纺织产品的闭环回收系统的研究模型(项目)

National Textile Center: Annual Report

Logistics of Closed Loop Textile Recycling

Project No. S09-NS04

Competency: Management Systems

Project Team:

Jeffrey A. Joines, Leader, NC State University, JeffJoines@

Kristin Thoney, NC State University, Kristin_thoney@

Russell King, NC State University, king@

Gilbert O’Neal, NC State University and ITT, wgoneal@

Students:

Iurii Sas, Ph.D. Student, NC State University

James Lavin, Ph.D. Student, NC State University

Tyron Keys , M.S. Student, NC State University

James Spratley, M.S. Student, NC State University

Ryan Woolard, M.S. Student, NC State University

Scott Ryan, Undergraduate Student, NC State University

Industry Partners: VF Corporation and the ITT Research Consortium (), Wake County; Cause for Paws; DR3; Original Mattress Factory; New Life Plastic Recycling

Goal Statement

The goal of this project will be to determine how to design robust closed loop recycling systems for different sectors of the textile complex, addressing similarities and differences in methods of collection, distribution networks, and manufacturing management strategies. The outcome will be a set of new optimization models that can be used to design the closed loop system as well as forecast estimation models of returned products. From these models, companies will be able to determine the efficiencies and cost effectiveness of their proposed closed loop recycling systems. Specific targets of the current project are the following:

∙Develop a series of models for the reverse logistics problem that will focus on a variety of textile product categories (carpets, apparel, upholstery, industrial fabrics, etc.);

∙Develop a methodology for determining forecast estimates of the reverse material demand stream (i.e., recycled products);

∙Develop a methodology and framework for gathering and using all the information to solve these models;

∙Create econometrical cost models to compare effectiveness of recycled material to virgin polymer/material;

and

∙Validate the methodology by developing a simulation of the closed loop network designed.

Abstract

Designing and optimizing the supply chain has become a priority as well as a necessity for the survival of the US textile complex. However, the focus has been primarily on forward supply chain operations, and there has been very little consideration of utilizing recovered products or recycled raw materials and the reverse supply chain. As such, many of the current networks and/or products are currently not suitable for closed loop recycling. Closed loop recycling is becoming increasingly important due to consumers’ heightened environmental consciousness, governmental legislation, and raw material costs owing to fluctuations in oil prices. In 2008, the United States generated 250 million tons of municipal solid waste. Of this total disposal, 12.4 million tons were discarded textile