Method and device for obtaining enrichment coefficient of pollutants in aquatic vegetables

Abstract

The present invention discloses a method and an apparatus for obtaining the aquatic vegetable pollutant enrichment coefficient. The method comprises: preparing a culture liquid for aquatic vegetables, and a tested solution, wherein the lowest concentration of the tested solution preferentially selects the aquatic crop water quality standard in the standards for irrigation water quality as the lowest concentration, secondly selects the grade 3 water quality standard specified in the environmental quality standards for surface water, and finally selects the standard value specified in the water quality standard for fisheries, and the highest concentration of the tested solution selects the limiting value in the integrated wastewater discharge standard and the related industry discharge standard; respectively breeding selected target aquatic vegetables by using the prepared culture liquid and the tested solution; sampling and analyzing to obtain the concentration of the object in the target aquatic vegetables and the actual concentration of the testes solution; and calculating the ratio of the concentration of the object in the target aquatic vegetables to the actual concentration of the testes solution so as to obtain the aquatic vegetable pollutant enrichment coefficient. With the method and the apparatus of the present invention, the technical support can be provided for the comprehensive evaluation of the biological enrichment effect of the aquatic vegetables on the pollutants.

Description

technical field [0001] The invention relates to water environment ecological technology, in particular to a method and device for obtaining the enrichment coefficient of aquatic vegetable pollutants. Background technique [0002] Water is the basis for human survival, and the quality of water environment is closely related to human health and development. However, with the rapid development of social economy and the intensification of industrial and agricultural production activities, the number and types of chemicals produced are also increasing, and the mining of a large number of metal deposits and the use of chemicals enter the water environment through various channels. , resulting in the pollution of the water environment and ecology, leading to the deterioration of the water environment, and posing a serious threat to the ecological safety of the water environment and human health. For example, at present, a large amount of industrial waste, wastewater and chemicals ...

AI Technical Summary

Problems solved by technology

With the continuous erosion of available arable land urbanization, people began to consider cultivating aquatic plants to provide new food sources. However, since the growth mechanisms of aquatic plants and aquatic animals are completely different, if the pollution is assessed solely based on fish bioaccumulation However, the bioaccumulation of aquatic vegetables is neglected, so that the assessment results cannot fully reflect the impact of pollutants on human health. At present, the impact and mechanism of water environmental pollution on aquatic plants have not yet been studied and analyzed. According to the report, it is necessary to propose a bioaccumulation evaluation method based on aquatic plants, especially aquatic vegetables, to provide a comprehensive basis for the formulation of sanitary standards for water pollutants

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