Water purifying technology for large-scale floating plant cultivation project of lake river mouth surface

A floating plant and engineering technology, applied in the complete field of estuary water surface water purification projects, can solve problems such as obstruction of flood discharge, large ecological risks, limited river surface width, etc., to suppress wind and waves, ensure spatial consistency, and prevent impact effects.

Inactive Publication Date: 2008-04-02
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, its limitations lie in that the scale of constructed wetlands occupied by land is strictly limited by the available land area, and there is a height difference between the constructed wetlands and the river surface, driving the operation of the constructed wetlands still requires a large water level difference, and water lifting has caused relatively large water level differences. High operating energy consumption and cost; most of the rivers have been highly artificial, the width of the river is very limited and designed strictly according to the needs of flood discharge, the scale of ecological floating beds or floating plants on the water surface of the river is very limited, and there are problem

Method used

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  • Water purifying technology for large-scale floating plant cultivation project of lake river mouth surface
  • Water purifying technology for large-scale floating plant cultivation project of lake river mouth surface
  • Water purifying technology for large-scale floating plant cultivation project of lake river mouth surface

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Embodiment Construction

[0055] The present invention is applied in engineering according to the following steps:

[0056] 1. The production and installation of the external protective cloth water enclosure and the inner water cloth enclosure

[0057] (1) According to the design size and material requirements, sewn wall coverings, stone dragons and flexible rod-shaped floating bodies in sections. The length of each section depends on the width and material. The weight should not exceed 200kg.

[0058] (2) Put buoys in accordance with the design position to determine the layout line, build a floating working platform of not less than 6m×20m, start from one end to assemble and lay the enclosure, and lay it out while assembling, and positioning the wooden piles at the bottom of the lake for construction of underwater piling machines.

[0059] 2. Fabrication and installation of floating carpet wave-eliminating belt

[0060] (1) Sew a 10m×10m square nylon mesh, wrap the floating grass plants with two layers of...

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Abstract

The invention discloses a maturity process and a packaged technology for purifying water in a lake-river-mouth on-scale floating plant cultivation project. The main body comprises an outside protective cloth water barricading, a floating blanket type wave absorption zone, a floating plant purification area, an inboard water distribution barricading, an aeration deodorization reoxygenation zone and a submerged plant purification area. By the outside protected water distribution barricading and the floating blanket type wave absorption zone, boundaries of a project area are controlled, the water flow exchange between the water body in the project area and the lake surface is obstructed and storms is resisted; by the outside protected water distribution barricading and the inboard water distribution barricading, the inflow and outflow of the water of the project area are controlled, thereby even water distribution and uniform water power residence time are achieved; the main process unit for water purification is formed through cultivating floating plants on scale on large cage carriers with the biserial emplacement and the elastic mooring at the bottom of the lake; through deodorization and reoxygenation in the aeration zone, and oxygenation and purification in the submerged plant purification area, the odor in the water is eliminated and the water is resumed to the oxygenation state, the effects of the floating plant purification area to the downstream water body and surrounding environment are eliminated. The maturity process and the packaged technology can be used to control the related pollution among water bodies including rivers flowing into lakes pollution control, water flow flowing out of lakes pollution control, water purification of lake coastwise sewage discharge points, water purification of lake coastwise intake points (water resources area) and others, and have the remarkable efficacies of eliminating alga, nitrogen, phosphorus.

Description

Technical field: [0001] Water environmental engineering. The invention relates to a complete set of technology for water quality purification engineering of estuary water surface, including boundary protection, flow field control, large-area floating plant breeding, natural water aeration and deodorization, oxidation and purification of submerged plant areas, etc., and is suitable for entering and exiting rivers in lakes A temporary water purification project will be constructed on the water surface of the estuary area to remove the algae and various pollutants in the natural water flow, and control the joint pollution between the surface water bodies. This engineering technology can also be used for water quality purification at lakeshore sewage discharge points or water quality protection at water intakes (especially pollution protection of floating cyanobacteria). Background technique: [0002] The river into the lake collects non-controllable non-point source pollutants and r...

Claims

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Application Information

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IPC IPC(8): E02B15/04
Inventor 李文朝潘继征冯慕华
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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