L.F. Diaz*, G.M. Savage, and C.G. Golueke. 1998. Sustainable community systems: The role of integrated solid waste management.  
In: Integrated Bio-Systems in Zero Emissions Applications.
Proceedings of the Internet Conference on Integrated Biosystems.
Eds: Eng-Leong Foo & Tarcisio Della Senta. 1998 http://www.ias.unu.edu/proceedings/icibs/diaz 
 
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About the Authors
Dr. Luis Diaz 
CalRecovery , Inc., 725C Alfred Nobel Drive, 
Hercules, CA  94547, USA  E-mail: ludiaz@calrecovery.com 
Dr. Luis Diaz graduated from the University of California at Berkeley and received his doctorate in Environmental Engineering on integrated waste management systems.  After graduation, he spent a few years at Berkeley doing research under Dr. C. G. Golueke on several alternatives to land disposal. In 1975 Luis Diaz founded CalRecovery, Inc. and has been the President of CalRecovery since then.  The company specializes in waste management and has projects in many countries throughout the world. He is also the Consulting Editor of BioCycle, Managing Editor of Waste Management & Research, and member of the Editorial Board of a few other publications in the field of waste management.  He has published several books and articles in solid waste management; a recent book published through the International Solid Waste Association (ISWA) is "Solid Waste Management for Economically Developing Countries".  
      Luis Diaz has a long standing interest in environmental issues associated with developing countries and have had the opportunity of working in several of them in Asia, Africa, the western Pacific Islands, Latin America and the Caribbean. 

Abstract 
An approach to the design of sustainable systems for meeting the basic urban services, as well as the food and energy requirements, of communities of different sizes is discussed, using integrated systems as a common design feature.  The presentation begins with a definition of a sustainable system and includes discussions on integrated solid waste management and defining the system boundary.  Some components of the overall system (solid waste, wastewater treatment, food production, energy production, and others) are described, along with the characteristics that are common among two or more of the components, thus enabling their meshing into integrated systems.  
     Examples of integrated and sustainable systems are presented in the form of material and energy balances, including one integrated system composed of solid waste management, wastewater treatment, energy production, and food production facilities.  In this example, nutrient and energy requirements are used as the common bases of design and integration.  
    Key Words:  sustainable integrated solid waste management,  process models, community systems, recycling, system modeling, unit operation, energy conservation, system optimization, resource conservation