CN203212380U - Anaerobic bioreactor for treating organic wastewater with high solid content - Google Patents

Anaerobic bioreactor for treating organic wastewater with high solid content Download PDF

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Publication number
CN203212380U
CN203212380U CN2013201912693U CN201320191269U CN203212380U CN 203212380 U CN203212380 U CN 203212380U CN 2013201912693 U CN2013201912693 U CN 2013201912693U CN 201320191269 U CN201320191269 U CN 201320191269U CN 203212380 U CN203212380 U CN 203212380U
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reactor
jar
solid
gas
liquid
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CN2013201912693U
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Inventor
陈冠益
刘刚
杜凤梅
颜蓓蓓
刘星飞
高超
张铭栋
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Tianjin University
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Tianjin University
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    • Y02W10/12

Abstract

The utility model discloses an anaerobic bioreactor for treating organic wastewater with high solid content and an operation method of the anaerobic bioreactor. The bioreactor comprises an outer tank liquid reactor and an inner tank solid reactor which is arranged inside the outer tank liquid reactor, wherein a gas reflux circulation system is added onto the outer tank liquid reactor, so that the gas circulation device can be directly introduced into the inner tank solid reactor to achieve the aim of pneumatically stirring solid. Compared with the prior art, the internal solid waste reactor and the external liquid reactor are in combined arrangement, the whole device is compact in structure, solid waste is digested inside the internal reactor to effectively prevent occurrence of pipeline blockage, and substances in the internal solid reactor can be in a fluidizing state by virtue of double stirring of gas reflux circulating stirring and hydraulic impacting, so that precipitation of soluble substances in the solid can be effectively improved.

Description

A kind of anaerobic biological reactor of handling highly filled organic waste water
Technical field
The utility model belongs to field of environment protection, more particularly, relates to a kind of anaerobic digestion reaction unit and operation method thereof of highly filled organic waste water.
Background technology
The anaerobe digestion method is the common method of handling high concentrated organic wastewater, and common anaerobic biological reactor mainly comprises with anaerobic digester, anaerobism contact tank being the first-generation reactor of representative at present; With anaerobic filter, up-flow anaerobic sludge blanket, fluidized-bed are the s-generation reactor of representative; With with anaerobic grain sludge bed, anaerobism internal recycle and anaerobic baffled board-like be the third generation reactor of representative.These anaerobic biological reactors are improving the anaerobic sludge life condition, and the chemical oxygen demand (COD) clearance aspect that improves sewage all has certain effect.Be particularly useful for lower (the being lower than 3%) treatment of Organic Wastewater of solids content, but solid organic matters content is very high in the organic waste water of some processing of farm products, food service industry and catering industry, usually can reach more than 15%, adopt traditional anaerobic biological reactor easily to cause solid matter blocking pipe, scum silica frost to suppress problems such as aerogenesis.Common way is to filter to remove solid organic matters, and then with solid waste landfill or low value-added utilization, and waste liquid enters conventional bioreactor for treatment.The conversion unit of entire treatment technology is various, running cost is high, has also lost the organism of great amount of soluble in the solid waste simultaneously, is not only a kind of great waste, also environment has been caused potential threat.Though prior art is also mentioned solid and Liquid wastes are separated digestion in same reactor, but what they adopted is that heat exchange is carried out in the separation of solid, liquid jar, there is not sufficient Medium Exchange, can't make the effective stripping of dissolved organic matter in the solid waste, should need after the reaction a large amount of solid waste are handled.
The utility model content
The purpose of this utility model is in order to solve when handling the high organic waste water of solids content, to adopt and separate low, the equipment complicated problems of the method efficient of dealing with separately again behind the solid, liquid refuse fully.Further purpose of the present utility model is that too high solids content can cause conventional anaerobic biological reactor obstruction, the too much problem of scum silica frost in the treatment of Organic Wastewater in order to solve, a kind of upflow type anaerobic biological reaction apparatus of handling highly filled organic waste water is provided, the backflow of the water impact of jar and gas makes inner core form fluidized-bed outside a kind of the utilization specifically, thereby promotes method and device thereof that up-flow anaerobic sludge blanket is handled highly filled organic waste water ability.
Technical purpose of the present utility model is achieved by following technical proposals:
A kind of anaerobic biological reactor of handling highly filled organic waste water comprises outer jar liquid reactor and interior jar of solid reactor.
Described outer jar liquid reactor is fixedlyed connected with interior jar of solid reactor, and it is fixedly connected for example to adopt Type of Welding to carry out; A described outer jar of liquid reactor is cylindric, can adopt the structure of up-flow anaerobic sludge blanket, and its closed bottom is chosen as cylindric bottom surface or coniform bottom surface, and its open top also is set with convex at inner periphery, and described convex is in order to the support set gas hood; Jar solid reactor is selected cone shape in described, its height adapts with the diameter of described outer jar liquid reactor, its two ends contact with the inner peripheral surface of described outer jar liquid reactor respectively, with the purpose that realizes both are achieved a fixed connection, even distribution exchange hole on the surface of jar solid reactor in described in order to realize liquid, exchange gas, impacts liquid in jar liquid enters jar outward, and take away soluble fractions in the solid, but also supplied gas turnover; A jar solid reactor is provided with opening for feed and discharge port in described.
The top of described gas skirt links to each other with first branch road of the gas backstreaming recycle system, after second branch road of described first branch road and gas reflux cycle system gathers, links to each other with the main line of the gas backstreaming recycle system; Second branch road of the described gas backstreaming recycle system is provided with pressure regulator valve, is used for regulating according to the pipeline gaseous tension, so that the gas of preparation is derived by second branch road; The main line of the described gas backstreaming recycle system passes the wall of outer jar liquid reactor, and in the internal space of jar solid reactor, the gas that is used for generating is led by the gas backstreaming recycle system and is back to interior jar solid reactor in stretching into.
Described outer jar of liquid reactor outer setting has the hydraulic system (pipeline) that is attached thereto, and its pipeline is provided with for the flow control valve of adjusting flow.
The interior diameter of described outer jar liquid reactor and a jar high ratio are 1:3, top arc diameter and the bottom arc diameter of jar solid reactor are (1-2) in described: 5, the exchange hole aperture 3cm of jar solid reactor in described, the feed port of described interior jar solid reactor and the aperture of discharge hole are respectively 30cm.
When utilizing the high organic waste water of reactor for treatment solids content of the present utility model, at first just solid-liquid composting and active sludge are pumped in the interior jar solid reactor 6 by opening for feed 1 according to the ratio of mass ratio 7:3, outwards add water in jar liquid reactor 7 simultaneously, not have gas skirt; Heating makes the interior temperature of tank body remain on 37 ℃, carry out the initial reaction (residual oxygen of volume in the aerobic bacteria digestion tank body, do not produce biogas), owing to add water the realization water seal in the system, the oxygen of system outside can't enter, environment forms anaerobic environment gradually in the whole reactor, and anerobe begins to take place effect.
Then through entering the stage of stable development after the reaction starting period, (anerobe digests the gas that organic waste water produces to the gas of output at this moment, major ingredient is methane and carbonic acid gas, and wherein the volumn concentration of carbonic acid gas is 30-50%) can carry out gas stirring to solid refuse in jar solid reactor 6 in turning back to through the first branch road 4-1 of the gas backstreaming recycle system 4 and main line 4-3.When the tolerance of producing is excessive, can pass through pressure regulator valve door 8, the gas that produces is discharged this device by the second branch road 4-2 or be stored in other accumulator unit.Simultaneously the exhalant region of outer jar of liquid reactor 7 upper ends can circulate by waterpower and 2 return outer jar 7 bottom earlier, a jar solid reactor carried out liquid agitation to the changing food waste solid in exchange hole by interior jar solid reactor 6 surfaces entered again, form fluidized-bed in jar reactor in gas, two kinds of stirrings of liquid act on simultaneously, can strengthen the dissolution rate of soluble fractions in the solid phase.
Reactor of the present utility model can reduce the solid refuse quantity discharged of reaction back more than 30%.Simultaneously because the obstruction of interior jar of tank skin, the insoluble solid refuse can't suspend or sink to outer jar top or bottom, has prevented that barrier gas from discharging and the generation of line clogging phenomenon, the reaction times that can prolong anaerobic treatment in batches with reload the time.Reaction finishes back insoluble solid rubbish and pumps tank body by discharge port 3.
Compared with prior art, the utlity model has following beneficial effect: (1) is adopted internal solids refuse reactor and outside liquid reactor to close and is put, and whole apparatus structure compactness, has saved floor space and running cost; (2) solid waste digests in internal reactor, has effectively avoided solid waste with producing the generation that gas skirt and pipe phenomenon thereof are stopped up in the gas rising; (3) the dual stirring of stirring with water impact by gas backstreaming circulation makes the material in the internal solids reactor be in fluidized state, has effectively improved separating out of soluble substance in the solid; (4) part insoluble solid scum silica frost is fixed in the internal-response jar, has prevented that effectively the gas rising phenomenon in the block liquid retort from occurring.
Description of drawings
Fig. 1 is the anaerobic biological reactor structural representation of the highly filled organic waste water of processing of the present utility model, wherein 1 is the opening for feed of interior jar of solid reactor, 2 is hydraulic system (pipeline), 3 is the discharge port of interior jar of solid reactor, 4 are the gas backstreaming recycle system, 4-1 is first branch road of the gas backstreaming recycle system, 4-2 is second branch road of the gas backstreaming recycle system, and 4-3 is the main line of the gas backstreaming recycle system, and 5 is exchange hole, 6 is interior jar of solid reactor, 7 is outer jar liquid reactor, and 8 is pressure regulator valve, and 9 is flow control valve, 10 is gas skirt, and 11 is convex.
Embodiment
Further specify the technical solution of the utility model below in conjunction with specific embodiment.
As shown in drawings, a kind of anaerobic biological reactor of handling highly filled organic waste water comprises outer jar liquid reactor 7 and interior jar of solid reactor 6.Building useful volume according to the utility model is 6m 3Small-sized anaerobic reactor: inside and outsidely jar all adopt the acid resistance steel to make, outer jar interior diameter is 1m, jar is high to be 3m, a described outer jar liquid reactor is cylindric, its closed bottom, select coniform bottom surface, its open top also fixedly installs the convex 11 that is useful on support set gas hood 10 at inner periphery; Interior jar solid reactor is selected cone shape, its height adapts with the diameter of described outer jar liquid reactor, cone is high to be that 1m, awl bottom arc diameter are 0.5m, the top arc diameter is 0.2m, even distribution exchange hole 5(aperture 3cm on the surface of jar solid reactor in described), and be provided with opening for feed 1(aperture 30cm) and discharge port 3(aperture 30cm).The two ends of interior jar solid reactor are weldingly connected with the described inner peripheral surface of jar liquid reactor outward respectively.
The top of described gas skirt 10 links to each other with the first branch road 4-1 of the gas backstreaming recycle system 4, after the second branch road 4-2 of the described first branch road 4-1 and gas reflux cycle system gathers, links to each other with the main line 4-3 of the gas backstreaming recycle system; The second branch road 4-2 of the described gas backstreaming recycle system is provided with pressure regulator valve 8, is used for regulating according to the pipeline gaseous tension, so that the gas of preparation is derived by second branch road; The main line 4-3 of the described gas backstreaming recycle system passes the wall of outer jar liquid reactor, and in the internal space of jar solid reactor, the gas that is used for generating is led by the gas backstreaming recycle system and is back to interior jar solid reactor in stretching into.Described outer jar of liquid reactor outer setting has the hydraulic system (pipeline) 2 that is attached thereto, and its pipeline is provided with for the flow control valve 9 of adjusting flow.
Utilize above-mentioned reactor that the changing food waste of water ratio 80% is carried out anaerobic treatment, in at first solid-liquid composting and active sludge being pumped into by opening for feed 1 according to the ratio of mass ratio 7:3 in jar solid reactor 6, outwards add water in jar liquid reactor 7 simultaneously, the position that dotted line marks in figure was not there to be gas skirt; Heating makes the interior temperature of tank body remain on 37 ℃, carries out initial reaction (aerobic bacteria consumes oxygen, does not produce biogas), owing to add water the realization water seal in the system, the oxygen of system outside can't enter, and environment forms anaerobic environment gradually in the whole reactor, and anerobe begins to take place effect.
Through the reaction starting period of 3 days (24 * 3 hours), reaction enters the stage of stable development, (anerobe digests the gas that organic waste water produces to the gas of output at this moment, major ingredient is methane and carbonic acid gas, and wherein the volumn concentration of carbonic acid gas is 30-50%) can carry out gas stirring to solid refuse in jar solid reactor 6 in turning back to through the first branch road 4-1 of the gas backstreaming recycle system 4 and main line 4-3; When the tolerance of producing is excessive, can pass through pressure regulator valve door 8, the gas that produces is discharged this device by the second branch road 4-2 or be stored in other accumulator unit.Simultaneously the exhalant region of outer jar of jar liquid reactor 7 upper ends can circulate by waterpower and 2 return outer jar 7 bottom earlier, a jar solid reactor carried out liquid agitation to the changing food waste solid in exchange hole by interior jar solid reactor 6 surfaces entered again, form fluidized-bed in jar reactor in gas, two kinds of stirrings of liquid act on simultaneously, can strengthen the dissolution rate of soluble fractions in the solid phase.Reactor of the present utility model can reduce the solid refuse quantity discharged of reaction back more than 30%.Simultaneously because the obstruction of interior jar of tank skin, the insoluble solid refuse can't suspend or sink to outer jar top or bottom, has prevented that barrier gas from discharging and the generation of line clogging phenomenon, the reaction times that can prolong anaerobic treatment in batches with reload the time.Reaction finishes back insoluble solid rubbish and pumps tank body by discharge port 3.
More than the utility model has been done exemplary description; should be noted that; under the situation that does not break away from core of the present utility model, the replacement that is equal to that any simple distortion, modification or other those skilled in the art can not spend creative work all falls into protection domain of the present utility model.

Claims (5)

1. anaerobic biological reactor of handling highly filled organic waste water, comprise outer jar liquid reactor and interior jar of solid reactor, it is characterized in that, described outer jar liquid reactor is fixedlyed connected with interior jar of solid reactor, a described outer jar liquid reactor is cylindric, its closed bottom, its open top also is set with convex in order to the support set gas hood at inner periphery; Jar solid reactor is selected cone shape in described, and its height adapts with the diameter of described outer jar liquid reactor, and its two ends contact with the inner peripheral surface of described outer jar liquid reactor respectively; Even distribution exchange hole on the surface of jar solid reactor in described, and be provided with opening for feed and discharge port;
The top of described gas skirt links to each other with first branch road of the gas backstreaming recycle system, after second branch road of described first branch road and gas reflux cycle system gathers, links to each other with the main line of the gas backstreaming recycle system; Second branch road of the described gas backstreaming recycle system is provided with pressure regulator valve; The main line of the described gas backstreaming recycle system passes the wall of outer jar liquid reactor, stretches in the internal space of interior jar solid reactor;
Described outer jar of liquid reactor outer setting has the hydraulic system that is attached thereto, and its pipeline is provided with for the flow control valve of adjusting flow.
2. a kind of anaerobic biological reactor of handling highly filled organic waste water according to claim 1 is characterized in that, the interior diameter of described outer jar liquid reactor and a jar high ratio are 1:3.
3. a kind of anaerobic biological reactor of handling highly filled organic waste water according to claim 1, it is characterized in that, top arc diameter and the bottom arc diameter of jar solid reactor are (1-2) in described: 5, the exchange hole aperture 3cm of jar solid reactor in described, the feed port of described interior jar solid reactor and the aperture of discharge hole are respectively 30cm.
4. a kind of anaerobic biological reactor of handling highly filled organic waste water according to claim 1 is characterized in that, described outer jar liquid reactor adopts Type of Welding to fixedly connected with interior jar of solid reactor.
5. a kind of anaerobic biological reactor of handling highly filled organic waste water according to claim 1 is characterized in that, described outer jar of liquid reactor bottom is cylindric bottom surface or coniform bottom surface.
CN2013201912693U 2013-04-16 2013-04-16 Anaerobic bioreactor for treating organic wastewater with high solid content Withdrawn - After Issue CN203212380U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103214089A (en) * 2013-04-16 2013-07-24 天津大学 Anaerobic bioreactor for treating organic waste water with high solid content and operating method of anaerobic bioreactor
CN105502664A (en) * 2016-02-23 2016-04-20 太原理工大学 Device using AB-ASBR reactors to start anaerobic ammonia oxidation
CN105541051A (en) * 2016-02-23 2016-05-04 太原理工大学 Process for starting anaerobic ammonia oxidation through AB-ASBRs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103214089A (en) * 2013-04-16 2013-07-24 天津大学 Anaerobic bioreactor for treating organic waste water with high solid content and operating method of anaerobic bioreactor
CN103214089B (en) * 2013-04-16 2014-07-02 天津大学 Anaerobic bioreactor for treating organic waste water with high solid content and operating method of anaerobic bioreactor
CN105502664A (en) * 2016-02-23 2016-04-20 太原理工大学 Device using AB-ASBR reactors to start anaerobic ammonia oxidation
CN105541051A (en) * 2016-02-23 2016-05-04 太原理工大学 Process for starting anaerobic ammonia oxidation through AB-ASBRs
CN105502664B (en) * 2016-02-23 2017-11-07 太原理工大学 A kind of device of AB ASBR reactor start-up Anammoxs
CN105541051B (en) * 2016-02-23 2017-11-07 太原理工大学 A kind of technique of AB ASBR reactor start-up Anammoxs

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Granted publication date: 20130925

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