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Does Exogenous Carbon Source Always Promote Algal Biomass and Nutrients Removal in Algal-bacterial Wastewater Remediation? by Yuming Zhong; Hui Liu; Huankai Li; Qian Lu; Yan Sun is a Environmental Science article available to read on EtoBox.

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Glycerol is important to algal growth, but it is not necessarily right for all wastewater-borne bacteria, especially the beneficial bacterial flora or beneficial bacterium. This study focuses on the microalgal-bacterial community and interactive network analysis between algae and wastewater-borne bacteria to find beneficial bacteria, then identify the effect of glycerol on a beneficial bacterial strain. Microalgal-bacterial remediation shown better nutrients removal and microalgal biomass in centrate wastewater, and glycerol addition considerably increased biomass but inapparently increase nutrients removal. Pseudomonas sp. and Acinetobacter sp. dominated in algal-bacterial system with and without glycerol. Microbial community and environmental factors formed a linkage network in three cultural modes to find the most vital probiotic. The co-cultivation of microalgae and Pseudomonas aeruginosa as a non-fermentative denitrifying phosphate accumulating organism (DPAO) showed co-cultivation dramatically enhanced biomass yield and nutrients removal efficiencies, especially nitrogen and phosphorous. After adding glycerol, in the late stage of co-cultivation, algal-bacterial consortia col

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Author

Yuming Zhong; Hui Liu; Huankai Li; Qian Lu; Yan Sun

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)