Paper Information

Paper Title

Modeling the Recycling Infrastructure, Flows, & Associated Greenhouse Gas Emissions Across the State of Connecticut

Author(s)

Primary Author: Craig Rindt,
University of California, Irvine
Secondary Author(s):
Ayushi Khan, Yale School of the Environment
Jean-Daniel Saphores, University of California, Irvine
Barbara Reck, Yale School of the Environment

Presenting Conference

2026 REMADE® Circular Economy Tech Summit & Conference

Date Presented

March 12, 2026

Topics

Primary Topic: Systems Analysis
Secondary Topic: Techno-Economic, Material Flow, & Life-Cycle Analysis

Abstract

A detailed and localized understanding of the recycling infrastructure, recycling flows, their associated energy consumption and air pollution emissions from processing and transportation provides valuable information for recycling agencies and industry. Such information can help guide regulation and policy decisions on optimizing recycling streams and improving material recovery, recycling, and monitoring. This study builds on a comprehensive REMADE model developed for California (CA)’s recycling infrastructure that includes the mass flows of the major material streams (metals, plastics, fibers, electronic scrap), geolocated by their origin and destination, together with their associated energy use and greenhouse gas emissions, to test the transferability of the CA model and study structure to other U.S. states, namely to Connecticut (CT). Recycling flow data tracked by the CT Department of Energy & Environmental Protection are analyzed to map the quantities of recyclables and waste that are moving across facilities. The emissions associated with the collection and the movements of these material streams will be calculated using the On-Road EMFAC emissions model by standardizing it for CT. This model will be an online tool that will illustrate the different recycling flows across facilities and collection points. The CT submodel will be optimized for transferability to other states to allow a broader application of the developed recycling model in the future.