Poster Sessions

While interactions between canonical nitrifiers have been investigated extensively, the extent to which comammox bacteria interact with canonical nitrifiers is as yet not well understood. The objectives of this study were to determine if comammox bacteria and canonical nitrifiers exhibit concentra...

Context. Biofilm formation in drinking water distribution systems (DWDS), which leads to numerous operational problems, i.e. secondary water contamination, pipe degradation and increased flow resistance, is influenced by many factors. Among these, surface characteristics, and thus pipe materials, ha...

Context. Ultrapure water factory in Emmen (Netherlands) utilizes Biological Oxygen-dosed Activated Carbon (BODAC) filters to produce ultrapure water from wastewater. BODAC filters comprised of a series of five pre- and post-filters, regularly flushed with oxygen, and have been continuously operated ...

Drinking water distribution systems (DWDS) are unique engineering environments that are important routes for the acquisition and dissemination of antibiotic resistance. Antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in drinking water pose risks to human and environmental ...

Context. Wet anaerobic digestion is a promising technology for organic waste treatment and energy recovery. Diverse microorganisms are the basis of anaerobic biological treatment process, which sequentially shift under the selective pressure induced by operation parameter and environmental factors....

In order to solve the growing need of excess sludge (ES) disposal in China, anaerobic digestion with thermal hydrolysis (THP-AD) is gaining more and more applications. However, engineering microbial ecology in THP-AD is still not clear. Accordingly, four full-scale THP-AD which were operated under ...

Pesticides and other micropollutants are often found in groundwater above the limits set by the EU. To ensure safe drinking water, drinking water production relies on energy-intensive adsorption or advanced oxidation technologies. Biodegradation, the major process for xenobiotics' natural attenuatio...

Context. Changes in drinking water treatment can affect the biofilm in the drinking water distribution system (DWDS) and enhanced monitoring is recommended to guarantee drinking water safety after substantial process modifications. Ultrafiltration was introduced in 2016 to the drinking water treatm...

Context. The discovery of complete ammonia oxidation (comammox) bacteria has challenged the paradigm of the classical two-step nitrification. Comammox bacteria are widely distributed in wastewater treatment plants, accounting for 0.02-0.57% of the bacterial community.They exhibited relative...

Abstract. This work reports on the development of a psychrophilic and acidophilic sulfate-reducing bacterial (SRB) consortium from Arctic mine sediments and demonstrated to be successful in removing sulfate and metals at low temperature and acidic pH. The enriched inoculum at varying pH (3–7) and...

The study of archaeal microbiota is currently hindered by methodological constraints and a constant expansion of this life Domain. In amplicon sequencing surveys, the use of universal primers eventually results in a PCR bias, overlooking different archaeal taxons. Furthermore, archaeal taxonomic st...

Nitrogen removal from wastewater involves design and operational strategies that are based on the kinetic characteristics of strict ammonia oxidizer bacteria (AOB) and nitrite oxidizing bacteria (NOB). Several studies in wastewater have found complete nitrifiers related to Ca. Nitrospira nitrosa as ...

Clean groundwater is an essential source of drinking water. However, its quality is threatened by contamination with organic micropollutants (OMPs) arising from our use of pharmaceuticals, household chemicals, and pesticides. This presentation introduces the challenges of OMPs in drinking water aqui...

ContextHigher pressure on water sources, combined with more frequent droughts, potentially calls for a different view on wastewater, and for increased reuse. To achieve a reusable water, a safe removal of pathogens is needed. GapGranular activated carbon (GAC) is commonly used for drinking water tr...

The Saprospiraceae family is a very diverse family within the phylum Bacteroidetes, commonly present in high abundance in wastewater treatment plants (WWTPs) worldwide, such as the genus OLB8, but little is known about their function and importance. The genera described are characterized by rod-shap...

Impervious surfaces in Texas have increased faster than any other states in the U.S. in the past few decades. Heavy metals run off generating from pavements, automobiles and oil spills are of great concern due to their negative impacts on habitats and human health. Conventional remedial methods reco...

Electrogenic bacteria (EB) are able to displace respiratory electrons to solid phase terminal electron acceptors. These can be an electrode in a bioelectrochemical system where the electrons are captured as current or, in natural environments, metal oxides. Electrogenic bacteria have been studied as...

Context:Granular sludge-based upflow anaerobic sludge blanket (UASB) reactors are an established technology for treatment of high strength wastewaters due to excellent biomass retention, allowing for compact reactor design. The globally growing population and closure of water cycles results in incre...

Context.The discovery of complete ammonia-oxidizing (comammox) Nitrospirahas added an important new process to the microbial nitrogen cycle.Gap.While comammox Nitrospira have been detected in various ecosystems, very few study has achieved selective enrichment of comammox Nitrospira over other canon...