The long-term effects of wall attached microalgal biofilm on algae-based wastewater treatment
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In: Bioresource Technology, Vol. 218, 10.2016, p. 1249-1252.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - The long-term effects of wall attached microalgal biofilm on algae-based wastewater treatment
AU - Su, Yanyan
AU - Mennerich, Artur
AU - Urban, Brigitte
PY - 2016/10
Y1 - 2016/10
N2 - The influence of the reactor wall attached biofilm on the nutrient removal performance was investigated in an open photobioreactor during long-term operation. Total nitrogen and phosphorus removal efficiencies were statistically similar between reactor with (reactor A) and without (reactor B) biofilm at the Hydraulic Retention Time (HRT) of 18, 13.5 and 9 days. When the HRT reduced to 8 days, total nitrogen and phosphorus removal efficiencies in the reactor A were 42.95 ± 5.11% and 97.97 ± 1.12%, respectively, while significant lower removal efficiencies (38.06 ± 5.80% for total nitrogen and 83.14 ± 8.16% for phosphorus) were obtained in the reactor B. The VSS concentrations throughout the test were statistically similar for the two reactors, with a mean value of 0.63 ± 0.25 g/l for reactor A and 0.69 ± 0.20 g/l for reactor B. This study indicated that the reactor wall attached biofilm supported high phosphorus and nitrogen removal, which may provide insight into the practical implementation of microalgae-based wastewater treatment.
AB - The influence of the reactor wall attached biofilm on the nutrient removal performance was investigated in an open photobioreactor during long-term operation. Total nitrogen and phosphorus removal efficiencies were statistically similar between reactor with (reactor A) and without (reactor B) biofilm at the Hydraulic Retention Time (HRT) of 18, 13.5 and 9 days. When the HRT reduced to 8 days, total nitrogen and phosphorus removal efficiencies in the reactor A were 42.95 ± 5.11% and 97.97 ± 1.12%, respectively, while significant lower removal efficiencies (38.06 ± 5.80% for total nitrogen and 83.14 ± 8.16% for phosphorus) were obtained in the reactor B. The VSS concentrations throughout the test were statistically similar for the two reactors, with a mean value of 0.63 ± 0.25 g/l for reactor A and 0.69 ± 0.20 g/l for reactor B. This study indicated that the reactor wall attached biofilm supported high phosphorus and nitrogen removal, which may provide insight into the practical implementation of microalgae-based wastewater treatment.
KW - Wall attached biofilm
KW - Long-term operation
KW - Microalgae
KW - Wastewater treatment
KW - Nutrient removal
KW - Environmental planning
UR - http://www.scopus.com/inward/record.url?scp=84978533769&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2016.06.099
DO - 10.1016/j.biortech.2016.06.099
M3 - Journal articles
C2 - 27374070
VL - 218
SP - 1249
EP - 1252
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -