Dr Peter Randerson - PhD
Telephone:+44 (0)29 208 74148
Fax:+44 (0)29 208 74116
Location:Cardiff School of Biosciences, The Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX
My research interests are on pollutant removal and nutrient recovery from effluents and waste water (biofiltration), using constructed wetland systems, and on the production of biomass crops.
Research focussed initially on wetland beds planted with reed and willow for landfill leachate treatment. Field studies involved the novel use of membrane-inlet mass spectrometry (developed at Cardiff University) for in-situ measurements of dissolved gases to monitor spatial and temporal changes in the sub-surface environment of a tidal flow willow bed. This technique is now being applied to mesocom tanks planted with reed and willow to monitor N removal capability in low-oxygen, low-redox, inundated environments. Micro-electrode measurements of oxygenation by the roots of individual willow and reed plants in laboratory systems demonstrate the capacity of these plants to modify the rhizosphere environment, and highlight their essential role in the process of N removal by the microbial community in biofiltration systems.
I am also interested in developing low-input regimes for production of short rotation willow coppice and biomass grasses in marginal uplands of Wales and implications for land use and conservation.