CN107098469A - A kind of anaerobic reactor - Google Patents
A kind of anaerobic reactor Download PDFInfo
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- CN107098469A CN107098469A CN201710432251.0A CN201710432251A CN107098469A CN 107098469 A CN107098469 A CN 107098469A CN 201710432251 A CN201710432251 A CN 201710432251A CN 107098469 A CN107098469 A CN 107098469A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000012528 membrane Substances 0.000 claims abstract description 88
- 239000011229 interlayer Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000005273 aeration Methods 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 27
- 238000000855 fermentation Methods 0.000 abstract description 9
- 230000004151 fermentation Effects 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 20
- 244000005700 microbiome Species 0.000 description 14
- 239000000203 mixture Substances 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 7
- 239000010802 sludge Substances 0.000 description 7
- 238000004065 wastewater treatment Methods 0.000 description 6
- 239000000945 filler Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000001471 micro-filtration Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention belongs to anaerobic waste water fermentation arts, more particularly to a kind of anaerobic reactor, it includes cylinder (18), reactor cap (24), water-bath interlayer (19), fixed packed bed (7) and Flat Membrane (4), a pair of water-bath interlayers (19) are symmetrically arranged in cylinder (18) inwall both sides, Flat Membrane (4) is vertically disposed between the pair of water-bath interlayer (19) in cylinder (18), the both sides of planar film (4) are equipped with baffle plate (20) in parallel, the baffle plate (20) of Flat Membrane (4) both sides forms space with Flat Membrane (4) respectively；Water output duct (13) is connected with film faucet (14), and liquid pump (16) is set on water output duct (13)；Diffuser (17) is arranged on (18) bottom of cylinder, provided with aeration loop (3) between reactor cap (24) and diffuser (17), aeration loop (3) is provided with air pump (1)；In cylinder (18) inside, the top of Flat Membrane (4), fixed packed bed (7) is set.
Description
Technical Field
The invention belongs to the field of anaerobic fermentation of wastewater, and particularly relates to an anaerobic reactor.
Background
Along with the deterioration of the water environment in China, higher requirements are put forward for the treatment of various waste water. The high-concentration organic wastewater has large pollution degree to environmental water and high treatment difficulty, and is one of the problems in the current environmental protection research field. Anaerobic biological treatment technology is widely used as an effective wastewater treatment mode, however, the existing anaerobic biological process technology has the defects of low microbial biomass caused by slow microbial growth, low reactor load and poor tolerance, and is not beneficial to high efficiency and continuous stability of industrial production.
Disclosure of Invention
The invention aims to provide an anaerobic reactor which can delay the pollution of an anaerobic membrane, reduce the energy consumption of anaerobic fermentation, control the rising of reactant foam and realize the high-efficiency anaerobic fermentation and short-flow process of high-concentration organic wastes.
The purpose of the invention is realized by the following technical scheme:
an anaerobic reactor comprises a cylinder 18 and a reactor cover 24, wherein the cylinder 18 is of a cuboid structure, the reactor cover 24 is arranged at the top of the cylinder 18, the reactor also comprises a water bath interlayer 19, a fixed packed bed 7 and a flat membrane 4, wherein,
the pair of water bath interlayers 19 are symmetrically arranged at two sides of the inner wall of the cylinder 18, and the upper part and the lower part of the water bath interlayer 19 are respectively provided with a water bath water outlet 12 and a water bath water inlet 2;
the flat membrane 4 is provided with a membrane water outlet nozzle 14, the flat membrane 4 is vertically arranged between the pair of water bath interlayers 19 in the cylinder 18, the flat membrane 4 is parallel to the water bath interlayers 19, the two sides of the flat membrane 4 are respectively provided with a baffle plate 20 parallel to the flat membrane 4, the lower part of the baffle plate 20 is fixedly connected with the bottom of the cylinder 18, and the baffle plates 20 on the two sides of the flat membrane 4 respectively form spaces with the flat membrane 4;
the water outlet conduit 13 is connected with the membrane water outlet nozzle 14, and the liquid pump 16 is arranged on the water outlet conduit 13;
the reactor cover 24 is provided with an air outlet 8 and a feed inlet 10, and an air storage bag 9 is connected with the upper end of the air outlet 8;
the air dispersing pipe 17 is arranged at the bottom of the barrel 18, is parallel to the baffles 20 and is positioned between the two baffles 20;
an aeration loop 3 is arranged between the reactor cover 24 and the air diffusion pipe 17, and an air pump 1 is arranged on the aeration loop 3;
inside the cylinder 18, above the flat sheet membrane 4, a fixed packed bed 7 is arranged.
The fixed packed bed 7 comprises a packed bed support frame 22 and packing 23, a barrier strip 6 is fixed in the cylinder 18, the packed bed support frame 22 is arranged on the barrier strip 6 and is fixedly arranged in the cylinder 18, and the fixed packed bed 7 is in interference fit with the cylinder 18;
the packed bed support frame 22 is a porous closed square structure, the packing 23 is a porous soft material and a blocky structure, and the packing 23 is arranged in the packed bed support frame 22 in a string shape.
The upper part of the water bath interlayer 19 is also provided with a water pressure balance port 11, and the water pressure balance port 11 is positioned above the water bath water outlet 12.
The upper parts of the inner sides of the two baffle plates 20 are provided with fixing blocks 21, and the upper ends of the flat membrane 4 are detachably connected with the fixing blocks 21.
The filtering aperture of the membrane of the flat membrane 4 is the microfiltration aperture, and the filtering aperture is 0.2 μm.
The flat membrane 4 adopts a negative pressure liquid pumping mode, and the maximum negative pressure is-0.1 MPa.
And a membrane pressure meter 15 is also arranged on the water outlet conduit 13.
The reactor further comprises a discharge opening 5, which discharge opening 5 is arranged on the side wall of the cylinder 18 between the flat sheet membrane 4 and the fixed packed bed 7.
The invention has the beneficial effects that:
1. the anaerobic reactor is provided with the micro-filtration flat membrane capable of filtering out suspended particles, and the effluent of the anaerobic reactor does not contain suspended matters through the filtration action of the flat membrane;
2. a part of microorganisms grow on the suspended filler, so that the solid concentration in the sludge is reduced, the pollution degree of the flat membrane is greatly improved, and the service life of the flat membrane is prolonged;
3. compared with the conventional membrane bioreactor, the anaerobic reactor of the invention intercepts more anaerobic microorganisms, can treat sewage more efficiently, obtains better effluent quality and generates more biogas;
4. the fixed packed bed arranged in the anaerobic reactor can effectively prevent bubbles generated in the membrane biological reaction zone from entering a methane pipeline, and the reactor can stably run for a long time;
5. the separation of the flat membrane is carried out in situ in an anaerobic fermentation system, and the generated methane is adopted to carry out inner circulation cleaning on the flat membrane, so that the energy consumption is reduced.
The invention provides a technical scheme for arranging a flat membrane and a fixed packed bed in an anaerobic reactor at the same time, which intercepts microorganisms of an anaerobic system, improves the total biomass in the reactor and greatly shortens the retention time of wastewater treatment; meanwhile, anaerobic microorganisms selectively grow on the filler of the fixed bed, the concentration of wastewater to be treated in an anaerobic reaction zone is reduced, the formation of membrane pollution is reduced, the service time of the membrane is prolonged, the period of the membrane is shortened, and the economy is improved.
Drawings
FIG. 1 is a schematic structural view of an anaerobic reactor of the present invention, showing no baffles 20 and water bath sandwich 19;
FIG. 2 is a schematic view of the left side of the structure of FIG. 1;
FIG. 3 is a schematic top view of the fixed packed bed of the present invention;
fig. 4 is a front view of a fixed packed bed of the present invention in structural detail.
Reference numerals:
1 air pump 2 water bath water inlet 3 aeration loop
4 flat membrane 5 discharge port 6 barrier strip
7 fixed packed bed 8 gas outlet 9 gas storage bag
10 feed inlet 11 water pressure balance port 12 water bath water outlet
13 water outlet pipe 14 film water outlet nozzle 15 film pressure meter
16 liquid pump 17 air dispersing pipe 18 cylinder
19 water bath interlayer 20 baffle 21 fixed block
22 packed bed support frame 23 packing 24 reactor cover
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
As shown in fig. 1 and 2, the anaerobic reactor of the present invention comprises a cylinder 18, a reactor cover 24, a water bath interlayer 19, a fixed packed bed 7 and a flat membrane 4. Wherein,
the cylinder 18 has a rectangular parallelepiped structure.
A reactor cover 24 is provided on top of the barrel 18.
A pair of water bath interlayers 19 are symmetrically arranged on two sides of the inner wall of the cylinder 18, and the upper part and the lower part of the water bath interlayers 19 are respectively provided with a water bath water outlet 12 and a water bath water inlet 2. The hot water heated by the water bath kettle of the external equipment enters the water bath interlayer 19 from the water bath water inlet 2 and then flows out from the water bath water outlet 12 to flow circularly. The water bath interlayer 19 serves to keep the reactor warm.
The upper part of the water bath interlayer 19 is also provided with a water pressure balance port 11, and the water pressure balance port 11 is positioned above the water bath water outlet 12. The purpose of the water pressure balancing port 11 is to balance the air pressure, and to prevent the flow of water in the water bath interlayer 19 from making the air pressure inside the water bath interlayer smaller, thereby causing the internal and external air pressures to be unbalanced.
Dull and stereotyped membrane 4, for common dull and stereotyped membrane in the existing market, it includes the framework, and the framework both sides are provided with the diaphragm, form between the diaphragm of framework both sides and hold the chamber, hold the intracavity and be equipped with bearing structure, bearing structure is latticed for the diaphragm of framework both sides supports is provided with water channel on the bearing structure, and the framework top is provided with membrane faucet 14. The filtering pore diameter of the membrane sheet of the flat membrane 4 used in the present application is the microfiltration pore diameter, and the filtering pore diameter is 0.2 μm.
The flat membrane 4 is vertically arranged between the pair of water bath interlayers 19 in the cylinder 18, the flat membrane 4 is parallel to the water bath interlayers 19, the baffles 20 parallel to the flat membrane 4 are arranged on two sides of the flat membrane 4, and the lower parts of the baffles 20 are fixedly connected with the bottom of the cylinder 18. The baffles 20 on both sides of the flat membrane 4 form spaces with the flat membrane 4, respectively.
The upper part of the inner sides of the two baffle plates 20 is provided with a fixed block 21. The upper end of the flat membrane 4 is detachably connected with the fixed block 21. During aeration, the flat membrane 4 is easy to shake back and forth by the air bubbles, and the shaking amplitude of the flat membrane 4 can be reduced by connecting the flat membrane with the fixed block 21.
The water outlet pipe 13 is connected with a membrane water outlet nozzle 14, and a membrane pressure meter 15 and a liquid pump 16 are arranged on the water outlet pipe 13. The flat membrane 4 adopts a negative pressure liquid pumping mode, and the maximum negative pressure is-0.1 MPa.
The reactor cover 24 is provided with an air outlet 8 and a feed inlet 10, and an air storage bag 9 is connected with the upper end of the air outlet 8.
The air dispersing pipe 17 is arranged at the bottom of the barrel 18, is parallel to the baffle 20 and is positioned between the two baffles 20.
An aeration loop 3 is arranged between the reactor cover 24 and the air diffusion pipe 17, and an air pump 1 is arranged on the aeration loop 3.
Inside the cylinder 18, above the flat sheet membrane 4, a fixed packed bed 7 is arranged.
As shown in fig. 3 and 4, the fixed packed bed 7 includes a packed bed support frame 22 and packing 23. The barrel 18 is internally fixed with a barrier strip 6, and a packed bed support frame 22 is arranged on the barrier strip 6 and is fixedly arranged in the barrel 18. The fixed packed bed 7 is in interference fit with the cylinder 18.
The packed bed support frame 22 is a porous closed square structure, and the packing 23 is a porous soft material and a block structure. The packing 23 is placed in a string in the packed bed support frame 22. The packing 23 is provided to prevent the foam from entering the aeration loop 3 and the air outlet 8, and in addition, a part of microorganisms grow on the packing 23, thereby reducing the solid concentration in the sludge and greatly improving the degree of membrane contamination. In addition, the filler 23 has the function of retaining microorganisms, and the microorganisms grow on the filler 23, so that a large amount of microorganisms cannot flow out along with the discharged material.
The discharge port 5 is disposed on the side wall of the cylindrical body 18 between the flat membrane 4 and the fixed packed bed 7, and the discharge port 5 is used for discharging the mixed liquor after fermentation in the anaerobic reactor.
The working process is as follows:
the wastewater enters the cylinder 18 from the feed inlet 10 and is mixed with inoculated sludge placed in the anaerobic reactor, the liquid level of the mixture is higher than that of the fixed packed bed 7, the inoculated sludge can provide microorganisms for reaction, the microorganisms utilize substances in the wastewater to be treated to generate gas, organic matters in the wastewater are decomposed by anaerobic microorganisms in the inoculated sludge, and the residence time of the wastewater in the reactor is 12-72 hours.
The treated wastewater is pumped by a liquid pump 16, filtered by the flat membrane 4 and discharged from the membrane water outlet nozzle 14 out of the anaerobic reactor through a water outlet conduit 13. A membrane pressure gauge 15 on the outlet conduit 13 indicates the intra-membrane pressure. One part of the marsh gas generated in the anaerobic reactor enters a gas storage bag 9 through a gas outlet 8, the other part of the marsh gas is pumped out by an air pump 1 through an aeration loop 3, enters a gas diffusion pipe 17 at the bottom of the anaerobic reactor, the marsh gas is introduced into a cylinder 18 again through the gas diffusion pipe 17, the introduced marsh gas rises in a space formed by a baffle plate 20 and a flat membrane 4 and stirs the mixture, so that the mixture below a fixed packed bed 7 is in a completely mixed state. Part of the microorganisms which degrade the organic matter of the wastewater grow on the fixed packed bed 7.
Hot water enters the water bath interlayer 19 from the water bath water inlet 2 and is discharged from the water bath water outlet 12, so that the temperature of the anaerobic reactor is preserved. In order to maintain the stability of the anaerobic reactor, it is necessary to discharge the mixed liquor after the mixture fermentation from the discharge port 5 irregularly.
Example 1
The anaerobic reactor of the embodiment is of a cuboid structure, the total internal volume is 14L, and the effective volume is 9L.
The temperature in the reactor is maintained at 35-37 ℃, the temperature is kept by hot water, and the hot water enters from the water inlet 2 of the water bath and is discharged from the water outlet 12 of the water bath.
The packing 23 is a 1.5X 1.5cm cubic sponge block, totaling 160 packing 23, and the fixed packed bed 7 is positioned 8cm above the flat membrane 4. The liquid after dehydration by the cattle farm screw extruder is used as the waste water to be treated, the COD concentration is 25-30g/L, and the total solid concentration is about 30 g/L.
The filtration flux of the flat membrane 4 is 5-6L/h, and the transmembrane pressure difference is-4.5 to-5.8 kPa.
Wastewater enters the reactor through the feed inlet 10, the amount of the added wastewater is 1.8L, the wastewater is mixed with the inoculated sludge placed in the reactor, the retention time is 15 hours, and the liquid level of the mixture is higher than that of the fixed packed bed 7.
The treated wastewater is pumped by a liquid pump 16, filtered by the flat membrane 4, and discharged out of the reactor through a water outlet conduit 13.
The amount of biogas generated by wastewater treatment is about 20L/day.
One part of the marsh gas enters a gas storage bag 9 through a gas outlet 8, and the other part of the marsh gas is pumped out by a gas pump 1 through an aeration loop 3 and then enters a gas diffusion pipe 17 at the bottom of the reactor; biogas is reintroduced into the cylinder 18 from the gas diffusion pipe 17, and the introduced biogas rises in the space formed by the baffle 20 and the flat membrane 4 and stirs the mixture so that the mixture is in a completely mixed state below the fixed packed bed 7. Part of anaerobic microorganisms for degrading organic matters in the wastewater grows on the fixed packed bed 7 to form a biological film.
The liquid pump 16 pumps the wastewater, the wastewater stops 1 minute every 4 minutes, 1.8L of wastewater treatment is completed after 4 hours, and the COD concentration of the treated effluent is about 4-10 g/L.
During the treatment, the mixed solution after fermentation is discharged from the discharge port 5 occasionally.
The COD concentration of the wastewater treated by the process is reduced from 25-30g/L to 4-10 g/L.
Example 2
The anaerobic reactor of the embodiment is of a cuboid structure, the total internal volume is 14L, and the effective volume is 9L.
The temperature in the reactor is maintained at 37-40 ℃, the temperature is kept by hot water, and the hot water enters from the water inlet 2 of the water bath and is discharged from the water outlet 12 of the water bath.
The packing 23 is a 2cm spherical carrier of polypropylene material and the fixed packed bed 7 is located 15cm above the flat sheet membrane 4. The wastewater of the pig farm is used as a treatment object, the COD concentration is 10-20g/L, and the total solid concentration is about 20 g/L.
The filtration flux of the membrane is 5-6L/h, and the transmembrane pressure difference is-4.0-5.0 kPa.
Pig farm wastewater enters the reactor through a feed inlet 10, 1.8L of wastewater is added and mixed with the inoculated sludge in the reactor, the retention time is 24 hours, and the liquid level of the mixture is higher than that of the fixed packed bed 7.
The treated wastewater is pumped by a liquid pump 16, filtered by a flat membrane 4, and then discharged out of the reactor through a water outlet conduit 13.
The amount of the biogas generated by the wastewater treatment is about 7-15L/day.
One part of the marsh gas enters a gas storage bag 9 through a gas outlet 8, and the other part of the marsh gas is pumped out by a gas pump 1 through an aeration loop 3 and then enters a gas diffusion pipe 17 at the bottom of the reactor; the introduced biogas rises in the space formed by the baffles 20 and the flat sheet membrane 4 and stirs the mixture so that the liquid below the fixed packed bed 7 is in a completely mixed state. The anaerobic microorganisms propagated by the degraded sewage partially grow on the fixed packed bed 7 to form a biofilm.
The liquid pump 16 pumps the wastewater, the wastewater stops 1 minute every 4 minutes, 1.8L of wastewater treatment is completed after 4 hours, and the COD concentration of the treated effluent is about 1.5-8 g/L.
During the treatment, the mixed solution after fermentation is discharged from the discharge port 5 occasionally.
The COD concentration of the wastewater treated by the process is reduced from 10-20g/L to 1.5-8 g/L.
Claims (8)
1. The utility model provides an anaerobic reactor, includes barrel (18), reactor lid (24), and barrel (18) are the cuboid structure, and reactor lid (24) set up the top at barrel (18), its characterized in that:
the reactor also comprises a water bath interlayer (19), a fixed packed bed (7) and a flat membrane (4),
wherein,
the pair of water bath interlayers (19) are symmetrically arranged at two sides of the inner wall of the barrel body (18), and the upper part and the lower part of each water bath interlayer (19) are respectively provided with a water bath water outlet (12) and a water bath water inlet (2);
the flat membrane (4) is provided with a membrane water outlet nozzle (14), the flat membrane (4) is vertically arranged between the pair of water bath interlayers (19) in the cylinder body (18), the flat membrane (4) is parallel to the water bath interlayers (19), baffles (20) parallel to the flat membrane are arranged on two sides of the flat membrane (4), the lower parts of the baffles (20) are fixedly connected with the bottom of the cylinder body (18), and the baffles (20) on two sides of the flat membrane (4) form spaces with the flat membrane (4) respectively;
the water outlet conduit (13) is connected with the membrane water outlet nozzle (14), and the water outlet conduit (13) is provided with a liquid pump (16);
the reactor cover (24) is provided with an air outlet (8) and a feed inlet (10), and the air storage bag (9) is connected with the upper end of the air outlet (8);
the air dispersing pipe (17) is arranged at the bottom of the cylinder body (18), is parallel to the baffle plates (20) and is positioned between the two baffle plates (20);
an aeration loop (3) is arranged between the reactor cover (24) and the air dispersing pipe (17), and an air pump (1) is arranged on the aeration loop (3);
a fixed packed bed (7) is arranged in the cylinder (18) and above the flat membrane (4).
2. An anaerobic reactor according to claim 1, characterized in that:
the fixed packed bed (7) comprises a packed bed support frame (22) and packing (23), a barrier strip (6) is fixed in the cylinder (18), the packed bed support frame (22) is arranged on the barrier strip (6) and is fixedly installed in the cylinder (18), and the fixed packed bed (7) is in interference fit with the cylinder (18);
the packed bed support frame (22) is a porous closed square structure, the packing (23) is a porous soft material and a blocky structure, and the packing (23) is arranged in the packed bed support frame (22) in a string shape.
3. An anaerobic reactor according to claim 1, characterized in that:
the upper part of the water bath interlayer (19) is also provided with a water pressure balancing port (11), and the water pressure balancing port (11) is positioned above the water bath water outlet (12).
4. An anaerobic reactor according to claim 1, characterized in that:
the upper parts of the inner sides of the two baffle plates (20) are provided with fixed blocks (21), and the upper ends of the flat membranes (4) are detachably connected with the fixed blocks (21).
5. An anaerobic reactor according to claim 1, characterized in that:
the filtering pore diameter of the membrane of the flat membrane (4) is the micro-filtering pore diameter, and the filtering pore diameter is 0.2 mu m.
6. An anaerobic reactor according to claim 1, characterized in that:
the flat membrane (4) adopts a negative pressure liquid pumping mode, and the maximum negative pressure is-0.1 MPa.
7. An anaerobic reactor according to claim 1, characterized in that:
and a membrane pressure meter (15) is also arranged on the water outlet conduit (13).
8. An anaerobic reactor according to claim 1, characterized in that:
the reactor further comprises a discharge opening (5), the discharge opening (5) being arranged on the side wall of the cylinder (18) between the flat membrane (4) and the fixed packed bed (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432251.0A CN107098469B (en) | 2017-06-09 | 2017-06-09 | Anaerobic reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432251.0A CN107098469B (en) | 2017-06-09 | 2017-06-09 | Anaerobic reactor |
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| Publication Number | Publication Date |
|---|---|
| CN107098469A true CN107098469A (en) | 2017-08-29 |
| CN107098469B CN107098469B (en) | 2023-04-21 |
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| CN201710432251.0A Active CN107098469B (en) | 2017-06-09 | 2017-06-09 | Anaerobic reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629947A (en) * | 2017-11-08 | 2018-01-26 | 中国农业大学 | A kind of method and device of biomethanation and synchronized desulfuring |
| CN110749701A (en) * | 2019-10-29 | 2020-02-04 | 安徽工业大学 | Air bag isolation water seal purification type carrier anaerobic biochemical performance detection device and use method |
| WO2023165091A1 (en) * | 2022-08-04 | 2023-09-07 | 常州大学 | Removal and control device for food waste digestion foam |
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| CN110749701A (en) * | 2019-10-29 | 2020-02-04 | 安徽工业大学 | Air bag isolation water seal purification type carrier anaerobic biochemical performance detection device and use method |
| CN110749701B (en) * | 2019-10-29 | 2022-01-18 | 安徽工业大学 | Air bag isolation water seal purification type carrier anaerobic biochemical performance detection device and use method |
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| US12071360B2 (en) | 2022-08-04 | 2024-08-27 | Changzhou University | Devices for controlling to remove food waste digestion foam |
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