A Pilot-Scale Passive System for the Treatment of Acid Mine Drainage

Groudev, Stoyan; Georgiev, Plamen; Spasova, Irena; Angelov, Anatoli; Komnitsas, K.

doi:10.1007/978-94-010-0940-9_12

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…Hence 'reductive precipitation' of uranium minerals is regarded a major and sustainable mechanism. It is frequently aimed at in constructed wetland-type systems (Hallett et al, 1997;Groudev et al, 2000;Veselic et al, 2001), in particular microbial mediated reduction of uranyl ions as described by Lovley et al (1991). In extreme contrast, it was an open question whether this pathway is significant in natural wetlands, and if so, whether this can be applied as a model for designing artificial wetlands.…”

Section: Implications Of Uranium Accumulationmentioning

confidence: 99%

Geochemistry of natural wetlands in former uranium milling sites (eastern Germany) and implications for uranium retention

Schöner

Noubactep²,

Büchel

et al. 2009

Geochemistry

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Section: Implications Of Uranium Accumulationmentioning

confidence: 99%

Geochemistry of natural wetlands in former uranium milling sites (eastern Germany) and implications for uranium retention

Schöner

Noubactep²,

Büchel

et al. 2009

Geochemistry

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“…For centuries, natural wetlands have been a sink for waste since they have the ability to absorb large quantities of environmental pollutants (Groudev et al 2001). This is facilitated by some fundamental purification processes such as sedimentation, oxidation of contaminants and bacterial degradation, uptake of nutrients by plants, adsorption of dissolved substances and particles in the waste on to the substrate.…”

Section: Introductionmentioning

confidence: 99%

Assessment of nutrient and heavy metal concentrations in sediments and macrophytes of the Oroma wetland, Nigeria

Ogugbue

Tovo

Clinton

2020

MJEE

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This study assessed the nutrient and heavy metal concentrations in sediments and macrophytes of the Oroma wetland, University of Port Harcourt, Nigeria. A map representation of the wetland was assigned North-South (N-S) grid lines and six numbers were randomly selected to represent the six sampling points -SS1, SS2, SS3, SS4, SS5 and SS6. Sediment and three macrophytes (Alchornea cordifolia, Sacciolepis africana, and Harungana madagascariensis) that were present in each grid were collected and analyzed. Results showed that the wetland sediment was polluted with cadmium (4.80-54.10 mg/kg) and lead (98.60-175.30 mg/kg) whereas, only the sediment obtained from SS1 was polluted with nickel (75.9 mg/kg). In the sediment, cadmium posed a very high ecological risk; lead posed a considerable ecological risk whereas, the other heavy metals analyzed in this study posed low ecological risks. SS5 and SS6 had very high ecological risks whereas, the other sampling sites had moderate ecological risks. Cadmium, cobalt, copper, iron, zinc and arsenic were in same cluster in sediment based on cluster analysis while, chromium and nickel were assigned a separate cluster. The macrophytes collected from each site bioaccumulated the heavy metals from the sediment albeit at varying levels. Major sources of the nutrient and heavy metal burden in Oroma wetland were identified as runoffs and effluents from the adjoining University, residential areas, farmlands, car wash centers, generator houses, slaughter houses, metal dump sites, automobile maintenance shops, and vehicle exhaust. This study has highlighted the pollution status of the Oroma wetland sediment, the heavy metal burden of its macrophytes and the ecological risks posed by these heavy metals which have serious public health and ecological consequences.

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“…The removal of heavy metals from lakes is important to protect the lake environment. For many years, natural wetlands were sinks for waste disposal . However, constructed wetlands are more efficient in the removal of heavy metals than natural wetlands .…”

Section: Introductionmentioning

confidence: 99%

Remediation Techniques for Heavy‐Metals Contamination in Lakes: A Mini‐Review

Giripunje

Fulke

Meshram

2015

CLEAN Soil Air Water

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Heavy‐metals contamination in lakes has a negative impact on lake ecosystems. This review provides an insight into possible heavy‐metals remediation techniques for lake environments using different techniques, for example, physical, chemical, and biological methods. As a result of the non‐uniform and complex nature of lakes, the selection of the most suitable the heavy‐metals removal technique is a difficult task. Among these processes, biological processes are efficient to remove heavy metals and convert them into simpler forms. Biological remediation techniques are the most suitable for lakes with low levels of contamination and include processing by bioadsorbents such as plants, algae, fungi, and micro‐organisms. Physical and chemical remediation of heavy metals are expensive but show fast results. The combination of all remediation techniques increases the efficiency of the removal of heavy metals and improves overall lake performance. The development of remediation techniques is necessary for lakes in future.

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A Pilot-Scale Passive System for the Treatment of Acid Mine Drainage

Cited by 4 publications

References 1 publication

Geochemistry of natural wetlands in former uranium milling sites (eastern Germany) and implications for uranium retention

Geochemistry of natural wetlands in former uranium milling sites (eastern Germany) and implications for uranium retention

Assessment of nutrient and heavy metal concentrations in sediments and macrophytes of the Oroma wetland, Nigeria

Remediation Techniques for Heavy‐Metals Contamination in Lakes: A Mini‐Review

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