The Sequential Tests about Passive Treatment for Acid Mine Drainage Using Sulfate Reducing Bacteria

Hamai, Takaya; Kodera, Takuya; Kobayashi, Mikio; Masuda, Nobuyuki; Sakata, Takeshi

doi:10.2473/journalofmmij.132.175

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…Actually, SRB can use organic matter derived from root exudates as an electron donor and sulfate in mine drainage as an electron acceptor, resulting in production of sulfide. Although the chemical forms of the metals accumulated in the CWs were not determined in this study, precipitation of insoluble sulfides such as CdS and ZnS can enhance metal removal in the CW 2,3,5,6,16 . New shoots of reeds and cattails in the CWs grew in the following spring.…”

Section: Discussionmentioning

confidence: 91%

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A Laboratory Experiment System for Developing Mine Drainage Treatment Technologies Using Constructed Wetlands—Sequencing Batch Treatment of Cd-Containing Neutral Mine Drainage—

Soda

Sasaki

Nguyen

et al. 2021

RESOURCES PROCESSING

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A lab-scale experimental system accommodating soil and plants was designed to evaluate the applicability of constructed wetlands (CWs) to mine drainage treatment. Synthetic wastewater containing Cd (0.11 mg/L) and other minerals (pH 6.8) was prepared based on the chemical composition of an actual neutral mine drainage (NMD). In lab-scale CWs consisted of a column (ID 12.5 cm, H 50 cm) filled with pumice stones and loamy soil were planted reed (Reed-CW) or cattail (Cattail-CW) plants. Some were left unplanted (Unplanted CW). The synthetic NMD (2.0 L) was treated in a 1-week cycle sequencing batch mode in the CWs in a greenhouse. The unplanted CW removed cadmium sufficiently to satisfy the effluent standard (0.03 mg/L) from the NMD, mainly by soil adsorption. Presence of the emergent plants, especially cattail, enhanced metal removal possibly by filtration with their elongated roots and metal sulfide precipitation by sulfate-reducing bacteria in the rhizosphere of the Cattail-CW.

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Section: Discussionmentioning

confidence: 91%

“…A cost-effective and low-maintenance alternative technology for mine drainage treatment is constructed wetlands (CWs) incorporating physical, chemical, microbial, and botanical processes [2][3][4] . As a passive treatment system, CWs are useful with and without other processes.…”

Section: Introductionmentioning

confidence: 99%

A Laboratory Experiment System for Developing Mine Drainage Treatment Technologies Using Constructed Wetlands—Sequencing Batch Treatment of Cd-Containing Neutral Mine Drainage—

Soda

Sasaki

Nguyen

et al. 2021

RESOURCES PROCESSING

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“…In Japan, more than 5,000 mines were operated in the past [6]. In 2013, treatment for AMD was being carried out in approximately 80 mines [7]. In some of acidic hot springs of Japan, treatment for the acidic water is also being performed.…”

Section: Introductionmentioning

confidence: 99%

Variations of Water Quality Along Acidic Rivers in Volcanic Areas of Eastern Japan

Saito¹,

Watanabe²

2020

GEOMATE

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There are many acidic rivers in Japan, due to acid mine drainage (AMD) and drainage from acidic hot springs. Low pH values and relatively high concentrations of heavy metals and other trace elements are often detected in the acidic rivers. In this study, water quality parameters including pH and concentrations of major cations and anions, heavy metals, and other trace elements were investigated in nine acidic river basins located in volcanic areas of Eastern Japan. The study included both untreated river basins and basins where neutralization treatment is carried out. Variations of water quality along two acidic river basins and the mechanisms controlling the variations in water quality were also discussed. Generally, the pH values ranged from 1.31 to 5.45 in the nine river basins. Positive effects from neutralization treatment were observed along the Agatsuma river basin where pH values markedly increased and the concentrations of As, Pb, F, Fe, and Al dramatically decreased. In comparison, along the untreated Nagase river basin, the pH values gradually increased and the concentrations of As, Pb, F, Fe, and Al steadily decreased, mainly due to the dilution effect caused by mixing with other rivers. In these two river basins, harmful elements such as As, Pb, and F were probably coprecipitated with Fe and Al hydroxides. The sediments deposited in the Nagase river bed and Lake Inawashiro may therefore contain much higher concentrations of harmful elements including As, Pb, and F as were previously reported on the Shinaki Dam of the Agatsuma river basin.

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“…Japan Oil, Gas and Metals National Corporation (JOG-MEC) has been developing a compact passive treatment process with a vertical flow bioreactor that contains SRB (Hamai et al 2016). Since the concentration of dissolved organic carbon in AMD is very low (chemical oxygen demand is usually less than 10 mg/L of O 2 ; Kolmert and Johnson 2001), a carbon source must be added to the bioreactor to promote SRB activity.…”

Section: Introductionmentioning

confidence: 99%

Year-Round Performance of a Passive Sulfate-Reducing Bioreactor that Uses Rice Bran as an Organic Carbon Source to Treat Acid Mine Drainage

et al. 2017

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The Sequential Tests about Passive Treatment for Acid Mine Drainage Using Sulfate Reducing Bacteria

Cited by 5 publications

References 10 publications

A Laboratory Experiment System for Developing Mine Drainage Treatment Technologies Using Constructed Wetlands—Sequencing Batch Treatment of Cd-Containing Neutral Mine Drainage—

A Laboratory Experiment System for Developing Mine Drainage Treatment Technologies Using Constructed Wetlands—Sequencing Batch Treatment of Cd-Containing Neutral Mine Drainage—

Variations of Water Quality Along Acidic Rivers in Volcanic Areas of Eastern Japan

Year-Round Performance of a Passive Sulfate-Reducing Bioreactor that Uses Rice Bran as an Organic Carbon Source to Treat Acid Mine Drainage

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