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RISHarmonic Mean Conductivity in Declining Rate Filters
Publisher: American Society of Civil Engineers
Abstract: Harmonic mean conductivity equations for deep bed filters are developed. Differences between harmonic mean conductivity and hydraulic conductivity based on arithmetic average of specific deposit are explained.
Application of Declining Rate Filtration Theory—Continuous Operation
Publisher: American Society of Civil Engineers
Abstract: Equations describing the change of hydraulic conductivity with solids accumulation in deep‐bed filters are presented. Declining rate filtration (DRF) theory is extended to incorporate harmonic mean conductivity
Discussion of “<i>Theory of Declining Rate Filtration I: Continuous Operation</i>” by Fazal H. Chaudhry (August, 1987, Vol. 113, No. 4)
Publisher: American Society of Civil Engineers
Discussion of “<i>Graphs for Hydraulic Design of Sanitary Sewers</i>” by Venkateswarlu Swarna and Prasad M. Modak (May/June 1990, Vol. 116, No. 3)
Publisher: American Society of Civil Engineers
Discussion of “<i>Critique of Camp and Stein's RMS Velocity Gradient</i>” by Mark M. Clark (December, 1985, Vol. 111, No. 6)
Publisher: American Society of Civil Engineers
Bacterial Die‐Off in Waste Stabilization Ponds
Publisher: American Society of Civil Engineers
Abstract: A rate model has been given for the bacterial die‐off in waste stabilization ponds. Die‐off rate has been expressed as the sum of die‐off rate in the dark and the die‐off due to light. The proposed rate model has been ...
Effect of Pond Depth on Bacterial Die‐Off
Publisher: American Society of Civil Engineers
Abstract: The depth dependence of bacterial die‐off was demonstrated experimentally both in batch models and in three pilot‐scale waste stabilization ponds with water depths of 0.5 m, 1.0 m, and 1.5 m. The dimensions of the ponds ...