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Waste incineration fly ash contains a certain amount of heavy metals Pb, Cd, Cr, Cu, Zn, Hg, Ni, long residence time of these heavy metal ions in the natural environment, not to microbial degradation, but in person and accumulation of animals, and can be converted into a highly toxic heavy metal compounds caused directly or indirectly diseases. Hyperaccumulator plants to repair the heavy metal pollution of the environment, separation, extraction of heavy metals hyperaccumulator plants to heavy metal resource utilization purpose, to achieve environmental and economic benefits of unified. Collected from Wenzhou Linjiang garbage power plants, of Wenzhou Yongqiang garbage power plants fly ash materials, heavy metals in the four liquids distilled water, river water, sea water and simulated acid rain static, dynamic leaching characteristics; through plant analysis of heavy metal content and the corresponding soil samples screened with strong accumulation of heavy metals in the ability of the plant; screened plant resource reuse of fly ash simulated restoration of heavy metals, heavy metals and plants, the main results are as follows: key research on the basis of the study the composition of the heavy metal content of fly ash and static leaching characteristics of the fly ash dynamic leaching characteristics of heavy metals in a simulated acid rain, sea water, river water and distilled water. The regularity of heavy metals in its findings and the reality of fly ash leachate percolation characteristics more about fly ash heavy metal leachate can solve the problem of secondary pollution caused more desirable method measures and theoretical basis. 2 contains camphor, Bauhinia, cedar, white orchids, banyan and willow dozens of plants on the accumulation of heavy metals in the fly ash leaching solution capacity and biological repair. The results show that the above six species have strong heavy metals accumulated fly ash, newly available biological resources and methods for the restoration of the fly ash heavy metal pollution. 3 to carry out the camphor, Bauhinia and banyan bioremediation of heavy metals such as Cu, Cd, Pb and Zn in the fly ash leaching solution, and preliminary study of fly ash and heavy metals accumulate in plants harvest, extract and resources method. \metal in the recovered plants.
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