Efficient anaerobic denitrification device

Abstract

An efficient anaerobic denitrification device comprises a device body, the device body is a hollow box body, anaerobic active strains are placed in the box body, a water inlet pipe is arranged at one end of the box body, a water outlet pipe is arranged at the other end of the box body, and a three-phase separator for discharging generated gas out of the box body is arranged on the side edge of the water outlet pipe. Baffle plates are fixedly installed on the two sides in the box body in a staggered mode, a plurality of sludge discharging pipes are arranged on the lower end face in the box body, and electromagnetic valves are arranged on the sludge discharging pipes. During use, wastewater is fed into the box body through the water inlet pipe, the contact time of biological strains and pollutants in the wastewater is prolonged under the action of the baffle plate, so that the biological treatment efficiency is improved, finally, the treated wastewater is discharged through the water outlet pipe, and methane generated in the box body is discharged through the three-phase separator. And after a period of time, the valve can be closed to stop feeding water into the box body, and the switch is turned on to open the electromagnetic valve, so that the used anaerobic active bacteria in the box body are discharged through the sludge discharge pipe.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, in particular to a high-efficiency anaerobic denitrification device. Background Art

[0002] Anaerobic bioreactor is a kind of bioreactor that uses anaerobic microorganisms as carriers to degrade organic matter in wastewater through microbial metabolism. Existing anaerobic bioreactors are often water tank structures or carbon steel anti-corrosion towers, but common anaerobic bioreactor equipment has some difficult to solve problems: usually, the tower structure of anaerobic bioreactor equipment is complex to manufacture and process, the cost is high, and the high-altitude tower structure maintenance personnel are also very dangerous; however, the water tank structure of anaerobic bioreactor equipment has a simple structure, but the biological strains have a short contact time with pollutants in the wastewater, and the biological treatment efficiency is low. Utility Model Content

[0003] In view of the above, the utility model provides a high-efficiency anaerobic denitrification device to solve the problems raised in the above background technology.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a high-efficiency anaerobic denitrification device, including a device body, the device body is an internally hollow box, inside the box are placed anaerobic active bacteria that react biologically with organic matter, nitrogen-containing matter, and phosphorus-containing matter in wastewater to degrade the concentration of pollutants, one end of the box is provided with an inlet pipe for discharging wastewater into the box, the other end of the box is provided with an outlet pipe for discharging treated wastewater, the side of the outlet pipe is provided with a three-phase separator for discharging generated gas out of the box, and the two sides of the box are staggered and fixedly installed with a plurality of The invention discloses a baffle plate for increasing the contact time between biological bacteria and pollutants in wastewater, the baffle plate divides the box into multiple independent water collecting spaces, each baffle plate has a water opening at one end, and adjacent water openings are staggered up and down in sequence to allow water to flow in a baffled manner; a plurality of mud discharge pipes for discharging sludge are arranged on the lower end surface of the box body, and a plurality of the mud discharge pipes are provided with solenoid valves for opening or closing the mud discharge pipes; when in use, wastewater enters the box body from the water inlet pipe, the water flows in a baffled state and is discharged through the water outlet pipe, and the generated gas is discharged through the three-phase separator.

[0005] Furthermore, a switch for opening or closing the electromagnetic valve is arranged outside the box, and an output end of the switch is connected to an input end of the electromagnetic valve. When the electromagnetic valve is opened, the sludge in the box can be discharged through the sludge discharge pipe.

[0006] Furthermore, the box is provided with a power line connected to an external power source, and the output end of the power line is respectively connected to the input end of the three-phase separator and the input end of the switch, and provides electrical energy thereto after the power is turned on.

[0007] Furthermore, an openable and closable cover is provided above the box, one end of the cover is movably connected to the box, and anaerobic active bacteria can be added into the box by opening the cover.

[0008] Furthermore, the number of the mud discharge pipes is not less than three, and more can be added according to actual conditions.

[0009] Furthermore, the box body and the baffles are both made of anti-corrosion materials, which prolongs the service life of the box body and the baffles.

[0010] Furthermore, a valve for opening or closing the water inlet pipe is arranged on the side of the water inlet pipe. Closing the valve stops water from flowing into the box, whereas opening the valve continues water from flowing into the box.

[0011] The beneficial effects of the utility model are as follows: the main body of the device is a box body with a pool structure, which is simple to manufacture and process, has low cost, and is relatively safe and convenient to maintain in the later stage. A baffled structure is adopted in the box body, thereby increasing the contact time between the biological strains and the pollutants in the wastewater and improving the efficiency of the biological treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view cutaway view of the present utility model.

[0013] Figure 2 It is a top view cutaway view of the present utility model.

[0014] exist Figure 1-Figure 2 Among them, 1. box body, 2. anaerobic active bacteria; 3. water inlet pipe; 4. water outlet pipe; 5. three-phase separator; 6. baffle; 7. mud discharge pipe; 8. solenoid valve; 9. switch; 10. power cord; 11. cover; 12. valve; 13. water outlet. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and some implementation methods.

[0016] exist Figure 1-Figure 2In the invention, a high-efficiency anaerobic denitrification device is provided, including a device body, wherein the device body is a hollow box body 1, and inside the box body 1 are placed anaerobic active bacteria 2 which react biologically with organic matter, nitrogen-containing substances, and phosphorus-containing substances in wastewater to degrade the concentration of pollutants. The anaerobic active bacteria 2 are common anaerobic bacteria, such as KRD special bacteria series anaerobic granular sludge, etc., which need to be replaced and added with new anaerobic active bacteria 2 at regular intervals, and the used anaerobic active bacteria 2 also need to be cleaned after being used for a period of time. An inlet pipe 3 for discharging wastewater into the box body 1 is provided at one end of the box body 1, and an outlet pipe 4 for discharging treated wastewater is provided at the other end of the box body 1. A three-phase separator 5 for discharging generated gas out of the box body 1 is provided on the side of the outlet pipe 4. A plurality of baffles 6 for increasing the contact time between the biological bacteria and the pollutants in the wastewater are staggered and fixedly installed on both sides of the box body 1, and the baffles 6 divide the box body 1 into a plurality of independent water collecting spaces, and each baffle 6 is provided with water outlets 13 at one end in turn, and adjacent water outlets 13 are provided at one end of each baffle 6. The water inlets 13 are staggered up and down in sequence to allow the water to flow in a baffled manner; the baffle 6 is an ordinary partition, which can be fixed on both sides of the box body 1 by nuts or the like. The number of baffles 6 installed varies according to the size of the box body 1. The larger the box body 1, the more baffles 6 are installed, and vice versa. Wastewater enters the box body 1 through the water inlet pipe 3. Under the action of the baffle 6, the contact time between the biological bacteria and the pollutants in the wastewater is increased, thereby improving the efficiency of biological treatment. Finally, the treated wastewater is discharged through the outlet pipe 4, and the methane generated in the box body 1 is discharged through the three-phase separator 5. A plurality of mud discharge pipes 7 for discharging sludge are arranged on the lower end surface of the box body 1. The mud discharge pipe 7 is used to discharge the used anaerobic active bacteria 2, and a plurality of the mud discharge pipes 7 are provided with solenoid valves 8 for opening or closing the mud discharge pipe 7. When in use, wastewater enters the box body 1 from the water inlet pipe 3, the water flows in a baffled state and is discharged through the outlet pipe 4, and the generated gas is discharged through the three-phase separator 5.

[0017] In this embodiment, a switch 9 for opening or closing the electromagnetic valve 8 is provided outside the box 1, and the output end of the switch 9 is connected to the input end of the electromagnetic valve 8. When the electromagnetic valve 8 is opened, the anaerobic active bacteria 2 in the box 1 that need to be cleaned can be discharged through the mud discharge pipe 7.

[0018] In this embodiment, the box 1 is provided with a power cord 10 connected to an external power supply, and the output end of the power cord 10 is respectively connected to the input end of the three-phase separator 5 and the input end of the switch 9, and provides electrical energy to the switch 9 and the three-phase separator 5 after the power is turned on.

[0019] In this embodiment, an openable and closable cover 11 is provided above the box body 1, and one end of the cover body 1 is movably connected to the box body 1 and can be connected by a hinge. When the cover body 11 is opened, anaerobic active bacteria 2 can be added into the box body 1, or the auxiliary mud discharge pipe 7 can be used to clean the used anaerobic active bacteria 2.

[0020] In this embodiment, the number of the mud discharge pipes 7 is not less than three, and can be added according to actual conditions. The box body 1 with different numbers of mud discharge pipes 7 can be manufactured during factory manufacturing. Generally, the larger the box body 1, the more mud discharge pipes 7 are required, and vice versa.

[0021] In this embodiment, the box body 1 and the baffle plate 6 are both made of anti-corrosion materials, such as PP material, fiberglass material, etc., to extend the service life of the box body 1 and the baffle plate 6.

[0022] In this embodiment, a valve 12 for opening or closing the water inlet pipe 3 is provided on the side of the water inlet pipe 3 . Closing the valve 12 stops water from flowing into the box body 1 , whereas closing the valve 12 allows water to continue flowing into the box body 1 .

[0023] In this embodiment, the principle of the present application is that when wastewater containing pollutants enters the box 1 from the water inlet pipe 3, according to the structure in the box 1, the water flows out of the box 1 in a baffled state. The box 1 is rich in a large number of anaerobic active bacteria 2. The bacteria react biologically with organic matter, nitrogen-containing substances, and phosphorus-containing substances in the wastewater to degrade the concentration of pollutants. The anaerobic biological reaction is a state of hydrolysis, acidification, acetic acid production, and methane production. The methane produced by biological decomposition needs to be discharged from the box 1. The biogas is discharged to the outside of the box 1 through the three-phase separator 5 designed at the end, and the treated wastewater is discharged through the outlet pipe 4.

[0024] In this embodiment, the solenoid valve 8 is a common solenoid valve device, such as a 4V series solenoid valve.

[0025] In this embodiment, the three-phase separator 5 is a common three-phase separator device, such as a UOP30 three-phase separator, a UASB three-phase separator, and the like.

[0026] In this embodiment, the control circuit of the utility model is a common circuit in the circuit field. The utility model is connected to an external power supply or a built-in battery to provide power for the device. Technicians in the relevant technical field can implement it and will not be described in detail here.

[0027] During the specific implementation of the utility model, when in use, the power cord 10 is connected to the external power supply, the cover 11 is opened to add the anaerobic active bacteria 2 into the box body 1, wastewater enters the box body 1 through the water inlet pipe 3, and the wastewater flows to the water outlet pipe 4 through the water opening 13 under the action of the baffle 6, thereby increasing the contact time between the biological bacteria and the pollutants in the wastewater, thereby improving the efficiency of the biological treatment, and finally the treated wastewater is discharged through the water outlet pipe 4, and the methane generated in the box body 1 is discharged through the three-phase separator 5. After a period of use, the valve 12 can be closed to stop the water from entering the box body 1, and the switch 9 is turned on to open the solenoid valve 8, so that the used anaerobic active bacteria 2 in the box body 1 are discharged through the mud discharge pipe 7.

[0028] It is worth noting that: in the description of the present utility model, the meaning of "multiple" is two or more than two, unless otherwise clearly and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; the circuits described in the present utility model are all commonly used circuits in the field, and other related components are all existing commonly used components. For ordinary technicians in the field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A high-efficiency anaerobic denitrification device, comprising a device body, characterized in that: The main body of the device is a hollow box, in which anaerobic active bacteria are placed to react biologically with organic matter, nitrogen-containing substances and phosphorus-containing substances in wastewater to degrade the concentration of pollutants. An inlet pipe for discharging wastewater into the box is arranged at one end of the box, and an outlet pipe for discharging treated wastewater is arranged at the other end of the box. A three-phase separator for discharging generated gas out of the box is arranged on the side of the outlet pipe. Several baffles for increasing the contact time between biological bacteria and pollutants in wastewater are staggered and fixedly installed on both sides of the box. The baffles divide the box into multiple independent water collection spaces. A water outlet is left at one end of each baffle in turn, and adjacent water outlets are staggered up and down in turn to allow water to flow in a baffled manner; a plurality of mud discharge pipes for discharging sludge are arranged on the lower end surface of the box, and a plurality of said mud discharge pipes are all provided with solenoid valves for opening or closing the mud discharge pipes; when in use, wastewater enters the box from the inlet pipe, the water flows in a baffled state and is discharged through the outlet pipe, and the generated gas is discharged through the three-phase separator.

2. A high-efficiency anaerobic denitrification device according to claim 1, characterized in that: A switch for opening or closing the electromagnetic valve is arranged outside the box, and an output end of the switch is connected to an input end of the electromagnetic valve.

3. A high-efficiency anaerobic denitrification device according to claim 1, characterized in that: The box body is provided with a power line connected to an external power source, and an output end of the power line is respectively connected to an input end of the three-phase separator and an input end of the switch.

4. A high-efficiency anaerobic denitrification device according to claim 1, characterized in that: An openable and closable cover is arranged above the box body, and one end of the cover body is movably connected to the box body.

5. The high-efficiency anaerobic denitrification device according to claim 1, characterized in that: The number of the mud discharge pipes is not less than three.

6. A high-efficiency anaerobic denitrification device according to claim 1, characterized in that: The box body and the baffle are both made of anti-corrosion materials.

7. The high-efficiency anaerobic denitrification device according to claim 1, characterized in that: A valve for opening or closing the water inlet pipe is arranged on the side of the water inlet pipe.

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