Device and method for purifying pesticide of aquaculture factory by using daphnia magna

Abstract

The invention discloses a device and method for purifying a pesticide of an aquaculture factory by using daphnia magna. The device comprises a concentration circulation adjusting device and at least one tubular culture mechanism; each tubular culture mechanism can form a closed loop with the concentration circulation adjusting device; control valves are arranged at the two ends of each tubular culture mechanism; each tubular culture mechanism comprises a feeding end and a discharging end; a detachable culture tank is arranged on one side, close to the discharging end, of each tubular culture mechanism. According to culture equipment and a using method of the daphnia magna, provided by the invention, the daphnia magna with high adaptability and decomposition capacity to pesticide chemical components is selected in a culture selecting mode with the concentration which changes in a fluctuating manner; then, the daphnia magna is thrown in the water which is polluted by the pesticide of theaquaculture factory; the pesticide is decomposed by using the daphnia magna, and the polluted water is purified; the device and the method are easy to implement and long in lasting time, can also enrich food types of fish, and do not have a negative effect on the environment.

Description

technical field [0001] The invention relates to the field of environmental protection management, in particular to a device and method for purifying pesticides in aquaculture plants by using Daphnia daphnia. Background technique [0002] Pesticides are a common class of harmful chemicals. When people use pesticides to kill germs and pests, they will also cause environmental pollution and cause harm to various organisms including humans. [0003] Many pesticides are compounds that are not easy to decompose. After being absorbed by organisms, they will continue to accumulate in the organism, resulting in the content of such harmful substances in the organism far exceeding the content in the external environment. This phenomenon is called bioaccumulation. . Bioaccumulation is enhanced with the extension of the food chain. For example, DDT, as a high-efficiency pesticide, was widely used to control pests decades ago. A place in the United States once used DDT to control larv...

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Problems solved by technology

[0005] From the analysis of the common solutions and purification equipment on the market, if it is necessary to purify and treat the residual pesticides in the water of aquaculture farms, complex purification processes are required to filter, and a large amount of water treatment needs to be connected to large-scale purification equipment. The purification is very energy-consuming, and at the same time, once the machine stops, the purification will be terminated, so the traditional method and equipment purification cost is high, the implementation is difficult, there is no sustainability, and there are also negative effects caused by leakage of electricity and oil during the purification process

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