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Method for treatment on 137Cs radioactive waste liquid by microbe adsorption

A radioactive waste liquid and microbial adsorption technology, applied in biological water/sewage treatment, radioactive purification, chemical instruments and methods, etc., can solve the problem of no microorganisms found

Inactive Publication Date: 2014-04-30
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the inventors know, there is no finding that can be used to effectively treat the 137 Microorganisms in Cs reflective effluent

Method used

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  • Method for treatment on 137Cs radioactive waste liquid by microbe adsorption
  • Method for treatment on 137Cs radioactive waste liquid by microbe adsorption
  • Method for treatment on 137Cs radioactive waste liquid by microbe adsorption

Examples

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Embodiment Construction

[0040] The present invention will be further described below through examples, so that people can understand the present invention. The contents of the present invention are not limited to the examples.

[0041] Rhodosporidium yeast acquisition example

[0042] 1. Dissolve the analytically pure CsCl with HCl, dilute it with distilled water to a solution with a concentration of 1g / L, put it into a ground-mouth reagent bottle, and store it sealed at 15-30°C for 2 months.

[0043] 2. Take the CsCl solution and apply it on the PDA plate by the dilution coating plate method, and incubate in a 30°C incubator for 3-5 days. Then pick a single colony and use the same method to streak and separate, and after multiple purifications, different single strains are obtained.

[0044] 3. After a single strain is cultured on a slant, it is inoculated into the culture medium, and after shaking and culturing in a shaker at 30°C for 6 days, the bacteria are collected and washed three times, cen...

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Abstract

The invention discloses a method for treatment on a 137Cs radioactive waste liquid by microbe adsorption. The method is characterized in that a pH value of the 137Cs radioactive waste liquid is adjusted to 2.5-9; rhodosporidium toruloides are added into the 137Cs radioactive waste liquid at a temperature of 5-40 DEG C; after 137Cs are fully adsorbed by rhodosporidium toruloides, the rhodosporidium toruloides are separated; the separated rhodosporidium toruloides with 137Cs are subjected to radiation-resistant storage; and the liquid satisfying radioactivity standards is directly discharged by a non-radioactive waste water discharge method. The method for treating the 137Cs radioactive waste liquid has a highest 137Cs adsorption rate of 95% and a wide application range. The method provides an effective means for 137Cs radioactive waste liquid treatment.

Description

technical field [0001] The invention relates to the technology of microbial treatment of radioactive waste water, in particular to a method of using microbial adsorption to treat radioactive waste water 137 C radioactive waste method. Background technique [0002] The treatment of radioactive liquid waste is a very important issue that must be taken seriously in the field of environmental protection, and it has very important significance and influence on the sustainable development of my country's nuclear industry and nuclear energy utilization. At the same time, with the continuous improvement of people's living standards and the strengthening of environmental protection awareness, higher requirements have been put forward for the safe treatment and disposal of radioactive waste liquid. [0003] 137 As a fission product of reactor, Cs is an important part of radioactive fallout and one of the main radioactive sources of β and γ rays, with a long half-life (T 1 / 2 =28a), ...

Claims

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Application Information

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IPC IPC(8): C02F3/34G21F9/18
Inventor 廖家莉刘宁杨远友冯悦杨吉军许发伦
Owner SICHUAN UNIV
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