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Microalgal interstrains differences in algal-bacterial biofloc formation during liquid digestate treatment.

Abstract：

:In this study, the effect of microalgal strains on the formation of algal-bacterial biofloc was investigated in liquid digestate pretreated by a sequencing batch reactor (SBR), which loaded much aerobic bacteria from activated sludge. Six microalgal strains resulted in three cases: no-bioflocculation (Scenedesmus obliquus and Botryococcus braunii), optimal-bioflocculation with high flocculation activity and good growth (Chlorella sp. BWY-1, Haematococcus pluvialis and Dictyosphaerium ehnenbergianum) and over-bioflocculation with high flocculation activity and bad growth (Chlorella vulgaris). Chlorella sp. BWY-1 provided a better level of flocculation activity and growth. Polysaccharides and proteins were present in EPS of algal-bacterial biofloc, and their distribution was confirmed by staining with alcian blue and fluorescein isothiocyanate (FITC).

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Wang H,Qi B,Jiang X,Jiang Y,Yang H,Xiao Y,Jiang N,Deng L,Wang W

doi

10.1016/j.biortech.2019.121741

subject

Has Abstract

pub_date

2019-10-01 00:00:00

pages

121741

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(19)30971-X

journal_volume

289

pub_type

杂志文章

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