Design considerations for packed columns removing manganese from mining seepage

Journal Article · Sat Apr 01 00:00:00 EST 1989 · Journal of the Tennessee Academy of Science; (USA)

OSTI ID:6444411

Gordon, J A; Chuang, N S ^[1]; Wallace, R P ^[2]

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1. Tennessee Technological Univ., Cookeville (USA)
2. CH2M Hill, Montgomery, AL (USA)

A field study during 1986 at a reclaimed strip mine are showed that column technology had promise as a low-maintenance, low-cost method of manganese removal and, therefore, design and operation data were needed before proceeding with a pilot plant scale operation. During 1987, three columns were operated in the laboratory to obtain needed design information. Removal efficiency was assessed as a function of hydraulic loading, mass loading, column depth, and pH. The studies yielded good information which could be expressed by simple models. The mechanisms of manganese removal were also assessed. Both batch and flow-through studies using various microbial poisons were conducted to determine whether the removal is biological or physical-chemical. Batch studies using autoclaving, ethanol, and sodium azide showed that adsorption of manganese was a fist step in the process followed by oxidation. Subsequent studies used smaller diameter columns in a continuous flow mode which were poisoned with sodium azide and operated for a longer period of time to avoid assessing only the adsorption step.

• OSTI ID: 6444411
• Journal Information: Journal of the Tennessee Academy of Science; (USA), Vol. 64:2; ISSN 0040-313X
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
MANGANESE
ADSORPTION
SURFACE MINING
LAND RECLAMATION
AZIDES
PH VALUE
SODIUM COMPOUNDS
ALKALI METAL COMPOUNDS
ELEMENTS
METALS
MINING
NITROGEN COMPOUNDS
SORPTION
TRANSITION ELEMENTS
010800* - Coal
Lignite
& Peat- Waste Management
012020 - Coal
Lignite
& Peat- Surface Mining- (1987-)