Showing papers by "Dongsheng Shen published in 2019"
TL;DR: In this article, microwave hydrothermal carbonization (MHTC) process parameters including holding temperature, holding time, and liquid-to-solid ratio were optimized by a response surface design to tailor the properties of hydrochar.
71 citations
TL;DR: Interestingly, as NaCl concentration increased, the residence time of lactic acid in the reactor increased, and the maximum production also increased, so the type of acidogenic fermentation also changed from butyric acid to propionic acid as the Na Cl concentration increased.
49 citations
TL;DR: In this article, a simulated landfill was established and operated for 507 days to explore the pattern of heavy metal immobilization by municipal solid waste (MSW) in the landfill process, and the results showed that 45.6 mg of Cu, 3.16 mg of Pb and 44.2 mg of Zn were immobilized by 25 kg of MSW during the whole landfill process.
38 citations
TL;DR: In this paper, a microwave hydrothermal liquefaction (MHTL) was introduced to transform watermelon peel to 5-hydroxymethylfurfural (HMF), a top value added chemical from biomass.
30 citations
TL;DR: Quorum sensing regulates production of ‘public goods’ by Pseudomonas aeruginosa, which releases toxic hydrogen cyanide to constrain QS-deficient cheaters, and it is shown thatQS-proficient strains protect themselves by producing a cyanide-insensitive enzyme in response to reactive oxygen species released by cheaters.
Abstract: Pseudomonas aeruginosa, an opportunistic pathogen of humans, uses quorum sensing (QS) to regulate the production of extracellular products that can benefit all members of the population. P. aeruginosa can police QS-deficient cheaters by producing hydrogen cyanide, which is also QS regulated; however, the mechanism by which cooperators selectively protect themselves from the toxicity of cyanide remained unresolved. Here, we show that a cyanide-insensitive terminal oxidase encoded by cioAB provides resistance to cyanide, but only in QS-proficient strains. QS-deficient cheaters do not activate cioAB transcription. QS-mediated regulation of cioAB expression depends on production of both cyanide by cooperators (which is QS regulated) and reactive oxygen species (ROS) from cheaters (which is not QS regulated). This type of regulatory system allows cooperating populations to respond, via ROS, to the presence of cheaters, and might allow them to defer the substantial metabolic cost of policing until cheaters are present in the population.
29 citations
TL;DR: Results showed that the solubilization and degradation of proteins can be inhibited by the presence of melanoids, and controlling the formation of melanoidins may help the application of HT and enhance the resource recovery from FW.
23 citations
TL;DR: The present high power output, chemical stability and hydrophilic carbon microwires make CM/TiM stable, scalable and environmentally sustainable anodes in bioelectrochemical systems.
11 citations
TL;DR: Considering the simple operation, significant cost-saving and easy scale-up of the proposed 'trash-to-treasure' method, it is promising to convert harmful sewage sludge into efficient non-platinum cathode catalysts in microbial fuel cells.
11 citations
TL;DR: In this research, the sulfate-reduction behavior at the micro-aerobic solid-liquid interface in a landfill was investigated and provides a theoretical basis for controlling the release of H2S within landfills.
10 citations
TL;DR: A mechanism for indirect electrical stimulation of microbial metabolism by electrochemically generating the active mediator p-fluoroaniline (p-FA) and further degradation by a sequential combination of electrochemical p-FNB reduction and biological p-FA oxidation by non-EMs is proposed.
7 citations