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Tuesday, May 19, 2020 | History

2 edition of Cadmium soil sorption at low concentrations found in the catalog.

Cadmium soil sorption at low concentrations

Thomas H. Christensen

Cadmium soil sorption at low concentrations

by Thomas H. Christensen

  • 272 Want to read
  • 32 Currently reading

Published by Polyteknisk forlag in [Lyngby, Denmark] .
Written in English

    Places:
  • Denmark.
    • Subjects:
    • Cadmium -- Environmental aspects.,
    • Soil absorption and adsorption.,
    • Soil pollution -- Denmark.

    • Edition Notes

      StatementThomas H. Christensen.
      Classifications
      LC ClassificationsTD879.C33 C48 1989
      The Physical Object
      Pagination1 v. (various pagings) :
      ID Numbers
      Open LibraryOL1584078M
      LC Control Number91109373

      Cadmium adsorption by humic acid increased significantly from pH 5 to in low, intermediate, high electrolyte concentrations. Adsorption was greatest at high pH and low electrolyte : Sara Mola Ali Abasiyan. Title: Cadmium soil sorption at low concentrations. IV. Effect of waste leachates on distribution coefficients: Authors: Christensen, Thomas H. Publication.

      Ionic strength and electrolyte cation valence strongly influenced Cd sorption by SWy-1 and the soil smectites. Ion exchange dominated Cd sorption at low ionic strength in Na + electrolyte (I = –). Increasing Na + concentrations to I = or changing the electrolyte cation to Ca 2+ at I = to suppressed ion exchange. When. Cadmium adsorption and desorption behaviour on goethite at low equilibrium concentrations: effects of pH and index cations Author links open overlay panel Ghulam Mustafa a Balwant Singh a Cited by:

      Acta Agriculturae Scandinavica, Section B - Soil & Plant Science Cadmium in the Environment 50 Induction of cadmium-binding peptides in sorghum Toxicological & Environmental Chemistry Cadmium soil sorption at low concentrations: VIII. correlation with soil parameters Water, Air, and Soil Pollution Cadmium adsorption and desorption behaviour on goethite at low equilibrium concentrations: effects of pH and index cations Chemosphere Influence of phosphate on cadmium sorption by calcium carbonate Geoderma Effects of low-molecular-weight organic acids and residence time on desorption of Cu, Cd, and Pb from soils.


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Cadmium soil sorption at low concentrations by Thomas H. Christensen Download PDF EPUB FB2

Cadmium soil sorption at low concentrations. [Lyngby, Denmark]: Polyteknisk forlag, (OCoLC) Material Type: Thesis/dissertation: Document Type: Book: All Authors / Contributors: Thomas Hoejlund Christensen. Cadmium soil sorption at low concentrations: II.

Reversibility, effect of changes in solute composition, and effect of soil aging. Cadmium distribution coefficients, K d were determined at low Cd concentrations (solute: to μg Cd dm−3, soil: to mg Cd kg−1) for 63 Danish agricultural soils. The K d values ranged from 15 to L kg− by: Cadmium soil sorption at low concentrations.

Effect of waste leachates on distribution coefficients. Cadmium soil sorption at low concentrations: V. Evidence of competition by other heavy metals. Not Available Cadmium soil sorption at low concentrations: VIII. correlation with soil parametersCited by:   Sorption of Cd at low concentrations onto two Danish soils (loamy sand, sandy loam) was examined in terms of kinetics and governing factors.

From an environmental point of view soil sorption of Cd is a fast process: More than 95% of the sorption takes place within 10 min, equilibrium is reached in 1 hr, and exposures up to 67 wk did not reveal any long term changes in Cd sorption by:   Sorption of Cd at low concentrations onto 12 Danish soils (coarse sands to sandy loams) was studied with respect to competitive effects of other heavy metals by means of laboratory batch experiments.

Both a mixture of Ni, Co, and Zn and of Cr, Cu, and Pb effectively reduced the sorption of Cd onto the by: Cadmium can be a potential threat to a wide range of biota because (i) it is non-essential and non-metabolic, (ii) it is toxic to humans at concentrations lower than those toxic to plants, (iii) it is more mobile and bioavailable than other metals, and (iv) its effects on humans are by: Cadmium Sorption and Desorption in Soils of index cations on metal sorption as due to dissolved organic matter-metal complexation capacity and its pH dependency.

nasa/ads Cadmium soil sorption at low concentrations: I. Effect of time, cadmium load, pH, and calcium Christensen, Thomas H. Cadmium (Cd) is naturally present in soils at concentrations –1 mg Cd kg −1.

Cadmium is readily available for uptake by food crops and food chain contamination with Cd from contaminated soil has led to effects on kidney functioning in humans, even reaching fatal levels in subsistence farmers who consumed rice from a contaminated area in Japan. Title: Cadmium soil sorption at low concentrations: III.

Prediction and observation of mobility: Authors: Christensen, Thomas H. Publication: Water, Air, and Soil. Soil samples with highest Ni concentrations were analyzed through EXAFS. Competitive Sorption of Nickel and Cadmium in Soils patterns for all soils. Sorption of Ni and Cd correlated well.

In particular, the sorption capacity of soil towards cadmium increases approximately three times per unit increase in pH (Chrinstensen, ), but a limited adsorption is observed at pHpzc (point of zero charge) and at pH values slightly lower than pHpzc (Malandrino et al., ).Cited by: Title: Cadmium soil sorption at low concentrations: I.

Effect of time, cadmium load, pH, and calcium: Authors: Christensen, Thomas H. Publication. Cadmium and lead sorption behavior of selected English and Indian soils. T.H., Cadmium soil sorption at low concentrations, VIII. Correlations with soil.

A Text Book of Soil Chemical. Experimental sorption data from batch tests were evaluated by certain isotherms, which provided main sorption characteristics of soil samples for Cd. The results showed that concentrations of total dissolved cadmium and activity of its free ions in soil solution are influenced, sorbent characteristics, that is particle dimensions in this Size: KB.

The observed sorption in the single metal system is attributed to the high affinity of the alkaline soil for metal ions at low concentrations which then decreases as the metal concentration increases (Sauve et al., ).The heterogeneity of the soil's surface is the most likely explanation for this kind of sorption Cited by: The soil properties and heavy metal concentrations are presented in Table total Cd concentration of the soil sample was mgkg −1, which is more than five times the mgkg −1 limit (pH >dry land) stipulated in the soil environment quality risk control standard for soil contamination of agricultural land published by the Ministry of Ecology and Environment of the Author: Yale Wang, Yingming Xu, Xuefeng Liang, Yuebing Sun, Qingqing Huang, Yunying Peng.

Water, Air and Soil Pollution Publication date: Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Christensen, T. H. (). Cadmium soil sorption at low concentrations: I.

Effect of time, cadmium load, pH, and calcium. Water, Air and Soil Pollution, 21, T.H. ChristensenCadmium soil sorption at low concentrations: effect of time, cadmium loading, pH and Calcium Water, Air Soil Pollu., 21 (), pp.

Google ScholarCited by: Cadmium soil sorption at low concentrations: VIII. correlation with soil parameters Water, Air, and Soil Pollution Bioluminescent Bacterial Biosensors for the Assessment of Metal Toxicity and Bioavailability in Soils Reviews on Environmental Health Schwermetalle in Böden