TY - JOUR

T1 - Comparison of nutrient removal capacity and biomass settleability of four high-potential microalgal species.

AU - Su, Yanyan

AU - Mennerich, Artur

AU - Urban, Brigitte

PY - 2012/11

Y1 - 2012/11

N2 - Four common used microalgae species were compared in terms of settleability, nutrient removal capacity and biomass productivity. After 1 month training, except cyanobacteria Phormidium sp., three green microalgae species, Chlamydomonas reinhardtii, Chlorella vulgaris and Scenedesmus rubescens, showed good settleability. The N and P removal efficiency was all above 99% within 7, 4, 6 and 6 days for N and 4, 2, 3 and 4 days for P, resulting in the N removal rates of 3.66 ± 0.17, 6.39 ± 0.20, 4.39 ± 0.06 and 4.31 ± 0.18 mg N/l/d and P removal rates of 0.56 ± 0.07, 0.89 ± 0.05, 0.76 ± 0.09 and 0.60 ± 0.05 mg P/l/d for Phormidium sp., C. reinhardtii, C. vulgaris and S. rubescens, respectively. Phormidium sp. had the lowest algal biomass productivity (2.71 ± 0.7 g/m2/d) and the other three green microalgae showed higher algal biomass productivity (around 6 g/m2/d). Assimilation into biomass was the main removal mechanism for N and P.

AB - Four common used microalgae species were compared in terms of settleability, nutrient removal capacity and biomass productivity. After 1 month training, except cyanobacteria Phormidium sp., three green microalgae species, Chlamydomonas reinhardtii, Chlorella vulgaris and Scenedesmus rubescens, showed good settleability. The N and P removal efficiency was all above 99% within 7, 4, 6 and 6 days for N and 4, 2, 3 and 4 days for P, resulting in the N removal rates of 3.66 ± 0.17, 6.39 ± 0.20, 4.39 ± 0.06 and 4.31 ± 0.18 mg N/l/d and P removal rates of 0.56 ± 0.07, 0.89 ± 0.05, 0.76 ± 0.09 and 0.60 ± 0.05 mg P/l/d for Phormidium sp., C. reinhardtii, C. vulgaris and S. rubescens, respectively. Phormidium sp. had the lowest algal biomass productivity (2.71 ± 0.7 g/m2/d) and the other three green microalgae showed higher algal biomass productivity (around 6 g/m2/d). Assimilation into biomass was the main removal mechanism for N and P.

KW - Sustainability Science

KW - Algal biomass settleability

KW - Biomass productivity

KW - High-potential

KW - Nutrient removal

KW - Unicellular microalgae species

UR - http://www.scopus.com/inward/record.url?scp=84866162194&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2010.08.037

DO - 10.1016/j.biortech.2010.08.037

M3 - Journal articles

C2 - 20822900

VL - 124

SP - 157

EP - 162

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -