1. A 5-acre cell is being constructed with a leachate collection system sloped at 1% into a leachate collection sump. Th

[answerhappygod]

1 A 5 Acre Cell Is Being Constructed With A Leachate Collection System Sloped At 1 Into A Leachate Collection Sump Th 1 (57.51 KiB) Viewed 52 times

1. A 5-acre cell is being constructed with a leachate collection system sloped at 1% into a leachate collection sump. The design storm (25-year, 24-hour) intensity is estimated as 2 in/hr. a. Starting with the Rational Method (Q=CIA) (assume C for geomembrane is ~1), calculate the diameter of a HDPE (SDR17) pipe flowing half full to manage the flow using Manning's equation (n=0.012). b. Using an 8-inch HDPE SDR17 pipe, what is the maximum storm event (intensity in in/hr) that can occur if the pipe is to flow 75% full? 2. Is the Rational Method appropriate for calculating flow? What other factors need to be considered when sizing pipe for leachate collection? 2 ZOOM +