A Reconnaissance-Level Quantitative Comparison of Reclaimed Water, Surface Water and Groundwater

The project provides insight into the occurrence and distribution of constituents that occur typically in very low concentrations, e.g., micrograms per liter or nanograms per liter, in reclaimed water, groundwater, and surface water....

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Honolulu Membrane Bioreactor Pilot Study

The project consisted of a side-by-side pilot demonstration of six different membrane bioreactor (MBR) systems at the Honolulu wastewater treatment plant (WWTP) in Ewa Beach, Hawaii, and a variety of activities, including bench- and pilot-scale tests, aeration testing, and a feasibility study....

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Selecting Treatment Trains for Seasonal Storage of Reclaimed Water Treatment of Influent to and Withdrawals from Storage: A Resource Guide

The project documents the water quality and cost trade-offs associated with storage options for the reclaimed water, considering the trade-offs involved in the treatment, management, and operating procedures at wastewater treatment facilities preceding discharge of the reclaimed water to the storage systems....

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Methods for Detection of Residual Concentrations of Hydrogen Peroxide in Advanced Oxidation Processes

The project developed a laboratory method for reliable quantification of hydrogen peroxide in the 0.5- to 5-mg/L concentration range that is effective in a natural water matrix as well as in the presence of combined chlorine (chloramine)....

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Formation and Fate of Chlorination Byproducts in Desalination Systems

The project assesses the occurrence of contaminants of concern in water produced by desalination systems. The project also considers the potential impacts of these contaminants on human health in desalinated water and on aquatic organisms in waters that receive desalination concentrate....

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Development of Indicators and Surrogate for Chemical Contaminant

The project identifies surrogate parameters and indicator compounds for wastewater-derived chemical contaminants that might be useful in the assessment of indirect potable reuse systems......

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Impacts of Membrane Process Residuals on Wastewater Treatment

The project provides practical guidance to utilities concerning the effects of membrane process residuals on wastewater treatment (including treatment processes, effluent quality, and water reuse and residuals management options)....

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Survey of High Recovery and Zero Liquid Discharge Technologies for Water Utilities

The project evaluates the costs of commercially available volume minimization and ZLD processing schemes over a range of size, salinity, and water composition variables. In addition to identifying and characterizing processes and developing performance and cost projections, regulatory issues associated with use of the technologies...

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Extending the Integrated Resource Planning Process to Include Water Reuse and Other Nontraditional Water Sources

The project provides guidance and examples of how water planners and managers can use the Integrated Resource Planning (IRP) process as an objective and balanced way to explore the relative merits of considering nontraditional water supply (NTWS) options alongside their suite of more typical water...

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