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Your search keyword '"Vince E. Pane"' showing total 2 results
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2 results on '"Vince E. Pane"'

1. Ultrafast and Controlled Ring-Opening Polymerization with Sterically Hindered Strong Bases

Author

Vince E. Pane, Charles Dausse, Nathaniel H. Park, Caleb N. Jadrich, Tim Erdmann, Robert M. Waymouth, Binhong Lin, Pedro L. Arrechea, and James L. Hedrick

Subjects
Inorganic Chemistry, Steric effects, Polymers and Plastics, Polymerization, Chemistry, Organic Chemistry, Polymer chemistry, technology, industry, and agriculture, Materials Chemistry, macromolecular substances, Ring-opening polymerization
Abstract

The controlled anionic ring-opening polymerization of lactones and siloxanes is carried out in continuous-flow reactors. Anionic ring-opening polymerization of cyclic esters with strong, soluble ba...

Published
2020

2. Metabolic model of nitrite reduction to nitrous oxide coupled to alternating consumption and storage of glycogen and polyhydroxyalkanoate

Author

Vince E. Pane, Zhiyue Wang, and Craig S. Criddle

Subjects
Environmental Engineering, Chromatography, Glycogen, Renewable Energy, Sustainability and the Environment, Chemistry, 020209 energy, chemistry.chemical_element, Bioengineering, 02 engineering and technology, Nitrous oxide, 010501 environmental sciences, equipment and supplies, 01 natural sciences, Nitrogen, Polyhydroxyalkanoates, chemistry.chemical_compound, Ammonia, 0202 electrical engineering, electronic engineering, information engineering, Bioreactor, Fermentation, Nitrite, Waste Management and Disposal, 0105 earth and related environmental sciences
Abstract

In the coupled aerobic−anoxic nitrous decomposition operation (CANDO), nitrogen removal occurs in two bioreactors: in the first, ammonia is oxidized to nitrite; in the second, nitrite is reduced to N2O for use as a biogas oxidant. We describe here a N2O-producing Defluviicoccus-dominated microbial community that alternately accumulates glycogen and polyhydroxyalkanoate (PHA). 13C-labelled acetate experiments confirmed the role of glycogen in PHA synthesis, and a metabolic model was developed to simulate this process. Batch experiments enabled estimation of model parameters. Key anaerobic reactions are uptake of acetate and fermentation of glycogen to poly(3-hydroxybutyrate-co-3-hydrovalerate). Key anoxic transformations are growth with PHA oxidation coupled to nitrite reduction to N2O, and conversion of PHA back to glycogen. With this simple model, we predicted and confirmed improved bioreactor performance at higher nitrogen loading rates. The model suggests strategies to either maximize N2O production or limit N2O emissions in systems designed for biological nutrient removal.

Published
2020

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