Dissolved pollutant transport in tailings ponds

Wiertz, Jacques V.; Marinkovic, F. A.

doi:10.1007/s00254-004-1148-3

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…AMD results from natural oxidation of sulphides or pyrite-rich tailings [65,66,70], with a generation of sulphuric acid based on the weathering reactions shown in Table 5 [69]. These reactions are the sources of mineralogical and geochemical alterations of sulphide minerals leading to the sulphuric acid leaching of oxidation products, with the release of metal elements to the environment [65,68,72]. The absence of neutralizing substances (Table 6) in sulphide-rich tailings promotes the establishment and spreading of an AMD [69].…”

Section: Acid Mine Drainage (Amd)mentioning

confidence: 99%

Review of Wastewater Treatment Technologies in View of their Application in the DR Congo Mining Industry

Lutandula⃰

Mpanga

2021

Glob. Environ. Eng.

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The world is currently experiencing a water crisis in terms of both quantity and quality due to water ever-growing demand in large-scale consumer sectors such as agriculture, industry and tourism. This crisis results from the increasing pressure on water resources brought about the world population growth, continued urbanization and rapid industrialization as sources of an increased release of contaminated water into watercourses. Faced with this worrying situation, strategies have been developed throughout the world for improving both the availability and access to water. Different technologies, both established and emerging ones, are utilized in view to treat wastewaters, including those of the mining origin. The present work reviews the different uses of water in the mining industry and identifies its different sources of polluted water. It analyses some wastewater treatment techniques and their applicability in the reclamation of wastewater generated by the DR Congo mining industry. The adopted approach, in dealing with the relevant issue of water crisis experienced worldwide in terms of both quantity and quality, is expected to help improving practices in the management of wastewater of mining origin, increasing access to water and its sustainable use.

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Section: Acid Mine Drainage (Amd)mentioning

confidence: 99%

Review of Wastewater Treatment Technologies in View of their Application in the DR Congo Mining Industry

Lutandula⃰

Mpanga

2021

Glob. Environ. Eng.

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“…The leaching of heavy metals from tailings is becoming an increasingly urgent problem worldwide (Alghanmi S I et al 2015). Heavy metals and other hazardous substances leach at different rates when precipitation or surface water passes through the tailings (Wiertz J and Marinkovic F 2005;Yan Q et al 2008). Heavy metals leached from tailings vary with the season and the temperature changes (Guo Y-g et al 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Temperature change affects the biochemical reactions between the tailings and the solution, resulting in changes in the solution's pH and heavy metal dissolution (Xiaojuan S et al 2012). Temperature changes affect the tailings' mineralogy and geochemical reactions, thus affecting the release of heavy metals and causing the cumulative acidification of wastewater, which releases metal ions (Wiertz J and Marinkovic F 2005). A large temperature gap between internal and external tailings increases biochemical reactions and promotes heavy metal dissolution (Duo M 2007).…”

Section: Introductionmentioning

confidence: 99%

Temperature-driven variation in the removal of heavy metals from contaminated tailings leaching in northern Norway

2019

Environ Monit Assess

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“…A finer soil can even result in a better removal efficiency of dissolved pollutants. In addition, hydraulic diffusion and chemical diffusion might control the dissolved pollutants in infiltration (Wiertz and Marinkovic 2005). In DuNan site, the nutrient pollutions are concerned.…”

Section: Resultsmentioning

confidence: 99%

Performance evaluation of a full-scale natural treatment system for nonpoint source and point source pollution removal

Chen

Lin

Huang

et al. 2008

Environ Monit Assess

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This study presents a full-scale performance of a natural treatment system (NTS) facility in Taiwan with nearly 2 years of observations. The study site, composed of several treatment ponds in series, was designed primarily to reduce polluted stormwater runoff from tea gardens and partially to untreated domestic wastewater from nearby villages. Thus, both nonpoint source and point source pollution are treated in this system. From 28 field samplings in 2006-2007, the NTS site shows satisfactory treatment performance and the effluent water quality is significantly improved. Seven of the 28 sampling events are storm events (nonpoint source pollution) and the remainder are from regular monitoring (point source pollution). The average volume of influent and effluent is 533 CMD and 196 CMD, respectively. In order to determine the removal efficiency, several assessment measures are employed in an attempt to obtain unbiased conclusions. They are removal rate (RR), efficiency rate (ER), summation of loads (SOL), flux rate (FR), and effluent probability method (EPM). The average percent removal efficiency of NH(3)-N is 53.5-75.2% and of TP is 59.0-84.7%, in which the highest result is calculated by SOL method and the lowest rate is obtained from RR. In FR evaluation, larger treatment capacity for NH(3)-N than for TP is provided in the site and the average FR is respectively 0.230 g/m(2) day and 0.017 g/m(2) day. Of the methods examined, EPM is the only method capable of illustrating data distribution. Finally, recommendations on the usefulness of these measures are summarized to facilitate the understandings of NTS performance evaluations.

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Dissolved pollutant transport in tailings ponds

Cited by 7 publications

References 5 publications

Review of Wastewater Treatment Technologies in View of their Application in the DR Congo Mining Industry

Review of Wastewater Treatment Technologies in View of their Application in the DR Congo Mining Industry

Temperature-driven variation in the removal of heavy metals from contaminated tailings leaching in northern Norway

Performance evaluation of a full-scale natural treatment system for nonpoint source and point source pollution removal

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