Adjustable recovering method and device of submerged plant in polluted shallow lake

A technology of submerged plants and recovery methods, applied in the field of ecological restoration, to achieve the effect of improving the ecological environment of water bodies and improving their own purification capabilities

Inactive Publication Date: 2010-05-05
SHANDONG JIANZHU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problems existing in the existing technology of recovering submerged plants in polluted water bodies, the present invention proposes an adjust...

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  • Adjustable recovering method and device of submerged plant in polluted shallow lake
  • Adjustable recovering method and device of submerged plant in polluted shallow lake

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Embodiment Construction

[0013] Such as figure 1 As shown, the device for recovering submerged plants used in the present invention includes a submerged plant plant and a pile foundation 1 for fixing the submerged plant plant. Each submerged plant planting body is connected in rigid horizontal series. The submerged plant planting body is made up of a frame body 2, a fence 4 and a submerged plant planting substrate. The frame body 2 can be constructed with bamboo rafts, steel pipes or plastic pipes, preferably light or with certain buoyancy materials. A casing 5 is arranged on the corner, and is sleeved on the pile foundation 1 through the casing 5 . The pile foundation 1 is made of I-beam made of stainless steel or a plastic pipe with higher strength. Around and the bottom of frame body 2 are provided with fence 4, and fence 4 adopts fine and dense gauze, and yellow sand can not be leaked out. Bedding gravel cushion (not shown among the figure) in frame body 2, lay submerged plant planting substrat...

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Abstract

The invention discloses adjustable recovering method and device of a submerged plant in a polluted shallow lake. The method comprises the following steps of: fixing the submerged plant underwater for a certain depth capable of ensuring the illumination requirement for the health growth of the submerged plant when a water body is in the initial transparency; because the transparency of the water body covered on the submerged plant is gradually increased along with the growth of the submerged plant, adjusting a planting body of the submerged plant to move downwards to ensure that the submerged plant grows at the next water depth and the submerged plant can continuously grow in a downwards moving water layer; and repeating the operation steps so that the submerged plant is gradually moved downwards until the planting body is downwards moved to a water body sediment surface layer. The device comprises the planting body of the submerged plant and a pile foundation for fixing the planting body of the submerged plant. The invention ensures that the growth depth of the submerged plant in the water body is adjusted according to the illumination requirement for the growth of the submerged plant, and the submerged plant is gradually downwards moved to the water bottom, thereby not only treating the polluted water body, but also meeting the illumination requirement for the growth in the downwards moving process.

Description

technical field [0001] The invention relates to a submerged plant recovery technology for eutrophic shallow lakes (water depth ≤ 3m) with poor transparency and heavy sediment pollution, and belongs to the technical field of ecological restoration. Background technique [0002] In recent years, the eutrophication trend of freshwater lakes at home and abroad has gradually increased. Especially in some urban lakes, the water transparency is poor, which brings a lot of inconvenience to people's production and life, and the blackening and odor of some water bodies also affects the natural landscape. For the treatment of polluted lakes, laboratory-scale research in recent years generally believes that compared with physical and chemical treatment technology, submerged phytoremediation technology is an ideal treatment technology for shallow water lake pollution. cause secondary pollution. Submerged plants have a good water purification effect. In areas where submerged plants grow ...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 张志斌于士淼谭晓波魏垒垒孔敏李艺
Owner SHANDONG JIANZHU UNIV
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