HW1 // A stepped rectangular weir has the upper step 1m wide and 0.3m deep and the lower step 0.6m wide and 0.5m deep. Calculate the discharge when the water level just touches the top edge of the weir. cd= 0.6 HW2 // What is the equation for the compound weir below? HW3 // Water flows at a rate of 5 m3/sec in a rectangular channel of width 10m. the normal depth of flow in channel is Sm. if a sharp-crest weir of height 5m is installed across the channel, determine the new flow depth in the channel for the same flowrate? cd = 0.6 HW4 // A rectangular weir with 1.6 m width. How high should it be placed in a channel to maintain an upstream depth of 2.35 m for 0.4 m3/sec flow? 0.65 cd = (1+4

Find the discharge over a 75 degree V-notch weir if H = 6 inches

A contracted from the two ends sharp-crested weir is installed in a channel and has a crest heigh of 7.2 m and a crest effective length of 4 m. The discharge coefficient (Cd) is 1.81. At design flow, a 1.1 m static head develops upstream of the weir. Determine the crest height of a non- contracted-90°-V-notch (replacement) weir with Cd =2 that would discharge the same design flow rate without raising the upstream flow depth in the channel. Y

A circular settling basin is anticipated to receive a flow of 3.5 MGD.  The tank is to be designed to have an overflow rate of 800 gpd/ft2. The depth is to be 11 ft. Determine the diameter of the basin (in feet). ? What length of weir (ft) is required to achieve a weir loading of 15,000 gpd/ft show all work

Q2: Two primary rectangular clarifiers are 2.3 m in depth. Single effluent weirs are located on the peripheries of the tanks. For a wastewater flow of 2500 m/hr and overflow rate 1.5 m/hr, calculate: 1. Dimensions of the tanks (m). 2. Weir loading (m/m/d). Is the weir loading within the design criteria. Assume : length (L): width (W) = 3:1