Effects of Cattails and Hydraulic Loading on Heavy Metal Removal from Closed Mine Drainage by Pilot-Scale Constructed Wetlands

Nguyen, Thuong Thi; Soda, Satoshi; Kanayama, Akihiro; Hamai, Takaya

doi:10.3390/w13141937

Cited by 10 publications

(7 citation statements)

References 29 publications

(55 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In CWs, plants are important design components for decontamination [30]. In the present study, the contribution to heavy metal removal by cattails was 8.8-44.3%.…”

Section: Heavy Metal Removal Mechanism In Constructed Wetlandsmentioning

confidence: 52%

“…Heterotroph and sulfate-reducing bacteria (SRB) were determined by using the plate count method with R2A agar medium and Postgate's medium F, respectively [30].…”

Section: Sampling and Analysismentioning

confidence: 99%

“…where Cp (mg/kg) and X (kg) denote the metal concentration in cattails and the total dried biomass of plants before and after the experiment, respectively. The bioconcentration factor (BCF) and the translocation factor (TF) were also obtained as follows [30]:…”

Section: Calculationmentioning

confidence: 99%

See 2 more Smart Citations

Removal of Heavy Metals from Acid Mine Drainage with Lab-Scale Constructed Wetlands Filled with Oyster Shells

Nguyen

Soda

Horiuchi

2022

Water

Self Cite

View full text Add to dashboard Cite

The present study investigated the applicability of constructed wetlands (CWs) filled with oyster shells (OSs) for removing heavy metals from acid mine drainage (AMD). Lab-scale CWs consisted of columns (ID 12.5 cm, H 50 cm) packed with OSs or limestone, which were left unplanted or planted with cattails. Synthetic and real AMD containing 7.3 mg/L of Zn, 38.0 mg/L of Fe, and other minerals (pH = 4.0) were fed to the CWs (1 L/column) under a hydraulic retention time of 7 days in a sequencing batch mode. The effluent pH values of the CWs reached 6.9–8.3. Results show that OSs with high CaCO3 contents had higher neutralizing capability for AMD than limestone had. During 7 months of operation, all CWs were highly effective for removing Zn (88.6–99.2%); Fe (98.7–99.7%); and Cd, Cu, Pb, As, and Mn (48.2–98.9%) from both real and synthetic AMD. The mass balance in the CWs indicated accumulation in OSs or limestone as a main pathway for removing heavy metals, representing 44.8–99.3% of all metals, followed by biomass (8.8–29.9%) in the planted CWs. Other processes examined for this study only played a minor role in removing heavy metals. The higher metal treatment performance of OS CWs demonstrated the value of this aquaculture byproduct as a CW substrate.

show abstract

“…In CWs, plants are important design components for decontamination [30]. In the present study, the contribution to heavy metal removal by cattails was 8.8-44.3%.…”

Section: Heavy Metal Removal Mechanism In Constructed Wetlandsmentioning

confidence: 52%

“…Heterotroph and sulfate-reducing bacteria (SRB) were determined by using the plate count method with R2A agar medium and Postgate's medium F, respectively [30].…”

Section: Sampling and Analysismentioning

confidence: 99%

See 1 more Smart Citation

Removal of Heavy Metals from Acid Mine Drainage with Lab-Scale Constructed Wetlands Filled with Oyster Shells

Nguyen

Soda

Horiuchi

2022

Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…Wetlands have a positive effect on the quality of mine water due to the removal of contaminants by adsorption, coprecipitation and colloid filtration (Sracek et al 2018). The effectiveness of remediation in wetlands has been confirmed by several studies (Etteieb et al 2021;Nguyen et al 2021;Chen et al 2022).…”

Section: Methods Of Removing Hazardous Elements From Neutral Mining E...mentioning

confidence: 90%

Possibilities of remediation of neutral mine drainage - Removal and recovery of potentially hazardous elements

Prepilková¹,

Poništ²,

Schwarz³

et al. 2022

Soil & Water Res.

View full text Add to dashboard Cite

Mine water is one of the factors threatening the environment. The aim of the review article is to discuss and critically evaluate individual strategies for the remediation of neutral mine water. A critical evaluation is an essential tool to determine an appropriate remediation strategy. A wetland system is the preferred method of metal removal. However, the disadvantage is that it takes up more space compared to other methods and has a lower metal removal efficiency compared to active metal removal methods. When creating a suitable strategy, it is also necessary to assess the conditions of the mining site, which partially or completely prevent the use of the selected remediation strategy. The benefit of this review article is the processing of suitable combinations of treatment methods for the removal of potentially hazardous elements and their subsequent recovery. Future research in the field needs to focus on the analysis of the negative aspects of the environment that may disrupt or support the implementation of the selected method of remediation.

show abstract

“…In addition to its agricultural applications, akadama soil has displayed intriguing potential in the removal of hazardous metals from aqueous solutions. Previous studies have highlighted its effectiveness in capturing cesium (Ding et al 2014), as well as other metals such as cadmium, zinc, copper, arsenic (Nguyen et al 2021), mercury (Bhakta and Munekage 2011), and chromium (Ji et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Electricity generation in a ceramic separator microbial fuel cell employing a bacterial consortium for penicillin removal

2023

Archives of Environmental Protection

View full text Add to dashboard Cite

The contamination of the environment by antibiotics has become a serious problem, supported by abundant scientific evidence of its negative impact on both aquatic ecosystems and human health. Therefore, it is crucial to intensify research efforts towards developing effective and efficient processes for removing antibiotics from the aquatic environment. In this study, a bacterial consortium capable of breaking down penicillin was employed in a ceramic separator microbial fuel cell (MFC) to generate electricity. The consortium's properties such as laccase activity, penicillin removal and microbial structure were studied. The SF11 bacterial consortium, with a laccase activity of 6.16±0.04 U/mL, was found to be effective in breaking down penicillin. The highest rate of penicillin removal (92.15±0.27%) was achieved when the SF11 consortium was incubated at 30 °C for 48 hours. Furthermore, when used as a whole-cell biocatalyst in a low-cost upflow MFC, the Morganella morganii-rich SF11 consortium demonstrated the highest voltage and power density of 964.93±1.86 mV and 0.56±0.00 W/m3, respectively. These results suggest that the SF11 bacterial consortium has the potential for use in ceramic separator MFCs for the removal of penicillin and electricity generation.

show abstract

Effects of Cattails and Hydraulic Loading on Heavy Metal Removal from Closed Mine Drainage by Pilot-Scale Constructed Wetlands

Cited by 10 publications

References 29 publications

Removal of Heavy Metals from Acid Mine Drainage with Lab-Scale Constructed Wetlands Filled with Oyster Shells

Removal of Heavy Metals from Acid Mine Drainage with Lab-Scale Constructed Wetlands Filled with Oyster Shells

Possibilities of remediation of neutral mine drainage - Removal and recovery of potentially hazardous elements

Electricity generation in a ceramic separator microbial fuel cell employing a bacterial consortium for penicillin removal

Contact Info

Product

Resources

About