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A method for treating radioactive organic waste liquid by electrochemical degradation

A technology for organic waste liquid and electrolytic treatment, applied in radioactive purification, nuclear engineering, etc., can solve problems such as weak mechanical strength, and achieve the effects of accelerated reaction speed, good treatment effect, and large specific surface area

Inactive Publication Date: 2017-11-14
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal electrodes prepared by compressing metal particles have a large specific surface area, but the mechanical strength of such electrodes is weak, which limits its applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for electrochemically degrading radioactive organic waste liquid, comprising the following steps:

[0030] Step 1. Add two parts of modified sodium alginate to N,N-dimethylformamide respectively, stir well, and prepare modified sodium alginate solutions with a concentration of 0.5wt% and 1wt%, wherein the concentration is 1wt% The modified sodium alginate is the shell solution; to the concentration of 0.5wt% modified sodium alginate solution, add H 2 PtCl 6 solution, fully stirred and mixed evenly to obtain a core layer solution; respectively inject the shell layer solution and the core layer solution into the outer layer and the inner layer of a stainless steel coaxial needle, and use high-voltage electrospinning equipment to separate the shell layer solution and the core layer solution Spray on the receiving device that is laid with tinfoil paper under the condition of high-voltage electrostatic spraying, obtain the modified sodium alginate fiber film; The H...

Embodiment 2

[0035] A method for electrochemically degrading radioactive organic waste liquid, comprising the following steps:

[0036] Step 1. Add two parts of modified sodium alginate into N,N-dimethylformamide respectively, stir well, and prepare modified sodium alginate solutions with a concentration of 1wt% and 3wt%, wherein the concentration of 3wt% Modified sodium alginate is the shell solution; add H to the modified sodium alginate solution with a concentration of 1wt% 2 PtCl 6 solution, fully stirred and mixed evenly to obtain a core layer solution; respectively inject the shell layer solution and the core layer solution into the outer layer and the inner layer of a stainless steel coaxial needle, and use high-voltage electrospinning equipment to separate the shell layer solution and the core layer solution Spray on the receiving device that is laid with tinfoil paper under the condition of high-voltage electrostatic spraying, obtain the modified sodium alginate fiber film; The H...

Embodiment 3

[0041] A method for electrochemically degrading radioactive organic waste liquid, comprising the following steps:

[0042] Step 1. Add two parts of modified sodium alginate into N,N-dimethylformamide respectively, stir well, and prepare modified sodium alginate solutions with a concentration of 0.8wt% and 2wt%, wherein the concentration is 2wt% The modified sodium alginate is the shell solution; adding H to the modified sodium alginate solution with a concentration of 0.8wt% 2 PtCl 6 solution, fully stirred and mixed evenly to obtain a core layer solution; respectively inject the shell layer solution and the core layer solution into the outer layer and the inner layer of a stainless steel coaxial needle, and use high-voltage electrospinning equipment to separate the shell layer solution and the core layer solution Spray on the receiving device that is laid with tinfoil paper under the condition of high-voltage electrostatic spraying, obtain the modified sodium alginate fiber ...

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PUM

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Abstract

The invention discloses a method for treating radioactive organic waste liquid by means of an electrochemical degradation method. The method comprises the following steps that 1, a modified sodium alginate fibrous membrane is prepared; 2, the modified sodium alginate fibrous membrane is carbonized to obtain a composite carbon fiber material; 3, the composite carbon fiber material is added into a fixed bed flow reactor and reduced by hydrogen for 1 h to 3 h, the reduced composite carbon fiber material and dimethyl sulfoxide are mixed, subjected to ultrasonic treatment for 10 min to 30 min, baked to be pasty and coated on an electrode substrate, vacuum drying is conducted, tabletting is conducted through a tablet machine, and a composite electrode is obtained; 4, the radioactive organic waste liquid is added into an H-type electrolytic tank with an ion exchange membrane, the composite electrode serves as the positive electrode, Pt serves as the negative electrode, and electrolytic treatment is conducted on the radioactive organic waste liquid. The prepared electrode is used for treating the radioactive organic waste liquid and can effectively remove various organic matter in the radioactive waste liquid, the removal rate of the organic matter reaches 99% or above, and the comprehensive treatment effect is good.

Description

technical field [0001] The invention relates to a treatment method for radioactive organic waste liquid, in particular to a method for treating radioactive organic waste liquid by an electrochemical degradation method. Background technique [0002] Radioactive organic waste liquid contains a variety of organic substances, such as alkyl polyglycosides (APG), ethylenediaminetetraacetate (EDTA), xanthan gum, oxalic acid, citric acid, etc. The existence of organic matter in radioactive organic waste liquid increases the difficulty of waste liquid treatment. It must be pretreated before it can be further processed by conventional radioactive waste liquid treatment equipment. In addition, the radioactivity of these radioactive waste liquids must be considered. Consider its chemical toxicity. Due to the existence of organic matter, it is not only unfavorable to the storage of radioactive waste liquid, but also increases the difficulty of waste liquid treatment. At present, the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F9/06
CPCG21F9/06
Inventor 竹文坤段涛牟涛王茜姚卫棠赵博
Owner SOUTHWEAT UNIV OF SCI & TECH