Removal of boron from aqueous solutions by continuous polymer-enhanced ultrafiltration with polyvinyl alcohol

Dilek, Çerağ; Özbelge, H. Önder; Bıçak, Niyazi; Yılmaz, Levent

doi:10.1081/ss-120002610

Cited by 74 publications

(60 citation statements)

References 37 publications

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“…However, boric acid is also an important industrial resource and is widely used in a wide variety of manufacturing processes such as in semiconductor, ceramic, and plating industries. An effective removal technique is needed because the wastewater generated in these industrial processes produces several hundreds to several thousands mg/dm 3 of boron in a day.…”

Section: )3)mentioning

confidence: 99%

“…Recently, the Japanese quality standard for discharged wastewater containing boron was set at 10 mg/dm 3 (230 mg/dm 3 if discharged into the sea). However, boric acid is also an important industrial resource and is widely used in a wide variety of manufacturing processes such as in semiconductor, ceramic, and plating industries.…”

Section: )3)mentioning

confidence: 99%

“…However, an excessive intake of boron has a detrimental impact on plants, animals, and human bodies. For example, the tolerable limit of boron for citrus and some agricultural crops is 2 or 3 mg/dm 3 . Thus, the World Health Organization has recommended a limit on the amount of boron in drinking water of 0.3 mg/dm 3 in the European Union.…”

Section: Introductionmentioning

confidence: 99%

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Continuous-flow detoxification treatment of boron-containing wastewater under hydrothermal conditions

Sasai

Matsumoto

Itakura

2011

J. Ceram. Soc. Japan

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To develop a practical method of treating boron-containing wastewater, we custom designed two laboratory-scale continuousflow-type hydrothermal mineralization apparatuses. We carried out a hydrothermal treatment using a continuous-flow apparatus, using Ca(OH) 2 , CaCl 2 , and both Ca(OH) 2 and CaCl 2 as mineralizers, under various pH conditions. Our results show that using CaCl 2 under optimal pH conditions (pH = approximately 12) allowed for the stable removal of boron from wastewater. One of the precipitates obtained in this process was parasibirskite, which is a natural boron mineral. Finally, because the residual concentration of boron could not be reduced below 10 mg/dm 3 , we propose a realistic boron removal wastewater treatment system incorporating the hydrothermal mineralization method.

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Section: )3)mentioning

confidence: 99%

Section: )3)mentioning

confidence: 99%

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Continuous-flow detoxification treatment of boron-containing wastewater under hydrothermal conditions

Sasai

Matsumoto

Itakura

2011

J. Ceram. Soc. Japan

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“…Its uses as a preservative and fire retardant are increasing and, as a result, it is found in increasing concentrations in rivers and other surface waters which are used as a supply of drinking water (Simonnot et al, 2000). The World Health Organisation has set a maximum recommended level of boron of 300 ppb in drinking water (WHO, 1998) and conventional water treatment technology is not very effective at removing boron (Dilek et al, 2002). Even low-pressure reverse osmosis membranes, developed for potable water production from surface waters, have only limited boron removal capability (Nadav, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…There have been several studies for the removal of boron from geothermal power plant feed water (Badruk et. al.,1999b) and for water purification (Boncukcuoğlu et al 2004;Dilek et al 2002). …”

Section: Introductionmentioning

confidence: 99%