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Sea water resistant ecological floating bed

An ecological floating bed and seawater-resistant technology, which is applied in seawater treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of strong seawater corrosion and the coastal environment is easily affected by wind and waves, and achieves the cultivation method Simple, suitable for large-scale promotion, and easy-to-obtain materials

Inactive Publication Date: 2009-08-19
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the salinity problem of seawater, general terrestrial plants cannot grow, and seawater is highly corrosive, and the seaside environment is easily affected by wind and waves, and the requirements for plant planting carriers (referring to floating beds) are very high. Therefore, this technology It has not yet been developed and applied in seawater environmental governance

Method used

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  • Sea water resistant ecological floating bed
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  • Sea water resistant ecological floating bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1: the laying method of a certain lake ecological floating bed

[0056] Lay 30 floating beds at the main canal of a certain lake, the specific implementation method is as follows image 3 shown. First, lay a fixed pile in advance in the floating bed placement area, pull two nylon ropes with a diameter of 2.5 cm in diameter along the direction of the water flow, and adjust the tension of the nylon ropes so that they can float up and down with the ebb and flow of the tide. Then insert the seahorse tooth cuttings into the cultivation holes of the floating bed on the shore, drag the floating bed to the laying area of ​​the floating bed with a motorized sampan, and fix the floating bed tightly on the thick nylon rope with nylon cable ties. Build a certain area of ​​phytoremediation floating bed, and use plants to absorb nitrogen, phosphorus, metal elements and other substances in the water body to purify the lake water.

Embodiment 2

[0057] Embodiment 2: the service life of floating bed

[0058] The tensile test and transmittance test were carried out on the polyethylene film laid on a floating bed in a certain lake in different periods, and the service life of the floating bed was evaluated with a new floating bed as a control. The results are shown in Table 1.

[0059] (1) The polyethylene film used in the present invention is in the natural aging process, and its force bearing capacity and deformation capacity slowly decline with the passage of time.

[0060] Table 1

[0061]

[0062] (2) The transmittance percentage of the polyethylene film used in the present invention will decrease with the increase of the use time, but at a slow rate.

[0063] (3) After 21 weeks of use, the integrity of the floating bed is good without obvious damage. From the data measured in Table 1, it is calculated that the performance of the floating bed (the estimated value after half a year) is good, which is in line wit...

Embodiment 3

[0065] Example 3: The growth effect of hippocampus teeth cultivated on a lake floating bed, the removal effect of biogenic elements in the water body and its ability to enrich heavy metals

[0066] Lay a floating bed in a certain lake canal to cultivate hippocampus, the floating bed laying and hippocampus cutting method are as described in Application Example 1, and the planting density ρ of hippocampus is 30shoot / m 2 . From April, 2008 to October, samples were taken every month (sample number N=10), and the growth parameters such as the number of stem nodes and stem length of hippocampal teeth, the weight and total weight of hippocampal tooth roots, stems and leaves were measured ( Specifically as shown in Table 2), the growth effect of hippocampal teeth was evaluated with relative growth rate and absolute growth rate. The relative growth rate and absolute growth rate calculation formula are as follows:

[0067] Relative growth rate of hippocampal teeth (% / month) = (B i+1 ...

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Abstract

The invention discloses a seawater endurable ecological floating floor, and relates to a plant growth carrier. The invention provides a seawater endurable ecological floating floor which is used for the plant restoration in an eutrophicated seawater environment, a floating floor fixing device and a plant restoration method in the eutrophicated seawater environment. The floating floor is provided with a floor body and cultured plants; the floor body is provided with two layers of plastic films; a foam bar is arranged between the two layers of plastic films; the foam bar is provided with culture holes; and fixing rings are arranged on the circumference of the two layers of plastic films. The fixing device is provided with fixing piles and fixing ropes; the fixing piles are fixed under water; and the fixing ropes are connected with the fixing piles. The restoration method comprises the following steps: preparing the floor body of the floating floor; driving the fixing piles under water and fixing one end of each fixing rope onto the fixing piles along the water flow direction; planting the salt endurable restoration plants into the culture holes through cuttage and transporting the plants to a restoration area; connecting the fixing rings and the fixing ropes, and adjusting the tightness of the fixing ropes so as to make the fixing ropes float up and down with the flux and reflux of the tide; and adjusting the salt endurable restoration plants according to the growth status and restoration effects of the salt endurable restoration plants.

Description

technical field [0001] The invention relates to a plant growth carrier, in particular to a seawater-resistant ecological floating bed which can be applied to phytoremediation of eutrophic seawater environment. Background technique [0002] Coastal wetlands play an important role in regulating climate, purifying pollutants, preventing and reducing disasters, protecting biodiversity, nurturing marine biological resources, providing tourism resources and backing up land resources. But these areas are located in important areas of land-sea interaction and are among the most fragile ecosystems on the planet. Once damaged, it is difficult to restore themselves. With the development of society and economy, the sewage dumping of various industries has also increased rapidly, resulting in a serious increase in eutrophication, organic pollution, pesticide pollution and heavy metal pollution in coastal shallow water wetlands. Environmental and ecological problems have become increasing...

Claims

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Application Information

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IPC IPC(8): C02F3/32A01G9/02C02F103/08
Inventor 黄凌风郑新庆洪清波张志英吴佳鑫谢天宏
Owner XIAMEN UNIV
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