Publications by authors named "Yuyi Gu"

Article Synopsis
  • Sulfur autotrophic denitrification (SAD) utilizes elemental sulfur for treating secondary effluent in wastewater treatment plants, but high dissolved oxygen (DO) levels can hinder this process.
  • The study found that low to moderate DO levels don’t negatively impact nitrate removal rates (NRR), but high DO levels significantly reduce NRR due to competition for electrons and decreased sulfur-oxidizing bacteria.
  • Implementing internal reflux as a strategy can help counteract the negative effects of high DO, with an optimal reflux ratio of 0.5 increasing NRR by 1.5 times when treating real membrane bioreactor effluent.
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With the ability to generate in situ real-time electric signals, electrochemically active biofilm (EAB) sensors have attracted wide attention as a promising water biotoxicity early-warning device. Organic matters serving as the electron donors potentially affect the electric signal's output and the sensitivity of the EAB sensor. To explore the influence of organic matters on EAB sensor's performance, this study tested six different organic matters during the sensor's inoculation.

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Introduction: White is a popular edible mushroom. It is rich in nutrition and flavor but vulnerable to fungal disease, resulting in nutrient loss and aging.

Methods: In this study, the pathogenic fungus spp.

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The development of carbon-neutral fuel sources is an essential step in addressing the global fossil energy crisis. Whole-cell biophotovoltaic systems (BPVs) are a renewable, non-polluting energy-generating device that utilizes oxygenic photosynthetic microbes (OPMs) to split water molecules and generate bioelectricity under the driving of light energy. Since 2006, BPVs have been widely studied, with the order magnitudes of power density increasing from 10 mW/m to 10 mW/m.

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As serious water ecological pollution caused by toxicant leakage occurs frequently, early-warning for toxicity presented in water environment attracts increasing attentions as it saves time to retain water safety and human health. Electrochemically active biofilm (EAB) sensor is a promising device for in situ real-time water toxicity early-warning. To improve the sensitivity of EAB sensor particularly for low-concentration toxicity warning, this study employed titanium mesh (TiM) as the anode to construct an EAB sensor.

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Microbial extracellular electron transfer (EET) plays a crucial role in bioenergy production and resource recovery from wastewater. Interdisciplinary efforts have been made to unveil EET processes at various spatial scales, from nanowires to microbial aggregates. Electrical conductivity has been frequently measured as an indicator of EET efficiency.

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Although fresh-cut button mushrooms are popular with consumers, quality deterioration presents a significant shelf-life challenge. In this study, fresh-cut button mushrooms were treated with 0.25 g/L lcysteine (lCys) and evaluated in terms of quality, physiology, and transcriptome sequencing.

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