时间：2014年12月8日（星期一）下午15：00
地点：材料科学与工程学院14号楼205学术交流室

报告摘要：
       Air pollution control (APC) residues from combustion of municipal solid waste (MSW) to produce electricity  are generally considered to be hazardous waste.  Given that global MSW generation was estimated at 1.3 Gt in 2011 and is expected to double by 2025, these APC residues represent a significant world-wide disposal problem.  Dr Stegemann will discuss the composition and leaching characteristics of APC residues, and the available management options.  In particular, she will consider the technical benefits and environmental acceptability of using APC residues in blended cement production, with a focus on the fate and behaviour of the toxic metal concentrations in the APC residues, and their effect on the technical properties of cement-based materials.

附主讲人简介：
       Dr Julia Stegemann is Reader and Director of the Centre for Resource Efficiency & the Environment (CREE), in Department of Civil, Environmental &Geomatic Engineering (CEGE), London College University (UCL) where she has worked since 2003. Her research concentrates on understanding physical, chemical and biological processes of accumulation, transformation and release of contaminants in industrial by-products and environmental media, in relation to waste prevention, treatment and remediation; she is particularly interested in development of sustainable technologies and systems that will enable return of industrial by-products and residual wastes to the resource loop. Much of her work over more than 25 years has been in collaboration with industry, and she has experience in laboratory development of technologies and test methods, preparation of regulatory guidance documents, implementation and evaluation of technologies at field scale and computer modelling. She is an author of more than 150 publications.She is Fellow of the Institute of Materials, Minerals and Mining, on the board of the International Society for Construction with Wastes, is European Editor of Environmental Engineering Science, and has been on the scientific/organising committee of 15 international conferences.
       Dr Stegemann started her career developing and validating an evaluation protocol for stabilised/solidified products for Environment Canada, in collaboration with other Canadian regulators and the US Environmental Protection Agency and industry. This approach to waste characterisation and leaching has gained international recognition, and forms the basis of current standards used in both North America and Europe, to facilitate more informed waste management decisions. She has continued to work in this area in the UK, having led a European project to develop a database and neural network models to predict the properties of stabilised/solidified products at Imperial College London, as well as a 22-partner project to optimise generic stabilisation/solidification processes for increased technology transparency and support standards for good practice, since coming to UCL.  She is currently collaborating with the China Building Materials Academy and South China University of Technology on an investigation of the metabolism of toxic metals in co-processing of industrial wastes in the cement kiln.