Treatment of agro-industrial wastewater using microalgae-bacteria consortium combined with anaerobic digestion of the produced biomass

被引：115

作者：

Hernandez, D. ^{[1
]}

Riano, B. ^{[1
]}

Coca, M. ^{[2
]}

Garcia-Gonzalez, M. C. ^{[1
]}

机构：

[1] Agr Technol Inst Castilla & Leon, Valladolid 47071, Spain

[2] Univ Valladolid, Dept Chem Engn & Environm Technol, E-47011 Valladolid, Spain

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 135卷

关键词：

Biofuels; Agro-industrial wastewater; Algal-biomass; Methane production; CO-DIGESTION; ALGAE; SWINE; RATIO; DEGRADATION; SUBSTRATE; INOCULUM; NITROGEN; REMOVAL;

D O I：

10.1016/j.biortech.2012.09.029

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Two combined processes were studied in order to produce second generation biofuels: microalgae biomass production and its further use to produce biogas. Two 5 L photobioreactors for treating wastewater from a potato processing industry (from now on RPP) and from a treated liquid fraction of pig manure (from now on RTE) were inoculated with Chlorella sorokiniana and aerobic bacteria at 24 +/- 2.7 degrees C and 6000 lux for 12 h per day of light supply. The maximum biomass growth was obtained for RTE wastewater, with 26.30 mg dry weight L-1 d(-1). Regarding macromolecular composition of collected biomass, lipid concentration reached 30.20% in RPP and 4.30% in RTE. Anaerobic digestion results showed that methane yield was highly influenced by substrate/inoculum ratio and by lipids concentration of the biomass, with a maximum methane yield of 518 mL CH4 g CODadded-1 using biomass with a lipid content of 30% and a substrate/inoculum ratio of 0.5. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：598 / 603

页数：6

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