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Brine elimination by hybridization of a novel brine-recycle bubble-column humidification-dehumidification system with a multiple-effect distillation system
, Article Energy Conversion and Management ; Volume 217 , 2020 ; Moosavi, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Over the past decades, drastic growth in the installed capacity of seawater desalination systems has increased the energy consumption and brine discharge to the environment. However, using renewable energies and zero liquid discharge systems for minimizing these challenges is limited due to the higher fresh water cost of the systems rather than that of the conventional systems. In this research, a bubble-column humidification-dehumidification zero liquid discharge system is coupled with a multiple-effect distillation/vapor compression system in a novel way to overcome the high water cost of conventional zero liquid discharge systems. Further, the base system and the solar-powered system is...
Energy, exergy, exergoeconomics, and exergoenvironmental assessment of three brine recycle humidification-dehumidification desalination systems applicable for industrial wastewater treatment
, Article Energy Conversion and Management ; Volume 205 , 2020 ; Moosavi, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Using zero liquid discharge systems is one of the efficient methods to reduce the negative environmental impact of the brines of the desalination systems and also to recycle the industrial wastewaters for reuse. Due to the simple fabrication process, low maintenance cost, intensive to inlet water quality, and the ability to use renewable and low-grade-heat, modified humidification-dehumidification systems may be a proper choice for the zero liquid discharge applications. Thus, in the present study, the energy, exergy, exergoeconomic, and exergoenvironmental assessment of three advanced brine recycle humidification-dehumidification systems for zero liquid discharge operation are...
On comparison of three multi-feed osmotic-mediation-based configurations for brine management: Techno-economic optimization and exergy analysis
, Article Desalination ; Volume 525 , 2022 ; 00119164 (ISSN) ; Ghofrani, I ; Moosavi, A ; Sharif University of Technology
Elsevier B.V
2022
Abstract
This study aims at analyzing the performance of three units known as low salt rejection reverse osmosis (LSRRO), split-feed counterflow reverse osmosis (SF-CFRO), and split-brine counterflow reverse osmosis (SB-CFRO) and implementing them in a modified multi-stage multi-feed counter-current membrane with cascade recycle for dewatering hypersaline streams to the salinity appropriate for crystallizers' feed. Exergy and primitive pinch analysis showed that dewatering is limited in SF-CFRO as the permeate inlet dictates the maximum salinity difference at the pinch point as well as high frictional pressure loss in the permeate channel. SB-CFRO and LSRRO units can reach high salinities by...
Design of a Desalination System with High Recovery Using Membrane Based Systems
, M.Sc. Thesis Sharif University of Technology ; Mousavi, Ali (Supervisor) ; Nouri Borujerdi, Ali (Supervisor)
Abstract
Osmotically assisted reverse osmosis (OARO) assimilates high efficiency due to non-thermal processes and accessing high salinity. This makes it suitable for high water recovery for the purpose of zero- and minimal liquid discharge desalination. Moreover, forward osmosis (FO) has low fouling efficiency which makes the operating costs of cleaning and replacement lower. This study aims at incorporating OARO and FO in a novel configuration with multiple inlet of the diluted draw solution to the regeneration section. Pinch analysis with simplifying assumptions was carried out for FO and OARO standalone stages. The results showed that pinch point in FO resides either on the beginning or at the end...
Reducing the Environmental Impact of Waste Brine from Desalination Plant
, M.Sc. Thesis Sharif University of Technology ; Farhadi, Fatollah (Supervisor) ; Mousavi, Abbas (Supervisor)
Abstract
Water is essential for human life and other organisms. Increasing population and consequent increase in water consumption has made freshwater scarcity a global problem. Desalination of saline water sources is a long-term solution to this problem. One of the most challenging issues in desalination is the management and disposal of brine. Disposal of brine into the sea and surface waters is the primary solution for brine management. Due to the environmental problems caused by the discharge of brine into the sea and surface waters, the concept of zero liquid discharge has recently been considered. In this research, an economic study of reverse osmosis-electrodialysis-crystallization structure...
Thermodynamic and Economic Study of the Performance Improvement of Hybrid Desalination Plants
, Ph.D. Dissertation Sharif University of Technology ; Mousavi, Ali (Supervisor)
Abstract
In the present study, for cost-effective brine elimination of desalination plants, a hybrid system consisting of a multiple-effect distillation unit and a humidification-dehumidification unit is proposed. The development process of the hybrid system was carried out in two main steps: 1) evaluation of electricity-driven and heat-driven humidification-dehumidification brine concentrators 2) redesigning the humidification-dehumidification unit according to the results of step one and hybridization the unit with a multiple-effect distillation system. All the steps are assessed using the energy, exergy, exergoeconomics, and exergoenvironmental tools.Among the three heat-driven and...
Robust and efficient zero liquid discharge design strategy using four novel desalination systems: A comprehensive 4E assessment
, Article Journal of Cleaner Production ; Volume 310 , 2021 ; 09596526 (ISSN) ; Moosavi, A ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Discharging unconventional water sources having a high content of inorganic compounds is extremely destructive to the environment. In this research, four novel semi-open-air and closed-air configurations of brine-recycle humidification-dehumidification (BRHDH) systems with zero liquid discharge (ZLD) approach are presented to treat unconventional waters cost-effectively. Bubble-column humidifiers and dehumidifiers are used to have a low initial expenditure, and system multi-staging is implemented to reduce the operating expense of the configurations. The configurations are evaluated for high saline brine treatment using comprehensive energy, exergy, exergoeconomic, and exergoenvironmental...