CN112897688B - HIC anaerobic reactor - Google Patents
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
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- C02F3/2873—Particular arrangements for anaerobic reactors with internal draft tube circulation
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Abstract
The invention discloses an HIC (anaerobic baffled reactor), belonging to the field of biological sewage treatment. According to the HIC anaerobic reactor, the water distributor with a special structure is designed in the sludge mixing area, the plurality of flow guide plates are arranged on the circumferential surface of the water distributor, the water outlet hole is formed in the position where each flow guide plate is connected with the water distributor, and the water distribution holes are formed in the two side surfaces of the water distributor, so that three-dimensional disturbance and homogeneous mixing of muddy water are effectively realized, the shock resistance of the reactor is enhanced, the treatment effect of the reactor is improved, and the HIC anaerobic reactor has the advantages of simple structure, reasonable design, easiness in manufacturing and the like.
Description
Technical Field
The invention belongs to the field of biological sewage treatment, and particularly relates to an HIC anaerobic reactor.
Background
An IC (internal circulation) anaerobic reactor is an internal circulation anaerobic reactor developed on the basis of a UASB (upflow anaerobic sludge blanket) reactor, and is similar to a reactor formed by connecting 2 layers of UASB reactors in series and divided into an upper reaction chamber and a lower reaction chamber. The wastewater flows from bottom to top in the reactor, pollutants are adsorbed and degraded by bacteria, and the water treated by the reactor flows out from the upper part. Traditional IC anaerobic reactor tank shape is mostly circular, and the water distributor is mostly horizontal arborization. The water flow of the traditional reactor rises in a stable linear form in the equipment, the mud-water mixing effect is poor, the mass transfer is uneven, and the impact resistance is weak; and the muddy water with poor mixing effect is easy to cause local sludge deposition, causes local blockage of the water distributor and causes the phenomenon of uneven water distribution.
The patent application number of 201711221581.1, which is filed in 2018, 2 and 23, discloses a rotary water distribution type IC anaerobic reactor, wherein an arranged water inlet distributor is an improvement of a traditional branch-type distributor and comprises two devices, namely an internal circulation distributor and a water inlet distributor, two or more branch pipes are radially connected through a main pipe, and water inlet holes forming an included angle of 15-40 degrees with the horizontal plane are arranged at the tail ends of the branch pipes for water distribution. The water distributor can realize the disturbance in the horizontal direction and the small-amplitude disturbance in the vertical direction of the sludge mixing area, but the sludge-water mixing area is small, and the water quality mutation resistance is weak.
In addition, the diameters of the first anaerobic reaction zone and the second anaerobic reaction zone of the traditional IC anaerobic reactor are the same, and the sludge is easy to lose when the rising flow rate of water in the reactor is higher. The invention discloses a composite internal circulation anaerobic reactor which is found by retrieval in the invention patent application number of 200610112763.0, application date of 2006, 9 and 1, and the top of the anaerobic reaction zone of the reactor is enlarged in cross section through a divergent design, the upper cross section is divided into a down flow zone and a filtering zone, and the whole upper area of the reactor is used as a mud-water separation zone. However, the enlarged cross section is used in the invention to prevent the increase of the outflow velocity, and only one anaerobic reaction zone is arranged in the whole reactor, so that the treatment effect is poor.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems of poor mud-water mixing effect, uneven mass transfer, weak impact resistance, poor treatment effect and the like of an IC (integrated Circuit) anaerobic reactor in the prior art, the invention provides a novel efficient internal circulation HIC anaerobic reactor. According to the HIC anaerobic reactor, the water distributor with a special structure is designed in the sludge mixing area, the circumferential surface of the water distributor is provided with the plurality of flow guide plates, the position where each flow guide plate is connected with the water distributor is provided with the water outlet hole, and the two side surfaces of the water distributor are provided with the water distribution holes, so that three-dimensional disturbance and homogeneous mixing of muddy water are effectively realized, the impact resistance of the reactor is enhanced, and the treatment effect of the reactor is enhanced.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the HIC anaerobic reactor comprises a reactor body, wherein a sludge mixing area, a first anaerobic reaction area, a second anaerobic reaction area and a settling area are arranged in the reactor body, the sludge mixing area is positioned below the first anaerobic reaction area, the settling area is positioned above the first anaerobic reaction area, the second anaerobic reaction area is positioned between the first anaerobic reaction area and the settling area, a water distributor is arranged in the sludge mixing area, a plurality of guide plates are arranged on the circumferential surface of the water distributor, a water outlet hole is formed in the position, connected with the water distributor, of each guide plate, and water distribution holes are formed in the two side surfaces of the water distributor.
Preferably, the water distributor comprises a water distributor tank body, a first inlet flange and a second inlet flange, and the first inlet flange and the second inlet flange are respectively positioned on two side surfaces of the water distributor.
Preferably, the water distributor is a horizontal water distributor, the water distributor is shaped like a flat cylinder, and the interior of the water distributor is of a cavity structure.
Preferably, the number of the guide plates is 6-12, and the length of the guide plate is 10-20 cm. More preferably, the included angle between the guide plate and the water distributor is 15-30 degrees.
Preferably, the cross-sectional area of the second anaerobic reaction zone gradually increases from bottom to top, wherein the ratio of the cross-sectional area of the bottom of the second anaerobic reaction zone to the cross-sectional area of the top of the second anaerobic reaction zone is 1.2-1.5.
Preferably, the width of the water outlet hole is 5 mm-10 mm; the diameter of the water distribution holes is 5 mm-10 mm, and the distance between every two water distribution holes is 10 cm-15 cm.
Preferably, the bottom of the reactor body is provided with a sewage inlet, the side wall of the reactor body corresponding to the first anaerobic reaction zone is provided with a first circulation port, and the side wall of the reactor body corresponding to the second anaerobic reaction zone is provided with a second circulation port; the sewage inlet is connected with a first inlet flange of the water distributor through a water inlet pipeline, the first circulating port is connected with a second inlet flange of the water distributor through a first external circulating pipeline, and the second circulating port is connected with the second inlet flange of the water distributor through a second external circulating pipeline.
Preferably, a gas-liquid separator is arranged at the top of the reactor body, a first three-phase separator is arranged between the first anaerobic reaction zone and the second anaerobic reaction zone, a second three-phase separator is arranged between the second anaerobic reaction zone and the settling zone, the first three-phase separator is connected with the gas-liquid separator through a first lifting pipe, the second three-phase separator is connected with the gas-liquid separator through a second lifting pipe, and the gas-liquid separator is connected with the upper part of the water distributor through an inner return pipe.
Preferably, the first circulating port is positioned at a position of 0.5-1.0 m below the first three-phase separator; the second circulating port is positioned at a position of 0.5-1.0 m below the second three-phase separator.
Preferably, the distance between the bottom of the inner return pipe and the top of the water distributor is 30-50 cm.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the HIC anaerobic reactor, the water distributor is arranged in the sludge mixing area, and through the horizontal cylindrical structural design of the water distributor, the plurality of flow deflectors and the plurality of water outlet holes are uniformly distributed on the circumferential surface of the water distributor, and the plurality of water distribution holes are uniformly distributed on the left and right circular plate surfaces of the water distributor, so that three-dimensional disturbance and homogeneous mixing of muddy water in the vertical direction and the horizontal direction of the sludge mixing area are realized, and the impact resistance of the reactor is enhanced;
(2) According to the HIC anaerobic reactor, the flow velocity of the upstream sewage in the second anaerobic reaction zone is gradually reduced by the bottom-to-top gradually-expanding design of the cross sectional area of the second anaerobic reaction zone, so that the loss of sludge is avoided;
(3) According to the HIC anaerobic reactor, the side wall of the reaction body corresponding to the first anaerobic reaction zone is provided with the first circulation port, the side wall of the reaction body corresponding to the second anaerobic reaction zone is provided with the second circulation port, the first circulation port is connected with the water distributor through the first external circulation pipeline, and the second circulation port is connected with the water distributor through the second external circulation pipeline, so that two external circulation systems are realized, different flow rates can be controlled in the use process, the homogeneous mixing of muddy water is enhanced, the treatment effect is enhanced, and the blocking of water distribution holes of the water distributor is avoided;
(4) The HIC anaerobic reactor disclosed by the invention is simple in structure, reasonable in design and easy to manufacture.
Drawings
FIG. 1 is a schematic structural view of an HIC anaerobic reactor according to the present invention;
FIG. 2 is a schematic structural diagram of a horizontal water distributor in an HIC anaerobic reactor according to the invention;
FIG. 3 is a sectional view of a horizontal water distributor in an HIC anaerobic reactor according to the present invention;
fig. 4 is a partially enlarged schematic view of a guide plate and a water outlet hole arranged on the horizontal water distributor of the invention.
In the figure:
100. a reactor body; 101. a sewage inlet; 102. a water inlet pipe; 103. a gas-liquid separator;
110. a sludge mixing zone; 120. a first anaerobic reaction zone; 121. a first circulation port;
122. a first external circulation pipe; 130. a second anaerobic reaction zone; 131. a second circulation port;
132. a second external circulation pipe; 140. a settling zone; 141. a water collection tank;
200. a water inlet pump; 210. a first three-phase separator; 220. a second three-phase separator;
230. a first riser; 240. a second riser tube; 250. an inner return pipe;
300. a water distributor; 301. a baffle; 302. a water outlet hole; 303. a water distribution hole;
304. a water distributor tank; 305. a first inlet flange; 306. a second inlet flange;
307. a support; 308. a water distributor connecting pipe; 309. a flow baffle plate; 310. fixing the rod;
1120. a first external circulation pump; 1130. and a second external circulation pump.
Detailed Description
The invention is further described with reference to specific examples.
As shown in fig. 1, an HIC anaerobic reactor according to the present invention comprises a reactor body 100, a sewage inlet 101 is arranged at the bottom of the reactor body 100, a sludge mixing zone 110, a first anaerobic reaction zone 120, a second anaerobic reaction zone 130 and a settling zone 140 are arranged inside the reactor body 100, the sludge mixing zone 110 is located below the first anaerobic reaction zone 120, the settling zone 140 is located above the first anaerobic reaction zone 120, and the second anaerobic reaction zone 130 is located between the first anaerobic reaction zone 120 and the settling zone 140, wherein the cross-sectional area of the bottom of the second anaerobic reaction zone 130 is the same as the cross-sectional area of the top of the first anaerobic reaction zone 120, and the cross-sectional area of the second anaerobic reaction zone 130 increases gradually from bottom to top, and generally, the ratio of the cross-sectional area of the bottom of the second anaerobic reaction zone 130 to the cross-sectional area of the top of the second anaerobic reaction zone 130 is 1.2-1.5.
A water distributor 300, preferably a horizontal water distributor, is arranged in the sludge mixing zone 110. As shown in fig. 2, the water distributor 300 is shaped like a flat cylinder, and the inside of the water distributor 300 is a cavity structure. A plurality of guide plates 301 are arranged on the circumferential surface of the water distributor 300, water outlet holes 302 are arranged at the positions where each of the guide plates 301 is connected with the water distributor 300, and water distribution holes 303 are uniformly arranged on the circumferential surfaces of both sides of the water distributor 300.
It should be noted that the number of the guide plates 301 is usually 6 to 12, the length of the guide plate 301 is 10cm to 20cm, and the included angle between the guide plate 301 and the water distributor 300 is 15 to 30 degrees; the shape of the water outlet hole 302 is preferably rectangular, wherein the width of the water outlet hole 302 is 5 mm-10 mm, and the length of the water outlet hole 302 is the same as that of the guide plate 301; the diameter of the water distribution holes is 5 mm-10 mm, and the distance between every two water distribution holes is 10 cm-15 cm. Due to the unique design, three-dimensional disturbance and homogeneous mixing of muddy water in the vertical direction and the horizontal direction of the sludge mixing area 110 can be effectively realized, so that the impact resistance of the reactor is enhanced.
It should be further noted that, as shown in fig. 3, the water distributor 300 includes a water distributor tank 304, a first inlet flange 305, a second inlet flange 306 and a bracket 307, the first inlet flange 305 and the second inlet flange 306 are respectively disposed on two sides of the water distributor 300 through a water distributor connecting pipe 308, and the bracket 307 is used for placing the water distributor 300 in the reactor body 100. Baffles 309 are respectively arranged in the cavity of the water distributor 300 at positions close to the first inlet flange 305 and the second inlet flange 306, and the baffles 309 are fixed in the cavity through fixing rods 310.
A first circulation port 121 is arranged on the side wall of the reaction body 100 corresponding to the first anaerobic reaction zone 120, and a second circulation port 131 is arranged on the side wall of the reaction body 100 corresponding to the second anaerobic reaction zone 130; the sewage inlet 101 is connected to a first inlet flange 305 of the water distributor 300 through the water inlet pipe 102, the first circulation port 121 is connected to a second inlet flange 306 of the water distributor 300 through a first external circulation pipe 122, and the second circulation port 131 is connected to the second inlet flange 306 of the water distributor 300 through a second external circulation pipe 132.
In addition, a gas-liquid separator 103 is arranged at the top of the reactor body 100, a first three-phase separator 210 is arranged between the first anaerobic reaction zone 120 and the second anaerobic reaction zone 130, a second three-phase separator 220 is arranged between the second anaerobic reaction zone 130 and the settling zone 140, the first three-phase separator 210 is connected with the gas-liquid separator 103 through a first lifting pipe 230, the second three-phase separator 220 is connected with the gas-liquid separator 103 through a second lifting pipe 240, and the gas-liquid separator 103 is connected with the upper part of the water distributor 300 through an internal return pipe 250. The distance between the bottom of the inner return pipe 250 and the top of the water distributor 300 is 30 cm-50 cm.
Generally, the first circulation port 121 is located at a position of 0.5 to 1.0m below the first three-phase separator 210; the second circulation port 131 is located at a position of 0.5m to 1.0m below the second three-phase separator 220. The arrangement avoids the impact of rising water flow on the three-phase separator, reduces the flow velocity of water flow passing through the three-phase separator, and effectively prevents sludge loss.
The sewage, the first external circulation return sewage and the second external circulation return sewage can respectively enter the cavity of the horizontal rotary water distributor 300 from the sewage inlet 101, the first circulation port 121 and the second circulation port 131, are stopped by the flow baffle plate 309 and then flow around, so that the inlet water and the external circulation water are mixed in the water distributor 300, and then are jetted into the sludge mixing zone 110. The mud and water are three-dimensionally and homogeneously mixed in the sludge mixing area 110, then the mud and water flow upwards into the first anaerobic reaction area 120, the sewage continues to flow upwards in the first anaerobic reaction area 120, and meanwhile, anaerobic decomposition of organic matters is carried out, so that a large amount of pollutants in the sewage are removed. The sewage after passing through the first anaerobic reaction zone 120 flows upward through the gap of the first three-phase separator 210 and enters the second anaerobic reaction zone 130, the residual organic matters in the sewage are further subjected to anaerobic decomposition in the second anaerobic reaction zone 130, and the sewage after being treated by the second anaerobic reaction zone 130 can achieve a better anaerobic reactor treatment effect. The wastewater then continues to flow upward through the interstices of the second three-phase separator 220 into the settling zone 140 where settling of the sludges from the second three-phase separator 220 occurs within the settling zone 140. Due to the bottom-to-top gradually expanding design of the cross-sectional area of the second anaerobic reaction zone 130, the flow velocity of sewage passing through the gap of the second three-phase separator 220 and entering the settling zone 140 is effectively reduced, the mass loss of sludge in the second anaerobic reaction zone 130 is avoided, and meanwhile, a good mud-water separation effect in the settling zone 140 is realized. The sewage after mud-water separation continuously flows upwards into the water collecting tank 141, and is discharged after being collected, so that the whole anaerobic treatment is completed.
Example 1
3000m designed water flow of certain chemical wastewater 3 The COD of the inlet water after the front end pretreatment is 8000-8500 mg/L, the BOD is 3200-3400 mg/L, the B/C ratio is 0.4, and the suspended matters are 300-400 mg/L.
The cross section of the second anaerobic reaction zone 130 of this embodiment gradually increases from bottom to top, and the ratio of the cross sectional area of the bottom to the cross sectional area of the top is 1.2. The first circulation port 121 is provided at a position 0.5m below the first three-phase separator 210, and the second circulation port 131 is provided at a position 0.5m below the second three-phase separator 220.
The sewage enters the first inlet flange 305 of the horizontal rotary water distributor 300 from the sewage inlet 101 through the water inlet pipe 102, and the first circulation port 121 and the second circulation port 131 are connected to the second inlet flange 306 of the horizontal rotary water distributor 300 through the first external circulation pump 1120 and the second external circulation pump 1130 respectively. The arrangement of the two sets of external circulation systems ensures that the area below the first circulation port 121 rises at the flow velocity of 15m/h, the flow velocity from the first circulation port 121 to the bottom of the second anaerobic reaction zone 130 rises at the flow velocity of 8m/h, and the flow velocity at the position of the second circulation port 131 of the second anaerobic reaction zone 130 rises at the flow velocity of 7.0m/h.
6 guide plates 301 are uniformly distributed on the circumferential surface of the horizontal rotary water distributor 300, the length of each guide plate 301 is 10cm, a water outlet hole 302 is formed in the connecting position of each guide plate 301 and the water distributor 300, the width of each water outlet hole 302 is 5mm, and the included angle between each guide plate 301 and the water distributor tank body 304 is 15 degrees. Water distribution holes 303 with the diameter of phi 5mm are uniformly distributed on the left circular plate surface and the right circular plate surface of the water distributor 300, and the distance between every two water distribution holes 303 is 10cm. The sewage and the first and second external circulation sewage are sprayed out from the water distribution holes 303 and the water outlet holes 302 of the guide plate after being uniformly mixed in the cavity of the water distributor 300. The distance from the bottom of the inner return pipe 250 to the top of the water distributor 300 is 30cm.
The COD, BOD and SS of the wastewater treated by the HIC anaerobic reactor are respectively less than or equal to 1200mg/L, 800mg/L and 220mg/L respectively. Compared with the traditional IC anaerobic reactor, the HIC anaerobic reactor of the embodiment realizes the severe disturbance of muddy water in the transverse and vertical three dimensions, the mass transfer is uniform, and the blockage is avoided due to the special design of the water distributor. The higher ascending velocity of flow in anaerobic reaction zone makes the muddy water in whole region mix evenly, and the mass transfer is fast, and system shock resistance is strong, and sewage treatment effect is stable, and the system operation lasts stably.
Example 2
Designed flow of 5000m of food wastewater 3 And d, the COD of the inlet water after the front end pretreatment is 10000-12000 mg/L, the BOD is 4500-5400 mg/L, the B/C ratio is 0.45, and the suspended matters are 600-800 mg/L.
The basic contents of this embodiment are the same as embodiment 1, except that: the ratio of the bottom cross-sectional area to the top cross-sectional area of the second anaerobic reaction zone 130 is 1.35. The first circulation port 121 is provided at a position 0.75m below the first three-phase separator 210, and the second circulation port 131 is provided at a position 0.75m below the second three-phase separator 220.
In the embodiment, the ascending flow velocity in the area below the first circulation port 121 is 18m/h, the ascending flow velocity from the first circulation port 121 to the bottom of the second anaerobic reaction zone 130 is 9m/h, and the ascending flow velocity at the position of the second circulation port 131 of the second anaerobic reaction zone 130 is 7.2m/h.
In this embodiment, 9 baffles 301 are uniformly distributed on the circumferential surface of the horizontal rotary water distributor 300, the length of each baffle 301 is 15cm, and the included angle between each baffle 301 and the water distributor tank 304 is 23 °. The connection position of the guide plate 301 and the water distributor 300 is provided with a water outlet hole 302, and the width of the water outlet hole 302 is 8mm. The left circular plate surface and the right circular plate surface of the water distributor 300 are uniformly distributed with water distribution holes 303 with the diameter of 8mm, and the distance between every two water distribution holes 303 is 13cm. The distance from the bottom of the inner return pipe 250 to the top of the water distributor 300 is 40cm.
The COD, BOD and SS of the wastewater treated by the HIC anaerobic reactor are less than or equal to 1600mg/L, 1100mg/L and 260mg/L respectively. Compared with the traditional IC anaerobic reactor, the embodiment can uniformly mix the muddy water in the whole area, and has the advantages of high mass transfer speed, strong system impact resistance, stable sewage treatment effect and continuous and stable system operation.
Example 3
Designed flow 8000m for pharmaceutical wastewater 3 D, after the front end pretreatment, the COD of the inlet water is 15000-20000 mg/L, the BOD is 5250-7000 mg/L, the B/C ratio is 0.35, and the suspended matter is 200-300 mg/L.
The basic contents of this embodiment are the same as embodiment 1, except that: the ratio of the bottom cross-sectional area to the top cross-sectional area of the second anaerobic reaction zone 130 is 1.5. The first circulation port 121 is provided at a position 1.0m below the first three-phase separator 210, and the second circulation port 131 is provided at a position 1.0m below the second three-phase separator 220.
In the embodiment, the ascending flow velocity is 20m/h in the area below the first circulation port 121, the ascending flow velocity is 10m/h from the first circulation port 121 to the bottom of the second anaerobic reaction zone 130, and the ascending flow velocity is 7.5m/h at the position of the second circulation port 131 of the second anaerobic reaction zone 130.
In this embodiment, 12 baffles 301 are uniformly distributed on the circumferential surface of the horizontal rotary water distributor 300, the length of each baffle 301 is 20cm, and the included angle between each baffle 301 and the water distributor tank 304 is 30 °. The connection position of the guide plate 301 and the water distributor 300 is provided with a water outlet hole 302, and the width of the water outlet hole 302 is 10mm. Water distribution holes 303 with the diameter of 10mm are uniformly distributed on the left circular plate surface and the right circular plate surface of the water distributor 300, and the distance between every two water distribution holes 303 is 15cm. The distance from the bottom of the inner return pipe 250 to the top of the water distributor 300 is 50cm.
The COD, BOD and SS of the wastewater treated by the HIC anaerobic reactor are less than or equal to 4000mg/L, 2100mg/L and 180mg/L respectively. Compared with the traditional IC anaerobic reactor, the embodiment can uniformly mix the muddy water in the whole area, and has the advantages of high mass transfer speed, strong system impact resistance, stable sewage treatment effect and continuous and stable system operation.
The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the embodiments and examples. Other similar embodiments and examples can be obtained by those skilled in the art without inventive design without departing from the spirit of the present invention.
Claims (5)
1. An HIC anaerobic reactor, which is characterized in that: the anaerobic bioreactor comprises a reactor body (100), wherein a sludge mixing area (110), a first anaerobic reaction area (120), a second anaerobic reaction area (130) and a settling area (140) are arranged in the reactor body (100), the sludge mixing area (110) is positioned below the first anaerobic reaction area (120), the settling area (140) is positioned above the first anaerobic reaction area (120), and the second anaerobic reaction area (130) is positioned between the first anaerobic reaction area (120) and the settling area (140); the cross sectional area of the second anaerobic reaction zone (130) gradually increases from bottom to top, and the ratio of the cross sectional area of the bottom of the second anaerobic reaction zone (130) to the cross sectional area of the top of the second anaerobic reaction zone (130) is 1.2-1.5;
the sludge mixing zone (110) is internally provided with a water distributor (300), the circumferential surface of the water distributor (300) is provided with a plurality of guide plates (301), the position where each guide plate (301) is connected with the water distributor (300) is provided with a water outlet hole (302), and two side surfaces of the water distributor (300) are provided with water distribution holes (303); the water distributor (300) comprises a water distributor tank body (304), a first inlet flange (305) and a second inlet flange (306), wherein the first inlet flange (305) and the second inlet flange (306) are respectively arranged on two side surfaces of the water distributor (300) through a water distributor connecting pipe (308); the water distributor (300) is a horizontal water distributor, the water distributor (300) is shaped like a flat cylinder, and the interior of the water distributor (300) is of a cavity structure;
wherein, the bottom of the reactor body (100) is provided with a sewage inlet, the side wall of the reactor body (100) corresponding to the first anaerobic reaction zone (120) is provided with a first circulation port (121), and the side wall of the reactor body (100) corresponding to the second anaerobic reaction zone (130) is provided with a second circulation port (131); the sewage inlet is connected with a first inlet flange (305) of the water distributor (300) through the water inlet pipeline (102), the first circulation port (121) is connected with a second inlet flange (306) of the water distributor (300) through a first external circulation pipeline, and the second circulation port (131) is connected with the second inlet flange (306) of the water distributor (300) through a second external circulation pipeline; and is
The reactor is characterized in that a gas-liquid separator (103) is arranged at the top of the reactor body (100), a first three-phase separator (210) is arranged between the first anaerobic reaction zone (120) and the second anaerobic reaction zone (130), a second three-phase separator (220) is arranged between the second anaerobic reaction zone (130) and the settling zone (140), the first three-phase separator (210) is connected with the gas-liquid separator (103) through a first lifting pipe (230), the second three-phase separator (220) is connected with the gas-liquid separator (103) through a second lifting pipe (240), and the gas-liquid separator (103) is connected with the upper part of the water distributor (300) through an inner return pipe (250).
2. An HIC anaerobic reactor according to claim 1, wherein: the number of the guide plates (301) is 6-12, and the length of the guide plates (301) is 10-20 cm.
3. An HIC anaerobic reactor according to claim 1, wherein: the width of the water outlet hole (302) is 5 mm-10 mm; the diameter of the water distribution holes (303) is 5 mm-10 mm, and the distance between every two water distribution holes (303) is 10 cm-15 cm.
4. An HIC anaerobic reactor according to claim 1, wherein: the first circulation port (121) is positioned at a position of 0.5 to 1.0m below the first three-phase separator (210); the second circulation port (131) is positioned at a position of 0.5 to 1.0m below the second three-phase separator (220).
5. An HIC anaerobic reactor according to claim 1, wherein: the distance between the bottom of the inner return pipe (250) and the top of the water distributor (300) is 30-50 cm.
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| CN102531163A (en) * | 2011-12-27 | 2012-07-04 | 临邑禹王植物蛋白有限公司 | Novel high-efficiency anaerobic treatment device for soybean protein wastewater |
| CN203303705U (en) * | 2012-11-29 | 2013-11-27 | 秦皇岛莱特流体设备制造有限公司 | Horizontal combination type multilayer full-automatic filter |
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