deeksha ranjan (9 résultats)

Etat : New. pp. 272.

Taschenbuch. Etat : Neu. Biosorptive remediation of arsenic and selenium | Use of agro-industrial byproduct for biosorption and optimization of process variables by Response Surface Methodology | Deeksha Ranjan (u. a.) | Taschenbuch | 272 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844331998 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Arsenic has been a center of controversy in human history since its isolation. Its presence in water, especially in groundwater, has been recognized as a major problem of catastrophic proportions. Its toxicity and health hazards are reported for years. Selenium, though an essential nutrient for human and animal health, shows toxic effects above 400 µg/day. Higher intake in humans results in selenosis and other hazards. Both As and Se enter into water system through geogenic and anthropogenic activities. Technologies reported for remediation of these metal ions from contaminated waters have technical and/ or economical constraints. In this context biosorption is an excellent alternative where materials of biological origin have been utilized to remove metals from water. It is relatively simpler, cost effective and eco-friendly technique. Present work deals with application of agro-industrial byproducts for biosorptive remediation of As and Se using batch as well as continuous modes. Optimization of process variables have been performed by conventional 'one-variable-at- a-time' technique and a multivariate i.e. response surface methodology (RSM) technique. 272 pp. Englisch.

Etat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Ranjan Dr. DeekshaDr. Deeksha Ranjan and Prof. S. H. Hasan, Department of Applied Chemistry, Institute of Technology, Banaras Hindu University, Varanasi, India, are working in the area of treatment of toxic metal bearing water. Th.

Etat : New. Print on Demand pp. 272 2:B&W 6 x 9 in or 229 x 152 mm Perfect Bound on Creme w/Gloss Lam.

Etat : New. PRINT ON DEMAND pp. 272.

Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware -Arsenic has been a center of controversy in human history since its isolation. Its presence in water, especially in groundwater, has been recognized as a major problem of catastrophic proportions. Its toxicity and health hazards are reported for years. Selenium, though an essential nutrient for human and animal health, shows toxic effects above 400 µg/day. Higher intake in humans results in selenosis and other hazards. Both As and Se enter into water system through geogenic and anthropogenic activities. Technologies reported for remediation of these metal ions from contaminated waters have technical and/ or economical constraints. In this context biosorption is an excellent alternative where materials of biological origin have been utilized to remove metals from water. It is relatively simpler, cost effective and eco-friendly technique. Present work deals with application of agro-industrial byproducts for biosorptive remediation of As and Se using batch as well as continuous modes. Optimization of process variables have been performed by conventional ¿one-variable-at- a-time¿ technique and a multivariate i.e. response surface methodology (RSM) technique.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 272 pp. Englisch.

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Arsenic has been a center of controversy in human history since its isolation. Its presence in water, especially in groundwater, has been recognized as a major problem of catastrophic proportions. Its toxicity and health hazards are reported for years. Selenium, though an essential nutrient for human and animal health, shows toxic effects above 400 µg/day. Higher intake in humans results in selenosis and other hazards. Both As and Se enter into water system through geogenic and anthropogenic activities. Technologies reported for remediation of these metal ions from contaminated waters have technical and/ or economical constraints. In this context biosorption is an excellent alternative where materials of biological origin have been utilized to remove metals from water. It is relatively simpler, cost effective and eco-friendly technique. Present work deals with application of agro-industrial byproducts for biosorptive remediation of As and Se using batch as well as continuous modes. Optimization of process variables have been performed by conventional 'one-variable-at- a-time' technique and a multivariate i.e. response surface methodology (RSM) technique.