Design of a multistage hybrid desalination process for brine management and maximum water recovery

被引:0
作者
Khadije El Kadi
Isam Janajreh
Sufian Abedrabbo
Mohamed Ibrahim Ali
机构
[1] Khalifa University of Science and Technology,Department of Mechanical Engineering
[2] Khalifa University of Science and Technology,Department of Physics
来源
Environmental Science and Pollution Research | 2024年 / 31卷
关键词
Freeze desalination; Brine management; Hybrid desalination; Membrane distillation; Zero liquid discharge; Eutectic freeze crystallization;
D O I
暂无
中图分类号
学科分类号
摘要
Hypersaline brine production from desalination plants causes huge environmental stress due to the untenable conventional discharge strategies. Particularly, brine production is expected to drastically increase in the coming few decades due to the increasing desalination capacity in attempts of forestalling water scarcity. Thereby, zero liquid discharge (ZLD) is a worth-considering solution for strategic brine management. ZLD or minimal liquid discharge (MLD) systems provide maximum water recovery with least or zero liquid waste generation and valuable salt production. In this work, a theoretical design of ZLD/MLD system is proposed for reverse osmosis (RO) brine management. Different scenarios are investigated utilizing multistage freeze desalination (FD) and its hybridization with multistage direct contact membrane distillation (DCMD), and eutectic freeze crystallization (EFC) technologies. The design is based on the experimental assessment of the indirect FD process at different feed salinities, i.e., 2 g/L to 155 g/L. FD experiments showed that ice quality is reduced at greater crystallinity levels and initial concentration. Moreover, a computational fluid dynamics (CFD) model is utilized to assess the performance of DCMD. A single DCMD module could produce 53 kg/(m2.h) of pure water operating with 69% thermal efficiency. Eventually, water recovery, water quality, as well as specific energy consumption (SEC) are evaluated for the whole system. Based on different configurations of the hybrid ZLD system, the proposed design can achieve water recovery between 40 and 93% with SEC range of 28–114 kWh/m3. Results also showed that the produced water quality exceeds drinkable water standards (≪\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\ll$$\end{document} 500 mg/L). This work has provided great evidence in the practicality of ZLD/MLD systems for sustainable brine management.
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页码:17565 / 17577
页数:12
相关论文
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  • [1] Bouchrit R(2017)Membrane crystallization for mineral recovery from saline solution: Study case Na2SO4 crystals Desalination 412 1-12
  • [2] Boubakri A(2009)Theoretical modeling and experimental analysis of direct contact membrane distillation J Membr Sci 330 279-287
  • [3] Mosbahi T(2014)Optimization of operating conditions for a continuous membrane distillation crystallization process with zero salty water discharge J Membr Sci 450 1-11
  • [4] Hafiane A(2013)Integrated membrane distillation–crystallization: process design and cost estimations for seawater treatment and fluxes of single salt solutions Desalination 323 8-16
  • [5] Bouguecha SAT(2022)Towards sustainable production of minerals and chemicals through seawater brine treatment using eutectic freeze crystallization and electrodialysis with bipolar membranes J Clean Prod 368 133143-110
  • [6] Chen TC(2017)Desalination by freeze crystallization: an overview Int J Thermal Environ Eng 15 103-388
  • [7] Ho CD(2020)Comparison of different mass transfer models for direct contact membrane distillation flux evaluation Desalin Water Treat 194 379-39951
  • [8] Yeh HM(2021)Application of directional freezing for seawater desalination: parametric analysis using experimental and computational methods Desalination 520 115339-393
  • [9] Chen G(2021)Investigating sustainable management of desalination brine through concentration using forward osmosis Environ Sci Pollut Res 28 39938-130
  • [10] Lu Y(2005)Impact of desalination plants fluid effluents on the integrity of seawater, with the Arabian Gulf in perspective Desalination 182 373-2073