TW201616949A - Wind-driven type organism aeration apparatus - Google Patents

Abstract

A wind-driven type organism aeration apparatus is disclosed, which can be utilized to rapidly assist aerobic microorganism in decomposing pollutants and to passively guide an oxygen-containing air into an underground aeration zone for building an aerobic surrounding, allowing the original microorganism to survive and increasing the activity of the microorganism. The disclosed wind-driven type organism aeration apparatus can ingeniously promote ventilation effect and practicability, compared to conventional passive organism aeration methods which are not equipped with external air guide devices to cause poor aeration effect. Further, an inlet member and a tail pipe are utilized to increase the airflow speed and the oxygen transmission rate. A convenient flow control valve is utilized to flexibly control the relevant parameters. A rotational set and a guide fin are cooperatively utilized to increase the wind-engaging flow and prevent the polluted gas from escaping, thereby greatly enhancing the practicability of bioventing remediation method for real field remediation and pilot research. According to the pilot test, the disclosed wind-driven type organism aeration apparatus can be efficiently utilized to assist the microorganism in degrading the pollutants of diesel fuel.

Description

Wind driven bio-ventilation equipment

The invention relates to a ventilation device, and in particular to a wind driven biological ventilation device.

When the soil is polluted, we need to spend a lot of energy to rectify. It is often difficult to balance the economic benefits of remediation energy, noise generation and soil remediation.

According to the statistics of the Energy Bureau of the Ministry of Economic Affairs, as of April, 103, there were more than 2,600 gas stations in the whole station. The gas stations polluted the soil and groundwater due to old or artificial negligence. Due to the complex nature and different nature of the soil, the remediation was carried out. There are also quite a few different methods of farming, and each remediation method has an applicable environment and characteristics. Soil Vapor Extraction (SVE) is the removal of volatile organic compounds (VOCs) from soil and combustion with activated carbon or thermal catalyst. It has a better effect on VOCs removal, but It is prone to Tailing in the later stage of remediation and is not suitable for diesel pollutants with low volatility. Air Sparging is suitable for BTEX-contaminated groundwater. This method must be combined with SVE for venting layer oil and gas extraction. The heat treatment method needs to excavate the contaminated soil in the field, and transport the contaminated soil to the field for treatment or reuse. Although the soil can effectively remove the contaminated soil, the soil has lost its original characteristics after pyrolysis. , resulting in waste of soil resources.

When a gas station or refinery is contaminated, the most common remediation methods include soil gas extraction, groundwater air injection, local chemical oxidation, and ground heat treatment. But the above All kinds of methods require huge energy and funds, and may also cause secondary pollution, and even cause waste of soil resources. The biological ventilation method is a kind of biological remediation, which has the characteristics of low energy consumption, low cost and no secondary pollution. The biological ventilation method uses microorganisms to degrade organic pollutants, because the microorganisms need to adapt to the polluted environment for a long time, if not assisted by external force. Will lead to delays in the remediation period. The old passive biological ventilation method has no external air guiding device, and only uses the underground snorkel for ventilation. The poor ventilation effect can not effectively help the microorganism to degrade the pollutant. The wind driven biological ventilation device of the invention improves the intake air shortage and improves the maintenance. And the convenience of control, but also effectively improve the efficiency of pollutant degradation.

Bioremediation is the use of microbes to degrade organic matter and reduce soil The concentration of hydrocarbons in PetroChina, the biological re-cultivation method has the advantages of low treatment cost, good effect and avoiding secondary pollution. Bioventing is a kind of biological rejuvenation method. The biological ventilation method is to introduce fresh air by mechanical force or passively to the underground ventilating layer to create an aerobic environment, so that aerobic microorganisms can degrade organic pollutants. Passive biological ventilation is difficult to achieve air guidance without the use of ventilation equipment.

In view of this, the main object of the present invention is to provide a wind driven biological ventilation device which can effectively induce air into the underground ventilation layer to help degrade pollutants.

In order to achieve the above object, the present invention provides a wind driven biological ventilation device, comprising an air intake member; a rotating group having a first tube and a second tube relatively rotatable, the first tube being connected to the air inlet member An air check valve group is connected to the second tube of the rotating group.

Thereby, the relative rotation of the first tube and the second tube of the rotating group can make the air intake member turn to increase the air intake amount, and the air check valve group can prevent the lost air from entering; The invention of the wind driven biological ventilation device improves the efficiency of the biological ventilation rectification equipment and the convenience of maintenance and control, and increases the practicability of the biological ventilation rectification method in the field remediation and mode field research.

Preferably, the wind driven biological ventilation device can be divided into an automatic steering type and Fixed type, the invention can be automatically turned with the change of wind direction or can be used as a fixed type. The intake regulating valve at the end is more conducive to on-site remediation and laboratory mode field research, each component can be dismantled separately to facilitate equipment maintenance and Adjustment.

Details of the wind driven biological ventilation device provided by the present invention The structure and features will be described in detail in the subsequent embodiments. However, it should be understood by those of ordinary skill in the art that the particular embodiments of the invention are described herein.

10‧‧‧Air intake parts

20‧‧‧Adapter

30‧‧‧ tail pipe

40‧‧‧Flow control valve

50‧‧‧ Guide fins

60‧‧‧ rotating group

61‧‧‧Rotating seat

62‧‧‧Rotating the lower seat

63‧‧‧ first tube

64‧‧‧Second tube

65‧‧ ‧ Palin

66‧‧‧Steering buckle

67‧‧‧steering bolt

68‧‧‧ rope fastening buckle

70‧‧‧Air check valve group

71‧‧‧Air check valve seat

72‧‧‧Air check valve seat

73‧‧‧Air check valve tube

74‧‧‧Upper partition

75‧‧‧ lower partition

76‧‧‧ mesh support

77‧‧‧Backstop film

80‧‧‧Test tube

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a combined view of a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view of a rotating set of a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of an air check valve assembly in accordance with a preferred embodiment of the present invention.

Figure 4 is a test chart of one embodiment of the present invention.

Figure 5 is another test chart of an embodiment of the present invention.

The technical contents and features of the present invention will be described in detail below with reference to the accompanying drawings, in which: FIG. 1 to FIG. 3, all components of the wind driven biological ventilation device of the present embodiment Can be dismantled and replaced separately, including air inlet (10), adapter (20), tail pipe (30), flow control valve (40), guide fin (50), rotating group (60), steering fixed Buckle (66), air check valve group (70) and the detection tube (80), etc., the original parts of each part are as shown in Fig. 1. The assembly of the wind driven biological ventilation device of the present embodiment is to connect one end of the parallel end of the adapter (20) to the air inlet member (10), and the other end to the tail pipe (30), the flow control valve (40) and the guide fin (50), the vertical end of the adapter (20) is connected to the rotating group (60), the air check valve group (70) and the detecting tube (80), and can be installed in the underground snorkel after assembly (not shown) Above, a rope fixing buckle (68) is arranged under the rotating group (60), and can be fixed by the rope fixing buckle (68) after the installation is completed.

The air inlet part (10) is designed as a horn type, and the intake end is large to guide the surrounding area in a wide range. When the gas enters the system, the tail end of the air inlet member (10) is reduced from the original diameter of 12 inches to a diameter of 2 inches. The air flow rate is accelerated by the shrink tube design, the air flow rate in the ventilation system is increased, and the ventilation influence radius is enlarged. (10) The stainless steel material can be used to prevent the air inlet member (10) from being easily deformed and to achieve a weight balance with the tail pipe (30). The tail pipe (30) is reduced to a diameter of 1.5 inches, increasing the resistance of the air to the tail pipe (30) so that the air can naturally lead to the underground ventilation layer. The tail pipe (30) is made of PP material, and the PP plastic is stronger than other plastic materials. It is lighter in weight and can support the weight of the flow control valve (40) and the guide fins (50) without damage to the equipment due to excessive weight.

In this embodiment, the adapter (20) has a T shape, and the air check valve group (70) utilizes a weight. The difference between the force and the air pressure is turned on as the design of the air check valve, and the detecting tube (80) has a Y shape.

The flow control valve (40) can adjust the split ratio according to the ventilation demand, and the flow control valve (40) The full air flow to the tail pipe (30) has less resistance, which can reduce the ventilation; the flow control valve (40) is fully closed, and the collected air can be completely led to the ventilation layer to increase the ventilation. The invention can also be used to control the inlet flow rate adjustment experimental parameters by means of a flow control valve (40) for laboratory studies.

The wind driven biological ventilation device of the embodiment belongs to an automatic steering type when the environment When the wind direction changes, the guiding fins (50) receive wind blowing from different directions, which will drive the rotating group (60) to change the intake direction and improve the perimeter wind guiding efficiency. In this embodiment, the wind driven biological ventilation device is made of a light weight and strong material, but it is generally difficult to support the ventilation device. Weight, so the present invention designs a rotating group (60) consisting of two Palin. The rotating group (60) is mounted on the vertical end of the adapter (20), and the other end is connected to the air check valve group (70). The rotating group (60) of the present invention is disassembled as shown in Fig. 2, and the rotating group ( 60) is divided into a rotating upper seat (61), a rotating lower seat (62), a first pipe (63), a second pipe (64) and a Palin (65) and the like. The assembly of the rotating group (60) is to fix the second tube (64) to the rotating lower seat (62), fix the inner sides of the two Palin (65) to the second tube (64), and the outer side is fixed to the first Inside the tube (63), the first tube (63) is then fixed to the rotating upper seat (61). The second tube (64) is fixed to the rotating lower seat (62), the first tube (63) is fixed in the rotating upper seat (61), and the first tube (63) is connected by the Palin (65), and the lower seat (62) is rotated. ) Rotating the upper seat (61) can be rotated in both directions, thereby designing to increase the weight of the load and to smoothly rotate the biological ventilation device.

In addition, it also includes steering fixed buckle (66), steering fixing bolt (67), rope A cable fixing buckle (68) is provided for positioning to prevent rotation of the rotating group (60).

To prevent the volatilization of polluted gases in the remediation area or by the white effort (Bernoulli) principle In the polluted environment, the present invention designs an air check valve group (70) to prevent volatile gas from escaping. The air check valve group (70) is installed below the rotating group (60), and the Y-type gas detecting tube (80) is connected below the air check valve group (70). The air check valve group (70) of the present invention comprises an air check valve upper and lower seat (71, 72), an air check valve tube (73), two semicircular upper and lower partition plates (74, 75), and a mesh support frame ( 76) and components such as the backstop film (77). For the assembly of the air check valve group (70), the two semi-circular upper and lower partition plates (74, 75) are respectively fixed to the upper right and the lower left side of the air check valve tube (73), and the upper and lower partition plates (74, 75). Connected by a mesh support frame (76), one end of the check film (77) is fixed between the upper partition plate (74) and the mesh support frame (76), and the cross-sectional view of the air check valve group (70) is as shown in Fig. 3. As shown, the backstop film (77) will be closed when there is no wind, to avoid the escape of volatile gases. When air enters, the film (77) will open slightly to allow air to flow in, to prevent the escape of polluted gases and allow fresh air to enter. purpose.

The wind driven biological ventilation device of the invention is applied to the diesel contaminated mode field In the test, it has been proved to be effective in helping microorganisms in the soil to degrade diesel pollutants. Ventilation test is Taking the oxygen concentration in the remediation area as the basis for judging the ventilation capacity, the faster the oxygen concentration is increased, the better the ventilation effect. The ventilation group was subjected to biological ventilation using the apparatus of the present invention, and the blank control group did not use the apparatus of the present invention, and the test results are shown in Fig. 4. It was found from the ventilation test that the oxygen concentration in the remediation area could reach 21% in the short-term treatment group, and the oxygen concentration in the blank control group would take 21 days to increase the oxygen concentration to 20%. It is proved that the present invention can create an aerobic environment in a short time and maintain the oxygen concentration at 21%.

The auxiliary microbial degradation test was divided into two groups, a group of remediation groups and a group of blank control groups. The remediation group used the apparatus of the present invention for biological ventilation rectification, and the initial concentration of diesel pollution was 23,044 mg/kg. The remediation group uses the present invention for biological ventilation rectification, and the test results are shown in Fig. 5. From the test results, it can be seen from the test results that the concentration of the pollution concentration in the test period of the 35th test period (C/ C ₀ ) can be reduced to 0.27, and the diesel degradation efficiency is significantly improved compared with the blank control group.

It is summarized above that the present invention has the following advantages: the wind driven biological ventilation device of the present invention utilizes natural wind power to guide into the underground ventilating layer to cause aerobic microorganisms to degrade organic matter. Since the present invention uses natural wind power, it is not like machinery. Ventilation equipment consumes energy and saves a lot of energy and reduces noise generation compared to common soil gas extraction methods. The invention adopts the biological re-cultivation method, and almost does not bring about secondary pollution, and does not destroy the original nature of the soil after re-cultivation, and can maintain the original soil resources. The invention belongs to the on-site remediation, so it can be used for rectification without the need for complete shutdown when the pollution site of the gas station is in operation, and the equipment is low in cost and easy to install, and can be easily combined with other remediation methods to facilitate the remediation. low cost. In the mode field test, the high concentration of diesel pollutants can be reduced to 0.27 in only 35 days, and the degradation rate is fast. The invention can effectively increase the oxygen concentration in the remediation area and increase the activity of the diesel decomposing microorganisms. The invention has the characteristics of easy equipment installation, low energy consumption, no secondary pollution, convenient operation, on-site remediation and rapid degradation, etc. Progressive environmental engineering green design.

In addition to the foregoing embodiments, the present invention can also be arbitrarily matched or replaced to implement the following various aspects: for example, the air check valve group (70) can also be switched on in the air intake member (10) and the rotating group (60). Alternatively, the detection tube (80) can turn on the air check valve group (70) or the rotating group (60).

In summary, the wind-driven biological ventilation device of the present invention can effectively induce air into the underground ventilation layer to help degrade pollutants, thereby achieving the object of the present invention. The invention can provide an organic pollution soil on-site remediation mode, does not need to be excavated and treated, has the characteristics of low energy consumption, low cost, high efficiency and no secondary pollution, and meets the goal of green rectification, and is practical in the environmental engineering field. Practical invention of sex, novelty and progress.

10‧‧‧Air intake parts

20‧‧‧Adapter

30‧‧‧ tail pipe

40‧‧‧Flow control valve

50‧‧‧ Guide fins

60‧‧‧ rotating group

70‧‧‧Air check valve group

80‧‧‧Test tube

Claims (10)

A wind driven biological ventilation device comprises: an air inlet member (10); a rotating group (60) having a first tube (63) and a second tube (64) for relative rotation, the first tube ( 63) is connected to the air inlet member (10); an air check valve group (70) is connected to the second tube (64) of the rotating group (60). The wind driven biological ventilation device of claim 1, wherein the air inlet member (10) has a flare shape in which the intake end is larger than the end. The wind driven biological ventilation device of claim 1, wherein the first tube (63) of the rotating group (60) is an outer tube and the second tube (64) is an inner tube. The wind driven biological ventilation device of claim 1, wherein the rotating group (60) pivots its first tube (63) and the second tube (64) with a Palin (65). The wind driven bioventilating device of claim 1, comprising a steering pin (67) for positioning to prevent rotation of the rotating set (60). The wind driven biological ventilation device of claim 1, wherein the air check valve group (70) is opened as a design of an air check valve by using gravity and air pressure difference. A wind driven biological ventilation device according to claim 1, comprising a detection tube (80) for switching the air check valve group (70) or the rotating group (60). The wind driven biological ventilation device of claim 1, wherein the connection of the air inlet member (10) to the rotating group (60) is by a adapter (20). The wind driven biological ventilation device of claim 1, comprising a tail pipe (30) communicating with the air intake member (10), and a flow regulating member (40) connecting the tail pipe (30). A wind driven biological ventilation device according to claim 1, comprising a tail pipe (30) communicating with the air intake member (10), and a guide fin (50) being disposed on the tail pipe (30).