DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Treatment of brackish water for fossil power plant cooling

Journal Article · · Nature Water
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [3]
  1. University of Wyoming, Laramie, WY (United States)
  2. University of Wyoming, Laramie, WY (United States); Carnegie Mellon University, Pittsburgh, PA (United States)
  3. National Energy Technology Laboratory (NETL), Pittsburgh, PA (United States)
  4. National Energy Technology Laboratory (NETL), Pittsburgh, PA (United States); National Energy Technology Laboratory Support Contractor, Pittsburgh, PA (United States)

In this study, we evaluated the technical, economic and environmental impacts of retrofitting brackish groundwater treatment systems at existing coal- and gas-fired electric generating units (EGUs) to reduce freshwater consumption in wet cooling towers. Based on fleet averages, retrofitting brackish water treatment systems decreases unit freshwater consumption by 94–100%, while increasing the cost of electricity generation by 8–10%. The unit capacity shortfalls are less than 1.1%. The resulting cost of freshwater consumption savings by brackish water treatment is US$1.7 m-3 and US$2.9 m-3 on average for coal- and gas-fired EGUs, respectively. However, these trade-offs are highly affected by the brine disposal method. The use of thermal zero liquid discharge for brine disposal can roughly double the average cost of freshwater consumption savings. The cost-effectiveness of brackish water treatment compared with dry cooling deployment depends on how concentrated brines are managed. In conclusion, the identified trade-offs and their dependence fill knowledge gaps to better inform water management.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy and Carbon Management (FECM)
OSTI ID:
1994401
Journal Information:
Nature Water, Journal Name: Nature Water Journal Issue: 5 Vol. 1; ISSN 2731-6084
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Water Atlas Features Database dataset January 2021
Thermal Desalination: Performance and Challenges book January 2020
Transitioning to zero freshwater withdrawal in the U.S. for thermoelectric generation journal October 2014
Energy-efficient and -economic technologies for air conditioning with vapor compression refrigeration: A comprehensive review journal December 2018
Dry cooling retrofits at existing fossil fuel-fired power plants in a water-stressed region: Tradeoffs in water savings, cost, and capacity shortfalls journal January 2022
Upper Colorado River Basin 20th century droughts under 21st century warming: Plausible scenarios for the future journal January 2021
Use of antiscalants for mitigation of silica (SiO2) fouling and deposition: fundamentals and applications in desalination systems journal August 2004
Multi-objective optimization of RO desalination plants journal March 2008
Analysis of specific energy consumption in reverse osmosis desalination processes journal April 2018
Sustainable RO desalination – Energy demand and environmental impact journal December 2017
Novel multi-stage flash (MSF) desalination plant driven by parabolic trough collectors and a solar pond: A simulation study in UAE journal October 2018
Techno-economic assessment of multi-effect distillation process for the treatment and recycling of ion exchange resin spent brines journal April 2019
Palmitic acid based environmentally benign corrosion inhibiting formulation useful during acid cleansing process in MSF desalination plants journal December 2019
Techno-economic analysis of converting oil & gas produced water into valuable resources journal May 2020
A systematic review and statistical analysis of nutrient recovery from municipal wastewater by electrodialysis journal January 2021
Energy efficient vortex-enhanced water evaporation technology for concentrated brine management: Theory and process simulation evaluation journal January 2022
Performance and cost of wet and dry cooling systems for pulverized coal power plants with and without carbon capture and storage journal October 2010
The potential for brackish water use in thermoelectric power generation in the American southwest journal February 2020
Management and dewatering of brines extracted from geologic carbon storage sites journal August 2017
Recent advances in vapor compression cycle technologies journal December 2015
Evaluation and minimisation of energy consumption in a medium-scale reverse osmosis brackish water desalination plant journal March 2020
Forward osmosis technology for water treatment: Recent advances and future perspectives journal January 2021
Environmental impacts of desalination and brine treatment - Challenges and mitigation measures journal December 2020
Energy consumption and environmental impact assessment of desalination plants and brine disposal strategies journal March 2021
Energy consumption and water production cost of conventional and renewable-energy-powered desalination processes journal August 2013
Vapor compression heat pumps with pure Low-GWP refrigerants journal March 2021
The state of desalination and brine production: A global outlook journal March 2019
Zero-liquid discharge (ZLD) technology for resource recovery from wastewater: A review journal September 2019
Can we beneficially reuse produced water from oil and gas extraction in the U.S.? journal May 2020
A membrane-based recycling process for minimizing environmental effects inflicted by ion-exchange softening applications journal September 2019
Brackish water desalination using reverse osmosis and capacitive deionization at the water-energy nexus journal September 2020
A Techno-Economic Assessment of Hybrid Cooling Systems for Coal- and Natural-Gas-Fired Power Plants with and without Carbon Capture and Storage journal March 2016
The Global Rise of Zero Liquid Discharge for Wastewater Management: Drivers, Technologies, and Future Directions journal June 2016
Systems Analysis of Physical Absorption of CO 2 in Ionic Liquids for Pre-Combustion Carbon Capture journal March 2018
Energy Consumption of Brackish Water Desalination: Identifying the Sweet Spots for Electrodialysis and Reverse Osmosis journal January 2021
Analysis of Brackish Water Desalination for Municipal Uses: Case Studies on Challenges and Opportunities journal February 2022
Zero Liquid Discharge and Water Reuse in Recirculating Cooling Towers at Power Facilities: Review and Case Study Analysis journal January 2022
Water Use at Pulverized Coal Power Plants with Postcombustion Carbon Capture and Storage journal March 2011
Techno-Economic Assessment of Polymer Membrane Systems for Postcombustion Carbon Capture at Coal-Fired Power Plants journal February 2013
Geographic, Technologic, And Economic Analysis of Using Reclaimed Water for Thermoelectric Power Plant Cooling journal March 2014
Drought and climate change impacts on cooling water shortages and electricity prices in Great Britain journal May 2020
Environmental flow limits to global groundwater pumping journal October 2019
Mapping water availability, cost and projected consumptive use in the eastern United States with comparisons to the west journal December 2017
Water Atlas Features Database dataset January 2021
Water-Related Power Plant Curtailments: An Overview of Incidents and Contributing Factors report December 2016
Estimated use of water in the United States in 2015 report June 2018
Brackish groundwater in the United States report January 2017
Desalination Technologies for Developing Countries: A Review journal January 2018
A Review of the Water Desalination Technologies journal January 2021
Commercial Thermal Technologies for Desalination of Water from Renewable Energies: A State of the Art Review journal January 2021
Feed Spacer Geometries and Permeability Coefficients. Effect on the Performance in BWRO Spriral-Wound Membrane Modules journal January 2019