Cited by 100Adsorption and biosorption for pollutant removalCoagulation and Flocculation StudiesCarbon Dioxide Capture Technologies

Defatted algal biomass as a non-conventional low-cost adsorbent: Surface characterization and methylene blue adsorption characteristics

Sarat Chandra, T., Mudliar, S.N., Vidyashankar, S., Mukherji, S., Sarada, R., Krishnamurthi, K., Chauhan, V.S.·2015·Bioresource Technology

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.

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Crossref · 10.1016/j.biortech.2014.10.018

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Authors
Sarat Chandra, T., Mudliar, S. N., Vidyashankar, S., Mukherji, S., Sarada, R., Krishnamurthi, K., & Chauhan, V. S.
Affiliations
  • Central Food Technological Research Institute (IN)
  • Indian Institute of Technology Bombay (IN)
  • National Environmental Engineering Research Institute (IN)
Corresponding author
Chauhan, V.S.
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2015-05
Volume
184
Pages
395-404
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2038156746
Cited by
100
References
33
Citations by year
2026: 9 · 2025: 7 · 2024: 5 · 2023: 10 · 2022: 7 · 2021: 12 · 2020: 9 · 2019: 7 · 2018: 13 · 2017: 8 · 2016: 9 · 2015: 4
FWCI
5.31
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
  • DSpace (IIT Bombay) (submittedVersion)
Funders
Department of Biotechnology (BT/PR1311/PBD/26/267/2011)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
Keywords
low-cost adsorbent, methylene blue adsorption, dye removal, sulfuric acid pretreatment, adsorption isotherms, Langmuir isotherm, Freundlich isotherm, specific surface area, adsorption kinetics, pseudo-second-order kinetics, intraparticle diffusion, wastewater treatment
MeSH terms
Adsorption, Costs and Cost Analysis, Diffusion, Fatty Acids, Kinetics, Methylene Blue, Models, Theoretical, Solutions, Sulfuric Acids, Surface Properties, Temperature, Spectroscopy, Fourier Transform Infrared, Biomass, Scenedesmus

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