Brackish Water Desalination by Electrodialysis: CaCO3 Scaling Monitoring During Batch Recirculation Operation

Sayadi, Ilhem Ben Salah; Sistat, Philippe; Amor, Mohamed Ben; Mohamed, Tlili

doi:10.1515/ijcre-2013-0082

Cited by 6 publications

(3 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Turek et al developed a model to predict the formation of mineral scale by computing the saturation level of divalent cations in the concentrate compartment of an ED cell . Precipitation of minerals also depends on the pH and temperature of the electrolyte. ,,, For example, a basic electrolyte is concentrated in OH – , which reacts with Ca 2+ and Mg 2+ as follows: …”

Section: Electrokinetic Separationsmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Methods for Water Purification, Ion Separations, and Energy Conversion

et al. 2022

View full text Add to dashboard Cite

Agricultural development, extensive industrialization, and rapid growth of the global population have inadvertently been accompanied by environmental pollution. Water pollution is exacerbated by the decreasing ability of traditional treatment methods to comply with tightening environmental standards. This review provides a comprehensive description of the principles and applications of electrochemical methods for water purification, ion separations, and energy conversion. Electrochemical methods have attractive features such as compact size, chemical selectivity, broad applicability, and reduced generation of secondary waste. Perhaps the greatest advantage of electrochemical methods, however, is that they remove contaminants directly from the water, while other technologies extract the water from the contaminants, which enables efficient removal of trace pollutants. The review begins with an overview of conventional electrochemical methods, which drive chemical or physical transformations via Faradaic reactions at electrodes, and proceeds to a detailed examination of the two primary mechanisms by which contaminants are separated in nondestructive electrochemical processes, namely electrokinetics and electrosorption. In these sections, special attention is given to emerging methods, such as shock electrodialysis and Faradaic electrosorption. Given the importance of generating clean, renewable energy, which may sometimes be combined with water purification, the review also discusses inverse methods of electrochemical energy conversion based on reverse electrosorption, electrowetting, and electrokinetic phenomena. The review concludes with a discussion of technology comparisons, remaining challenges, and potential innovations for the field such as process intensification and technoeconomic optimization.

show abstract

Section: Electrokinetic Separationsmentioning

confidence: 99%

“…605 Precipitation of minerals also depends on the pH and temperature of the electrolyte. 418,604,606,607 For example, a basic electrolyte is concentrated in OH − , which reacts with Ca 2+ and Mg 2+ as follows: 418 Mg (aq) 2OH (aq) Mg(OH) (s) 2 2…”

Section: Fouling In Electrokinetic Systemsmentioning

confidence: 99%

Electrochemical Methods for Water Purification, Ion Separations, and Energy Conversion

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The flowrate of electrode rinse solution was fixed at 100 L h −1 for all experiments. However, the flowrates of other solutions (dilute and concentrate) were only fixed at the beginning of experiment in order to detect any precipitation formation (Ben Salah Sayadi et al 2013). Before the onset of the desalination test, the same solution was introduced in dilute and concentrate compartments.…”

Section: Methodsmentioning

confidence: 99%

Desalination and Defluoridation of Tap Water by Electrodialysis

et al. 2015

Self Cite

View full text Add to dashboard Cite

The water resources in Tunisia are very limited and not fairly distributed: 80 % of them are located in the north and only 20 % in the south. In addition, 50 % of them are characterized by a bad quality since they have salinity greater than 1.5 g L −1. The bad quality is not only due to the high salinity, but also to the presence of natural pollutants such as fluoride. In fact, according to physicochemical analyses of samples of tap waters collected by the Regional Service of Environmental Health from different monitoring sites in mining area (south of Tunisia), in February 2014, it was shown that waters were contaminated by fluoride and contained high concentrations of sulphate and chloride anions. Fluoride concentrations varied between 0.8 and 4 mg L −1 , and then, greatly exceeded the World Health Organization (WHO) standards in some monitoring sites. In this study, the electrodialysis (ED) technique was applied to remove fluoride from these waters. Experiments were carried out using a pilot unit as a conventional ED in batch recirculation mode. It was shown that ED is an efficient technique to remove fluoride and to reduce salinity of water. Removal rate of fluoride tended to 92 % and the concentrations of different species in the treated water were below the amounts recommended by WHO for drinking water. Considering the effect of chloride and sulphate on fluoride removal through the anion exchange membrane, the performance of two types of ion exchange membrane (PC Cell and Neosepta) was compared. Experiments were carried out with synthetic solutions containing 0.0357 mol L −1 of NaHCO 3 doped with 15 mg L −1 of fluoride. Sodium hydrogenocarbonate was replaced by sodium chloride or sodium

show abstract

Inorganic trace contaminant removal from real brackish groundwater using electrodialysis

Onorato

Banasiak

Schäfer

2017

Separation and Purification Technology

View full text Add to dashboard Cite

Brackish Water Desalination by Electrodialysis: CaCO3 Scaling Monitoring During Batch Recirculation Operation

Cited by 6 publications

References 36 publications

Electrochemical Methods for Water Purification, Ion Separations, and Energy Conversion

Electrochemical Methods for Water Purification, Ion Separations, and Energy Conversion

Desalination and Defluoridation of Tap Water by Electrodialysis

Inorganic trace contaminant removal from real brackish groundwater using electrodialysis

Contact Info

Product

Resources

About