LAWRENCE A SIWAJEK, treasurer and co-founder of Acrion Technologies, is responsible as laboratory director for bench, laboratory and pilot scale testing and demonstration of technology conceived by Acrion, and related project management activities. Mr Siwajek possesses considerable technical and laboratory expertise in process development. He constructed and supervised operation of a full scale carbon dioxide crystallization unit, and supervised the integration of a bench scale high pressure, low temperature liquid absorption unit for toxic and hazardous contaminant removal from gases. He is author of patents related to inventions for improved processing of landfill gas, and papers on technologies related to gas separation and purification. Mr Siwajek holds a BS in chemical engineering from Case Western Reserve University.