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

► Coupling low cost and eco-friendly algae-based biofuel with animal feed production. ► Developing an effective algal system on acidogenically digested manure by a 22 CCD way. ► High algal growth rate and nutrient removal rates are obtained from the algal system. ► Having high algal lipid productivi...

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Veröffentlicht in:Applied energy 2013-07, Vol.107, p.255-263
Hauptverfasser: Hu, Bing, Zhou, Wenguang, Min, Min, Du, Zhenyi, Chen, Paul, Ma, Xiaochen, Liu, Yuhuan, Lei, Hanwu, Shi, Jian, Ruan, Roger
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Sprache:eng
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Zusammenfassung:► Coupling low cost and eco-friendly algae-based biofuel with animal feed production. ► Developing an effective algal system on acidogenically digested manure by a 22 CCD way. ► High algal growth rate and nutrient removal rates are obtained from the algal system. ► Having high algal lipid productivity (3.63gm2d−1) for low-cost biofuel production. 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
ISSN:0306-2619
1872-9118
DOI:10.1016/j.apenergy.2013.02.033