CN201512432U - Molasses alcohol waste water micro-aerophilic biological processing device for utilizing air to supply oxygen - Google Patents
Molasses alcohol waste water micro-aerophilic biological processing device for utilizing air to supply oxygen Download PDFInfo
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- CN201512432U CN201512432U CN2009201647598U CN200920164759U CN201512432U CN 201512432 U CN201512432 U CN 201512432U CN 2009201647598 U CN2009201647598 U CN 2009201647598U CN 200920164759 U CN200920164759 U CN 200920164759U CN 201512432 U CN201512432 U CN 201512432U
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- reactor
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- refluxes
- little oxygen
- waste water
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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
Abstract
The utility model discloses a molasses alcohol waste water micro-aerophilic biological processing device for utilizing air to supply oxygen. A micro-aerophilic reactor is built, discharged water of the reactor is firstly stored in a flow return barrel, the oxidation-reduction electric potential of liquid in the flow return barrel is monitored through an oxidation-reduction electric potential control instrument, a fan is automatically controlled to blow air into the flow return barrel, then, liquid after aeration can flow back into the reactor, and the oxidation-reduction electric potential in the reactor is controlled to form a micro-aerophilic environment. Activated sludge which is trained and is rich in sulfate-reducing bacteria, colorless sulfur bacteria and methane-producing bacteria is added into the reactor, the sulfate-reducing bacteria is utilized to reduce sulfate in molasses alcohol waste water into sulphide, simultaneously, the colorless sulfur bacteria oxidizes the sulphide into elemental sulfur, the inhabitation of sulphide on methane-producing bacteria is lowered, sulfate reduction, sulphide oxidation and methane-producing processes are realized in one reaction device, and highly effective treatment to the molasses alcohol waste water is realized.
Description
Technical field
The utility model relates to a kind of little oxygen biological treatment device of molasses alcohol waste water that utilizes the air oxygen supply.
Background technology
The byproduct molasses of cane sugar manufacture can be used for fermentative production alcohol, give off a large amount of molasses alcohol waste waters in the production process.Molasses alcohol waste water belongs to the high concentrated organic wastewater that is rich in vitriol, is a kind of more unmanageable trade effluent.At present, the molasses alcohol waste water processing mode is mainly contained coagulating sedimentation, evaporation concentration, membrane filtration technique and anaerobism and produce methane etc.Traditional coagulation sedimentation method easily causes sedimentary secondary pollution, and the processing cost height; The byproduct added value that evaporation concentration method is produced is not high, and market is less, has limited the development of this technology; Membrane technique handles thoroughly but processing cost is higher, and the running maintenance complexity, and difficulty is extensively promoted; Owing to there is a large amount of vitriol, the sulfide that bacterial reduction vitriol produces has bio-toxicity, makes methanogen be subjected to severe inhibition, and easily produces secondary pollution in the molasses alcohol waste water.
China's utility model patent " the little oxygen treatment unit of molasses alcohol waste water " (ZL 200720003749.7) is directly to charge into pure oxygen to inside reactor to control little oxygen environment, utilize colorless sulfur bacteria that the sulfide oxidation that sulphate reducing produces is become elemental sulfur, reduce sulfide to producing the influence of methane process, make sulphate reducing bacteria, colorless sulfur bacteria and methanogen be present in device inside simultaneously, realize sulfate reduction, sulfide oxidation, the product methane trinity.In device, directly charge into purity oxygen, the security requirement height, the running maintenance complexity, the use cost of pure oxygen is higher, and therefore difficulty is promoted widely.
Summary of the invention
The utility model purpose provide a kind of simple in structure, processing efficiency is high, security good, simple to operate, the little oxygen biological treatment device of the smart waste water of the mulse that is easy to operational management.
Basic ideas of the present invention: the water outlet of little oxygen reactor is stored in earlier in the bucket that refluxes, air is blasted the bucket that refluxes, redox potential (the ORP of liquid in the control backflow bucket, oxidation reduction potential), again partially liq is back to inside reactor, makes inside reactor form little oxygen environment.Under little oxygen condition, utilize sulphate reducing bacteria with the sulfate reduction sulphidisation, simultaneously, colorless sulfur bacteria becomes elemental sulfur with sulfide oxidation, reduce the inhibition of sulfide to methanogen, in a reaction unit, realize sulfate reduction, sulfide oxidation and product methane process simultaneously, realize the efficient processing of molasses alcohol waste water.
Realization of the present utility model: set up a little oxygen reactor, in reactor, add active sludge, be rich in sulphate reducing bacteria, methanogen and colorless sulfur bacteria in the active sludge through domestication.Reactor lower part is for being that mud district, top are the settling region.
Little oxygen reactor outer setting backflow bucket, little oxygen reactor water outlet enters the bucket that refluxes, and a part effluxes, and a part flow to little oxygen reactor inside by the recirculation water blowback.The redox potential probe is installed in the bucket that refluxes, is monitored the redox potential of liquid in the bucket that refluxes by the oxidation reduction potential control instrument.The aeration head of gas blower is installed in the bucket that refluxes, blower switch is connected with the oxidation reduction potential control instrument, when the liquid oxidation reduction potential is below or above set(ting)value, the oxidation reduction potential control instrument opens or closes gas blower automatically, liquid in the bucket that refluxes blasts air, utilize again the backflow water pump with liquid return to inside reactor, make inside reactor be in little oxygen condition, redox potential is stabilized in certain value.By the reactor effluent recycling, can reduce the concentration load of reactor, conditioned reaction device water inlet carbon-sulfur ratio, controlling reactor interior oxidation reduction potential.
After molasses alcohol waste water enters reactor from reactor bottom, vitriol is reduced into sulfide under the effect of sulphate reducing bacteria, colorless sulfur bacteria becomes elemental sulfur with sulfide oxidation, reduce the restraining effect of sulfide to methanogen, product methane process is carried out smoothly, organism in the waste water is degraded, and produces biogas.
The utility model utilizes the mode of drum air in the bucket that refluxes, again with the liquid return behind the aeration to inside reactor, automatic controlling reactor interior oxidation reduction potential.This apparatus structure is simple, operational safety, convenience, running cost is low, the organic volumetric loading of reactor is big, organic removal rate is higher, both sulfate radical is converted into elemental sulfur in same reactor, reduces the active influence of methanogen, remove the organic pollution materials in the waste water again effectively, and change into biogas.
Description of drawings
Fig. 1 is the utility model embodiment device synoptic diagram.
Be labeled as among the figure: 1. wastewater disposal basin, 2. intake pump, 3. wastewater inlet pipe, 4. mud district, 5. settling region, 6. little oxygen reactor, 7. circulation is incubated water jacket layer, 8 insulation water water outlets, 9. insulation water rising pipes, 10. insulation pond, 11. temperature regulators, 12. insulation water cycle water pumps, 13. triphase separator, 14. biogas air outlets, 15. little oxygen reactor water outlets, 16. rising pipe, 17. the oxidation reduction potential control instrument, 18. gas blowers, 19. blast mains, the bucket water outlet 20. reflux, the bucket 21. reflux, 22. redox potentials probe, 23. aeration heads, 24. the backflow water pipe, 25. reflux pumps.
Embodiment
Embodiment:
As shown in Figure 1, wastewater disposal basin 1 links to each other with intake pump 2, and connecting volume by wastewater inlet pipe 3 is cylindrical little oxygen reactor 6 of 12L, and little oxygen reactor 6 bottoms are mud district 4, and top is settling region 5; Little oxygen reactor 6 tops one side has a little oxygen reactor water outlet 15, links to each other with the bucket 21 that refluxes by rising pipe 16; The bucket 21 that refluxes is provided with the bucket water outlet 20 that refluxes, and the liquid in the bucket 21 that refluxes is pumped into the mud district 4 of little oxygen reactor 6 bottoms by reflux pump 25 by backflow water pipe 24; The throughput ratio of the flow of reflux pump 25 and intake pump 2 is 3: 1, and the hydraulic detention time of little oxygen reactor 6 internal liquids is 15 hours.
The redox potential probe 22 of oxidation reduction potential control instrument 17 inserts in the liquid of the bucket 21 that refluxes; Oxidation reduction potential control instrument 17 links to each other with gas blower 18 by electric wire, controls the switch of gas blower 18 automatically; Gas blower 18 links to each other with aeration head 23 by blast main 19, and aeration head 23 inserts in the liquid of the bucket 21 that refluxes, and when gas blower 18 is opened, blasts oxygenating air by aeration head 23 to liquid, and the reflux redox potential of bucket 21 interior liquid of control is-440mV.Little oxygen reactor 6 tops have a triphase separator 13 to link to each other with biogas air outlet 14, and biogas is discharged in the atmosphere.Reactor 6 outsides are with circulation insulation water jacket layer 7, and an insulation water water outlet 8 is arranged at circulation insulation water jacket layer 7 tops, links to each other with insulation pond 10 by attemperater 9, and insulation water pumps into circulation insulation water jacket layer 7 by insulation water-circulating pump 12; Temperature by temperature regulator 11 control insulation water is (35 ± 1) ℃.
Handling through this device, is 6000mg/L for chemical oxygen demand (COD) (COD) concentration, sulfate radical (SO
4 2-) concentration is the molasses alcohol waste water of 480mg/L, COD, SO
4 2-Clearance be respectively 73.4%, 61.3%, vitriol is 30.1% to the elemental sulfur transformation efficiency.
Claims (1)
1. little oxygen biological treatment device of molasses alcohol waste water that utilizes the air oxygen supply, comprise little oxygen reactor (6), temperature regulator (11), backflow bucket (21), an oxidation reduction potential control instrument (17), gas blower (18) and circulation insulation water jacket layer (7), it is characterized in that wastewater disposal basin (1) links to each other with intake pump (2), connects little oxygen reactor (6) by wastewater inlet pipe (3); Little oxygen reactor (6) top one side has a little oxygen reactor water outlet (15), links to each other with the bucket (21) that refluxes by rising pipe (16); The bucket (21) that refluxes is provided with the bucket water outlet (20) that refluxes, and the partially liq in the bucket (21) that refluxes is pumped into the mud district (4) of little oxygen reactor (6) bottom by reflux pump (25) by backflow water pipe (24); The redox potential probe (22) of oxidation reduction potential control instrument (17) inserts in the liquid of the bucket (21) that refluxes; Oxidation reduction potential control instrument (17) links to each other with gas blower (18) by electric wire, controls the switch of gas blower (18) automatically; Gas blower links to each other with aeration head (23) by blast main (19), and aeration head (23) inserts in the liquid of the bucket (21) that refluxes, and when gas blower (18) is opened, blasts oxygenating air by aeration head (23) to liquid; Little oxygen reactor (6) top has a triphase separator (13) to link to each other with biogas air outlet (14); Reactor (6) outside is with circulation insulation water jacket layer (7), an insulation water water outlet (8) is arranged at circulation insulation water jacket layer (7) top, link to each other with insulation pond (10) by attemperater (9), insulation water pumps into circulation insulation water jacket layer (7) by insulation water-circulating pump (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201647598U CN201512432U (en) | 2009-10-24 | 2009-10-24 | Molasses alcohol waste water micro-aerophilic biological processing device for utilizing air to supply oxygen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201647598U CN201512432U (en) | 2009-10-24 | 2009-10-24 | Molasses alcohol waste water micro-aerophilic biological processing device for utilizing air to supply oxygen |
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| Publication Number | Publication Date |
|---|---|
| CN201512432U true CN201512432U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201647598U Expired - Lifetime CN201512432U (en) | 2009-10-24 | 2009-10-24 | Molasses alcohol waste water micro-aerophilic biological processing device for utilizing air to supply oxygen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864268A (en) * | 2014-03-30 | 2014-06-18 | 桂林理工大学 | Biological treatment method for intensifying molasses alcohol waste liquor through modified bagasse incineration ash |
| CN104591409A (en) * | 2015-02-06 | 2015-05-06 | 哈尔滨工业大学 | Micro-aerobic biological treatment device for low-C/N-ratio manure dry-collection pig farm wastewater and method for treating pig farm wastewater |
| CN111533246A (en) * | 2020-04-20 | 2020-08-14 | 中麒赋能水务科技股份有限公司 | Synchronous denitrification accurate aeration system |
-
2009
- 2009-10-24 CN CN2009201647598U patent/CN201512432U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864268A (en) * | 2014-03-30 | 2014-06-18 | 桂林理工大学 | Biological treatment method for intensifying molasses alcohol waste liquor through modified bagasse incineration ash |
| CN104591409A (en) * | 2015-02-06 | 2015-05-06 | 哈尔滨工业大学 | Micro-aerobic biological treatment device for low-C/N-ratio manure dry-collection pig farm wastewater and method for treating pig farm wastewater |
| CN111533246A (en) * | 2020-04-20 | 2020-08-14 | 中麒赋能水务科技股份有限公司 | Synchronous denitrification accurate aeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |
|
| CX01 | Expiry of patent term |