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Title: Water treatment capacity of forward osmosis systems utilizing power plant waste heat

Journal Article · · Industrial and Engineering Chemistry Research

Forward osmosis (FO) has the potential to improve the energy efficiency of membrane-based water treatment by leveraging waste heat from steam electric power generation as the primary driving force for separation. In this study, we develop a comprehensive FO process model, consisting of membrane separation, heat recovery, and draw solute regeneration (DSR) models. We quantitatively characterize three alternative processes for DSR: distillation, steam stripping, and air stripping. We then construct a mathematical model of the distillation process for DSR that incorporates hydrodynamics, mass and heat transport resistances, and reaction kinetics, and we integrate this into a model for the full FO process. Finally, we utilize this FO process model to derive a first-order approximation of the water production capacity given the rejected heat quantity and quality available at U.S. electric power facilities. We find that the upper bound of FO water treatment capacity using low-grade heat sources at electric power facilities exceeds process water treatment demand for boiler water make-up and flue gas desulfurization wastewater systems.

Research Organization:
Carnegie Mellon Univ., Pittsburgh, PA (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0024008
OSTI ID:
1185150
Journal Information:
Industrial and Engineering Chemistry Research, Vol. 745, Issue C; ISSN 0888-5885
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

References (26)

Forward osmosis: Principles, applications, and recent developments journal September 2006
Forward osmosis processes: Yesterday, today and tomorrow journal February 2012
Recent developments in forward osmosis: Opportunities and challenges journal April 2012
A novel ammonia—carbon dioxide forward (direct) osmosis desalination process journal April 2005
Global Challenges in Energy and Water Supply: The Promise of Engineered Osmosis journal December 2008
Systematic approach for draw solute selection and optimal system design for forward osmosis desalination journal January 2012
Energy requirements of ammonia–carbon dioxide forward osmosis desalination journal March 2007
Pilot demonstration of the NH3/CO2 forward osmosis desalination process on high salinity brines journal March 2013
Experimental Study of a 4040 Spiral-Wound Forward-Osmosis Membrane Module journal September 2011
Energy harvesting, reuse and upgrade to reduce primary energy usage in the USA journal October 2011
Utilization of Heat, Power, and Recovered Waste Heat for Industrial Processes in the U.S. Chemical Industry journal May 2009
Quantity, Quality, and Availability of Waste Heat from United States Thermal Power Generation journal June 2015
Cost-effective design of a draw solution recovery process for forward osmosis desalination journal October 2013
Operation and simulation of pilot-scale forward osmosis desalination with ammonium bicarbonate journal February 2015
Modeling of Carbon Dioxide Absorption by Aqueous Ammonia Solutions Using the Extended UNIQUAC Model journal December 2010
Experimental Studies and Rate-Based Process Simulations of CO 2 Absorption with Aqueous Ammonia Solutions journal March 2012
A novel process for capturing carbon dioxide using aqueous ammonia journal April 2013
A comprehensive model for regeneration process of CO 2 capture using aqueous ammonia solution journal October 2014
The Future of Seawater Desalination: Energy, Technology, and the Environment journal August 2011
Thermodynamic Modeling of the NH 3 –CO 2 –H 2 O System with Electrolyte NRTL Model journal October 2011
New mass-transfer correlations for packed towers journal March 2011
Mathematical model of flat sheet membrane modules for FO process: Plate-and-frame module and spiral-wound module journal September 2011
Simulation of forward osmosis membrane process: Effect of membrane orientation and flow direction of feed and draw solutions journal August 2011
Influence of concentrative and dilutive internal concentration polarization on flux behavior in forward osmosis journal November 2006
Bidirectional Permeation of Electrolytes in Osmotically Driven Membrane Processes journal December 2011
Review of Water Use in U.S. Thermoelectric Power Plants journal December 2012

Cited By (1)

Membrane-based treatment of shale oil and gas wastewater: The current state of knowledge journal June 2019