Evaluation of Physicochemical Methods for Treatment of Cu, Pb, Sb, and Zn in Canadian Small Arm Firing Ranges Backstop Soils

Laporte-Saumure, Mathieu; Martel, Richard; Mercier, Guy

doi:10.1007/s11270-010-0376-2

Cited by 31 publications

(20 citation statements)

References 24 publications

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“…Total iron amount was analyzed from iron-phenanthroline complex with a spectrophotometer at a fixed wavelength of 508 nm according to the literature (Eaton et al 1995). Total dissolved solid (TDS) of the water sample was determined according to Laporte-Saumure et al (2010). The sample was filtered with a glass fiber filter, and then, the water was evaporated at 180 °C in a porcelain cup of known weight.…”

Section: Methodsmentioning

confidence: 99%

Freeze desalination as point-of-use water defluoridation technique

et al. 2019

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Freeze desalination, i.e., desalination of water by freezing it, may be an option to treat polluted water at individual household level. Taking into account the widespread fluoride contamination of Ethiopian water resources and with the reason that most households in semi-urban and urban areas do have easier accessibility of refrigerators, this study aimed to investigate the defluoridation capacity of freeze desalination and its energy consumption for different water sources. For this purpose, synthetic solutions that emulate the major ion compositions of natural waters (hereafter called simulated water), tap water, and double-distilled water to which variable concentrations of fluoride ions were added were evaluated using home-use insulated refrigerator (BEKO, RRN 2650). The effects of conditions such as initial fluoride concentration, multi-ion existence, fraction of ice frozen, volume of the container, and freezing duration were evaluated in relation to the produced ice quality. It was found that nearly 48% and 62% removal of fluoride were achieved from tap water spiked with 10 mg/L F − and 10 mg/L F − aqueous solutions, respectively, with a total water recovery of 85 to 90%. The energy consumption predicted to produce the ice from tap water spiked with 10 mg/L F − and double-distilled water alone was found to be 93.9 and 91.8 kJ/L, respectively. The results showed that freeze desalination can be a potential technique for fluoride removal from water to be used as drinking water at household level in semi-urban and urban areas as well as in colder regions.

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Section: Methodsmentioning

confidence: 99%

Freeze desalination as point-of-use water defluoridation technique

et al. 2019

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“…According to Laporte-Saumure et al [175], the gravimetric techniques can be successfully applied to restore soils heavily contaminated by 16,000 to 38,000 mg Pb/kg and 11,500 mg Cu/kg. The application of the Jig and the shaking table to the fractions higher than 53 microns was highly efficient; allowing the removal of more than 92 and 90% Pb and Cu, respectively.…”

Section: Physical Methods For Metal Removalsmentioning

confidence: 99%

“…Several studies have shown that a chemical process applied downstream of physical separation processes can be successfully used to further reduce the concentrations of inorganic contaminants from soils [173,175,183,184]. In fact, the chemical extraction technologies are frequently proposed to remove toxic metals attached to the fine particles of soil.…”

Section: Leaching Processes Developed For the Solubilization Of Metalsmentioning

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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“…The required adjustments to enhance the decontamination of these soils were defined as follows: 20°tilt, feed water flow of 3.5 L min −1 , washing water flow of 8 L min −1 , and feed pulp composition of 20% total solids (w•w −1 ) (Veetil et al, 2014). For a soil highly contaminated by Pb, Zn, Cu, and Sb found in military shooting grounds, the removals ranged from 60% to 96% under a feed water flow of 3.5 L min −1 , a washing water flow of 8 L min −1 , and a pulp comprising 70% total solids (w•w −1 ) (Laporte-Saumure et al, 2010). The research of Bisone et al (2013) focused on the treatment of the 0.125-1 mm fraction of a soil contaminated by slags and foundry residues.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

Study of factors involved in the gravimetric separation process to treat soil contaminated by municipal solid waste

Mouedhen

Coudert

Blais

et al. 2018

Journal of Environmental Management

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The current research investigated the effectiveness of a gravimetric process (shaking table) to treat soil contaminated by municipal solid waste. A detailed characterization of the inorganic pollutants was performed, followed by concentrating the metals within smaller volumes using the shaking table technology. The densimetric examination of the 1-2 mm and 0.250-1 mm fractions of the contaminated soil showed that lead (Pb), copper (Cu), and tin (Sn) were mostly concentrated in the heavy fraction (metal removals > 50%). Scanning electron microscopy coupled with elemental analysis indicated the relevance of using gravimetric processes to treat this soil sample. The influence of shaking table parameters was determined using a Box-Behnken design. The tilt and washing water flow demonstrated significant effects on the motion of the 1-2 mm soil fraction and on the removal of Pb, Cu, and Sn. The results obtained under the optimal settings of the shaking table defined using the Box-Behnken methodology when treating the 1-2 mm fraction were close to those obtained when using dense media separation. The recovered mass of the concentrate was approximately 20.8% (w.w) of the total mass. The removals of Pb, Cu, and Sn were estimated to be 67.3%, 54.5% and 54.6% respectively. The predicted and experimental mass distributions of the medium (1-2 mm) and fine-sized (0.250-1 mm) particles were compared successively under some selected conditions. The mass distribution of both fractions showed similar tendencies in response to the forces applied by each condition. However, lowering the forces induced by the bumping action and the flowing film was recommended so as to efficiently treat the fine fraction (0.250-1 mm). The recovered mass of the concentrate (10%) was slightly lower than that obtained by dense media separation (13%). However, satisfactory removal yields were obtained for Pb, Cu, and Sn (42.7%, 23.6%, and 35% respectively).

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Evaluation of Physicochemical Methods for Treatment of Cu, Pb, Sb, and Zn in Canadian Small Arm Firing Ranges Backstop Soils

Cited by 31 publications

References 24 publications

Freeze desalination as point-of-use water defluoridation technique

Freeze desalination as point-of-use water defluoridation technique

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

Study of factors involved in the gravimetric separation process to treat soil contaminated by municipal solid waste

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