Biodegradation of oil sands process affected water in sequencing batch reactors and microbial community analysis by high-throughput pyrosequencing

被引：18

作者：

Choi, Jeongdong ^{[1
]}

Liu, Yang ^{[1
]}

机构：

[1] Univ Alberta, Dept Civil & Environm Engn, Edmonton, AB T6G 2W2, Canada

来源：

INTERNATIONAL BIODETERIORATION & BIODEGRADATION | 2014年 / 92卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Sequencing batch reactors; Activated sludge; Mature fine tailings; Oil sands process affected water; Pyrosequencing; INDUSTRIAL WASTE-WATER; NAPHTHENIC ACIDS; BIOLOGICAL TREATMENT; REMOVAL; DEGRADATION; TOXICITY; ENRICHMENT; OZONATION; BACTERIUM; ALBERTA;

D O I：

10.1016/j.ibiod.2014.04.020

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Two sequencing batch reactors (SBR) were constructed and filled with different inocula of activated sludge (AS) and mature fine tailings (MFT) to treat oil sands process-affected water (OSPW). The COD was reduced by 82% in the AS-SBR and 43% in the MFT-SBR during phase I using 10% OSPW and 90% synthetic wastewater as reactor feed. However, COD removal reached 12% and 20% in the AS-SBR and the MFT-SBR, respectively, when 100% raw OSPW was fed into the reactors. Maximum removal of acid-extractable organics (AEO) was 8.7% and 16.6% in the AS-SBR and the MFT-SBR, respectively with a hydraulic retention time of one day. Pyrosequencing analysis revealed that Proteobacteria was the dominant phylum and beta- and gamma-Proteobacteria were dominant classes in both reactors. Evidence of a microbial community change was observed when influent raw OSPW was switched from 50 to 100%. More significant changes in the AS-SBR community were detected. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：79 / 85

页数：7

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