Concentration of NaCl from seawater reverse osmosis brines for the chlor-alkali industry by electrodialysis

Reig, Mònica; Casas, S.; Aladjem, C.; Valderrama, César; Gibert, Oriol; Valero, Fernando; Centeno, Carlos Miguel; Larrotcha, E.; Cortina, José Luis

doi:10.1016/j.desal.2013.12.021

Cited by 145 publications

(69 citation statements)

References 52 publications

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“…It can be seen that the average energy consumption for concentrating the industrial effluent from about 100 gNa 2 SO 4 /L to 300 gNa 2 SO 4 /L by the experimental plant installed with the homogeneous membrane combination in a batch mode at 35 ± 5 • C can reach 0.17 kwh/kgNa 2 SO 4 , which is approximately equal to that of the concentration of seawater reverse osmosis brine by the industrial ED plant [6,18]. By contrast, the energy consumption of the heterogeneous membrane combination is much higher, which is nearly three times as large as that of homogeneous membrane combination.…”

Section: The Energy Consumptionmentioning

confidence: 94%

“…However, the BMED reclamation scheme for industrial effluent with high salinity still remain in laboratory research or pilot demonstration without successful industrial implementation because of some unsolved practical problems, for examples, relatively high cost of the bipolar membrane and relatively low ability of anion exchange membrane and cation exchange membrane to blocking acid and base. The other is conventional ED process with the desalination-concentration dual-purpose, which usually is coupled with other operations, such as evaporation and electrolysis [6][7]. In view of the maturity of equipment and technology, ED may be preferred for the treatment of concentrated salt effluents.…”

Section: Introductionmentioning

confidence: 99%

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A zero-liquid-discharge scheme for vanadium extraction process by electrodialysis-based technology

Wang

Xing

Jia

et al. 2015

Journal of Hazardous Materials

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Section: The Energy Consumptionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

A zero-liquid-discharge scheme for vanadium extraction process by electrodialysis-based technology

Wang

Xing

Jia

et al. 2015

Journal of Hazardous Materials

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“…(85). To reduce adverse environmental effects of direct brine disposal, it can be diluted with power plant cooling waters, from RO concentrates(98)(99)(100). The cost of concentrate disposal depends on the characteristics of concentrate, level of treatment before disposal, disposal method and brine volume(88,89).…”

mentioning

confidence: 99%

A Review on PV-RO Process: Solution to Drinking Water Scarcity due to High Salinity in Non-Electrified Rural Areas

Garg

Joshi

2014

Separation Science and Technology

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Desalination of brackish groundwater has emerged as a major option to overcome water scarcity, since quantity and quality of surface water is not appropriate for continuously growing water demand of two third of world's population. Photovoltaic (PV) solar energy powered reverse osmosis (RO) system can be the best option in secluded and isolated areas of the world that are suffering from a shortage of electricity energy and drinking water. This technique is likely to be the lowest energy demanding technology among other desalination techniques. Further, adopting measures like energy recovery devices, hybrid pretreatment process and battery-less system reduces overall cost of the system. But, the capital cost of the system is still too high to support this technology competitively in the market. In the present paper, a review of the PV-RO systems employed for drinking water treatment in non-electrified rural areas of developing countries has been provided. The status of development in the last few years, along with the attempts towards finding rational solutions for cost reduction are also summarized.

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“…Desalination is a process that removes dissolved minerals from seawater or brackish water or treated waste water. These processes create more valuable water by converting saline waters into a resource (Reig et al 2014;McGovern et al 2014a;Tanaka et al 2015). Several desalination methods have been developed to obtain fresh drinking water.…”

Section: Introductionmentioning

confidence: 99%

Electrodialytic desalination of brackish water: determination of optimal experimental parameters using full factorial design

et al. 2017

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The aim of this work is to study the desalination of brackish water by electrodialysis (ED). A two levelthree factor (2 3 ) full factorial design methodology was used to investigate the influence of different physicochemical parameters on the demineralization rate (DR) and the specific power consumption (SPC). Statistical design determines factors which have the important effects on ED performance and studies all interactions between the considered parameters. Three significant factors were used including applied potential, salt concentration and flow rate. The experimental results and statistical analysis show that applied potential and salt concentration are the main effect for DR as well as for SPC. The effect of interaction between applied potential and salt concentration was observed for SPC. A maximum value of 82.24% was obtained for DR under optimum conditions and the best value of SPC obtained was 5.64 Wh L -1 . Empirical regression models were also obtained and used to predict the DR and the SPC profiles with satisfactory results. The process was applied for the treatment of real brackish water using the optimal parameters.

show abstract

Concentration of NaCl from seawater reverse osmosis brines for the chlor-alkali industry by electrodialysis

Cited by 145 publications

References 52 publications

A zero-liquid-discharge scheme for vanadium extraction process by electrodialysis-based technology

A zero-liquid-discharge scheme for vanadium extraction process by electrodialysis-based technology

A Review on PV-RO Process: Solution to Drinking Water Scarcity due to High Salinity in Non-Electrified Rural Areas

Electrodialytic desalination of brackish water: determination of optimal experimental parameters using full factorial design

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