CN104016538A - Biofilm recirculation reactor - Google Patents
Biofilm recirculation reactor Download PDFInfo
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- CN104016538A CN104016538A CN201310065704.2A CN201310065704A CN104016538A CN 104016538 A CN104016538 A CN 104016538A CN 201310065704 A CN201310065704 A CN 201310065704A CN 104016538 A CN104016538 A CN 104016538A
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- reactor
- biofilm
- water
- biological filter
- aeration
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Abstract
The invention discloses a biofilm recirculation reactor. Two biofilm reactors are combined to form a closed loop circuit. A contact oxidator and a biofilter form a main body of a sewage treater; the contact oxidator is in an up-flow form; water inflows from the bottom and the bottom is aerated; a biofilter of the second reactor is in a downflow inflow form and is not aerated; a water outlet is formed in the biofilter. By using a reflux pump, treating fluid flows in a cycle. Thus, the overall system is a biofilm delay aeration treatment device.
Description
Technical field
The present invention relates to a kind of biological sewage treatment device, specifically the sewage-treating reactor (technology) of a kind of contact oxidation method and biological filter combination.
Background technology
Biomembrance process and activated sludge process are two large important technologies of modern saprobia film processing.Practice shows, technology of biological membrane has advantages of that some are unique, as efficient stable, anti impulsion load, without sludge bulking problem and denitrogenation dephosphorizing etc.And contact oxidation method taking flexible material as filler is one that wherein gives prominence to, it is large that it has biomass, and processing power is strong, and flexible operation is easy to the advantages such as management, is extensively subject to investigator's attention; Biological filter treatment effect is stable, and energy-conservation is classics in bio membrane treatment.
Also Shortcomings of existing biofilm reactor: show that microbial film is deep, high thereby DO requires, aeration rate is large, thereby power consumption more; Biological filter organic loading is lower, is easy to the defects such as obstruction.
Summary of the invention
High for overcoming existing biofilms reactor DO requirement, aeration rate is large, a difficult problem for power consumption, and the present invention uses a kind of contact oxidation device of novel soft-filler and combines biological filter, forms two stage biological membrane reactor.This scheme fully combines the strong point in soft-filler contact oxidation reactor and biotinylated biomolecule filter tank, effectively overcomes the deficiency of traditional biological membrane reactor, obviously improves reactor sewage treatment capacity.
The technical solution adopted for the present invention to solve the technical problems is: selecting the contact oxidation device of the soft-filler of lightweight, efficient, inexpensive, long service life is A reactor, and the biological filter of ball-type plastic filler is second reactor; The water inlet of contact oxidation device flow lifting type aeration, second reactor biological filter is for falling streaming water inlet, not aeration.Use reflux pump, treatment solution is circulated repeatedly at two inside reactors.Sewage inlet is in catalytic oxidation system, and water outlet is in bottom, biological filter.
The invention has the beneficial effects as follows: first the contact oxidation reactor of soft-filler is of value to biomembranous enrichment, there is larger processing power; Secondly, biological filter, as second reactor, connects biomembranous top-end water-outlet, and itself does not consume energy, and sewage is done to secondary treatment, intensive treatment usefulness.The 3rd, second reactor greatly extends dwell time of sewage and has the condition of denitrogenation dephosphorizing with anaerobism and oxygen-starved area.Process water internal recycling, extended aeration, improves treatment effect greatly, and improves device water quality, and the adaptive faculty of the water yield reduces sludge quantity.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is contrive equipment microbial film recirculation reactor structure iron.
?1 contact oxidation device in Fig. 1,2 biological filters, 3 inlet chests, 4 intake pumps, 5 intake pump under meters, 6 aeration pump under meters, 7 aeration pumps, 8 biological filter water tanks, 9 water flow meters, 10 reflux pumps
Embodiment
2 identical reactors of size all adopt synthetic glass to process, and each height for reactor is 1600mm, and effectively packing height is 2000mm, internal diameter 200mm.First biofilm reactor is contact oxidation device, the microbial film of the built-in lightweight of glass column, fiber, soft-filler.Contact oxidation device is from bottom aeration, water inlet, back flushing, upper end water outlet.The second reactor is biological filter, and adopting diameter is 3～5cm ball-type plastic filler, and bottom is the gravel supporting layer that 200mm is high, and the effective packed space of each reactor is 60L.
By said apparatus, for the treatment of sanitary sewage, in the time of combination coupling, the water outlet of the first reactor (contact oxidation device) is intake as the second reactor (biological filter).Biological filter water tank connection water outlet and reflux pump, large biological filter water outlet portion is refilled contact oxidation device by reflux pump, makes delay process.
The suitable operating mode (gas-water ratio: 4: 1, HRT=12h) adopting can, in higher organic concentration (BOD=300～600mg/L) situation, obtain desirable treatment effect, COD and NH
3-N clearance is stabilized on 90%, 80%.
Claims (3)
1. the technology of the present invention feature is: the coupling of two-stage biological membrane reactor; A reactor water inlet aeration, second reactor outlet water at tail end, not aeration, processes water and circulates at two inside reactors.
2.
?based on claim 1, this reactive system uses reflux pump, and at two reactor internal recycle repeatedly, water outlet is at biological filter end for treatment solution.
3. based on claim 1, one-level biofilm reactor is contact reactor, uses soft-filler; Second reactor, for falling streaming biological filter, uses baton round filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065704.2A CN104016538A (en) | 2013-03-02 | 2013-03-02 | Biofilm recirculation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065704.2A CN104016538A (en) | 2013-03-02 | 2013-03-02 | Biofilm recirculation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104016538A true CN104016538A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310065704.2A Pending CN104016538A (en) | 2013-03-02 | 2013-03-02 | Biofilm recirculation reactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104016538A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2430440Y (en) * | 2000-07-14 | 2001-05-16 | 胡天军 | Lift flow biological denitrification filter pool |
| CN1686863A (en) * | 2005-04-05 | 2005-10-26 | 太原理工大学 | Technique of biological treatment for wastewater of carbonization |
| CN101817583A (en) * | 2009-02-20 | 2010-09-01 | 重庆文理学院 | Wall-hanging batch biofilm reactor |
-
2013
- 2013-03-02 CN CN201310065704.2A patent/CN104016538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2430440Y (en) * | 2000-07-14 | 2001-05-16 | 胡天军 | Lift flow biological denitrification filter pool |
| CN1686863A (en) * | 2005-04-05 | 2005-10-26 | 太原理工大学 | Technique of biological treatment for wastewater of carbonization |
| CN101817583A (en) * | 2009-02-20 | 2010-09-01 | 重庆文理学院 | Wall-hanging batch biofilm reactor |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140903 |