Suggested PhD Topic (Anaerobic Digestion??)

[Nicholas Lambropoulos]

Can anyone suggest a suitable PhD topic in the area of solid waste
degradation? I have been involved in the design and construction of
landfill bioreactors and am after a few ideas on research topics that
may deal with the anaerobic digestion of municipal solid waste. The PhD
can either involve the area of landfill design or above ground in-vessel
anaerobic digestion. Is there anyone in Australia that is knowledgable
in the field?

I would value your inputs!