干旱区生态环境知识资源中心(Arid): Long-Term Performance Evaluation and Fouling Characterization of a Full-Scale Brackish Water Reverse Osmosis Desalination Plant

Arid

DOI	10.3390/w16131892
	Long-Term Performance Evaluation and Fouling Characterization of a Full-Scale Brackish Water Reverse Osmosis Desalination Plant
	Chebil, Sabrine; Ruiz-Garcia, A.; Farhat, Soumaya; Bali, Mahmoud
通讯作者	Ruiz-García, A
来源期刊	WATER
EISSN	2073-4441
出版年	2024
卷号	16 期号:13
英文摘要	Water scarcity in Tunisia's semi-arid regions necessitates advanced brackish water desalination solutions. This study evaluates the long-term performance and fouling characteristics of the largest brackish water reverse osmosis desalination plant in southern Tunisia over a period of 5026 days. The plant employs two-stage spiral-wound membrane elements to treat groundwater with a salinity of 3.2 g L-1. The pre-treatment process includes oxidation, sand filtration, and cartridge filtration, along with polyphosphonate antiscalant dosing. Membrane performance was assessed through the analysis of operational data, standardization of permeate flow (Qps) and salt passage (SPs), and the calculation of water (A), solute (B), and ionic (Bj) permeability coefficients. Over the operational period, there was an increase in operating pressure, pressure drop, and permeate conductivity, accompanied by a gradual increase in SPs as well as in the solute B and ionic Bj permeability coefficients. The average B increased by 82%, reflecting a decrease in solute rejection over time. Additionally, the ionic permeability coefficients for both SO42- and Cl- ions increased, with Cl- showing an 88% increase and SO42- showing an 87% increase. The produced water's salinity increased by 67%, indicating a significant loss of membrane performance. To identify the cause of these problems, membrane characterization was analyzed using visual inspection, X-ray fluorescence (XRF), and Fourier transform infrared spectroscopy (FTIR). The characterization revealed the complex nature of the foulants, with a predominant presence of calcium sulfate, along with minor quantities of calcite, dolomite, and silica. The extent of CaSO4 deposition suggests poor antiscaling efficiency, highlighting the critical importance of selecting an effective antiscalant to mitigate membrane fouling.
英文关键词	brackish water desalination reverse osmosis fouling standardization permeability
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001266572100001
WOS关键词	RO MEMBRANE ; SEAWATER DESALINATION ; GROUNDWATER TREATMENT ; MASS-TRANSFER ; GYPSUM ; OPERATION ; AUTOPSY ; NANOFILTRATION ; OPTIMIZATION ; PRETREATMENT
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405878
推荐引用方式 GB/T 7714	Chebil, Sabrine,Ruiz-Garcia, A.,Farhat, Soumaya,et al. Long-Term Performance Evaluation and Fouling Characterization of a Full-Scale Brackish Water Reverse Osmosis Desalination Plant[J],2024,16(13).
APA	Chebil, Sabrine,Ruiz-Garcia, A.,Farhat, Soumaya,&Bali, Mahmoud.(2024).Long-Term Performance Evaluation and Fouling Characterization of a Full-Scale Brackish Water Reverse Osmosis Desalination Plant.WATER,16(13).
MLA	Chebil, Sabrine,et al."Long-Term Performance Evaluation and Fouling Characterization of a Full-Scale Brackish Water Reverse Osmosis Desalination Plant".WATER 16.13(2024).