What is the scale of the model in terms of the prototype

Reference no: EM13550439

1.A standard five-day BOD test is run using a mix consisting of four parts distilled water and one part wastewater (no seed) the initial DO of the mix is 9.0 mg/l , and the do after Five days, determined to be 1.0mg/l. what is BOD5?

2.Assume that water recharging an aquifer in 1964 had a tritium concentration of 1200 TU at that time. If this water is not mixed with other waters, predict its tritium concentration in 1970, 1980, 1990, 2000, and 2100.

3.A maximum flow rate of 6 CFS is available for a river model. This corresponds to 30,000 CFS for the prototype. What is the scale of the model in terms of the prototype size?

Reference no: EM13550439

Questions Cloud

Calculate the couple c a that must be supplied by the : The table lamp consists of two uniform arms, each weighing 0.8 lb, and a 2-lb bulb fixture. If ? = 16? , calculate the couple C A that must be supplied by the friction in joint A.

Determine which of the following statements is true : The velocity and pressure are given at two points in the flow field. Assume that the two points lie in a horizontal plane and that the fluid density is uniform in the flow field and is equal to 1000 kg/m^3. assume steady flow. Then, given these data,..

What are the spcs83 coordinates and convergence angle : What are the SPCS83 coordinates and convergence angle for a station in the Colorado Central zone with geodetic coordinates of 39° 44’ 40.74141”N, 105° 00’ 07.48466”W

What is the maximum volume of treated wastewater : Roughly what is the maximum Volume of treated wastewater should you put in the bottle if you want to have at least 2.0mg/l of DO at the test (filling the rest of the bottle with the water

What is the scale of the model in terms of the prototype : A maximum flow rate of 6 CFS is available for a river model. This corresponds to 30,000 CFS for the prototype. What is the scale of the model in terms of the prototype size?

The basin dimensions if increments of 1.0 inch are used : A rapid-mixing basin is to be designed for a water coagulation plant, and the design flow for the basin is 4.0 MGD (million gallons per day). The basin is to be square with a depth equal to 1.25 times the width.

Determine by trigonometry the magnitude and direction : Two parallel disks of diameter D are brought together, each with a normal speed of V. when their spacing is h, what is the radial component of convective acceleration at the section just inside the edge of the disk (section A) in terms of D, V, and h..

You are paying into a mututal fund that earns compound : You are paying into a mututal fund that earns 6% compound interest. If you are making an annual contribution of $10000, how much will be in the funds in 20 years? What if the fund makes 10%? What if it loses 5% per year?

Determine the required cstr volume v (gallons) : Determine the required CSTR volume, V (gallons), and hydraulic residence time, t = V/Q (hours), to comply with the current industrial pre-treatment permit limitation for phenol.

User Account

All Pages