Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 46, Issue 15, Pages 23083-23094Publisher
WILEY-HINDAWI
DOI: 10.1002/er.8607
Keywords
brine treatment and valorization; desalination brine; high-pressure reverse osmosis (HPRO); minimal liquid discharge (MLD); saline wastewater (brine); zero liquid discharge (ZLD)
Categories
Ask authors/readers for more resources
High-pressure reverse osmosis (HPRO) is a promising technology for desalination and valorization of brine effluents. By adjusting the recovery rate, feed brine temperature, and pressure, energy consumption can be reduced and permeate flow rate and concentration can be increased.
Reverse osmosis (RO) is nowadays considered to be the most dominant desalination technology. Nonetheless, due to osmotic pressure constraints, conventional RO cannot desalinate brine effluents (>70 g/L of total dissolved solids [TDS]). Thus, high-pressure RO (HPRO), that is, RO operating at a pressure of more than 82 bar, has recently attracted the interest of the water and wastewater industry. To this aim, a process simulation for the HPRO process was implemented and several sensitivity analyses were conducted for the first time. The results showed that by increasing the recovery rate by 0.05, energy consumption decreased by 3.5%. An increase in the feed brine temperature from 5 degrees C to 30 degrees C increases the permeate flow rate (up to 0.929 m(3)/h), the permeate concentration (up to 468 mg/L TDS), and the recovery rate (up to 0.435). A 10-bar pressure increases the permeate flow by approximately 9.8% and decreases the permeate concentration by approximately 6 mg/L TDS. Moreover, the use of an energy recovery device significantly reduces energy consumption by 26% (from 4.93-5.10 to 3.65-3.78 kWh/m(3)). Overall, HPRO is a promising technology for brine treatment and valorization in zero liquid discharge and minimal liquid discharge systems.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available