Above- and below-ground parts of Salix (mixed tissue from S. phylicifolia and S. borealis), Carex rostrata, Eriophorum angustifolium, and Phragmites australis were sampled and analysed for Cd, Cu, Zn, Pb and As. Differences in uptake and translocation properties of the same plant species were observed between field-grown plants and plants grown ...
As Cr Cu Pb Cd Hg Ni Zn PCBs PCDD/Fs PAH Sinter plant 030301 / 040209 1.0 2.9 2.3 2.8 3.2 1.6 1.2 0.8 0.5 15 0 3 GENERAL 3.1 Description of activities The sintering process is a pretreatment step in the production of iron where fine particles of
Sep 15, 2006· While total soil Pb, Cu, and Zn concentrations varied from 90 to 4100, 20 to 990, and 195 to 2200 mg kg 1, those in the plants ranged from 2.0 to 1183, 6.0 to 460, and 17 to 598 mg kg 1, respectively. None of the plants were suitable for phytoextraction because no
In a pot culture experiment, five different species of Brassica (Brassica juncea, Brassica campestris, Brassica carinata, Brassica napus, and Brassica nigra) were grown for screening possible accumulators of heavy metals, viz. Zn, Cu, Ni, and Pb.
Based on the U.S. Environmental Protection Agency's ecological soil screening levels (Eco-SSLs) for Cu, Zn, Ni, Pb, and Cd and the Dutch Target and Intervention Values for Cr and Hg, the plants and soil invertebrates were not likely greatly influenced by the selected metals.
Mar 20, 2007· Various extraction procedures were employed for measuring extractable concentrations of potential toxic elements in soil. The extractability of Cd, Cu, Pb and Zn in four contaminated and four non-contaminated soils of Japan, was compared by single extraction (CaCl2, DTPA, NH4Cl, 0.1 M HCl and 1 M HCl ) and sequential extraction procedures [(six
separately with ﬁve concentrations for Ni, Pb and Zn (be-tween 5 and 100 mg L-1). Shoot and root biomass were determined and analyzed for their metals contents. Results showed that the tested plants were able to uptake Ni, Pb and Zn. Furthermore, roots accumulated more metals than shoots. Ni seems to be more toxic than Zn and Pb. In fact,
Mar 24, 2021· Browse our large selection of new and used screening plants, not to be confused with static grizzly screens, for contractors in the road building, rock mining, aggregate producing, demolition, and recycling industries.Looking for trommel screens? Read More Screeners range from small and compact equipment to heavy-duty, high-output equipment including tracked mobile screening plants
Plants demonstrated differentiated potential on metal accumulation and translocation, and the total Cd, Cu, Pb, and Zn contents in the aerial parts of plants ranged from 5.57 to 268.5, 14.34 to 140.90, 10.43 to 570.3, and 110.3 to 1350 mg kg-1, respectively. Symphytum officinale Linn. distinguished itself from the various plants as a promising ...
Feb 11, 2013· Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, W, and two group-14 metals: Sn, Pb. Thecomputationalcells usedforM-DOBDCandM-HKUST-1 contain, respectively, 54 and 156 atoms; 6 and 12 CO 2 mole-cules were added to these supercells to represent the adsorbed state, corresponding to a coverage of one CO 2 per CUS. For M-DOBDC, the symmetry for
Oct 15, 2019· Water Samples were compared to BTAG Freshwater Region III Screening Levels (August, 2006). The samples that exceeded these limits are highlighted. The sample that exceeds in Cu, Zn, and Pb is located directly west of the Allied Site. The sample that exceeds in Cu, Zn, Pb, and Cd is located directly on the site.
Screening of native plant species from mining sites can lead to identify suitable plants for phytoremediation approaches. In this study, we assayed heavy metals tolerance and accumulation in native and dominant plants growing on abandoned Pb/Zn mining site in eastern Morocco.
The percentage prevalence of Pb, Cr, Ni, and Co, were found while that of As and Cd were 55% and 60% respectively. Atomic absorption spectroscopic data showed the presence of metals in the analyzed samples in the range of 0.00-37.08 microg/dl for As, 8.1-41.4 microg/dl for Pb, 0.0-9.6 microg/l for Cd, 2.0-55.6 microg/l for Cr, 20.0-85.9 ...
Zn, Pb, Cu and Cd concentrations were measured in three types of plants on the upper part of their stems and leaves, and in roots from four different sites along the roadway. The measured concentrations were compared in Figs. 2 and 3. Fig. 2 shows the concentration levels of heavy metals Zn, Pb, Cu and Cd in the stem of Charlock, Inula and ...
In this study, we isolated twenty seven (NF1-NF27) chromium resistant bacteria. The bacteria were tested for heavy metals (Cr, Zn, Cu, Ni, Pb and Co) resistance, Cr(VI) reduction and PGPB characters (phosphate solubilization, production of IAA and siderophores).
Pb, Zn, Cu, Mn, and Fe, respectively. 2.4.2 BCR sequential extraction procedure Soil samples were analysed by the modified BCR three step sequential extraction procedure described by Nemati et al. (2011) and Davutluoglu et al. (2011). Sequential extractions were applied to 1 g of soil samples in 50 mL capacity centrifuge tubes
Plant species that present these adaptations might be useful to mining and other metal pollution restoration programs. This study reports the results for the screening of Ca, Mg, Na, Mn, Fe, Ni, Cu, Zn, As, and Pb in aerial tissues of 97 plant species from the Tinto basin flora.
Aug 17, 2018· Zinc and Cu also reach high levels in chars of non-plant origin (Table 3), with highly significant differences (Figure 2). Differences in concentrations of Cu and Zn of >100-fold are evident comparing poultry litter char A2 and wood char A4.
Environmental and Experimental Botany 47 (2002) 271280 Accumulation properties of As, Cd, Cu, Pb and Zn by four wetland plant species growing on submerged mine tailings
1, Tables 1 and 2). The concentrations of Cd, Cr, Pb and Zn were higher in compost then in parent sludge while the concentrations of Cu and Ni were lower. The degree of change was different for each metal. Cadmium concentrations changed most during composting and
However, toxic HMs (Zn, Cu and Pb) concentrations in treated wastewater from WWTP were above the permissible limits. Although the WWTP was e ective in maintaining most of the wastewater parameters within South African Green drop Standards, the higher Cu, Zn, Pb and COD in its ﬁnal e uent is a concern in terms of Vaal river health and
plants, fish and water were collected from the studied area and analyzed. The concentrations of some elements (K, Ca, Ti, Mn, Fe, Cr, Co, Cu, Ni, Sr, Rb, Na, P, Zn, Br, Y, Zr and Pb) were determined using the following analytical methods; atomic absorption spectroscopy (AAS), X-ray fluorescence (XRF), flame photometry, colorimetry and ultra ...
In Denmark, stationary combustion plants are among the most important emission sources for heavy metals. For Cu, Zn and Pb the emission share from stationary combustion plants is below 50 %, but for all other heavy metals, the emission share is above 50 %. Table s.1 presents the Danish heavy metal emission inventory 2009 for the
May 02, 2011· To characterize the effects of Cd supplies on the accumulation efficiency of Cd, Pb, Zn, and Cu in an ornamental plant (osmanthus, Osmanthus fragrans var. thunbergii ), a pot experiment using current-year osmanthus in field was carried out in western China. Biomass and its components showed a decreasing tendency as Cd supply increased, though insignificant differences were observed between ...
May 01, 2002· Six plants of each species, except for Salix where four plants were used, were mounted in black styrofoam plates and placed in 1 l plastic pots filled with 30% nutrient solution with or without the addition of heavy metals. In metal-treatment pots, the elements given were 0.12 μM Cd, 2.7 μM Cu, 19.8 μM Pb, 42.3 μM Zn and 6.37 μM As.
Metals analysis; Ag, As, Cd, Cr, Cu, Hg, Pb, Ni, Se Chromium > screening level in 2 of 20 soil samples Drinking water well samples - metals below screening
Mar 11, 2005· Electrodialytic remediation (EDR) was used to remove Cu, Zn, Pb, and Cd from contaminated harbor sediment. Extraction experiments were made prior to EDR, and the metal desorption was pH dependent but not liquid-to-solid ratio (L/S) dependent. The desorption order was Cd > Zn > Pb > Cu. Electrodialytic experiments were made with HCl as desorbing agent in a sediment
Feb 01, 2012· Robinia pseudoacacia L. (Fabaceae) was evaluated as a possible bioindicator of airborne heavy metal pollution, which originates from mining and pyrometallurgical copper production in Bor (Eastern Serbia) ncentrations of Cu, Zn, Pb, Cd, As and Hg were determined in different plant organs (washed/unwashed leaves, branches, roots) and topsoil of R.
A total number of 30 plant species (5 aquatic and 25 terrestrial including 6 ferns) were collected and their diversity status and dominance were also studied. After screening of dominant species at highly polluted site, 8 terrestrial and 5 aquatic plants were analyzed for heavy metals (Fe, Zn, Cu, Ni, Si, Al, Pb, Cr, and Cd).
Mar 11, 2005· Electrodialytic remediation (EDR) was used to remove Cu, Zn, Pb, and Cd from contaminated harbor sediment. Extraction experiments were made prior to EDR, and the metal desorption was pH dependent but not liquid-to-solid ratio (L/S) dependent. The desorption order was Cd > Zn > Pb > Cu. Electrodialytic experiments were made with HCl as desorbing agent
(As, Cd, Co, Cr, Cu, Ni, Pb and Zn) SE7. ICP Analysis of Digest or Soil Extracts for 3 Elements or Less SL18. USDA Sand Classes by Sieve Analysis SL19. Custom Sieve Analysis - Specifiy Sieves Below SL20. Microwave Digestion - EPA3051 SL21. Autoblock Digestion - EPA3050 SL22. ICP Analysis of Digest for Routine Element Package
Sep 15, 2020· Based on the concentrations of Pb, Cd, Cu, Zn, Cr, Ni, and As relative to the risk screening values, about 93.6%, 90.3%, 64.5%, 90.3%, 3.2%, 3.2%, and 48.4%, respectively, of the soil sampling sites were higher than the risk screening values, suggesting that these soils may carry risks to the quality and safety of agricultural products.
Plant biomass and TE accumulation patterns in leaves varied greatly between clones. The highest Cd and Zn concentrations in leaves were detected in P. trichocarpa and P. trichocarpa hybrids, with the clone Skado (P. trichocarpa x P. maximowiczii) accumulating up to 108 mg Cd kg(-1) DW and 1510 mg Zn kg(-1) DW when exposed to a multipollution ...
Phylogeny of As, Cd, Cu, Cr, Mn, Ni, Pb, and Zn hyperaccumulators was constructed. Closely-related plants tend to accumulate similar metals excluding Cd and Pb. Plants ability in metal accumulation cannot be predicted via phylogeny except Ni. Screening closely-related plant species help to find new hyperaccumulators.
Dec 06, 2007· The traceelement composition (As, Cd, Cr, Cu, Fe, Ni, Pb, Zn) and P content of aerial parts of plants (12 fern and 2 horsetail species) and of their associated soils were measured. An analysis of the relationship between element concentrations in soil and in shoot revealed a significant correlation only for Zn (p < 0.05).
Stationary combustion plants account for more than 50 % of the national emission for the following pollutants: SO 2, CO 2, heavy metals (except Cu, Pb and Zn), PM 10, PM 2.5, dioxin, HCB and PAH. Furthermore, the emis-sion from stationary combustion plants accounts for more than 10 % of the national emission for the following pollutants: NO
Zinc industry. Umicore Precious Metals Refining offers valuable recovery services to the zinc industry. Typically, primary the zinc industry is concentrating their valuable minor-metals such as Ag, Pb and Cu into saleable by-products. These by-products from the zinc industry are globally sourced by Umicore to recover the valuable metals.
Feb 11, 2015· Resistance of 59 actinobacteria isolates to the five heavy metals (Pb, Cu, Cd, Zn, and Cr) was run, and MIC values were listed in Table 2. According to the obtained data, maximal MIC values were 0.55 mg·mL 1 for Pb, 0.15 mg·mL 1 for Cr and 0.1 mg·mL 1 for Zn, and Cu for Cd; no strain was found to be resistant.
The mineral nutrition of higher plants is of fundamental importance to agriculture and human health. Amongst the minerals required by plants, heavy metal ions such as Cu2+, Zn2+, Mn2+, Fe2+, Ni2+ and Co2+, are essential micronutrients, while other heavy metals like Cd2+, Pb2+ or Hg2+ are nonessential and highly toxic for the cell (Clemens, 2001).
Sep 11, 2003· A 6-month greenhouse pot trial was performed, aimed at screening appropriate Sesbania species for remediation of Pb/Zn and Cu mine tailings. Performances of young seedlings of four Sesbania species (S. cannabina, S. grandiflora, S. rostrata, and S. sesban) were compared with and without inoculation of rhizobia. Seedlings were planted in two types of
Mar 20, 2007· Various extraction procedures were employed for measuring extractable concentrations of potential toxic elements in soil. The extractability of Cd, Cu, Pb and Zn in four contaminated and four non-contaminated soils of Japan, was compared by single extraction (CaCl2, DTPA, NH4Cl, 0.1 M HCl and 1 M HCl ) and sequential extraction procedures [(six operationally defined chemical phases, viz.
Pb/Zn mine tailings also proved that the phyto-toxicity of heavy metals and extreme infertility were the main limiting factors for plant growth (Shu et al. 1997). Phyto-toxicity of tailings inhibited the root vitality of plants, prevented plants from absorbing inorganic nutrients, and significantly inhibited plant growth (Lan et al. 1997; 1998).
The stress-resistant exotic olive, Olea europaea exhibited EF of 0.01 for Cu, Cd, and Pb, and 0.29 for Zn, which is characteristic of an excluder plant. Acacia pycnantha, the Australian pioneer legume species with EF 0.03, 0.80, 0.32, and 0.01 for Cu, Zn, Cd, and Pb, respectively, emerged as another strong metal excluder and consequently as ...
Screening of nutritional and toxic elements in plant-based foods is very important for human health. A reliable solid sampling inductively coupled plasma-mass spectrometry (ICP-MS) method based on the direct introduction of food particle slurries for the simultaneous determination of 16 elements (K, Ca, Mg, Fe, Sr, Zn, Cu, As, Pb, Cr, V, Li, Ti, Rb, Ge, and Ba) was developed.
In the present work, the LIBS technique has been applied to measure the concentrations of selected elements, including Al, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Pb, Sr, and Zn, in two composts of different origin and nature and four accumulator plant species (Atriplex halimus, Brassica alba, Brassica napus, and Eruca vesicaria). The plant samples were ...
Cd, Cu, Pb and Zn in the soils varied from 0.7 to 12.5, 23 to 133, 19 to 359 and 90 to 704 mg/kg, respectively. Generally the concentrations of most metals were 5 to 18 fold higher in the contaminated soils than the non-contaminated soils (Table 1). Metals extractability As expected, 1 M HCl was the most efficient extractant (Table 3).