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Engineering Consulting

Engineering Consulting

Engineering consulting makes clients have a comprehensive understanding of the value of mine, the useful…
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Installation And Commission

Installation And Commission

installation and commission is key link of realizing dressing test, mine design, and equipment manufacture,…
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Mine Design

Mine Design

The key of mine design is all must be established on the basis of detailed investigation, and therefore…
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Mineral Dressing Test

Mineral Dressing Test

The clients should provide about 50g representative samples, some special samples about 200~1000g. The…
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Equipment Manufacture

Equipment Manufacture

Equipment manufacture is in the charge of Xinhai mine production plants that covers an area of 100 mu,…
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Designed Capacity Reached

Designed Capacity Reached

The target reached of Xinhai EPC includes expected recovery rate reached, design capacity for clients…
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Personnel Training

Personnel Training

It is simultaneous for worker training and installation and commission in order to save time and cost.…
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Comparative Study of Heavy Metals in Soil and Selected

Essential and nonessential heavy metals like iron (Fe), nickel (Ni), manganese (Mn), zinc (Zn), copper (Cu), cadmium (Cd), chromium (Cr), and lead (Pb) were analyzed in four selected medicinal plants such as <i>Capparis spinosa, Peganum harmala, Rhazya stricta,</i> and <i>Tamarix articulata</i> by flame atomic absorption spectrophotometer (FAAS). These medicinal plants are extensively used as

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Mobile forms and migration ability of Cu, Pb and Zn in

The total concentrations of Cu, Pb and Zn and their bioavailability were studied in forest soil and vegetative communities (grass and wild strawberries) collected from two areas (A and B). Two single extraction methods were used for the evaluation of the availability of Cu, Pb and Zn in forest soils. The total metal concentrations ranged from 27.43 to 143.34 mg/kg for Zn, 49.82 to 95.84 mg/kg

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Lead and Copper Rule Drinking Water Requirements for

Long Term Revisions
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Distribution, bioavailability, and potential ecological

In addition, Cu, Pb, and Zn concentrations in soil in the study area are compared with the background values of Cu (21.50 mg/kg), Pb (19.10 mg/kg), and Zn (56.30 mg/kg) for soils in Ningxia, suggesting minimal anthropogenic impacts on soil metal status (Pichtel et al. 1997, Tao and Liu 2000). Álvarez et al. stated that highly increased levels

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Critical risk analysis of metals toxicity in wastewater

A strong positive correlation was found among wastewater and crops toxic metals (r2 values in Cu, Zn, Pb, Ni and Cr were 0.913, 0.804, 0.752, 0.694, 0.587 respectively).

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Zn, Ni, Mn, Cr, Pb and Cu in soiltea ecosystem: The

In our study, the P value of F test of model for Zn, Ni, Pb and Cu were all more than 0.05, and the P value of ttest were all more than 0.05, too. The results indicated that the concentration of Zn, Ni, Pb and Cu in soil had no significant influence on their accumulation in tea leaves.

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Sources of Cd, Cu, Pb and Zn in biowaste ScienceDirect

The Cd, Cu, Pb and Zn content of the organic fraction >1 mm is in the same range as the natural background content of heavy metals in indoor and outdoor organic matter ( Table 5 ). The organic material within the size range 0.051 mm most probably originates from the