Up-scaling aquaculture wastewater treatment by microalgal bacterial flocs: From lab reactors to an outdoor raceway pond

被引：110

作者：

Van den Hende, Sofie ^{[1
,2
]}

Beelen, Veerle ^{[1
]}

Bore, Gaelle ^{[1
,3
]}

Boon, Nico ^{[2
]}

Vervaeren, Han ^{[1
]}

机构：

[1] Univ Ghent, Fac Biosci Engn, Enbichem, Lab Ind Water & Ecotechnol LIWET, B-8500 Kortrijk, Belgium

[2] Univ Ghent, Fac Biosci Engn, Lab Microbial Ecol & Technol LabMET, B-9000 Ghent, Belgium

[3] EME, F-35170 Bruz, France

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 159卷

关键词：

Algae; Bioflocculation; Raceway pond; Aquaculture wastewater; Biomass; ALGAE; RECOVERY;

D O I：

10.1016/j.biortech.2014.02.113

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Sequencing batch reactors with microalgal bacterial flocs (MaB-floc SBRs) are a novel approach for photosynthetic aerated wastewater treatment based on bioflocculation. To assess their technical potential for aquaculture wastewater treatment in Northwest Europe, MaB-floc SBRs were up-scaled from indoor photobioreactors of 4 L over 40 and 400 L to a 12 m(3) outdoor raceway pond. Scale-up decreased the nutrient removal efficiencies with a factor 1-3 and the volumetric biomass productivities with a factor 10-13. Effluents met current discharge norms, except for nitrite and nitrate. Flue gas sparging was needed to decrease the effluent pH. Outdoor MaB-flocs showed enhanced settling properties and an increased ash and chlorophyll a content. Bioflocculation enabled successful harvesting by gravity settling and dewatering by filtering at 150-250 lm. Optimisation of nitrogen removal and biomass valorisation are future challenges towards industrial implementation of MaB-floc SBRs for aquaculture wastewater treatment. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：342 / 354

页数：13

共 3 条

[1] Anaerobic digestion of microalgal bacterial flocs from a raceway pond treating aquaculture wastewater: Need for a biorefinery
Van Den Hende, Sofie
Laurent, Cedric
Begue, Marine
BIORESOURCE TECHNOLOGY, 2015, 196 : 184 - 193
[2] Environmental sustainability assessment of a microalgae raceway pond treating aquaculture wastewater: From up-scaling to system integration
Sfez, Sophie
Van Den Hende, Sofie
Taelman, Sue Ellen
De Meester, Steven
Dewulf, Jo
BIORESOURCE TECHNOLOGY, 2015, 190 : 321 - 331
[3] Microalgal bacterial flocs originating from aquaculture wastewater treatment as diet ingredient for Litopenaeus vannamei (Boone)
Van den Hende, Sofie
Claessens, Leon
De Muylder, Eric
Boon, Nico
Vervaeren, Han
AQUACULTURE RESEARCH, 2016, 47 (04) : 1075 - 1089

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