Oily wastewater subaudio electromagnetic wave treatment device and method

Abstract

The invention is suitable for the technical field of oily wastewater treatment, and provides a subaudio electromagnetic wave treatment device and method for oily wastewater, the subaudio electromagnetic wave treatment device comprises a container, the bottom of the container is sleeved with a bearing table, the top of the container is provided with a liquid inlet, and the bottom of the container is provided with a liquid outlet pipe; supporting rods are symmetrically arranged on the two sides of the container and the two sides of the bearing table, an oil outlet pipe is arranged on one side of the bottom of the container, a sub-audio electromagnetic wave generator is inserted into the liquid inlet, and an electric wire is connected to the top of the sub-audio electromagnetic wave generator; the treatment method comprises the following steps: pouring oil-containing wastewater into the container from the liquid inlet, starting the subaudio frequency electromagnetic wave generator, releasing subaudio frequency energy, treating for 0.1-1 hour, demulsifying, promoting oil-water separation, slowly discharging demulsified oil and wastewater into the next process through the oil outlet pipe, and discharging part of precipitated heavy oil through the liquid outlet pipe. The scheme has a demulsification effect on oil-containing wastewater, promotes oil-water separation, and improves physical oil removal capacity and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oily wastewater treatment, and in particular to a sub-audio electromagnetic wave treatment device and method for oily wastewater. Background Art

[0002] Oily wastewater mainly comes from industrial sectors such as petroleum, petrochemical, steel, coking, gas generation station, and mechanical processing. Except for heavy tar, the relative density of the oil pollutants in the wastewater is greater than 1, and the relative density of the rest is less than 1, so stratified oil removal can basically be adopted. Since many emulsified and dissolved oil pollutants in sewage are difficult to remove, water pollution and resource waste are caused.

[0003] The existing treatment methods for oily wastewater are mostly single flotation oil removal. For oil dissolved in water, only biochemical treatment can be used to purify the wastewater to meet the discharge standards, resulting in a huge waste of resources. Summary of the invention

[0004] The purpose of the present invention is to provide a sub-audio electromagnetic wave treatment device and method for oily wastewater, so as to solve the problem that most of the existing methods for treating oily wastewater are single flotation oil removal, and for the oil dissolved in water, only biochemical treatment can be used to purify the sewage to meet the discharge standards, resulting in a huge waste of resources.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: In a first aspect, the present invention provides a sub-audio electromagnetic wave treatment device for oily wastewater, comprising a container, a supporting platform is provided at the bottom of the container, a liquid inlet is provided at the top of the container, a liquid outlet is provided at the bottom of the container, support rods are symmetrically provided on both sides of the container and the supporting platform, an oil outlet is provided on one side of the bottom of the container, a sub-audio electromagnetic wave generator is inserted into the liquid inlet, and an electric wire is connected to the top of the sub-audio electromagnetic wave generator.

[0006] Preferably, a sealing plug is provided inside the liquid inlet, and the sub-audio electromagnetic wave generator passes through the sealing plug.

[0007] Preferably, a side wall of the support rod is provided with a threaded portion below the bearing platform, the threaded portion is connected with a nut, and the bottom surface of the bearing platform rests on the nut.

[0008] The second aspect of the present invention provides a method for treating oily wastewater using the device, comprising the following steps:

[0009] Pour the oily wastewater into the container from the liquid inlet, start the sub-audio electromagnetic wave generator, release the sub-audio energy, and process for 0.1 to 1 hour to break the emulsion and promote oil-water separation. The oil and wastewater after demulsification are slowly discharged into the next process through the oil outlet pipe, and some of the precipitated heavy oil is discharged from the liquid outlet pipe.

[0010] Preferably, the sub-audio electromagnetic wave frequency is 100 Hz-20 KHz.

[0011] The present invention has at least the following beneficial effects:

[0012] The present invention provides a sub-audio electromagnetic wave treatment device and method for oily wastewater. This scheme has a demulsification effect on oily wastewater, promotes oil-water separation, improves physical oil removal capacity and efficiency, realizes oil resource recovery and utilization through physical oil removal, and is beneficial to economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] In the accompanying drawings, the following are numerals: 1, container; 2, supporting platform; 3, supporting rod; 4, liquid inlet; 5, sealing plug; 6, sub-audio electromagnetic wave generator; 7, threaded portion; 8, nut; 9, liquid outlet pipe; 10, oil outlet pipe. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example 1

[0017] The present embodiment provides a sub-audio frequency electromagnetic wave treatment device for oily wastewater, comprising a container 1, a supporting platform 2 being sleeved on the bottom of the container 1, specifically, a conical groove being opened on the supporting platform 2 for supporting the container 1, a liquid inlet 4 being provided on the top of the container 1, a liquid outlet pipe 9 being provided on the bottom of the container 1, support rods 3 being symmetrically provided on both sides of the container 1 and the supporting platform 2, an oil outlet pipe 10 being provided on one side of the bottom of the container 1, a sub-audio frequency electromagnetic wave generator 6 being inserted into the liquid inlet 4, and an electric wire being connected to the top of the sub-audio frequency electromagnetic wave generator 6.

[0018] Among them, a sealing plug 5 is provided inside the liquid inlet 4, and the sub-audio electromagnetic wave generator 6 passes through the sealing plug 5. Specifically, the sealing plug 5 is made of rubber material and tightly wraps the sub-audio electromagnetic wave generator 6.

[0019] Among them, the side wall of the support rod 3 is located below the supporting platform 2 and is provided with a threaded portion 7, the threaded portion 7 is connected with a nut 8, and the bottom surface of the supporting platform 2 rests on the nut 8. Specifically, by rotating the nut 8, its height is adjusted, and then the height of the container 1 is adjusted.

[0020] Example 2

[0021] This embodiment provides a sub-audio electromagnetic wave treatment method for oily wastewater. The method is based on the device provided in Example 1, and the specific steps are as follows:

[0022] Pour the oily wastewater into the container 1 from the liquid inlet 4, plug the sealing plug 5, start the sub-audio electromagnetic wave generator 6, release the sub-audio energy, the sub-audio electromagnetic wave frequency is 100Hz-20KHz, and treat the oily wastewater in the container 1 with sub-audio waves for 0.1 to 1h to break the emulsion and promote oil-water separation. The oil and wastewater after demulsification are slowly discharged into the next process through the oil outlet pipe 10, and part of the precipitated heavy oil is discharged from the liquid outlet pipe 9.

[0023] Example 3

[0024] The device provided in the above embodiment 1 and the method provided in the above embodiment 2 were tested, and the test steps were as follows:

[0025] ①, distribute two water samples;

[0026] ② The first sample is raw water without treatment, and is used for comparison. Observe and take photos for record, and record it as sample 1;

[0027] ③. The second sample is treated with sub-audio waves using the device provided in Example 1 and the method provided in Example 2 for 1 to 24 hours. The sample is compared with the sample, observed and photographed, and recorded as Sample 2.

[0028] The test records are shown in Table 1 below:

[0029] Table 1 Test records

[0030]

[0031]

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sub-audio electromagnetic wave treatment device for oily wastewater, characterized in that: The invention comprises a container (1), wherein a supporting platform (2) is sleeved on the bottom of the container (1), a liquid inlet (4) is provided on the top of the container (1), a liquid outlet pipe (9) is provided on the bottom of the container (1), support rods (3) are symmetrically provided on both sides of the container (1) and the supporting platform (2), an oil outlet pipe (10) is provided on one side of the bottom of the container (1), a sub-audio electromagnetic wave generator (6) is inserted into the liquid inlet (4), and an electric wire is connected to the top of the sub-audio electromagnetic wave generator (6).

2. The sub-audio electromagnetic wave treatment device for oily wastewater according to claim 1 is characterized in that: A sealing plug (5) is provided inside the liquid inlet (4), and the sub-audio electromagnetic wave generator (6) passes through the sealing plug (5).

3. The sub-audio electromagnetic wave treatment device for oily wastewater according to claim 1, characterized in that: The side wall of the support rod (3) is located below the bearing platform (2) and is provided with a threaded portion (7), the threaded portion (7) is connected with a nut (8), and the bottom surface of the bearing platform (2) rests on the nut (8).

4. A method for treating oily wastewater using the device according to any one of claims 1 to 3, characterized in that: The following steps are involved: The oily wastewater is poured into the container (1) from the liquid inlet (4), and the sub-audio electromagnetic wave generator (6) is started to release sub-audio energy. The treatment is carried out for 0.1 to 1 hour to break the emulsion and promote oil-water separation. The oil and wastewater after the emulsion breaking are slowly discharged into the next process through the oil outlet pipe (10), and the precipitated heavy oil is discharged from the liquid outlet pipe (9).

5. The processing method according to claim 4, characterized in that: The sub-audio frequency of the electromagnetic wave is 100 Hz-20 KHz.

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