Hybrid desalination processes for beneficial use of reverse osmosis brine: Current status and future prospects

Lee, Sang-Ho; Choi, June-Seok; Park, Yong-Gyun; Shon, Ho Kyong; Ahn, Chang Hoon; Kim, Seung‐Hyun

doi:10.1016/j.desal.2018.02.002

Cited by 122 publications

(42 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The valorisation of desalination waste brines can be done in the form of energy recovery through salinity gradient power technologies [534,535]. Brines from RO desalination (of seawater, typically) can be employed as high-salinity feed (concentrate) for RED to produce electrical energy, reducing the overall energy consumption of desalination.…”

Section: Energy Recoverymentioning

confidence: 99%

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

View full text Add to dashboard Cite

This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and other treatments with significant environmental benefits. ED technologies can be used in operations of concentration, dilution, desalination, regeneration, and valorisation to reclaim wastewater and recover water and/or other products, e.g., heavy metal ions, salts, acids/bases, nutrients, and organics, or electrical energy. Intense research activity has been directed towards developing enhanced or novel systems, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive. Despite few real plants having been installed, recent developments are opening new routes for the large-scale use of ED techniques in a plethora of treatment processes for wastewater.

show abstract

Section: Energy Recoverymentioning

confidence: 99%

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In this field producing more water and less greenhouse gas is a favorite (Fane 2018). Also, by eradicating the high energy consumption in desalination systems, approaching to the sustainability in the energy sector is more accessible (Lee et al 2019). • Future trends consider the use of hybrid renewables in addition to solar-powered FO and dewvaporation.…”

Section: Future Prospectsmentioning

confidence: 99%

Hybrid renewable energy systems for desalination

Esmaeilion¹

2020

Appl Water Sci

146

View full text Add to dashboard Cite

Water and energy are two key factors in human life that always control the growth and development of human societies. Climate changes, increasing the population in urban areas and industrialization, have increased the demands for freshwater around the world. Estimates show that a small percentage of all freshwater produced in the world is from renewable sources. By developing the technology, lowering equipment prices and increasing attention to the environmental problems of fossil fuels, utilizing renewable energy is growing. By providing a wide variety of conventional desalination methods driven by various types of renewable energy technologies in the world, water and energy legislators should choose different methods to meet the needs based on the local potentials by paying attention to the desalination processes and power systems. In some cases, concentrated solar power for thermal desalination or electricity generated by the photovoltaic plants for membrane desalination systems can be used in arid areas. Definitely, the most problem of using renewable sources is their unsteady natures, which using storage systems or combining with other renewable sources can solve this problem. This chapter provides extensive information about renewables, desalination and performance analysis of power systems. Reverse osmosis technique is a practical process in desalination which 69% of desalination plants use this system. Solar energy is an important source of energy for hybrid systems. The geothermal has a steady performance at a specified depth. Ultimately, obtained results from energy and exergy analysis would have provided a better insight.

show abstract

“…Also in 2018, Lee et al [26] from South Korea's GMVP project achieved power density of 6-8 W/m 2 pairing 70 g/kg NaCl draw and wastewater.…”

Section: Evaluation Of Pro Literature Through the Lens Of Power Densitymentioning

confidence: 99%

Economic framework for net power density and levelized cost of electricity in pressure-retarded osmosis

et al. 2018

View full text Add to dashboard Cite

Economic analysis is necessary to ascertain the practical viability of a pressure-retarded osmosis (PRO) system for power production, but high complexity and the lack of large scale data has limited such work. In this study, a simple yet powerful economic framework is developed to relate the lower bound of levelized cost of electricity (LCOE) to net power density. A set of simplifying assumptions are used to develop an inverse linear relationship between net power density and LCOE. While net power density can be inferred based on experimentally measured power density, LCOE can be used to judge the economic viability of the PRO system. The minimum required net power density for PRO system to achieve an LCOE of $0.074/kWh (the capacity-weighted average LCOE of solar PV in the U.S.) is found to be 56.4 W/m 2. Using this framework, we revisit the commonly cited power density of 5 W/m 2 to conclude that it is not economically viable because net power density would be even lower. Finally, we demonstrate that fundamental difference exists between power density and net power density, and as a result we recommend using net power density as a performance metric for PRO system.

show abstract

Hybrid desalination processes for beneficial use of reverse osmosis brine: Current status and future prospects

Cited by 122 publications

References 75 publications

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

Hybrid renewable energy systems for desalination

Economic framework for net power density and levelized cost of electricity in pressure-retarded osmosis

Contact Info

Product

Resources

About