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A microwave treatment method for pharmaceutical waste

A microwave treatment and waste technology, which is applied in the direction of protection devices against harmful chemicals, can solve problems such as secondary pollution of dioxins, and achieve the effects of reducing energy consumption and processing costs, stable process, and controllable parameters

Active Publication Date: 2022-04-12
柳州素问信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a microwave treatment method for pharmaceutical waste in view of the secondary pollution caused by carbon monoxide and dioxins during the medical waste treatment process

Method used

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  • A microwave treatment method for pharmaceutical waste
  • A microwave treatment method for pharmaceutical waste
  • A microwave treatment method for pharmaceutical waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A microwave treatment method for pharmaceutical waste, comprising the following steps:

[0032] a. Put the pharmaceutical waste into the microwave cracking furnace, feed in biogas, heat up to 70°C, keep warm for 50 minutes, then add nitric acid waste liquid, heat up to 155°C and keep warm for 85 minutes to obtain the pre-digested product;

[0033] Among them, the biogas was fed continuously for 23 minutes, and the flow rate was 1.4L / min; the amount of nitric acid waste liquid added was 1 / 30 of the mass of pharmaceutical waste, and the mass percentage concentration of nitric acid in the nitric acid waste liquid was 25%.

[0034]b. Set the output power of the microwave cracking furnace, and then raise the temperature to 205°C within 25 seconds to perform microwave digestion and α-ray ionization on the pre-digested product. Set the microwave digestion time to 40 minutes to obtain the digestion mixture and digestion gas, and then the digestion gas And the introduced biogas ...

Embodiment 2

[0040] A microwave treatment method for pharmaceutical waste, comprising the following steps:

[0041] a. Put the pharmaceutical waste into the microwave cracking furnace, feed in biogas, raise the temperature to 80°C, keep it warm for 70 minutes, then add nitric acid waste liquid, raise the temperature to 175°C and keep it warm for 125 minutes to obtain the pre-digested product;

[0042] Among them, the biogas was fed continuously for 33 minutes, and the flow rate was 5.6L / min; the amount of nitric acid waste liquid added was 1 / 20 of the mass of pharmaceutical waste, and the mass percentage concentration of nitric acid in the nitric acid waste liquid was 45%.

[0043] b. Set the output power of the microwave cracking furnace, and then raise the temperature to 315°C within 5 seconds to perform microwave digestion and α-ray ionization on the pre-digested product. Set the microwave digestion time to 70 minutes to obtain the digestion mixture and digestion gas, and then the digest...

Embodiment 3

[0049] A microwave treatment method for pharmaceutical waste, comprising the following steps:

[0050] a. Put the pharmaceutical waste into the microwave cracking furnace, feed in biogas, heat up to 72°C, keep warm for 55 minutes, then add nitric acid waste liquid, heat up to 160°C and keep warm for 95 minutes to obtain the pre-digested product;

[0051] Among them, the biogas was fed continuously for 25 minutes, and the flow rate was 2.4L / min; the amount of nitric acid waste liquid added was 1 / 22 of the mass of pharmaceutical waste, and the mass percentage concentration of nitric acid in the nitric acid waste liquid was 30%.

[0052] b. Set the output power of the microwave cracking furnace to 12kw, and then raise the temperature to 232°C within 10 seconds to perform microwave digestion and α-ray ionization on the pre-digested product. Set the microwave digestion time to 47 minutes to obtain the digestion mixture and digestion gas, and then Digestion gas and incoming biogas a...

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Abstract

The invention provides a microwave treatment method for pharmaceutical waste, and specifically relates to the technical field of garbage sorting and treatment. The invention converts the pharmaceutical waste into gaseous fuel and harmless solid matter through the combined digestion method of microwave and α-ray after acidic pre-digestion. The weight loss of the pharmaceutical waste after the method of the present invention is more than 90%; no nitrogen oxides, carbon monoxide and dioxins are detected in the discharged digested gas and the introduced biogas; The biochemical oxygen demand is lower than 5.1mg / L. The invention has stable process and controllable parameters, and is suitable for industrial application.

Description

【Technical field】 [0001] The invention relates to the technical field of garbage classification and treatment, in particular to a microwave treatment method for pharmaceutical waste. 【Background technique】 [0002] Garbage sorting is a reform of the traditional way of garbage collection and disposal, and it is a scientific management method for effective disposal of garbage. Facing the situation of increasing garbage production and deteriorating environmental conditions, how to separate different types of garbage to the greatest extent through garbage classification management, realize the utilization of garbage resources, reduce the amount of garbage disposal, and improve the quality of living environment is the current world One of the urgent issues of common concern to all countries. In addition to daily domestic waste, with the rapid development of my country's healthcare industry, medical waste has increased significantly. For a long time, medical waste has been calle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/178A62D3/17A62D3/02A62D101/26A62D101/28
CPCA62D3/178A62D3/17A62D3/02A62D2203/02A62D2101/26A62D2101/28
Inventor 张志安范晓静黄武强陈艳
Owner 柳州素问信息科技有限公司
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