alexa Phycoremediation and biogas potential of native algal isolates from soil and wastewater.


Journal of Membrane Science & Technology

Author(s): Prajapati SK, Kaushik P, Malik A, Vijay VK

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Abstract The present study is a novel attempt to integrate phycoremediation and biogas production from algal biomass. Algal isolates, sp. 1 and sp. 2, obtained from wastewater and soil were evaluated for phycoremediation potential and mass production. The estimated yield was 58.4 sp. 1 and 54.75 sp. 2 tons ha(-1) y(-1). The algal isolates reduced COD by >70\% and NH3-N by 100\% in unsterile drain wastewater. Higher productivities of sp. 1 (1.05 g L(-1)) and sp. 2 (0.95 g L(-1)) grown in wastewater compared to that grown in nutrient media (0.89 g L(-1) for sp. 1 and 0.85 g L(-1) for sp. 2) indicate the potential of algal isolates in biogas production through low cost mass cultivation. Biogas yield of 0.401-0.487 m(3) kg(-1) VS added with 52-54.9\% (v/v) methane content was obtained for algal isolates. These results indicate the possibilities of developing an integrated process for phycoremediation and biogas production using algal isolates. Copyright © 2012 Elsevier Ltd. All rights reserved. This article was published in Bioresour Technol and referenced in Journal of Membrane Science & Technology

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