Please find below details of four PhD scholarships in the areas of resource recovery and environmental impacts assessments, LCA etc.
Deadline 15th March 20103R Scholarships available (
check www.3R.env.dtu.dk for more details)
PhD 16: Resource and environmental impacts assessment of recycling of construction and demolition waste (C&D waste).Construction and demolition (C&D) waste is one of the largest waste types in Denmark and the one showing the highest rate of recycling (>95%). However, the current recycling practice may be threatened by new regulation and lack of a holistic assessment of the overall benefits of recycling of C&D waste. Examples are: restrictive leaching test criteria cause testing of granulated concrete often to exceed limit values in particular for Cr; the extended producer responsibility applies also to reused concrete and may lead to excessive caution and thus with time may reduce recycling. A main aspect is that a careful mapping of C&D waste may show that only a very small part of the C&D waste stream may constitute a real risk while the remaining part is safely recyclable.
PhD 17: LCA model for sewage sludge - an EASEWASTE extension.The project addresses resources and environmental impacts associated with management of sewage sludge by developing a special version of the waste-LCA-model EASEWASTE (Kirkeby et al,. 2006) that can assess the management of various types of sewage sludge as they are generated at sewage works. The sludge may undergo dewatering, transportation, digestion, composting, incineration, nutrient-recovery, landfilling or be use on land. The various management options provide different possibilities with respect to resource and energy recovery and cause different environmental impacts.
PhD 18: Inclusion in LCIA of human health impacts from occupational indoor or outdoor exposure to chemicals, pathogens and dust in waste management systems. The project addresses human health impacts following from occupational exposure to chemicals, dust or pathogens for operators involved in the centralized sorting of waste or in the different treatments of the resulting waste fractions. It is expected that these human health impacts for some waste treatment technologies may be at least as important as the human health impacts caused by emissions to the environment, but it is not supported by any of the existing methods for life cycle assessment (LCA) and hence also not addressed by the EASEWASTE tool for LCA of waste management systems.
PhD 19: Innovations in design for recycling, collection and automated central recognition and sorting The project shall identify and test upcoming methods for ‘waste design & material tagging’ paired with technologies for recognition/identification for centralized automated sorting/separation of waste streams with the aim of enhanced material recovery. A set of scenarios for future waste design and sorting and collection systems will be developed, and the efficiency of automated sorting of the waste streams deriving from these systems into recyclable waste fractions in lab scale will be documented. Finally, the technical, economic and environmental feasibility of the developed waste system designs will be analyzed by a system analysis approach.
Regards
Abhi
Labels: 3R, 3R.env.dtu.dk, Abhishek Agarwal, construction demolition waste, energy, environmental impact analysis, LCA, LCIA, PhD scholarship, resource recovery, Waste Management, www.abhibiz.co.uk