Flocculation studies of natural quartz sample using anionic polyacrilamide
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The waste sludge generated during processing of iron ore in the Omarska mine (Republika Srpska, Bosnia and Herzegovina) is fine-grained (<15μm), containing relatively high concentrations of iron, and quartz as its major impurity. In present paper it was studied the flocculation behaviour of the primary natural raw “quartz” sample from Omarska mine. This sample is composed of major quartz which dominate over minor contents of clay minerals and feldspars, and contain 92.9% of SiO2. Particle size distribution analysis confirm that it is present as fine and ultra-fine particles. The zeta potential of quartz depend on pH value. Settling experiments were performed by using three different dispersants (Na-hexamethaphosphate, Na-pyrophosphate and Na-silicate), and anionic polyacrylamide as flocculants. The best results were achieved with Na-hexametaphosphate (1000 g/t) and anionic polyacrylamide A 100. The effect of flocculant on the settling rate depends on solid concentration. Settling rates... increase significantly with the increase of the liquid component in both of the cases (natural settling and hindered settling by addition of flocculant).
Keywords:
quartz / iron ore / sludge / flocculation / settling ratesSource:
XII International Scientific Conference Contemporary Materials 2019, 2019Publisher:
- Akademija nauka i umjetnosti Republike Srpske
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IHTMTY - CONF AU - Sredić, Svjetlana AU - Tankosić, Ljiljana AU - Tančić, Pavle AU - Nedić, Zoran PY - 2019 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5992 AB - The waste sludge generated during processing of iron ore in the Omarska mine (Republika Srpska, Bosnia and Herzegovina) is fine-grained (<15μm), containing relatively high concentrations of iron, and quartz as its major impurity. In present paper it was studied the flocculation behaviour of the primary natural raw “quartz” sample from Omarska mine. This sample is composed of major quartz which dominate over minor contents of clay minerals and feldspars, and contain 92.9% of SiO2. Particle size distribution analysis confirm that it is present as fine and ultra-fine particles. The zeta potential of quartz depend on pH value. Settling experiments were performed by using three different dispersants (Na-hexamethaphosphate, Na-pyrophosphate and Na-silicate), and anionic polyacrylamide as flocculants. The best results were achieved with Na-hexametaphosphate (1000 g/t) and anionic polyacrylamide A 100. The effect of flocculant on the settling rate depends on solid concentration. Settling rates increase significantly with the increase of the liquid component in both of the cases (natural settling and hindered settling by addition of flocculant). PB - Akademija nauka i umjetnosti Republike Srpske C3 - XII International Scientific Conference Contemporary Materials 2019 T1 - Flocculation studies of natural quartz sample using anionic polyacrilamide UR - https://hdl.handle.net/21.15107/rcub_cer_5992 ER -
@conference{ author = "Sredić, Svjetlana and Tankosić, Ljiljana and Tančić, Pavle and Nedić, Zoran", year = "2019", abstract = "The waste sludge generated during processing of iron ore in the Omarska mine (Republika Srpska, Bosnia and Herzegovina) is fine-grained (<15μm), containing relatively high concentrations of iron, and quartz as its major impurity. In present paper it was studied the flocculation behaviour of the primary natural raw “quartz” sample from Omarska mine. This sample is composed of major quartz which dominate over minor contents of clay minerals and feldspars, and contain 92.9% of SiO2. Particle size distribution analysis confirm that it is present as fine and ultra-fine particles. The zeta potential of quartz depend on pH value. Settling experiments were performed by using three different dispersants (Na-hexamethaphosphate, Na-pyrophosphate and Na-silicate), and anionic polyacrylamide as flocculants. The best results were achieved with Na-hexametaphosphate (1000 g/t) and anionic polyacrylamide A 100. The effect of flocculant on the settling rate depends on solid concentration. Settling rates increase significantly with the increase of the liquid component in both of the cases (natural settling and hindered settling by addition of flocculant).", publisher = "Akademija nauka i umjetnosti Republike Srpske", journal = "XII International Scientific Conference Contemporary Materials 2019", title = "Flocculation studies of natural quartz sample using anionic polyacrilamide", url = "https://hdl.handle.net/21.15107/rcub_cer_5992" }
Sredić, S., Tankosić, L., Tančić, P.,& Nedić, Z.. (2019). Flocculation studies of natural quartz sample using anionic polyacrilamide. in XII International Scientific Conference Contemporary Materials 2019 Akademija nauka i umjetnosti Republike Srpske.. https://hdl.handle.net/21.15107/rcub_cer_5992
Sredić S, Tankosić L, Tančić P, Nedić Z. Flocculation studies of natural quartz sample using anionic polyacrilamide. in XII International Scientific Conference Contemporary Materials 2019. 2019;. https://hdl.handle.net/21.15107/rcub_cer_5992 .
Sredić, Svjetlana, Tankosić, Ljiljana, Tančić, Pavle, Nedić, Zoran, "Flocculation studies of natural quartz sample using anionic polyacrilamide" in XII International Scientific Conference Contemporary Materials 2019 (2019), https://hdl.handle.net/21.15107/rcub_cer_5992 .