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漂浮岛floating island英语演讲
Floating island;floating island ???;;The ecological floating island is a floating structure that grows plants.;Dry floating island and Wet floating island.
Five principles:
strong tolerance to pollution
detergent power
extensive root system (thriving stem and leaf)
tailoring to local conditions
high economic and ornamental values
Water hyacinth, Canna, Reed, Stone flag, Chrysanthemum hose, Lie grass, Watercress, Jiao grass, Windmill grass;;necessary to guarantee the island not be taken away by the wind and waves
ensure that in the case of dramatic changes in the water level can collide buffer between the floating islands and floating island.
The main types of fix system include anchoring, column, piling and so on. ;;the project is demonstrating Treatment of Landfill Leachate by Using Floating Treatment Wetland Technology;what we have done to solve this problem;How They Work;Plant roots grow through the floating mat and into the water beneath, providing a large surface area for nutrient assimilation, growth of biofilms and entrapment of fine suspended particulates. ;Underneath the surface,Microbes, which are responsible for breaking down waste and nutrients, produce a sticky biofilm which grows on FTW’s matrix superstructure and the roots hanging beneath the island.
Biofilm and whatever sticks to it, such as the suspended solids present in water, forms periphyton. This is the base of the fresh water food chain. As periphyton is consumed in what we describe as “the floating supermarket effect,” ecosystem abundance results. Another smaller fraction of nutrients is taken up by plant roots, while still another fraction settles in the zone below the FTWs.
These pathways represent a concentrated wetland effect—nature’s way to clean water; The Result;Ecological Effect;the first generation: bamboo, geotechnical network structures, with low cost, the effect is poor;
the second generation: foam and metal fixed product, with low cost, simple manufacturing process etc;
t
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