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Workshop Agenda

  June 20, 1999 Educator's Workshop Agenda
 
Green Engineering Educator's Workshop:
New Educational Materials for the Chemical Engineering Curriculum
 
8:45 - 9:15
Overview of green engineering educational materials available for chemical engineers (PDF, 49 KB)
9:15 - 9:45
The U.S. EPA's Green Engineering Curriculum Program (PDF, 121 KB)
9:45 - 10:00
Overview of workshop / Distribution of workshop materials
10:00 - 10:15
Break
10:15 - 12:00
Case Study Modules 1-3
12:00 - 1:00
Lunch
1:00 - 3:00
Case Study Modules 4-6
3:00 - 3:15
Break
3:15 - 3:30
Discussion of EPA Awards program
3:30 - 4:15
Open discussion / More detailed review of selected case studies
 
  Case Study Modules
 
Module 1Screening chemicals based on environmental impacts (Dave Allen)

This case study examines modules and software available for screening the environmental impacts of chemicals, based only on the structure of the targeted chemicals. The case study begins with a discussion of relevant thermodynamic properties and reactions that occur in typical ambient environments.

Software for estimating these properties (based on group contribution methods) is demonstrated through two example problems. One example examines the design of solvents targeted to have specific physical and environmental properties. A second example considers the environmental partitioning of chemicals.

 
View or print : Module 1 (PDF, 151 KB)
  Module 1 (part 2) (PDF, 50 KB)
  Module 1 PowerPoint Presentation (PDF, 110 KB)
 

Module 2Premanufacture Notification (PMN) process (Dave Allen / Nhan Nguyen)

This module demonstrates the process EPA uses in evaluating new chemicals based on potential emission rates and environmental impacts. Over 2,000 chemicals are screened annually using these methods. The software tools that USEPA uses in this process are demonstrated using an actual PMN. This case study illustrates methods for estimating potential emissions from chemical processes (given little detail about the process) and methods for estimating environmental impacts. Supplementary material on selecting environmentally benign chemical synthesis methods are presented.

 
View or print : Module 2 PowerPoint Presentation (PDF, 52 KB)
  Module 2 PowerPoint Presentation A (PDF, 42 KB)
  Module 2 PMN (PDF, 13 KB)
   

Module 3Assessing the environmental performance of flowsheets (Dave Shonnard)

This case study examines modules available for screening the environmental impacts of flowsheets. It begins with a discussion of the types of environmental impacts that might be considered in evaluating flowsheets and methodologies for characterizing those impacts. The methods are demonstrated using the simple, but conceptually rich, example of an absorber for a gaseous waste system. In this example, increasing the efficiency of the pollutant removal requires increasing amounts of energy, and at a critical point, the emissions and impacts associated with increasing energy use become greater than the impacts prevented using the absorber. This example and others demonstrate the use of environmental performance indicators for flowsheets.

 
View or print : Module 3 (PDF, 190 KB)
  Module 3 PowerPoint Presentation (PDF, 173 KB)
   
Module 4Improving the environmental performance of unit operations and flowsheets (Dave Shonnard)

A number of methodologies are now available for changing flowsheet and unit operation design to improve environmental performance. Risk assessment tools, green chemistry alternatives, and pollution prevention techniques are examined to illustrate how process designs can be improved, thereby reducing or eliminating waste.

 
View or print : Module 4 (PDF, 78 KB)
  Module 4 PowerPoint Presentation PDF, 113 KB)
   

Module 5Assessing the economic performance of environmental improvements (Dave Allen)

This case study examines modules available for assessing the economic performance of environmental projects. These assessments are difficult because many of the costs associated with poor environmental performance can remain hidden in overhead charges or can be difficult to estimate. The module begins with a discussion of the magnitude of environmental costs, and the types of environmental costs that are frequently encountered in the chemical process industries. The methods are demonstrated using examples from a total cost accounting project currently underway through the American Institute of Chemical Engineers’ Center for Waste Reduction Technologies.

 
View or print : Module 5 PowerPoint Presentation (PDF, 31 KB)
   

Module 6Life Cycle Assessment (Dave Allen)

Product stewardship is becoming increasingly important and a central element of product stewardship is understanding the potential environmental impacts of a product throughout its life cycle, from raw material extraction to final product recycling or waste disposition. This module includes a brief tutorial on life cycle assessment, which is an analytic framework for evaluating a product’s environmental impacts. The concepts are demonstrated using a case study familiar to students and faculty – the selection of a beverage delivery system (paper, polystyrene or reusable cups) for a campus food service. Other case study modules (fast food packaging) are also available for presentation.

 
View or print : Module 6 PowerPoint Presentation (PDF, 31 KB)
   
Workshop Format Workshop Agenda
 

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