CN107937250A - Bioreactor for soil remediation - Google Patents

Abstract

The invention discloses a bioreactor for soil remediation, which comprises a tank body, a cover body is arranged on the top of the tank body, a jacket is welded outside the tank body, a plurality of liquid-feeding joints are arranged on the cover body, and the liquid-feeding joints run through The cover extends to the inside of the tank. The cover is also provided with a feeding port, a feeding port, a spare port and an exhaust port. A feeding pin is inserted in the feeding port. There is a through hole on one side of the body, and a side-view mirror is sealed in the through hole. The bottom of the tank body is provided with a discharge port, and the cover is also provided with a stirring shaft. The upper end of the stirring shaft is driven by a motor, and the lower end of the stirring shaft extends through the cover. At the bottom of the tank, a cylindrical microporous sieve is set on the stirring shaft; an LED lighting lamp with adjustable light intensity and a light mirror are installed on the inside of the cover, and the side wall of the tank is also equipped with an overflow port, temperature Sensor interface, PH meter interface, pressure gauge port. The bioreactor for soil restoration has the advantages of simple structure, convenient use and good restoration effect.

Description

Bioreactors for Soil Remediation

Technical field:

The invention relates to a bioreactor, in particular to a bioreactor for soil restoration.

Background technique:

Extensive industrial and agricultural activities of human beings often lead to soil pollution. Common soil pollution includes heavy metal pollution and organic pollution. In recent years, countries have begun to attach importance to the control of soil pollution, and its technology has developed very rapidly. Among them, bioremediation technology is considered to have the most vitality. At present, the soil bioremediation technology adopted includes in-situ treatment, on-site treatment and bioreactor. The bioreactor can give full play to the advantages of biological methods and is the most effective treatment process in the bioremediation technology of contaminated soil. Bioreactors are usually horizontal, rotary drum, and air stripping, and can be built on the polluted site or treated off-site. The existing bioreactors for soil remediation have complex structures, high manufacturing costs, and cumbersome use, and their bioremediation effects need to be improved.

Invention content:

The technical problem to be solved by the present invention is to provide a bioreactor for soil remediation with simple structure, convenient use and good remediation effect.

The technical solution of the present invention is to provide a bioreactor for soil remediation, including a tank body, a cover body is arranged on the top of the tank body, and a jacket is welded outside the tank body. It is characterized in that: the cover body is provided with multiple A liquid-feeding joint, the liquid-feeding joint runs through the cover and extends into the tank, and the cover is also provided with a feeding port, a feeding port, a spare port and an exhaust port, and a feeding pin is inserted in the feeding port, and the tank body There is an air inlet on one side, a through hole on one side of the tank body, a side view mirror is sealed in the through hole, a discharge port is set on the bottom of the tank body, and a stirring shaft is set on the cover, and the upper end of the stirring shaft is driven by a motor , the lower end of the stirring shaft runs through the cover and extends to the lower part of the tank. There are stirring blades distributed at intervals on the stirring shaft, and a cylindrical microporous screen is set on the stirring shaft; LED lighting with adjustable light intensity is also installed on the inside of the cover. Lamp, and a light mirror arranged on one side of the tank to cooperate with the LED lighting lamp. The side wall of the tank is also provided with an overflow port, a temperature sensor interface, a PH meter interface, and a pressure gauge port. The overflow port is also equipped with a switch. Ball valve and overflow pipe.

Preferably, the inner wall and the outer wall of the tank are formed by fine polishing.

Preferably, the through hole has a rectangular structure and is arranged along the axial direction of the tank body. Convenient viewing angle

Preferably, the side view mirror has a liquid level gauge scale. Intuitive understanding of liquid level.

Preferably, there are three liquid-filling joints, and the lower ends of the liquid-filling joints are bent toward the side wall of the tank body and approached. When adding liquid, the liquid can stay along the tank wall to reduce foam generation.

Preferably, the feeding port is provided with a quick-connect joint. Easy to connect.

Preferably, the discharge port is equipped with a ball valve, and the side wall of the tank body and the bottom wall have a circular arc transition. There is no retention of the discharge material and no dead angle on the inner wall.

Preferably, permanent magnet grid screens are arranged in the feeding port and the spare port. Remove large materials and large impurities.

Preferably, the LED lighting lamp has a strip structure, and the LED lighting lamp is arranged parallel to the axial direction of the tank body. Light coverage is relatively even.

Further, the overflow pipe is arranged obliquely downward or at an elbow, and the overflow port is located near the position of the tank body 17L. .

After adopting the above structure, compared with the prior art, the present invention has the following advantages: the whole structure is simple, convenient to use, and the manufacturing cost is low, and it is convenient to add different liquids at the same time by setting a plurality of liquid feeding nozzles; the side view mirror is convenient for observation; The cylindrical microporous sieve makes the microorganisms stay for a long time, is not easy to lose, facilitates operation and management, reduces the impact load caused by stirring, maintains high activity, and makes the physical and chemical factors of aerobic biodegradation less affected; adjustable LED lighting, both It can be illuminated and the culture density can be adjusted. The setting of the light mirror is safer and more reliable. The opening of various interfaces facilitates the installation of various detection instruments and sensors, and the overflow port prevents overfilling of liquid.

Description of drawings:

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a schematic diagram of the structure of the cover.

Detailed ways:

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

As shown in Figures 1 and 2, a bioreactor for soil remediation includes a tank body 1, a cover body 2 is arranged on the top of the tank body 1, a jacket 3 is welded outside the tank body 1, and a cover body 1 is provided with There are 3 filling nozzles, which run through the cover and extend into the tank, and are bent towards the side wall of the tank and approach. The cover 1 is also provided with a feeding port 4, a feeding port 5, a spare port and a discharge port. The air port 6 and the feeding port 4 are set for quick-connect joints, the feeding port 4 and the spare port are provided with a permanent magnet grid screen, the feeding port 5 is inserted with a feeding pin, and the side of the tank body 1 is provided with an air inlet 7 One side of the tank body 1 has a rectangular through-hole, the through-hole is arranged along the axial direction of the tank body, a side-view mirror 8 is sealed in the through-hole, so as to observe at a large angle, the base of the side-view mirror 8 is welded to the edge of the through-hole It is sealed and fixed, and the side view mirror 8 has a liquid level gauge scale, which is convenient for observing the liquid level. There is a discharge port 9 at the bottom of the tank, and the discharge port 9 is equipped with a ball valve. The side wall of the tank body and the bottom wall have a circular arc transition, so that there is no dead angle in the tank body. For the convenience of cleaning, the inner and outer walls of the tank are formed by fine polishing. The cover 2 is also provided with a stirring shaft 10, the upper end of the stirring shaft 10 is driven by a motor, the lower end of the stirring shaft 10 runs through the cover and extends to the lower part of the tank body, the stirring blade 11 is arranged at intervals on the stirring shaft 10, and the stirring shaft 10 is also sleeved There is a cylindrical microporous sieve 12 with a micropore diameter less than 100nm. The inner side of the cover body 2 is also provided with an LED lighting lamp with adjustable light intensity, and a light mirror 13 arranged on one side of the tank body to cooperate with the LED lighting lamp. The LED lighting lamp is a long strip structure, and the LED lighting lamp is parallel to the tank. The body is axially arranged, and the side wall of the tank body 1 is also provided with an overflow port 14, a temperature sensor interface, a pH meter interface 15, a pressure gauge port, and the overflow port 14 is also equipped with a switch ball valve and an overflow pipe. The overflow pipe is arranged obliquely downward or at an elbow, and the overflow port 14 is located near the position of the tank body 17L. The bottom of the tank body is also provided with outriggers or a base with rollers for easy movement.

The present invention has the following advantages: the whole structure is simple, convenient to use, low in manufacturing cost, and it is convenient to add different liquids at the same time by setting multiple liquid-feeding nozzles; the side-view mirror is convenient for observation; the cylindrical microporous sieve makes the microorganisms stay for a long time , not easy to lose, easy to operate and manage, reduce the impact load caused by stirring, maintain high activity, and make the physical and chemical factors of aerobic biodegradation less affected; dimmable LED lighting can not only illuminate, but also adjust the culture density of the culture, The setting of the light mirror is safer and more reliable, the opening of various interfaces facilitates the installation of various detection instruments and sensors, and the overflow port prevents overfilling of liquid.

Claims (10)

1. a kind of bioreactor for soil remediation, including tank body, tank body top is equipped with lid, tank body external welding There is chuck, it is characterised in that：Lid is taken over equipped with multiple liquid feedings, and liquid feeding adapter is through lid and extends in tank body, lid On be further opened with charge door, material-feeding port, spare mouth and exhaust outlet, be inserted with feed supplement contact pin in material-feeding port, tank body side be equipped with into Gas port, tank body side have a through hole, and sealed set has a side-view mirror in through hole, and tank base is equipped with discharge port, on lid also Be provided with agitating shaft, agitating shaft upper end is driven by motor, and agitating shaft lower end extends to tank body lower part through lid, on agitating shaft between Every paddle is distributed with, cylindric micro-mesh is also arranged with agitating shaft；The adjustable LED of intensity that light is additionally provided with the inside of lid shines Bright lamp, and the lamp visor that tank body side coordinates with LED illumination lamp is arranged on, tank wall is further opened with overflow port, temperature passes Sensor interface, PH meters interface, gauge port, overflow port also coordinate equipped with switching ball and overflow pipe.

2. the bioreactor according to claim 1 for soil remediation, it is characterised in that：Inner tank wall and outer wall are Finishing polish is formed.

3. the bioreactor according to claim 1 for soil remediation, it is characterised in that：Through hole is rectangle knot Structure, and axially set along tank body.

4. the bioreactor according to claim 1 for soil remediation, it is characterised in that：There is liquid level on side-view mirror Count scale.

5. the bioreactor according to claim 1 for soil remediation, it is characterised in that：Liquid feeding adapter has 3, adds Liquid adapter lower end bends and approaches towards tank wall.

6. the bioreactor according to claim 1 for soil remediation, it is characterised in that：Charge door is quick union Set.

7. the bioreactor according to claim 1 for soil remediation, it is characterised in that：Discharge port is equipped with ball Valve, tank wall and bottom wall arc transition.

8. the bioreactor according to claim 1 for soil remediation, it is characterised in that：In charge door and spare mouth It is provided with permanent magnet grizzly.

9. the bioreactor according to claim 1 for soil remediation, it is characterised in that：LED illumination lamp is strip Shape structure, LED illumination lamp are axially set parallel to tank body.

10. the bioreactor according to claim 1 for soil remediation, it is characterised in that：Overflow pipe is diagonally downward Or elbow is set, overflow port is located near tank body 17L positions.