CN215102554U

CN215102554U - Adopt oxidation degradation device of ultrasonic wave-ozone collaborative pretreatment laboratory chemical reagent waste liquid

Info

Publication number: CN215102554U
Application number: CN202022666783.0U
Authority: CN
Inventors: 赵静; 练越; 张淮浩
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-12-10
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses an adopt supersound-ozone in coordination with preliminary treatment laboratory chemical reagent waste liquid's oxidative degradation device specifically is the preprocessing device who reduces chemical waste liquid toxicity and the processing degree of difficulty, and the device includes numerical control system, neutralization-coagulating basin, diaphragm pump, strains fence, supersound-ozone degradation groove, ultrasonic probe, ozone generator, ozone pipeline, sled dress-support, outlet valve. The device adopts an intermittent or continuous chemical waste liquid treatment mode, and chemical waste liquid is continuously subjected to the actions of air floatation separation, ultrasonic cavitation effect, ozone oxidation reaction and the like through an acid-base neutralization unit, a coagulation sedimentation unit and an ultrasonic ozone treatment unit of the device. The utility model discloses a device carries out the preliminary treatment with chemical waste liquid under effects such as above-mentioned chemistry-physics, and the COD value of the waste liquid after the processing can be reduced to 200 and 5000mg/L and metal ion's content descends by a wide margin, and the biodegradability is showing the reinforcing.

Description

Adopt oxidation degradation device of ultrasonic wave-ozone collaborative pretreatment laboratory chemical reagent waste liquid

Technical Field

The utility model relates to an adopt supersound-ozone in coordination with oxidative degradation device of preliminary treatment laboratory chemical reagent waste liquid belongs to sewage treatment process technical field.

Background

The chemical and chemical experiments are necessary courses for many professional students in various domestic comprehensive universities and industrial and scientific schools. The outline of national medium and long-term education reform and development planning (2010-2020) requires that the practice innovation ability of students is continuously improved, and students are encouraged to actively practice, develop experiments and learn from practice. Practice contents are increased according to requirements of colleges and universities, the using amount of chemical reagents is increased to a certain extent, and the number of students participating in the experiment courses is increased year by year along with extension of universities and continuous improvement of chemical experiment contents. This results in the laboratory producing more and more chemical waste, and the environmental pollution and safety problems caused thereby are not negligible.

With the improvement of environmental protection requirements, the collection and pretreatment of chemical waste liquid in a laboratory are completely new tasks for all colleges and universities in China. In recent years, many colleges and universities have been invested in research and exploration of laboratory waste liquid treatment apparatuses. However, as far as the present, there are few chemical waste liquid treatment apparatuses that can be referred to, and there are few experiences that can be referred to in each college. Particularly, no relevant patent and report is found for a pretreatment device of chemical waste liquid. The waste liquid generated in the experiment teaching of the chemical industry academy has high Chemical Oxygen Demand (COD) value and complex components, and generally contains inorganic corrosive substances, such as acid, alkali and other waste liquids; and organic compounds such as organic acids, inorganic salt ions, some heavy metal ions, other carboxyl groups, carbonyl groups, hydroxyl groups, amino groups, aromatic rings, phenols, ethers, and the like. Most of the chemical waste liquids generated in laboratories have various hazards such as toxicity, corrosiveness, explosiveness, inflammability and the like, and serious safety accidents can be caused when the chemical waste liquids are not properly treated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adopt oxidation degradation device of supersound-ozone preliminary treatment laboratory chemical reagent waste liquid in coordination is a preprocessing device to the chemical waste liquid, carries out appropriate preliminary treatment to the chemical reagent waste liquid through the device, and the biodegradability of reinforcing waste liquid reduces its impact load to conventional type waste liquid treatment device, improves the whole treatment effeciency of chemical waste liquid.

Realize the utility model aims at providing a technical scheme as follows:

an oxidative degradation device for pretreating chemical reagent waste liquid in a laboratory by adopting ultrasonic-ozone synergy comprises a numerical control system, a neutralization-coagulation tank, a diaphragm pump, a filter fence, an ultrasonic-ozone degradation tank, an ultrasonic probe, an ozone generator, an ozone pipeline, a skid-mounted support and an outlet valve; wherein, the skid-mounted bracket is provided with an ultrasonic-ozone degradation groove, and the ultrasonic-ozone degradation groove is provided with a neutralization-coagulation groove; an outlet valve with a filter fence is arranged at the bottom of the neutralization-coagulation tank; the ultrasonic-ozone degradation tank is of a sandwich structure, a plurality of ultrasonic probes are uniformly arranged in a sandwich layer, and ozone pipelines with dense holes are uniformly laid in the tank; a membrane pump and an ozone generator for feeding and discharging are fixed on the skid-mounted support; the numerical control system is connected with and controls the ultrasonic probe and the ozone generator.

Furthermore, the neutralizing-coagulating tank is made of polytetrafluoroethylene with the thickness of 1cm, the bottom of the neutralizing-coagulating tank is concave-down conical, and an outlet valve with a filter column is arranged at the conical tip.

Furthermore, the ultrasonic-ozone degradation tank is made of an interlayer stainless steel material, and the lower surface of the ultrasonic-ozone degradation tank is of an inclined structure, so that the degraded liquid is convenient to discharge and clean at a later stage.

Furthermore, the ultrasonic probes are uniformly arranged in the interlayer of the ultrasonic-ozone degradation tank, and the distance between every two ultrasonic probes is 8 cm.

Furthermore, the ultrasonic frequency of the ultrasonic-ozone degradation tank is 20-44KHz, the output power of the ultrasonic wave is 50-2000W, and the power is adjustable.

Further, ozone pipelines are laid on the bottom in the ultrasonic-ozone degradation tank, and vent holes with the diameter of 0.3cm are arranged on the pipelines at intervals of 4 cm.

Compared with the prior art, the utility model obvious advantage has:

(1) the ozone (chemical) and ultrasonic (physical) two-stage technical means are combined to achieve the effect of efficient and safe treatment. The ultrasonic wave is introduced into the ozone contact chamber, so that the ozone can be fully dispersed and dissolved, the ozone oxidation capacity is improved, and the ultrasonic cavitation effect can improve the oxidation area of the ozone. The ultrasonic radiation effect can accelerate the ozone oxidation reaction and realize the purpose of high-efficiency degradation. 2) The device adopts the ozone + ultrasonic treatment mode to be mild and controllable, and has higher safety. Compared with the traditional Fenton oxidation, the ozone is a safe oxidant, and the reaction speed of treating the organic waste liquid by adopting the ozone oxidation is high without secondary pollution. 3) The device adopts an air floatation stirring mode, so that the reaction is uniformly carried out, and compared with the traditional mechanical stirring, the air floatation stirring is safer and more environment-friendly. The device adopts the sled dress portable mode, is convenient for operate and maintain. 4) The device adopts the design of upper and lower units, and the material is transmitted between the two units in a fluid self-flowing mode. The design without external power reduces the operation difficulty and the preparation cost. 5) The neutralization-coagulation tank adopts a concave conical mode, so that the material collection and emptying and the subsequent tank body cleaning are facilitated; the bottom of the neutralization-coagulation tank is inclined, which is not only beneficial to liquid collection and discharge and tank body cleaning, but also is convenient for manual operation by arranging an outlet valve at the side, and collects the discharged liquid after treatment. 6) All additional equipment and numerical control system all adopt the buckle formula to fix, are favorable to the maintenance and the change in later stage.

Drawings

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

Fig. 2 is a schematic structural diagram of the ultrasonic-ozone degradation tank of the present invention.

1. A numerical control system; 2. a neutralization-coagulation tank; 3. a diaphragm pump; 4. filtering the fence; 5. an ultrasonic-ozone degradation tank; 6. an ultrasonic probe; 7. an ozone generator; 8. an ozone pipeline; 9. a support is skid-mounted; 10. an outlet valve.

Detailed Description

With reference to fig. 1 and 2, the present invention relates to a pretreatment device for degrading chemical reagents by ultrasound-ozone synergy, comprising: the device comprises a numerical control system 1, a neutralization-coagulation tank 2, a diaphragm pump 3, a filter fence 4, an ultrasonic-ozone degradation tank 5, an ultrasonic probe 6, an ozone generator 7, an ozone pipeline 8, a skid-mounted support 9 and an outlet valve 10. An ultrasonic-ozone degradation tank 5 is arranged on the skid-mounted support 9, a neutralization-coagulation tank 2 is arranged on the ultrasonic-ozone degradation tank 5, and a filter fence 4 is arranged at the bottom of the neutralization-coagulation tank 2 and transfers slurry to the ultrasonic-ozone degradation tank 5 through an outlet valve 10; the neutralizing-coagulating tank 2 is made of polytetrafluoroethylene with the thickness of 1cm, the bottom of the neutralizing-coagulating tank is concave-down conical, and an outlet valve 10 is arranged at the conical tip.

The ultrasonic-ozone degradation tank 5 is made of double-layer stainless steel materials, and the lower surface of the ultrasonic-ozone degradation tank is of an inclined structure, so that the degraded liquid can be conveniently discharged and cleaned in a later period. A plurality of ultrasonic probes 6 are uniformly arranged in the interlayer, the distance between every two ultrasonic probes 6 is 8cm, and ozone pipelines 8 with uniform and dense holes are laid in the grooves; an ozone pipeline 8 is laid at the bottom in the ultrasonic-ozone degradation tank 5, and vent holes with the diameter of 0.3cm are arranged on the pipeline at intervals of 4 cm.

The ultrasonic frequency of the ultrasonic-ozone degradation tank 5 is 20-44KHz, the output power of ultrasonic wave is 50-2000W, and the power is adjustable.

The skid-mounted support 9 is fixed with a membrane pump 3 for feeding and discharging materials and an ozone generator 7. The numerical control system 1 is connected with and controls an ultrasonic probe 6 and an ozone generator 7.

The device adopts an intermittent or continuous chemical waste liquid treatment mode. The chemical waste liquid is continuously subjected to the actions of air floatation separation, ultrasonic cavitation effect, ozone oxidation reaction and the like through an acid-base neutralization unit, a coagulation sedimentation unit and an ultrasonic ozone treatment unit of the device. The chemical waste liquid is pretreated under the chemical-physical actions, the COD value (reduced to 200-5000mg/L) and the content of metal ions of the treated waste liquid are greatly reduced, and the biodegradability is obviously enhanced.

The utility model provides a neutralization-coagulation tank 2 mainly carries out the pH value adjustment to the chemistry waste liquid, detaches the heavy metal ion that exists in the waste liquid as far as simultaneously, realizes solid-liquid separation. Corrosion-resistant polytetrafluoroethylene is used as a tank body material.

The ultrasonic-ozone degradation tank 5 in the utility model is made of stainless steel material. Simultaneously for installing ultrasonic generrator, this cell body adopts double-deck sandwich formula design, and intermediate layer internally mounted ultrasonic generrator promptly to install in the middle and lower part of the jar body, a plurality of ultrasonic generators evenly distributed make the effect that the ultrasonic action can be even act on the waste liquid and handle, exert its efficiency the most probably. Meanwhile, the noise influence generated by ultrasound is considered, and a sound insulation layer is additionally arranged inside the interlayer (close to the outer part), so that the effect of absorbing wave energy is achieved, and the operation comfort level and the working environment of the device are enhanced.

The utility model discloses an all jar bodies are through corrosion-resistant pipe connection, and the pipeline adopts threaded connection, strengthens its maintainability and can repair reason. All pumps adopt corrosion-resistant diaphragm pumps to prevent the pump body from being blocked. The pipeline is provided with a pressure gauge, a thermometer, a flowmeter and a control valve, thereby facilitating the observation and control in the processing process. Meanwhile, the skid-mounted design is adopted, so that the device is ensured to have mobility, the remote waste liquid treatment is facilitated, and the device has better universality.

The automatic control system of the utility model not only ensures the normal operation of the waste liquid treatment process, but also can improve the overall optimization level of the treatment process, and the like; the device is matched with an instrument to carry out field manual control and PLC automatic control, so that the operation of a fault device can be cut off at the highest speed when the device is found to be in fault on the field, and the damage degree of the device is reduced to the greatest extent. In the whole system, when the single equipment is damaged, the normal operation of other unrelated equipment of the system is ensured. Therefore, the impact on the treatment system caused by the starting of the lift pump can be reduced, the stable operation of the device is ensured, the frequency of the water pump is adjusted according to the liquid amount change, and the operation energy consumption is reduced.

Examples

Under the condition of no ultrasonic action, the ozone flux is found to be 0.8m through a plurality of experiments³In the hour of reaction, the chemical reagent achieves better degradation effect.

When the optimal ozone flux is determined to be 0.8m³During the treatment, under the action of the auxiliary ultrasonic wave and the same power, multiple experiments show that when the ultrasonic frequency is 22KHz, the optimal frequency is reached, the degradation of the chemical reagent is greatly improved, and the COD value of the treated waste liquid is reduced to 200-5000mg/L, so that the COD value is greatly reduced.

Claims

1. The utility model provides an adopt oxidation degradation device of supersound-ozone collaborative pretreatment laboratory chemical reagent waste liquid which characterized in that: the device comprises a numerical control system (1), a neutralization-coagulation tank (2), a diaphragm pump (3), a filter fence (4), an ultrasonic-ozone degradation tank (5), an ultrasonic probe (6), an ozone generator (7), an ozone pipeline (8), a skid-mounted support (9) and an outlet valve (10); wherein, an ultrasonic-ozone degradation tank (5) is arranged on the skid-mounted bracket (9), and a neutralization-coagulation tank (2) is arranged on the ultrasonic-ozone degradation tank (5); the bottom of the neutralization-coagulation tank (2) is provided with an outlet valve (10) with a filter fence (4); the ultrasonic-ozone degradation tank (5) is of a sandwich structure, a plurality of ultrasonic probes (6) are uniformly arranged in the sandwich, and ozone pipelines (8) with dense holes are uniformly paved in the tank; the skid-mounted support (9) is fixedly provided with a membrane pump (3) for feeding and discharging materials and an ozone generator (7); the numerical control system (1) is connected with and controls the ultrasonic probe (6) and the ozone generator (7).

2. The device for the oxidative degradation of the chemical reagent waste liquid in the laboratory by the ultrasonic-ozone synergistic pretreatment according to claim 1, which is characterized in that: the neutralizing-coagulating tank (2) is made of polytetrafluoroethylene with the thickness of 1cm, the bottom of the neutralizing-coagulating tank is concave-down conical, and an outlet valve (10) with a filter column (4) is arranged at the conical tip.

3. The device for the oxidative degradation of the chemical reagent waste liquid in the laboratory by the ultrasonic-ozone synergistic pretreatment according to claim 1, which is characterized in that: the ultrasonic-ozone degradation tank (5) is made of stainless steel with an interlayer, and the lower surface of the ultrasonic-ozone degradation tank is of an inclined structure, so that the degraded liquid can be conveniently discharged and cleaned in a later period.

4. The device for the oxidative degradation of the chemical reagent waste liquid in the laboratory by the ultrasonic-ozone synergistic pretreatment according to claim 1, which is characterized in that: the ultrasonic probes (6) are uniformly arranged in the interlayer of the ultrasonic-ozone degradation tank (5), and the distance between every two ultrasonic probes (6) is 8 cm.

5. The device for the oxidative degradation of the chemical reagent waste liquid in the laboratory by the ultrasonic-ozone synergistic pretreatment according to claim 1 or 4, which is characterized in that: the ultrasonic frequency of the ultrasonic-ozone degradation tank (5) is 20-44KHz, the output power of ultrasonic waves is 50-2000W, and the power is adjustable.

6. The device for the oxidative degradation of the chemical reagent waste liquid in the laboratory by the ultrasonic-ozone synergistic pretreatment according to claim 1 or 4, which is characterized in that: an ozone pipeline (8) is laid at the bottom in the ultrasonic-ozone degradation tank (5), and vent holes with the diameter of 0.3cm are arranged on the pipeline at intervals of 4 cm.