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Title 

Organic carbon, influent microbial diversity and temperature strongly influence algal diversity and biomass in raceway ponds treating raw municipal wastewater

Authors 

Dae-Hyun ChoR RamananJina HeoZion KangByung-Hyuk KimChi-Yong AhnHee-Mock OhHee-Sik Kim

Publisher 

Elsevier

Issue Date 

2015

Citation 

Bioresource Technology, vol. 191, no. 0, pp. 481-487

Keywords 

AlgaeBiofuelBiovolumeCyanobacteriaMultivariate statistics

Abstract 

Algae based wastewater treatment coupled to biofuel production has financial benefits and practical difficulties. This study evaluated the factors influencing diversity and growth of indigenous algal consortium cultivated on untreated municipal wastewater in a high rate algal pond (HRAP) for a period of 1. year using multivariate statistics. Diversity analyses revealed the presence of Chlorophyta, Cyanophyta and Bacillariophyta. Dominant microalgal genera by biovolume in various seasons were Scenedesmus sp., Microcystis sp., and Chlorella sp. Scenedesmus sp., persisted throughout the year but none of three strains co-dominated with the other. The most significant factors affecting genus dominance were temperature, inflow cyanophyta and organic carbon concentration. Cyanophyta concentration affected microalgal biomass and diversity, whereas temperature impacted biomass. Preferred diversity of microalgae is not sustained in wastewater systems but is obligatory for biofuel production. This study serves as a guideline to sustain desired microalgal consortium in wastewater treatment plants for biofuel production.

ISSN 

0960-8524

Link 

http://dx.doi.org/10.1016/j.biortech.2015.02.013

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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