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  • Molybdenum  (2)
  • adsorption  (2)
  • 1
    Digitale Medien
    Digitale Medien
    Influence of sulphur on the yield and concentration of copper, manganese, iron and molybdenum in berseem (Trifolium alexandrinum) grown on two different soils (1980)
    Springer
    Plant and soil 56 (1980), S. 229-234 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Berseem yield ; Copper ; Iron ; Manganese ; Molybdenum ; Concentrations ; Sulphur effect
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract A screen-house experiment with 0, 25, 50 and 75 ppm S was conducted to study the effect of S on the yield and, Mn, Cu, Fe and Mo concentrations of berseem (Trifolium alexandrinum) at three stages of growth in a normal and reclaimed soil. Higher levels of S decreased the yield in both the soils. Yield in normal soil was much higher than in reclaimed soil. Application of S increased Cu, Mn, and Fe concentrations in all cuts in both soils. Molybdenum concentration was lowered following S application in both the soils in all the cuts. Molybdenum content increased with the stage of plant growth.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02205851
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  • 2
    Digitale Medien
    Digitale Medien
    Effect of Cu and Mo on Cu/Mo ratio and their concentration in different organs of cowpeas (Vigna sinensis L.) (1980)
    Springer
    Plant and soil 56 (1980), S. 235-241 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Cowpeas ; Copper ; Cu/Mo ratio ; Molybdenum
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract In a Typic Torripsamments (loamy sand) soil, 4 levels each of Cu and Mo,viz, 0, 5, 10 and 20; and 0, 0.5, 1.0 and 2.0 ppm, respectively, were added to study Cu−Mo relationship in cowpeas in a screen-house. Application of Mo reduced Cu content andvice versa in leaves, stems and roots of cowpeas. Stems accumulated more of Mo and Cu than leaves and roots, showing thereby, that it might be the site of interaction for Mo and Cu. Molybdenum increased to a toxic level in plant (for animals) following its application. Cu/Mo ratio was narrowed with Mo and widened with Cu addition. It was either more than 2∶1 or less which suggested that Mo would cause Cu deficiency and Cu in the absence of Mo would be toxic to ruminants.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02205852
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  • 3
    Digitale Medien
    Digitale Medien
    Kinetic parameters for the removal of lead and chromium from wastewater using activated carbon developed from fertilizer waste material (1996)
    Springer
    Environmental modeling and assessment 1 (1996), S. 281-290 
    Details
    ISSN: 1573-2967
    Schlagwort(e): Activated carbon ; lead ; chromium ; adsorption ; adsorbent ; wastewater treatment ; low cost adsorbent
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract The waste slurry generated in fertilizer plants in India has been converted into a cheap carbonaceous adsorbent material. The prepared adsorbent has been characterised and used for the removal of lead and chromium metals. The kinetics of adsorption and the extent of adsorption at equilibrium are dependent on the physical and chemical characteristics of the adsorbate, adsorbent and experimental system. Results of laboratory scale studies conducted to delineate the effect of such parameters on the kinetics of adsorption of metal ions are reported. Parameters evaluated include: hydronium ion concentration, temperature, initial adsorbate concentration, size of adsorbent, and amount of adsorbent. On the basis of these studies the various physical parameters such as effective diffusion coefficient, activation energies and entropy of activation are evaluated, as these provide some information regarding the mechanistic aspects. Mass transfer coefficient values suggest a rapid transport of the adsorbate from bulk to solid phase.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01872156
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  • 4
    Digitale Medien
    Digitale Medien
    Utilization of bagasse fly ash generated in the sugar industry for the removal and recovery of phenol and p-nitrophenol from wastewater (1998)
    Chichester : Wiley-Blackwell
    Journal of Chemical Technology AND Biotechnology 71 (1998), S. 180-186 
    Details
    ISSN: 0268-2575
    Schlagwort(e): bagasse fly ash ; phenols ; adsorption ; waste utilization ; wastewater treatment ; sugar industry ; Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Bagasse fly ash, a waste generated in local sugar industries, has been converted into a low cost adsorbent. The product so obtained has been characterized and used for the removal of phenol and p-nitrophenol. Investigations include the effect of pH, sorbent dosage, phenol concentration and the effect of surfactants on the uptake of phenol and p-nitrophenol. The adsorption data follow both Langmuir and Freundlich models. Isotherms have also been used to obtain the thermodynamic parameters of the process. Some experiments have also been performed with a view to recover phenols and have in-situ chemical regeneration of the spent carbon column. © 1998 SCI.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
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