CN205892863U - A anaerobic reactor for high concentration organic wastewater - Google Patents

A anaerobic reactor for high concentration organic wastewater Download PDF

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Publication number
CN205892863U
CN205892863U CN201620817811.5U CN201620817811U CN205892863U CN 205892863 U CN205892863 U CN 205892863U CN 201620817811 U CN201620817811 U CN 201620817811U CN 205892863 U CN205892863 U CN 205892863U
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riser
reactor
organic wastewater
phase separator
concentrated organic
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CN201620817811.5U
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戴月珍
史云祥
陈坤杰
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Nanjing Good Environmental Technology Co Ltd
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Nanjing Good Environmental Technology Co Ltd
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Abstract

The utility model discloses an anaerobic reactor for high concentration organic wastewater, being connected with the reactor casing of marsh gas outlet duct including the top through vapour and liquid separator, having been set gradually a three -phase separator, the 2nd three -phase separator and gone out the mill weir by supreme down in the reactor casing, second riser and the switch -on of the 2nd three -phase separator are passed through to vapour and liquid separator's bottom, are provided with the first riser of putting through with three -phase separator bottom in the second riser, are provided with the back flow in the first riser, the utility model discloses in passing through inlet tube and water -locator entering reactor casing with waste water, mix with the inner loop mud mixde liquor who comes from the back flow, dilute and the homogeneity intaking to reducing impact load and the adverse effect of harmful substance to the reactor, the utility model discloses a multilayer sleeve pipe form, with first riser, second riser and back flow coaxial arrangement in reactor center, simple structure, occupation space is few.

Description

A kind of anaerobic reactor for high concentrated organic wastewater process
Technical field
This utility model belongs to technical field for the treatment of of organic waste, processes for high concentrated organic wastewater particularly to a kind of Anaerobic reactor.
Background technology
High concentrated organic wastewater, refers to that waste water cod is more than the waste water of 1000mg/l, mainly in food, chemical industry, fermentation, doctor Produce in the production process of the industries such as medicine, papermaking, process hides.Wherein, organic contamination be cause water quality to degenerate, black, smelly master Want factor, this kind of waste water such as not treated direct discharge, will cause serious harm to environment.High concentrated organic wastewater is to environment Harm, be mainly manifested in aerobism contamination hazard, consume the dissolved oxygen in water, the growth and breeding of harm aquatic organism, disturb water Body self-purification capacity, in addition, the noxious substance entering water body is not easy to be degraded, can be enriched with by food chain and enter human body, harm Health.
At present, high concentration wastewater treatment method mainly has method of chemical treatment, materialization treatment process and biological treatment.Wherein, Biological treatment becomes the main method of current wastewater treatment because its technology maturity height, low cost, range are wide.Raw Thing facture is divided into Aerobic Process for Treatment and anaerobic treatment again, and anaerobic treatment is applied to process high concentrated organic wastewater, not only consumes energy low, And biogas energy can be produced while Organic substance anaerobic degradation, not only there is preferable disposal ability, and load High, produce multiple advantages such as the few, impact resistance of mud and be widely used.The anaerobic treatment of waste water mainly uses detesting of inside reactor Oxygen bacterium is through hydrolysis, the organic pollution producing in the stage degrading waste waters such as acid and methane phase.
At present, the anaerobic biological reactor of use in waste water treatment had evolved to for the 3rd generation, wherein public with Dutch paques Department's interior circulation (ic) anaerobic reactor that research and development are released in the eighties in 20th century is Typical Representative.Ic anaerobic reactor leads to Cross and cod volumetric loading is significantly improved using interior circulation technology, high methane quantity can be produced.Due to the effect of interior circulation liquid, Mud is in the state of expanded fluid all the time, can achieve the good contact between muddy water, has enhanced mass transfer effect.There is water The power time of staying (hrt) is short, ratio of height to diameter is big, floor space is little, discomposing effect is good, floor space is little, small investment the advantages of, generation The table developing direction of organic wastewater anaerobic treatment equipment.
Utility model content
Utility model purpose: this utility model provides a kind of anaerobic reactor for high concentrated organic wastewater process, with Solve the problems of the prior art.
Technical scheme: for achieving the above object, the technical solution adopted in the utility model is:
A kind of anaerobic reactor for high concentrated organic wastewater process, is connected with by gas-liquid separator 2 including top The reactor shell 3 of biogas escape pipe 1, the sidewall bottom of reactor shell 3 is provided with water inlet pipe 10 and sludge outlet 15, described It is disposed with the first three phase separator 9, the second three phase separator 6 and effluent weir 4 from the bottom to top in reactor shell 3, described The bottom of gas-liquid separator 2 is connected with the second three phase separator 6 by the second riser 5, is provided with described second riser 5 The first riser 8 connected with the first three phase separator 9 bottom, is provided with return duct 12, positioned at effluent weir in the first riser 8 It is connected with outlet pipe 11 on reactor shell 3 side wall at 4.
Further, described water inlet pipe 10 stretches into reactor shell 3, and connects water-locator 14 in reactor shell 3.
Further, described second riser 5 is fixed on the inwall of the first riser 8 by support, and return duct 12 leads to Cross support to be fixed on the inwall of the second riser 5.
Further, the height of described second riser 5, the first riser 8 and return duct 12 top and bottom is all successively Reduce.
Further, described first riser 8 head tube open height is less than the second riser 5 top mouth of pipe 2-20cm, institute State return duct 12 head tube open height and be less than the first riser 8 top mouth of pipe 2-20cm.
Further, described return duct 12 bottom stretches out in the bottom of the first three phase separator 9, and is located on water-locator 14 Side.
Further, the diameter of described second riser 5, the first riser 8 and return duct 12 reduces successively.Described backflow The diameter of pipe 12 is less than the diameter of the first riser 8, and the diameter of the first riser 8 is less than the diameter of the second riser 5.
Further, the medial wall of reactor shell 3 of described first three phase separator 9 bottom is provided with the first sealing gland 13.
Further, the medial wall of reactor shell 3 of described second three phase separator 6 bottom is provided with the second sealing gland 7.
Further, the bottom of described reactor shell 3 is the first anaerobic zone i to the first three phase separator 9, first It is the second anaerobic zone ii between three phase separator 9 and the second three phase separator 6.
Beneficial effect: compared with prior art, this utility model has the advantage that
This utility model, by the waste water through initial treatment, is entered in reactor enclosure body by water inlet pipe, then by water-locator By inlet distribution in the mixed zone of reactor shell inner bottom part, mix with the interior circulation muddy water mixed solution from return duct, to entering Water is diluted and homogenizing, to reduce the impact load and harmful substance adverse effect to reactor;This utility model is using many Layer barrel forms, the first riser, the second riser and return duct are coaxially installed on reactor center, and structure is simple, take Space is few.
Brief description
Fig. 1 is the structural representation of prior art,
Fig. 2 is structural representation of the present utility model,
Wherein: i- first anaerobic zone, ii- second anaerobic zone, 1- biogas escape pipe, 2- gas-liquid separator, 3- reactor enclosure Body, 4- effluent weir, 5- second riser, 6- second three phase separator, 7- second sealing gland, 8- first riser, 9- first three-phase Separator, 10- water inlet pipe, 11- outlet pipe, 12- return duct, 13- first sealing gland, 14- water-locator, 15- sludge outlet.
Specific embodiment
With reference to embodiment, this utility model is further described.
As shown in figure 1, existing internal-circulation anaerobic reactor, it is that the first riser, the second riser and return duct are divided Open installation, complex structure, the space occupying in reactor.This utility model adopt multilayer sleeve form, by the first riser, Second riser and return duct are coaxially installed on reactor center, and structure is simple, occupies little space.
As shown in Fig. 2 a kind of anaerobic reactor for high concentrated organic wastewater process, pass through gas-liquid separation including top Device 2 is connected with the reactor shell 3 of biogas escape pipe 1, and the sidewall bottom of reactor shell 3 is provided with water inlet pipe 10 and mud goes out Mouth 15, is disposed with the first three phase separator 9, the second three phase separator 6 and water outlet from the bottom to top in described reactor shell 3 Weir 4, the bottom of described gas-liquid separator 2 is connected with the second three phase separator 6 by the second riser 5, described second riser 5 Inside it is provided with the first riser 8 connected with the first three phase separator 9 bottom, in the first riser 8, be provided with return duct 12, position It is connected with outlet pipe 11 on the reactor shell 3 side wall at effluent weir 4;The bottom of reactor shell 3 is to the first three phase separation It is the first anaerobic zone i between device 9, be the second anaerobic zone ii between the first three phase separator 9 and the second three phase separator 6.
Described water inlet pipe 10 stretches into reactor shell 3, and connects water-locator 14 in reactor shell 3.
The diameter of described second riser 5, the first riser 8 and return duct 12 reduces successively, described return duct 12 straight Footpath is less than the diameter of the first riser 8, and the diameter of the first riser 8 is less than the diameter of the second riser 5.Return duct 12 diameter is Little, diameter is determined according to capacity of returns, positioned at the inside, the first riser 8 is enclosed within outside return duct 12, according to the gas-liquid of lifting Flow determines diameter, and the second riser 5 diameter is maximum, is enclosed within outside the first riser 8, and the gas-liquid flow according to lifting determines straight Footpath.
Described second riser 5 is fixed on the inwall of the first riser 8 by support, and return duct 12 is fixed by support On the inwall of the second riser 5, the height of described second riser 5, the first riser 8 and return duct 12 top and bottom is equal Reduce successively;Second riser 5 is connected with gas-liquid separator 2, head tube open height highest, and the first riser 8 top mouth of pipe is high Degree is less than the second riser 5 top mouth of pipe 2-20cm, and described return duct 12 head tube open height is minimum, the return duct 12 top mouth of pipe Highly it is less than the first riser 8 top mouth of pipe 2-20cm, so that backflow enters return duct 12.
Described return duct 12 bottom stretches out in the bottom of the first three phase separator 9, and is located above water-locator 14.
It is provided with the first sealing gland 13 on the medial wall of reactor shell 3 of described first three phase separator 9 bottom;Described Second sealing gland 7 is provided with the medial wall of reactor shell 3 of two three phase separator 6 bottom.
The technological core of anaerobic internal circulation reactor is the gas stripping being formed using produced biogas in reactor so that dirt Mud granule and partially liq are realized no adding the interior circulation of outer power, thus reach improving inside reactor hydraulics, strengthening The purpose of process mass transfer.
This utility model is a kind of internal-circulation anaerobic reactor being applied to high concentrated organic wastewater process, and reactor is by mixing Close 5 parts such as area, the first anaerobic zone, the second anaerobic zone, settling zone and gas-liquid separation zone to constitute, the essential core of reactor is Internal circulation system part, is made up of one-level three phase separator, biogas-lift pipe, muddy water down-comer and gas-liquid separator etc..As Shown in Fig. 2, through the waste water of initial treatment, entered in reactor shell 3 by water inlet pipe 1, then reaction is entered by water-locator 15 The mixed zone of device bottom, is mixed with the interior circulation muddy water mixed solution from return duct 12, water inlet is diluted and homogenizing, with Reduce the impact load and harmful substance adverse effect to reactor.
Water inlet and recirculated water common promotion under, through mixing waste water and granule sludge enter the first anaerobic zone (and Claim EGSB area) carry out biochemical degradation, because this treatment region has very high volumetric loading, further, since reaction The larger ratio of height to diameter of device makes it have larger upflow velocity, make granular mud bed be in fluidized state, now solid-liquid contact fill Point, the Organic substance here in most of sewage is anaerobically digested generation biogas, and the biogas that here produces is by the first three phase separator 9 Collect, rise to gas-liquid separator 2 then along the first riser 8.Meanwhile, during biogas bubble formation, to liquid Do expansion work and produce gas stripping so that the muddy water mixed solution volume at this increases, density reduces, in density contrast and biogas-lift Under effect, mixed liquor also rises in gas-liquid separator 2 along the first riser 8 with biogas.In gas-liquid separator 2, by In density contrast, produce gas-liquid separation, biogas is discharged from biogas escape pipe 1.Now muddy water mixed solution density increase, density contrast with In the presence of gravity, it is back to mixed zone through return duct 12, after being sufficiently mixed again with the granule sludge of bottom and water inlet Continue to rise, realize an interior circulation.The Organic substance that small part is not anaerobically digested in the first anaerobic zone is automatically into second Anaerobic reaction area continues anaerobic digestion and simultaneously produces biogas, and this part biogas is collected by the second three phase separator 6, then along the Two risers 5 rise to gas-liquid separator 2.In gas-liquid separator 2, this part biogas reaches along the second riser 5 with equally The mixed liquor of gas-liquid separator 2 separates, and equally discharges from biogas escape pipe 1.Mixed liquor is equally back to mixing through return duct 12 Area, is continued after being sufficiently mixed with the granule sludge of bottom and water inlet to rise, enters next interior circulation.Through the first anaerobism The wastewater supernatant fluid that area and the second anaerobic zone were processed, is entered effluent weir 4, then is flowed out by outlet pipe 11.
The above be only preferred implementation of the present utility model it should be pointed out that: for the common skill of the art For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims (9)

1. a kind of anaerobic reactor for high concentrated organic wastewater process it is characterised in that: include top pass through gas-liquid separation Device (2) is connected with the reactor shell (3) of biogas escape pipe (1), and the sidewall bottom of reactor shell (3) is provided with water inlet pipe (10) and sludge outlet (15), be disposed with from the bottom to top in described reactor shell (3) the first three phase separator (9), Two three phase separators (6) and effluent weir (4), the second riser (5) and the second three-phase are passed through in the bottom of described gas-liquid separator (2) Separator (6) is connected, and is provided with the first lifting connected with the first three phase separator (9) bottom in described second riser (5) Pipe (8), is provided with return duct (12), connects on reactor shell (3) the side wall at effluent weir (4) place in the first riser (8) It is connected to outlet pipe (11).
2. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 1 it is characterised in that: institute State water inlet pipe (10) and stretch into reactor shell (3), and connect water-locator (14) in reactor shell (3).
3. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 1 it is characterised in that: institute State the second riser (5) to be fixed on the inwall of the first riser (8) by support, return duct (12) is fixed on by support On the inwall of two risers (5).
4. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 3 it is characterised in that: institute The height stating the second riser (5), the first riser (8) and return duct (12) top and bottom all reduces successively.
5. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 4 it is characterised in that: institute State the first riser (8) head tube open height and be less than the second riser (5) top mouth of pipe 2-20cm, described return duct (12) top Mouth of pipe height is less than the first riser (8) top mouth of pipe 2-20cm.
6. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 2 it is characterised in that: institute State the bottom that return duct (12) bottom stretches out in the first three phase separator (9), and be located above water-locator (14).
7. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 1 it is characterised in that: institute The diameter stating the second riser (5), the first riser (8) and return duct (12) reduces successively.
8. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 1 it is characterised in that: institute State and the first sealing gland (13) is provided with the medial wall of reactor shell (3) of the first three phase separator (9) bottom.
9. a kind of anaerobic reactor for high concentrated organic wastewater process according to claim 1 it is characterised in that: institute State and the second sealing gland (7) is provided with the medial wall of reactor shell (3) of the second three phase separator (6) bottom.
CN201620817811.5U 2016-08-01 2016-08-01 A anaerobic reactor for high concentration organic wastewater Active CN205892863U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112777737A (en) * 2020-12-22 2021-05-11 华中科技大学 Device for preventing scum incrustation of anaerobic reactor
CN113636660A (en) * 2021-08-03 2021-11-12 华南理工大学 Corridor type aeration tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112777737A (en) * 2020-12-22 2021-05-11 华中科技大学 Device for preventing scum incrustation of anaerobic reactor
CN112777737B (en) * 2020-12-22 2022-06-07 华中科技大学 Device for preventing scum of anaerobic reactor from crusting
CN113636660A (en) * 2021-08-03 2021-11-12 华南理工大学 Corridor type aeration tank

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