Randerson, Peter - Cardiff University

研究领域

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.

近期论文

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Williams, A.et al. 2016. Distribution of beach litter along the coastline of Cádiz, Spain. Marine Pollution Bulletin 107(1), pp. 77-87. (10.1016/j.marpolbul.2016.04.015) pdf Yhnell, E.et al. 2016. The impact of attaining the Welsh Baccalaureate Advanced Diploma on academic performance in bioscience higher education. International Journal of Science Education 38(1), pp. 156-169. (10.1080/09500693.2015.1135353) pdf Białowiec, A., Albuquerque, A. and Randerson, P. F. 2014. The influence of evapotranspiration on vertical flow subsurface constructed wetland performance. Ecological Engineering 67, pp. 89-94. (10.1016/j.ecoleng.2014.03.032) Williams, A., Randerson, P. and Alharbi, O. 2014. From a millennium base line to 2012: Beach litter changes in Wales. Marine Pollution Bulletin 84(1-2), pp. 17-26. (10.1016/j.marpolbul.2014.05.017) Bialowiec, A.et al. 2012. Nitrogen removal from landfill leachate in constructed wetlands with reed and willow: Redox potential in the root zone. Journal of Environmental Management 97, pp. 22-27. (10.1016/j.jenvman.2011.11.014) Bialowiec, A.et al. 2012. The influence of plants on nitrogen removal from landfill leachate in discontinuous batch shallow constructed wetland with recirculating subsurface horizontal flow. Ecological Engineering 40, pp. 44-52. (10.1016/j.ecoleng.2011.12.011) Bialowiec, A., Janczukowicz, W. and Randerson, P. F. 2011. Nitrogen removal from wastewater in vertical flow constructed wetlands containing LWA/gravel layers and reed vegetation. Ecological Engineering 37(6), pp. 897-902. (10.1016/j.ecoleng.2011.01.013) Randerson, P. F., Moran, C. and Bialowiec, A. 2011. Oxygen transfer capacity of willow (Salix viminalis L.). Biomass & Bioenergy 35(5), pp. 2306-2309. (10.1016/j.biombioe.2011.02.018) Williams, H.et al. 2010. Diurnal cycling of dissolved gas concentrations in a willow vegetation filter treating landfill leachate. Ecological Engineering 36(12), pp. 1680-1685. (10.1016/j.ecoleng.2010.07.008)