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Method for evaluating ecotoxicity of uranium by utilizing ostracoda

An ecotoxic, ostracodal technology, applied in measuring devices, instruments, testing water, etc., can solve the problems of high cost, less scientific, and more time-consuming

Pending Publication Date: 2020-10-27
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above physical and chemical methods have defects such as time-consuming, unscientific and high cost.

Method used

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  • Method for evaluating ecotoxicity of uranium by utilizing ostracoda

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, the method for evaluating the ecotoxicity of uranium by using ostracods, specifically comprises the following steps:

[0024] A. Collection of ostracods

[0025] The ostracods were collected in ponds or lakes with a hand-operated net bag with a net aperture of 280 mesh, and then the collected ostracods were stored in a refrigerator at 3°C ​​for 7 days. Choose to collect ostracods in the wild from March to April every year, because at this time the species are the most abundant and generally have a strong reproductive capacity; the water bodies collected are generally ponds and lakes, and these water bodies are generally quiet, and the abundance of ostracods is often relatively high. high.

[0026] B. The cultivation of ostracods

[0027] Put the ostracods stored in the refrigerator in the mineral water culture water body, cultivate chlorella in the water and feed the ostracods, set the water body temperature to 22°C, pH to 7, and dissolved oxygen to grea...

Embodiment 2

[0040] Embodiment 2, using ostracods to assess the method for uranium ecotoxicity, specifically includes the following steps:

[0041] A. Collection of ostracods

[0042] The ostracods were collected in ponds or lakes with a hand-operated net bag with a net diameter of 300 mesh, and then the collected ostracods were stored in a refrigerator at 5°C for 10 days. Choose to collect ostracods in the wild from March to April every year, because at this time the species are the most abundant and generally have a strong reproductive capacity; the water bodies collected are generally ponds and lakes, and these water bodies are generally quiet, and the abundance of ostracods is often relatively high. high.

[0043] B. The cultivation of ostracods

[0044]Put the ostracods stored in the refrigerator in the mineral water culture water body, cultivate chlorella in the water and feed the ostracods, set the water body temperature to 25°C, pH to 8, and dissolved oxygen to be greater than 6 ...

Embodiment 3

[0057] Embodiment three, the method for evaluating the ecotoxicity of uranium by using ostracods, specifically comprises the following steps:

[0058] A. Collection of ostracods

[0059] The ostracods were collected in ponds or lakes with a hand-operated net bag with a net aperture of 290 mesh, and then the collected ostracods were stored in a refrigerator at 4°C for 9 days. Choose to collect ostracods in the wild from March to April every year, because at this time the species are the most abundant and generally have a strong reproductive capacity; the water bodies collected are generally ponds and lakes, and these water bodies are generally quiet, and the abundance of ostracods is often relatively high. high.

[0060] B. The cultivation of ostracods

[0061] Put the ostracods stored in the refrigerator in the mineral water culture water body, cultivate chlorella in the water and feed the ostracods, set the water temperature at 27°C, pH at 7.6, and dissolved oxygen greater ...

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Abstract

The invention discloses a method for evaluating the ecotoxicity of uranium by utilizing ostracoda. The method specifically comprises the following steps of: collecting ostracoda; cultivating the ostracoda; acquiring uranium toxicity data, namely respectively checking the growth conditions of the ostracoda in an uranium solution through an experimental group and a control group, and recording the data; and performing data processing and analysis: respectively preprocessing the collected data, and then fitting the processed data by adopting a power function method to obtain a relationship between the mortality of the ostracoda and the uranium concentration in the water body solution, evaluating the ecotoxicity of uranium to be detected, putting the cultured ostracoda into an exposed uraniumwater body to be evaluated, keeping the same environmental conditions as data acquisition, calculating the mortality of the ostracoda, evaluating the concentration of the uranium in the uranium waterbody to be evaluated according to the relationship between the mortality of the ostracoda and the concentration of the uranium in the water body solution, and calculating the ecotoxicity of the uranium to be detected. The method for evaluating the ecotoxicity of the uranium is simple to operate, short in consumed time, low in cost, scientific and rapid, and capable of accurately and quantitativelyevaluating the ecotoxicity of the uranium.

Description

technical field [0001] The invention relates to uranium ecotoxicity evaluation technology, in particular to a method for evaluating uranium ecotoxicity by using ostracods. Background technique [0002] At present, the rapid development of the nuclear industry has led to an increasing demand for uranium, and at the same time, water pollution caused by the use of a large amount of uranium has been paid more and more attention. The sources of uranium in water mainly include uranium mining, smelting and processing, uranium leakage in abnormal accidents, weapons production tests, etc. Scientific evaluation of uranium ecotoxicity is the prerequisite for the treatment of uranium pollution in water bodies, and it is also the focus and hot issue of current environmental science research. [0003] The traditional method used to evaluate the ecotoxicity of uranium is the physical and chemical method, which is used to evaluate the ecotoxicity of uranium by detecting the concentration o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/186
Inventor 陈亮唐振平王正庆贺海洋黄伟刘珊郭知鑫
Owner NANHUA UNIV
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