You are asked to complete an investigation into the efficiency of removal of your toilet. The bowl hold 5 liters of water. When you flush almost all flows out, but some does remain. You inject dye into the bowl at a concentration of 1g/L. The dye that remains (with the water) then dilutes evenly into the water that fills up the bowl after the flush. The concentration after five flushes is 0.313 ug/L (micrograms per liter). How much water (volume) remains in the toilet after each flush?

You are asked to complete an investigation into the efficiency of removal of your toilet. The bowl hold 5 liters of water. When you flush almost all flows out, but some does remain. You inject dye into the bowl at a concentration of 1g/L. The dye that remains (with the water) then dilutes evenly into the water that fills up the bowl after the flush. The concentration after five flushes is 0.313 ug/L (micrograms per liter). How much water (volume) remains in the toilet after each flush?

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter13: Energy And Power

Section: Chapter Questions

Problem 22P

See similar textbooks

Similar questions

Particle emissions in a house. The power goes out in your apartment (volume = 150 m3) at night, so you decide to light a few candles. These candles have a combined particle emission rate of E = 2.0 mg/h. Your apartment has a ventilation flow of 1.5 m3/min and the particles have a first order loss rate (due to deposition, which acts similar to a reaction) of 0.25 h−1, so: Write the differential equation and define the source and loss terms. Calculate the values for the source and loss terms and rewrite the differential equation with these values. What is the steady state particle concentration in your house (in μg/m3)? Write the time-varying solution to this problem and calculate the particle concentration after 1 hour of candle-burning (in μg/m3). If after 1 h of lighting the candles the power returns and the candles are all immediately put out, what will be the particle concentration 3 h after first lighting the candles?
Determine the rate constant of a pesticide which has a half life of 9 days. Also determine the time taken to remove 95% of pesticide.
In an insecticide-manufacturing unit, the gases coming out of a micro-fine grinding unit, containing 600 µg of sulfur / m3 of gas, are sent to a bag filter. If the flow rate of the gases through the bag filter is 1000 m3 / minute, how much sulfur will be separated in the bag filter in kg/day? Assume that all sulfur particles are separated in the bag filter.
1.Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains VLitersof a dye solution with a concentration of 1 g/L. To prepare for the next experiment, the tank is to be rinsed with fresh water flowing in at a rate of 2 L/min, the well-stirred solution flowing out at the same rate. Find the time that will elapse before the concentration of dye in the tank reaches 1% of its original value. Use V = 140 V=140x10=1400 liters
A water treatment plant with an average flow of Q = 0.8 m3/s treats its water with alum at a dose of 27 mg/L. Alum (Al2(SO4)3. 14.3 H2O) coagulation is used to remove particulate matter, reduce the concentration of organic matter, and reduce the alkalinity of the water. Determine the total mass of aluminum hydroxide (Al(OH)3) consumed per day (kg/d, no decimal point) (atomic mass: Al: 27, S: 32, H: 1, O: 16).
When drinking water is disinfected with chlorine an undesired byproduct, chloroform, is formed. Suppose a 70-kg person drinks 2 L of water every day for 70 years with a chloroform concentration of 0.1 mg/L What is the average life-time daily dose? 0.17 ug/kg•day 2.9 ug/kg•day 0.1 mg/L 0.2 mg/L•day
Solve the following application problems. The thermometer reading 70° F is placed in an oven preheated to a constant temperature. After ½ minute, the thermometer reads 110° F and it reads 145°F after 1 minute. What is the temperature in the oven?
A tank contains 49 gallons of a solution composed of 85% water and 15% alcohol. A second solution containing half water and half alcohol is added to the tank at the rate of 4 gallons per minutes. At the same time, the tank is being drained at the same rate. Assuming that the solution is stirred constantly, how much alcohol will be in tank after 10minutes?
You have been tasked with designing a chlorination tank for killing microorganisms in the effluent from a wastewater treatment plant. It is necessary to achieve 99.99% kill in a wastewater flow of 100 m3/hr. You may assume that the disinfection process is first-order with a rate constant of 0.2/min. Note: a 99.99% kill percentage means that if 10,000 cells/L enter, only 1 cell/L will “live” through the process. a) Calculate the tank volume required (in m3) if disinfection occurs in a CSTR. b) Calculate the tank volume required (in m3) if disinfection occurs in a PFR. c) Identify the residence time (in hours) for each reactor and explain why one system is superior to the other.
Hello, I have an equalization tank with the following dimensions: Tank Dimensions: Height: 5.15 meters Length: 10.3 meters Width: 30.48 meters Total volume calculated: 1616.8116 m³ The design flow is 2.5 MGD. I want to treat the pH and alkalinity with soda ash. pH: 4.9 (desired: 7) Alkalinity [mg/L]: 44 mg/L (desired: 200 mg/L) How can I calculate how much soda ash I need to treat the pH and alkalinity in the equalization tank?
Assume an adult male who weighs 50 kg drinks 2L of water every day and the absorption factor the chemical of concern is 75 percent (so 25 percent of the chemical secreted). The concentration of the chemical in the drinking water is 55 ppb? Determine the does in mg/kg-day.
In the same venturi meter described below used to measure the discharge for a length of pipeline that was suspected to have had water stolen through an illegal connection before said suspected illegal connection a mercury difference of 350 mm was observed while a mercury difference of 200 mm was observed afterwards. estimate the stolen volume of water per day