Method for evaluating heavy metal pollution of bottom mud of deep water reservoir

A technology for pollution evaluation and heavy metals, applied in resources, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2019-09-06
HOHAI UNIV
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  • Abstract
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Problems solved by technology

However, my country has not yet established a set of mature and systematic comprehensive evaluation methods for heavy metal pollution in deep-water reservoir sediments. The present invention conducts supplementary research on this poi

Method used

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  • Method for evaluating heavy metal pollution of bottom mud of deep water reservoir
  • Method for evaluating heavy metal pollution of bottom mud of deep water reservoir
  • Method for evaluating heavy metal pollution of bottom mud of deep water reservoir

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Embodiment

[0058] An embodiment of the present invention is a method for evaluating heavy metal pollution in sediment of a deep-water reservoir. Taking the measured data of heavy metal in the sediment of a deep-water reservoir in Nanning City in 2016 as an example, the degree of heavy metal pollution in the sediment was evaluated and its cause was analyzed.

[0059] Statistical analysis shows that the content of various heavy metal elements in the bottom sediment of the reservoir is normally distributed, and the minimum, maximum, average, standard deviation and coefficient of variation are shown in Table 1.

[0060] Table 1 Basic data of heavy metals at sampling points of the reservoir (unit: mg / kg)

[0061]

[0062]

[0063] The background value of heavy metal elements in the soil of Nanning City is used as the background reference value of heavy metal elements in this embodiment, and the background value of heavy metal elements in the soil of Nanning City is shown in Table 2.

[...

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Abstract

The invention discloses a method for evaluating heavy metal pollution of bottom mud of a deep water reservoir. A judgment is made whether the heavy metal comes from human input or natural activity based on the heavy metal content and the variation coefficient. The heavy metal pollution of the reservoir bottom mud is evulated by combining a ground accumulation index method, a pollution load index method and an internal meso pollution index method. The pollution condition of the single heavy metal element at each point position and the comprehensive pollution degree of all heavy metal elements can be comprehensively known. According to the method, the ecological risk condition of the reservoir heavy metal pollution can be determined, and meanwhile, pollution of a certain heavy metal can be distinguished according to an evaluation result due to the influence of a natural geological process or human input, so that the history and the current situation of reservoir heavy metal pollution canbe comprehensively known, and theoretical support and method reference are provided for prevention and treatment of the reservoir water environment.

Description

technical field [0001] The invention belongs to the technical field of determining the ecological risk of heavy metals in bottom mud of deep-water reservoirs, and in particular relates to an evaluation method for heavy metal pollution in bottom mud of deep-water reservoirs. Background technique [0002] Reservoir bottom sediment is an important medium for the hiding and migration of pollutants, and is closely related to human production and life. It is not only an important part of the water environment, but more importantly, it is the sink and source of heavy metal elements in the water body, recording rich information on environmental changes in the reservoir area. When heavy metal elements enter the water body, they will quickly accumulate in the reservoir sediments, and through bioaccumulation, they will cause serious harm to the reservoir ecosystem, and even threaten human health and life safety through the food chain. In addition, some human activities can also lead t...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06G06F30/20
Inventor 赵晓磊李一平王凯徐芸蔚
Owner HOHAI UNIV
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