Toxic Metal Removal from Polluted Soil by Acid Extraction

Bisone, Sara; Blais, Jean‐François; Drogui, Patrick; Mercier, Guy

doi:10.1007/s11270-012-1145-1

Cited by 24 publications

(6 citation statements)

References 41 publications

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“…Many soil researchers have studied how to extract heavy metals from soil samples through hydrochloric acid (HCl), nitric acid (HNO 3 ), ethylene diamine tetraacetic acid (EDTA), etc. The heavy metals that can be extract by these extraction agents are named as available heavy metals. − They found that it is efficient to extract heavy metals from soil by these extraction agents . However, nobody adopt this method to detect heavy metals in soil using LIBS.…”

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confidence: 99%

Determination of Trace Available Heavy Metals in Soil Using Laser-Induced Breakdown Spectroscopy Assisted with Phase Transformation Method

Yang

Zhou

et al. 2018

Anal. Chem.

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To detect available heavy metals in soil using laser-induced breakdown spectroscopy (LIBS) and improve its poor detection sensitivity, a simple and low cost sample pretreatment method named solid-liquid-solid transformation was proposed. By this method, available heavy metals were extracted from soil through ultrasonic vibration and centrifuging and then deposited on a glass slide. Utilization of this solid-liquid-solid transformation method, available Cd and Pb elements in soil were detected successfully. The results show that the regression coefficients of calibration curves for soil analyses reach to more than 0.98. The limits of detection could reach to 0.067 and 0.94 ppm for available Cd and Pb elements in soil under optimized conditions, respectively, which are much better than those obtained by conventional LIBS.

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confidence: 99%

Determination of Trace Available Heavy Metals in Soil Using Laser-Induced Breakdown Spectroscopy Assisted with Phase Transformation Method

Yang

Zhou

et al. 2018

Anal. Chem.

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“…The physico-chemical properties of the contaminants and their initial concentration in the soils play a very important role in the choice of the most efficient method of rehabilitation [81][82][83]. It is important to note that the treatment of sites contaminated by both inorganic and organic contaminants is more complex, which is mainly due to the different properties and behavior of inorganic and organic contaminants [84][85][86][87][88].…”

Section: Decontamination Techniquesmentioning

confidence: 99%

Treatment technologies used for the removal of As, Cr, Cu, PCP and/or PCDD/F from contaminated soil: A review

Guemiza

Coudert

Metahni

et al. 2017

Journal of Hazardous Materials

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The contamination of soils by metals such as arsenic, chromium, copper and organic compounds such as pentachlorophenol (PCP) and dioxins and furans (PCDD/F) is a major problem in industrialized countries. Excavation followed by disposal in an appropriate landfilling is usually used site to manage these contaminated soils. Many researches have been conducted to develop physical, biological, thermal and chemical methods to allow the rehabilitation of contaminated sites. Thermal treatments including thermal desorption seemed to be the most appropriate methods, allowing the removal of more than 99.99% of organic contaminants but, they are ineffective for inorganic compounds. Biological treatments have been developed to remove inorganic and hydrophobic organic contaminants but their applications are limited to soils contaminated by easily biodegradable organic compounds. Among the physical technologies available, attrition is the most commonly used technique for the rehabilitation of soils contaminated by both organic and inorganic contaminants. Chemical processes using acids, bases, redox agents and surfactants seemed to be an interesting option to simultaneously extract organic and inorganic contaminants from soils. This paper will provide an overview of the recent developments in the field of decontamination technologies applicable for the removal of As, Cr, Cu, PCP and/or PCDD/F from contaminated soils.

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“…따라서, 풍화된 형태와 풍화되지 않은 형태를 동시에 함유한 토양오염의 경우는 비중선별 등의 광물처리공정 후 화학적 침출공정에 의해 처리되어야 한 다 (Mercier et al, 2002). Ure et al, 1993)이 있으며, 이 방법들은 주로 농토 (Atkinson et al, 2011;Liu et al, 2013;Yang et al, 2013), 산업부지 (Bisone et al, 2012;Burrows and Peters, 2013;Yarlagadda et al, 1995), 호수 및 우물 퇴적토 (Harichandan et al, 2013;Sahuquillo et al, 1999), 광산지 대 (Anju and Banerjee, 2011;Atkinson et al, 2011;Martinez-Martinez et al, 2013), 도시하수슬러지 (Zhu et al, 2011), 강기슭 (Howari and Banat, 2001), 사격장 (Chen et al, 2002;Kwon et al, 2013;Lee and Oa, 2012 MgCl 2 용액 8 cm (Fig. 3(a)), 탄산염 결합형태에 37.5%-56.3%, 산화물 결합형태에 14.5%-36.2%, 그리고 잔사에 4.7%-45% 존재한다.…”

Section: 서 론 군부대에서의 소형화기훈련이나 민간사격장의 레저활동unclassified

The Determination of Chemical Forms of Heavy Metals in Shooting Area Contaminated Soil Using Sequential Extraction Method

Moon¹,

Park²,

Yoo

et al. 2015

Journal of Soil and Groundwater Environment

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The soil sample obtained from shooting area contaminated with Pb, Cu, and Zn was investigated to determine the chemical forms of heavy metals with Tessier's sequential extraction method, which is constituted of five fractions such as 'exchangeable', 'bound to carbonate', 'bound to oxide', 'bound to organic matter', and residual fractions. The amount of organic matter was measured by loss on ignition (LOI) and then the results of 'bound to organic matter' and LOI were compared. The sequential extraction results show that 4.7%-45% of Pb, 6.2%-25.9% of Cu and 3.9%-15.3% of Zn belong to the 'bound to organic matter' fraction, but LOI result shows that only 1.0%-2.8% of organic matter exists in the soil sample. In heavy medium separation tests, because Pb and Cu extracted in 'bound to organic matter' and residual fractions were removed, the heavy metals in the fractions would exist as heavier forms. These results suggest that the part of heavy metal extracted in 'bound to organic matter' fraction would result from the oxidation of metallic forms by hydrogen peroxide and nitric acid used in the fraction, and, consequently, that the 'bound to organic matter' fraction should be investigated in detail to determine the removal method and treatment capacity when the Tessier's sequential extraction method is used to examine heavy metal contaminants resulted from elemental metal like bullets.

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Toxic Metal Removal from Polluted Soil by Acid Extraction

Cited by 24 publications

References 41 publications

Determination of Trace Available Heavy Metals in Soil Using Laser-Induced Breakdown Spectroscopy Assisted with Phase Transformation Method

Determination of Trace Available Heavy Metals in Soil Using Laser-Induced Breakdown Spectroscopy Assisted with Phase Transformation Method

Treatment technologies used for the removal of As, Cr, Cu, PCP and/or PCDD/F from contaminated soil: A review

The Determination of Chemical Forms of Heavy Metals in Shooting Area Contaminated Soil Using Sequential Extraction Method

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