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Photochemical Origins of Iron Flocculation in Acid Mine Drainage
Environmental Science & TechnologyAcid mine drainage (AMD) raises a global environmental concern impacting the iron cycle. Although the formation of Fe(III) minerals in AMD-impacted waters has previously been reported to be regulated by biological processes, the role of abiotic processes remains largely unknown.
Huanxin Ma +9 more
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Effect of montmorillonite on the selective flocculation of iron ores
Mining, Metallurgy & Exploration, 1986Clay minerals adversely affect the selective flocculation of iron ores. The effect of montmorillonite on a hematite-quartz mixture was studied. Montmorillonite, particularly in the presence of Ca++, caused indiscriminate dispersion of the pulp. Three possible mechanisms were postulated, namely, card-house structure formation, adsorption of dissolved ...
A. I. Arol, I. Iwasaki
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Characterization and Beneficiation of Iron Ore Tailings by Selective Flocculation
Transactions of the Indian Institute of Metals, 2015In the present paper, an attempt has been made to beneficiate iron ore tailings by selective flocculation using guar gum and starch as flocculants along with sodium hexametaphosphate (SHMP) as the dispersant. The mineralogical studies carried out initially indicated the presence of hematite and goethite as major iron bearing mineral phases along with ...
Rakesh Kumar, N. R. Mandre
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European Polymer Journal, 2001
The flocculation characteristics of sodium alginate-g-polyacrylamide (grade VI) SAG-VI developed in authors’ laboratory was compared with some commercially available flocculants in aqueous suspensions of 0.5 wt.% iron ore slimes. Two varieties of iron ore slimes were taken, one is denser than other, for comparison.
Tridib Tripathy, R.P Bhagat, R.P Singh
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The flocculation characteristics of sodium alginate-g-polyacrylamide (grade VI) SAG-VI developed in authors’ laboratory was compared with some commercially available flocculants in aqueous suspensions of 0.5 wt.% iron ore slimes. Two varieties of iron ore slimes were taken, one is denser than other, for comparison.
Tridib Tripathy, R.P Bhagat, R.P Singh
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Enhanced recovery of low-grade iron ore by selective flocculation method
Journal of Dispersion Science and Technology, 2017ABSTRACTBeneficiation of low-grade iron ore was carried out by selective flocculation process using different flocculants, namely starch amylopectin (AP) and grafted copolymer of amylopectin (GAP). The iron ore used in the investigation contained 56.98% Fe, 5.45% Al2O3, and 4.22% SiO2.
Kichakeswari Tudu +2 more
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Effect of flocculant on settling and filtration of iron-ore sludge
Mining, Metallurgy & Exploration, 1996This paper deals with experimental work to improve the settling and filtration characteristics of an industrial sludge from an iron-ore mine using synthetic polymeric flocculants. The experimental work consisted of the characterization and evaluation of suitable flocculants to enhance settling and filtration rates. The optimum dosage of the flocculants
L. Besra +4 more
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[Iron chloride for simultaneous denitrification and chemical-biological flocculation process].
Huan jing ke xue= Huanjing kexue, 2013The efficiency of iron chloride on simultaneous denitrification and chemical-biological flocculation process was investigated through a lab-scale study. The results showed that: there were not significant differences in the denitrification rate, COD and NO3(-) -N removal efficiency between the control reactor and the denitrification reactor with the ...
Hong-Jie, Wang +3 more
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