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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7.7/10

Active assimilators of soluble microbial products in wastewater anammox processes Rui Xiao1, Shaoyi Xu1, Huijie Lu1*1Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China* e-ma...

Poster Session 5: Systems microbiology approaches
Poster Presentation
8/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
8/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7/10

Global population will reach 10 billion by 2050, threatening food security and fresh water resources due to discharges of organic micropollutants (OMPs). Circular solutions enable efficient resource use, but pose risks due to OMP recirculation. This study presents a membrane-aerated bioreactor (MABR...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7/10

Sewage surveillance of the new SARS-CoV-2 virus, also referred to as Wastewater-based Epidemiology (WBE), has started to be utilized as a tool to support clinical epidemiology and for the overall understanding of disease spread. Weekly wastewater samples were collected from two treatment plants in S...

8. (Waste)water-based epidemiology, microbial risk assessment
Poster Presentation
6.7/10

Context. Recent progress in on-line microbiological measurement instruments has allowed real-time monitoring of drinking water distribution systems (DWDSs), uncovering microbiological dynamics and empowering the development of early-warning systems.Gap. While these instruments have become more comm...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
6.3/10

Context. To retain slow growing bacteria, biofilms are commonly used in biological nitrogen removal of wastewater treatment. One of these processes is partial nitritation-anammox (PNA), where ammonia-oxidizing bacteria (AOB) and anammox bacteria coexist in the biofilm.Gap. Studies on biofilm bioreac...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
8/10

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 ...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
8/10

Intermittent water supply (IWS), the provision of potable water non-continuously, leads to periods of stagnation with conditions favorable for biofilm growth. Regular repressuring of pipes at the beginning of each supply cycler has been shown to shear off biofilms from pipewalls and transfer inhabit...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
8/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
5.7/10

Nitrous oxide (N2O) is a very potent greenhouse gas, and mentioned as the dominant ozone-depleting substance of the 21st century. This compound has a 300 times higher climate warming potential than CO2 and it is one of the main contributors to the greenhouse footprint of wastewater treatment plants ...

Poster Session 5: Systems microbiology approaches
Poster Presentation
8.5/10

Context: Wastewater treatment plants (WWTPs) process large quantities of waste via complex microbial communities that degrade, transform and/or take-up diverse molecules. Secreted proteins (exoenzymes) are key for such functions and usually catalyze the rate-limiting step because many are first to ...

2. Microbial processes in the water chain (surface water, groundwater, drinking water, wastewater systems)
Poster Presentation
7.7/10

High rate activated sludge (HRAS) systems, which are aerobic, are used for redirecting organics for energy recovery. The HRAS works at low sludge retention time (SRT), very short hydraulic retention time (HRT) and a high food to microorganism ratio (F/M). Effluents from these systems have a low carb...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7.7/10

Context. Effective risk assessment and control for environmental antibiotic resistance require comprehensive information of not only the composition of antibiotic resistance genes (ARGs) but also the assembly characteristics of ARG-carriers.Gap. Owing to the advancements in sequencing technologies a...

7. At-line wet-lab/dry-lab bioanalytical and omics workflows
Poster Presentation
6.3/10

Influence of Microbial Community and Biofilm Thickness in the Removal of Organic Micro Pollutants through a Membrane Aerated Biofilm ReactorSanchez-Huerta C. 1,*, Fortunato L.1, Leiknes T. 1, Hong P.-Y. 11 King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Cen...

Poster Session 5: Systems microbiology approaches
Poster Presentation
5.5/10

Several factors have been identified to play a role in enhancing extracellular DNA (eDNA) transformation by bacteria. These factors include chemical compounds such as disinfection by products (DBP) and pharmaceutical drugs; moreover, environmental stressors such as solar irradiance has been shown to...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
7/10

Context. Phages are viruses that infect bacteria and, by predation, can influence the bacterial population dynamics and, consequently, the function of a microbial community. This mechanism can compromise the efficiency of engineered systems that rely on the activity of a bacterial consortium, such ...

Poster Session 4: Managing microbial communities
Poster Presentation
7.3/10

The health challenges posed by microbial pathogens in water and biofilms are of great global concern. It is important to understand the impact of different disinfection strategies on microbiomes to facilitate water quality control. This work demonstrated the yearlong impacts of ultraviolet light-emi...

Poster Session 4: Managing microbial communities
Poster Presentation
7/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
8/10

The Biogas (rich in methane CH4) production is carried out through the process of anaerobic digestion (AD), in which residues are substrates for a microbial consortium that by their metabolism stabilize organic matter and generate by-products. Through co-digestion of residues from 1G and 2G ethanol ...

Poster Session 4: Managing microbial communities
Poster Presentation
6/10

The Edwards Aquifer serves as a primary source of drinking water to more than 2 million people in south-central Texas. As a karst aquifer, it is vulnerable to human and animal fecal contamination which poses a serious risk to human and environmental health. A one-year study (Jan 2018 – Feb 2019) a...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
6/10

Context. Fossil fuels must eventually be replaced by environmentally and economically sustainable, carbon-neutral fuels. Microalgae biomass can be a viable alternative source of third-generation biofuel production. Agri-food aqueous wastes like cheese whey from the dairying industry can become impo...

Poster Session 4: Managing microbial communities
Poster Presentation
7.5/10

Mainstream nitrogen removal by partial nitritation/anammox (PN/A) offers energy and cost savings for sewage treatment. This pathway relies on two groups of microbes: aerobic and anoxic ammonium-oxidizing bacteria. Next to these essential bacteria, undesired groups of bacteria like nitrite-oxidizi...

Poster Session 4: Managing microbial communities
Poster Presentation
7/10

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7. At-line wet-lab/dry-lab bioanalytical and omics workflows
Poster Presentation
6/10

Context. The COVID-19 pandemic has caused unprecedented disruption in all aspects of life globally. The emergence of new variants of concern (VOC) that have increased transmissibility and tout vaccine immune evasion suggests that variant tracking is required to manage the COVID-19 pandemic.Gap. Ther...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
7.7/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
6/10

High yields of agricultural produce is reached traditionally by the application of fertilizers and/or pesticides. When agricultural soil is saturated with pesticides, any pesticide addition to the soil leaches and thus reaches the underlying groundwater. Preventing further contamination and remediat...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
6.5/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
5/10

Context. The genus Tetrasphaera belongs, along with Ca. Accumulibacter and Dechloromonas, to the most abundant polyphosphate accumulating organisms (PAOs) worldwide in wastewater treatment plants with enhanced biological removal (EBPR). Several Tetrasphaera species are isolated, showing some dive...

1. Microbial ecology and the water sector
Poster Presentation
8/10

Context. Slow sand filters (SSFs) remove organic matter and microbial pathogens for drinking water production. Despite the biological nature of SSFs and their effect on flora of the finished water, much remains unknown regarding their microbial communities.Gap. No study has described the developme...

Poster Session 4: Managing microbial communities
Poster Presentation
7.5/10

Context. Granular sludge exhibits unique features, thus being a favorable platform for the cultivation of slow-growing microorganisms, such as anammox and nitrite/nitrate-dependent anaerobic methane oxidation (n-DAMO) microorganisms.Gap.While granular anammox processes have been widely applied, lit...

Poster Session 4: Managing microbial communities
Poster Presentation
8.7/10

Context. Realizing energy-efficient biological nitrogen removal requires strategies that maintain consistent modulation of nitrifying populations within the activated sludge microbiome to cease the oxidation of ammonium at nitrite. Gap. Engineering strategies designed to out-select nitrite oxidiz...

Poster Session 4: Managing microbial communities
Poster Presentation
8/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7.5/10

Context and gap: Biofilm formation on a biocarrier surface is a complex process which is not only determined by characteristics of supporting media but also affected by the type of microorganisms, initial inoculum concentration, and extracellular polymers production. Polyurethane (PU) is one of the...

Poster Session 4: Managing microbial communities
Poster Presentation
5/10

Candidatus Accumulibacter was the first microorganism identified as polyphosphate-accumulating organism (PAO), essential for phosphorus removal from wastewater. However, the lineage is quite diverse and clearly comprises multiple species. The current taxonomic framework is flawed, with the majority...

2. Microbial processes in the water chain (surface water, groundwater, drinking water, wastewater systems)
Poster Presentation
8.5/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7.3/10

Context. Activated sludge process, which is a biological wastewater treatment process, has a history of over 100 years, and has been also applied for the treatment of coke-oven wastewater discharged from steelmaking industry. Recent advances in molecular approach such as next-generation sequencing t...

Poster Session 4: Managing microbial communities
Poster Presentation
5.3/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
8.7/10

Context. Non-enzymatic structural proteins called amyloid adhesins are present in activated sludge.Gap. We hypothesize that the (strong) binding forces within activated sludge microcolonies are due to adhesin-like interactions.Aim. Identify operating conditions that stimulate or repress adhesin e...

Poster Session 4: Managing microbial communities
Poster Presentation
8/10

Due to the impact that pollution generates, especially due to the presence of pharmaceutical type traces in wastewater, it is necessary to develop and optimize biological treatment systems that are able to remove these pollutants and control the impacts that have been unleashed in natural environmen...

9. Microbiological and engineering education for water management and sanitation
Poster Presentation
5.7/10

Poster Session 5: Systems microbiology approaches
Poster Presentation
5.5/10

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 ...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
5.7/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7/10

Context. Phototrophic purple non-sulfur bacteria (PNSB) have attracted considerable attention to upgrade wastewater resources to microbial protein for animal feed. Next to their outstanding nutritional properties, they possess the unique ability to grow selectively under anaerobic conditions in the ...

Poster Session 4: Managing microbial communities
Poster Presentation
7.7/10

Polyhydroxyalkanoates (PHAs) are completely biodegradable polymers, that can be synthesized from renewable carbon resources and with important thermo-plastic properties. During last years, an uncoupled C and N-feeding strategy has been applied in sequencing batch reactors (SBRs) in order to stim...

Poster Session 4: Managing microbial communities
Poster Presentation
6.7/10

Potable water systems are often contaminated with the opportunistic pathogenic bacteria Legionella pneumophila. Growth of the pathogen in buildings is affected by operational settings, system design, water use patterns, and unplanned disruptive events.The impact of technical interventions on Legione...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
6.3/10

Medium-chain carboxylic acids (MCCA) are saturated fatty acids containing between 6 and 12 carbon atoms, including a carboxylic group. MCCA are generally produced from fossil sources by chemical processes or extracted from natural oils. The use of bacterial consortia instead of pure cultures in the ...

Poster Session 4: Managing microbial communities
Poster Presentation
6/10

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....

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7/10

Bulking sludge has been an operational problem of great interest in which filamentous bacteria (FB) have been shown to be the main cause. Recent evidence states that 90% of the sludge bulking cases is caused by the overgrowth of FB. A recent Belgian study revealed that 36% of the 90 studied industri...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
4.5/10

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 ...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
8.7/10

Context. Extracellular DNA (exDNA) is an emerging contaminant in wastewater which cannot be removed efficiently due to their small molecular size and poor settleability. Hence it can be disseminated into environment by water reuse. Gap. The movement of exDNA across wastewater treatment is unknown...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
7/10

Context.Microorganisms in wastewater treatment plants (WWTPs) are essential for water purification to protect public and environmental health. The diversity andassembly of bacterial communities in wastewater treatment plants (WWTPs) is thought to have a direct influence on system performance.Gap.S...

Poster Session 4: Managing microbial communities
Poster Presentation
7.5/10

Biodesulfurization (BD) under haloalkaline conditions removes H2S from gas streams and converts it to elemental sulfur by using haloalkaliphilic sulfur-oxidizing bacteria (SOB). In this process, gas is first absorbed in an absorber and oxidized into sulfur in an aerated bioreactor. Recently, the BD ...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7/10

A functioning anaerobic digestion(AD) microbiome is integral for sludge management to be successful. Comprehensive ecological insights, and a full accounting of important microbial species, can help to improve and validate operational strategies. We analyzed a time-series of metagenome samples obta...

Poster Session 5: Systems microbiology approaches
Poster Presentation
8/10

Context. The Alberta oil sands industry has amassed over 1 trillion litres of fluid tailings containing toxic compounds such as naphthenic acids. End-pit lakes have been proposed as a long-term reclamation strategy and Base Mine Lake (BML) is the only full-scale end-pit lake in the Canadian oil san...

Poster Session 5: Systems microbiology approaches
Poster Presentation
5.5/10

Context. Decentralized highstrength wastewater treatment can be accomplished in microbial electrochemical cells (MEC), in which anode-respiring bacteria (ARB) degrade organic matter to respire electrons to an electrode (anode), generating an electrical current that can be used for producing electric...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7/10

Membrane bioreactors (MBR) have better removal of emerging organic contaminants such as antibiotics, antibiotic resistance genes (ARG) and microbial contaminants compared to activated sludge processes. In addition, anaerobic membrane bioreactors (AnMBR) have advantages over aerobic configuration as ...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
3.7/10

SARS-CoV-2 has genetically changed since the first infections. The quick adaption of the virus to the new host led to mutations in the binding sites of the spike protein, which is known to increase the infectivity of the virus (Korber et al., 2020). The genome sequencing of wastewater has developed ...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
8/10

Thailand has a large numbers of cassava pulp residues from agro-industries. Though it is rich in carbohydrate, their utilization is limited due to the low content of protein and poor digestibility resulting to low methane production rate. To improve the utilization efficiency of cassava pulp residue...

Poster Session 4: Managing microbial communities
Poster Presentation
6.7/10

Context. Ozonation is a used for drinking water preparation and to reduce assimilable organic matter and remove hazardous ozonation byproducts, ozonation is frequently followed by biofiltration, such as passage through slow sand filters (SSFs). The disinfectant properties of the ozone causes shifts ...

Poster Session 4: Managing microbial communities
Poster Presentation
8/10

Introduction: Anaerobic digestion (AD) at wastewater treatment plants (WWTPs) is carried out by groups of microorganisms, active in complex metabolic networks. Recent studies of community structure have shown that there are two large fractions, growing and non-growing, the latter being up > 40% of ...

Poster Session 4: Managing microbial communities
Poster Presentation
6.7/10

Wastewater-based disease surveillance is a promising approach for monitoring community outbreaks. Here we describe a nationwide campaign to monitor SARS-CoV-2 in the wastewater of 159 counties in 40 U.S. states, covering 13% of the U.S. population from February 18 to June 2, 2020. Out of 1,751 total...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
6.5/10

Context. The performance of activated sludge systems is dependent on the growth kinetics of core microbial community (Saunders et al. 2016). To date, the design of many wastewater treatment plants (WWTPs) in the tropics are adopting default growth kinetic parameters from the temperate climate reg...

Poster Session 5: Systems microbiology approaches
Poster Presentation
6.3/10

Due to widespread use of antibiotics in food production, it is highly likely that various antibiotic resistance genes (ARGs) are present in food waste.While a number of studies on ARGs fate other organic waste treatments exist, food waste as an ARG source remains understudied.In this study, the fate...

8. (Waste)water-based epidemiology, microbial risk assessment
Poster Presentation
7.3/10

Assembling genomes from metagenomic short-read data can be challenging due to sequencing errors, depth of sequencing coverage and the unknown and uneven complexity of microbial communities. Reconstructing high-quality genomes is a crucial part of the metagenomic workflow as subsequent ecological and...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
8/10

The production of lactic acid (HLa) has attracted a great deal of attention due to its widespread applications in food, chemical, cosmetic, plastic and pharmaceutical industries. HLa is produced from glucose derived from starchy materials, which impacts its production cost and competes with food sup...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
5.3/10

Context. The anaerobic digesters have potential to produce 14,000 TWh from currently available feedstocks, corresponding to 6-9 % of the world's energy consumption. Gap. While the gas-producing microbiota are well described and understood, little is known about the hydrolysing microorganisms, alt...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7/10

Context. SARS-CoV-2 wastewater-based epidemiology (WBE) has been advanced as a relevant indicator of distribution of COVID-19 in communities, supporting classical testing and tracing epidemiological approaches.Gap. Up to now, there are not many studies on a large geographical scale combining severa...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
6.5/10

Context. Slow sand filtration (SSF) is widely used in drinking water treatment plants (DWPTs) as a cost-effective and safe approach to remove contaminants like particles, organic matter and microorganisms from drinking water. The removal primarily occurs in the top layer of the mature sand bed, kno...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
6.5/10

Understanding the changes in microbial communities from source to tap water after water stagnation is important for process control and risk management. However, little information is available on the fate of microbial communities from source to tap water after stagnation. This study aims to evaluat...

Poster Session 4: Managing microbial communities
Poster Presentation
7/10

Context. Mainstream nitritation in municipal wastewater treatment is challenging, due to the low bulk ammonium concentrations and low temperatures. It is especially challenging for biofilm processes, where NOB are more easily retained.Gap. Hydroxylamine addition has been proposed as a solution bec...

Poster Session 4: Managing microbial communities
Poster Presentation
7/10

Context. Success of the partial nitration/anammox (PNA) process relies on a balance of the microbial guilds of aerobic (AOB) and anaerobic ammonia oxidizing bacteria (AnAOB) as well as the suppression of nitrite oxidizing bacteria (NOB). Heterotrophic bacteria (HB) often constitute a large portion ...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7.5/10

Evaluation of organic carbon migration and biomass formation on polymeric pipes using the modified BioMig Thi Huyen Duong, Ji Won Park, Jin Hyung Noh, Sung Kyu Maeng*Department of Civil and Environmental Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea....

2. Microbial processes in the water chain (surface water, groundwater, drinking water, wastewater systems)
Poster Presentation
5.7/10

To reduce the spread of COVID-19, students and workers in many sectors were placed under stay-at-home orders, leading to significant decreases in water demand in many non-residential areas. Previous research has associated increased water age with increased microbial abundance, metals, and other con...

5. Engineering and managing microbial communities
Poster Presentation
7/10

Context. Aerobic granular sludge (AGS) bioprocess allows to remove nutrients from wastewater. AGS can be obtained from enhanced biological phosphorous removal reactors after applying specific operational conditions for granulation.Gap. Functional activities and microorganisms involved in the nutrien...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
6/10

Chloroflexi are found in very different ecosystems such as aerobic and anaerobic Carbon removal reactors and even in Nitrogen removal systems. But their role is not yet understood. Then, we ask ourselves: are Chloroflexi members found in different reactors closely phylogenetically related? have they...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
5.5/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
7/10

Context. A member of the candidate phylum radiation (CPR) of bacteria was recently shown to lyse cells of Gordonia amarae which is known to cause foaming in wastewater treatment plants(Batinovic et al. 2021). The ability to kill G. amarae suggests that CPR bacteria could potentially be used as a bio...

3. New microbial processes for water engineering
Poster Presentation
8/10

Context. Cheese whey, an aqueous by-product of the dairying industry with high organic load, has 42% of its annual production (154 Mm3·y-1) underutilized as animal feed, fertilizer or discharged in surface water leading to eutrophication. Gap. Volatile fatty acids (VFAs) p...

Poster Session 4: Managing microbial communities
Poster Presentation
6/10

Nitrous oxide (N2O) production in autotrophic nitrogen conversion processes can be significant and requires further understanding. We operated an intermittently aerated partial nitritation/anammox (PN/A) sequencing batch reactor. Net N2O production rates increased in the aerated phase and decreased ...

Poster Session 5: Systems microbiology approaches
Poster Presentation
9/10

Context. Arboviruses (arthropod-borne viruses) are pathogens that impose a great social and economic burden globally. Clinical surveillance of arbovirus outbreaks is insufficient to assess the true prevalence as a large proportion of cases exhibit no or only mild clinical symptoms such as reported f...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
8/10

Context. Phosphate is an important, but scarce resource. Recycling of phosphate from wastewater is one way to solve this problem, a process where polyphosphate-accumulating organisms(PAOs), such as the well-known genera Candidatus Accumulibacter, Tetrasphaera, along with the recently confirmed Dech...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
7/10

Context. Wastewater surveillance has emerged as a useful tool in the public health response to the COVID-19 pandemic.Gap. While wastewater surveillance has been applied at various scales to monitor population-level COVID-19 dynamics, there is a need for quantitative metrics to interpret wastewater d...

Poster Session 1: Epidemiology and risk assessment
Poster Presentation
8/10

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 ...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
4.5/10

Due to the complexity of microbiome composition and interactions, it remains challenging to uncover the bioreactor "black-box" and to predict bioreactor dynamics (e.g., anaerobic digestion) through linking the microbial community, operational factors and system performances. Previous studies have fo...

Poster Session 5: Systems microbiology approaches
Poster Presentation
7.5/10

Low impact developments are one of the main tools to improve stormwater quality. Stormwater control measures (SCMs) have been developed to help address the growing urban stormwater problem. Stormwater basins such as detention and retention basins are used to address these concerns. These basins comm...

2. Microbial processes in the water chain (surface water, groundwater, drinking water, wastewater systems)
Poster Presentation
5/10

Context:The study of (meta-)genomics data has been providing scientists with valuable insights into the functioning and composition of microbial communities. Latest advancements in high-throughput sequencing technologies have resulted in significant growth in the data produced and made available for...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
7.3/10

Polyhydroxyalkanoates can be produced using surplus activated sludge from biological wastewater treatment processes. This direct accumulation requires that the WWTP imposes inherent selection pressures to promote for PHA accumulating microorganisms. Direct accumulation may reach PHA contents of 0.50...

Poster Session 2: Microbial ecology and water practice
Poster Presentation
7.5/10

Emergence of bacterial infections resistant to last resort antibiotics, such as beta-lactams, is an increasing human health concern. Extended-spectrum beta-lactamases (ESBLs) are mostly encoded on plasmids (i.e., mobile genetic elements) and can easily spread via horizontal gene transfer. Wastewater...

1. Microbial ecology and the water sector
Poster Presentation
7.7/10

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...

Poster Session 3: Microbial processes in water systems and engineering
Poster Presentation
4/10

Context. Understanding how chlorination impacts bacteria in the drinking water distribution system (DWDS) and biofilm can support decision making and microbial risk assess.Gap. A number of studies compare between different DWDS with different chlorination regimes. At full scale, however, the numbe...

Poster Session 4: Managing microbial communities
Poster Presentation
8/10

Context. Polyphosphate accumulating organisms (PAOs) can promote P removal in enhanced biological phosphorus removal (EBPR) systems. The most commonly observed organisms thought to be PAOs are Accumulibacter and Tetrasphaera.Gap. All Accumulibacter and Tetrasphaera are typically assumed to remove ...

Poster Session 4: Managing microbial communities
Poster Presentation
7.7/10

The importance of water quality for human consumption comprises different parameters, microbiological and chemical, including the concentration of metals, one of them manganese (Mn) which is abundant in the earth and exists as a component of more than 30 kinds of manganese oxides/hydroxide minerals....

Poster Session 2: Microbial ecology and water practice
Poster Presentation
6.5/10

Water conservation efforts have led to decreased water flow in buildings. Without resizing pipes and storage tanks, water retention time (WRT) increases, which may support opportunistic pathogen (OP) growth. Decreasing pipe diameters would allow lower flow volumes without increasing WRT. However, s...

Poster Session 4: Managing microbial communities
Poster Presentation
7.7/10