Removal of boric acid, monoborate and boron complexes with polyols by reverse osmosis membranes

Dydo, Piotr; Turek, Marian; Milewski, Andrzej

doi:10.1016/j.desal.2013.12.001

Cited by 27 publications

(16 citation statements)

References 12 publications

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“…Chemically uncombined boron, which is classed as a metalloid, is found in small amounts in meteoroids, but it is not found naturally on earth. Several desalination studies of boron removal have been reported over the effect of membrane fouling [48], ultrafiltration-reverse osmosis (UF-RO) processes in pilot-scale tests [49], polyvinylidene fluoride (PVDF) flat-sheet membranes [50], reverse osmosis (RO) system [51], complexes with polysol [52], tumor-suppressive effect [53], human brain tumors [54], and using constructed wetlands [55]. Frequently, the high boron concentration in the injection seawater for a desalination process can exceed the standards for drinking water.…”

Section: Boronmentioning

confidence: 99%

Understanding the role of ecological indicator use in assessing the effects of desalination plants

Chang¹

2015

Desalination

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Section: Boronmentioning

confidence: 99%

Understanding the role of ecological indicator use in assessing the effects of desalination plants

Chang¹

2015

Desalination

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“…Boron exists mostly as boric acid in water. Conventional RO technology is not able achieve more than 50% boron rejection; thus, there is a need to improve this technology so that boron content of RO permeates can meet the regulatory standard [215][216][217]. Biomimetics can play an important role in the improvement of this technology because bioinspired membranes have the potential to reject everything except water at a high water permeability rate.…”

Section: Trace Pollutant Removalmentioning

confidence: 99%

Biomimetic membranes: A critical review of recent progress

et al. 2017

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A membrane material that can concurrently provide commercially acceptable levels of water permeability, high salt rejection, and of sufficient stability to withstand mechanical and chemical stresses seems to be necessary to guarantee the energy and environmental sustainability of desalination systems and other membrane separation processes. Recent developments in desalination have shown that bio-inspired membranes are moving steadily in this direction. Sustainable desalination via aquaporin-based bio-inspired membranes is elucidated in this paper in terms of recent commercialization exploitation and progress towards real operations. Current large-scale applications, viable opportunities, remaining challenges and sustainability of operations, in terms of comparison with established technologies, are discussed in this paper. The major drawback of aquaporin-based membranes, which has been highlighted repeatedly in recent studies, is the stability of the membranes during real operations. This review is focused on recent solutions provided by scientists towards the mitigation of these problems and commercialization of aquaporin-based membranes.

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“…Methods based on ion exchange and adsorption processes are usually suitable for waters with low boron concentration [22,23]. Reverse osmosis has been extensively tested in desalination [23,24]. The precipitation methods are instead used in aqueous solutions with higher boron content [24].…”

Section: Introductionmentioning

confidence: 99%

High Content of Boron in Curative Water: From the Spa to Industrial Recovery of Borates? (Poland as a Case Study)

et al. 2020

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Boron minerals are a sought-after raw material. The European Union’s total dependence on imported borates means that this has been a critical material since 2014. Due to the increased use of borates in modern economies, data on the predicted boron demand in the coming years indicate that it may become a critical element on a global scale. Formerly, the high boron content in groundwater was the basis for qualifying it as medicinal water (boric water). Nevertheless, the current information on the potential toxicity of boron and the narrow margin between deficiency and toxicity of boron in the human body has caused a tightening of the limits of this element in water intended for human consumption. For this reason, metaboric acid has lost its position as a specific component of curative waters. However, despite the fact that boron is not currently a specific component of curative waters, it is found in measureable concentrations in Polish medicinal water considered therapeutic based on other valuable specific components. High boron content in curative water may be the cause of the problems in some spas when obtaining certificates confirming the therapeutic properties of waters. Literature data indicate that waters with high boron content (above 25 mg/L) should not be freely available for drinking in pump rooms and other places in health resorts. To identify the situation with Polish health resorts, the content of boron in 248 curative water samples was analyzed. In 154 of these samples, the boron concentration was relatively low and did not exceed 5 mg/L. However, in the remaining 94 samples, the boron content exceeded 5 mg/L, and 38 samples had boron content exceeding 30 mg/L. Ten of the 248 samples of curative water had a boron concentration above 100 mg/L, which may be a potential source of boron for industrial recovery. The highest concentration of boron was noticed in a water sample from the Wysowa health resort and was 187.6 mg/L. Unfortunately, most of water intakes with a high concentration of boron (above 100 mg/L) are low-yielding wells. Based on the data collected, Rabka appears to be the best candidate for small-scale boron production in terms of boron content and water resources values.

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Removal of boric acid, monoborate and boron complexes with polyols by reverse osmosis membranes

Cited by 27 publications

References 12 publications

Understanding the role of ecological indicator use in assessing the effects of desalination plants

Understanding the role of ecological indicator use in assessing the effects of desalination plants

Biomimetic membranes: A critical review of recent progress

High Content of Boron in Curative Water: From the Spa to Industrial Recovery of Borates? (Poland as a Case Study)

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