Stabilization of an elevated heavy metal contaminated site

Wang, Y.M.; Chen, T.C.; Yeh, K. J.; Shue, Meei‐Fang

doi:10.1016/s0304-3894(01)00289-8

Cited by 100 publications

(44 citation statements)

References 21 publications

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“…Wang e colegas também identificaram significativa lixiviação de Pb e Cd a até 1,2 m de profundidade em um solo exposto à ação da chuva. 8 A adsorção não específica de Pb na fração F1 foi predominante somente nas amostras altamente contaminadas P5 e P5.1 (Figura 6). Isto não é surpreendente, pois é comumente relatado que adições antrópicas de metais causam incrementos nas frações potencialmente biodisponíveis e solúveis.…”

Section: Chumbounclassified

“…[1][2][3][4][5] Os metais podem adversamente afetar os seres humanos e animais devido aos impactos à fauna do solo, produção agrícola e a qualidade das águas superficiais e subterrâneas. [4][5][6][7][8][9][10][11][12] A empresa Centro Tecnológico de Resíduos S/A (CENTRES) operou no atual município de Queimados (RJ) um pátio de estocagem provisória de resíduos industriais perigosos (Classe I), entre 1987 e 1998. Estes resíduos seriam armazenados somente até a construção pela CENTRES do primeiro aterro de resíduos industriais do Estado do Rio de Janeiro.…”

Section: Introductionunclassified

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Evaluation of the Geochemical Behavior and Environmental Risk of Metals in an Area Impacted by Industrial Waste in Queimados (RJ)

Santelli

2017

Rev. Virtual Quim.

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Areas contaminated with metals may pose a serious risk to public health and the environment. At the end of the 1980s, an installment of temporary storage of hazardous industrial waste was available in the area of the Centro Tecnológico de Residuos (CENTRES), in the municipality of Queimados, state of Rio de Janeiro. Inadequate management of these wastes has had a major environmental impact on the soil in the region. So, in 2009, soils of this company were sampled to be evaluated the mobility, toxicity, bioavailability and environmental risk of Cd, Cr, Cu, Ni, Pb and Zn, sequentially extracting for the geochemistry fractionation (BCR) and metals determinated by ICP OES. The sum of all the geochemical fractions presented a sample P1 is severely contaminated by Zn, and which as P5 and P5.1 samples are contaminated by Cu, Ni, Pb and Zn, that a sample P5.2 is contaminated by Ni, Pb and Zn and that the sample P6 has Ni concentrations exceed the value of industrial research recommended by the Brazilian legislation. Generally, Cd, Ni and Zn are shown as the most mobile metals, due to the enrichment of their concentrations in the soluble and exchangeable fraction of the soil (F1). Pb was only found to be highly soluble and exchangeable in soil samples that were severely contaminated with this metal. On the other hand, Cu and Cr showed to be less mobile, preferring to be adsorbed to the oxidizable fraction of the soil (F3) or to the residue (R), which contains a silica matrix and high crystalline oxyhydroxides. Finally, the risk assessment code (RAC) proved to be a limited measure in overestimating the environmental risk of Cd and Ni and underestimating that of Cu. Keywords: Soil pollution; BCR and environmental risk assessment (RAC). ResumoÁreas contaminadas por metais podem configurar sério risco à saúde pública e ao meio ambiente. No final da década de 1980 foi instalado um pátio de estocagem provisória de resíduos industriais perigosos na área da empresa Centro Tecnológico de Resíduos (CENTRES), no município de Queimados, RJ. A gestão inadequada destes resíduos proporcionou um grande impacto ambiental ao solo da região. Então, em 2009 foram amostrados solos desta empresa para que fossem avaliadas a mobilidade, toxicidade, biodisponibilidade e risco ambiental de Cd, Cr, Cu, Ni, Pb e Zn utilizando extração sequencial para o fracionamento geoquímico (BCR), determinando-se as concentrações destes metais por ICP OES. A soma de todas as frações geoquímicas mostraram que a amostra P1 é severamente contaminada por Zn, que as amostras P5 e P5.1 são contaminadas por Cu, Ni, Pb e Zn, que a amostra P5.2 é contaminada por Ni, Pb e Zn e que a amostra P6 possui concentrações de Ni que ultrapassam o valor de investigação industrial preconizado pela legislação brasileira. Geralmente, o Cd, o Ni e o Zn se mostraram como os metais mais móveis, devido ao enriquecimento das suas concentrações na fração solúvel e trocável do solo (F1). O Pb só se mostrou altamente solúvel e trocável em amostras de solos que foram severamente cont...

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Section: Chumbounclassified

Section: Introductionunclassified

Evaluation of the Geochemical Behavior and Environmental Risk of Metals in an Area Impacted by Industrial Waste in Queimados (RJ)

Santelli

2017

Rev. Virtual Quim.

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“…Many different phosphate reagents have been studied for their effect on lead solubility in several types of contaminated soils and sediments: phosphoric acid (Yang et al 2001), calcium hydrogen phosphate and calcium carbonate (Wang et al (2001), potassium dihydrogen phosphate , limestone, mineral rock phosphate and diammonium phosphate (Basta and McGowen 2004), and powdered hydroxyapatite, and calcium, sodium, potassium and ammonium phosphates (Tardy et al 2003). Several recent studies have also reported that phosphate addition lowered the toxicity of the lead in the contaminated soils, primarily by making it less bioavailable (Yang et al 2001, Davies et al 2002, Hettiarachchi et al 2002, Maenpaa et al 2002.…”

Section: Laboratory Studies With Phosphate Reagentsmentioning

confidence: 99%

“…They reported a reduction in lead bioavailability by 60 percent. Wang et al (2001) used calcium hydrogen phosphate and calcium carbonate to treat a multi-metal contaminated soil. This reduced lead concentration in the TCLP test by 99.8 percent and cadmium, copper, and zinc concentrations by more that 87 percent.…”

Section: Laboratory Studies With Phosphate Reagentsmentioning

confidence: 99%

Treatment and Management of Closed or Inactive Small Arms Firing Ranges

Larson¹,

Teeter²,

Medina³

et al. 2007

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“…For example, soils contaminated with lead (Pb), zinc (Zn) and cadmium (Cd) have been treated in situ with phosphate (P) or biosolids amendments (Basta et al, 2001;Basta and McGowan, 2004;Boisonn et al, 1999;Brown et al, 2004;Cao et al, 2003;Laperche et al, 1996;O'Day et al, 1998;Ryan et al, 2004;Ryan et al, 2001;Scheckel and Ryan, 2004;Scheckel et al, 2005;Wang et al, 2001). The anticipated decrease in metal bioavailability in P-amended soils is attributed to both the rapid kinetics of metal sequestration and the low solubility of metals complexed with P or isomorphically substituted into the apatite structure.…”

Section: Introductionmentioning

confidence: 99%

Speciation and bioavailability of zinc in amended sediments

Williams

Scheckel

McDermott³

et al. 2011

Chemical Speciation & Bioavailability

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The speciation and bioavailability of zinc (Zn) in smelter-contaminated sediments were investigated as a function of phosphate (apatite) and organic amendment loading rate. Zinc species identified in preamendment sediment were zinc hydroxide-like phases, sphalerite, and zinc sorbed to an iron oxide via X-ray adsorption near edge structure (XANES) spectroscopy. Four months after adding the amendments to the contaminated sediment, hopeite, a Zn phosphate mineral, was identified indicating phosphate was binding and sequestering available Zn and Zn pore water concentrations were decreased at levels of 90% or more. Laboratory experiments indicate organic amendments exhibit a limited effect and may hinder sequestration of pore water Zn when mixed with apatite. The acute toxicity of the sediment Zn was evaluated with Hyalella azteca, and bioaccumulation of Zn with Lumbriculus variegates. The survivability of H. azteca increased as a function of phosphate (apatite) loading rate. In contaminated sediment without apatite, no specimens of H. azteca survived. The bioaccumulation of Zn in L. variegates also followed a trend of decreased bioaccumulation with increased phosphate loading in the contaminated sediment. The research supports an association between Zn speciation and bioavailability.

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Stabilization of an elevated heavy metal contaminated site

Cited by 100 publications

References 21 publications

Evaluation of the Geochemical Behavior and Environmental Risk of Metals in an Area Impacted by Industrial Waste in Queimados (RJ)

Evaluation of the Geochemical Behavior and Environmental Risk of Metals in an Area Impacted by Industrial Waste in Queimados (RJ)

Treatment and Management of Closed or Inactive Small Arms Firing Ranges

Speciation and bioavailability of zinc in amended sediments

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