Existing urban water systems have reached the end of the design lifetimes. New, inventive designs are required, and these must consolidate technology and engineering with a comprehension of social systems and institutions.

The recent issue of Environmental Engineering Science, the Official Journal of the Association of Environmental Engineering and Science Professors, centers on Re-inventing Urban Water Systems. Of specific note is a discerning article that shows the difficulties and opportunities confronting with urban water system advancement.

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The article, entitled "The Innovation Deficit in Urban Water: The Need for an Integrated Perspective on Institutions, Organizations, and Technology," assumes that for new developments to be executed effectively, engineers must comprehend the social, economic, institutional, and political mechanisms that underlie the human-technology interface. Co-authors Michael Kiparsky, David Sedlak, Barton Thompson, and Bernhard Truffer (University of California at Berkeley School of Law; University of California at Berkeley School of Engineering; Stanford Law School and Woods Institute for the Environment, Stanford, CA; and Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland, individually) are on the whole individuals from a U.S. National Science Foundation Engineering Research Center concentrated on growing new ways to deal with urban water infrastructure - ReNUWIt (Reinventing the Nation's Urban Water Infrastructure).

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Domenico Grasso, PhD, Editor-in-Chief and Provost, University of Delaware said that the Kiparsky paper and the EES exceptional issue are well-timed and are bound to be among the most persuasive and significant commitments to the field of ecological engineering as of late. The comprehensive methodologies sketched out are not just appropriate for tackling the intricate issues of the urban infrastructure yet may function as a layout for tackling numerous other sociotechnological difficulties of the 21st century."

Guest Editors of this extraordinary issue of Environmental Engineering Science on Re-inventing Urban Water Systems, David Sedlak, Jörg Drewes, Colorado School of Mines, Golden, and Richard Luthy, Stanford University, gathered a chain of articles that emphasis on topics embracing advancement in complex systems; dynamic administration of natural systems to upgrade the performance of urban water infrastructure; and the administration of concentrates from water treatment procedures.

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Jennifer Becker, President of the Association of Environmental Engineering and Science Professors said that our cutting edge urban water infrastructure is one of the best engineering accomplishments of the twentieth century. This significant issue of EES features a paradigm shift in our urban water systems and that technological advancements are earnestly required if the developing requests for water and different resources are to be economically met.