Anaerobic Treatment of Propylene Glycol-contaminated Domestic Wastewater and Microbial Community Profile at Threshold Ratio

Overview

Journal Heliyon

Specialty Social Sciences

Date 2021 Mar 5

PMID 33665448

Citations 1

Authors

Cigdem Yangin-Gomec

Gizem Engiz

Affiliations

Soon will be listed here.

Abstract

An up-flow anaerobic sludge bed (UASB) reactor was operated for five months to treat domestic wastewater contaminated by propylene glycol -main component of Type 2 aircraft deicing fluid (ADF)- at threshold ratio based on optimization study with batch reactors [i.e., operated at externally included ADF = 0.83-4.20%]. Biogas yields up to ~0.4 m/kg COD was achieved, however drastically reduced along with total chemical oxygen demand (tCOD) removal at ADF>1.20% and indicated strong inhibition. Hence, the UASB reactor was fed at ADF = 1.05% [tCOD = 8930 ± 2100 mg/L] and yielded >80% tCOD removal on average. Next generation sequencing (NGS) findings also revealed that and had the highest ratios of relative abundances in biomass sample taken at the last operating day; hence co-existence of these phyla played significant role in glycol removal with and bacteria whereas and archaea increased remarkably.

Citing Articles

Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings.

Collivignarelli M, Abba A, Caccamo F, Calatroni S, Torretta V, Katsoyiannis I Int J Environ Res Public Health. 2021; 18(19).

PMID: 34639629 PMC: 8508386. DOI: 10.3390/ijerph181910326.

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