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Title: Membraneless Water Desalination System

 [1];  [1];  [1]
  1. Reactive Innovations, Westford, MA (United States)
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Reactive Innovations, Westford, MA (United States)
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Resource Type:
Technical Report
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United States
36 MATERIALS SCIENCE; 42 ENGINEERING; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; Drinking Water; Desalination; Capacitive Deionization; Membraneless; Membrane-Free

Citation Formats

Kimble, Michael, Slote, Benjamin, and Salley, Edward. Membraneless Water Desalination System. United States: N. p., 2017. Web.
Kimble, Michael, Slote, Benjamin, & Salley, Edward. Membraneless Water Desalination System. United States.
Kimble, Michael, Slote, Benjamin, and Salley, Edward. 2017. "Membraneless Water Desalination System". United States. doi:.
title = {Membraneless Water Desalination System},
author = {Kimble, Michael and Slote, Benjamin and Salley, Edward},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 8

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  • The desalination subsystem of the solar-powered desalination pilot project located at Yanbu, Saudi Arabia, was operated successfully for two years. Water production rates of 180 m/sup 3//day can be obtained for a period of 24 hours. In addition, once the proper procedures are followed, water production can continue for long periods of time at rates of 135 m/sup 3//day. Electrical energy costs to produce one m/sup 3/ of potable water is SR 1.66 in Saudi Arabia and $1.66 to $2.21 in the United States. As with any new process, a number of important details must be learned to obtain themore » most out of the system. Some of these details are: (1) product water production rate and efficiency are maximized for this system at 10% salinity and greater than 3/degree/C, (2) the anhydrous ammonia must be kept clean, (3) the ice in the freezer tubes must be melted without decreasing the salinity of the mixture in the slurry separator, (4) the salinity of the mixture going through each of the freezer tubes must be the same, and (5) the salinity of the slurry must be less than 11%. The authors believe that a subsequent design of an indirect-contact freeze desalination sub-system can be successful. Maintenance of the desalination subsystem has been nominal with only about 6/1/2/ person days required per month. Proper operating procedures and some redesign of the desalination subsystem should minimize the required maintenance. 4 refs., 7 figs., 4 tabs.« less
  • Catalytic Inc. was awarded a contract to conduct a preliminary system design and cost analysis for a brackish water desalination project to be located in Brownsville, Texas. System analyses and economic analyses were performed to define the baseline solar energy desalination system. The baseline system provides an average daily product water capacity of 6000 mT. The baseline system is optimal relative to technological risk, performance, and product water cost. Subsystems and their interfaces have been defined and product water cost projections made for commercial plants in a range of capacities. Science Applications, Inc. (SAI), subcontractor to Catalytic, had responsibility formore » the solar power system. This, the final report, summarizes the work performed under the Phase I effort.« less
  • Currently, water utility districts in the East Montana area subdivisions are either unable to provide potable water within acceptable federal and/or state drinking water standards, or furnish an adequate water supply to area residents. This preliminary research study ascertained the economical and technical feasibility of a desalination plant to treat brackish groundwater for potable use. Population growth, and the current and projected water demand and consumption were evaluated for the area. Water quality characterization of the local ground-water supply was conducted to evaluate the chemical composition and suitability of the groundwater for desalination. Reverse osmosis, electrodialysis, and multistage flash distillationmore » were evaluated on an economic and technical basis. The objective was to determine the least expensive system that produced a reliable water supply within federal and/or state drinking water standards. In conjunction, an evaluation of numerous brine disposal technologies was made based on economics, technical feasibility, and federal and state regulations. Several recommendations are presented that met the objectives of this study. A pilot desalination plant investigation is proposed.« less
  • The details of the design of a conceptual baseline solar desalination plant are provided. Yanbu, Saudi Arabia is the site for the plant. Details are defined for several of the plant subsystems including: energy storage, energy delivery, reverse osmosis/multiple effect distillation, water storage, waste disposal, backup power generation, controls and instrumentation, data acquisition, and facilities and enclosures subsystems. The plant equipment is listed and process flow diagrams are included. Cost estimates and economic analyses of the plant are documented. (BCS)
  • The design of a solar powered water desalination system is presented. Design data including insolation and climate of the Yanbu, Saudi Arabia site are included. Two solar desalination designs were developed including: (1) a conceptual baseline plant powered by a solar central receiver-heliostat field, and (2) a pilot plant that demonstrates and evaluates the design features of the baseline plant. The desalination process involves a hybrid reverse osmosis/multiple effect distillation process. The performance and economics of the design plants are analyzed. (BCS)