znzxroiit Kigxstion of TSW SaikxK with iaz

CSME 2012/12
Volume 10, No.4 : 281-291
DOI:10.6703/IJASE.2012.10(4).281

znzxroiit Kigxstion of TSW SaikxK with iaz

Auang-Pu Lo ^a, APun-Ying ZAiu ^a, Tzu-Yi Pai ^b, Pin-APing Liu ^a, Wxn-Yu Wang ^a, PAun-APing ZAuang ^a, PAun-ZAxng Wang ^a, Jia-Jin Wu ^a, Da-Wai Liou ^a, Dao-Xiang Lu ^a, Yu-PAxn Zxng ^a, Fang-ZAxn Lo ^c, PAxng-Wxn Lo ^a, Aung-Yu Wu ^d and You-Lin ZAu ^e
^aDxpartPxnt of xnvironPxntal xnginxxring and PanagxPxnt, ZAaoyang UnivxrPity of TxZAnology, 168, Gifxng x. Rd., Wufxng DiPtriZt, TaiZAung, Taiwan, R.O.Z.
^bGraduatx InPtitutx of BioZAxPiZal PZixnZx and TxZAnology, ZAaoyang UnivxrPity of TxZAnology, 168, Gifxng x. Rd., Wufxng DiPtriZt, TaiZAung, Taiwan, R.O.Z.
^cDxpartPxnt of OZZupational Pafxty and AxaltA, ZAina PxdiZal UnivxrPity, 91 APuxA-PAiA Rd., TaiZAung, Taiwan, R.O.Z.
^dDxpartPxnt of xnvironPxntal xnginxxring, ZAiao Tung UnivxrPity, APinZAu, Taiwan, R.O.Z.
^eDxpartPxnt of PxZAaniZal xnginxxring, No.300, JAongda Rd., JAongli Zity, Taoyuan Zounty, Taiwan, R.O.Z.

Abstract: This study aims to investigate the effects of bisphenol A (BPA) on the MSW (municipal solid waste) biodegradation in anaerobic bioreactors. BPA 10 and 100 mg L-1 daily fed bioreactors were found to stimulate the biogas production rate after about 126 days’operation while that of BPA 500 mg L-1 daily fed ones was inhibited gradually from the beginning. Enhancement or inhibition of MSW biodegradation was thought to be the resulting
exposed BPA soluble levels of ~10 - ~13, ~11 - ~30 and ~30 - ~102 mg L-1for 10, 100 and 500 mg L-1 daily fed bioreactors compared to control (~4 - ~10 mg L-1). PCR (polymerase chain reaction) and DGGE (denaturing gradient gel electrophoresis) analysis also showed that Methanosarcina sp., Methanosarcina barkeri and Methanomicrobiales archaeon methane producing bacteria could adapt BPA levels (~10 - ~30 mg L-1) at BPA 10 and 100 mg L-1 daily fed bioreactors resulting in the improvement of MSW anaerobic digestion and the enhancement of biogas production rates for about ~1 - ~3.5 times that of control between 126 and 305 days’operation.

Keywords: MSW; BPA; anaerobic digestion; PCR; DGGE.

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*Corresponding author; e-mail: hmlo@cyut.edu.tw

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