Treating high-strength saline piggery wastewater using the heterotrophic cultivation of Acutodesmus obliquus

Hyun Chul Kim; Wook Jin Choi; A. Na Chae; Joonhong Park; Hyung Joo Kim; Kyung Guen Song

doi:10.1016/j.bej.2016.02.011

Treating high-strength saline piggery wastewater using the heterotrophic cultivation of Acutodesmus obliquus

Hyun Chul Kim, Wook Jin Choi, A. Na Chae, Joonhong Park, Hyung Joo Kim, Kyung Guen Song

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

This study combined an algae treatment with post-ozonation for the robust treatment of piggery effluent in which high levels of organic constituents, inorganic nutrients, color, and salts remained. Due to a nearly complete light limitation resulting from a high level of color, the algae treatment was conducted with continuous O₂ supplementation instead of using the combination of high lighting and CO₂ injection. The microalga Acutodesmus obliquus KGE-17 showed tolerance to high salinity (up to 5.2% as chloride) and was capable of utilizing dissolved organics (1923 mg-COD/(g-cell)(day)) under the heterotrophic growth conditions. The use of A. obliquus for remediation of piggery effluent also resulted in an operational simplicity in the simultaneous removal of nitrogen and phosphorus in a single treatment process, in contrast to conventional biological nutrient removal processes. Subsequent ozonation was successful in decolorizing the algae-treated wastewater and in improving the biodegradability of residual organics in post-treatment processes.

Original language	English
Pages (from-to)	51-58
Number of pages	8
Journal	Biochemical Engineering Journal
Volume	110
DOIs	https://doi.org/10.1016/j.bej.2016.02.011
Publication status	Published - 2016 Jun 15

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Science and Technology (KIST) Institutional Program ( 2E26300 ), the Eco-Innovation Technology Development Project (Grant no. 405-112-037 ) funded by the Ministry of Environment , and the R&D Program for Society of the National Research Foundation (NRF) funded by the Ministry of Science , ICT and Future Planning ( 2014M3C8A4030496 ), South Korea . This research was also partially supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science , ICT and Future Planning ( 2015R1A2A2A03005744 ).

Publisher Copyright:
© 2016 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Biotechnology
Bioengineering
Environmental Engineering
Biomedical Engineering

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10.1016/j.bej.2016.02.011

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title = "Treating high-strength saline piggery wastewater using the heterotrophic cultivation of Acutodesmus obliquus",

abstract = "This study combined an algae treatment with post-ozonation for the robust treatment of piggery effluent in which high levels of organic constituents, inorganic nutrients, color, and salts remained. Due to a nearly complete light limitation resulting from a high level of color, the algae treatment was conducted with continuous O2 supplementation instead of using the combination of high lighting and CO2 injection. The microalga Acutodesmus obliquus KGE-17 showed tolerance to high salinity (up to 5.2% as chloride) and was capable of utilizing dissolved organics (1923 mg-COD/(g-cell)(day)) under the heterotrophic growth conditions. The use of A. obliquus for remediation of piggery effluent also resulted in an operational simplicity in the simultaneous removal of nitrogen and phosphorus in a single treatment process, in contrast to conventional biological nutrient removal processes. Subsequent ozonation was successful in decolorizing the algae-treated wastewater and in improving the biodegradability of residual organics in post-treatment processes.",

author = "Kim, {Hyun Chul} and Choi, {Wook Jin} and Chae, {A. Na} and Joonhong Park and Kim, {Hyung Joo} and Song, {Kyung Guen}",

note = "Funding Information: This work was supported by the Korea Institute of Science and Technology (KIST) Institutional Program ( 2E26300 ), the Eco-Innovation Technology Development Project (Grant no. 405-112-037 ) funded by the Ministry of Environment , and the R&D Program for Society of the National Research Foundation (NRF) funded by the Ministry of Science , ICT and Future Planning ( 2014M3C8A4030496 ), South Korea . This research was also partially supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science , ICT and Future Planning ( 2015R1A2A2A03005744 ). Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

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AU - Kim, Hyung Joo

AU - Song, Kyung Guen

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N2 - This study combined an algae treatment with post-ozonation for the robust treatment of piggery effluent in which high levels of organic constituents, inorganic nutrients, color, and salts remained. Due to a nearly complete light limitation resulting from a high level of color, the algae treatment was conducted with continuous O2 supplementation instead of using the combination of high lighting and CO2 injection. The microalga Acutodesmus obliquus KGE-17 showed tolerance to high salinity (up to 5.2% as chloride) and was capable of utilizing dissolved organics (1923 mg-COD/(g-cell)(day)) under the heterotrophic growth conditions. The use of A. obliquus for remediation of piggery effluent also resulted in an operational simplicity in the simultaneous removal of nitrogen and phosphorus in a single treatment process, in contrast to conventional biological nutrient removal processes. Subsequent ozonation was successful in decolorizing the algae-treated wastewater and in improving the biodegradability of residual organics in post-treatment processes.

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Treating high-strength saline piggery wastewater using the heterotrophic cultivation of Acutodesmus obliquus

Abstract

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