Research On Packing Artificial Floating Beds Ecological Treatment Technology With Lin Jiang River

The artificial floating beds technology takes one of current domestic and foreign vigorous development technologies, mainly uses the soil-free cultivation technology, Uses the modern agronomy and the ecological engineering measure Integration water surface soil-free cultivation plant ecology government technology, the non-environment risk and two pollution, the affiliation terrestrial plant's biology characteristic governs carries on the water body the pollution treatment, easy to harvest. Studies the artificial floating beds technology have the important theory and the practice significance regarding the Three Gorges Reservoir Region secondary rivers water body prevention and control of pollution.The Acorus gramineus, Cyperus alternifolius.L, Vetiveria zizanioiaes are used in the experiment, the artificial floating beds take inflows with the automatical way to ecology treatment engineering research. Through monitors each water quality target, to each kind of plant's growth situation, the artificial floating beds and so on conducts the research to the water body purification effect, And carries on the analysis to the artificial floating beds environment and the economic efficiency ,the test result indicateds:(1) The average remove rate of COD, TP, the TN can achieve 18.84%,21.87%,18.06%; 44.98%,45.25%,37.66% and 42.34%, 45.82%, 40.2% respectively with the Acorus gramineus, Acorus gramineus and Cyperus alternifolius.L mixed raise, Vetiveria zizanioiaes artificial floating beds to experiment the river water of Ling Jiang river. The remove rate effect of TN and TP are good, which may be taking as the promoted cultivation plants.(2)The absorption of TN, TP with the Acorus gramineus, Acorus gramineus and Cyperus alternifolius.L mixed raise, Vetiveria zizanioiaes to occupy system of removing proportion are 2.72%, 2.48%, 1.67% and 8.26%,8.6%,8.36% respectively, The plant absorption occupies the entire floating beds system are very small. Plants direct absorption are not the main way to remove TN and TP. But the plant provide the good condition in the microorganism perched with the improvement experiment floating beds system dissolved oxygen aspect experiments and the water for the ecology method highly effective purification the pollutant .(3) The TN absorption of different artificial floating beds are the mixed crops = Acorus gramineus > Vetiveria zizanioiaes, the TP absorption are the mixed crops > the Acorus gramineus > Vetiveria zizanioiaes. The floating bed of the mixed crops plant in the aspect of nitrogen, the phosphorus absorption effect to be better.(4)To the artificial floating beds economy and the environment benefit analysis indicated that three kind of artificial floating beds can have the good the environment benefit. The application prospect is very broad.