Application of two-stage reverse osmosis system for desalination of high-salinity and high-temperature seawater with improved stability and performance

Kim, Jungbin; Park, Ki Ho; Hong, Seungkwan

doi:10.1016/j.desal.2020.114645

Cited by 45 publications

(27 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Reverse osmosis is a membrane separation method whereby miscible solutions of different concentration are separated by a membrane that is permeable to the solvent but nearly impermeable to the solute (Kim et al 2020;Ligaraya et al 2020;Monjezi et al 2020). Reverse osmosis derives its name from the technical meaning of the process.…”

Section: Introductionmentioning

confidence: 99%

“…One stage operation can only achieve percentage solute rejection of 97-99%. To achieve approximately 100% rejection of solute, multiple stage reverse osmosis plants are usually employed in industrial desalination of seawater (Cath et al 2006;Kim et al 2020). Figure 2 shows a typical two-stage, three-pass reverse osmosis for desalination of seawater.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Process simulation of modelled reverse osmosis for desalination of seawater

Salahudeen

2021

Water Practice and Technology

View full text Add to dashboard Cite

Model equations for prediction of process parameters of reverse osmosis for desalination of seawater were developed via mathematical derivation from basic equations for reverse osmosis process. A model equation relating the interfacial solute concentration () with the process pressure difference () was developed. Taking the of a reverse osmosis as the basic independent variable, further model equations relating other process parameters such as the solute concentration polarity , water flux , osmotic pressure , water output rate (q), power density (Pd) and specific energy consumption (SEC) were developed. Simulation of a hypothetical reverse osmosis data using Microsoft Excel Worksheet and a Microsoft Windows 10 on a 64-bit operating system was carried out. Simulation results showed that the optimum fluid bulk concentration was = 0.0004 mole/cm3. The optimum rate of increase in the solute rejection factor per unit rise in ΔP was 0.45%. The optimum solute rejection factor was 97.6%. The optimum water output rate, specific energy consumption and power density were 103.2 L/h, 3.65 kWh/m3 and 6.09 W/m2, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Process simulation of modelled reverse osmosis for desalination of seawater

Salahudeen

2021

Water Practice and Technology

View full text Add to dashboard Cite

show abstract

“…In the typical SWRO system, pretreatment processes are utilized to ensure all the particulates are removed before the stream reaching the membranes without the incorporation of any strainers [ 5 , 25 , 26 ]. However, such pretreatment process is sensitive to the changes of source water characteristics, which would lead to a large consumption of processing chemicals, high operational costs and deterioration of environment [ 27 , 28 ]. Thus, it is desired to come up with new processes that allow minimum consumption of chemicals in different application scenarios.…”

Section: The Main Technical Progressmentioning

confidence: 99%

Progress and Perspectives of Desalination in China

Ruan

Wang

et al. 2021

Membranes

View full text Add to dashboard Cite

In recent decades, the ever-growing demands for clean water in households and industries have urged researchers to take every possible step to deal with the global water crisis. Seawater desalination has turned out to be the most promising and efficient way to provide clean water. Owing to the advancement of synthetic chemistries and technologies, great success has been achieved in the desalination and utilization of seawater worldwide. China, with the world’s largest population, has pushed the development of desalination and multipurpose utilization of seawater further in respect of materials, technologies and services, etc. This review reports recent progress of desalination technologies accomplished in China, from the viewpoints of facilities and equipment, collaborations, technologies, applications, research abilities, services, and standard systems. Inspired by the Fourteenth Five-year Plan, it also proposes future perspectives of desalination in China.

show abstract

“…Desalination of seawater using reverse osmosis (RO) is widely considered to be the most efficient and profitable way not only to produce of fresh water for populations but also to treat water for industrial uses [1]. The large amount of solid waste generated from RO plants in terms of spent membranes should be correctly managed.…”

Section: Introductionmentioning

confidence: 99%

Recycling of Spent Reverse Osmosis Membranes for Second Use in the Clarification of Wet-Process Phosphoric Acid

et al. 2021

View full text Add to dashboard Cite

Various techniques have been used to “clean-up” wet-process phosphoric acid such as precipitation, flotation and adsorption. To address the potential of membrane processes in the phosphoric acid clarification process, this study explores the benefits of membrane techniques as a green separation technique for phosphoric acid clarification in an eco-efficient way through the use of recycling spent reverse osmosis membrane. Regenerated membrane was used to study the phosphoric acid clarification at a laboratory scale. They were immersed in an oxidizer for at most seven days. The samples were characterized systematically before immersion in an oxidant media. In this study, the potential to regenerate spent membranes and application of this media to clarify the 29% P2O5 phosphoric acid was demonstrated. This study shows, through experiments, that the reverse osmosis (RO) membranes could achieve a rejection of 70% and 61% for suspended solid and organic matter, respectively. These promising results will pave the way for implementation of these membranes in phosphoric acid treatment. Moreover, besides being economically advantageous, the use of the spent membrane is likely an environmentally friendly route (no waste, no organic solvent and effluent to be regenerated later on).

show abstract

Application of two-stage reverse osmosis system for desalination of high-salinity and high-temperature seawater with improved stability and performance

Cited by 45 publications

References 48 publications

Process simulation of modelled reverse osmosis for desalination of seawater

Process simulation of modelled reverse osmosis for desalination of seawater

Progress and Perspectives of Desalination in China

Recycling of Spent Reverse Osmosis Membranes for Second Use in the Clarification of Wet-Process Phosphoric Acid

Contact Info

Product

Resources

About