Feasibility of Increasing Water Recovery of Inland Reverse Osmosis Systems and the Use of Reject Brine

Abedi, Mahsa; Hashemi, Seyed Hossein; Fazeli, Mohammad Sadegh

doi:10.1007/s13369-021-06451-4

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…This deficiency in salt removal may be related mainly to the quality and time of use of semipermeable membranes since they are mainly responsible for removing salts from water in reverse osmosis desalination (ABEDI et al, 2022;LEON et al, 2021). The absence or low frequency of maintenance and service poor quality may also be related to the low efficiency of the systems and, consequently, the low quality of the water produced by these systems.…”

Section: Resultsmentioning

confidence: 99%

Desalter Efficiency in Removing Salts From Brackish Water in Pernambuco's Semi-Arid Region

Lessa da Silva,

Silva,

Ribeiro de Holanda

et al. 2023

MIX Sustent

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Water scarcity is a problem in remote locations. The desalination of brackish underground sources through reverse osmosis (RO) is a solution for producing drinking water to meet the needs of the diffuse population. Therefore, the aim was to investigate the quality of desalinated water offered to the population of the municipalities of Cumaru and Riacho das Almas, located in Pernambuco's semi-arid region, through the amount of total dissolved solids (TDS) and electrical conductivity (EC). To this end, visits were made, and permeate and concentrated well water were collected from communities with desalination systems installed and in full use. The results show that 85% of the operating systems in these municipalities have salt removal efficiencies greater than 80%. It was also found that there is no specific minimum salt removal efficiency to achieve the potability of brackish water since the TDS concentrations of brackish sources vary. Thus, desalination systems that use the RO technique for salt removal are efficient for treating brackish water from artesian wells, provided that the equipment has periodic maintenance and presents good operating conditions.

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Section: Resultsmentioning

confidence: 99%

Desalter Efficiency in Removing Salts From Brackish Water in Pernambuco's Semi-Arid Region

Lessa da Silva,

Silva,

Ribeiro de Holanda

et al. 2023

MIX Sustent

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Different Configuration Comparisons for Seawater Desalination Systems: Performance Analyses

Shahgholian,

Taheri,

Jahangiri

et al. 2024

Journal of Engineering

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This study simulates an RO system for seawater desalination to overcome Iran’s water crisis due to drought and increasing demand. Based on previous studies, a scientific gap has been observed in that the effect of single‐stage or two‐stage systems on performance and effective parameters has not been investigated. In addition, examining the types of arrangements for using pressure vessels will make the present study more comprehensive. SW30XHR‐440i modules are used for desalination and three different feed flow rates (800, 1200, and 1600 m3/day) and three different recovery percentages (40, 55, and 70%) are used for sensitivity analysis. The methodology of the solution includes the examination of different configurations and the solution of the transport equations in the Water Application Value Engine (WAVE) 1.82 software. The configurations without technical errors are selected as the answer for further investigation and comparison with each other. The results show that the lowest specific energy of the pump with the amount of 4.18 kWh/m3 corresponds to the 55% recovery of the two‐stage system (800 m3/day permeate flow rate). As a general result, it can be stated that as the flow rate increases, the advantage of using a 6‐element pressure vessel over an 8‐element pressure vessel becomes more significant. Also, using the two‐stage system instead of single‐stage system is less feasible for higher permeate flows.

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Feasibility of Increasing Water Recovery of Inland Reverse Osmosis Systems and the Use of Reject Brine

Cited by 2 publications

References 31 publications

Desalter Efficiency in Removing Salts From Brackish Water in Pernambuco's Semi-Arid Region

Desalter Efficiency in Removing Salts From Brackish Water in Pernambuco's Semi-Arid Region

Different Configuration Comparisons for Seawater Desalination Systems: Performance Analyses

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