Biosorption lead from aqueous solutions by green algae Spirogyra species: kinetics and equilibrium studies
Gupta, VK; Rastogi, A
HERO ID
165421
Reference Type
Journal Article
Year
2008
Language
English
PMID
| HERO ID | 165421 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Biosorption lead from aqueous solutions by green algae Spirogyra species: kinetics and equilibrium studies |
| Authors | Gupta, VK; Rastogi, A |
| Journal | Journal of Hazardous Materials |
| Volume | 152 |
| Issue | 1 |
| Page Numbers | 407-414 |
| Abstract | Biosorptions the effective method for the removalf heavy metalons from wastewaters. Results are presented showing the sorptionf Pb(II) from solutions by biomassf commonly available, filamentous green algae Spirogyra sp. Batch experiments were conducted toetermine the biosorption propertiesf the biomass andt wasbserved that the maximum adsorption capacityf Pb(II)on was around 140mgmetal/gf biomass at pH 5.0n 100min with 200mg/Lfnitial concentration. Temperature changen the range 20-40egrees C affected the adsorption capacity and the naturef the reaction was found to be endothermicn nature. Uptake kinetics follows the pseudo-second-order model and equilibriums wellescribed by Langmuirsotherm. Isotherms have been used toetermine thermodynamic parametersf the process, viz., free energy change, enthalpy change and entropy change. Various propertiesf the algae, as adsorbent, exploredn the characterization part were chemical compositionf the adsorbent, thermal analysis by TGA, surface area calculation by BET method, surface morphology with scanning electron microscopemages and surface functionality by FTIR. FTIR analysisf algal biomass revealed the presencef amino, carboxyl, hydroxyl and carbonyl groups, which are responsible for biosorptionf metalons. The resultsndicated that the biomassf Spirogyra sp.s an efficient biosorbent for the removalf Pb(II) from aqueous solutions. |
| Doi | 10.1016/j.jhazmat.2007.07.028 |
| Pmid | 17716814 |
| Url | http://linkinghub.elsevier.com/retrieve/pii/S0304389407009946 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | Algae, Green/ metabolism; Hydrogen-Ion Concentration; Kinetics; Lead/ metabolism; Microscopy, Electron, Scanning; Solutions; Temperature; Thermodynamics; Water |
| Is Qa | No |
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