Water Innovations gives Water and Wastewater Engineers and end-users a venue to find project solutions and source valuable product information. We aim to educate the engineering and operations community on important issues and trends.
Issue link: http://wateronline.epubxp.com/i/628452
Depending on the treatment train used, the cost of treatment can be expected to be relatively uniform. As an example, the GWRS in Orange County has costs of approximately $700 per acre-foot. On the other hand, costs for distribution and brine disposal are largely site-specific and vary based on the distance that water must be conveyed. Siting an advanced treatment facility close to a drinking water facility can dramatically reduce conveyance costs compared to facilities that are located far apart, especially if there is a large change in elevation. The same is true for residuals disposal from facilities utilizing RO. In that case, facilities located on a coastline may have lower costs due to easy access to an ocean outfall. When determining whether to pursue DPR, economic and social factors should also be considered. Such factors could include energy use and carbon footprint, impact on wastewater discharges and pollution, and the economic benefit of having a local and sustainable water supply. Further detail on the economics of DPR and other water supply options can be found in the framework document, as well as the 2014 report from WateReuse, The Economics and Opportunities of Direct Potable Reuse. About Framework For Direct Potable Reuse The report "Framework for Direct Potable Reuse" is available free of charge at www.watereuse.org. The document represents a consensus among the panel, while taking into consideration input from a project advisor y committee composed of technical experts in water and wastewater treatment, as well as state and federal regulators. Members of the panel included Panel Chair Dr. George Tchobanoglous of the University of California, Davis; Dr. Joseph Cotruvo of Joseph Cotruvo & Associates; environmental engineering consultant Dr. James Crook; Dr. Ellen McDonald of Alan Plummer Associates; Dr. Adam Olivieri of EOA, Inc.; Andrew Salveson of Carollo Engineers; and Dr. R. Shane Trussell of Trussell Technologies, Inc. The panel was managed by Jeff Mosher of NWRI. n Innovative Chemical Feed Solutions * * NEW PRODUCT * * Model 4100-EC Automatic Liquid Vacuum Feeder Feed the following chemicals safely under vacuum conditions: Sodium Hypochlorite / Sodium BisulÞte / Liquid Ammonium Sulfate / Sodium Chlorite / Hydroßuorosilicic Acid / Copper Sulfate Solution / Poly Aluminum Chloride / Liquid Aluminium Sulfate / Sulfuric Acid / Hydrochloric Acid / Emulsion Polymers wateronline.com n Water Innovations 31 DIRECTPOTABLEREUSE Justin Mattingly is a research manager with the WateReuse Association and Research Foundation. WateReuse is internationally recognized as a thought-leader on alternative water supply devel- opment. It is the go-to organization for applied research, policy guidance, and educational tools on water reuse, as well as the prin- cipal influencer of public opinion, lawmakers, and policymakers on policy and projects related to water reuse. About The Author