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

   Awdur: Holanda, R., 12 Tach 2018

   Goruchwylydd: Johnson, D. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

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

   Awdur: Araujo Santos, A., 12 Tach 2018

   Goruchwylydd: Johnson, D. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. 2005
5. A study of microbial communities and interactions in extremely acidic environments.

   Awdur: Kimura, S., 2005

   Goruchwylydd: Johnson, B. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

6. 2002
7. Moderately thermophilic acidophiles and their use in mineral processing

   Awdur: Okibe, N., Ion 2002

   Goruchwylydd: Johnson, B. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

8. 2000
9. Physiological and phylogenetic studies of some novel acidophilic mineral-oxidising bacteria

   Awdur: Yahya, A., Medi 2000

   Goruchwylydd: Johnson, B. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth