Kinetics of the desorption of ammonia from water by diffused aeration

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Sep. Sci. Technol.; (United States)

DOI:https://doi.org/10.1080/01496398408059939· OSTI ID:6357226

Patoczka, J; Wilson, D J

Ammonia desorption by diffused aeration was investigated in a lab-scale, batch aeration column, and the theoretical basis for the operation was developed. A formula was derived for the calculation of the fraction of ammonia present in the solution in undissociated form (susceptible for desorption) for any given temperature and pH. The experimental work shows that desorption is equilibrium controlled, which is at variance with some of the results reported in the literature. Lower limits of the ammonia mass transfer coefficient for bubbles rising through the water column were estimated. The impact of the surface effect on the rate of desorption was taken into account in the calculations. 22 references, 6 figures, 2 tables.

• Research Organization: Vanderbilt Univ., Nashville, TN
• OSTI ID: 6357226
• Journal Information: Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 19:1; ISSN SSTED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AERATION
AMMONIA
BENCH-SCALE EXPERIMENTS
BUBBLES
DATA
DESORPTION
EQUILIBRIUM
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
KINETICS
LIQUID WASTES
MASS TRANSFER
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
OXYGEN COMPOUNDS
PH VALUE
REACTION KINETICS
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
WASTE WATER
WASTES
WATER