CN113800630A - Anaerobic expansion bed device for treating high-concentration organic wastewater - Google Patents

Anaerobic expansion bed device for treating high-concentration organic wastewater Download PDF

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Publication number
CN113800630A
CN113800630A CN202010544922.4A CN202010544922A CN113800630A CN 113800630 A CN113800630 A CN 113800630A CN 202010544922 A CN202010544922 A CN 202010544922A CN 113800630 A CN113800630 A CN 113800630A
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water outlet
anaerobic
water
expanded bed
tank
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CN113800630B (en
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张宾
王珺
程学文
莫馗
李海龙
高凤霞
侯秀华
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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    • 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
    • C02F3/2806—Anaerobic processes using solid supports for microorganisms
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations

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  • 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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

An anaerobic expanded bed apparatus for treating high concentration organic wastewater, comprising: the anaerobic expanded bed reactor is provided with a packing layer and a water outlet area, wherein the side wall of the water outlet area, which is higher than the bottom of the water collecting tank, is provided with an overflow weir, the overflow weir is provided with a water outlet hole, and the aperture of the water outlet hole is smaller than the outer diameter of the packing; the bottom of the reactor is provided with a water inlet, and the side wall of the water collecting tank is provided with a water outlet; the water outlet is communicated with the bottom of the side wall of the anaerobic water outlet tank, and a circulating drainage pipeline is arranged on the side wall of the anaerobic water outlet tank and is connected to the water inlet; and the feed barrel is connected to the circulating water drainage pipeline through a pipeline. The invention can intercept most biological fillers by utilizing the overflow weir with water outlet holes at the top of the reactor, so that the circulating water pipeline is completely isolated from the biological fillers, and the filler is effectively prevented from being lost in a large amount in the normal operation or backwashing process; a small-sized rotary slag remover arranged at the top of the reactor is used for cleaning water outlet holes, keeping a circulating water path smooth and realizing a long-term stable semi-automatic operation mode of the system.

Description

Anaerobic expansion bed device for treating high-concentration organic wastewater
Technical Field
The invention belongs to the technical field of chemical industry and environmental protection, and further relates to an anaerobic expansion bed device for treating high-concentration organic wastewater.
Background
In recent years, the treatment of high-concentration organic wastewater in the field of water treatment has become one of the social hotspots. With the increasing of eutrophication problem of water body in China and the improvement of sewage discharge standard in the future, the removal of COD (Chemical Oxygen Demand) is always one of the key problems in the field of water treatment. How to economically, efficiently and safely remove COD in water and continuously improve the quality of the effluent water becomes the content of urgent need in the field of sewage treatment.
The anaerobic biological treatment process has low energy consumption, high organic volume load, less residual sludge, low nutrient requirement of anaerobic bacteria, strong toxicity resistance and high molecular weight of degradable organic matters. In recent years, the anaerobic sewage treatment process is developed rapidly, and various new processes and new methods are continuously appeared, including an anaerobic contact method, an upflow anaerobic sludge blanket, a baffle type anaerobic method, an anaerobic biofilter, an anaerobic expanded bed and a fluidized bed, and a third-generation anaerobic process EGSB and an IC anaerobic reactor, wherein the traditional IC reactor has the advantages of impact resistance, high influent concentration and the like, and becomes a research hotspot, but granular sludge is easy to break under the condition of obvious influent water quality fluctuation, and the starting period is longer; the novel AEB anaerobic expanded bed process is industrialized, and takes a biological carrier as a core, namely a certain amount of filler with density close to water is added into a reactor, so that a habitat is provided for the growth of microorganisms, the biomass and the biological species in the reactor are improved, and the treatment efficiency of the reactor is further improved. The AEB anaerobic expanded bed filler medium continuously moves in the sewage and is uniformly mixed with the sewage, and the efficiency is far higher than that of a fixed bed; the smaller the filler medium particles are, the larger the surface area of the filler medium particles is, and the higher the efficiency of the reactor is; the lower the filler density is, the lower the upflow speed required by fluidization is, the lower the operation cost is, the larger the water inlet pressure of the existing downward flow reactor is, the operation cost is greatly increased, and the operation and maintenance are not facilitated; the water distribution system of the conventional anaerobic expanded bed treatment device needs to be cleaned frequently and kept smooth, and particularly when the reactor runs in an overload state, the phenomenon of filter material blockage is easy to occur, and the adverse effects on water inlet distribution and wastewater treatment effect are generated.
Disclosure of Invention
The invention aims to solve the technical defects that part of biological filler is mixed into a circulating pipeline to cause pipeline blockage and even destroy a water and gas distribution system at the bottom of a reactor, and the overflow weir with a water outlet hole at the top of the reactor is utilized to intercept most of the biological filler while water is passed, so that the circulating pipeline is completely isolated from the biological filler, and the loss of a large amount of the filler in the normal operation or backwashing process is effectively avoided; in addition, utilize the small-size rotatory slagging-off machine of reactor top installation for wash the apopore, keep the circulating water route unblocked, realize the long-term stable semi-automatization operational mode of system.
To achieve the above objects, the present invention provides an anaerobic expanded bed apparatus for treating high concentration organic wastewater, comprising:
the anaerobic expanded bed reactor is internally provided with a packing layer, a water outlet area is communicated above the packing layer, a water collecting tank is arranged on the periphery of the top of the water outlet area, an overflow weir is arranged on the side wall of the water outlet area higher than the bottom of the water collecting tank, at least one water outlet hole is arranged on the overflow weir, and the aperture of the water outlet hole is smaller than the outer diameter of the packing; a water inlet is formed in the bottom of the anaerobic expanded bed reactor, and a water outlet is formed in the side wall of the water collecting tank;
the water outlet of the anaerobic water outlet tank is communicated with the bottom of the side wall of the anaerobic water outlet tank, a circulating drainage pipeline is further arranged on the upper portion of the side wall of the anaerobic water outlet tank, and the circulating drainage pipeline is connected to a water inlet at the bottom of the anaerobic expanded bed reactor;
and the feeding barrel is connected to the circulating drainage pipeline through a pipeline, and a feeding pump is arranged on the pipeline connected with the feeding barrel.
In a preferred embodiment, a top cover is arranged at the top of the water collecting tank, a motor/speed reducer all-in-one machine is arranged above the top cover, an output shaft of the motor/speed reducer all-in-one machine is connected with one end of a middle shaft, and the other end of the middle shaft penetrates through the top cover and is connected with a three-phase separator located in the water outlet area.
In a preferred embodiment, at least one rotating arm is further arranged at the position, corresponding to the height position of the overflow weir, of the central shaft, a brush is arranged at the free end of the rotating arm, and the length of the rotating arm is enough to enable the brush to clean sludge and fillers adhered to the water outlet hole.
In a preferred embodiment, the central shaft is provided with at least one air outlet hole at a position higher than the height of the overflow weir, and the diameter of the air outlet hole is larger than the outer diameter of the packing.
In a preferred embodiment, a top cover is arranged at the top of the water collecting tank, an exhaust port is arranged on the top cover, the exhaust port and one of the three-way passages connected with the water outlet are converged and communicated with an air outlet pipeline of the top cover of the anaerobic water outlet tank, and then communicated with the gas-liquid separation tank and the gas metering tank in sequence, and finally the exhaust port is controlled by an electromagnetic valve to be discharged.
In a preferred embodiment, the anaerobic expanded bed reactor is externally sleeved with a jacket, and the anaerobic expanded bed reactor is connected with a loop consisting of a heating tank and a heating pump in the section of the packing layer.
In a preferred embodiment, a circulating pump is arranged on the circulating water discharging pipeline.
In a preferred embodiment, a sludge discharge port is arranged on the side wall of the water outlet area close to the lower part.
In a preferred embodiment, the bottom of the anaerobic expanded bed reactor is also provided with an air inlet.
In a preferred embodiment, the middle shaft is of a hollow structure, an upper oil seal sealing ring is arranged at a position where the middle shaft penetrates through the top cover, and a lower oil seal sealing ring is arranged at a connection position of the middle shaft and the three-phase separator.
The invention has the beneficial effects that:
(1) the packing layer adopts fine particle packing (the outer diameter of the packing is 2 mm-3 mm), the specific surface area is large, the microbial biomass in the packing per unit volume can be effectively improved, and the volume load of the reactor is further improved;
(2) the packing layer is in an expansion state during normal operation, so that a water flow short circuit possibly generated by the fixed bed is avoided, the flow state of a solid phase and a liquid phase is favorable for the contact and mass transfer of microorganisms and sewage, and the biological reaction efficiency is improved;
(3) the overflow weir can ensure that no biological filler enters the bottom of the reactor from the circulating system, thereby reducing the possibility of damaging the water and gas distribution system at the bottom of the reactor by the filler, simultaneously greatly reducing the possibility of damaging the circulating pump and blocking a circulating pipeline caused by the biological filler entering the circulating system, and effectively avoiding the loss of a large amount of filler in the normal operation or backwashing process;
(4) a small rotary deslagging system arranged at the top of the reactor is used for cleaning water outlet holes, so that a circulating water channel is kept smooth, and a long-term stable semi-automatic operation mode of the system is realized;
(5) the anaerobic expander has the advantages of large height-diameter ratio, small occupied area, high sewage treatment efficiency, strong shock resistance, short retention time, simple and convenient operation, high economic benefit and wide application prospect.
Drawings
FIG. 1 is a schematic representation of an anaerobic expanded bed apparatus and process flow according to the present invention;
FIG. 2 is a front view of a tower head according to the present invention;
FIG. 3 is a front view of a weir according to the present invention.
Description of reference numerals: 1. anaerobic expanded bed reactor, 2, air inlet, 3, water inlet, 4, fixed station, 5, jacket, 6, packing layer, 7, three-phase separator, 8, lower oil seal sealing ring, 9, middle shaft, 10, air outlet, 11, upper oil seal sealing ring, 12, coupling, 13, overflow weir, 14, rotating arm, 15, brush hair, 16, motor/speed reducer all-in-one machine, 17, air outlet, 18, water outlet, 19, sludge discharge port, 20, sampling port, 21, anaerobic water outlet tank, 22, heating tank, 23, heating pump, 24, circulating pump, 25, feeding barrel, 26, feeding pump, 27, gas-liquid separation tank, 28, gas metering tank, 29, electromagnetic valve, 30, top cover, 31, water outlet, 32, water collecting tank, 33, water outlet area, 34, rack, 35, air chamber.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
Referring to fig. 1, 2 and 3, the present invention provides an anaerobic expanded bed apparatus for treating high concentration organic wastewater, which mainly comprises: the anaerobic expanded bed reactor 1, the anaerobic water outlet tank 21, the feed barrel 25, the gas-liquid separation tank 27, the gas metering tank 28 and the like.
The anaerobic expanded bed reactor 1 is fixed on the ground through a fixing platform 4, so that the bottom of the anaerobic expanded bed reactor 1 is at a certain height from the ground. The bottom of the anaerobic expanded bed reactor 1 is provided with an air inlet 2, preferably a nitrogen inlet, so that the anaerobic expanded bed reactor can be conveniently used for backwashing of a filler hanging membrane in the reactor. In addition, the bottom of the anaerobic expanded bed reactor 1 is also provided with two water inlets 3, preferably circulating water inlets.
The anaerobic expanded bed reactor 1 is internally provided with a packing layer 6, most organic matters are fully contacted with microorganisms in the area and are removed by biochemical reaction, the microorganisms leading the biochemical reaction are attached to carrier particles in a form of a biological film, and the carrier particles are in an expanded state under the action of ascending water flow, so that the effect of removing COD under high load is realized. In the preferred embodiment, the filler can be selected from AMC biological carrier, or self-made biological carrier, and its bulk density is slightly higher than the density of water. The particle size of the filler is preferably 2-3 mm.
In addition, the anaerobic expanded bed reactor 1 is externally sleeved with a jacket 5, and the anaerobic expanded bed reactor 1 is connected with a loop consisting of a heating tank 22 and a heating pump 23 in a section of the packing layer 6, and is used for controlling the temperature in the reactor together with the jacket 5.
A water outlet area 33 is communicated with the upper part of the packing layer 6, the water outlet area 33 is a container with a truncated cone-shaped bottom, and a water collecting tank 32 is arranged on the periphery of the top of the water outlet area 33. The radial dimension of the water collecting tank 32 is greater than the radial dimension of the water outlet area 33, the bottom of the water collecting tank 32 is lower than the top of the water outlet area 33, the sidewall of the water outlet area 33, which is higher than the bottom of the water collecting tank 32, is provided with the overflow weir 13, the overflow weir 13 is provided with the water outlet holes 31 (as shown in fig. 3) which are uniformly distributed, the aperture of the water outlet hole 31 is slightly smaller than the outer diameter of the filler, and the liquid level in the anaerobic expanded bed reactor 1 is slightly lower than the overflow weir 13 under normal conditions, so that the filler is prevented from losing. Preferably, the water outlet hole 31 can be a round hole or a square hole, and the diameter of the water outlet hole 31 is preferably 1-1.5 mm.
In addition, a water outlet 18 is provided on a side wall of the water collecting tank 32 for discharging water overflowing the overflow weir 13. A sludge discharge port 19 is provided on the side wall of the water outlet zone 33 near the lower part for periodically performing a sludge discharge operation on the inside of the reactor. The anaerobic expanded bed reactor 1 is also provided with a sampling port 20 on the side wall of the section of the packing layer 6, and the sampling port is used for sampling and analyzing an effluent water sample during operation.
The top of the water collecting tank 32 is provided with a top cover 30, a rack 34 is arranged above the top cover 30 and used for mounting the motor/speed reducer integrated machine 16, and an output shaft of the motor/speed reducer integrated machine 16 is connected with the middle shaft 9 through a coupling 12. The middle shaft 9 is of a hollow structure and is made of stainless steel materials or other materials. The middle shaft penetrates through a corresponding round hole in the top cover 30 to enter the reactor, the diameter of the round hole in the top cover 30 is slightly larger than that of the middle shaft 9 so as to facilitate the middle shaft to penetrate through, and an upper sealing ring 11 is arranged at the round hole to block the outside air. In addition, the lower end of the middle shaft 9 is communicated with the top of the upper baffle plate of the three-phase separator 7 positioned in the water outlet area 33, and preferably, the middle shaft 9 is connected with the top of the upper baffle plate of the three-phase separator 7 in a sealing manner through a lower oil seal ring 8. The three-phase separator 7 has an upper and lower cover structure, and the space above the three-phase separator 7 in the water outlet zone 33 is an air chamber 35. Preferably, the inner diameter of the middle shaft 9 is 8-15 mm, and the rotating speed range of the middle shaft 9 is 0-40 r/min.
At least one rotating arm 14, such as two symmetrically arranged rotating arms or three rotating arms arranged at equal angles, is further arranged at the position of the central shaft 9 at the height corresponding to the overflow weir 13, a brush 15 is arranged at the free end of the rotating arm 14, and the length of the rotating arm 14 is sufficient for the brush 15 to be capable of cleaning sludge and fillers adhered to the water outlet hole 31. Preferably, the brush 15 may be made of stainless steel or nylon, and preferably has a length of 1-2 mm slightly passing through the water outlet hole. In addition, the single running time of the brush 15 is 20 s-60 s, and the intermittent time is 10 min-1 h.
The central shaft 9 is provided with at least one gas outlet 10 at a level above the weir 13, from which liquid can be discharged by gas lift and re-enter the reactor. Preferably, the air outlet 10 may be circular, square, or other shapes. The quantity of venthole can be two, also can four, and the diameter of venthole should be greater than the filler external diameter, prevents to pack to block up the punchhole, and the preferred 8 ~ 10mm in venthole aperture size, in addition, the venthole 10 is followed the position down and should be higher than overflow weir 13 top to avoid being blocked.
An exhaust port 17 is arranged on a top cover 30 of the anaerobic expanded bed reactor 1, the exhaust port 17 can be converged with one of three-way passages connected with a water outlet 18 by a hose (not shown in the figure), is communicated with an exhaust pipeline of the top cover of the anaerobic water outlet tank 21, is sequentially communicated with a gas-liquid separation tank 27 and a gas metering tank 28, is finally controlled to be exhausted by an electromagnetic valve 29 through metering of the gas metering tank 28, and is used for achieving gas phase pressure balance of each device by utilizing gas generation. And the other path of the tee joint connected with the water outlet 18 is communicated with the bottom of the side wall of the anaerobic water outlet tank 21 so as to discharge water to the anaerobic water outlet tank 21.
And the upper part of the side wall of the anaerobic water outlet tank 21 is also provided with a circulating drainage pipeline which is connected to the water inlet 3 at the bottom of the anaerobic expanded bed reactor 1 through a pipeline. Preferably, the pipeline is provided with a circulating pump 24, so that the liquid in the anaerobic water outlet tank 21 is pressurized and then enters the anaerobic expanded bed reactor 1, and then flows upwards to enter the packing layer 6. In addition, the feeding barrel 25 is connected to a pipeline between the anaerobic water outlet tank 21 and the water inlet 3 through a pipeline, and a feeding pump 26 is arranged on the pipeline connected with the feeding barrel 25.
The anaerobic expanded bed reactor 1, the anaerobic water outlet tank 21, the feed barrel 25, the gas-liquid separation tank 27, the gas metering tank 28 and the like can be made of glass, organic glass or other materials.
The wastewater treatment process in the anaerobic expanded bed biochemical process of the invention is as follows:
high concentration COD waste water is placed in the feed tank 25, through the mixture of charge pump 26 with the backward flow water that anaerobism goes out water pitcher 21 and discharges, after the pressure boost of circulating pump 24, get into anaerobism expanded bed reactor 1 from water inlet 3, later upward flow gets into reactor packing layer 6, most organic matters all fully contact and take place biochemical reaction and can get rid of with the microorganism in this region, the microorganism that leads biochemical reaction is attached to on the carrier particle with the form of biomembrane, the carrier particle is in the expanded state under the effect of rising rivers, realize that the COD effect is got rid of to the high load. The reacted liquid and other substances upwards enter the water outlet area, and the liquid level in the reactor is slightly lower than the overflow weir 13 under normal conditions, so that the filler loss can be effectively prevented. Under the action of the motor/reducer all-in-one machine 16, the central shaft 9 is driven to rotate so as to drive the three-phase separator 7 to rotate, so that substances in a water outlet area are separated, liquid in the liquid sequentially passes through one of the passages of the overflow weir 13 and the water outlet 18 and enters the anaerobic water outlet tank 21, and then the liquid in the anaerobic water outlet tank 21 is pressurized by the circulating pump 24 so as to flow back to the anaerobic expanded bed reactor 1; the gas in the gas chamber enters the gas chamber 35 through the central shaft 9 and is discharged through the gas outlet 17, the discharged gas is converged with the gas overflowing from the tee joint connected with the water outlet 18, then is converged with the gas discharged from the anaerobic water outlet tank 21, flows through the gas-liquid separation tank 27, is metered by the gas metering tank 28, and is finally discharged under the control of the electromagnetic valve 29, and the gas phase pressure balance of each device is achieved by using the generated gas; the solids and the sludge and filler cleaned by the brush 15 from the water outlet hole 31 of the overflow weir 13 are discharged through the sludge outlet 19.
In conclusion, compared with the traditional process, the AEB anaerobic expanded bed device has the following beneficial effects:
(1) the packing layer adopts fine particle packing (the outer diameter of the packing is 2 mm-3 mm), the specific surface area is large, the microbial biomass in the packing per unit volume can be effectively improved, and the volume load of the reactor is further improved;
(2) the packing layer is in an expansion state during normal operation, so that a water flow short circuit possibly generated by the fixed bed is avoided, the flow state of a solid phase and a liquid phase is favorable for the contact and mass transfer of microorganisms and sewage, and the biological reaction efficiency is improved;
(3) the overflow weir can ensure that no biological filler enters the bottom of the reactor from the circulating system, thereby reducing the possibility of damaging the water and gas distribution system at the bottom of the reactor by the filler, simultaneously greatly reducing the possibility of damaging the circulating pump and blocking a circulating pipeline caused by the biological filler entering the circulating system, and effectively avoiding the loss of a large amount of filler in the normal operation or backwashing process;
(4) a small rotary deslagging system arranged at the top of the reactor is used for cleaning water outlet holes, so that a circulating water channel is kept smooth, and a long-term stable semi-automatic operation mode of the system is realized;
(5) the anaerobic expander has the advantages of large height-diameter ratio, small occupied area, high sewage treatment efficiency, strong shock resistance, short retention time, simple and convenient operation, high economic benefit and wide application prospect.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. An anaerobic expanded bed apparatus for treating high concentration organic wastewater, comprising:
the anaerobic expanded bed reactor is internally provided with a packing layer, a water outlet area is communicated above the packing layer, a water collecting tank is arranged on the periphery of the top of the water outlet area, an overflow weir is arranged on the side wall of the water outlet area higher than the bottom of the water collecting tank, at least one water outlet hole is arranged on the overflow weir, and the aperture of the water outlet hole is smaller than the outer diameter of the packing; a water inlet is formed in the bottom of the anaerobic expanded bed reactor, and a water outlet is formed in the side wall of the water collecting tank;
the water outlet of the anaerobic water outlet tank is communicated with the bottom of the side wall of the anaerobic water outlet tank, a circulating drainage pipeline is further arranged on the upper portion of the side wall of the anaerobic water outlet tank, and the circulating drainage pipeline is connected to a water inlet at the bottom of the anaerobic expanded bed reactor;
and the feeding barrel is connected to the circulating drainage pipeline through a pipeline, and a feeding pump is arranged on the pipeline connected with the feeding barrel.
2. The anaerobic expanded bed device for treating high-concentration organic wastewater according to claim 1, wherein a top cover is arranged at the top of the water collecting tank, a motor/speed reducer all-in-one machine is arranged above the top cover, an output shaft of the motor/speed reducer all-in-one machine is connected with one end of a central shaft, and the other end of the central shaft penetrates through the top cover and is connected with a three-phase separator positioned in the water outlet area.
3. The anaerobic expanded bed device for treating high concentration organic wastewater as claimed in claim 2, wherein at least one rotating arm is further provided at the position of the central shaft corresponding to the height of the overflow weir, the free end of the rotating arm is provided with a brush, and the length of the rotating arm is long enough to enable the brush to clean sludge and fillers adhered to the water outlet hole.
4. The anaerobic expanded bed device for treating high concentration organic wastewater as claimed in claim 2, wherein the central shaft is provided with at least one air outlet hole at a height position higher than the overflow weir, and the diameter of the air outlet hole is larger than the outer diameter of the packing.
5. The anaerobic expansion bed device for treating high-concentration organic wastewater according to claim 1, wherein a top cover is arranged at the top of the water collecting tank, an exhaust port is arranged on the top cover, and the exhaust port is converged with one of the three-way passages connected with the water outlet, communicated with an exhaust pipeline of the top cover of the anaerobic water outlet tank, sequentially communicated with the gas-liquid separation tank and the gas metering tank, and finally controlled by an electromagnetic valve to be discharged.
6. The anaerobic expanded bed device for treating high-concentration organic wastewater according to any one of claims 1 to 5, wherein a jacket is sleeved outside the anaerobic expanded bed reactor, and the anaerobic expanded bed reactor is connected with a loop consisting of a heating tank and a heating pump in a section of the packing layer.
7. An anaerobic expanded bed apparatus for treating high concentration organic wastewater according to any one of claims 1 to 5, wherein a circulation pump is provided on the circulation drain line.
8. An anaerobic expanded bed apparatus for the treatment of high concentration organic wastewater according to any of claims 1 to 5, wherein the side wall of the effluent zone near the lower part is provided with a sludge discharge port.
9. The anaerobic expanded bed apparatus for treating high concentration organic wastewater according to any one of claims 1 to 5, wherein the bottom of the anaerobic expanded bed reactor is further provided with an air inlet.
10. The anaerobic expansion bed device for treating high-concentration organic wastewater according to any one of claims 2 to 4, wherein the central shaft is of a hollow structure, an upper oil seal sealing ring is arranged at a position where the central shaft penetrates through the top cover, and a lower oil seal sealing ring is arranged at a joint of the central shaft and the three-phase separator.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1908595A (en) * 2006-08-08 2007-02-07 寿焕根 Automatic metering device for oil, water and gas three-phase flow
KR20130091125A (en) * 2012-02-07 2013-08-16 인하대학교 산학협력단 Waste water treatment system by two stage anaerobic reactors coupled with nitrogen removal process
CN105776759A (en) * 2016-04-18 2016-07-20 浙江艾摩柯斯环境科技有限公司 Alkalinity self-regulating efficient anaerobic iron oxidation denitrification reactor and method thereof
CN106430566A (en) * 2016-10-29 2017-02-22 大连碧蓝节能环保科技有限公司 Double filler and self-cleaning anaerobic expanded bed bioreactor
CN106698655A (en) * 2015-11-18 2017-05-24 中国石油化工股份有限公司 Wastewater denitrification nitrogen removal treatment device and method
CN108017158A (en) * 2016-11-01 2018-05-11 中国石油化工股份有限公司 A kind of dual-purpose wastewater treatment Biological expanded bed device and process of aerobic-anoxic
CN110963566A (en) * 2018-09-29 2020-04-07 中国石油化工股份有限公司 Treatment device for high-nitrate-nitrogen wastewater and application thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1908595A (en) * 2006-08-08 2007-02-07 寿焕根 Automatic metering device for oil, water and gas three-phase flow
KR20130091125A (en) * 2012-02-07 2013-08-16 인하대학교 산학협력단 Waste water treatment system by two stage anaerobic reactors coupled with nitrogen removal process
CN106698655A (en) * 2015-11-18 2017-05-24 中国石油化工股份有限公司 Wastewater denitrification nitrogen removal treatment device and method
CN105776759A (en) * 2016-04-18 2016-07-20 浙江艾摩柯斯环境科技有限公司 Alkalinity self-regulating efficient anaerobic iron oxidation denitrification reactor and method thereof
CN106430566A (en) * 2016-10-29 2017-02-22 大连碧蓝节能环保科技有限公司 Double filler and self-cleaning anaerobic expanded bed bioreactor
CN108017158A (en) * 2016-11-01 2018-05-11 中国石油化工股份有限公司 A kind of dual-purpose wastewater treatment Biological expanded bed device and process of aerobic-anoxic
CN110963566A (en) * 2018-09-29 2020-04-07 中国石油化工股份有限公司 Treatment device for high-nitrate-nitrogen wastewater and application thereof

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