Desalination for a circular water economy

Mauter, Meagan S.; Fiske, Peter S.

doi:10.1039/d0ee01653e

Cited by 88 publications

(74 citation statements)

References 14 publications

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“…Either approach could lead to a reduction in equipment (e.g., pumps, ERDs), associated costs, and specific energy consumption [49,50]. Alternatively, such a configuration could use an active-salinity-control process [51], which could facilitate system flexibility in terms of energy consumption and enable adaptation to variable power and electricity prices, ultimately meeting a vision of desalination plants that provide energy services to enable a clean electricity grid [52]. Such modifications should be explored for OARO and LSRRO as well, but COMRO seems immediately suited for such adaptations.…”

Section: Implications Of System Comparisonsmentioning

confidence: 99%

Pathways for minimal and zero liquid discharge with enhanced reverse osmosis technologies: Module-scale modeling and techno-economic assessment

2021

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While mechanical vapor compression is typically applied for the concentration of brine, new approaches that are less costly and less energy intensive are needed to facilitate minimal and zero liquid discharge. Several variations of reverse osmosis for high-salinity desalination and increasing recovery rates beyond the pressure limitation of conventional RO have been proposed in the literature. The promise of these enhanced RO approaches entails a reduction in energy consumption when compared with thermal desalination methods. In this paper, low-salt rejection reverse osmosis (LSRRO), cascading osmotically mediated reverse osmosis (COMRO), and osmotically assisted reverse osmosis (OARO) were comparatively assessed via module-scale, cost optimization models to gain an accurate perspective of the performance differences between each of these configurations. We quantified the optimal levelized cost of water (LCOW) of each technology for the case of desalinating feedwater at 70 g/L at 75% recovery, which would result in a brine concentration near 250 g/L, a level that allows further treatment with crystallizers. For baseline scenarios, LCOW results for LSRRO, COMRO, and OARO were 6.63, 7.90, and 5.14 $/m 3 of product water, respectively, while the corresponding specific energy consumption (SEC) values were 28.9, 12.8, and 10.3 kWh/m 3 . A sensitivity analysis is also presented. KeywordsBrine management Minimal liquid discharge Zero discharge Zero liquid discharge Osmotically assisted reverse osmosis High-salinity desalination

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Section: Implications Of System Comparisonsmentioning

confidence: 99%

Pathways for minimal and zero liquid discharge with enhanced reverse osmosis technologies: Module-scale modeling and techno-economic assessment

2021

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“…These desalination and reuse advances will be realized by developing a suite of Autonomous, Precise, Resilient, Intensified, Modular, and Electrified technologies (A-PRIME) that support distributed and centralized treatment at a cost comparable to other inland and industrial sources. 8 Each aspect of this hypothesis has been vetted with water treatment professionals from each PRIMA industry sector as well as NAWI's Research Advisory Council (RAC) to ensure that it is a relevant means of advancing desalination and water treatment capabilities for nontraditional source waters. These areas may be modified as new priorities and opportunities are identified.…”

Section: A-primementioning

confidence: 99%

“…These nontraditional sources can then be applied to a variety of beneficial end uses, such as drinking water, industrial process water, and irrigation, expanding the circular water economy by reusing water supplies and valorizing constituents we currently consider to be waste. 6 As an added benefit, these water supplies could contain valuable constituents that could be reclaimed to further a circular economy.…”

Section: Introduction Introductionmentioning

confidence: 99%

National Alliance for Water Innovation (NAWI) Power Sector Technology Roadmap 2021

Childress

Giammar

Jiang

et al. 2021

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Industrial WastewaterWater from various industrial processes that can be treated for reused Municipal WastewaterWastewater treated for reuse through municipal resource recovery treatment plants utilizing advanced treatment processes or decentralized treatment systems Agricultural WastewaterWastewater from tile drainage, tailwater, and other water produced on irrigated croplands as well as wastewater generated during livestock management that can be treated for reuse or disposal to the environment Mining WastewaterWastewater from mining operations that can be reused or prepared for disposal Produced WaterWater used for or produced by oil and gas exploration activities (including fracking) that can be reused or prepared for disposal Power and Cooling WastewaterWater used for cooling or as a byproduct of treatment (e.g., flue gas desulfurization) that can be reused or prepared for disposal * An important distinction for oil and gas and mining operations-upstream drilling operations fall under the Resource Extraction and downstream refining operations fall under the Industrial Sector.

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“…Several of these countries are also resource-constrained and cannot afford expensive large-scale energy-intensive desalination technologies to meet their freshwater needs. 4,5 Fortunately, many of the water-stressed countries have access to ample solar radiation resource which can enable low-cost distributed renewable water desalination technologies. 6 Solar thermal desalination offers a path towards low-cost, modular and high-efficiency desalination systems that are powered by renewable energy and are ideally suited for resourceconstrained environments.…”

Section: Introductionmentioning

confidence: 99%

Passive, high-efficiency thermally-localized solar desalination

Zhang

Zhao

et al. 2021

Energy Environ. Sci.

209

114

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Desalination for a circular water economy

Abstract: Today’s water systems are enabled by ample fresh water sources, low-cost centralized treatment, and facile wastewater disposal. Climatic change, aging infrastructure, and source water contamination have exposed the vulnerabilities of...

Cited by 88 publications

References 14 publications

Pathways for minimal and zero liquid discharge with enhanced reverse osmosis technologies: Module-scale modeling and techno-economic assessment

Pathways for minimal and zero liquid discharge with enhanced reverse osmosis technologies: Module-scale modeling and techno-economic assessment

National Alliance for Water Innovation (NAWI) Power Sector Technology Roadmap 2021

Passive, high-efficiency thermally-localized solar desalination

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