好氧膜生物反应器污泥中双酚 A 的生物降解。

Biodegradation of Bisphenol-A in aerobic membrane bioreactor sludge.

机构信息

Institut national de la recherche scientifique (INRS-Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec, Qc, Canada G1K 9A9 E-mail:

出版信息

Water Sci Technol. 2013;68(9):1926-31. doi: 10.2166/wst.2013.442.

DOI:10.2166/wst.2013.442

PMID:24225091

Abstract

Bisphenol-A (BPA) biodegradation was studied in a membrane bioreactor under aerobic conditions. The effects of the initial BPA concentration and initial chemical oxygen demand (COD) concentration on BPA biodegradation were investigated. The degradation process followed a first-order kinetic (more than 98% of BPA was removed) with a kinetic rate constant of 1.134 h(-1) using an initial BPA concentration of 1.0 mg L(-1). The kinetic rate constant decreased to 0.611 h(-1) when the initial BPA concentration increased to 5.0 mg L(-1). The initial COD concentration (400 and 2,000 mg L(-1)) did not affect the biodegradation kinetic of BPA.

摘要

双酚 A (BPA) 在有氧条件下的膜生物反应器中进行了生物降解研究。考察了初始 BPA 浓度和初始化学需氧量 (COD) 浓度对 BPA 生物降解的影响。在初始 BPA 浓度为 1.0 mg L(-1) 时，降解过程遵循一级动力学（去除率超过 98%），动力学速率常数为 1.134 h(-1)。当初始 BPA 浓度增加到 5.0 mg L(-1) 时，动力学速率常数降低至 0.611 h(-1)。初始 COD 浓度（400 和 2,000 mg L(-1)) 不影响 BPA 的生物降解动力学。