TY - JOUR
T1 - Biodegradation of benzotriazoles and hydroxy-benzothiazole in wastewater by activated sludge and moving bed biofilm reactor systems
AU - Mazioti, Aikaterini A.
AU - Stasinakis, Athanasios S.
AU - Pantazi, Ypapanti
AU - Andersen, Henrik Rasmus
N1 - Bioresource Technology. Volume 192, September 2015, Pages 627–635
PY - 2015
Y1 - 2015
N2 - Two laboratory scale fully aerated continuous flow
wastewater treatment systems were used to compare the
removal of five benzotriazoles and one benzothiazole by
suspended and attached growth biomass. The Activated
Sludge system was operated under low organic loading
conditions. The Moving Bed Biofilm Reactor (MBBR)
system consisted of two serially connected reactors filled
with K3-biocarriers. It was either operated under low or high
organic loading conditions. Target compounds were
removed partially and with different rates in tested systems.
For MBBR, increased loading resulted in significantly lower
biodegradation for 4 out of 6 examined compounds.
Calculation of specific removal rates (normalised to
biomass) revealed that attached biomass had higher
biodegradation potential for target compounds comparing to
suspended biomass. Clear differences in the biodegradation
ability of attached biomass grown in different bioreactors of
MBBR systems were also observed. Batch experiments
showed that micropollutants biodegradation by both types of
biomass is co-metabolic.
AB - Two laboratory scale fully aerated continuous flow
wastewater treatment systems were used to compare the
removal of five benzotriazoles and one benzothiazole by
suspended and attached growth biomass. The Activated
Sludge system was operated under low organic loading
conditions. The Moving Bed Biofilm Reactor (MBBR)
system consisted of two serially connected reactors filled
with K3-biocarriers. It was either operated under low or high
organic loading conditions. Target compounds were
removed partially and with different rates in tested systems.
For MBBR, increased loading resulted in significantly lower
biodegradation for 4 out of 6 examined compounds.
Calculation of specific removal rates (normalised to
biomass) revealed that attached biomass had higher
biodegradation potential for target compounds comparing to
suspended biomass. Clear differences in the biodegradation
ability of attached biomass grown in different bioreactors of
MBBR systems were also observed. Batch experiments
showed that micropollutants biodegradation by both types of
biomass is co-metabolic.
U2 - 10.1016/j.biortech.2015.06.035
DO - 10.1016/j.biortech.2015.06.035
M3 - Journal article
C2 - 26093257
SN - 0960-8524
VL - 192
SP - 627
EP - 635
JO - Bioresource Technology
JF - Bioresource Technology
ER -