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Bücher von Hency Thacker

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  • von Hency Thacker
    34,00 €

    In the present study, activated carbon is fabricated from male and female date palm leaves by chemical activation with phosphoric acid and is further examined for ferric ion removal from waste water. The study revealed that the uptake of ferric ions from aqueous media was found to be dependent on pH, adsorbent dosage, initial concentration, agitation time and temperature. The maximum adsorption capacity for male and female activated carbon was found to 17.2 mg/g and 22.2 mg/g respectively. The optimum conditions for ferric ions uptake from aqueous media by male activated carbon was found to pH=2.5, temperature=298K, initial concentration= 50 mg/L, adsorbent dosage=0.2 gm and agitation time=30 minutes. Similarly for female activated carbon optimum conditions were found to be pH=2.5, temperature=298K, initial concentration= 50 mg/L, adsorbent dosage=0.25 gm and agitation time=30 minutes.

  • von Hency Thacker
    50,90 €

  • von Hency Thacker
    42,00 €

    In the present study, Phoenix Dactylifera L. extract is analyzed for its potential to prevent corrosion of aluminum under 1N HCl acidic media by weight loss measurement. Phoenix Dactylifera L. acetonitrile extract comprised of variety of phytochemicals like proteins, amino acids, carbohydrates, phenols, flavanoids, Phlobatannins, quinines, resins, steroids and triterpenoid. These phytochemicals are adsorbed on the surface of metals plates by means of hetero atom present in them. The adsorption behavior of these phytochemicals on the surface of Al plates is in accordance with langmuir adsorption isotherm. The value of Gibb¿s free energy of adsorption was found to be -7.37 KJ mol-1 indicating spontaneous physisorption of extract molecules on the surface of Al plates.

  • von Hency Thacker
    42,00 €

    Este livro descreve a adsorção de iões cúpricos nas folhas de Phoenix Dactylifera L. é descrito. O fenómeno de adsorção é dependente do pH, dose adsorvente, concentração inicial, temperatura e tempo de agitação. Além disso, este processo foi avaliado por isotermas de adsorção, nomeadamente langmuir, Fruendlich, Temkin, Hasley, Jonovaic e assim por diante. Os modelos cinéticos pseudo primeira ordem, pseudo segunda ordem, Elovich, Intra-partículas de difusão são também avaliados. As condições óptimas para a captação de iões cúpricos foram encontradas a pH=1,5, dose adsorvente =0,2 gm, concentração inicial= 10ppm, tempo de agitação =30 minutos. A adsorção é melhor descrita pelo modelo de isoterma de adsorção Temkin e modelo cinético pseudo de segunda ordem. A capacidade máxima de adsorção foi avaliada como sendo de 2,48 mg/g.

  • von Hency Thacker
    42,00 €

    Questo libro descrive l'adsorbimento di ioni rameici sulle foglie di Phoenix Dactylifera L. Il fenomeno di adsorbimento è risultato dipendente da pH, dose di adsorbente, concentrazione iniziale, temperatura e tempo di agitazione. Inoltre, questo processo è stato valutato mediante isoterme di adsorbimento: langmuir, Fruendlich, Temkin, Hasley, Jonovaic e così via. Sono stati valutati anche i modelli cinetici pseudo del primo ordine, pseudo del secondo ordine, Elovich, diffusione intraparticellare. Le condizioni ottimali per l'assorbimento dello ione rameico sono risultate essere pH=1,5, dose di adsorbente =0,2 gm, concentrazione iniziale= 10ppm, tempo di agitazione =30 minuti. L'adsorbimento è meglio descritto dal modello dell'isoterma di adsorbimento di Temkin e dal modello cinetico del secondo ordine. La capacità massima di adsorbimento è stata valutata pari a 2,48 mg/g.

  • von Hency Thacker
    50,90 €

    In diesem Buch wird die Adsorption von Kupfer-Ionen auf den Blättern von Phoenix Dactylifera L. beschrieben. Es wird festgestellt, dass die Adsorptionsphänomene vom pH-Wert, der Adsorptionsmitteldosis, der Anfangskonzentration, der Temperatur und der Rührzeit abhängig sind. Ferner wurde dieser Prozess mit Hilfe von Adsorptionsisothermen, nämlich Langmuir, Fruendlich, Temkin, Hasley, Jonovaic und so weiter, bewertet. Die kinetischen Modelle pseudo erster Ordnung, pseudo zweiter Ordnung, Elovich und Intrapartikeldiffusion wurden ebenfalls ausgewertet. Die optimalen Bedingungen für die Aufnahme von Kupferionen sind pH = 1,5, Adsorptionsmitteldosis = 0,2 g, Anfangskonzentration = 10 ppm, Rührzeit = 30 Minuten. Die Adsorption wird am besten durch das Temkin-Adsorptionsisothermenmodell und das kinetische Pseudo-Modell zweiter Ordnung beschrieben. Die maximale Adsorptionskapazität wurde mit 2,48 mg/g ermittelt.

  • von Hency Thacker
    42,00 €

    This book describes adsorption of cupric ions on Phoenix Dactylifera L. leaves is described. The adsorption phenomena is found to be dependent on pH, adsorbent dose, initial concentration, temperature and agitation time. Further this process was evaluated by adsorption isotherms namely langmuir, Fruendlich, Temkin, Hasley, Jonovaic and so. Kinetic models pseudo first order, pseudo second order, Elovich, Intra-particle diffusion are also evaluated. The optimum conditions for cupric ion uptake were found to pH=1.5, adsorbent dose =0.2 gm, initial concentration= 10ppm, agitation time =30 minutes . The adsorption is best described by Temkin adsorption isotherm model and pseudo second order kinetic model. The maximum adsorption capacity was evaluated to be 2.48 mg/g.

  • von Hency Thacker
    42,00 €

    En este libro se describe la adsorción de iones cúpricos en hojas de Phoenix Dactylifera L. El fenómeno de adsorción depende del pH, la dosis de adsorbente, la concentración inicial, la temperatura y el tiempo de agitación. Además este proceso fue evaluado por isotermas de adsorción a saber langmuir, Fruendlich, Temkin, Hasley, Jonovaic y así. También se evaluaron los modelos cinéticos de pseudo primer orden, pseudo segundo orden, Elovich y difusión intrapartícula. Las condiciones óptimas para la absorción de iones cúpricos fueron pH = 1,5, dosis de adsorbente = 0,2 gm, concentración inicial = 10 ppm, tiempo de agitación = 30 minutos. La adsorción se describe mejor mediante el modelo de isoterma de adsorción de Temkin y el modelo cinético de pseudo segundo orden. La capacidad máxima de adsorción se evaluó en 2,48 mg/g.

  • von Hency Thacker
    42,00 €

    Cet ouvrage décrit l'adsorption des ions cuivriques sur les feuilles de Phoenix Dactylifera L. Le phénomène d'adsorption est dépendant du pH, de la dose d'adsorbant, de la concentration initiale, de la température et du temps d'agitation. En outre, ce processus a été évalué par des isothermes d'adsorption, à savoir langmuir, Fruendlich, Temkin, Hasley, Jonovaic, etc. Les modèles cinétiques pseudo premier ordre, pseudo second ordre, Elovich, diffusion intra-particulaire sont également évalués. Les conditions optimales pour l'absorption des ions cuivriques ont été trouvées à pH=1.5, dose d'adsorbant =0.2 gm, concentration initiale= 10ppm, temps d'agitation =30 minutes . L'adsorption est mieux décrite par le modèle isotherme d'adsorption de Temkin et le modèle cinétique de pseudo second ordre. La capacité d'adsorption maximale a été évaluée à 2,48 mg/g.

  • von Vijay Ram & Hency Thacker
    39,00 €

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