An environmental engineer is evaluating an option to construct a secondary containment structure around a hydrocarbon processing unit. The first level of containment cost a total of $9 million, and the second levee is expected to have the same cost. The first level of containment is expected to have a reliability of 0.94, and the second level will function as an independent parallel component in the hydrocarbon spill prevention system. If the damages avoided by preventing a hydrocarbon spill are $150 million, what is the benefit-cost ratio of constructing a redundant containment structure?

Q: A sewage sludge is to be transported a distance of 3 mi through a 12in ID pipeline at a rate of 2000…

A: Given data : Distance = 3 miles Internal diameter= 12 inch Rate = 2000 GPM Yield stress= 35 dyne/cm2…

Q: A study of the total suspended solids TSS discharging into surrounding waters for a small city…

A:

Q: A 15,000 gallon tanker truck containing three separate compartments crashed and spilled in the side…

A: The flow of fluid includes movement of an unbalanced fluid. As long as unequalled forces are in…

Q: The city of Ten Sleep proposes to use Crater Lake for its water supply. The plan is to treat 3,500 m…

A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 4. If the ultimate BOD for wastewater has been estimated as (200+X) mg/l, calculate be the 5 days…

A:

Q: An oil reservoir has the following data: Reservoir thickness (h): Reservoir permeability (K):…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Assuming a homeowner installs a 60-gallon rain barrel at their home which has a roof with 215 ft2 of…

A: Given above data we have to find rainfall in mm

Q: Tailings dam failures have been predominant in mining operations. Outline five (5) causes of…

A: Nowadays mining industry has prominent impact modern life and its products are widely used in…

Q: A groundwater supply has been designated as vulnerable to fecal contamination, and the state has…

A: given disinfection level = 99.99 % ( 4 log) virus pumping rate = 2000 gpm length of pipe = 4200 ft…

Q: Quite often diversification is the key to success of almost anything we do, and wastewater treatment…

A: The objective of the question is to propose a wastewater treatment scheme that can treat the given…

Q: The city of Ten Sleep proposes to use Crater Lake for its water supply. The plan is to treat 3,500 m…

A: Solution: Given Data: The plan is to treat 3,500 m 3 /d by direct filtration.

Q: A culvert is designed for a flood frequency of 100 years and a useful life of 20 years. The risk…

A:

Q: 8.67 A 1/25 scale model of a spillway is tested. The discharge in the model is 0.1 m³/s. To what…

A:

Q: The three statements below all refer to standard single-barrel reverse flow cyclones used to remove…

A: Solution True and False are in second step

Q: Sewerage waste was discharged into Mulungushi River from Iris lodge which is located along the banks…

A: A mixture having DO of about 9mg/L DO dropped to 3mg/L k = 0.22 per day The oxygen consumed in the…

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.