Device and method for degrading antibiotic wastewater by utilizing low temperature plasma in coordination with bismuth molybdate catalyst
A technology for low-temperature plasma and antibiotic wastewater, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. The methods and means that can solve the degradation effect are not very targeted , low photon quantum yield, high processing cost, etc., to achieve the effect of rapid reaction without selectivity, simple reaction conditions, and simple operation
A technology for low-temperature plasma and antibiotic wastewater, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. The methods and means that can solve the degradation effect are not very targeted , low photon quantum yield, high processing cost, etc., to achieve the effect of rapid reaction without selectivity, simple reaction conditions, and simple operation
CN103848484AInactive Publication Date: 2014-06-11NANJING UNIV
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[0036] The present invention will be further described below in conjunction with drawings and embodiments.
[0037] image 3 The catalyst shown was prepared by hydrothermal solvent method, taking 5mmol Bi(NO 3 ) 3 ·5H 2 O and 0.358 mmol (NH 4 ) 6 Mo 7 o 24 4H 2 O was added to 20 mL of ethylene glycol solution, ultrasonicated for 10 min, and after it was completely dissolved, 60 mL of absolute ethanol solution in which 0.5 g of urea was dissolved was added, stirred evenly, and then transferred to a 100 mL reaction kettle. The reaction kettle was sealed and placed in an oven at a constant temperature of 160°C for 12 hours. After the reaction was completed, the reaction kettle was naturally cooled to room temperature, and the precipitate was taken out, washed twice with deionized water and absolute ethanol in turn, and then dried in a vacuum oven at 60°C for 24 hours, and the dried sample was ground to obtain molybdenum bismuth catalyst.
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Abstract
The invention discloses a device and a method for treating antibiotic wastewater by utilizing low temperature plasma in coordination with a bismuth molybdate catalyst. The device for treating the antibiotic wastewater by utilizing the low temperature plasma in coordination with the bismuth molybdate catalyst comprises a barrel-shaped reactor, a breather pipe, a high voltage electrode, an alternating current high voltage power supply, an air pump and a stirrer, wherein the breather pipe is arranged inside the barrel-shaped reactor and is coaxial with the barrel-shaped reactor, the high voltage electrode is suspended inside the breather pipe, the lower port of the breather pipe is arranged at the lower bottom part inside the barrel-shaped reactor, the upper part of the breather pipe is arranged outside the barrel-shaped reactor, an air inlet is formed in the side wall of the upper part of the breather pipe, the air inlet is communicated with the outlet of the air pump by virtue of a pipeline; the alternating current high voltage power supply is respectively connected to the high voltage electrode and grounded, and the stirrer is arranged at the lower part of the barrel-shaped reactor. The device for treating the antibiotic wastewater by utilizing the low temperature plasma in coordination with the bismuth molybdate catalyst has the characteristics of simple design, low equipment investment and no secondary pollution and can be applied to the filed of treatment on antibiotic wastewater and organic wastewater difficult to be biochemically degraded, wherein a degradation reaction temperature can be increased by fully utilizing heat produced in a discharge process.
Description
technical field [0001] The invention belongs to the field of treatment of antibiotic waste water and refractory organic waste water, and in particular relates to a device for degrading antibiotic waste water by low-temperature plasma in cooperation with a bismuth molybdate catalyst and a method for treating waste water using the device. Background technique [0002] Since my country began to produce antibiotics in the early 1950s, the output has increased year by year, and it has now become one of the major antibiotic-producing countries in the world. In the production process of antibiotics in my country, most of them have many deficiencies such as low raw material utilization rate, low refining purity, and high residual antibiotic content in wastewater. As a result, production wastewater has complex components and is difficult to treat, causing serious pollution to the environment. [0003] At present, the treatment methods of antibiotic wastewater include: physicochem...
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Patent Timeline
11 Jun 2014
Publication
CN103848484A
- IPC
- C02F1/467; C02F1/72; B01J23/31
- Inventors
- 孙亚兵; 侯吉妃