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Techno-Economic Assessment (TEA) of a Minimal Liquid Discharge (MLD) Membrane-Based System for the Treatment of Desalination Brine
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Techno-Economic Assessment (TEA) of a Minimal Liquid Discharge (MLD) Membrane-Based System for the Treatment of Desalination Brine
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Journal Article
Techno-Economic Assessment (TEA) of a Minimal Liquid Discharge (MLD) Membrane-Based System for the Treatment of Desalination Brine
2025
Overview
Desalination plays a critical role in addressing global water scarcity, yet brine disposal remains a significant environmental challenge. This study evaluates a minimal liquid discharge (MLD) membrane-based system integrating high-pressure reverse osmosis (HPRO) and membrane distillation (MD) for brine treatment, with a focus on the Eastern Mediterranean. A techno-economic assessment (TEA) was conducted to analyze the system’s feasibility, water recovery performance, energy consumption, and cost-effectiveness. The results indicate that the hybrid HPRO-MD system achieves a high water recovery rate of 78.65%, with 39.65 m3/day recovered from MD and 39 m3/day from HPRO. The specific energy consumption is 23.2 kWh/m3, with MD accounting for 89% of the demand. The system’s cost is USD 0.99/m3, generating daily revenues of USD 228 in Cyprus and USD 157 in Greece. Compared to conventional brine disposal methods, MLD proves more cost-effective, particularly when considering evaporation ponds. While MLD offers a sustainable alternative for brine management, challenges remain regarding energy consumption and the disposal of concentrated waste streams. Future research should focus on renewable energy integration, advanced membrane technologies, and resource recovery through brine mining. The findings highlight the HPRO-MD MLD system as a promising approach for sustainable desalination and circular water resource management.
Publisher
MDPI AG
Subject
