Abstract：
:The present study investigates the use of defatted algal biomass (DAB) as a non-conventional low cost adsorbent. The maximum adsorption capacity of biomass (raw, defatted and sulfuric acid pretreated DAB) was determined by liquid phase adsorption studies in batch mode for the removal of methylene blue present at various concentrations (1, 2, 3, 4, and 5 mg L(-1)) from aqueous solutions. The data was well fitted with Langmuir and Freundlich isotherms. The maximum adsorption capacity for raw, defatted and sulfuric acid pretreated DAB was found to be 6.0, 7.73 and 7.80 mg g(-1), respectively. The specific surface area of raw, defatted and sulfuric acid pretreated DAB was estimated to be 14.70, 18.94, and 19.10 m(2) g(-1), respectively. To evaluate the kinetic mechanism that controls the adsorption process, pseudo-first order, pseudo-second order, intraparticle diffusion and particle diffusion has been tested. The data fitted quite well with pseudo-second order kinetic model.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Sarat Chandra T,Mudliar SN,Vidyashankar S,Mukherji S,Sarada R,Krishnamurthi K,Chauhan VSdoi
10.1016/j.biortech.2014.10.018subject
Has Abstractpub_date
2015-05-01 00:00:00pages
395-404eissn
0960-8524issn
1873-2976pii
S0960-8524(14)01430-8journal_volume
184pub_type
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