CN209923136U - a biofilm reactor - Google Patents

Abstract

The utility model discloses a biofilm reactor, comprising a filter box and an electrolysis box. A casing is fixedly installed on the upper end of the filter box, a baffle is sealed and slidable in the casing, and a telescopic hose is passed through the middle of the baffle. , the bottom end of the telescopic hose is connected with a liquid outlet pipe, the bottom end of the liquid outlet pipe is connected with a liquid outlet tray, the bottom end of the liquid outlet tray is provided with a plurality of liquid outlet holes, and the bottom of the water inlet pipe is in the filter box from top to bottom A first filter screen, a second filter screen and a biofilm filter screen are fixedly connected in sequence at the bottom, an electrolysis box is arranged on the right side of the filter box, and a first graphite rod and a second graphite rod are fixedly connected to the top of the electrolysis box. A water outlet pipe is connected to one side of the bottom end. The utility model first adopts the method of adjusting pH to make the heavy metal particles carry out preliminary precipitation, and then adopts the method of electrolysis to make the remaining particles precipitate again.

Description

a biofilm reactor

technical field

The utility model relates to the field of electroplating wastewater treatment, in particular to a biological membrane reactor.

Background technique

Industrial wastewater is one of the difficult problems in modern production. Electroplating wastewater is very harmful to the environment, and electroplating wastewater contains a lot of heavy metal particles.

Heavy metal particles in electroplating wastewater generally cannot be decomposed and destroyed, but can only be transferred or converted into other forms of matter. Modern heavy metal particle treatment methods generally use chemical precipitation, reverse osmosis membrane and other treatment methods. Hydroxide is added to the wastewater to form precipitation. This precipitation method is difficult to completely treat the heavy metal particles in the wastewater. Although the reverse osmosis membrane has a good treatment effect, the process is complicated and the cost of the reverse osmosis membrane is high.

Therefore, in view of the problems raised in the above background technology, those skilled in the art propose a novel biofilm reactor.

Utility model content

The purpose of the present invention is to provide a biofilm reactor to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A biofilm reactor includes a filter box, an electrolysis box and a connecting water pipe, a shell is fixedly installed on the upper end of the filter box, a baffle is sealed and slidable in the shell, and the lower side of the baffle is communicated with an inlet on the shell. The liquid pipe, the upper end of the baffle is connected with the output end of the lifting cylinder on both sides, and the middle part of the baffle is provided with a telescopic hose; the top of the telescopic hose is communicated with the inside of the casing, and the bottom end of the telescopic hose is communicated with an outlet. a liquid pipe; the bottom end of the liquid discharge pipe is connected with a liquid discharge tray, and the bottom end of the liquid discharge tray is provided with a plurality of liquid discharge holes; the upper end of the filter box is connected with a water inlet pipe, and the lower part of the water inlet pipe is in the filter box. A first filter screen, a second filter screen and a biofilm filter screen are fixedly connected in sequence from top to bottom in the box, and the mesh apertures of the first filter screen, the second filter screen and the biofilm filter screen gradually decrease in turn; the The right side of the filter box is provided with an electrolysis box, the electrolysis box and the filter box are communicated through a connecting water pipe, and a water pump is connected to the connecting water pipe; the top of the electrolysis box is fixedly connected with a first graphite rod and a second graphite rod, the first The graphite rod is connected to the positive electrode of the battery through a wire, and the second graphite rod is connected to the negative electrode of the battery through a wire; a driving motor is fixedly installed at the bottom of the electrolytic box, the output end of the driving motor is connected with a rotating shaft, and the top of the rotating shaft is fixedly connected There is a rotating plate, and four rotating rods are evenly distributed around the top of the rotating plate; a water outlet pipe is communicated with one side of the bottom end of the electrolysis box.

Further, the left and right sides of the baffle plate are provided with through holes.

Further, the lift cylinder is fixedly installed on the top of the housing.

Further, the top of the telescopic hose is fixedly connected with a limiting ring.

Further, the rotating shaft is vertically arranged in the inner middle of the electrolysis box.

Further, the rotating rod and the rotating disk are vertically connected.

Further, an exhaust port is provided on the top surface of the electrolysis box.

Compared with the prior art, the beneficial effect of the present utility model is: adding PH adjusting reagent into the shell through the liquid inlet pipe, adding sewage into the filter box through the water inlet pipe, and controlling the baffle to slide downward through the lifting cylinder, so that the baffle plate can be controlled to slide down. The pH adjusting reagent at the lower end of the plate is extruded from the through hole, and then the reagent is sprayed out from the liquid outlet hole on the liquid outlet plate through the telescopic hose and the liquid outlet pipe. Compared with the traditional valve switch, the waste is effectively reduced. The sewage after adjusting the pH is successively filtered through the first filter screen, the second filter screen and the biofilm filter screen, and then the sewage enters the electrolysis box, and the power is turned on. The metal particles are adsorbed on the second graphite rod, and the stirring of the rotating rod can speed up the reduction of the metal particles in the water. The device first adopts the method of adjusting the pH to make the heavy metal particles precipitation, and then adopts the method of electrolysis to make the remaining particles again. Precipitation, precipitation is complete, and the Chen Ben is low, suitable for promotion.

Description of drawings

Figure 1 is a schematic structural diagram of a biofilm reactor.

FIG. 2 is a schematic structural diagram of a shell in a biofilm reactor.

Figure 3 is a top view of a rotating disk in a biofilm reactor.

Detailed ways

The technical solution of the present patent will be described in further detail below in conjunction with specific embodiments.

1-3, a biofilm reactor includes a filter box 6, an electrolysis box 24, and a connecting water pipe 11. The upper end of the filter box 6 is fixedly installed with a casing 1, and the casing 1 is sealed and slidably provided with a stopper The plate 21, the lower side of the baffle 21 is connected with the liquid inlet pipe 20 on the housing 1, the upper end of the baffle 21 is connected with the output end of the lifting cylinder 18 on both sides, and the middle of the baffle 21 is provided with a telescopic hose 23; The top of the telescopic hose 23 is communicated with the inside of the housing 1, and the bottom end of the telescopic hose 23 is connected with a liquid outlet pipe 2; the bottom end of the liquid outlet pipe 2 is connected with a liquid outlet tray 3, and the The bottom end is provided with a plurality of liquid outlet holes 4; the upper end side of the filter box 6 is connected with a water inlet pipe 25, and the lower part of the water inlet pipe 25 is fixedly connected with the first filter screen 5, The mesh apertures of the second filter screen 8, the biofilm filter screen 9, the first filter screen 5, the second filter screen 8 and the biofilm filter screen 9 gradually decrease in turn; the right side of the filter box 6 is provided with an electrolysis box 24, the electrolysis box 24 and the filter box 6 are communicated through the connecting water pipe 11, and the water pump 10 is connected to the connecting water pipe 11; the top of the electrolysis box 24 is fixedly connected with the first graphite rod 12 and the second graphite rod 13, the first The graphite rod 12 is connected to the positive electrode of the battery through a wire, and the second graphite rod 13 is connected to the negative electrode of the battery through a wire; the bottom of the electrolytic box 24 is fixedly installed with a driving motor 15, and the output end of the driving motor 15 is connected with a rotating shaft 14, The top of the rotating shaft 14 is fixedly connected with a rotating disk 16 , and four rotating rods 7 are evenly distributed around the top of the rotating disk 16 ;

As mentioned above, the through holes 19 are formed on the left and right sides of the baffle plate 21 .

As mentioned above, the lift cylinder 18 is fixedly installed on the top of the housing 1 .

As mentioned above, the top of the telescopic hose 23 is fixedly connected to the limiting ring 22 .

As mentioned above, the rotating shaft 14 is vertically arranged in the inner middle of the electrolysis box 24 .

As mentioned above, the rotating rod 7 and the rotating disk 16 are connected vertically.

An exhaust port is opened on the top surface of the electrolysis box 24 .

The biofilm filter screen 9 is composed of a plastic filter screen carrier and a biofilm filler carrier, and the biofilm filler carrier is used to carry the biofilm components.

The working principle of the utility model is as follows: add pH adjusting reagent into the housing 1 through the liquid inlet pipe 20, add sewage into the filter box 6 through the water inlet pipe 25, and control the baffle plate 21 to slide downward through the lifting cylinder 18, so that the baffle plate 21 is controlled to slide down through the lifting cylinder 18. The pH adjusting reagent at the lower end of the plate 21 is extruded from the through hole 19, and then the reagent is sprayed from the liquid outlet hole 4 on the liquid outlet tray 3 through the telescopic hose 23 and the liquid outlet pipe 2. By adjusting in this way, it can be controlled slowly. Compared with the traditional valve switch, the amount of reagent added can effectively reduce waste. The sewage after adjusting the pH is successively filtered through the first filter screen 5, the second filter screen 8 and the biofilm filter screen 9, and then the sewage enters the In the electrolysis box 24, when the power is turned on, the metal particles in the sewage are adsorbed on the second graphite rod 13, and the reduction of the metal particles in the water can be accelerated by the stirring of the rotating rod 7.

The preferred embodiments of the present patent have been described in detail above, but the present patent is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, the present invention can also be made without departing from the purpose of the present patent. Various changes.

Claims (6)

1. A biofilm reactor comprises a filter box, an electrolytic tank and a connecting water pipe, and is characterized in that a shell is fixedly installed at the upper end of the filter box, a baffle is arranged in the shell in a sealing and sliding manner, a liquid inlet pipe is communicated with the shell at the lower side of the baffle, the two sides of the upper end of the baffle are connected with the output end of a lifting cylinder, and a flexible hose penetrates through the middle of the baffle; the top of the flexible hose is communicated with the inside of the shell, and the bottom end of the flexible hose is communicated with a liquid outlet pipe; the bottom end of the liquid outlet pipe is communicated with a liquid outlet disc, and a plurality of liquid outlet holes are formed in the bottom end of the liquid outlet disc; a water inlet pipe is communicated with one side of the upper end of the filter box, a first filter screen, a second filter screen and a biomembrane filter screen are fixedly connected in the filter box from top to bottom below the water inlet pipe, and the mesh apertures of the first filter screen, the second filter screen and the biomembrane filter screen are gradually reduced in sequence; an electrolytic tank is arranged on the right side of the filter tank, the electrolytic tank is communicated with the filter tank through a connecting water pipe, and a water pump is connected to the connecting water pipe; the top of the electrolytic tank is fixedly connected with a first graphite rod and a second graphite rod, the first graphite rod is connected with the anode of the battery through a lead, and the second graphite rod is connected with the cathode of the battery through a lead; a driving motor is fixedly installed at the bottom of the electrolytic tank, the output end of the driving motor is connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with a rotating disc, and four rotating rods are uniformly distributed on the periphery of the top end of the rotating disc; one side of the bottom end of the electrolytic tank is communicated with a water outlet pipe; an exhaust port is formed in the top surface of the electrolytic tank.

2. A biofilm reactor according to claim 1, wherein the baffles are perforated on both the left and right sides.

3. A biofilm reactor according to claim 1, wherein said lifting cylinder is fixedly mounted on top of the housing.

4. A biofilm reactor according to claim 1, wherein the top of the flexible hose is fixedly connected with a stop collar.

5. A biofilm reactor according to claim 1, wherein the axis of rotation is arranged vertically in the middle inside the electrolytic tank.

6. A biofilm reactor according to claim 1, wherein the turning rods are connected perpendicularly to the turning discs.

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