9 Result(s)
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Article
Open AccessCatabolism and interactions of uncultured organisms shaped by eco-thermodynamics in methanogenic bioprocesses
Current understanding of the carbon cycle in methanogenic environments involves trophic interactions such as interspecies H2 transfer between organotrophs and methanogens. However, many metabolic processes are th...
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Article
Open AccessMachine learning-aided analyses of thousands of draft genomes reveal specific features of activated sludge processes
Microorganisms in activated sludge (AS) play key roles in the wastewater treatment processes. However, their ecological behaviors and differences from microorganisms in other environments have mainly been stud...
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Article
Open AccessQuantifying the contribution of microbial immigration in engineered water systems
Immigration is a process that can influence the assembly of microbial communities in natural and engineered environments. However, it remains challenging to quantitatively evaluate the contribution of this pro...
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Article
Open AccessCoupling growth kinetics modeling with machine learning reveals microbial immigration impacts and identifies key environmental parameters in a biological wastewater treatment process
Ubiquitous in natural and engineered ecosystems, microbial immigration is one of the mechanisms sha** community assemblage. However, quantifying immigration impact remains challenging especially at individua...
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Article
Open AccessEffect of divalent ions and a polyphosphate on composition, structure, and stiffness of simulated drinking water biofilms
The biofilm chemical and physical properties in engineered systems play an important role in governing pathogen transmission, fouling facilities, and corroding metal surfaces. Here, we investigated how simulat...
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Article
Open AccessUgly ducklings—the dark side of plastic materials in contact with potable water
Bath toys pose an interesting link between flexible plastic materials, potable water, external microbial and nutrient contamination, and potentially vulnerable end-users. Here, we characterized biofilm communi...
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Article
Direct treatment of high-strength soft drink wastewater using a down-flow hanging sponge reactor: performance and microbial community dynamics
A stand-alone down-flow hanging sponge (DHS) system with a two-stage configuration was operated for 700 days to treat synthetic soft drink wastewater at 3000 mg/L chemical oxygen demand (COD). Throughout the o...
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Article
Global metabolomic responses of Nitrosomonas europaea 19718 to cold stress and altered ammonia feeding patterns
The model ammonia-oxidizing bacterium Nitrosomonas europaea represents one of the environmentally and biotechnologically significant microorganisms. Genome-based studies over the last decade have led to many intr...
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Article
Effects of hydraulic retention time on aerobic granulation and granule growth kinetics at steady state with a fast start-up strategy
A hydraulic retention time (HRT) of 4, 6, and 8 h was employed, respectively, in three reactors to study the effects of HRT on granulation with a newly developed fast granulation strategy, i.e., a strategy by ...
