Boric acid recovery from wastewater by chromatographic separation and mathematical modeling

dc.contributor.authorKole, Zehra
dc.contributor.authorOcal, Zehra Betul
dc.contributor.authorOmwene, Philip Isaac
dc.contributor.authorSoydemir, Gulfem
dc.contributor.authorKeskinler, Bulent
dc.contributor.authorKaragunduz, Ahmet
dc.date.accessioned2024-07-03T13:48:50Z
dc.date.available2024-07-03T13:48:50Z
dc.date.issued2024-03-04
dc.description.abstractThe new approaches in industrial wastewater management underscores the importance of reclaiming valuable materials. Within the boron industry, the generation of substantial wastewater containing preliminary boron species is a significant concern. This study focuses on recovering boric acid from boron production wastewater, addressing the challenge of separating impurities like sulfate, calcium, and magnesium. The methodology adopts chromatographic separation using a cation exchange resin in two forms: (1) Finex CS10GC cation exchanger in Na+ form and (2) Finex CS10GC cation exchanger in Ca2+/Mg2+ form. Notably, the Finex CS10GC ion exchanger in Na+ form achieves a separation efficiency of 95.5 % at a flow rate of 5 mL/min with a 0.20 bed volume (BV) loading. In contrast, the Ca2+/Mg2+ loaded resin achieves a separation efficiency of 23.3 % at the same flow rate. As the boron loading rate decreases to 10 %, the separation efficiency increases to 42.6 %. The flow rate also plays a crucial role, as an increase corresponds to a decrease in separation efficiency. Notably, the Finex CS10GC ion exchanger in Na+ form consistently exhibits superior separation efficiency and band resolution. A mathematical model is introduced to simulate the effective separation of boric acid from other impurities. The quality of the recovered boric acid conforms to the standard grade (Merck KGaA), exhibiting a purity level within the range of 99.5–100 %, suggesting substantial economic value. The proposed recovery process contributes significantly to environmental preservation by mitigating waste discharge, exemplifying a noteworthy commitment to resource conservation.en_US
dc.identifier.citationKole, Z., Ocal, Z. B., Omwene, P. I., Soydemir, G., Keskinler, B., & Karagunduz, A. (2024). Boric acid recovery from wastewater by chromatographic separation and mathematical modeling. Journal of Cleaner Production, 448, 141633.en_US
dc.identifier.issn1879-1786
dc.identifier.issn1879-1786
dc.identifier.urihttps://dir.muni.ac.ug/handle/20.500.12260/652
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectBoron recoveryen_US
dc.subjectIon exchangeen_US
dc.subjectChromatographic separationen_US
dc.subjectModelingen_US
dc.subjectWastewater treatmenten_US
dc.subjectWastewater reuseen_US
dc.titleBoric acid recovery from wastewater by chromatographic separation and mathematical modelingen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Omwene_Article_2024_1-.pdf
Size:
884.12 KB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: