Liquid-vapor equilibrium in aqueous formaldehyde and phenol solutions
A method is proposed for the purification of air exhaust to eliminate phenol and formaldehyde by absorption using a water suspension of active sludge. A mathematical approach developed for ordinary absorption processes may be used to design bioscrubbers for this gas purification process. The liquid-gas equilibrium constants used in the calculations and encompassing the concentration range from 0.1 to 0.5 g/liter typical for the biochemical purification of waste water are available for the formaldehyde-water and phenol-water systems. The effect of the suspension of active sludge on the phase equilibrium of aqueous solutions of formaldehyde and phenol has not been described in the available literature. The authors studied the liquid-gas equilibrium for aqueous formaldehyde and phenol solutions applicable to the biochemical purification of air using a water suspension of active sludge. 9 refs., 1 tab.
- OSTI ID:
- 160261
- Journal Information:
- Russian Journal of Applied Chemistry, Journal Name: Russian Journal of Applied Chemistry Journal Issue: 12 Vol. 64; ISSN 1070-4272; ISSN RJACEO
- Country of Publication:
- United States
- Language:
- English
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