Results 261 to 270 of about 1,200,876 (308)

Thiocyanate Bio-oxidation Kinetics

Journal of the Environmental Engineering Division, 1981
Thiocyanates have been found in most coal conversion and coke plant effluents. Data were developed for the biological degradation rate kinetics of thiocyanate removal, and material balance information was developed for the fate of sulfur and nitrogen resulting from such bio-decomposition of aqueous thiocyanates.
Ronald D. Neufeld, L. Mattson, P. Lubon
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Kinetics of bio‐oxidation of metal sulphides

The Canadian Journal of Chemical Engineering, 1974
AbstractThe microbiological oxidation of cadmium, cobalt, nickel and zinc sulphides has been investigated using a pure strain of Thiobacillus ferrooxidans. Kinetic parameters (Vm and K) have been derived regarding the effect of initial total surface area of these substrates.
A. E. Torma, G. Legault, D. Kougioumoutzakis, R. Ouellet   +3 more
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Role of hydrolyzed rice husk in pyrite bio-oxidation

Geochemistry, 2021
Abstract This work seeks to understand the role of hydrolyzed rice husk in pyrite bio-oxidation. Solution parameters during the bio-oxidation process were monitored, and the bio-oxidation residues were characterized by Scanning Electron Microscopy, Raman Spectroscopy, and Fourier Transform Infrared Spectroscopy.
Hongying Yang, Jiafeng Li, Linlin Tong, Pengcheng Ma, Qin Zhang, Zhenan Jin   +5 more
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Bio‐oxidation of linoleic acid via methylmalonyl‐CoA

Lipids, 1969
AbstractUnsaturated long‐chain fatty acids are oxidized more rapidly than are saturated fatty acids of similar chain length in intact animals and isolated mitochondria. Gamma‐oxidation of the 3‐dodecenoic acid intermediate in beta‐oxidation of oleate would yield propionate which is metabolized via methylmalonate.14C‐labeled fatty acids were ...
J, Dupont, M M, Mathias
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Bio-oxidation of tripropylene glycol under aerobic conditions

Biodegradation, 2007
Aerobic biodegradation of tripropylene glycol (PG3) was investigated under the conditions of the OECD screening test 301E and the Continuous Flow Activated Sludge Simulation test (CFAS). A modified two-chamber facility with a denitrification stage was used for the CFAS test.
Agnieszka, Zgoła-Grześkowiak, Tomasz, Grześkowiak, Joanna, Zembrzuska, Magdalena, Frańska, Rafał, Frański, Zenon, Lukaszewski   +5 more
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Bio-oxidation of iron using Thiobacillus ferrooxidans

World Journal of Microbiology and Biotechnology, 1997
The effects of pH, ferrous and ferric ion concentrations on iron oxidation by Thiobacillus ferrooxidans were examined. The initial temperature and bacterial concentration were maintained at 37°C and 2±1×104cells/ml, respectively. The iron oxidation rate increased with increased initial ferrous iron concentration to 4g/l and thereafter decreased.
T. Das, V.V. Panchanadikar, G. Roy Chaudhury   +2 more
openaire   +1 more source

Tools for characterizing the whole‐cell bio‐oxidation of alkanes at microscale

Biotechnology and Bioengineering, 2012
AbstractThis article describes the first reported microwell whole‐cell bioconversion using a water immiscible substrate that matches the specific activity and yield achieved in a 1.2 L stirred tank bioreactor. Maximum yields of 0.6 g/Ltotal 1‐dodecanol achieved in 24 h compare favorably to 0.28 g/Ltotal 1‐dodecanol after 48 h obtained in a stirred tank
Chris, Grant, Ana Catarina da Silva Damas, Pinto, Hai-Po, Lui, John M, Woodley, Frank, Baganz   +4 more
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Aerobic Bio-oxidation with Ozonation for Recalcitrant Wastewater Treatment

Journal of Advanced Oxidation Technologies, 2008
AbstractThe aim of the present research was to find a combination of biological and chemical oxidation processes that improves the purification efficiency of recalcitrant wastewater treatment at reduced ozone consumption. The following wastewater treatment processes were experimentally studied: conventional aerobic biooxidation, post-ozonation of ...
Inna Kamenev, Andres Viiroja, Juha Kallas   +2 more
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Procedure for determination of elemental sulphur bio-oxidation rate

Bioprocess Engineering, 1989
A procedure is described for measuring the rate of biooxidation of elemental sulphur in nutrient solutions. Results of preliminary measurements of sulphur bio-oxidation rate in a dynamic system are presented. The rate of sulphur bio-oxidation has been determined at the level of 0.02–0.05 g of sulphur per m2 of sulphur per h.
A. Urbanek, S. Razmadhan, M. Jaworska
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Development of a large industrial bio-oxidation reactor in hydrometallurgy

International Journal of Mineral Processing, 2015
Abstract In this paper, the characteristics of the bio-oxidation process are investigated and the design principles of an efficient bio-oxidation reactor are proposed based on the large number of laboratory tests. Methods, such as increasing the height of tank to improve dissolved oxygen content and adding affiliate aeration system to reduce the ...
Zhengchang Shen, Ganguo Dong, Qiang Chen, Zhibin Han   +3 more
openaire   +1 more source