Effect of stepwise or one-time illumination strategy on the development of algal-bacterial aerobic granular sludge in sequencing batch reactor

Jixiang Wang; Yanjun Wei; Zejiao Li; Xingyu Chen; Zhongfang Lei; Tian Yuan; Kazuya Shimizu; Zhenya Zhang; Sang Hyoun Kim; Duu Jong Lee

doi:10.1016/j.biteb.2021.100931

Effect of stepwise or one-time illumination strategy on the development of algal-bacterial aerobic granular sludge in sequencing batch reactor

Jixiang Wang, Yanjun Wei, Zejiao Li, Xingyu Chen, Zhongfang Lei, Tian Yuan, Kazuya Shimizu, Zhenya Zhang, Sang Hyoun Kim, Duu Jong Lee

Department of Civil and Environmental Engineering

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

3 Citations (Scopus)

Abstract

Algal-bacterial aerobic granular sludge (AGS) as a promising wastewater treatment biotechnology has attracted more attention in recent years. Still, limited information is available on the effect of stepwise illumination on algal-bacterial AGS. In this study, two illumination strategies, i.e., stepwise (R₁) and one-time (R₂) daily, were applied to cultivate algal-bacterial AGS from bacterial AGS. Results indicated that R₁ holds more advantages over R₂ in terms of algal-bacterial AGS formation, biomass growth, extracellular polymeric substances excretion and phosphorus (P) accumulation. Specifically, algal-bacterial AGS in R₁ contained higher chlorophyll a content of 5.84 mg/g-MLVSS with the biomass yield of 0.50 g-MLVSS/g-COD in comparison to 5.04 mg/g-MLVSS and 0.43 g-MLVSS/g-COD in R₂. Moreover, stepwise illumination effectively alleviated the negative effects of microalgae on anaerobic P release and P accumulation. However, no significant difference was detected between R₁ and R₂ regarding granule diameter and morphology in addition to organics and nutrients removal.

Original language	English
Article number	100931
Journal	Bioresource Technology Reports
Volume	17
DOIs	https://doi.org/10.1016/j.biteb.2021.100931
Publication status	Published - 2022 Feb

Bibliographical note

Funding Information:
This work was supported by JSPS KAKENHI Grant Number JP18H03403 . The first author, Mr. Jixiang Wang thanks the financial support by the China Scholarship Council (No. 201804910437 ) for his PhD study at University of Tsukuba, Japan.

Publisher Copyright:
© 2022 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

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10.1016/j.biteb.2021.100931

Cite this

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title = "Effect of stepwise or one-time illumination strategy on the development of algal-bacterial aerobic granular sludge in sequencing batch reactor",

abstract = "Algal-bacterial aerobic granular sludge (AGS) as a promising wastewater treatment biotechnology has attracted more attention in recent years. Still, limited information is available on the effect of stepwise illumination on algal-bacterial AGS. In this study, two illumination strategies, i.e., stepwise (R1) and one-time (R2) daily, were applied to cultivate algal-bacterial AGS from bacterial AGS. Results indicated that R1 holds more advantages over R2 in terms of algal-bacterial AGS formation, biomass growth, extracellular polymeric substances excretion and phosphorus (P) accumulation. Specifically, algal-bacterial AGS in R1 contained higher chlorophyll a content of 5.84 mg/g-MLVSS with the biomass yield of 0.50 g-MLVSS/g-COD in comparison to 5.04 mg/g-MLVSS and 0.43 g-MLVSS/g-COD in R2. Moreover, stepwise illumination effectively alleviated the negative effects of microalgae on anaerobic P release and P accumulation. However, no significant difference was detected between R1 and R2 regarding granule diameter and morphology in addition to organics and nutrients removal.",

author = "Jixiang Wang and Yanjun Wei and Zejiao Li and Xingyu Chen and Zhongfang Lei and Tian Yuan and Kazuya Shimizu and Zhenya Zhang and Kim, {Sang Hyoun} and Lee, {Duu Jong}",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Number JP18H03403 . The first author, Mr. Jixiang Wang thanks the financial support by the China Scholarship Council (No. 201804910437 ) for his PhD study at University of Tsukuba, Japan. Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = feb,

doi = "10.1016/j.biteb.2021.100931",

language = "English",

volume = "17",

journal = "Bioresource Technology Reports",

issn = "2589-014X",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Effect of stepwise or one-time illumination strategy on the development of algal-bacterial aerobic granular sludge in sequencing batch reactor

AU - Wang, Jixiang

AU - Wei, Yanjun

AU - Li, Zejiao

AU - Chen, Xingyu

AU - Lei, Zhongfang

AU - Yuan, Tian

AU - Shimizu, Kazuya

AU - Zhang, Zhenya

AU - Kim, Sang Hyoun

AU - Lee, Duu Jong

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Number JP18H03403 . The first author, Mr. Jixiang Wang thanks the financial support by the China Scholarship Council (No. 201804910437 ) for his PhD study at University of Tsukuba, Japan. Publisher Copyright: © 2022 Elsevier Ltd

PY - 2022/2

Y1 - 2022/2

N2 - Algal-bacterial aerobic granular sludge (AGS) as a promising wastewater treatment biotechnology has attracted more attention in recent years. Still, limited information is available on the effect of stepwise illumination on algal-bacterial AGS. In this study, two illumination strategies, i.e., stepwise (R1) and one-time (R2) daily, were applied to cultivate algal-bacterial AGS from bacterial AGS. Results indicated that R1 holds more advantages over R2 in terms of algal-bacterial AGS formation, biomass growth, extracellular polymeric substances excretion and phosphorus (P) accumulation. Specifically, algal-bacterial AGS in R1 contained higher chlorophyll a content of 5.84 mg/g-MLVSS with the biomass yield of 0.50 g-MLVSS/g-COD in comparison to 5.04 mg/g-MLVSS and 0.43 g-MLVSS/g-COD in R2. Moreover, stepwise illumination effectively alleviated the negative effects of microalgae on anaerobic P release and P accumulation. However, no significant difference was detected between R1 and R2 regarding granule diameter and morphology in addition to organics and nutrients removal.

AB - Algal-bacterial aerobic granular sludge (AGS) as a promising wastewater treatment biotechnology has attracted more attention in recent years. Still, limited information is available on the effect of stepwise illumination on algal-bacterial AGS. In this study, two illumination strategies, i.e., stepwise (R1) and one-time (R2) daily, were applied to cultivate algal-bacterial AGS from bacterial AGS. Results indicated that R1 holds more advantages over R2 in terms of algal-bacterial AGS formation, biomass growth, extracellular polymeric substances excretion and phosphorus (P) accumulation. Specifically, algal-bacterial AGS in R1 contained higher chlorophyll a content of 5.84 mg/g-MLVSS with the biomass yield of 0.50 g-MLVSS/g-COD in comparison to 5.04 mg/g-MLVSS and 0.43 g-MLVSS/g-COD in R2. Moreover, stepwise illumination effectively alleviated the negative effects of microalgae on anaerobic P release and P accumulation. However, no significant difference was detected between R1 and R2 regarding granule diameter and morphology in addition to organics and nutrients removal.

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Effect of stepwise or one-time illumination strategy on the development of algal-bacterial aerobic granular sludge in sequencing batch reactor

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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