CN110078200B

CN110078200B - Biofilm reactor for low-temperature biofilm formation

Info

Publication number: CN110078200B
Application number: CN201910326153.8A
Authority: CN
Inventors: 刘叶; 张语航
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2021-06-11
Anticipated expiration: 2039-04-22
Also published as: CN110078200A

Abstract

The invention discloses a biofilm reactor for low-temperature film hanging. A suspended filler is arranged in the reactor main body, a cavity and a water collection cavity are set in the suspended filler, and a hot water pipe is used to connect the cavity and the water collection cavity. The circulating hot water is supplied inside, and the metal sheets on the surface of the suspended fillers have strong thermal conductivity, thereby ensuring the temperature near the suspended fillers, so that the microorganisms in the reaction chamber have a suitable living environment. When the air blowing from the blowing port drives the suspended filler to rotate, the free microorganisms in the reaction chamber can grow on the metal sheet, and the suspended filler and the fluff on the surface of the metal sheet can also absorb microorganisms, which makes the device easier to achieve film hanging.

Description

Biofilm reactor for low-temperature biofilm formation

Technical Field

The invention relates to a biofilm reactor, in particular to a biofilm reactor for low-temperature biofilm formation.

Technical Field

With the continuous development of the sewage biological treatment technology, the biofilm method is widely applied, wherein a Moving Bed Biofilm Reactor (MBBR) is the most widely and efficiently applied treatment technology in the biofilm technology and is widely applied to domestic sewage, food wastewater, papermaking wastewater, petroleum wastewater, pharmaceutical wastewater and other industrial wastewater.

The existing biofilm reactor has low microbial activity in the reactor under low temperature conditions, and is difficult to survive on the surface of a carrier in a large amount, so that the biofilm reactor cannot realize biofilm formation under the low temperature conditions or is difficult to form biofilm.

Disclosure of Invention

The invention aims to provide a biofilm reactor for low-temperature biofilm formation, which solves the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

a biofilm reactor for low-temperature biofilm formation comprises a reactor main body, wherein a sealing cover is detachably arranged at the top of the reactor main body, two water guide pipes are fixedly arranged on one side of the reactor main body, one water guide pipe is connected with one ends of a water suction pipe and a water return pipe, the other ends of the water suction pipe and the water return pipe are connected with a hot water pool, and a water pump is arranged on the water suction pipe; the other water guide pipe is connected with a water pump, the other end of the water pump is connected with a water tank and a dosing tank through a water pipe, and control valves are arranged on the water pipes;

a plurality of suspended fillers are placed in the reactor main body, each suspended filler is connected with a hot water conveying line, a plurality of wiring holes are formed in the top of the reactor main body, and the hot water conveying lines penetrate through the wiring holes and are communicated with the water pumping pipes;

a water collecting cavity is formed in the suspension filler, a cavity is formed between the water collecting cavity and the inner wall of the suspension filler, and the water collecting cavity is communicated with the cavity through a water guide hole; the hot water conveying line comprises a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is communicated with the water collecting cavity, the other end of the water inlet pipe is communicated with the water pumping pipe, one end of the water outlet pipe is communicated with the cavity, the other end of the water outlet pipe is communicated with the water return pipe, and the water inlet pipe and the water outlet pipe are fixedly connected to the suspension filler through connectors;

the outer surface of the suspension filler extends outwards to be connected with a plurality of metal sheets, and the outer surfaces of the metal sheets and the suspension filler are provided with fluff.

Furthermore, a sludge discharge port and a water discharge pipe are arranged at the bottom of the reactor main body.

Furthermore, an overflow port is formed in the side wall of the reactor main body close to the top.

Further, the bottom of the reactor main body is fixedly provided with an air blower, a blowing port of the air blower is communicated with the air pipe, and the bottom of the reactor main body is provided with a blowing port which is communicated with the air pipe.

Furthermore, an electric heating plate and a temperature sensor are fixedly mounted inside the hot water pool, a display screen and a control box are fixedly mounted on one side of the hot water pool, the temperature sensor is electrically connected with the display screen, and the control box is connected with the electric heating plate.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the suspended filler is arranged in the reactor main body, the cavity and the water collecting cavity are formed in the suspended filler, the hot water pipe is used for supplying circulating hot water into the cavity and the water collecting cavity, the metal sheet on the surface of the suspended filler has stronger thermal conductivity, so that the temperature near the suspended filler is ensured, and the microorganisms in the reaction chamber have a suitable living environment.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the main structure of the reactor of the present invention;

FIG. 3 is a schematic diagram of the structure of the suspended filler of the present invention;

fig. 4 is a schematic view of the hot water tank of the present invention.

In the figure: 1 is a reactor main body, 2 is a sealing cover, 3 is a blower, 4 is an air pipe, 5 is a hot water tank, 6 is a water pump, 7 is a water pumping pipe, 8 is a water return pipe, 9 is a dosing tank, 10 is a water tank, 11 is a control valve, 12 is an overflow port, 13 is a drain pipe, 14 is a wiring hole, 15 is a hot water pipe, 16 is a suspension filler, 17 is a blowing port, 18 is an electric heating plate, 19 is a heat conducting plate, 20 is a control box, 21 is a temperature sensor, 22 is a display screen, 23 is a cavity, 24 is a water collecting cavity, 25 is a water guiding hole, 26 is a metal sheet, 27 is fluff, 28 is a connector, 29 is a water inlet pipe, and 30 is a water outlet pipe.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in fig. 1 to 4, a biofilm reactor for low-temperature biofilm formation comprises a reactor main body 1, wherein a sealing cover 2 is detachably mounted at the top of the reactor main body, two water conduits are fixedly mounted at one side of the reactor main body 1, one of the water conduits is connected with one ends of a water pumping pipe 7 and a water return pipe 8, the other ends of the water pumping pipe 7 and the water return pipe 8 are connected with a hot water pool 5, and a water pump 6 is mounted on the water pumping pipe 7; the other water guide pipe is connected with a water pump 6, the other end of the water pump 6 is connected with a water tank 10 and a dosing tank 9 through water pipes, and control valves 11 are arranged on the water pipes;

a plurality of suspended fillers 16 are placed in the reactor main body, each suspended filler is connected with a hot water conveying line, a plurality of wiring holes 14 are formed in the top of the reactor main body 1, and the hot water conveying lines penetrate through the wiring holes 14 and are communicated with water pumping pipes;

a water collecting cavity 24 is formed in the suspension filler 16, a cavity 23 is formed between the water collecting cavity and the inner wall of the suspension filler, and the water collecting cavity 24 is communicated with the cavity 23 through a water guide hole 25; the hot water conveying line comprises a water inlet pipe 29 and a water outlet pipe 30, one end of the water inlet pipe 29 is communicated with the water collecting cavity, the other end of the water inlet pipe 29 is communicated with the water pumping pipe, one end of the water outlet pipe 30 is communicated with the cavity 23, the other end of the water outlet pipe is communicated with the water return pipe, and the water inlet pipe 29 and the water outlet pipe 30 are fixedly connected to the suspension filler through a connector 28;

a plurality of metal sheets 26 are extended and connected to the outer surface of the suspended filler 16, and the outer surfaces of the metal sheets 26 and the suspended filler 16 are provided with fluff 27.

The outer surface of the suspended filler 16 and the metal sheet are both made of materials with strong heat conductivity, and the temperature of hot water in the suspended filler 16 is transferred to the outer surface and the metal sheet to provide heat for microorganisms adsorbed on the outer surface and the metal sheet.

The inside fixed mounting of hot-water pond 5 has electric plate 18, heat-conducting plate 19 and temperature sensor 21, and heat-conducting plate 19 is connected at electric plate 18 top, 5 one side fixed mounting of hot-water pond has display screen 22 and control box 20, and temperature sensor 21 is connected with display screen 22 electricity, shows the temperature data that temperature sensor surveyed in real time on the display screen, and control box 20 is connected with electric plate 18, sets up the temperature that the electric plate needs the heating in the hot-water pond through the control box.

The sludge discharge port has been seted up to reactor main part 1 bottom, and sludge discharge port department installs the baffle, reactor main part 1 bottom fixed mounting has drain pipe 13, overflow mouth 12 has been seted up to reactor main part 1 upper right end. The reactor is characterized in that an air blower 3 is fixedly mounted at the bottom of the reactor main body 1, a blowing port 17 of the air blower 3 is communicated with an air pipe 4, the blowing port 17 is formed in the bottom of the reaction chamber, the blowing port 17 is communicated with the air pipe 4, and air blown by the air blower is sent into the reactor main body through the air pipe and the blowing port, so that an aerobic environment is provided for the reaction and growth of microorganisms in the reactor main body.

When the device is operated, hot water in the hot water tank is supplied into the water collecting cavity 24 of the suspended filler through the hot water pipe 15 and the water inlet pipe, the hot water entering the water collecting cavity enters the cavity through the water guide hole, the hot water in the cavity flows back to the water return pipe through the water outlet pipe and then enters the hot water tank, and the hot water circulates in the hot water tank and the suspended filler and heats the water in the hot water tank all the time, so the circulating hot water can continuously provide required temperature for the suspended filler. Fresh oxygen is fed into for reactor main part in the air-blower of reactor main part bottom, makes the microorganism in the reactor main part provide suitable living environment like this, makes this device adsorb the microorganism easily, realizes the biofilm formation easily, also more suitable microorganism growth.

Claims

1. a biofilm reactor for low temperature hanging film, is characterized in that, comprises reactor main body, the top of reactor main body is detachably installed with cover, and one side of reactor main body is fixedly installed with two water conduits, One of the water pipes is connected to one end of the suction pipe and the return pipe, the other ends of the suction pipe and the return pipe are connected to the hot water pool, and a water pump is installed on the suction pipe; The other end is connected with a pool and a dosing box through a water pipe, and a control valve is installed on the water pipe;

A plurality of suspended fillers are placed inside the reactor body, and each suspended filler is connected with a hot water conveying line, a plurality of wiring holes are opened on the top of the reactor body, and the hot water conveying line passes through the wiring holes and communicates with the suction pipe ;

A water collecting cavity is opened inside the suspended packing, and a cavity is formed between the water collecting cavity and the inner wall of the suspended packing, and the water collecting cavity is communicated with the cavity through a water guide hole; the hot water conveying line includes a water inlet pipe and a water outlet pipe, and the water inlet pipe is One end is communicated with the water collecting cavity, the other end is communicated with the suction pipe, one end of the water outlet pipe is communicated with the cavity, and the other end is communicated with the return water pipe, and the water inlet pipe and the water outlet pipe are fixedly connected to the suspension filler through the connector;

The outer surface of the suspended filler is extended and connected with a plurality of metal sheets, and the outer surfaces of the metal sheets and the suspended filler are provided with fluff.

2 . The biofilm reactor for low temperature film hanging according to claim 1 , wherein a sludge discharge port and a drainage pipe are provided at the bottom of the main body of the reactor. 3 .

3 . The biofilm reactor for low temperature film hanging according to claim 1 , wherein an overflow port is opened on the side wall of the reactor body near the top. 4 .

4. a kind of biofilm reactor for low temperature hanging film according to claim 1, is characterized in that, described reactor main body bottom is fixedly installed with blower, the blower of described blower is communicated with air duct, reactor The bottom of the main body is provided with an air outlet, and the air outlet communicates with the air duct.

5 . The biofilm reactor for low temperature film hanging according to claim 1 , wherein an electric heating plate and a temperature sensor are fixedly installed inside the hot water pool, and a display is fixedly installed on one side of the hot water pool. 6 . The screen and the control box, the temperature sensor is electrically connected with the display screen, and the control box is connected with the electric heating plate.