Long term experience with membrane performance at the Larnaca desalination plant

Bartels, Craig; Cioffi, Sandro; Rybar, Stefan; Wilf, Mark; Koutsakos, Erineos

doi:10.1016/j.desal.2007.01.070

Cited by 22 publications

(18 citation statements)

References 2 publications

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“…Reverse osmosis (RO) is a well-developed and the most promising technology for water desalination process [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Since its invention by John Cadotte in 1981 [4], the polyamide (PA) thin film composite (TFC) membrane has become the state-of-the-art RO membrane for water desalination, which predominates the current commercial RO applications [3,4,7,17].…”

Section: Introductionmentioning

confidence: 99%

High-flux and fouling-resistant membranes for brackish water desalination

Zhao

Chang

Yen

et al. 2013

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

High-flux and fouling-resistant membranes for brackish water desalination

Zhao

Chang

Yen

et al. 2013

Journal of Membrane Science

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“…The work leading to this result was carried out over several years and has been described in previous publications [2,5,6].…”

Section: Second Ro Stage Antiscalant Considerationsmentioning

confidence: 78%

“…This has a major added benefit of boron removal in the 1st RO stage. • Introduce a complete system for assessing, cleaning and changing membranes -The Membrane Management System [5,6] • Improve 1st stage performance so that the 2nd RO stage was not required to operate for half of the year • Operate the 2nd stage at much higher pH to improve boron removal and meet the contractual requirements at high sea water temperatures • A maintenance team who can also work as shift operators and vice -versa as part of their monthly normal working schedule…”

Section: The Ldpmentioning

confidence: 99%

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Successful antiscalant field trial — Optimization at higher pH and seawater temperature, Larnaca desalination plant

Koutsakos

Delaisse²,

Wal³

2010

Desalination and Water Treatment

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A B S T R A C TLarnaca Desalination Plant (LDP) has lead the way in operating for a number of years at elevated pH both at the first and second Reverse Osmosis (RO) stages at higher feed sea water temperature up to 30 C. The main reason for the higher pH was to enhance the boron rejection capability of existing membranes and thus reduce the need for a second stage at lower sea water temperatures and subsequently produce more water at less energy. However, higher pH in conjunction with high sea water temperatures create conditions for membrane scaling. Therefore an appropriate cost effective antiscalant has to be used with minimum dosing rate. This article describes field trials of choosing and applying an appropriate antiscalant and dosing optimisation as a function of feed sea water temperature and pH.

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“…Having achieved successfully parts (a) to (c ), this has set the basis for innovative plant operation where the initially installed second-stage operation was not operated for more than 6 months of the year while at the same time continuously producing good-quality EU standard water and also achieving higher water production with less specific energy (kWh/m 3 ). The work, leading up to the achieved results described in this paper, was carried out over several years and has been described in previous publications [4][5][6][7].…”

Section: *Corresponding Authormentioning

confidence: 94%

More water, less energy and reduced CO2 emissions — the Larnaca desalination plant

Koutsakos¹,

Moxey²

2009

Desalination and Water Treatment

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A B S T R A C TAn objective of the Larnaca seawater desalination plant (LDP) was to reduce specific energy consumption while producing the same or more water while maintaining water quality criteria. A critical water quality issue was the removal of boron to levels such as those defined by the WHO. The LDP (a 10-year BOOT project) has been operating since 2001, and has the challenge of meeting a 1 mg/L boron standard. In order to cope with the boron requirement, the plant is designed with a double-stage RO configuration in order to produce boron concentrations consistently below 1 mg/L. Other innovative design features of the LDP are the eight membranes per pressure vessel, permeate from both ends of the pressure vessels and a fully automated operation. As part of a wider plant operation strategy, the plant processes have been optimized and a stable high plant performance was achieved. Further developments such as the membrane management system have improved the performance of the SWRO process and the operation of the first stage at elevated pH further improved the boron rejection of the first SWRO stage such that a second BWRO stage was not required to operate for more than 6 months of the year. Such innovative plant operation and the subsequent energy savings-translated into reduced CO 2 emissions (energy obtained from the national electricity grid) per cubic meter of water produced-has allowed the LDP to win the 2007 National Innovation Industry Prize. This paper describes the changes made and advancements in achieving lower specific plant energy while producing more water and at the same time meeting its quality and all other contractual requirements.

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Long term experience with membrane performance at the Larnaca desalination plant

Cited by 22 publications

References 2 publications

High-flux and fouling-resistant membranes for brackish water desalination

High-flux and fouling-resistant membranes for brackish water desalination

Successful antiscalant field trial — Optimization at higher pH and seawater temperature, Larnaca desalination plant

More water, less energy and reduced CO2 emissions — the Larnaca desalination plant

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