The uptake and distribution of four heavy metals, including copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn), and those of total phosphorus (TP) in 30 plants in North China were investigated ...
The chemical associations of Cd, Cu, Pb, and Zn in four mine soil samples from the Amizour-Bejaia Pb/Zn mine (Algeria) have been investigated by a five-step sequential extraction procedure. Although Cd preferentially binds to carbonates, Cu, Pb, and Zn are mainly associated with the organic and reducible fractions. Batch adsorption …
Soils at a depleted copper mine in Touro (Galicia, Spain) are physically and chemically degraded and have also polluted the surrounding area. Due to these environmental problems and the large area of these mine soils, the reclamation strategies carried out at Touro have consisted of planting trees (pine or eucalyptus), amending with …
Accumulation of Pb, Cd, Cu and Zn in plants and hyperaccumulator choice in Lanping lead–zinc mine area, China. Author links open overlay panel Zu Yanqun b, Li ... About the site of Lanping Pb–Zn mine, East longitude is 96°58′–99°38′, North latitude is 26°0′–27°05′, the altitude is 2430–2790 m, annual average temperature is ...
jesc.ac 1470 LIU Xiaohai et al. Vol. 20 Cu, and Zn hyperaccumulators have been found recently in temperate as well as in tropic regions throughout the plant kingdom, but it is generally restricted to endemic species growing on mineralized soils and related rock types (Baker and Brooks, 1989). There are abundant metal resources in Yunnan Province, …
This paper presents the first tests of Cu (7875 mg/kg), Pb (1414 mg/kg) …
Purpose Soil washing with chelators is a viable treatment alternative for remediating multi-contaminated soils. The aim of this study was to investigate the removal efficiencies of Cd, Zn, Pb, and ...
In this study, heavy metals are removed by soil washing from soils contaminated with Cu, Zn, and Pb, whose maximum concentrations are up to 3350, 1220, and 2240 mg/kg, respectively.
Changes in the fractionation behavior of heavy metals in the amended and unamended sediments are shown in Fig. 1.Specifically, Cu in the untreated contaminated sediment was mainly associated with the organic fraction (50.7%), followed by the carbonate fraction (25.9%), the residual fraction (19.7%), the Fe-Mn oxyhydroxides …
Plants and the associated soil samples were collected and analyzed for total metal concentrations. While total soil Pb, Cu, and Zn concentrations varied from 90 to 4100, 20 to 990, and 195 to 2200mg kg(-1), those in the plants ranged from 2.0 to 1183, 6.0 to 460, and 17 to 598mg kg(-1), respectively. ...
Specifically, BR can be used to efficiently remove As, Cu, Cd, Pb, and Zn from mine tailings and highly contaminated acidic soil via precipitation due to its high pH [29, [31][32][33]. Most ...
Metal pollution in urban soils due to smelting and electroplating has become a severe problem in China. In this study, the concentration, chemical fraction, and leaching behavior of typical metals (Cu, Zn, Cd, and Pb) in soil samples from ten metallurgical sites were studied. The results show that some of the soils were polluted with Cu and most …
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. Soil samples and native …
The absorption and accumulation of Pb, Zn, Cu and Cd in some endurant weed plant species that survived in an old smeltery in Liaoning, China, were systematically investigated. Potential hyperaccumulative characteristics of these species were also discussed. The results showed that metal accumulation in plants differed with species, …
Due to the inappropriate disposal of waste materials containing lead (Pb) and irrigation with sewage containing Pb, the migration of Pb 2+ within the soil profile has been extensively investigated. The conventional Pb 2+ block method is challenging to implement due to its complex operational procedures and high construction costs. To …
Medicago sativa shows potential for stabilizing mine tailings contaminated …
The paper presents the results of a laboratory investigation conducted for assessing the feasibility of immobilising the heavy metals (As, Cd, Cu, Pb and Zn) contained in a disused mine tailings dam. Samples of tailings were mixed with relatively small proportions of bauxite red mud and power statio …
three types of washing agents for the study of heavy metal removal eciency. The study aimed to (i) investigate the release behavior of Cu, Zn, and Pb from contaminated soils under dierent pH conditions and simulated inter-root environment solution; (ii) study the eectiveness of various washing agents in removing heavy metals
The influence of different pH conditions and simulated inter-root environmental solutions on the release behavior of heavy metals (Cu, Pb, and Zn) from contaminated soils was investigated. The results indicate that heavy metal leaching from the soil is more likely to occur under acidic conditions and there is a risk of sustained …
A field survey of higher terrestrial plants growing on Lanping lead-zinc mine, China were conducted to identify species accumulating exceptionally large concentrations of Pb, Cd, Cu and Zn of 20 samples of 17 plant species. Concentrations of Pb and Zn in soil and in plant were higher than that of Cu …
A similar trend was observed for Pb in plants, e.g., the maximum accumulation (2347 mg kg −1) in C. rubrum at site HN-4 and minimum in Z. candida (0.26 mg kg −1) at site HN-3. Unlike Cr, Cu, Cd, and Pb, the maximum Zn concentration was not found in plants at site HN-4 or HN-5, but in A. philoxeroides (365 mg kg −1) at site HN-3
This study was conducted to assess the potential of 19 plants growing on contaminated sites in Pb mine area. Plants and associated soil samples were collected and analyzed for total metal concentrations. While total soil Pb, Cu and Zn concentrations varied from 1,239 to 4,311, 36 to 1,020 and 240 to 2,380 mg/kg, those in the plant shoots ranged ...
HMs are resistant to degradation, and if plants do not absorb them or leach them out, they can accumulate in the soil and last for a very long time [[12], [13], [14]]. High quantities of elements that commonly contaminate agricultural soils and have detrimental effects on plants include Ni, Cd, Hg, Cu, Cr, As, Pb, and Zn [12, 15].
A field survey of higher terrestrial plants growing on Lanping lead-zinc mine, China were conducted to identify species accumulating exceptionally large concentrations of Pb, Cd, Cu and Zn of 20 ...
The influence of different pH conditions and simulated inter-root environmental solutions on the release behavior of heavy metals (Cu, Pb, and Zn) from contaminated soils was investigated.
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In recent years, perovskite-based solar cells have been promoted as a standalone technology for large-scale energy production and portable electronics, but these make use of lead salts (Zou et al., 2018).Other modern sources of lead are batteries (Hollingsworth and Rudik, 2021), leaded gasoline for aviation and automotive racing …
Simultaneous competitive adsorption behavior of Cd, Cu, Pb and Zn onto nine soils with a wide physical–chemical characteristics from Eastern China was measured in batch experiments to assess the mobility and retention of these metals in soils. In the competitive adsorption system, adsorption isotherms for these metals on the soils …
Under optimal conditions, high-pressure soil washing attained removal efficiencies of Cu (37.7%), Pb (36.6%), and Zn (45.1%), and the residual concentrations of heavy metals in the remediated soil ...
This paper presents the first tests of Cu (7875 mg/kg), Pb (1414 mg/kg) and Zn (566 mg/kg) removal from contaminated soil with sewage-sludge–derived washing agents (SS_WAs) (dissolved organic ...
Purpose Soil washing with chelators is a viable treatment alternative for remediating multi-contaminated soils. The aim of this study was to investigate the removal efficiencies of Cd, Zn, Pb, and Cu in alkaline and acid multi-metal-contaminated soils by washing with the mixed chelators (MC). Materials and methods The batch experiments …
Flotation with NBs, generated in the presence of a frother, could be …
