Heavy metal adsorption by different minerals: application to the remediation of polluted soils

García-Sánchez, Antonio-Javier; Alastuey, Andrés; Querol, Xavier

doi:10.1016/s0048-9697(99)00383-6

Cited by 177 publications

(69 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is increasingly recognised that the remedial methods of 38 ,1997;Sun and Doner, 1998; Jain et al, 1999;Garcia-Sanchez et al, 2002; 47 Goldberg, 2002;Ford, 2002; Jackson and Miller, 2000; Grafe et al, 2001;Waltham and Eick, 48 2002;Sun and Doner, 1996; Manning et al, 1998; Goldberg and Johnston, 2001; Livesey 49 and Huang, 1981; Elkhatib et al,1984a,b; Manning and Suarez, 2000;Smith et al, 2002) 50 and this had led to investigations into using Fe oxides to remediate As-contaminated soil 51 3 (e.g. Boisson et al, 1999;Garcia-Sanchez et al, 1999; Warren and 52 Alloway, 2003; Nielsen et al, 2011; Kumpiene et al, 2008; Lee et al, 2011). Ochre is the 53 name given to Fe(III) oxyhydroxide precipitates that accumulate in the outflows of mine 54 systems.…”

mentioning

confidence: 99%

Does ochre have the potential to be a remedial treatment for As-contaminated soils?

Olimah

Shaw

Hodson

2015

Environmental Pollution

View full text Add to dashboard Cite

13Ochre is an iron oxyhydroxide-rich waste that accumulates in water bodies associated with 14 disused mines. Laboratory experiments were conducted to examine the potential of four 15 different ochres to be used as remedial agents for As contaminated soils. The ochres 16 removed As from solution (200 and 500 mg L -1 ) in adsorption experiments at pH 3 and 8 and 17 when added to As contaminated soil (5 % w/w) significantly reduced As release to solution. 18In both these experiments the highest surface area ochres performed best. The impact of 19 ochre amendments on uptake of As from soil by plants and humans and release of As to 20 ground water was assessed in a year-long incubation. Ochres increased soil pH and 21 reduced CaCl 2 extractable As but had no consistent effect on plant growth, plant As uptake 22 or As extraction in physiologically based extraction tests. Ochre may be better used for water 23 treatment than soil remediation. 24 Keywords: arsenic; ochre; contaminated soil; incubation; bioassays 25 2 26 Capsule: Ochre amendments to As-contaminated soil increase pH and reduce CaCl 2 27 extractable As but have no impact on plant growth, As uptake or PBET extractable As. 28 29 Introduction 30High concentrations of As in soils and water bodies occur throughout the world due to 31 anthropogenic activities such as mining, smelting and wood preservative usage (Abrahams 32 and Thornton; Álvarez-Ayuso et al., 2012; Eapaea et al., 2007; Lin et al., 2004; Mench and 33 Bes, 2009; Nriagu et al., 2007; Ritchie et al., 2013;. The main routes of 34 arsenic poisoning from contaminated soils are accidental ingestion or inhalation of 35 contaminated soil or water or consumption of plants grown on As-contaminated soils 36 (Miretzky and Cirelli, 2010). There is a need for affordable remedial solutions that can be 37 applied to As-contaminated soil. It is increasingly recognised that the remedial methods of 38 ,1997;Sun and Doner, 1998; Jain et al., 1999;Garcia-Sanchez et al., 2002; 47 Goldberg, 2002;Ford, 2002; Jackson and Miller, 2000; Grafe et al., 2001;Waltham and Eick, 48 2002;Sun and Doner, 1996; Manning et al., 1998; Goldberg and Johnston, 2001; Livesey 49 and Huang, 1981; Elkhatib et al.,1984a,b; Manning and Suarez, 2000;Smith et al., 2002) 50 and this had led to investigations into using Fe oxides to remediate As-contaminated soil 51 3 (e.g. Boisson et al., 1999;Garcia-Sanchez et al., 1999; Warren and 52 Alloway, 2003; Nielsen et al., 2011; Kumpiene et al., 2008; Lee et al., 2011). Ochre is the 53 name given to Fe(III) oxyhydroxide precipitates that accumulate in the outflows of mine 54 systems. In the United Kingdom the Coal Authority is responsible for over 68 (as of August 55 2014) mine water treatment schemes that remove c. 4000 tonnes of iron per year from water 56 courses resulting in ochre production (UK Government, 2014). Some of this ochre is used in 57 brick production to partially offset the waste management costs (Clean Rivers Trust, 2012). 58Additionally, research has been car...

show abstract

mentioning

confidence: 99%

Does ochre have the potential to be a remedial treatment for As-contaminated soils?

Olimah

Shaw

Hodson

2015

Environmental Pollution

View full text Add to dashboard Cite

show abstract

“…Heavy metals present in soils can find their way into human and animal populations through direct exposure or food chain/web, posing a serious risk to human health [29,30,45]. Heavy metals contamination may originate from chemical/industrial waste landfills if not properly designed.…”

Section: Reuse Of Dredged Sediments Introductionmentioning

confidence: 99%

Modified clays for barriers: a review

Emidio

Verástegui-Flores

Mazzieri

et al. 2017

Innov. Infrastruct. Solut.

View full text Add to dashboard Cite

The aim of this Specialized Lecture is to present the recent advances and issues, as well as original research, on Modified Clays for Barriers. Topics of interest include:(1) long-term hydraulic performance of modified clays for GCLs, (2) chemico-osmotic and diffusion efficiency of modified clays, (3) modeling coupled chemical-hydraulicmechanical behavior of modified clays, (4) wet and dry ageing of modified clays, (5) use of novel bentonites for vertical barrier applications, and (6) organoclays for various barrier applications. In addition, the possible reuse of dredged sediments after polymer treatment will also be discussed. Environmental management and handling of dredged sediments are important worldwide because enormous amounts of dredged material emerge from maintenance, construction and remedial works within water systems. Usually these materials after temporary upland disposal in lagoons are disposed in landfills. The aim of this study is to analyse the possible reuse of these sediments as a low-cost alternative material for landfill covers. The mechanisms through which polymers can improve the efficiency of dredged sediments for waste containment low permeable barriers are discussed.

show abstract

“…4 area and the high cost of money and energy involved (Boisson et al 1999). It is worth considering a more cost-effective alternative for soil remediation by in situ treatment of heavy metals to reduce the risk of the contaminants through groundwater, surface water, or atmospheric exposure pathways (Basta & McGowen 2004), such as the addition of soil amendments (Gray et al 2006;Lee et al 2010), minerals (García-Sánchez et al 1999), microorganisms (Groudev et al 2001), or others (Dermont et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of different soil layers on porewater to remediate acidic surface environment at a close mine site

Villafane

Igarashi

Harada

et al. 2012

Environ Monit Assess

View full text Add to dashboard Cite

This paper describes the chemistry of porewater when constructing different soil layers on acidic weathered rock of a closed mine to remediate the surface environment. Three cases were set on a flat surface of the site, all under different layer systems. Case 1 was only composed of weathered rocks. A top neutralization layer was constructed on the weathered rocks in case 2, whereas both an upper low permeable and middle neutralization layers were constructed on the weathered rocks in case 3. The low permeable layer of 30 cm thick consists of clay, and the neutralization layer of 30 cm thick consists of the mixture of the weathered rock and calcium carbonate as a neutralizer. Porewater sampling systems and soil sensors to measure temperature, water content, and electrical conductivity were set at different depths.In case 1, steadily high concentrations of heavy metals were observed regardless of the depth, and the pH ranged from 2 to 4. In cases 2 and 3, a dramatic decrease in concentrations of heavy metals was observed, even below the neutralization layer. For both cases pH values were circumneutral. There were no significant seasonable changes in heavy metals concentrations and pH of porewater by considering the temperature and precipitation. In addition, the water content of the layers in case 3 fluctuated more mildly than that in cases 1 and 2, indicating that the low permeable layer reduced the rate of infiltration.Therefore, a significant reduction in the load of heavy metals released from the site can be achieved by both implementing neutralization and low permeable layers.

show abstract

Heavy metal adsorption by different minerals: application to the remediation of polluted soils

Cited by 177 publications

References 22 publications

Does ochre have the potential to be a remedial treatment for As-contaminated soils?

Does ochre have the potential to be a remedial treatment for As-contaminated soils?

Modified clays for barriers: a review

Effect of different soil layers on porewater to remediate acidic surface environment at a close mine site

Contact Info

Product

Resources

About