Showing papers on "Wet oxidation published in 1970"
Patent•
15 May 1970TL;DR: In this paper, the authors improved the FILTERABILITY and other PROPERTIES of ACTIVATED SEWAGE SLUDGE by OXIDATION of the ACIDIFIED SLUDge for a period of about 2 hours while maintaining a temperature of about 120-170 C.
Abstract: IMPROVING THE FILTERABILITY AND OTHER PROPERTIES OF ACTIVATED SEWAGE SLUDGE BY OXIDATION OF THE ACIDIFIED SLUDGE FOR A PERIOD OF ABOUT 2 HOURS WHILE MAINTAINING AT A TEMPERATURE OF ABOUT 120-170*C.
41 citations
TL;DR: A mathematical model of the thermal decomposition process is identified by the variables COD and weight of solid matter, soluble non-evaporative matter and soluble evaporative matter in the sludge.
18 citations
Journal Article•
TL;DR: In this paper, a wet oxidation method of oxalic acid standard used in radiocarbon dating is described, and error due to possible carbon isotope fractionation during the oxidation is estimated.
Abstract: A wet oxidation method of oxalic acid standard used in radiocarbon dating is described, and error due to possible carbon isotope fractionation during the oxidation is estimated.
3 citations
TL;DR: In this article, it was demonstrated that low temperature radiofrequency ashing offers advantages in both precision of analysis and simplicity of sample handling, and it was further demonstrated that it is more accurate than flame photometry.
Abstract: Acrylic fibre samples can be prepared for sodium determination by low temperature radiofrequency ashing, by ignition in air and by wet oxidation with a mixture of sulphuric and nitric acids or sulphuric acid and hydrogen peroxide. The sodium is determined by flame photometry. A minimum of eleven determinations by each technique allows a statistical examination of the results. It is demonstrated that low temperature radiofrequency ashing offers advantages in both precision of analysis and simplicity of sample handling.
3 citations
TL;DR: In this article, the authors discuss the problems that arise when using the wet oxidation method for the preparation of CO2 from oxalic acid and suggest that although offering an effective substitute, the dry combustion method also has problems.
Abstract: Grey et al. (1969) have discussed the problems that arise when using the wet oxidation method for the preparation of CO2 from oxalic acid and suggest that, although offering an effective substitute, the dry combustion method also has problems.
2 citations
01 Jan 1970
TL;DR: Spacecraft wet oxidation for human waste processing, discussing temperature and gas pressure effects, catalyst types, pump requirements, etc. as discussed by the authors, discussed temperature, gas pressure, and catalyst type.
Abstract: Spacecraft wet oxidation for human waste processing, discussing temperature and gas pressure effects, catalyst types, pump requirements, etc
2 citations