Control device and method for lake water contamination

A technology of water pollution and resistance control, which is applied in the field of lake water pollution control, can solve the problems of secondary pollution of lakes, unclear resistance control mechanism and process of external resistance materials, and differences in the control process of lake water pollutants, etc., to achieve good results. The effect of blocking effect

Active Publication Date: 2016-12-07
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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...

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  • Control device and method for lake water contamination
  • Control device and method for lake water contamination
  • Control device and method for lake water contamination

Examples

Experimental program
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Embodiment 1

[0051] The resistance and control device used for lake water pollution provided in this embodiment is as follows: Figure 1-3 As shown, it includes: a shell 1 for inserting into the sediment at the bottom of the lake. In this embodiment, the shell 1 includes two cylindrical walls 21, 22 with different diameters. The cylinder walls 21 , 22 are arranged concentrically and nested in turn, and are fixedly connected by a fixed rod 25 in the radial direction; the top and bottom ends of the two cylindrical cylinder walls 21 , 22 are arranged flush. A cylindrical cavity is formed inside the cylindrical barrel wall 21 located on the inner side, and an annular cavity is formed between the two cylindrical barrel walls, and the cylindrical cavity and the annular cavity Adjacent in the horizontal direction; the cylindrical cavity described in this embodiment is used as a resistance control material cavity, the bottom surface 5 of the resistance control material cavity is airtightly arrange...

Embodiment 2

[0055] The resistance and control device used for lake water pollution provided in this embodiment is as follows: Figure 4 As shown, on the basis of Embodiment 1, this embodiment further adds a first sampling device, and the first sampling device includes:

[0056] The first cylindrical body 7, the first cylindrical body 7 is fixedly connected with the housing and the cylinder wall of the first cylindrical body forms an enclosure on both sides of the side wall of the cavity, and the enclosure includes Two regions on both sides of the side wall of the cavity; the first cylinder 7 is extended in the horizontal direction along the radius of the cylindrical cylinder 22 located on the outside; in this embodiment, the first cylinder 7 The cross-section of the part located in the resistance-control material chamber is fan-shaped, and the cross-section of the part of the first cylinder 7 located in the sediment chamber is elongated with constant width.

[0057] Such as Figure 5 wi...

Embodiment 3

[0064] The prevention and control device for lake water pollution provided in this embodiment includes: a shell 1 for inserting into the sediment at the bottom of the lake, and the shell 1 in this embodiment includes two cylinders with different diameters Cylindrical cylinder walls 21, 22, the two cylindrical cylinder walls 21, 22 are sequentially nested and arranged concentrically, and are fixedly connected by a fixed rod 25 in the radial direction. A cylindrical cavity is formed inside the cylindrical barrel wall 21 located on the inner side, and an annular cavity is formed between the two cylindrical barrel walls, and the cylindrical cavity and the annular cavity Adjacent in the horizontal direction; the bottom surface 5 of the cylindrical cavity in this embodiment is airtightly arranged, and the bottom surface 5 is set as a plane; a resistance control material is placed in the cylindrical cavity for use as a resistance Control material cavity 3; the top of the resistance c...

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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....

Claims

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Application Information

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IPC IPC(8): C02F11/00G01N33/18
CPCC02F11/00C02F2103/007G01N33/18
Inventor 张莉王圣瑞席银
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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