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Combining small-scale screening methods to predict microorganism floatability

delete2019-11-01
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PRE
AI
S
S.J. Gulden
C
C. Riedele
S
Sandra Müeller
M
Michael Kopf
H
H. Nirschl *
DOI:10.1016/j.ces.2019.07.027delete
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Abstract

Abstract

En 中文
Flotation is a common physico-chemical solid-liquid separation technology. It is applied in classical fields like minerals processing, pulp deinking and wastewater treatment and novel fields like biotechnology. The success of flotation is influenced by flotation key parameters. The aim of this study was to present a set of small-scale screening methods for the key flotation parameters particle size, particle hydrophobicity, bubble size and direct particle-bubble interaction. Experiments were performed with the model microorganism S. cerevisiae. Flotation was done in complex fermentation media and in isotonic saline, at varying pH and after flocculant addition. The goal, to combine small-scale laboratory methods to explain, predict and optimize yeast flotation results was achieved. Combining the methods can be used prospectively for wide screening of potential flotation additives, such as collectors, frothers and flocculants and to optimize microorganism floatability. (C) 2019 Elsevier Ltd. All rights reserved.
Keywords:
Flotation
Small-scale screening
Microorganism
Particle size
Hydrophobicity
Bubble-particle interaction forces
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Journal

Chemical Engineering Science cover
Chemical Engineering Science
IF:
4.3
Papers:
2.2W
Citations:
5.5W

Organization

B
BASF
Scholars:
3.3K
Papers: 2.6K
Citations: 6
H
Helmholtz Association
Scholars:
13.2W
Papers: 10.7W
Citations: 145