ヒョウタンゴケによる水環境保全と金属資源回収技術

概要

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Bryophyte diversity is very important for the development of bio-sorption systems of water contaminated with metals. Funaria hygrometrica Hedw. is one of the useful species and so-called 'ash-tolerance moss' and their colonies grow on waste area (e.g. final landfill, smelter). Funaria moss-filtration technology was developed on a novel conceptual bio-sorption system using the protonemal cells of the moss F. hygrometrica. The technology was checked for removal rate of lead from a solution (100μM PbCl_2) by X-ray fluorescence micro-analyzer (XRF), inductively coupled plasma mass spectrometry (ICP-MS) and bioassay test. The technology was also checked for gold adsorption from a solution (100μM AuCl). Moreover, we develop on the bio-sorption system using a novel mutant cells which created by ion-beam irradiation technology. We found optimum irradiation dose condition of four kinds of heavy-ion beam to get a lot of mutants. We established an original screening system with XRF and cluster analysis for phyto-mining.
2010-05-31