A sedimentation basin is to be designed with the following characteristics: • Average flow rate = 1.5 MGD • Detention time = 4 hrs • Overflow rate = 700 gpd/ft² - a. If a circular design is used, what are the approximate diameter and depth? - b. If the flow rate is reduced to 0.7 MGD, what are the overflow rate in gpd/ft² and the detention time? - c. According to the design guidelines, the weir loading cannot be greater than 24,000 gpd/ft. Explain how you would install weirs to meet this requirement.

An unlined canal is designed for a discharge of 12 m³/s. If the silt factor is 1 and the width of canal is 10 m, then the scour depth as per Lacey's formula is m. A B 1.51 C 1.50 D 1.52 1.53 X

Design an irrigation channel in alluvial soil according to Lacey's silt theory with the following data, discharge is 50 m³/sec. Lacey's silt factor = 1, side slope 1/2H : 1V

Assume any data if required

A rectangular sedimentation basin to treat a flow of 12000 m3 /day designed for 4hrs, and with L:B of 4:1 Find the weir loading rate a) 1200 m3 /day

A sedimentation basin treats water at a flow rate of 18,900 m³/d. The overflow rate is 30 m³/d-m? (30 m/d), and the detention time is 4-hour. Determine the basin volume (size), basin area (As), basin dimensions, and weir length for: (a) a horizontal sedimentation basin with length:width ratio of 4:1 and WL of 250 m³/d-m (b) an upflow clarifier (basin) with WL of 170 m³/d-m

A circular sedimentation tank with central chamber of 4 m in diameter is designed to treat 75 m/hr. raw water and the detention time is 2 hrs. Find: 1) Radius and depth of the tank 2) Weir loading in m/m.d. pi g/cc, and u 1.3 c.p. 3) Diameter of the smallest settling particle is to be removed, if v=1.2 m/hr, p2 g/cc,

Question What is the hydraulic radius of a stable canal carrying a discharge of 27 m³/s using Lacey's method ? (Assume silt factor is 1.0)

5. Answer the following :a. Draw pressure diagnostic plots for 5 types of reservoir conditionscommonly encountered.b. Explain decline curves.

Q2/The following are available reservoir data: Pay zone thickness (50) ft., the original permeability of the Indiana zone (128) md and radius of drainage area equal to (720) ft., average reservoir pressure (2750) psi and the pressure drop equal to (1000) psi, oil formation volume factor (1.3) BBL/STB, as a result of stimulation operation formation permeability improved to (145) md with affected radius (0.4) ft, well bore radius (0.375) ft, and 50% of the formation perforated at the center by bullet guns with 2 shots/ft, bullet penetrate with one side penetration, and oil viscosity (0.5) cp. Determine all of the following: 1. Ideal flow rate. 2. Actual flow rate. 3. Pressure drop due to skin and flow efficiency.