Coupled nutrient removal and biomass production with mixed algal culture: Impact of biotic and abiotic factors
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Coupled nutrient removal and biomass production with mixed algal culture : Impact of biotic and abiotic factors. / Su, Yanyan; Mennerich, Artur; Urban, Brigitte.
In: Bioresource Technology, Vol. 118, 08.2012, p. 469-476.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Coupled nutrient removal and biomass production with mixed algal culture
T2 - Impact of biotic and abiotic factors
AU - Su, Yanyan
AU - Mennerich, Artur
AU - Urban, Brigitte
PY - 2012/8
Y1 - 2012/8
N2 - The influence of biotic (algal inoculum concentration) and abiotic factors (illumination cycle, mixing velocity and nutrient strength) on the treatment efficiency, biomass generation and settleability were investigated with selected mixed algal culture. Dark condition led to poor nutrient removal efficiency. No significant difference in the N, P removal and biomass settleability between continuous and alternating illumination was observed, but a higher biomass generation capability for the continuous illumination was obtained. Different mixing velocity led to similar phosphorus removal efficiencies (above 98%) with different retention times. The reactor with 300. rpm mixing velocity had the best N removal capability. For the low strength wastewater, the N rates were 5.4. ± 0.2, 9.1. ± 0.3 and 10.8. ± 0.3. mg/l/d and P removal rates were 0.57. ± 0.03, 0.56. ± 0.03 and 0.72. ± 0.05. mg/l/d for reactors with the algal inoculum concentration of 0.2, 0.5 and 0.8. g/l, respectively. Low nutrient removal efficiency and poor biomass settleability were obtained for high strength wastewater.
AB - The influence of biotic (algal inoculum concentration) and abiotic factors (illumination cycle, mixing velocity and nutrient strength) on the treatment efficiency, biomass generation and settleability were investigated with selected mixed algal culture. Dark condition led to poor nutrient removal efficiency. No significant difference in the N, P removal and biomass settleability between continuous and alternating illumination was observed, but a higher biomass generation capability for the continuous illumination was obtained. Different mixing velocity led to similar phosphorus removal efficiencies (above 98%) with different retention times. The reactor with 300. rpm mixing velocity had the best N removal capability. For the low strength wastewater, the N rates were 5.4. ± 0.2, 9.1. ± 0.3 and 10.8. ± 0.3. mg/l/d and P removal rates were 0.57. ± 0.03, 0.56. ± 0.03 and 0.72. ± 0.05. mg/l/d for reactors with the algal inoculum concentration of 0.2, 0.5 and 0.8. g/l, respectively. Low nutrient removal efficiency and poor biomass settleability were obtained for high strength wastewater.
KW - Environmental planning
KW - Algal biomass production
KW - Biomass settleability
KW - Biotic and abiotic factors
KW - Mixed algal culture
KW - Nutrient treatment
KW - Algal biomass production
KW - Biomass settleability
KW - Biotic and abiotic factors
KW - Mixed algal culture
KW - Nutrient treatment
KW - Ecosystems Research
UR - http://www.scopus.com/inward/record.url?scp=84862271656&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2012.05.093
DO - 10.1016/j.biortech.2012.05.093
M3 - Journal articles
C2 - 22717565
AN - SCOPUS:84862271656
VL - 118
SP - 469
EP - 476
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -