Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater

Scientific Reports
Dae-Hyun ChoRishiram Ramanan

Abstract

It is established that biodiversity determines productivity of natural ecosystems globally. We have proved that abiotic factors influenced biomass productivity in engineered ecosystems i.e. high rate algal ponds (HRAPs), previously. This study demonstrates that biotic factors, particularly microalgal diversity, play an essential role in maintaining stable biomass productivity in HRAP treating municipal wastewater by mutualistic adaptation to environmental factors. The current study examined data from the second year of a two-year study on HRAP treating municipal wastewater. Microalgal diversity, wastewater characteristics, treatment efficiency and several environmental and meteorological factors were documented. Multivariate statistical analyses reveal that microalgae in uncontrolled HRAPs adapt to adverse environmental conditions by fostering diversity. Subsequently, five dominant microalgal strains by biovolume were isolated, enriched, and optimum conditions for high biomass productivity were ascertained. These laboratory experiments revealed that different microalgal strains dominate in different conditions and a consortium of these diverse taxa help in sustaining the algae community from environmental and predatory pressure...Continue Reading

References

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Citations

May 20, 2020·Journal of Phycology·Iris HaberkornAlexander Mathys
Apr 5, 2020·Scientific Reports·Christophe DjemielPierre-Alain Maron
Jul 26, 2018·Environmental Science and Pollution Research International·Fariba RezvaniHee-Mock Oh
May 8, 2020·Antibiotics·Reuben MaghembeRajni Hatti-Kaul
Aug 25, 2020·Journal of Microbiology and Biotechnology·Dae-Hyun ChoSeunghee Bae
Jan 26, 2021·Bioresource Technology·Vishno Vardhan DevadasPau Loke Show
May 11, 2021·Frontiers in Bioengineering and Biotechnology·Lina MattssonCatherine Legrand

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Methods Mentioned

BETA
PCA
PCR
electrophoresis

Software Mentioned

WIN
MEGA
BLASTN
SPSS
ImageJ
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