Use of marble cutting sludges for remediating soils and sediments contaminated by heavy metals

2010 ◽  
Vol 30 (4) ◽  
pp. 533-539 ◽  
Author(s):  
Carmen Pérez-Sirvent ◽  
María Luz García-Lorenzo ◽  
María José Martínez-Sánchez ◽  
José Molina-Ruiz ◽  
Jorge Marimon ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Soils And Sediments

Heavy metals analysis of water, soils and sediments along the Oued Boufekrane river (central Morocco) using WD-XRF and ICP-AES

2003 ◽  
Vol 107 ◽  
pp. 207-210 ◽  
Author(s):  
M. Bounakhla ◽  
M. Tahri ◽  
F. Benyaïch ◽  
F. Zahry ◽  
E. Bilal ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Soils And Sediments

Environmental Contamination of Heavy Metals and Effects of Sediment Bacteria on Cadmium Speciation in the Vicinity of the Hwacheon Mine

2005 ◽  
Vol 277-279 ◽  
pp. 438-444 ◽  
Author(s):  
Sung Eun Lee ◽  
Jin Soo Lee ◽  
Hyo Taek Chon
Keyword(s):  
Heavy Metals ◽  
Rainy Season ◽  
Heavy Metal Contamination ◽  
Metal Sorption ◽  
Bacterial Strains ◽  
Indigenous Bacteria ◽  
Soils And Sediments ◽  
Single Solution ◽  
Cadmium Speciation ◽  
High Concentrations

In order to investigate the extent and degree of heavy metal contamination in soils and sediments influenced by past mining activities, and to estimate the effects of indigenous bacteria on Cd speciation and bioremoval efficiency in sediments according to the various environmental conditions, tailings, soils, waters and sediments were collected from the Hwacheon Au-Ag-Pb-Zn mine in Korea. Elevated levels of metals, i.e., 29 As mg/kg, 30 Cd mg/kg, 261 Cu mg/kg, 601 Pb mg/kg and 3128 Zn mg/kg were found in sediments. High concentrations of As and other heavy metals in soils, waters and sediments were found near the tailings piles. From the results of sequential extraction analyses with tailings and soils, a high proportion of Cd is present as non-residual fractions. This indicates that Cd is more mobile and bioavailable than Cu, Pb and Zn. For seasonal variation, the concentrations of As and other heavy metals were much more elevated in soils collected before rainy season than after rainy season. To estimate the bioremoval efficiency for Cd, bacteria which can adsorb Cd were isolated from sediments in this area. Microorganisms in sediments can alter the mobility of heavy metals and bacteria can leach heavy metals from sediments, adsorb them on their cell wall and accumulate them within an intracellular matrix. From the metal sorption tests with indigenous bacteria, the bioremoval efficiency of Cd in Cd single solution (10 ppm) was more than 90%. As well, the isolated bacterial strains exhibited a preferential metal sorption , i.e., Cd > Pb > Zn for single metal solutions and Pb > Cd > Zn for the mixed metal solutions. Therefore, the use of some microorganisms to remove heavy metals from contaminated sediments may represent an innovative purification process.

scholarly journals Environmental Geochemical Assessment of Heavy Metals in Soil and Sediment of (Shatt-Al-Hilla) Babil Governorate, Central Iraq

2019 ◽  
Vol 60 (5) ◽  
pp. 1055-1068
Author(s):  
Mansour Hussain Manea ◽  
Balsam Salim. Al-Tawash ◽  
Younus I. Al-Saady
Keyword(s):  
Heavy Metals ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Exchange Capacity ◽  
Geochemical Background ◽  
Degree Of Contamination ◽  
Sediment Samples ◽  
Low Degree ◽  
Soils And Sediments ◽  
Soil And Sediment

Heavy metals concentration in the soils and sediments has increased worldwide during the last century as a result of the rapid increase in population which combined by an increase in human activity as agriculture,  industrial and many other activities. Ten soil and three river sediment samples were collected from 10 main sampling stations at Shatt Al-Hilla River from Sada area to Dora Bridge in Babylon province. The chemical analysis of the sedimentation sample in the laboratory included pH calculation, electrical conductivity (EC) (Cation Exchange Capacity (CEC), organic matter (OM), and heavy metals as (Mn, Ni, Cr, Zn, Cu, Co, Pb, Cd, As and Fe). Indirect geochemical background (IGB) of heavy metal was calculated by the iterative 2 standard deviations (SD) method. The results of enrichment factor for heavy metals of the soil and sediment show that the all heavy metals in the studied samples were within Ef<2 indicate to depletion to minimal enrichment (i.e. no or minimal pollution). While Cd in the sample (5), Co in the sample (7), Cr in the sample (8) and Mn in the sample (1S) are within 2 ≤ EF < 5 indicate to Moderate enrichment. Contamination factor (Cf) for heavy metals of soil and sediment show that the all heavy metals in the studied samples were within Cf < 1 -Low contamination. While Sample "2" (Cd, Fe), sample "3" (Ni, Cr, Pb, and Cd), sample "4" (Mn, Fe) and sample "8" (Cr) are within 1 ≤ Cf < 3 moderate contamination. Pollution load index result of all the soil and sediment samples are less than one indicate that  "no pollution" are present, except sample 3 where the PLI value higher than 1 indicates the samples have been "polluted ". The modified degree of contamination (mCd) data indicate nil to a low degree of contamination for all of the soil and sediments samples.

scholarly journals Distribution and contamination assessment of heavy metals in soils and sediments from the Fildes Peninsula and Ardley Island in King George Island, Antarctica

2021 ◽  
Vol 40 ◽  
Author(s):  
Jing Lin ◽  
A.B.M. Sadique Rayhan ◽  
Yun Wang ◽  
Zhai Wu ◽  
Yan Lin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Principal Component ◽  
Absorption Spectrometry ◽  
Pollution Load Index ◽  
Contamination Assessment ◽  
Fildes Peninsula ◽  
Metal Pollutants ◽  
Soils And Sediments ◽  
Accumulation Index ◽  
Heavy Metal Pollutants

Concentrations of heavy metals (Cu, Pb, Zn, Cd and Cr) in surface soils and sediments collected in 2008 from 37 sampling sites in the Fildes Peninsula and Ardley Island were detected by atomic absorption spectrometry. The total contents of Cu, Pb, Zn, Cd and Cr ranged, respectively, from 61.36 to 562.2 mg/kg, 0.52 to 1.95 mg/kg, 54.61 to 577.9 mg/kg, 0.04 to 3.76 mg/kg and 6.83 to 25.9 mg/kg in soils and from 58.55 to 498.3 mg/kg, 0.60 to 2.51 mg/kg, 56.22 to 345.9 mg/kg, 0.07 to 5.77 mg/kg and 7.76 to 39.5 mg/kg in sediments. The geo-accumulation index and the pollution load index were calculated to evaluate the environmental effects of heavy metal pollutants, Cu, Zn and Cd, in the study area. Soils and sediments from Ardley Island were found to be moderately polluted with the studied metals. Pearson’s correlation analysis and principal component analysis were applied to assess the distribution pattern and potential source of heavy metals. The results suggest that Cu, Zn and Cd in the study area originated from both the lithogenic sources and penguin guano, while Pb and Cr were probably derived from lithogenic sources.

Bioavailability and bioaccumulation of heavy metals of several soils and sediments (from industrialized urban areas) for Eisenia fetida

2018 ◽  
Vol 635 ◽  
pp. 1317-1330 ◽  
Author(s):  
C. Coelho ◽  
C. Foret ◽  
C. Bazin ◽  
L. Leduc ◽  
M. Hammada ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Urban Areas ◽  
Eisenia Fetida ◽  
Soils And Sediments
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