Improved oxygen mass transfer modeling for diffused or subsurface aeration systems

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5146039

McWhirter, J R; Hutter, J C ^[1]

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1. Pennsylvania State Univ., University Park, PA (USA). Dept. of Chemical Engineering

The mass transfer analysis of the oxygen transfer performance of diffused air or subsurface mechanical aeration systems has progressed very little over the past twenty years. The ASCE Standard Method for determination of the oxygen mass transfer performance as applied to a diffused or subsurface aeration systems is based on a greatly over-simplified mass transfer model. Although the ASCE Standard can be used to empirically evaluate point performance conditions, it is not suitable for prediction of the performance of diffused aeration systems under changing operating or environmental conditions. A new oxygen mass transfer model has been developed which is a fundamentally more rigorous description of the actual mass transfer process in diffused aeration systems. This model can be confidently used to predict aerator performance under changing operation and environmental conditions and is easily adapted to numerical solution on a computer for routing aeration system performance evaluation as well as process design. The model is presented in this book.

• OSTI ID: 5146039
• Report Number(s): CONF-881143--
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
AERATION
COMPUTER CALCULATIONS
ELEMENTS
MASS TRANSFER
MATHEMATICAL MODELS
NONMETALS
NUMERICAL SOLUTION
OXYGEN
PERFORMANCE
STANDARDS
SUBSURFACE ENVIRONMENTS