title: Bio-mitigation of CO(2), calcite formation and simultaneous biodiesel precursors production using Chlorella sp.
abstract: In this study, an attempt was made to use micro-algal system for the production of biodiesel precursors and simultaneous CO(2) mitigation. Chlorella sp. was found to have a higher growth rate as compared to the other algal species tested namely Chlamydomonas sp. and Synnecococcus sp. At different CO(2) concentrations (0.03%, 3%, 10% and 15%), the lipid productivity was 23.0, 20.0 and 27.3mg/L/d respectively. Calcite produced was characterized using FT-IR, SEM and XRD. The FAME in crude biofuel was analyzed by GC-FID that found to contain palmitic acid (C16:0), docosapentaenoic acid (C22:5) and docosahexaenoic acid (C22:6). The calorific value of Chlorella sp. was found to be 29kJ/g which is higher than values reported for fresh water microalgae making it a potential candidate to be used as an alternate fuel.
authors.affiliation: Environmental Health Division, National Environmental Engineering Research Institute, Nagpur, India.
authors.forename: Abhay B
authors.initials: AB
authors.lastname: Fulke
authors.forename: S N
authors.initials: SN
authors.lastname: Mudliar
authors.forename: Raju
authors.initials: R
authors.lastname: Yadav
authors.forename: Ajam
authors.initials: A
authors.lastname: Shekh
authors.forename: N
authors.initials: N
authors.lastname: Srinivasan
authors.forename: Rishiram
authors.initials: R
authors.lastname: Ramanan
authors.forename: K
authors.initials: K
authors.lastname: Krishnamurthi
authors.forename: S Saravana
authors.initials: SS
authors.lastname: Devi
authors.forename: T
authors.initials: T
authors.lastname: Chakrabarti
mesh_terms: D056804:Biofuels; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology; D002119:Calcium Carbonate / Q000378:metabolism*; D002245:Carbon Dioxide / Q000494:pharmacology*; D002708:Chlorella / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism* / Q000528:radiation effects; D002849:Chromatography, Gas; D004952:Esters / Q000032:analysis; D008027:Light; D050356:Lipid Metabolism / Q000187:drug effects; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D056804:Biofuels; D004952:Esters; D002245:Carbon Dioxide; D002119:Calcium Carbonate