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Title 

Nutrient removal and biofuel production in high rate algal pond using real municipal wastewater

Authors 

Byung-Hyuk KimKang ZionR RamananJong-Eun ChoiDae Hyun ChoHee-Mock OhHee-Sik Kim

Publisher 

The Korean Society for Applied Microbiology

Issue Date 

2014

Citation 

Journal of Microbiology and Biotechnology, vol. 24, no. 8, pp. 1123-1132

Keywords 

Algal consortiumChlorella sp.High rate algal pondMunicipal wastewaterScenedesmus sp

Abstract 

This study evaluated the growth and nutrient removal ability of an indigenous algal consortium on real untreated municipal wastewater in a high rate algal pond (HRAP). The HRAP was operated semicontinuously under different hydraulic retention times (HRT: 2, 4, 6, and 8 days). The average removal efficiencies of chemical oxygen demand, and total nitrogen and phosphate of real municipal wastewater were maintained at 85.44 ± 5.10%, 92.74 ± 5.82%, and 82.85 ± 8.63%, respectively, in 2 day HRT. Algae dominated the consortium and showed high settling efficiency (99%), and biomass and lipid productivity of 0.500 ± 0.03 g/l/day and 0.103 ± 0.0083 g/l/day (2day HRT), respectively. Fatty acid methyl ester analysis revealed a predominance of palmitate (C16:0), palmitoleate (C16:1), linoleate (C18:2), and linolenate (C18:3). Microalgal diversity analyses determined the presence of Chlorella, Scenedesmus, and Stigeoclonium as the dominant microalgae. The algal consortium provides significant value not only in terms of energy savings and nutrient removal but also because of its bioenergy potential as indicated by the lipid content (20-23%) and FAME profiling. ? 2014 by The Korean Society for Microbiology and Biotechnology.

ISSN 

1017-7825

Link 

http://dx.doi.org/10.4014/jmb.1312.12057

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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