In-situ monitoring device for self-purification capacity of pollutants in shallow water area

Abstract

The invention discloses an in-situ monitoring device for the self-purification capacity of pollutants in a shallow water area. The in-situ monitoring device comprises a lower fixed sleeve and an upper detachable sleeve, wherein both the upper sleeve and the lower sleeve are transparent cylinders with top and bottom openings respectively; a vertical ruler is arranged on the inner wall of the upper detachable sleeve; the lower fixed sleeve is sleeved with a plastic board capable of vertically sliding outside; four stainless steel rods respectively penetrate through four corners of the plastic board; grooves are respectively formed in circumferential surfaces where the two sleeves are abutted; corresponding lugs with threaded holes are respectively and uniformly distributed at abutted end parts; and when the upper sleeve and the lower sleeve are coaxially connected, transparent rubber rings are embedded into the grooves in the circumferential surfaces of the two sleeves and the two sleeves are sealed into a whole through lug screwing screws. The in-situ monitoring device is simple in structure and can be used for analyzing the change of the load of pollutants in the enclosed water body along the retention time by continuous or discontinuous sampling, so as to conveniently quantify the self-purification capacities of the pollutants in different time intervals in an in-situ manner; and the trend of the pollutants can be quantitatively analyzed by adopting means such as isotopic tracing and the like, so that the in-situ quantification and standardization of the self-purification capacity evaluation are realized.

Description

technical field [0001] The invention is an in-situ monitoring device for the self-purification ability of pollutants in shallow waters. Background technique [0002] The self-purification function of the water body refers to the ability of the water ecosystem to absorb, transform, and redistribute the pollutants in the water body through natural ecological processes and material cycles, thereby reducing the concentration, quantity or toxicity of the pollutants in the water body. Therefore, the self-purification ability of water not only plays an important role in regulating the migration and transformation of pollutants between land and water systems, but also serves as the theoretical basis for ecological restoration of polluted water. With the aggravation of water pollution, the self-purification ability of water body has attracted more and more attention. The self-purification ability of pollutants in water is not only affected by the nature of the pollutant itself, but ...

AI Technical Summary

Problems solved by technology

At present, the quantification and evaluation of the self-purification ability of water bodies mainly adopts methods such as indoor simulation, empirical formulas, and model simulations. The techniques and methods that can monitor and evaluate the self-purification ability in situ are rarely reported, which in turn affects the principle of carrying out the self-purification ability of pollutants. Quantitative and standardized research

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