Artificial Floating Beds Technology In Three Gorges Reservoir Region Heavy Pollution Secondary Rivers Government Technology Research

After The Three Gorges Reservoir completing,it will bring a great economic benefit to flood prevention,electricity generation,and shipping and so on.However,the construction of the Three Gorges reservoir has influenced the ecological environment of the Three Gorges reservoir to some degree.After the Three Gorges reservoir storage,it has been discovered that water conservation conditions are changed:water surface becomes wide,water depth becomes deep,current of water becomes slow,massive silt deposites,the mouse of many branch river of Changjiang River becomes stagnant water region,so that abundantly nutrient salt and high quntity N,P,and sufficient sunshine,high water temperature,which cause the eutrophication consequence in the dose and branch of the Three Gorges reservoir . This kind of phenomenon has aroused the widespread interest.The artificial floating beds government technology is a breakthrough water government technology,which has the other sewage treatment technology incomparable merit. The artificial floating beds government technology has the great significance regarding the Three Gorges Reservoir Region pollution prevention.Study on the eutrophication pollution of Lin Jiang river controls on canna indica,cyperus alternifolius,cyperus alternifolius and Acorus calamus mixed planting in the artificial floating rafts with taoli, studying the removed effect of N,P,COD,NH4+-N nutrition salt and so on and the growth situation about canna indica,cyperus alternifolius,cyperus alternifolius and Acorus calamus mixed planting. The result indicates average removed rate of canna indica,cyperus alternifolius,cyperus alternifolius and Acorus calamus mixed planting artificial floating beds respective are 43.8%,40.7%,22.7%,46.3% and 40.7%,42.6%,20.5%,44.8% and 36.1%,33.6%,18.9%,40.4%,the removed effect of canna indica,cyperus alternifolius artificial floating beds is very satisfying,but the removed effect of cyperus alternifolius artificial floating beds is little worse. Nutrition salt removed quantity of the artificial floating rafts higher than plant itself, proofing the importance of root system in the artificial floating rafts control technology.As one economy,effective government technology, the artificial floating beds technology may promote the application in the Three Gorges Reservoir Region Changjiang River secondary stream pollution government.