Microbial community metabolic function in subsurface flow constructed wetlands of different designs

Button, Mark; Nivala, Jaime; Weber, Kela P.; Aubron, Thomas; Müller, Roland

doi:10.1016/j.ecoleng.2014.09.073

Cited by 104 publications

(42 citation statements)

References 22 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For example, the removal of sulfamethoxazole has been shown to be influenced by the occurring nitrification and denitrification conditions, which influence the microbial population in the bed reactor [39,40]. In addition, the microbial community metabolic function has been demonstrated to be significantly different between different CW designs when treating domestic wastewater [41]. However, this is the first study investigating the removal of EOCs in a partially saturated VF wetland and further investigations are needed for a better understanding of the phenomenon.…”

Section: Behavior Of Pharmaceuticals and Personal Care Productsmentioning

confidence: 89%

Removal of organic carbon, nitrogen, emerging contaminants and fluorescing organic matter in different constructed wetland configurations

Sgroi

Pelissari

Roccaro

et al. 2018

Chemical Engineering Journal

116

View full text Add to dashboard Cite

The elimination of organic carbon, nitrogen, five emerging organic contaminants (EOCs) and fluorescence signature was evaluated in two treatment lines comprising different constructed wetland (CW) configurations: (i) partially saturated vertical subsurface flow (SVF) wetland (treatment line 1) and (ii) unsaturated vertical subsurface flow (UVF), horizontal subsurface flow (HF) and free water surface (FWS) wetlands in series (treatment line 2). Results showed important differences between the different CW configurations. The highest removal of BOD5 (81%), COD (67%), TOC (72%) and fluorescing organic matter were observed in the UVF wetland, whereas the HF and FWS wetlands were the most efficient units for total nitrogen removal (60 and 69%, respectively).The SVF wetland showed a greater performance in the reduction of total nitrogen than the UVF bed (52 vs 35%). In addition, the SVF wetland exhibited a higher removal of the EOCs caffeine (95 vs 90%), trimethoprim (99 vs 87%) and sulfamethoxazole (64 vs 4%), as opposed to DEET (34 vs 63%), whose removal was superior in the UVF unit. Sucralose was negligibly removed in all the CWs. PARAFAC analysis of fluorescence measurements revealed that the proteinaceous tryptophan-like fluorescent component was the most highly removed one in all the investigated CWs (>28%) and, particularly, in the UVF wetland (66%), whereas humic and fulvic-like components resulted recalcitrant to decomposition. Increases of fluorescence intensities were often observed for fulvic-like substances in CWs operating with saturation of the bed, and these were particularly relevant in the SVF unit. Finally, important correlations (r>0.7) between the tryptophanlike fluorescent component and the water quality parameters COD and BOD5 suggest fluorescence spectroscopy as an useful monitoring tool for water treatment efficiency in CW systems.

show abstract

Section: Behavior Of Pharmaceuticals and Personal Care Productsmentioning

confidence: 89%

Removal of organic carbon, nitrogen, emerging contaminants and fluorescing organic matter in different constructed wetland configurations

Sgroi

Pelissari

Roccaro

et al. 2018

Chemical Engineering Journal

116

View full text Add to dashboard Cite

show abstract

“…Hench et al [28] first used community level physiological profiling, borrowing from soil scientists and the development of micro-titre plates for soil bacteria differentiation [29,30]. It was, however, not until recently (for example see Button et al [19]) that the carbon sources on the plate were truly considered as measures for organic degradation and used in data interpretation and TW optimization recommendations. Molecular based techniques have been more recently been used and will be discussed later.…”

Section: Resultsmentioning

confidence: 99%

“…This was the only way to gather consistent information throughout the entire process, however it is identified that small biases may exist. For example, the corresponding author of Button et al [19] is from North America, even though the actual systems studied are in Europe. System configuration was gathered through the authors own system configuration identification, or from provided schematics and other descriptions.…”

Section: Phase Two-2013 To 2016mentioning

confidence: 99%

Microbial Community Assessment in Wetlands for Water Pollution Control: Past, Present, and Future Outlook

Weber

2016

Water

View full text Add to dashboard Cite

Abstract:The field of treatment wetlands (TWs) is rapidly expanding and, arguably, is tasked with studying and understanding one of the most complex water treatment systems available. Microbial communities are generally considered to be responsible for the majority of wastewater constituent degradation in TWs. However, they are also known to be spatially heterogeneous, temporally dynamic, as well as structurally and functionally diverse. Presented here is a meta-analysis of all peer reviewed TW journal articles which utilized a microbial community assessment methodology over the period of 1988 to July 2016. A total of 1101 papers were reviewed, 512 from 1988 to 2012, 215 of which included a microbial community assessment aspect and were subsequently classified as representing past research, and 589 from 2013 to July 2016, 196 of which were classified as representing current TW microbial community research. In general, TW microbial community research has increased over time, with a marked surge in the past four years. Microbial community structure is currently the most commonly used methodological type followed by activity, enumeration and function, respectively. Areas of research focus included nitrogen transformations (156), organic degradation (33), and emerging contaminants (32), with general characterization studies also accounting for a significant proportion (243). Microbial communities from a range of TW systems have been investigated over the last four years with meso-scale (10-1000 L) being the most commonly studied system size followed by large-scale (>100,000 L), micro-scale (<10 L), and pilot-scale (1000-100,000 L). Free water surface flow (SF), horizontal subsurface flow (HF), and vertical flow (VF) systems are being studied in approximately equal proportions with the majority of studies focused on gaining fixed media/biofilm samples for analysis (rather than from the rhizosphere or interstitial water). Looking at efforts from a regional perspective shows Asia to be publishing the majority of research with a main focus on VF systems and structural community assessment. European and North American studies are generally more evenly distributed among structure, function, activity, and enumeration with the majority of studies completed on HF systems. South America, Africa, and Oceania published fewer studies but focused on structural community assessment with a selection of HF, SF and VF investigations. Great strides are being made in the field of microbial community assessment in TWs with functional assessment methods being developed, better utilized, and being related directly to water treatment. The use of high-powered metagenomics sequencing such as Illumina HiSeq instrumentation is on the rise, as is the development and utilization of functional assays such as DNA microarrays and community level physiological profiling allowing for more complete community assessment. Used in concert with activity, enumeration and newly implemented stable isotope methodologies, the field of TWs is certainly moving a...

show abstract

“…The above parameters are usually calculated in the analysis of results of the physiological profile assessment to compare two or more communities (Akmal et al, 2005;Boshoff et al, 2014;Button et al, 2015;Garau et al, 2007;Wu et al, 2013). These indicators take into account in one way or another, the amount of utilized organic substrates and the utilization intensity.…”

Section: Resultsmentioning

confidence: 99%

“…In order to characterize the community-level physiological profile a number of key characteristics were assessed (Boshoff et al, 2014;Button et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

Influence of Cadmium and Glucose on Soil Microbial Communities

Gilmullina¹,

Galitskaya²,

Selivanovskaya³

2015

American Journal of Applied Sciences

View full text Add to dashboard Cite

A laboratory-based simulation of exposure of the soil community in a gray forest soil to cadmium and glucose has been conducted. It was established that while growing in a fertile medium microbial communities isolated from a soil sample contaminated with cadmium have a substantially increased phase of growth delay and there is a reduction in total growth. While analyzing communities by Biolog Ecoplate method, it was found that, as compared to the community isolated from a soil rich in glucose, the community in a soil with cadmium is characterized by significantly lower AWCD, R and H indices, in which the differences increase with time of incubation. Also differences in the pattern and rate of recyclable substrates have been revealed. The resulting data suggest changes in the functional activity of the microbial community in the soil under the influence of cadmium.

show abstract

Microbial community metabolic function in subsurface flow constructed wetlands of different designs

Cited by 104 publications

References 22 publications

Removal of organic carbon, nitrogen, emerging contaminants and fluorescing organic matter in different constructed wetland configurations

Removal of organic carbon, nitrogen, emerging contaminants and fluorescing organic matter in different constructed wetland configurations

Microbial Community Assessment in Wetlands for Water Pollution Control: Past, Present, and Future Outlook

Influence of Cadmium and Glucose on Soil Microbial Communities

Contact Info

Product

Resources

About