1. Centre for Mined Land Rehabilitation; Sustainable Minerals Institute Univ. Queensland; Brisbane 4072 Australia
2. Australian Inst. for Bioengineering and Nanotechnology Univ. Queensland; Brisbane 4072 Australia
3. School of Chemical Engineering Univ. Queensland; Brisbane 4072 Australia
4. Dep. of Biological and Environ. Eng.; The Univ. of Tokyo; 1-1-Yayoi Bunkyo-ku Tokyo 113-8657 Japan