Speciation of heavy metals by modified BCR sequential extraction procedure in different depths of sediments from Sungai Buloh, Selangor, Malaysia

Nemati, Keivan; Bakar, Nor Kartini Abu; Abas, Mhd Radzi Bin; Sobhanzadeh, Elham

doi:10.1016/j.jhazmat.2011.05.039

Cited by 236 publications

(223 citation statements)

References 19 publications

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“…After homogenization and removal of large objects, air dried samples were powdered and passed through a 1mm stainless mesh sieve. Characterization of different fraction of metals from two sampling sites within Oskarshamn harbor area (O1 and O2) was carried by a three-step improved procedure, approved by BCR (Community Bureau of Reference, now SM&T) with digestion of the final residue of third step [7,8]. The first fraction (F1) reflects metals in carbonates and exchangeable forms, F2 metals in oxides of F/Mn, F3 metals bounded to organic matter and sulphides, and residual (R) is remaining fraction (aluminosilicate minerals).…”

Section: Methodsmentioning

confidence: 99%

“…The first fraction (F1) reflects metals in carbonates and exchangeable forms, F2 metals in oxides of F/Mn, F3 metals bounded to organic matter and sulphides, and residual (R) is remaining fraction (aluminosilicate minerals). The accuracy and consistency of the extraction procedure was evaluated through a pseudo-total digestion of the total content in the sediments [7,8]. Metal content determination were measured by ICP-AES (Perkin Elmer, Optima), ICP-SFMS (Thermo, Element).…”

Section: Methodsmentioning

confidence: 99%

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Sediment Mining

et al. 2017

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The main dilemma of contaminated sediments has been the proper management with reduced environmental footprints. Furthermore, by considering the fact that global warming and climate change may complicate the choice of management options, finding appropriate solutions become extremely critical. In the present work, mining of contaminated sediments to recover valuable constituents such as metals and nutrients is proposed as sustainable strategy, both through enhancing resilience of ecosystem and remediation. Contaminated sediments in the Oskarshamn harbor, southeast of Sweden were collected and analyzed through a modified sequential extraction in order to evaluate the feasibility of metals recovery. The results have shown that among different metals present in the sediments, Cu and Pb can be initially considered as economically feasible to recover. The shifting in the concept of dredging and further remediation of contaminated sediments towards sediment mining and recover of valuable metals can be considered in the near future as a sustainable strategy to tackle contaminated harbor/ports areas. However, it must be highlighted that short and long-term environmental impacts related to such activities should be addressed.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Sediment Mining

et al. 2017

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“…The sequential extraction procedure was carried out according to the BCR method (Sahuquillo et al 2003;Nemati et al 2011).…”

Section: Metal Speciationmentioning

confidence: 99%

The applicability of soil flushing technology in a metallurgical plant

Manca

Caredda

Orrù

2018

Int J Coal Sci Technol

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Soil flushing technology is an 'in situ' remediation technique involving the injection of a liquid solution. Applications of the soil flushing technique depend on the leachability of the pollutants and the environmental compatibility and total volumes of the solutions used. Therefore, experiments should consider these aspects by simulating the real phenomenon and using the most suitable reagents for the leachability of the different mineralogical forms present. Thirtyone laboratory tests were carried out (in batch and becker) to the complete exhaustion of the leaching capacity according to pH measurements. The reaction kinetics were studied by producing more than 300 solution samples during which the principal heavy metal concentrations, pH and Eh were measured. Leaching solutions containing various concentrations of hydrochloric, sulphuric, nitric and acetic acids were used. Mercury was leached using potassium iodide and acetic acid (pH 2). Analytes such as arsenic, cadmium, mercury, lead, selenium and zinc proved to be leachable in the investigated soil layer. However, high removal efficiencies could be obtained using different typological solutions, concentrations and volumes. The paper discusses the applicability of the soil flushing technique for different heavy metal contents and pH conditions of the flushing solution.

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“…Nemati et al (2011) in Malaysia conducted a study on various phases of heavy metals (zinc, copper, lead, cadmium, chromium, cobalt, nickel) in Sungai Buloh River sediment, and the results showed that chromium, copper, and lead had risks lower than 10%, but cobalt, zinc, and cadmium had moderate risk [13]. Castillo et al (2011) conducted sequential extraction of heavy metals (copper, nickel, chomiumr, lead, and cadmium) in three steps using a microwave in which chromium and lead had the most part of the exchange [14].…”

Section: Introductionmentioning

confidence: 99%

Examining Total Concentration and Sequential Extraction of Heavy Metals in Agricultural Soil and Wheat

Kahkha¹,

Bagheri²,

Noori³

et al. 2017

Pol. J. Environ. Stud.

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Soil contamination by heavy metals not only directly affects soil physical and chemical properties, reduces biological activity, and reduces soil biological nutrient achievement, but also is considered a serious risk to human health by entering the food chain and environmental security through penetrating groundwater. In this study we examined the concentrations and sequential extractions of such heavy metals as iron, lead, copper, zinc, and nickel in soil and wheat in the central part of Sistan, Iran. 160 soil samples and 160 samples of wheat from 20 specified units of soil of agricultural land of central Sistan were randomly sampled. The values of iron, lead, zinc, nickel, and copper were measured using atomic absorption spectrometry according to the standard method. Average concentrations of iron, nickel, copper, zinc, and lead in terms of mg/kg, respectively, were 9,647.34, 18.56, 7.26, 19.80, and 29.90. After examination of sequential extraction, the metals' mobilities were as follows: iron (99%)> nickel (33%)> copper (31%)> lead (27%)> zinc (6%). Wheat measurement results showed that metal accumulation in wheat grain was less than other parts. And also the comparison with the standard shows that the values of the metals in agricultural soil in the area were below the World Health Organization standard and in this sense there is nothing wrong with the health of the soil.

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Speciation of heavy metals by modified BCR sequential extraction procedure in different depths of sediments from Sungai Buloh, Selangor, Malaysia

Cited by 236 publications

References 19 publications

Sediment Mining

Sediment Mining

The applicability of soil flushing technology in a metallurgical plant

Examining Total Concentration and Sequential Extraction of Heavy Metals in Agricultural Soil and Wheat

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