Treatment of Metal Contaminated Groundwater in Passive Systems: A Demonstration Study

Mueller, Robert F.; Sinkbeil, D. E.; Pantano, Jr.; Drury, William J.; Diebold, F.; Chatham, W.; Jónás, Jácint; Pawluk, D.; Figueira, J.

doi:10.21000/jasmr96010590

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Hydraulic residence time (HRT) for the test cells varied between 1.5 and 10 days. The operating conditions are presented in Table 1 and are further defined in Mueller et al (1996). Two treatment trains are being tested (Figure 1 ):…”

Section: Methodsmentioning

confidence: 99%

Treatment of Metal Containing Ground and Surface Water in Passive Systems

Mueller¹,

Chatham²,

Drury³

et al. 1997

ASMR

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Abstract. This study is part of a collaborative effort between Montana Tech and the Atlantic Richfield Company (ARCO) to find solutions for treating metal contaminated water (e.g., Cu, Zn, Cd, Mn, and Fe) from the Butte Hill as part of the remediation activities for the Clark Fork River Basin, in Southwestern Montana.The field demonstration systems were constructed in 1995 and include anoxic horizontal flow gravel bed wetlands with cattail plants, horizontal flow gravel/organic substrate wetlands with cattail plants, and a vertical upflow gravel/organic substrate system without plants. Flow through operation was started in May 1996 with a total flow into the treatment systems of approximately 100 m3 Id. Hydraulic residence time for the test cells varies between 1.5 and 10 days. Results from the first year of operation including startup and performance through the winter with respect to hydrology, geochemistry, and microbiology within the test cells are presented. Metal removal efficiencies for the various technologies were determined.Additional key words: Constructed wetlands, metal remediation, sulfate-reducing bacteria, field demonstration study.

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Section: Methodsmentioning

confidence: 99%

Treatment of Metal Containing Ground and Surface Water in Passive Systems

Mueller¹,

Chatham²,

Drury³

et al. 1997

ASMR

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Microbially Mediated Thallium Immobilization in Bench Scale Systems

Mueller¹

2001

Mine Water and the Environment

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Results from bench-scale tests for thallium remediation in mining-impacted water are presented and removal mechanisms are discussed. The source water consisted of surface runoff mixed with groundwater from an inactive gold mine in central Montana. Bench scale columns were operated under continuous flow for 225 days to test for microbially-mediated thallium immobilization. Various compositions of straw and steer manure in a gravel matrix provided a source of organic nutrients and sulfate-reducing bacteria sufficient to initiate and maintain microbial sulfate reduction up to 270 mmol/m 3 d. Hydraulic residence times of 2.7 days produced an aqueous thallium effluent concentration below the analytical detection limit of 2.5 µg/L at 20°C in all the tested columns. These effluent levels were achieved for influent dissolved thallium concentrations varying from 450 to 790 µg/L. An increase in pH between influent (pH 6.9) and effluents (pH 7.5) was observed. Hydraulic conductivity remained relatively constant during the course of the experiments and varied for the different test columns between 0.2 and 10 cm/s. The highest kvalues were observed in the horizontal flow column. In addition to the column tests, sterile serum-vial experiments were performed to confirm that thallium sulfide (Tl 2 S) formation and precipitation was the most likely mechanism for thallium removal. Data from the bench-scale experiments were utilized for the design of an onsite pilot-scale passive treatment system.

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Mine-Impacted Water and Biochemical Reactors

Fitch

2015

Food, Energy, and Water

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Treatment of Metal Contaminated Groundwater in Passive Systems: A Demonstration Study

Cited by 3 publications

References 4 publications

Treatment of Metal Containing Ground and Surface Water in Passive Systems

Treatment of Metal Containing Ground and Surface Water in Passive Systems

Microbially Mediated Thallium Immobilization in Bench Scale Systems

Mine-Impacted Water and Biochemical Reactors

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