The kinetics of formaldehyde biodegradation by Pseudomonas fluorescens was studied under the conditions of batch cultivation. The process was shown to depend on the substrate, biomass and metabolites concentrations. Their combined action is satisfactorily described by the equation (formula; see text) where Vmax = 3.23 g/g/h, Ks = 2.52 g/l and Kx = 10.2 g/l. The equation is adequate as was demonstrated in experiments in which the organism was cultivated under the continuous conditions on the formaldehyde-containing sewage from the production of antibiotics.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Azithromycin removal from water via adsorption on drinking water sludge-derived materials: Kinetics and isotherms studies.
PLoS One
January 2025
Grupo de Investigación Materiales con Impacto (Mat&mpac) Universidad de Medellín, Medellín, Colombia.
In this study, we utilized drinking water treatment sludge (WTS) to produce adsorbents through the drying and calcination process. These adsorbents were then evaluated for their ability to remove azithromycin (AZT) from aqueous solutions. The L-500 adsorbent, derived from the calcination (at 500°C) of WTS generated under conditions of low turbidity in the drinking water treatment plant, presented an increase in the specific surface area from 70.
View Article and Find Full Text PDFSmall molecule probes for peroxynitrite detection.
Redox Biochem Chem
December 2024
Department of Biophysics, Medical College of Wisconsin, Milwaukee, United States.
Peroxynitrite (ONOO/ONOOH) is a short-lived but highly reactive species that is formed in the diffusion-controlled reaction between nitric oxide and the superoxide radical anion. It can oxidize certain biomolecules and has been considered as a key cellular oxidant formed under various pathophysiological conditions. It is crucial to selectively detect and quantify ONOO to determine its role in biological processes.
View Article and Find Full Text PDFUnderstanding the Role of Potential and Cation Effect on Electrocatalytic CO Reduction in All-Alkynyl-Protected Ag Nanoclusters.
J Am Chem Soc
January 2025
School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Chemical Theory and Mechanism, Chongqing University, Chongqing 401331, China.
Atomically precise metal nanoclusters (NCs) have emerged as an intriguing class of model catalysts for electrochemical CO reduction reactions (CORR). However, the interplay between the interface environment (e.g.
View Article and Find Full Text PDFCharacterisation at Cryogenic Temperatures of an Attenuator for an Application of Astrophysical Instrumentation with MKIDs.
Sensors (Basel)
December 2024
Laboratorio de Circuitos Integrados (LABIC), Departamento de Electrónica, Área de Instrumentación, Instituto de Astrofísica de Canarias (IAC), 38205 La Laguna, Tenerife, Spain.
The use of non-cryogenic certified commercial electronics for cryogenic applications may be attractive due to their cost and availability, but it also carries risks related to reliability, performance and thermal compatibility. The decision to use commercial components that are not certified for cryogenics instead of components specifically designed for such applications must be carefully weighed based on specific project needs and risk tolerances. This work presents the characterisation of an attenuator circuit at cryogenic temperatures used in a microwave kinetic inductance detector (MKID) readout system.
View Article and Find Full Text PDFDeciphering pH Mismatching at the Electrified Electrode-Electrolyte Interface towards Understanding Intrinsic Water Molecule Oxidation Kinetics.
Angew Chem Int Ed Engl
January 2025
Research Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
Unveiling the key influencing factors towards electrode/electrolyte interface control is a long-standing challenge for a better understanding of microscopic electrode kinetics, which is indispensable to building up guiding principles for designer electrocatalysts with desirable functionality. Herein, we exemplify the oxygen evolution reaction (OER) via water molecule oxidation with the iridium dioxide electrocatalyst and uncovered the significant mismatching effect of pH between local electrode surface and bulk electrolyte: the intrinsic OER activity under acidic or near-neutral condition was deciphered to be identical by adjusting this pH mismatching. This result indicates that the local pH effect at the electrified solid-liquid interface plays the main role in the "fake" OER performance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!