Short Rotation Coppice (SRC) Willow (Salix spp.) can take up large amounts of water and nutrients and is therefore ideally suited to use for the biofiltratfion and bioremediation of effluents and sludges. All three regions (Northern Ireland, border areas of the Republic of Ireland and South West Scotland) have difficulties with the environmentally sustainable disposal of sewage effluents. There are numerous small inefficient treatment works, septic tanks etc. which are causing serious pollution of groundwater and waterways. The use of SRC willow as a biofilter offers significant opportunities for the tertiary polishing of wastewater streams from water treatment works / septic tanks, farm wastewater and possibly effluents from a range of other sources e.g. food processors, landfill sites.