TY - JOUR
T1 - Isolation of microalgae tolerant to polybrominated diphenyl ethers (PBDEs) from wastewater treatment plants and their removal ability
AU - Deng, Dan
AU - Tam, Nora Fung yee
N1 - Publisher Copyright:
© 2014 Elsevier Ltd.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - The present study isolated microalgae with tolerance to polybrominated diphenyl ethers (PBDEs) from wastewater aiming to discover isolates with high removal abilities. Nine isolates, Chlorella (STCh and SICh), Parachlorella (STPa1 and STPa2), Scenedesmus (STSc, TPSc1 and TPSc2), Nitzschia palea (YLBa) and Mychonastes (TPMy), were obtained. Four isolates, SICh, STCh, STPa1 and TPSc1, were very tolerant, and their growth was not affected by DE-71 and BDE-209 mixtures (5:1) at low (6μgL-1), medium (60μgL-1) or even high (600μgL-1) levels for 7days. The removal of PBDEs by one of the tolerant isolates, SICh, was the highest, with 82-90% removal at the end of 7-days exposure. SICh also accumulated more PBDEs than the other isolates. Bioaccumulation and biotransformation were important for PBDE removal. This is the first study isolated PBDE-tolerant microalgae from wastewater and obtained a Chlorella isolate, SICh, with high tolerance and removal ability.
AB - The present study isolated microalgae with tolerance to polybrominated diphenyl ethers (PBDEs) from wastewater aiming to discover isolates with high removal abilities. Nine isolates, Chlorella (STCh and SICh), Parachlorella (STPa1 and STPa2), Scenedesmus (STSc, TPSc1 and TPSc2), Nitzschia palea (YLBa) and Mychonastes (TPMy), were obtained. Four isolates, SICh, STCh, STPa1 and TPSc1, were very tolerant, and their growth was not affected by DE-71 and BDE-209 mixtures (5:1) at low (6μgL-1), medium (60μgL-1) or even high (600μgL-1) levels for 7days. The removal of PBDEs by one of the tolerant isolates, SICh, was the highest, with 82-90% removal at the end of 7-days exposure. SICh also accumulated more PBDEs than the other isolates. Bioaccumulation and biotransformation were important for PBDE removal. This is the first study isolated PBDE-tolerant microalgae from wastewater and obtained a Chlorella isolate, SICh, with high tolerance and removal ability.
KW - Microalgal isolate
KW - PBDEs
KW - Removal
KW - Resistance
KW - Wastewater treatment plant
UR - http://www.scopus.com/inward/record.url?scp=84916898632&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2014.11.103
DO - 10.1016/j.biortech.2014.11.103
M3 - Article
C2 - 25496950
AN - SCOPUS:84916898632
SN - 0960-8524
VL - 177
SP - 289
EP - 297
JO - Bioresource Technology
JF - Bioresource Technology
ER -