Control device and method for lake water contamination

Abstract

The present invention provides a control device for lake water contamination. The control device comprises a housing for inserting into the sediment in the bottom of a lake, at least two cavities are formed in the housing, and the housing is preferably formed by a cylindrical barrel wall, and a cylindrical cavity is formed at the center, and an annular cavity is formed on the outer side. A part of the at least two cavities is provided with control material cavities and the other part of the cavities is provided with sediment chambers. The sediment chambers are in communication with at least one of the control material cavities adjacently in a horizontal direction; in the control material chambers adjacent to each of the sediment chambers, the cavity sidewall between at least one control material cavity and the sediment chamber is provided with through holes, and sediments on two sides of the cavity respectively contact with the control materials through the through holes. The sediment-control material interface formed by the control device extends in the longitudinal depth direction along the sediments, can also adsorb and control the sediment at a certain depth and has better control effect.

Description

technical field [0001] The invention belongs to the field of lake water body pollution control, and in particular relates to a resistance control device and method for lake water body pollution. Background technique [0002] Water eutrophication is a major problem faced by various countries in water pollution control, and it is also the main cause of varying degrees of degradation of aquatic ecosystems, which is very harmful to the water environment and human health. Eutrophication of water body is a cumulative effect of pollutants formed by various sources of nutrients under the joint action of specific environmental factors. Divided from the source, the sources of nutrients in lakes can be divided into endogenous sources and exogenous sources. Among them, the release of sediment nutrient salts is the main endogenous source of nutrient salts in lake water. Therefore, one way to solve the problem of eutrophication is to prevent and control the release of nutrients in water....

AI Technical Summary

Problems solved by technology

However, there are problems in controlling the release of nutrient salts through resistance and control materials: on the one hand, different lakes have their own uniqueness, and different materials and methods have different effects on the eutrophication of different lake water bodies. Therefore, how to effectively control different lakes It is an unresolved technical problem in this field to study the best prevention and control materials and methods for water pollution under the conditions of various actual environmental factors; During the process, the material itself may cause secondary pollution to the lake, and there are also large differences in the control process of lake water pollutants by different materials under different conditions.

However, at this stage, the resistance control mechanism and resistance control process of the external impedance material during use are not clear in this field.

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