1. 2018
2. A study of novel acidophilic Firmicutes and their potential applications in biohydrometallurgy

   Holanda, R. (Author), Johnson, D. (Supervisor), 12 Nov 2018

   Student thesis: Doctor of Philosophy

3. Development of a novel integrated system for bioremediating and recovering transition metals from acid mine drainage

   Araujo Santos, A. (Author), Johnson, D. (Supervisor), 12 Nov 2018

   Student thesis: Doctor of Philosophy

4. 2015
5. A study of the biogeochemistry and molecular biology of a chalybeate iron-rich spa (North Wales)

   Jones, R. M. (Author), Johnson, B. (Supervisor), 2015

   Student thesis: Doctor of Philosophy

6. 2011
7. Acidophilic consortia and microbial interactions involved in securing mineral wastes and remediating mine waters

   Nancucheo, I. (Author), Johnson, B. (Supervisor), Mar 2011

   Student thesis: Doctor of Philosophy

8. 2005
9. A study of microbial communities and interactions in extremely acidic environments.

   Kimura, S. (Author), Johnson, B. (Supervisor), 2005

   Student thesis: Doctor of Philosophy

10. 2002
11. Moderately thermophilic acidophiles and their use in mineral processing

    Okibe, N. (Author), Johnson, B. (Supervisor), Jan 2002

    Student thesis: Doctor of Philosophy

12. 2000
13. Physiological and phylogenetic studies of some novel acidophilic mineral-oxidising bacteria

    Yahya, A. (Author), Johnson, B. (Supervisor), Sept 2000

    Student thesis: Doctor of Philosophy