Polyamide reverse osmosis membrane compaction and relaxation: Mechanisms and implications for desalination performance

J Wu, J He, JA Quezada-Renteria, J Le, K Au… - Journal of Membrane …, 2024‏ - Elsevier
This work investigates the compaction and relaxation behavior of composite reverse
osmosis (RO) polyamide (PA) selective layers, utilizing non-equilibrium molecular dynamic …

Thin-film composite membrane compaction: exploring the interplay among support compressive modulus, structural characteristics, and overall transport efficiency

C Xu, Z Wang, Y Hu, Y Chen - Environmental Science & …, 2024‏ - ACS Publications
Water scarcity has driven the demand for water production from unconventional sources and
the reuse of industrial wastewater. Pressure-driven membranes, notably thin-film composite …

Molecular mechanisms of thickness-dependent water desalination in polyamide reverse-osmosis membranes

J He, T Arbaugh, D Nguyen, W **an, EMV Hoek… - Journal of Membrane …, 2023‏ - Elsevier
Using non-equilibrium molecular simulations, we systematically elaborate the relationships
among synthesis (membrane's thickness and morphology), atomic-scale transport …

Optimal design strategy, heuristics, and theoretical analysis of multi-stage reverse osmosis for seawater desalination

Y Kim, YG Park, K Park - Desalination, 2024‏ - Elsevier
The RO process cannot be operated in a thermodynamically ideal state, and in general,
additional pressure is required. In addition, multi-stage RO involves an increased number of …

Demystifying the compaction effects of TFC polyamide membranes in the desalination of hypersaline brine via high-pressure RO

YJ Lim, N Nadzri, GS Lai, R Wang - Journal of Membrane Science, 2024‏ - Elsevier
High-pressure reverse osmosis (HPRO) holds promise as a technology for the energy-
efficient desalination of hypersaline brine (≥ 70 g/L total dissolved solids). In this work, we …

Dual brine concentration for the beneficial use of two concentrate streams from desalination plant-concept proposal and pilot plant demonstration

AS Al-Amoudi, S Ihm, AM Farooque, ESB Al-Waznani… - Desalination, 2023‏ - Elsevier
A dual brine concentration concept is proposed and proved in a pilot plant demonstration
with commercial membranes. To utilize the dissolved ions in seawater (45,000 mg/L) …

Optimizing electrocoagulation pre-treatment efficiency during simultaneous treatment of different produced water streams in a FO-MD hybrid system

MS Nawaz, A Alqulayti, VMT Serrano… - Separation and …, 2024‏ - Elsevier
In this study, the electrocoagulation (EC) process was explored and optimized for the pre-
treatment of key contaminants present in hyper-saline produced water (PW) streams before …

Towards sustainable management of end-of-life membranes: novel transformation of end of life (EoL) reverse osmosis membranes for efficient dye/salt separation

A Alkhouzaam, M Khraisheh - Desalination, 2024‏ - Elsevier
Effective management of end-of-life (EoL) membranes is crucial for addressing
environmental and economic concerns. A novel approach has been proposed in this study …

Effect of different manufacturing methods on polyamide reverse-osmosis membranes for desalination: Insights from molecular dynamics simulations

J He, JR McCutcheon, Y Li - Desalination, 2023‏ - Elsevier
Membranes are a key technology platform for a broad application of energy-efficient
separations. To best serve the separation demands of industry, the manufacturing processes …

What will it take to get to 250,000 ppm brine concentration via ultra-high pressure reverse osmosis? And is it worth it?

A Anvari, J Wu, A Edalat, N Voutchkov, A Al-Ahmoudi… - Desalination, 2024‏ - Elsevier
The possibility of ultra-high pressure reverse osmosis (UHPRO) to replace thermal brine
concentration promises to reduce up to 50% of both energy consumption and capital cost …