Please use this identifier to cite or link to this item:
Title: Fate and behavior of dissolved organic matter in a submerged anoxic-aerobic membrane bioreactor (MBR)
Authors: Zhang, Dongqing
Trzcinski, Antoine Prandota
Luo, Jinxue
Stuckey, David C.
Tan, Soon Keat
Keywords: Engineering::Environmental engineering
Issue Date: 2018
Source: Zhang, D., Trzcinski, A. P., Luo, J., Stuckey, D. C., & Tan, S. K. (2018). Fate and behavior of dissolved organic matter in a submerged anoxic-aerobic membrane bioreactor (MBR). Environmental Science and Pollution Research, 25(5), 4289–4302. doi:10.1007/s11356-017-0586-x
Journal: Environmental Science and Pollution Research
Abstract: In this study, the production, composition, and characteristics of dissolved organic matter (DOM) in an anoxic-aerobic submerged membrane bioreactor (MBR) were investigated. The average concentrations of proteins and carbohydrates in the MBR aerobic stage were 3.96 ± 0.28 and 8.36 ± 0.89 mg/L, respectively. After membrane filtration, these values decreased to 2.9 ± 0.2 and 2.8 ± 0.2 mg/L, respectively. High performance size exclusion chromatograph (HP-SEC) analysis indicated a bimodal molecular weight (MW) distribution of DOMs, and that the intensities of all the peaks were reduced in the MBR effluent compared to the influent. Three-dimensional fluorescence excitation emission matrix (FEEM) indicated that fulvic and humic acid-like substances were the predominant DOMs in biological treatment processes. Precise identification and characterization of low-MW DOMs was carried out using gas chromatography-mass spectrometry (GC-MS). The GC-MS analysis indicated that the highest peak numbers (170) were found in the anoxic stage, and 54 (32%) compounds were identified with a similarity greater than 80%. Alkanes (28), esters (11), and aromatics (7) were the main compounds detected. DOMs exhibited both biodegradable and recalcitrant characteristics. There were noticeable differences in the low-MW DOMs present down the treatment process train in terms of numbers, concentrations, molecular weight, biodegradability, and recalcitrance.
ISSN: 1614-7499
DOI: 10.1007/s11356-017-0586-x
Schools: School of Civil and Environmental Engineering 
Research Centres: Nanyang Environment and Water Research Institute 
Rights: © 2017 Springer-Verlag GmbH Germany. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

Citations 20

Updated on Sep 22, 2023

Web of ScienceTM
Citations 20

Updated on Sep 25, 2023

Page view(s)

Updated on Sep 29, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.