Assessment of the influence of aqueous solutions chemistry on the water absorbency of recycled superabsorbent polymers
Lotiye Elisee Poudama, Shyaka Auguste Rwamurinda, Mamert Mbonimpa, Tikou Belem, Abdelkabir Maqsoud, Khadija El Mahboub, Cyrille Ngandu Kabamba, Nor el-hoda Addi, Jean-Francois Lemay
In the proceedings of: GeoSt. John's 2019: 72nd Canadian Geotechnical ConferenceSession: Mining
ABSTRACT: This study aims at understanding the effect of water chemistry on the absorbency of superabsorbent polymers (SAP) that can be used for densification of tailings slurries. For this purpose, the absorbency of recycled SAP from unused hygienic diapers was determined for different aqueous solutions by varying their sulphates and salts concentrations and their pH. A SAP dosage of 4 g/L was mainly used. Experimental results obtained 72 hours after the SAP addition into the solutions showed that the absorption rate is at its maximum in deionized water. However, the addition of cations from salts in the solution has shown a drastic reduction in the SAP’s absorption rate. The ensuing pH of the solution showed that the acidity had an inhibitory effect on the SAP’s absorption rate.
Please include this code when submitting a data update: GEO2019_451
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Poudama, Lotiye Elisee, Rwamurinda, Shyaka Auguste, Mbonimpa, Mamert, Belem, Tikou, Maqsoud, Abdelkabir, Mahboub, Khadija El, Kabamba, Cyrille Ngandu, Addi, Nor el-hoda, Lemay, Jean-Francois (2019) Assessment of the influence of aqueous solutions chemistry on the water absorbency of recycled superabsorbent polymers in GEO2019. Ottawa, Ontario: Canadian Geotechnical Society.
@article{Poudama_GEO2019_451,
author = Lotiye Elisee Poudama, Shyaka Auguste Rwamurinda, Mamert Mbonimpa, Tikou Belem, Abdelkabir Maqsoud, Khadija El Mahboub, Cyrille Ngandu Kabamba, Nor el-hoda Addi, Jean-Francois Lemay,
title = Assessment of the influence of aqueous solutions chemistry on the water absorbency of recycled superabsorbent polymers ,
year = 2019
}
title = Assessment of the influence of aqueous solutions chemistry on the water absorbency of recycled superabsorbent polymers ,
year = 2019
}