The WtERT Conference series, initiated in 2003 at Columbia University, has grown into a leading international platform for advancing Waste-to-Energy and sustainable waste management. These annual meetings bring together global experts to share research, innovation, and best practices, contributing to the development of circular economy solutions worldwide.

Welcome to SOFOS: A Comprehensive Online Database
Managed by WtERT® and the Earth Engineering Center at Columbia University, SOFOS is a vast collection of research dedicated to the advancement of sustainable waste management that promotes knowledge sharing through numerous publications, dissertations, and studies.
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