Online automatic dynamic exposure and water body treatment system in laboratory

Abstract

The invention discloses an online automatic dynamic exposure and water body treatment system in a laboratory. The online automatic dynamic exposure and water body treatment system is characterized by comprising an online water flow system, a water body pretreatment system, an online chemical substance storage system, an online uniformly mixing system, an online polluted water body treatment system, an online temperature control system, an online illumination adjustment system and the like. According to a requirement for testing toxic organisms of water body pollutants in the laboratory, an online automatic dynamic exposure system in the laboratory is developed, so that a biologic test of toxic effects of the water body is realized; ideal laboratory dynamic exposure is realized through the automatic online temperature control system and the automatic illumination adjustment system; furthermore, exposed pollutants of the water body can be treated on line, and zero-pollution emission is realized. The system has a novel structure, a rational design and high practicability, and realizes fully automatic control.

Description

technical field [0001] The invention relates to a laboratory online automatic dynamic exposure and water body treatment system, which belongs to an environmental monitoring device and is applied to environmental evaluation technology. Background technique [0002] Biological toxicity test is a very effective method for evaluating the toxic effects of pollutants in the water environment. [0003] Usually, the biological toxicity test in the laboratory is divided into individual level, tissue organ level, cell level and molecular level at different levels. However, different levels of water pollutant toxicity tests are divided into two exposure methods: static exposure and dynamic exposure. Static exposure refers to the exposure with a fixed concentration of pollutants during the exposure process. During the exposure process, the water body does not flow or be replaced. Static exposure is mainly aimed at pollutants in water that are not easily volatile or change, such as he...

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Problems solved by technology

The disadvantage of this exposure method is that the concentration of pollutants in the water body, especially volatile or semi-volatile pollutants, cannot be guaranteed to remain consistent

Although the method of continuously pumping a certain concentration of liquid into the experimental area through a constant flow pump belongs to dynamic exposure, it is difficult to ensure that the concentration of pollutants in the reserve exposure solution, especially when the seal is not perfect and there is light, will occur. obvious change

[0005] In addition, whether it is the static test or the dynamic test that currently exists, the treatment of the polluted water after the test is rarely considered, and even the test water is directly discharged, causing secondary pollution to the environment.

In addition, the temperature of the water body, as well as the photoperiod and intensity will have a great impact on the biological toxicity test results of water pollutants.

Photoperiod and intensity also have an impact on biological outcomes, and none of the current experimental methods are well able to control for these factors

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