Dispersed ozone flotation of Chlorella vulgaris

Ya-Ling Cheng; Yu-Chuan Juang; Guan-Yu Liao; Shih-Hsin Ho; Kuei-Ling Yeh; Chun-Yen Chen; Jo-Shu Chang; Jhy-Chern Liu; Duu-Jong Lee

doi:10.1016/j.biortech.2010.07.016

Dispersed ozone flotation of Chlorella vulgaris

Ya-Ling Cheng, Yu-Chuan Juang, Guan-Yu Liao, Shih-Hsin Ho, Kuei-Ling Yeh, Chun-Yen Chen, Jo-Shu Chang, Jhy-Chern Liu, Duu-Jong Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

89 Citations (Scopus)

Abstract

Flotation separation of Chlorella vulgaris, a species with excellent potential for CO₂ capture and lipid production, was studied using dispersed ozone gas. Pure oxygen aeration did not yield flotation. Conversely, applying ozone effectively separation algae from broth through flotation. The ozone dose applied for sufficient algal flotation is <0.05mg/g biomass, much lower than those used in practical drinking waterworks (0.1-0.3mg/g suspended solids). Main products, lipid C16:0, was effectively collected in the flotage phase. The algae removal rate, surface charge, and hydrophobicity of algal cells, and proteins and polysaccharides contents of algogenic organic matter (AOM) were determined. Certain quantities of proteins were present in the cultivated algal suspension, hence, minimal quantity of ozone was required to release intracellular proteins as surfactants to lead to effective flotation. © 2010 Elsevier Ltd.

Original language	English
Pages (from-to)	9092-9096
Journal	Bioresource Technology
Volume	101
Issue number	23
DOIs	https://doi.org/10.1016/j.biortech.2010.07.016
Publication status	Published - Dec 2010
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Research Keywords

Algae
Algogenic organic matters
Flotation
Harvesting
Ozone

Access Output

10.1016/j.biortech.2010.07.016

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{7e775215323d47aab2027452ba20da8a,

title = "Dispersed ozone flotation of Chlorella vulgaris",

abstract = "Flotation separation of Chlorella vulgaris, a species with excellent potential for CO2 capture and lipid production, was studied using dispersed ozone gas. Pure oxygen aeration did not yield flotation. Conversely, applying ozone effectively separation algae from broth through flotation. The ozone dose applied for sufficient algal flotation is <0.05mg/g biomass, much lower than those used in practical drinking waterworks (0.1-0.3mg/g suspended solids). Main products, lipid C16:0, was effectively collected in the flotage phase. The algae removal rate, surface charge, and hydrophobicity of algal cells, and proteins and polysaccharides contents of algogenic organic matter (AOM) were determined. Certain quantities of proteins were present in the cultivated algal suspension, hence, minimal quantity of ozone was required to release intracellular proteins as surfactants to lead to effective flotation. {\textcopyright} 2010 Elsevier Ltd.",

keywords = "Algae, Algogenic organic matters, Flotation, Harvesting, Ozone",

author = "Ya-Ling Cheng and Yu-Chuan Juang and Guan-Yu Liao and Shih-Hsin Ho and Kuei-Ling Yeh and Chun-Yen Chen and Jo-Shu Chang and Jhy-Chern Liu and Duu-Jong Lee",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

year = "2010",

month = dec,

doi = "10.1016/j.biortech.2010.07.016",

language = "English",

volume = "101",

pages = "9092--9096",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd.",

number = "23",

}

TY - JOUR

T1 - Dispersed ozone flotation of Chlorella vulgaris

AU - Cheng, Ya-Ling

AU - Juang, Yu-Chuan

AU - Liao, Guan-Yu

AU - Ho, Shih-Hsin

AU - Yeh, Kuei-Ling

AU - Chen, Chun-Yen

AU - Chang, Jo-Shu

AU - Liu, Jhy-Chern

AU - Lee, Duu-Jong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2010/12

Y1 - 2010/12

N2 - Flotation separation of Chlorella vulgaris, a species with excellent potential for CO2 capture and lipid production, was studied using dispersed ozone gas. Pure oxygen aeration did not yield flotation. Conversely, applying ozone effectively separation algae from broth through flotation. The ozone dose applied for sufficient algal flotation is <0.05mg/g biomass, much lower than those used in practical drinking waterworks (0.1-0.3mg/g suspended solids). Main products, lipid C16:0, was effectively collected in the flotage phase. The algae removal rate, surface charge, and hydrophobicity of algal cells, and proteins and polysaccharides contents of algogenic organic matter (AOM) were determined. Certain quantities of proteins were present in the cultivated algal suspension, hence, minimal quantity of ozone was required to release intracellular proteins as surfactants to lead to effective flotation. © 2010 Elsevier Ltd.

AB - Flotation separation of Chlorella vulgaris, a species with excellent potential for CO2 capture and lipid production, was studied using dispersed ozone gas. Pure oxygen aeration did not yield flotation. Conversely, applying ozone effectively separation algae from broth through flotation. The ozone dose applied for sufficient algal flotation is <0.05mg/g biomass, much lower than those used in practical drinking waterworks (0.1-0.3mg/g suspended solids). Main products, lipid C16:0, was effectively collected in the flotage phase. The algae removal rate, surface charge, and hydrophobicity of algal cells, and proteins and polysaccharides contents of algogenic organic matter (AOM) were determined. Certain quantities of proteins were present in the cultivated algal suspension, hence, minimal quantity of ozone was required to release intracellular proteins as surfactants to lead to effective flotation. © 2010 Elsevier Ltd.

KW - Algae

KW - Algogenic organic matters

KW - Flotation

KW - Harvesting

KW - Ozone

UR - http://www.scopus.com/inward/record.url?scp=77955659286&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-77955659286&origin=recordpage

U2 - 10.1016/j.biortech.2010.07.016

DO - 10.1016/j.biortech.2010.07.016

M3 - RGC 21 - Publication in refereed journal

C2 - 20675123

SN - 0960-8524

VL - 101

SP - 9092

EP - 9096

JO - Bioresource Technology

JF - Bioresource Technology

IS - 23

ER -

Dispersed ozone flotation of Chlorella vulgaris

Abstract

Bibliographical note

UN SDGs

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this