Laboratory treatability testing of soils contaminated with lead and PCBs using particle-size separation and soil washing

Sheets, Richard G.; Bergquist, Berit A

doi:10.1016/s0304-3894(99)00009-6

Cited by 31 publications

(14 citation statements)

References 6 publications

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“…As the second option, sequential washing was also investigated. Sheets and Bergquist (1999) noted that sequential washing with surfactant (Witconol 1206) and nitric acid resulted in large removal of polychlorinated biphenyls and Pb from soils. Khodadoust et al (2004) showed that 5% Tween 80 followed by 1 M citric acid or 1 M citric acid followed by 5% Igepal CA-720 could largely remove nickel and phenanthrene from kaolin.…”

Section: Introductionmentioning

confidence: 99%

Enhanced washing of HCB and Zn from aged sediments by TX-100 and EDTA mixed solutions

Yuan¹,

Wu²,

Wan³

et al. 2010

Geoderma

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Section: Introductionmentioning

confidence: 99%

Enhanced washing of HCB and Zn from aged sediments by TX-100 and EDTA mixed solutions

Yuan¹,

Wu²,

Wan³

et al. 2010

Geoderma

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“…Thus, the prior sieving procedure may reduce 60~80% volume of the soil to be treated thus reducing the treatment cost. Results obtained by Sheets and Bergquist [4] on PCB and lead contents of soil samples collected at superfund sites indicate that soil particles with diameters less than 74 µm constitute about 8~15% of the total soil mass. Nevertheless, most PCBs exist in the soil particles with less than 74 µm diameters.…”

Section: Introductionmentioning

confidence: 95%

Studies on the distribution of heavy metal Cd in contaminated soils of various particle sizes and removal efficiencies of heavy metal using acid washing

Cheng¹,

Huang²,

Hsiao³

2006

WIT Transactions on Ecology and the Environment, Vol 89

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Improper treatment and disposal of industrial wastewater and solid wastes result in serious heavy metal contamination of soil. A commonly used method for remediation of the soil contaminated by heavy metals is acid washing. This method is simple in principle, easy to operate and efficient in achieving the removal of heavy metals.The experience gained on soil remediation in Taiwan reveals that the soil particle distribution influences the heavy metal removal efficiency to a large extent. Hence, in this research, soil samples were collected from the contaminated sites and used in the investigation on the distribution of heavy metal Cd in soils of various particle sizes and the efficiencies of acid washing to remove the Cd from the soil of various particle distributions. The results will be used for future engineering implementation of the acid washing technique.The research results indicate that soils containing particles with sizes below 0.150 mm will hold increasing quantities of Cd and organic matter at decreasing particles sizes. As far as the acid washing efficiency is concerned, smaller particle diameters and higher organic matter contents result in decreasing efficiencies.

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“…In site remediation, the ex situ soil treatment plants are gaining importance in the European market (Schmitz and Andel 1997) and also when dealing with chlorinated organics (Deshpande et al 1999;Khodadoust et al 1999;Sheets and Bergquist 1999;Chu and Kwan 2003;Haapea and Tuhkanen 2006). Although cost restraints can be a factor, as mentioned earlier, in the case of CHC-and/or PCBcontaminated soils and groundwater, a certain degree of accuracy in monitoring and controlling the handling and degradation of pollutants is required.…”

Section: Definitions Of An Integrated Approach Fimentioning

confidence: 99%

Remediation Technologies for Organochlorine-Contaminated Sites in Developing Countries

Bezama

Navia

Mendoza

et al. 2008

Reviews of Environmental Contamination and Toxicology

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Despite its importance in human life, until recently the relationship between soils and human health has been undervalued, especially in least developed countries. Currently, a holistic approach has been incorporated to identify best practices in soil science, defining it as "the task of all people concerned with the soil to direct their interest, not just towards the physical, chemical, and biological aspects, but also to those environmental, economic, social, legal, and technical aspects that affect soil use" (Abrahams 2002; Fent 2003). Considering this definition, the European Union (EU) as well as most developed countries have recognized organochlorine-contaminated sites as potential threats to the human health, threats that take different forms, such as their influence on water (e.g., drinking water resources), soil, and air as well as their interrelationships, which can directly affect human health (EC 2002; EP 2002; Bezama et al. 2004). Moreover, economic expansion and industrial growth are linked with growing lack of "greenfields" (a term that defines all areas without previous history of development): the supply of new building sites is limited and must contend with other competing uses, such as housing, recreation, nature, traffic, or agriculture (De Sousa 2001; Tedd et al. 2001). Thus, cleaning and reusing contaminated sites can be a meaningful alternative to address this issue, because most contaminated sites are located in metropolitan centres and are, therefore, prime candidates for urban development (Lorber et al. 2004).

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Laboratory treatability testing of soils contaminated with lead and PCBs using particle-size separation and soil washing

Cited by 31 publications

References 6 publications

Enhanced washing of HCB and Zn from aged sediments by TX-100 and EDTA mixed solutions

Enhanced washing of HCB and Zn from aged sediments by TX-100 and EDTA mixed solutions

Studies on the distribution of heavy metal Cd in contaminated soils of various particle sizes and removal efficiencies of heavy metal using acid washing

Remediation Technologies for Organochlorine-Contaminated Sites in Developing Countries

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