Utilization of geothermal water as irrigation water after boron removal by monodisperse nanoporous polymers containing NMDG in sorption–ultrafiltration hybrid process

Samatya, Saba; Köseoğlu, Pelin; Kabay, Nalan; Tuncel, Alï; Yüksel, Mithat

doi:10.1016/j.desal.2015.02.030

Cited by 34 publications

(7 citation statements)

References 29 publications

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“…In addition to the commercial ion exchange resins, boron uptake was studied using NMDG‐based poly(VBC‐co‐DVB) and poly(GMA‐co‐EDM) resins as synthesized by Samatya et al . and Santander et al . The commercially available boron selective resins Diaion ® CRB 03, Diaion ® CRB 05, and Chelest Fiber ® GRY‐HW have been tested by Nishihama et al .…”

Section: Introductionmentioning

confidence: 99%

Deboronation of geothermal water using N-methyl-D-glucamine based chelating resins and a novel fiber adsorbent: batch and column studies

Recepoğlu

Kabay

Yılmaz-Ipek

et al. 2017

J. Chem. Technol. Biotechnol

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BACKGROUND Development of new selective chelating resins and fibers with large capacity, high selectivity and high sorption rate has received great interest particularly for boron removal from water. In this study, batch and column mode tests were performed to evaluate the abilities of boron selective ion exchange resins, Diaion CRB 02 and Diaion CRB 05, as well as a novel chelating fiber Chelest Fiber GRY‐HW for boron removal from geothermal water containing boron concentration of 10–11 mg B L−1. RESULTS Optimum adsorbent amounts were found to be 4.0 g resin L−1 geothermal water for Diaion CRB 02, 6.0 g resin L−1 geothermal water for Diaion CRB 05 and 8.0 g fiber L−1 geothermal water for Chelest Fiber GRY‐HW. The adsorbents exhibited promising adsorption capacity and their adsorption data for boron agreed well with both Langmuir and Freundlich models. It was found that the sorption kinetics was influenced by particle size of the adsorbents. The rate‐determining step for boron separation from geothermal water was found to be particle diffusion. According to the results of the column‐mode study, Diaion CRB 05 had a breakthrough capacity of 3.74 mg B mL−1 resin, whereas Chelest Fiber GRY‐HW and Diaion CRB 02 had a breakthrough capacity of 2.16 mg B mL−1 fiber and 1.66 mg B mL−1 resin, respectively. CONCLUSIONS These results showed that boron selective chelating resins along with novel chelating fiber could be employed as efficient adsorbents to decrease boron concentration in geothermal water below the permissible level for irrigation water (<1.0 mg L−1). © 2017 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Deboronation of geothermal water using N-methyl-D-glucamine based chelating resins and a novel fiber adsorbent: batch and column studies

Recepoğlu

Kabay

Yılmaz-Ipek

et al. 2017

J. Chem. Technol. Biotechnol

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“…Nevertheless, its treatment for irrigation is comparatively new in agriculture. The utilization of geothermal water as brackish water has taken excessive attention recently [2][3][4][5][6]. The mineral content of those resources may vary widely from 1 g/L up to 200 g/L, which limits their direct use [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of feed water composition and pretreatment on the irrigation water for boron-sensitive crops

Güler¹

2021

Journal of Boron

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The membrane filtration is an effective way to produce water for human consumption, industrial use, or irrigation purpose. In this study, a brackish water reverse osmosis (BWRO) membrane was practically investigated to obtain irrigation water from geothermal water. The quality of the produced water was analyzed to understand the potential in agricultural use for boron-sensitive crops. The effects of the feed solution composition and pretreatment by microfiltration were studied. Results showed that the ionic content was effective in reduction of permeate flux. However, the rejections of salt and silica did not change significantly by the change in the feed water composition and they were successfully removed from the geothermal water by more than 95% rejection. Pretreatment of the geothermal water with a microfiltration (MF) membrane having a pore-size of 0.8 µm provided higher flux than the one having a pore size of 5 µm. The higher rejections of boron were only achieved with increased pH in the pretreatment. The pH of 9.5 in the geothermal water provided a rejection of boron as 75% with a permeate boron concentration of 2.4 mg/L when 15 bar of operating pressure was employed. This level of boron concentration in the irrigation water was found to be allowable only for some boron resistant crops (e.g. beans, lettuce, onion) and semi-sensitive crops (e.g. sunflower, potato, tomato).

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“…Different separation methods may be applied on the basis of the boron concentration in the medium. Many separation technologies have been applied in its removal from aqueous solutions, including adsorption, reverse osmosis, ion exchange, electrocoagulation, chemical coagulation, and a hybrid process. − At very low boron concentrations, adsorption is an extremely effective way to remove it from aqueous solutions. Different sorbents are utilized in adsorption processes, including activated carbon, fly ash, clays, natural minerals, biological materials, oxides, mesoporous silica, nanoparticles, complexing membranes, and selective resin. − …”

Section: Introductionmentioning

confidence: 99%

Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides

Heredia

García-Soto

Sierra

et al. 2019

Ind. Eng. Chem. Res.

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The boron removal capacity from an aqueous solution using MgAlFe mixed oxides from layered double hydroxides (LDH) was studied. They were synthesized by the coprecipitation method at 70 °C and were characterized as potential filter materials. The Fe3+ analyzed by X-ray photoelectron spectroscopy and UV–visible diffuse reflectance showed their tetrahedral and octahedral coordination. Scanning electron microscopy micrographs and thermogravimetric and differential scanning calorimetry analysis evidenced the presence of clusters and particles aggregates and decreased dehydroxylation temperature when the iron content increased. Mixed oxides and boron solution in a ratio of 20:1 Mg/B were put in a batch reactor at different contact times. The borate removal process was due to the memory effect of the mixed oxides and superficial adsorption by electrostatic attraction. This fact is directly related to the specific surface area, Fe content, and surface charge. The maximum boron removals were achieved with the CS25 and CS50 samples with values higher than 85%.

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Utilization of geothermal water as irrigation water after boron removal by monodisperse nanoporous polymers containing NMDG in sorption–ultrafiltration hybrid process

Cited by 34 publications

References 29 publications

Deboronation of geothermal water using N-methyl-D-glucamine based chelating resins and a novel fiber adsorbent: batch and column studies

Deboronation of geothermal water using N-methyl-D-glucamine based chelating resins and a novel fiber adsorbent: batch and column studies

Effect of feed water composition and pretreatment on the irrigation water for boron-sensitive crops

Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides

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