CN215208705U - BYIC anaerobic reactor - Google Patents
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- CN215208705U CN215208705U CN202120988094.3U CN202120988094U CN215208705U CN 215208705 U CN215208705 U CN 215208705U CN 202120988094 U CN202120988094 U CN 202120988094U CN 215208705 U CN215208705 U CN 215208705U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 194
- 238000009826 distribution Methods 0.000 claims abstract description 69
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 38
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000035939 shock Effects 0.000 abstract description 7
- 239000003513 alkali Substances 0.000 abstract description 6
- 239000010802 sludge Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000010865 sewage Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
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- 239000006228 supernatant Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
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Abstract
The utility model discloses a BYIC anaerobic reactor, belonging to the technical field of BYIC anaerobic reactors, which comprises a tank body, wherein an external circulation system and an internal circulation system are arranged on the tank body; the internal circulation system comprises a lower three-phase separator, a methane lifting pipe, an upper three-phase separator, a gas-liquid separator and a mud-water descending pipe; the outer circulation system is communicated with a water distribution bag, the water distribution bag is communicated with a water inlet pipe, the water inlet pipe is connected with a water distribution system, the water distribution system comprises an umbrella-shaped water distribution cover, the bottom of the umbrella-shaped water distribution cover is provided with a plurality of mixing area water inlet pipe heads, and the mixing area water inlet pipe heads are communicated with the water inlet pipe; the muddy water downcomer extends to the bottom of the umbrella-shaped water distribution cover. The utility model discloses an umbrella type water distribution cover is add to the reactor, has reinforceed the intensive mixing of intaking with the inner loop backward flow water, has improved anaerobic reactor shock resistance, has reduced the requirement to intaking PH, has practiced thrift the alkali expense, has reduced manufacturing cost.
Description
Technical Field
The utility model relates to a BYIC anaerobic reactor technical field, concretely relates to BYIC anaerobic reactor.
Background
The anaerobic biological treatment technology is a process for decomposing organic pollutants in sewage under the action of anaerobic bacteria or facultative bacteria under anaerobic conditions. Compared with aerobic biological treatment technology, it has the advantages of low energy consumption, less mud production, capability of producing valuable recovery resources such as methane and the like, strong impact load resistance, low demand on nutrients, capability of intermittently operating and the like, thereby being widely applied.
With the progress of science and technology, anaerobic biological treatment technology has been developed greatly in recent years, and various anaerobic bioreactors such as AF (anaerobic filter), AFBR (anaerobic fluidized bed reactor), UASB (upflow anaerobic sludge blanket), EGSB (expanded granular sludge blanket), BYIC (internal circulation anaerobic reactor) and the like have been used at present.
The BYIC anaerobic reactor is a third-generation efficient anaerobic reactor developed on the basis of UASB and EGSB, and is increasingly applied to high-concentration organic wastewater treatment systems due to the advantages of the BYIC anaerobic reactor in aspects of engineering investment, operation energy consumption, occupied area, volume load and the like. However, the traditional IC anaerobic reactor generally has the problems of low water inlet impact resistance, high production cost and the like caused by the need of adding chemicals to adjust PH during operation.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a BYIC anaerobic reactor; this BYIC anaerobic reactor adds umbrella type water distribution cover for the reactor to set up a plurality of water inlet tube head at umbrella type water distribution cover, strengthened the intensive mixing of intaking and inner loop backward flow water, improved anaerobic reactor shock resistance, reduced the requirement to intaking PH, practiced thrift the expense of adding alkali, reduced manufacturing cost, solved traditional anaerobic reactor intake and backward flow water mixing inequality, shock resistance is poor, need the problem of a large amount of medicaments regulation water alkalinity.
In order to solve the technical problem, the utility model provides a BYIC anaerobic reactor, which comprises a tank body, wherein an external circulation system and an internal circulation system are arranged on the tank body; the internal circulation system comprises a lower three-phase separator, a methane lifting pipe, an upper three-phase separator, a gas-liquid separator and a mud-water descending pipe; the outer circulation system is communicated with a water distribution bag, the water distribution bag is communicated with a water inlet pipe, the water inlet pipe is connected with a water distribution system, the water distribution system comprises an umbrella-shaped water distribution cover, the bottom of the umbrella-shaped water distribution cover is provided with a mixing area water inlet pipe head, and the mixing area water inlet pipe head is communicated with the water inlet pipe; the muddy water downcomer extends to the bottom of the umbrella-shaped water distribution cover.
In the further improvement of the utility model, the water inlet pipe heads of the mixing area are circumferentially and uniformly distributed at the bottom of the umbrella-shaped water distribution cover; the mixing area water inlet pipe head is at least provided with one circle, and each circle of mixing area water inlet pipe head is at least provided with two.
Through the design, the scheme can more uniformly input the inlet water into the mixing area; when the mixing area water inlet pipe head is arranged, a certain angle is preferably formed between the mixing area water inlet pipe head and the bottom of the tank body, so that water can be obliquely injected into the mixing area, and the mixing area is more favorable for fully mixing with the internal circulation backflow water.
In the further improvement of the utility model, the mud-water downcomer passes through the middle part of the umbrella-shaped water distribution cover.
Through the design, the scheme can be more convenient for mixing the internal reflux sewage of the mud-water descending pipe with the inlet water.
The utility model discloses in the further improvement, the umbrella face of above-mentioned umbrella type cloth water cover is formed by a plurality of stainless steel sheet folds the piece, is provided with the space between the umbrella edge of umbrella type cloth water cover and the internal wall of jar.
Through the design, the arrangement of the water inlet pipe head in the mixing area can be more convenient for the scheme.
The utility model discloses in the further improvement, the structure of above-mentioned lower floor's three-phase separator is the same with upper three-phase separator's structure, and lower floor's three-phase separator and upper three-phase separator all adopt five layers of cones to overflow passageway staggered floor structure.
Through the design, the scheme can be more convenient for air interception and mud interception.
The utility model discloses in the further improvement, above-mentioned five layers of cones overflow every layer of cones of passageway staggered floor structure and adjacent layer overflow the passageway position relative, and the width of single cone is less than the width of overflowing the passageway.
Through the design, the scheme can be more convenient for air interception and mud interception.
The utility model discloses in the further improvement, above-mentioned passageway intercommunication that overflows has the gas collection tank, and the gas collection tank communicates with marsh gas riser.
Through the design, the scheme can be more convenient for lifting the methane.
The utility model discloses in the further improvement, above-mentioned lower floor's three-phase separator and upper strata three-phase separator all adopt the polypropylene to make and form.
Through the design, the scheme can be more convenient to produce and manufacture, and when the device is in test operation, the device adopts modular production and field assembly, the three-phase separator adopts a mounting mode without a pressing beam, the mounting process is not started, the device is in bolt connection assembly on the field, and the device is safe and stable.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an umbrella type water distribution cover is add to the reactor to set up a plurality of water inlet tube head at umbrella type water distribution cover, strengthened the intensive mixing of intaking with the inner loop backward flow water, improved anaerobic reactor shock resistance, reduced the requirement to intaking PH, practiced thrift the expense of adding alkali, reduced manufacturing cost, solved traditional anaerobic reactor intake and backward flow water mixing inequality, shock resistance is poor, need a large amount of medicaments to adjust the problem of the basicity of intaking.
Drawings
To more clearly illustrate the background art or the technical solution of the present invention, the drawings used in conjunction with the prior art or the detailed description are briefly described below; obviously, the structure, proportion, size, etc. shown in the drawings are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the circumferential distribution of the water inlet pipe heads of the mixing area at the bottom of the umbrella-shaped water distribution cover.
Fig. 3 is a schematic structural view of the umbrella-shaped water distribution cover of the present invention 1.
Fig. 4 is a schematic structural view of the umbrella-shaped water distribution cover of the present invention 2.
Fig. 5 is a schematic structural diagram of the lower three-phase separator or the upper three-phase separator of the present invention.
Fig. 6 is a schematic view of the external structure of the present invention.
Shown in the figure: 1-tank body; 2-rotating the ladder; 3-a platform; 4-dividing into water bags; 5-water inlet pipe; 51-mixing zone water inlet pipe head; 6-umbrella-shaped water distribution cover; 7-a lower three-phase separator; 8-a biogas riser; 9-upper three-phase separator; 10-a gas-liquid separator; 11-a mud down pipe; 111-mud downcomer head; 12-an effluent separation system; 13-external circulation system; 14-water outlet groove; 15-water outlet pipe; 16-a blow-down pipe; 17-temperature measuring hole; 18-manhole; 19-a sampling port; 20-an exhaust pipe; 21-cone gas collecting hood; 210-a flow-through channel; 22-internal circulation pipeline; and 23-a gas collecting box.
Detailed Description
In order to make the technical solution in the present invention better understand, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by the person skilled in the art without creative work should belong to the protection scope of the present invention.
Meanwhile, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, referred to in the present specification, refer to the orientation or positional relationship indicated on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, it is not understood as a limitation of the present invention, and a change or adjustment of the relative relationship thereof, without substantial technical change, should be considered as a practicable scope of the present invention.
Meanwhile, in the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other, so that the specific meaning of the terms in the invention can be understood through specific situations for a person skilled in the art.
As shown in fig. 1-6, a BYIC anaerobic reactor comprises a tank body 1, wherein an external circulation system 13 and an internal circulation system are arranged on the tank body 1; the internal circulation system comprises a lower three-phase separator 7, a methane lifting pipe 8, an upper three-phase separator 9, a gas-liquid separator 10 and a mud-water descending pipe 11; the external circulation system is communicated with a water distribution bag 4, the water distribution bag 4 is communicated with a water inlet pipe 5, the water inlet pipe 5 is connected with a water distribution system, the water distribution system comprises an umbrella-shaped water distribution cover 6, the bottom of the umbrella-shaped water distribution cover 6 is provided with a plurality of mixing area water inlet pipe heads 51, and the mixing area water inlet pipe heads 51 are communicated with the water inlet pipe 5; the muddy water downcomer 11 extends to the bottom of the umbrella-shaped water distribution cover 6.
The BYIC anaerobic reactor is a third-generation efficient anaerobic reactor developed on the basis of UASB and EGSB, and is increasingly applied to a high-concentration organic wastewater treatment system due to the advantages of the BYIC anaerobic reactor in aspects of engineering investment, operation energy consumption, occupied area, volume load and the like, but the traditional IC anaerobic reactor generally has the problems of low water inlet impact resistance, PH regulation during operation, high production cost and the like.
Therefore, the design concept of the scheme is that the umbrella-shaped water distribution cover is additionally arranged for the reactor, and the umbrella-shaped water distribution cover is provided with the plurality of water inlet pipe heads of the mixing area, so that the inlet water and the return sewage are fully mixed under the water distribution cover, the full mixing of the inlet water and the internal circulation return water is strengthened, the impact resistance of the anaerobic reactor is improved, the requirement on the pH value of the inlet water is lowered, the alkali adding cost is saved, and the production cost is lowered.
The mixing area water inlet pipe heads 51 are uniformly distributed at the bottom of the umbrella-shaped water distribution cover 6 in the circumferential direction; the mixing area water inlet pipe heads 51 are arranged at least one circle, and at least two mixing area water inlet pipe heads 51 are arranged in each circle; the muddy water downcomer 11 penetrates through the middle part of the umbrella-shaped water distribution cover 6; the umbrella surface of the umbrella-shaped water distribution cover 6 is formed by stacking and splicing a plurality of stainless steel plates, and a gap is arranged between the edge of the umbrella-shaped water distribution cover 6 and the inner wall of the tank body 1.
The structure of the lower three-phase separator 7 is the same as that of the upper three-phase separator 9, and the lower three-phase separator 7 and the upper three-phase separator 9 both adopt a staggered structure of five layers of cone overflowing channels; each layer of cone of the five-layer cone overflowing channel staggered structure is opposite to the overflowing channel position of the adjacent layer, and the width of a single cone is smaller than that of the overflowing channel 210; the overflowing channel 210 is communicated with a gas collecting tank 23, and the gas collecting tank 23 is communicated with the biogas riser 8; the lower three-phase separator 7 and the upper three-phase separator 9 are both made of polypropylene.
The utility model discloses a high-efficient BYIC anaerobic reactor, this reactor is including jar body 1, water distribution system, lower floor's three-phase separator 7, upper strata three-phase separator 9, inner circulating system, vapour and liquid separator 10, outer circulating system 13, play water piece-rate system 12 etc. this system is through the design of improvement core internal system water distributor and three-phase separator, optimizes the fixed mode of installation, has apparent advantage than other equipment of the same type in the aspect of operating performance and stability and security.
In the first scheme, an umbrella-shaped water distribution cover is adopted, a cone angle of 21 degrees is formed between an umbrella surface and a tank bottom, the umbrella surface is formed by splicing a plurality of stainless steel plates in a stacking mode, a gap is reserved between the edge of the umbrella and the tank wall, inlet water is uniformly distributed below the vertical section of the whole umbrella-shaped water distribution cover, and the inlet water and internal circulation return water (return water in a mud descending pipe) are fully mixed and then enter a main reaction zone of a tank body; the problems of uneven mixing of the inlet water and the return water, poor impact resistance and the need of a large amount of medicaments for adjusting the alkalinity of the inlet water of the traditional anaerobic reactor are solved.
In the second scheme, the three-phase separator adopts a five-layer cone overflowing channel staggered-layer structure, staggered layers are asymmetric structures, namely each layer of cone corresponds to the next layer of overflowing channel, the width of the cone is smaller than that of the overflowing channel, five staggered layers are adopted, finally five layers of cones can fully cover the overflowing channel, the upper layer and the lower layer of cones are ten layers, and the gas-intercepting and mud-intercepting effects are very obvious; the defects that the sludge is easy to lose and the biogas is not completely collected in the traditional anaerobic tank three-phase separator are overcome; as shown in the figure, the overflowing channel 210 is arranged below the cone gas collecting hood 21, the overflowing channel 210 is communicated with the gas collecting tank 23, the gas collecting tank 23 is communicated with the biogas riser 8, and the internal circulation pipeline 22 can be used as a muddy water downcomer or a pipeline with other functions.
And thirdly, the three-phase separator is made of high-quality PP materials, is produced in a modularized mode and is assembled on site, the three-phase separator adopts a mounting mode without a pressing beam, a fire-free mounting process is adopted, and the three-phase separator is connected and assembled through bolts on site, so that the three-phase separator is safe and stable.
The BYIC anaerobic reactor comprises a tank body 1, a rotary ladder 2, a platform 3, a water distribution bag 4, a water inlet pipe 5, a water distribution system 6 (umbrella-shaped water distribution cover), a lower three-phase separator 7, a methane lifting pipe 8, an upper three-phase separator 9, a gas-liquid separator 10, a mud-water descending pipe 11, a water outlet separation system 12 and an outer circulation system 13, wherein the lower three-phase separator 7, the methane lifting pipe 8, the upper three-phase separator 9, the gas-liquid separator 10, the mud-water descending pipe 11 and the like are communicated to form the inner circulation system which penetrates through the whole tank body and is also the core of the whole anaerobic reactor; the external circulation system 13) is communicated with the water distribution bag 4 and the water distribution system 6; the water outlet separation system is combined with the water outlet pipe 15; the tank body 1 comprises a water inlet pipe 5, a water outlet pipe 15, a water outlet tank 14, an emptying pipe 16, a temperature measuring hole 17, a manhole 18 and a sampling port 19; the gas-liquid separator 10 is located at the top of the reactor, and an exhaust pipe 20 is provided at the upper portion thereof.
The BYIC reactor height can reach 16 m-24 m, the height-diameter ratio is more than 4, the reactor is divided into three parts by the lower three-phase separator 7 and the upper three-phase separator 9, namely a high load region, a low load region and a precipitation separation region, and the high load region is a mixing region close to the bottom of the tank.
A mixing area:
the water outlet and inlet of the external circulation system 13 are mixed in the water distribution bag 4 and then are connected with the water distribution system 6 through the water inlet pipe 5, the effect of the external circulation system is that the inlet water enters the reaction tank in a high-speed rotational flow mode and is fully mixed with the return sewage and uniformly distributed on the whole cross section of the tank body, the problems that the inlet water of the traditional IC reactor is not uniformly distributed, dead angles are easy to generate, the effective volume utilization rate is low and the like are solved, and the impact resistance, the inlet water alkalinity and the hydraulic load of the reactor are improved.
In a high load area:
the sewage enters a high-load area, a large amount of organic matters are converted into methane under the action of microorganisms under the anaerobic condition, gas is collected by a lower three-phase separator 7, a gas-water mixture is lifted to a gas-liquid separator 10 at the top through a methane lifting pipe 8, gas-liquid separation is carried out, the methane is led out through an exhaust pipe 20, and a mud-water mixture flows back to a water distribution area at the bottom of the reactor through a mud-water descending pipe 11 to form internal circulation.
And (3) a low-load region:
the mud-water mixture passing through the lower three-phase separator 7 enters a low-load area for further biochemical degradation, most organic matters in the sewage are removed at the moment, the methane yield is obviously reduced, and the methane is collected by the upper three-phase separator 9 and then enters a gas-liquid separator 10 to be led out through an exhaust pipe 20.
A precipitation separation zone:
the mud-water mixture enters a precipitation separation zone after passing through an upper three-phase separator 9, and supernatant after precipitation is discharged out of the tank through a water outlet pipe 15; the combination of the effluent separation system 12 and the outlet pipe can separate the granular sludge carried in the effluent and return the granular sludge to the system.
The umbrella-shaped water distribution cover has a 21-degree taper angle between the umbrella cover and the tank bottom, the umbrella cover is formed by splicing a plurality of stainless steel plates in a stacking manner, a gap is reserved between the edge of the inverted umbrella and the tank wall, water inlet is uniformly distributed below the vertical section of the whole inverted umbrella-shaped water distribution cover, each water distribution point is in high-speed rotational flow, multiple points are uniformly distributed on the tank section, the flow rate of a rotational flow water outlet is not lower than 2m/s, a mud water descending pipe 11 extends to the position below the water distribution cover, and the water inlet and circulating return water in the mud water descending pipe are fully mixed under the water distribution cover and then enter a main reaction zone of the tank body;
the lower three-phase separator 7 and the upper three-phase separator 9 have the same design structure, and the gas and mud intercepting effect is very obvious; solves the problems of poor capability of intercepting granular sludge, incomplete methane collection and the like at present.
The utility model provides an umbrella-shaped water distribution cover, which ensures that the inlet water is uniformly distributed below the vertical section of the whole umbrella-shaped water distribution cover, strengthens the full mixing of the inlet water and the internal circulation backflow water, improves the shock resistance of an anaerobic reactor, reduces the requirement on the PH of the inlet water and saves the cost of adding alkali; the problems that the traditional anaerobic reactor is uneven in mixing of the inlet water and the return water, poor in impact resistance and large in medicament requirement for adjusting the alkalinity of the inlet water are solved; the three-phase separator adopts a five-layer cone flow passage staggered structure, the upper layer and the lower layer are ten layers of cones, the gas interception and sludge interception effects are obvious, and the defects that the sludge is easy to lose and the methane is not completely collected in the traditional anaerobic tank three-phase separator are overcome; the three-phase separator is made of high-quality PP materials, is produced in a modularized mode and is assembled on site, the three-phase separator adopts a mounting mode without a pressing beam, a fire-free mounting process is adopted, and the three-phase separator is connected and assembled through bolts on site, so that the three-phase separator is safe and stable; the improved novel IC anaerobic reactor ensures the water outlet effect of the reactor, improves the shock resistance, saves the alkali adding cost, has more obvious biogas income and safer construction process.
The utility model has the advantages that:
1) the technology can be used as a core technology of a comprehensive system combining environmental protection, energy recovery and ecological virtuous cycle, and has better environmental and economic benefits;
2) the technology is very economical, and has much lower wastewater treatment cost than aerobic treatment, especially for wastewater with concentration higher than medium concentration (COD is more than 3000 mg/L);
3) the technology has the advantages that the energy demand is low, and a large amount of energy can be generated;
4) the technical equipment has high load and small occupied area;
5) the technology produces a small amount of excess sludge;
6) the technology has low demand for nutrients;
7) the strain of the technology can keep the biological activity and good sedimentation performance for at least more than one year under the condition of stopping supplying wastewater and nutrition;
8) the technical equipment has flexible scale, capability of being large or small, simple structure and easy manufacture.
9) The reactor has the advantages of good mass transfer effect, large biomass, long sludge age and stable treatment effect due to strong internal circulation capacity.
10) The equipment has high processing efficiency and safe manufacturing process, and is easy to popularize in a large range.
The specific implementation process of the anaerobic reactor is described as follows:
the production wastewater and the external circulation effluent firstly enter a mixing zone at the bottom of the reactor, are fully mixed with the internal circulation slurry-water mixed liquor from the slurry-water descending pipe and then enter a high-load zone for biochemical degradation of COD, wherein the volume load of the COD is very high, most of the COD is degraded at the high-load zone to generate a large amount of biogas, and the biogas is collected by a lower three-phase separator.
Because the expansion work of the liquid in the process of forming the methane bubbles generates a gas lifting effect, the mixture of methane, sludge and water rises to a gas-liquid separator at the top of the reactor along a methane lifting pipe, and the methane is separated from mud and water at the gas-liquid separator and is led out of the treatment system; the mud-water mixture enters a water distribution area at the bottom of the reactor along the mud-water descending pipe, and enters a sludge expansion bed area after being fully mixed with the inlet water to form so-called internal circulation.
According to different water inlet COD loads and different structures of the reactor, the internal circulation flow can reach 0.5-20 times of the water inlet flow, except part of the sewage treated by the high-load region participates in the internal circulation, the rest of the sewage enters the low-load granular sludge bed region through the lower three-phase separator to carry out the processes of residual COD degradation and biogas production, the water quality of the outlet water is improved and ensured, as most of COD is degraded, the COD load of the low-load region is lower, the gas production is smaller, the biogas generated at the position is collected by the upper three-phase separator, enters the gas-liquid separator through the gas collecting pipe and is led out of the treatment system, after the wastewater treated by the low-load region is acted by the upper three-phase separator, the supernatant is discharged through the water outlet region, and the granular sludge returns to the sludge bed of the low-load region.
Although the present invention has been described in detail with reference to the drawings and preferred embodiments, the present invention is not limited thereto, and those skilled in the art can make various equivalent modifications or substitutions to the embodiments of the present invention without departing from the spirit and essential characteristics of the present invention, and these modifications or substitutions should be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be defined by the appended claims.
Claims (8)
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| CN202120988094.3U CN215208705U (en) | 2021-05-08 | 2021-05-08 | BYIC anaerobic reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119461658A (en) * | 2025-01-14 | 2025-02-18 | 北京禹涛环境工程有限公司 | Anaerobic three-phase separation system and method of use thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119461658A (en) * | 2025-01-14 | 2025-02-18 | 北京禹涛环境工程有限公司 | Anaerobic three-phase separation system and method of use thereof |
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