ENGINEERING FUNDAMENTALS
6th Edition
ISBN: 9781337705011
Author: MOAVENI
Publisher: CENGAGE L
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Chapter 8, Problem 53P
To determine
Calculate the total amount of water consumed during 2010 by all the people in the U.S and the amount of water saved if the per capita consumption was reduced.
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A typical household of four people consume approximately 300 liters of water per day. Express the annual consumption rate of a city with a population of 100,000 people. Express your answer in liters per year and m3 per year.
A water supply company delivered an annual quantity of 5,000,000 m³, assuming
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delivery was as follows:
Hour 1
2
3
4
5
6
7
8
9 10 11
12
989 945
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727 | 844 | 1164 | 1571 | 1600 | 1775 | 1964 | 2066 | 2110
Hour 13 14 15 16 17 18 19 20 21 22 23 24
1660 1309 1091 945 1062 1455 1745 2139 2110 2037 1746 1018
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Determine the Chlorine dosage and Chlorine demand for a water treatment plant which uses 50.5 Kg/day of Chlorine to treat 42,500 m3/day of water. Residualchlorine after 30 minutes contact time is 0.56 mg/L?
Chapter 8 Solutions
ENGINEERING FUNDAMENTALS
Ch. 8.2 - Prob. 1BYGCh. 8.2 - Prob. 2BYGCh. 8.2 - Prob. 3BYGCh. 8.2 - Prob. 4BYGCh. 8.2 - Prob. BYGVCh. 8.4 - Prob. 1BYGCh. 8.4 - Prob. 2BYGCh. 8.4 - Prob. 3BYGCh. 8.4 - Prob. BYGVCh. 8.5 - Prob. 1BYG
Ch. 8.5 - Prob. 2BYGCh. 8.5 - Prob. 3BYGCh. 8.5 - Prob. 4BYGCh. 8.5 - Prob. BYGVCh. 8 - Prob. 1PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 9PCh. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - Prob. 19PCh. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - Prob. 32PCh. 8 - Prob. 33PCh. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - Prob. 36PCh. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - Prob. 39PCh. 8 - Prob. 40PCh. 8 - Prob. 41PCh. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - Prob. 46PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - Prob. 56PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - Prob. 59P
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- Chlorine is the most widely used disinfectant for killing pathogens during water treatment. Determine the kilograms of chlorine used daily at a water treatment plant handling 10,000 cubic meters per day of flow at a chlorine dosage of 10 mg/L.arrow_forwardAn issue of a magazine contained the following statement. Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. One day's discharge at its mouth, 3 trillion gallons, could supply all of country A's households for five months. Based on this statement, determine how much water an average household uses each month. Assume that there are 100 million households in country A.arrow_forwardA typical household of four people consumes approximately 300 liters of water per day. Express the annual consumption rate of a city with a population of 100,000 people in kg/year.arrow_forward
- A typical household of four people consume approximately 80 gallons (US) of water per day. Express the annual consumption rate of a city with a population of 100,000 people. Express your answer in gallons per year = [ Select] ft per year [ Select] liters per year- ( Select ] vand m2 per year= I Select]arrow_forwardCalculation of Energy saving We are given that Average energy use for waste water treatment = 652 KWh for 625,853 gallons Average energy use for 1 gallon waste water treatment = 652625,853 KWh Per day Average energy use for 29.522 Million gallon waste water treatment = 652625,853*29.522*106 Per day Average energy use for 29.522 Million gallon waste water treatment = 30753.29 KWh " Per day Energy saving = 30753.29 KWh " Finding How to come up with 30753.29KWh? If 652 KWh for 625,853 gallons 652,853*29.522*106 = ??arrow_forwardA wastewater treatment operator uses the formula A=8.34FC to determine the amount A of chlorine in pounds to add to a basin. The flow F through the basin is in millions of gallons per day, and the desired concentration C of chlorine is in parts per million. If 1600 pounds of chlorine was added to a basin with a flow rate of 7.5 million gallons per day, what would be the resulting concentration?arrow_forward
- QUESTION 7 Calculate the flowrate of water passing through a pump in which the power is 22.1 kW, the change in head is 81.7 m and the efficiency is 79%. Please give your answer in l/s to 3 significant figures.arrow_forwardWater Budget Problem: Residential Water Usage You are tasked with calculating a water budget for a residential household over the course of a month. The household consists of two adults, two children, and a small garden. The water usage will include indoor activities such as bathing, cooking, and cleaning, as well as outdoor activities like watering the garden. Given Information: • Average water consumption per person per day for indoor activities: 100 liters • Average water consumption for outdoor garden watering per day: 50 liters • Water meter reading at the beginning of the month: 150,000 liters • Water meter reading at the end of the month: 151,500 liters Assumptions: • The month has 30 days. • There is no leakage or wastage of water. • Water used for other purposes (e.g., car washing, swimming pool) is negligible and can be ignored. Question: What is the total water usage over one month? O 11500 litters O 15000 liters O 14250 litters O 13500 litersarrow_forwardA family of four resides in a suburban home equipped with a garden, a washing machine, and a dishwasher. The water consumption pattern of the household for a month is as follows: • Daily indoor water use (showers, toilets, sinks): 350 liters • Weekly laundry: 150 liters • Weekly dishwasher usage: 100 liters • Garden irrigation: 500 liters per week Calculate the total monthly water consumption for the household and assess whether their water usage is sustainable based on the region's average monthly water availability of 12,000 liters. O The household's total monthly water consumption is 10,800 liters, which is below the region's average monthly water availability of 12,000 liters. O The household's total monthly water consumption is 14,800 liters, which exceeds the region's average monthly water availability of 12,000 liters. O The household's total monthly water consumption is 12,800 liters, which exceeds the region's average monthly water availability of 12,000 liters. O The…arrow_forward
- Check my answer, please. To calculate the savings, we need to first determine reduction in waste- water generation for given 7 million population of Hongkong, only 1 million people in HK using low flush toilet and low shower head/ 1 million leaky toilet and faucet. Assume all use shower. Conventional Water fixtures End-Use Conventional fixtures Usage pattern Population Daily Usage Toilets 3.5 gal/flush 4 flushes/per/day 6 million 3.5*4*6 = 84 million gallons Showers 5 gal/min 5 min/shower 6 million 5*5*6 = 150 million gallons Faucets 4 gal/min 2.5 min/per/day 6 million 4*2.5*6 = 60 million gallons Leaks 10% of total use - - 0.1*(84+150+60) = 29.4 million gallons Total 323.4 million gallons Water efficient fixtures End-Use Water efficient fixtures Usage pattern Population Daily Usage Toilets 1.6 gal/flush 4 flushes/per/day 1 million 1.6*4*1 = 6.4 million gallons Showers 2.5…arrow_forwardInvestigate the average daily water consumption per capita in the United States. Discuss the personal and public needs in a brief report. Also discuss factors such as geographical location, time of the year, time of the day, and cost of consumption patterns. For example, more water is consumed during the early morning hours. Civil engineers need to consider all of these factors when designing water systems for cities. Assuming that the life expectancy of people has increased by five years over the past decades, how much additional water is needed to sustain the lives of 50 million people?arrow_forwardQ2: A- Find the population of a city in 20 years from the year 2010 using geometric method, also find the capacity of water treatment plant required to achieve the consumption at that year if the average daily consumption is assumed to be 400 lpcd. year 1960 1970 1980 1990 2000 2010 population 58545 87817 131750 197625 296440 444660 B- By drawing illustrate a typical daily variation in water demand.arrow_forward
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