The Experts below are selected from a list of 110253 Experts worldwide ranked by ideXlab platform
Frederik Hammes - One of the best experts on this subject based on the ideXlab platform.
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metagenomic characterization of biofilter microbial communities in a full scale drinking Water Treatment Plant
Water Research, 2018Co-Authors: Seungdae Oh, Frederik HammesAbstract:Abstract Microorganisms inhabiting filtration media of a drinking Water Treatment Plant can be beneficial, because they metabolize biodegradable organic matter from source Waters and those formed during disinfection processes, leading to the production of biologically stable drinking Water. However, which microbial consortia colonize filters and what metabolic capacity they possess remain to be investigated. To gain insights into these issues, we performed metagenome sequencing and analysis of microbial communities in three different filters of a full-scale drinking Water Treatment Plant (DWTP). Filter communities were sampled from a rapid sand filter (RSF), granular activated carbon filter (GAC), and slow sand filter (SSF), and from the Schmutzdecke (SCM, a biologically active scum layer accumulated on top of SSF), respectively. Analysis of community phylogenetic structure revealed that the filter bacterial communities significantly differed from those in the source Water and final effluent communities, respectively. Network analysis identified a filter-specific colonization pattern of bacterial groups. Bradyrhizobiaceae were abundant in GAC, whereas Nitrospira were enriched in the sand-associated filters (RSF, SCM, and SSF). The GAC community was enriched with functions associated with aromatics degradation, many of which were encoded by Rhizobiales (∼30% of the total GAC community). Predicting minimum generation time (MGT) of prokaryotic communities suggested that the GAC community potentially select fast-growers (
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metagenomic characterization of biofilter microbial communities in a full scale drinking Water Treatment Plant
Water Research, 2018Co-Authors: Frederik Hammes, Wen Tso LiuAbstract:Microorganisms inhabiting filtration media of a drinking Water Treatment Plant can be beneficial, because they metabolize biodegradable organic matter from source Waters and those formed during disinfection processes, leading to the production of biologically stable drinking Water. However, which microbial consortia colonize filters and what metabolic capacity they possess remain to be investigated. To gain insights into these issues, we performed metagenome sequencing and analysis of microbial communities in three different filters of a full-scale drinking Water Treatment Plant (DWTP). Filter communities were sampled from a rapid sand filter (RSF), granular activated carbon filter (GAC), and slow sand filter (SSF), and from the Schmutzdecke (SCM, a biologically active scum layer accumulated on top of SSF), respectively. Analysis of community phylogenetic structure revealed that the filter bacterial communities significantly differed from those in the source Water and final effluent communities, respectively. Network analysis identified a filter-specific colonization pattern of bacterial groups. Bradyrhizobiaceae were abundant in GAC, whereas Nitrospira were enriched in the sand-associated filters (RSF, SCM, and SSF). The GAC community was enriched with functions associated with aromatics degradation, many of which were encoded by Rhizobiales (∼30% of the total GAC community). Predicting minimum generation time (MGT) of prokaryotic communities suggested that the GAC community potentially select fast-growers (<15 h of MGT) among the four filter communities, consistent with the highest dissolved organic matter removal rate by GAC. Our findings provide new insights into the community phylogenetic structure, colonization pattern, and metabolic capacity that potentially contributes to organic matter removal achieved in the biofiltration stages of the full-scale DWTP.
Seungdae Oh - One of the best experts on this subject based on the ideXlab platform.
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metagenomic characterization of biofilter microbial communities in a full scale drinking Water Treatment Plant
Water Research, 2018Co-Authors: Seungdae Oh, Frederik HammesAbstract:Abstract Microorganisms inhabiting filtration media of a drinking Water Treatment Plant can be beneficial, because they metabolize biodegradable organic matter from source Waters and those formed during disinfection processes, leading to the production of biologically stable drinking Water. However, which microbial consortia colonize filters and what metabolic capacity they possess remain to be investigated. To gain insights into these issues, we performed metagenome sequencing and analysis of microbial communities in three different filters of a full-scale drinking Water Treatment Plant (DWTP). Filter communities were sampled from a rapid sand filter (RSF), granular activated carbon filter (GAC), and slow sand filter (SSF), and from the Schmutzdecke (SCM, a biologically active scum layer accumulated on top of SSF), respectively. Analysis of community phylogenetic structure revealed that the filter bacterial communities significantly differed from those in the source Water and final effluent communities, respectively. Network analysis identified a filter-specific colonization pattern of bacterial groups. Bradyrhizobiaceae were abundant in GAC, whereas Nitrospira were enriched in the sand-associated filters (RSF, SCM, and SSF). The GAC community was enriched with functions associated with aromatics degradation, many of which were encoded by Rhizobiales (∼30% of the total GAC community). Predicting minimum generation time (MGT) of prokaryotic communities suggested that the GAC community potentially select fast-growers (
T. Warneke - One of the best experts on this subject based on the ideXlab platform.
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Methane emission estimates using chamber and tracer release experiments for a municipal waste Water Treatment Plant
Atmospheric Measurement Techniques, 2015Co-Authors: C. E. Yver Kwok, C. Caldow, B. Lebègue, J. G. Mønster, Chris W. Rella, Michel Ramonet, D. Muller, Charlotte Scheutz, Michael Schmidt, T. WarnekeAbstract:This study presents two methods for estimating methane emissions from a waste Water Treatment Plant (WWTP) along with results from a measurement campaign at a WWTP in Valence, France. These methods, chamber measurements and tracer release, rely on Fourier transform infrared spectroscopy and cavity ring-down spectroscopy instruments. We show that the tracer release method is suitable for quantifying facility- and some process-scale emissions, while the chamber measurements provide insight into individual process emissions. Uncertainties for the two methods are described and discussed. Applying the methods to CH4 emissions of the WWTP, we confirm that the open basins are not a major source of CH4 on the WWTP (about 10 % of the total emissions), but that the preTreatment and sludge Treatment are the main emitters. Overall, the waste Water Treatment Plant is representative of an average French WWTP.
Carlos Mauricio Fontes Vieira - One of the best experts on this subject based on the ideXlab platform.
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incorporation of sludge waste from Water Treatment Plant into red ceramic
Construction and Building Materials, 2008Co-Authors: Sergio Neves Monteiro, Jonas Alexandre, J I Margem, R Sanchez, Carlos Mauricio Fontes VieiraAbstract:Abstract The influence of the firing temperature on the technological properties of red ceramics made of a kaolinitic clay incorporated with a sludge from Water Treatment Plant was evaluated. The sludge was initially submitted to characterization tests to determine its particle size distribution, chemical composition, mineralogical composition, thermal behavior and morphological aspects. Mixtures were prepared with amounts of 0, 3, 5 and 10 wt% of sludge incorporated into the clayey body. Rectangular specimens were obtained by 20 MPa pressure molding and then fired at 700, 900 and 1100 °C in a laboratory furnace. Ceramic properties related to the bulk density, linear shrinkage, Water absorption and flexural rupture strength were determined. The results indicated that the incorporation of the sludge increase the Water absorption and reduce the mechanical strength of the clayey fired ceramic. This is a consequence of the changes caused in the porosity by the relatively elevated weight loss during the firing stage.
Wen Tso Liu - One of the best experts on this subject based on the ideXlab platform.
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metagenomic characterization of biofilter microbial communities in a full scale drinking Water Treatment Plant
Water Research, 2018Co-Authors: Frederik Hammes, Wen Tso LiuAbstract:Microorganisms inhabiting filtration media of a drinking Water Treatment Plant can be beneficial, because they metabolize biodegradable organic matter from source Waters and those formed during disinfection processes, leading to the production of biologically stable drinking Water. However, which microbial consortia colonize filters and what metabolic capacity they possess remain to be investigated. To gain insights into these issues, we performed metagenome sequencing and analysis of microbial communities in three different filters of a full-scale drinking Water Treatment Plant (DWTP). Filter communities were sampled from a rapid sand filter (RSF), granular activated carbon filter (GAC), and slow sand filter (SSF), and from the Schmutzdecke (SCM, a biologically active scum layer accumulated on top of SSF), respectively. Analysis of community phylogenetic structure revealed that the filter bacterial communities significantly differed from those in the source Water and final effluent communities, respectively. Network analysis identified a filter-specific colonization pattern of bacterial groups. Bradyrhizobiaceae were abundant in GAC, whereas Nitrospira were enriched in the sand-associated filters (RSF, SCM, and SSF). The GAC community was enriched with functions associated with aromatics degradation, many of which were encoded by Rhizobiales (∼30% of the total GAC community). Predicting minimum generation time (MGT) of prokaryotic communities suggested that the GAC community potentially select fast-growers (<15 h of MGT) among the four filter communities, consistent with the highest dissolved organic matter removal rate by GAC. Our findings provide new insights into the community phylogenetic structure, colonization pattern, and metabolic capacity that potentially contributes to organic matter removal achieved in the biofiltration stages of the full-scale DWTP.
