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A MODEL FOR INDUSTRIAL WATER REUSE: A GEOGRAPHIC INFORMATON SYSTEMS (GIS) APPROACH TO INDUSTRIAL ECOLOGY

A MODEL FOR INDUSTRIAL WATER REUSE: A GEOGRAPHIC INFORMATON SYSTEMS (GIS) APPROACH TO INDUSTRIAL ECOLOGY. Presented by Berna Yenice-Ay, Ph.D. March 12, 2003 University of Southern California. M.S. Thesis by Carolyn Eve Nobel The University of Texas at Austin 1998.

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A MODEL FOR INDUSTRIAL WATER REUSE: A GEOGRAPHIC INFORMATON SYSTEMS (GIS) APPROACH TO INDUSTRIAL ECOLOGY

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  1. A MODEL FOR INDUSTRIAL WATER REUSE: A GEOGRAPHIC INFORMATON SYSTEMS (GIS) APPROACH TO INDUSTRIAL ECOLOGY • Presented • by • Berna Yenice-Ay, Ph.D. • March 12, 2003 • University of Southern California M.S. Thesis by Carolyn Eve Nobel The University of Texas at Austin 1998

  2. Motivation • Rising water costs • Limited water supplies • Waste minimization • Pollution control issues

  3. Goals • More efficient water use • Water reuse • Conservation

  4. Terms • Reclamation: The treatment or processing of wastewater to make it reuseable • Reuse: Beneficial use of treated wastewater • Recycling: Capturing and recirculating the effluent within one water use or process

  5. Categories and Specific Examples of Water Reuse • Agricultural irrigation: Crop irrigation, commercial nurseries • Landscape irrigation: Parks, school yards, freeway medians, golf courses, cemeteries, greenbelts, residential • Industrial reuse: Cooling, boiler feed, process water, heavy construction • Groundwater recharge: Groundwater replenishment, salt water intrusion, subsidence control • Recreational and environmental reuse: Lakes and ponds, marsh enhancement, stream flow augmentation, fisheries, snowmaking • Nonpotable urban reuse: Fire protecting, air conditioning, toilet flushing

  6. A MODEL FOR INDUSTRIAL WATER REUSE • a material reuse model • identifies cost-optimal reuse scenarios • a linear programming model • Geographic Information Systems (GIS) map-based framework (integrates database operations with computer-based mapping)

  7. What is GIS? GIS: An organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information.

  8. Model • Objectives: Minimize cost and maximize fresh water conservation • Considers product purchase, treatment, and transportation costs • Decision variables: Flow rates of water from sources to destinations • Results are displayed on a map of the region along with accompanying data tables

  9. Case Study • Bayport Industrial Complex in Pasadena, Texas • Contains an industrial wastewater treatment plant, a municipal wastewater treatment plant, and over 20 manufacturing facilities

  10. Results • The optimal network reduces the fresh water consumption by 82%. The cost savings is 19%. • The water reuse model can be used for analyzing the use and reuse of other materials • Provides a quantitative tool to promote more efficient and sustainable system-based material cycles

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