A purification method and screening and purification device for marine diatom fossils

A purification method and diatom technology, which are applied in the field of diatom fossil purification, can solve the problems of difficulty in meeting research requirements and low abundance of diatom fossils, and achieve the effects of reducing purification cost, increasing abundance and solving difficult purification.

Active Publication Date: 2022-03-29
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

In order to understand the information of paleoenvironment in different geological periods, it is necessary to purify the seabed sediments to obtain high-abundance marine diatom fossils. At present, the commonly used purification devices mostly adopt the method of direct flushing and single-stage washing and screening. This purification device The abundance of diatom fossils in the obtained extract is not high, and it is difficult to meet the research requirements

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  • A purification method and screening and purification device for marine diatom fossils
  • A purification method and screening and purification device for marine diatom fossils
  • A purification method and screening and purification device for marine diatom fossils

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[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] A method for purifying marine diatom fossils, the method is used for seabed sediment treatment to extract diatom fossils therein, which specifically includes the following steps:

[0029] S1: Weigh a certain weight of sediment and put it into the cleaning container;

[0030] S2: Add hydrogen peroxide into the cleaning container to promote the dissolution of organic impurities in the dissolved sediment by oxidation, so as to remove some organic impurities in the sediment. This process will release a large amount of heat; preferably, the hydrogen peroxide mass concentration is 10-40%;

[0031] S3: Add acidic solution to the cleaning container and stir until no bubbles are generated, then seal and stand still, so as to promote the dissolution of car...

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Abstract

The present invention provides a method for purifying marine diatom fossils and a screening and purifying device. The method is used for the treatment of seabed sediments to extract the diatom fossil components. The method includes oxidative dissolution, acidification to remove carbonate impurities, Steps such as dilution and acid reduction, multi-stage screening, soaking and rinsing, etc., the screening and purification device is used for multi-stage screening of the treated sediment in the above-mentioned multi-stage screening step, the device includes a fixed plate, and the fixed plate is set There are multiple sieve wash tanks, and each sieve wash tank is provided with multiple wash rings, and each wash ring is provided with a screen, and all wash rings are arranged on wash pipes, and the wash pipes are equipped with ultrapure water connected to the ultrapure water tank. The invention has the following beneficial effects: the invention can make the purification process of diatom fossils simple and easy to operate, reduce the cost of diatom fossil purification, and at the same time effectively increase the abundance of diatom fossils in the purified sediment and reduce the purification process The pollution of the environment by the waste flushing liquid.

Description

technical field [0001] The invention relates to the technical field of purification of diatom fossils, in particular to a method for purification of marine diatom fossils and a screening and purification device. Background technique [0002] Diatoms play an important role in marine geology. They can well reflect the environmental characteristics of the water in which they live, and are often used in marine environmental science. By analyzing the species composition, subsidence and burial of marine diatom fossils, it can be used to interpret the status of modern ocean water bodies and diatom fossils contain information about the paleoenvironment of many geological periods. [0003] When diatoms die, their siliceous skeletons are deposited on the seabed to form a large number of diatom fossils. In order to understand the state of modern ocean water bodies and paleoenvironmental information, researchers conducted seabed exploration and retrieved a large amount of seabed sedime...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/53
CPCC04B41/5315
Inventor 邓空刘占红王杰武慧慧高梦天汤冠雄吴少波袁超詹晨胡圣
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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