treatment, increased running cost and management difficulty, and one-time investment is bigger, the middle and small scale raiser is difficult to bear.
Summary of the invention
Purpose of the present invention just provides better, easy to use, the lower-cost plural serial stage methane tank of a kind of treatment effect, is mainly used in the processing breeding wastewater, a large amount of biogas of by-product.
The present invention can be realized by following mode: described main pond links to each other with secondary pond by pipe connecting, 48～52cm at the bottom of the pipe connecting mouth of pipe distance pond, main pond, 28～32cm at the bottom of the distance pond, secondary pond, the pipe connecting caliber is 25～40cm, main pond and secondary pond are round shape, are higher than at the bottom of the pond, secondary pond at the bottom of the pond, main pond, and both differences are 18～22cm, be equipped with airway on main pond and the secondary pond, constitute a processing unit like this; Plural serial stage methane tank is minimum to be to be formed by connecting by thrust-augmenting nozzle by three processing units, the main pond of first processing unit is connected to the charging pond by feed-pipe, top, charging pond is provided with filter screen, the main pond of last processing unit is connected to the waterplant pond by thrust-augmenting nozzle, and the waterplant pond is connected to liquid storage tank by thrust-augmenting nozzle.
Be implanted with the strong waterplant Herba Eichhorniae of soil removability or cyperus alternifolius or reed or cattail etc. in the described waterplant pond.
The present invention has following characteristics:
(1) the processing unit structure is simple relatively, need not filler, reduces management difficulty, the reduction expense.
(2) influent quality is less demanding, allows the sewage of higher concentration to enter the charging pond.
(3) owing to adopt the plural serial stage mode, methane-generating pit has higher biological interception capacity, and the biosolids in the methane-generating pit is trapped in the activated sludge layer that forms high density in each pond, and methane-generating pit can be moved under higher load.
(4) owing to adopt the plural serial stage mode, make the inner various biogas floras of methane-generating pit rationally distributing between each compartment: as in the front end compartment mainly based on Sarcina, in the intermediary compartment based on the methanothrix sp genus, then have heterotrophism methanobacteria and desulfovibrio etc. in the compartment of rear end, this distribution makes methane-generating pit have stable and treatment effect efficiently.
(5) between main pond and the secondary pond heavy caliber pipe connecting is set, has strengthened the material exchange of the two, avoid stopping up, pipe connecting has certain distance at the bottom of the pond, can avoid main pond to produce the dry-pressing slag because of dehydration.
(6) adopt the strong waterplant of soil pick-up ability such as Herba Eichhorniae or cyperus alternifolius or reed or cattail etc. to handle the methane-generating pit water outlet, simple and practical, be particularly useful for the middle-size and small-size livestock and poultry farm in rural area.
Description of drawings
Fig. 1 is a structural representation of the present invention.
In the drawings: filter screen 1, charging pond 2, feed-pipe 3, pipe connecting 4, airway 5, thrust-augmenting nozzle 6, main pond 7, secondary pond 8, waterplant pond 9, liquid storage tank 10.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described, but it is not represented as unique embodiment of the present invention.
Embodiment one
Please read Fig. 1, the present invention adopts embed type, be beneficial to keep the pond temperature, the design in main pond 7 and secondary pond 8 has absorbed the advantage of traditional hydraulic type biomass pool, promptly adopts the good round shape of force structure, compares with traditional hydraulic type biomass pool, secondary pond 8 is equivalent to the hydraulic pressure pond of hydraulic type biomass pool, but strengthened volume, helped storing more biogas, thereby avoided the fluctuation of air pressure.Main pond 7 adopts heavy caliber pipe connecting 4 to be connected with secondary pond 8,48cm at the bottom of the pipe connecting mouth of pipe distance pond, main pond, 28cm at the bottom of the distance pond, secondary pond, secondary pond is higher than at the bottom of the pond, main pond at the bottom of the pond, and both differences are 20cm, and the pipe connecting caliber is 25cm, on main pond 7 and secondary pond 8, be equipped with airway 5 and collect biogas, the biogas that is produced to maximally utilise, and reduce the methane-generating pit internal pressure, constitute a processing unit like this; Plural serial stage methane tank is to be formed by connecting by thrust-augmenting nozzle 6 by three processing units, the main pond 7 of first processing unit is connected to charging pond 2 by feed-pipe 3,2 tops, charging pond are provided with filter screen 1, avoid the material of difficult degradations such as pig hair to enter in the charging pond 2, the main pond 7 of last processing unit is connected to waterplant pond 9 by thrust-augmenting nozzle 6, interplantation Herba Eichhorniae in waterplant pond with further reduction organic concentration, is realized qualified discharge.Herba Eichhorniae is regularly gathered in the waterplant pond, after the Herba Eichhorniae of gathering dries, can add methane-generating pit as carbon source, so that carbon-nitrogen ratio is kept desirable level in the pond, improves factor of created gase.Waterplant pond 9 is connected to liquid storage tank 10 by thrust-augmenting nozzle 6.
Embodiment two
Please read Fig. 1, the present invention adopts embed type, be beneficial to keep the pond temperature, main pond 7 links to each other with secondary pond 8 by pipe connecting 4,52cm at the bottom of the pipe connecting mouth of pipe distance pond, main pond, 32cm at the bottom of the distance pond, secondary pond, secondary pond is higher than at the bottom of the pond, main pond at the bottom of the pond, and the pipe connecting caliber is 40cm, and main pond 7 is round shape with secondary pond 8, be equipped with airway 5 on main pond 7 and the secondary pond 8, constitute a processing unit like this; Plural serial stage methane tank is to be formed by connecting by thrust-augmenting nozzle 6 by four processing units, the main pond 7 of first processing unit is connected to charging pond 2 by feed-pipe 3, be provided with filter screen 1 in the charging pond 2, the main pond 7 of last processing unit is connected to waterplant pond 9 by thrust-augmenting nozzle 6, be implanted with waterplant cyperus alternifolius or reed or cattail etc. in the waterplant pond 9, waterplant pond 9 is connected to liquid storage tank 10 by thrust-augmenting nozzle 6.
The pig farm of 500 pigs of certain livestock on hand adopts plural serial stage methane tank shown in Figure 1 to handle the waste water of raising pigs, and its total effectively pond holds 120m
3After fecaluria separates, the water inlet chemical oxygen demand COD
Cr2500～7800mg/L, five-day BOD BOD
51000～4800mg/L, suspended solids SS 260～4800mg/L, the waste water of raising pigs flows into charging pond 2 through filter screen 1 and enters main pond 7 by feed-pipe 3, enter secondary pond 8 by pipe connecting 4, flow into second and third then successively, manage the unit everywhere, water outlet enters waterplant pond 9, enter liquid storage tank 10 at last, the biogas that produces is discharged by airway 5, can use near 20 tame peasant households, and economic benefit is obvious.Water outlet COD
Cr, BOD
5, index such as SS meets livestock and poultry breeding industry pollutant emission standard GB18596-2001 requirement.
Claims (2)
1, a kind of plural serial stage methane tank that is used to handle breeding wastewater, it is characterized in that described main pond (7) links to each other with secondary pond (8) by pipe connecting (4), 48～52cm at the bottom of the pipe connecting mouth of pipe distance pond, main pond, 28～32cm at the bottom of the distance pond, secondary pond, the pipe connecting caliber is 25～40cm, main pond (7) are round shape with secondary pond (8), secondary pond is higher than at the bottom of the pond, main pond at the bottom of the pond, both differences are 18～22cm, are equipped with airway (5) on main pond (7) and secondary pond (8), constitute a processing unit like this; Plural serial stage methane tank is minimum to be to be formed by connecting by thrust-augmenting nozzle (6) by three processing units, the main pond (7) of first processing unit is connected to charging pond (2) by feed-pipe (3), top, charging pond (2) is provided with filter screen (1), the main pond (7) of last processing unit is connected to waterplant pond (9) by thrust-augmenting nozzle (6), and waterplant pond (9) are connected to liquid storage tank (10) by thrust-augmenting nozzle (6).
2, the plural serial stage methane tank that is used to handle breeding wastewater according to claim 1 is characterized in that described waterplant pond (9) interplantation waterplant Herba Eichhorniae or cyperus alternifolius or reed or cattail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100291030A CN100564289C (en) | 2007-07-12 | 2007-07-12 | Be used to handle the plural serial stage methane tank of breeding wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100291030A CN100564289C (en) | 2007-07-12 | 2007-07-12 | Be used to handle the plural serial stage methane tank of breeding wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101117260A CN101117260A (en) | 2008-02-06 |
| CN100564289C true CN100564289C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100291030A Expired - Fee Related CN100564289C (en) | 2007-07-12 | 2007-07-12 | Be used to handle the plural serial stage methane tank of breeding wastewater |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974410B (en) * | 2010-09-28 | 2013-11-27 | 吴兆流 | Five-stage anaerobic methane reactor |
| CN105601069A (en) * | 2015-11-16 | 2016-05-25 | 中和荣华环保科技(北京)有限公司 | Quick starting system and method for producing methane through anaerobic digestion of sludge |
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- 2007-07-12 CN CNB2007100291030A patent/CN100564289C/en not_active Expired - Fee Related
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Granted publication date: 20091202 Termination date: 20130712 |