Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/112201
Title: Performance Analysis of a Full-Scale Desalination Plant with Reverse Osmosis Membranes for Irrigation
Authors: León Zerpa, Federico Antonio 
Ramos Martín, Alejandro 
UNESCO Clasification: 330806 Regeneración del agua
3308 Ingeniería y tecnología del medio ambiente
Keywords: Seawater
Reverse osmosis membranes
Desalination
Operating data
Long-term
Issue Date: 2021
Project: Mitigación del cambio climático a través de la innovación en el ciclo del agua mediante tecnologías bajas en carbono 
Journal: Membranes 
Abstract: Reverse osmosis (RO) is the most widely used technology for seawater desalination purposes. The long-term operating data of full-scale plants is key to analyse their performance under real conditions. The studied seawater reverse osmosis (SWRO) desalination plant had a production capacity of 5000 m3/d for irrigation purposes. The operating data such as conductivities flows, and pressures were collected for around 27,000 h for 4 years. The plant had sand and cartridge filters without chemical dosing in the pre-treatment stage, a RO system with one stage, 56 pressure vessels, seven RO membrane elements per pressure vessel and a Pelton turbine as energy recovery device. The operating data allowed to calculate the average water and salt permeability coefficients (A and B) of the membrane as well as the specific energy consumption (SEC) along the operating period. The calculation of the average A in long-term operation allowed to fit the parameters of three different models used to predict the mentioned parameter. The results showed a 30% decrease of A, parameter B increase around 70%. The SEC was between 3.75 and 4.25 kWh/m3. The three models fitted quite well to the experimental data with standard deviations between 0.0011 and 0.0015.
URI: http://hdl.handle.net/10553/112201
ISSN: 2077-0375
DOI: 10.3390/membranes11100774
Source: Membranes [e-ISSN 2077-0375], v. 11(10), 774, (Octubre 2021)
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