期刊
BIORESOURCE TECHNOLOGY
卷 135, 期 -, 页码 232-238出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.08.069
关键词
BMP; Biogas yield; Chroococcus sp.; Phycoremediation; Volatile solid reduction
资金
- Ministry of New and Renewal Energy, Govt. of India
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. (C) 2012 Elsevier Ltd. All rights reserved.
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