Toxic element contamination in waters from the massive sulfide deposits and wastes around Giresun, Turkey

Karakaya, Necati; KARAKAYA, Muazzez ÇELİK

doi:10.3906/yer-1305-12

Cited by 10 publications

(6 citation statements)

References 11 publications

(11 reference statements)

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“…(2016)IndiaTube wells-32.10.10.3-3.20.6-30.8-4520.31.43.5Kostic et al. (2016)SerbiaTap water17.84.70.2ND-NDNDND183101ND0.13.0WellND52.01.31ND-3.41.20.2469540920.31.94.4Karakaya and Karakaya (2014)TurkeyStream10.265.713.7--24.312.71.63.2570.577.67.75.0Spring3.71.72.4--28.30.51.10.443.62.83.90.3 NSDWQ Nigerian Standard for Drinking Water Quality, WHO World Health Organization, EPA United States Environmental Protection Agency.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, since the industrial revolution, environmental pollution has become a worldwide critical issue relating to both industrialized and developing countries-generation of inorganic pollutants such as heavy metals, and organic pollutants such as detergents, fertilizers, pesticides, pharmaceuticals, and biomaterials are the consequences. In general, microorganisms, organic compounds, and toxic heavy metals are the sources of contaminations of water (Verma et al., 2018), although many are products of natural mobilization of these elements, such as weathering reactions, biological activity, volcanic emissions, and rocks solubilization (Meng et al., 2016; Kumar et al., 2017; Funes Pinter et al., 2018), as well as geological sources (Karakaya and Karakaya, 2014; Kostic et al., 2016) through mine drainage of waters that are rich in elements, which can mix into the surface water. Water becomes unsuitable for drinking and other domestic uses when they are enriched with potentially toxic elements (PTEs) (Nazeer et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

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Multivariate statistical approach and water quality assessment of natural springs and other drinking water sources in Southeastern Nigeria

Nnorom

Ewuzie

Eze

2019

Heliyon

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This baseline study investigated the physico-chemical and trace elements (including potentially toxic elements, PTEs) contents of ground and surface water sources used for domestic purposes in some districts within the shale bedrock terrain of Southeastern Nigeria. A total of 124 water samples from 13 natural springs, 24 streams, 80 boreholes and 7 hand-dug wells were collected from rural and urban areas and analysed by ICP-OES, GF-AAS and CV-AFS for 21 elements. The distribution pattern, sources of contamination, health risk of potentially toxic elements (PTEs), together with water quality index were investigated. The results were compared with national and international guidelines for drinking water. Al and Fe were implicated as the dominant pollutants in the water bodies. Water quality index (WQI) indicated that all the water sources had either excellent or good water quality (WQ) with the exception of a borehole, which had poor WQ. Different multivariate statistical approaches applied to evaluate the origins of the elements in the water bodies identified six source types that accounted for 70.88% of the total variance. Anthropogenic activities were considered to contribute much of Cu, Pb, Cd, Cr, Li and P, while Al, As, Co, Fe, Se, Ni, Y and V were likely from crustal materials, minerals and ores, and natural environments. Both anthropogenic and natural sources accounted for the Hg, Mn and Zn. Cluster analysis (CA) was adopted to classify 124 sample points into two groups of water pollution, reflecting influences from crustal materials and anthropogenic sources. From the result of hazard quotient and index (HQ/HI), there is little or no health risks arising from PTEs in using water from the region.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multivariate statistical approach and water quality assessment of natural springs and other drinking water sources in Southeastern Nigeria

Nnorom

Ewuzie

Eze

2019

Heliyon

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“…The tremendous increase in the use of heavy metals over the past few decades has inevitably resulted in an increased flux of metallic substances in the aquatic environment [1][2][3]. These pollutants enter the water environment through wastewater from metal plating industries, batteries, phosphate fertilizer, mining, pigments and stabilizers alloys [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Sorption of lead (II), cobalt (II) and copper (II) ions from aqueous solutions by γ -MnO ₂ nanostructure

Dinh

2015

Adv. Nat. Sci: Nanosci. Nanotechnol.

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Manganese dioxide γ-MnO 2 was synthesized via the reduction-oxidation reaction between KMnO 4 and C 2 H 5 OH at room temperature and characterized with x-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer-Emmet-Teller nitrogen adsorption (BET-N 2 adsorption). The results showed that γ-MnO 2 was about 10-18 nm in size and the BET surface area was about 65 m 2 g −1 . The feasibility of γ-MnO 2 used as a low cost adsorbent for the adsorption of Pb(II), Co(II) and Cu(II) from aqueous solutions was explored. During the adsorption process, batch technique was used, and the effects of contact time and pH on adsorption efficiency under room temperature were studied. The adsorption data showed that the Freundlich, Langmuir and Redlich-Peterson isotherms are a good model for the sorption of Co(II) and Cu(II), while the Langmuir and Redlich-Peterson isotherms provide a reasonable fit to the experimental data for Pb(II). By using the Langmuir isotherm, the adsorption capacities for Pb(II), Co(II) and Cu(II) are found to be 200 mg g −1 , 90.91 mg g −1 and 83.33 mg g −1 , respectively. The effectiveness of γ-MnO 2 in the sorption of the three metal ions from aqueous system has the order Pb(II) > Co(II) > Cu(II). Kinetic studies showed that a pseudo-second-order model was more suitable than the pseudo-first-order model. Also, the intra-particle diffusion models were used to ascertain the mechanism of the sorption process. It is concluded that γ-MnO 2 can be used as an effective adsorbent for removing Pb(II), Co(II) and Cu(II) from aqueous solutions.

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“…Galena is studied in ore deposits for scientific and economical purposes [38][39][40], and because of its toxicity in mining environments [41][42][43]. Galena is also well known in the industry, in particular for its semi-conductor properties and is thus thoroughly studied [44][45][46].…”

Section: Discussionmentioning

confidence: 99%

Scaling in a Geothermal Heat Exchanger at Soultz-Sous-Forêts (Upper Rhine Graben, France): A XRD and SEM-EDS Characterization of Sulfide Precipitates

et al. 2021

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The Soultz-Sous-Forêts geothermal site (France) operates three deep wells for electricity production. During operation, scales precipitate within the surface installation as (Ba, Sr) sulfate and (Pb, As, Sb) sulfide types. Scales have an impact on lowering energy production and inducing specific waste management issues. Thus scaling needs to be reduced for which a thorough characterization of the scales has to be performed. The geothermal brine is produced at 160 °C and reinjected at 70 °C during normal operation. In the frame of the H2020 MEET project, a small heat exchanger was tested in order to allow higher energy production, by reinjecting the geothermal fluid at 40 °C. Samples of scales were analyzed by XRD and SEM-EDS, highlighting that mostly galena precipitates and shows various crystal shapes. These shapes can be related to the turbulence of the flow and the speed of crystal growth. Where the flow is turbulent (entrance, water box, exit), crystals grow quickly and mainly show dendritic shape. In the tubes, where the flow is laminar, crystals grow more slowly and some of them are characterized by well-developed faces leading to cubes and derived shapes. The major consequence of the temperature decrease is the increased scaling phenomenon.

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Toxic element contamination in waters from the massive sulfide deposits and wastes around Giresun, Turkey

Cited by 10 publications

References 11 publications

Multivariate statistical approach and water quality assessment of natural springs and other drinking water sources in Southeastern Nigeria

Multivariate statistical approach and water quality assessment of natural springs and other drinking water sources in Southeastern Nigeria

Sorption of lead (II), cobalt (II) and copper (II) ions from aqueous solutions by γ -MnO ₂ nanostructure

Scaling in a Geothermal Heat Exchanger at Soultz-Sous-Forêts (Upper Rhine Graben, France): A XRD and SEM-EDS Characterization of Sulfide Precipitates

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Toxic element contamination in waters from the massive sulfide deposits and wastes around Giresun, Turkey

Cited by 10 publications

References 11 publications

Multivariate statistical approach and water quality assessment of natural springs and other drinking water sources in Southeastern Nigeria

Multivariate statistical approach and water quality assessment of natural springs and other drinking water sources in Southeastern Nigeria

Sorption of lead (II), cobalt (II) and copper (II) ions from aqueous solutions by γ -MnO 2 nanostructure

Scaling in a Geothermal Heat Exchanger at Soultz-Sous-Forêts (Upper Rhine Graben, France): A XRD and SEM-EDS Characterization of Sulfide Precipitates

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Sorption of lead (II), cobalt (II) and copper (II) ions from aqueous solutions by γ -MnO ₂ nanostructure