Development of an effective acidogenically digested swine manure-based algal system for improved wastewater treatment and biofuel and feed production

Bing Hu; Wenguang Zhou; Min Min; Zhenyi Du; Paul Chen; Xiaochen Ma; Yuhuan Liu; Hanwu Lei; Jian Shi; Roger Ruan

doi:10.1016/j.apenergy.2013.02.033

Development of an effective acidogenically digested swine manure-based algal system for improved wastewater treatment and biofuel and feed production

Bing Hu, Wenguang Zhou, Min Min, Zhenyi Du, Paul Chen, Xiaochen Ma, Yuhuan Liu, Hanwu Lei, Jian Shi, Roger Ruan

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

89 Scopus citations

Abstract

An effective semi-continuous process was developed to grow a locally isolated green microalga Chlorella sp. on acidogenically digested swine wastewater in bench scale for improved algal biomass production and waste nutrient removal using central composite design (CCD). The influences of two key parameters, namely wastewater dilution rate (DR) and hydraulic retention time (HRT), on algal biomass productivity and nutrient removal rates were investigated. The optimal parameters estimated from the significant second-order quadratic models (p<. 0.05) were 8-fold DR and 2.26-d HRT. The cultivating experiment in a bench-scale multi-layer photobioreactor with the optimized conditions achieved stable algal productivity and nutrient removal rates, which fitted the predictive models well. Moreover, relatively high and stable protein and lipid contents (58.78% and 26.09% of the dry weight, respectively) were observed for the collected algae sample, indicating the suitability of the algal biomass as ideal feedstock for both biofuel and feed production.

Original language	English (US)
Pages (from-to)	255-263
Number of pages	9
Journal	Applied Energy
Volume	107
DOIs	https://doi.org/10.1016/j.apenergy.2013.02.033
State	Published - Jul 2013

Bibliographical note

Funding Information:
The study was supported in part by grants from Minnesota Legislative – Citizen Commission on Minnesota Resource (LCCMR), China 863 Projects (Grant Nos.: 2012AA021205 ; 2012AA101800-03 ; 2012AA021704 ; 2012AA101809 ), China International Cooperation Projects (Grant Nos.: 2009DFA61680 ; 2010DFB63750 ), NSF of China (Grant No.: 21177067 ), and the Key Program of Natural Science of the Jiangsu Province of China (Grant No.: BK2010034).

Keywords

Acidogenically digested swine manure
Biofuel feedstock production
Central composite design
Chlorella sp.
Nutrient removal

UN SDGs

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

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10.1016/j.apenergy.2013.02.033

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title = "Development of an effective acidogenically digested swine manure-based algal system for improved wastewater treatment and biofuel and feed production",

abstract = "An effective semi-continuous process was developed to grow a locally isolated green microalga Chlorella sp. on acidogenically digested swine wastewater in bench scale for improved algal biomass production and waste nutrient removal using central composite design (CCD). The influences of two key parameters, namely wastewater dilution rate (DR) and hydraulic retention time (HRT), on algal biomass productivity and nutrient removal rates were investigated. The optimal parameters estimated from the significant second-order quadratic models (p<. 0.05) were 8-fold DR and 2.26-d HRT. The cultivating experiment in a bench-scale multi-layer photobioreactor with the optimized conditions achieved stable algal productivity and nutrient removal rates, which fitted the predictive models well. Moreover, relatively high and stable protein and lipid contents (58.78% and 26.09% of the dry weight, respectively) were observed for the collected algae sample, indicating the suitability of the algal biomass as ideal feedstock for both biofuel and feed production.",

keywords = "Acidogenically digested swine manure, Biofuel feedstock production, Central composite design, Chlorella sp., Nutrient removal",

author = "Bing Hu and Wenguang Zhou and Min Min and Zhenyi Du and Paul Chen and Xiaochen Ma and Yuhuan Liu and Hanwu Lei and Jian Shi and Roger Ruan",

note = "Funding Information: The study was supported in part by grants from Minnesota Legislative – Citizen Commission on Minnesota Resource (LCCMR), China 863 Projects (Grant Nos.: 2012AA021205 ; 2012AA101800-03 ; 2012AA021704 ; 2012AA101809 ), China International Cooperation Projects (Grant Nos.: 2009DFA61680 ; 2010DFB63750 ), NSF of China (Grant No.: 21177067 ), and the Key Program of Natural Science of the Jiangsu Province of China (Grant No.: BK2010034). ",

year = "2013",

month = jul,

doi = "10.1016/j.apenergy.2013.02.033",

language = "English (US)",

volume = "107",

pages = "255--263",

journal = "Applied Energy",

issn = "0306-2619",

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TY - JOUR

T1 - Development of an effective acidogenically digested swine manure-based algal system for improved wastewater treatment and biofuel and feed production

AU - Hu, Bing

AU - Zhou, Wenguang

AU - Min, Min

AU - Du, Zhenyi

AU - Chen, Paul

AU - Ma, Xiaochen

AU - Liu, Yuhuan

AU - Lei, Hanwu

AU - Shi, Jian

AU - Ruan, Roger

N1 - Funding Information: The study was supported in part by grants from Minnesota Legislative – Citizen Commission on Minnesota Resource (LCCMR), China 863 Projects (Grant Nos.: 2012AA021205 ; 2012AA101800-03 ; 2012AA021704 ; 2012AA101809 ), China International Cooperation Projects (Grant Nos.: 2009DFA61680 ; 2010DFB63750 ), NSF of China (Grant No.: 21177067 ), and the Key Program of Natural Science of the Jiangsu Province of China (Grant No.: BK2010034).

PY - 2013/7

Y1 - 2013/7

N2 - An effective semi-continuous process was developed to grow a locally isolated green microalga Chlorella sp. on acidogenically digested swine wastewater in bench scale for improved algal biomass production and waste nutrient removal using central composite design (CCD). The influences of two key parameters, namely wastewater dilution rate (DR) and hydraulic retention time (HRT), on algal biomass productivity and nutrient removal rates were investigated. The optimal parameters estimated from the significant second-order quadratic models (p<. 0.05) were 8-fold DR and 2.26-d HRT. The cultivating experiment in a bench-scale multi-layer photobioreactor with the optimized conditions achieved stable algal productivity and nutrient removal rates, which fitted the predictive models well. Moreover, relatively high and stable protein and lipid contents (58.78% and 26.09% of the dry weight, respectively) were observed for the collected algae sample, indicating the suitability of the algal biomass as ideal feedstock for both biofuel and feed production.

AB - An effective semi-continuous process was developed to grow a locally isolated green microalga Chlorella sp. on acidogenically digested swine wastewater in bench scale for improved algal biomass production and waste nutrient removal using central composite design (CCD). The influences of two key parameters, namely wastewater dilution rate (DR) and hydraulic retention time (HRT), on algal biomass productivity and nutrient removal rates were investigated. The optimal parameters estimated from the significant second-order quadratic models (p<. 0.05) were 8-fold DR and 2.26-d HRT. The cultivating experiment in a bench-scale multi-layer photobioreactor with the optimized conditions achieved stable algal productivity and nutrient removal rates, which fitted the predictive models well. Moreover, relatively high and stable protein and lipid contents (58.78% and 26.09% of the dry weight, respectively) were observed for the collected algae sample, indicating the suitability of the algal biomass as ideal feedstock for both biofuel and feed production.

KW - Acidogenically digested swine manure

KW - Biofuel feedstock production

KW - Central composite design

KW - Chlorella sp.

KW - Nutrient removal

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M3 - Article

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SN - 0306-2619

VL - 107

SP - 255

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JO - Applied Energy

JF - Applied Energy

ER -

Development of an effective acidogenically digested swine manure-based algal system for improved wastewater treatment and biofuel and feed production

Abstract

Bibliographical note

Keywords

UN SDGs

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