A waste treatment system is to be designed for raw wastewater containing 200 mg/L of carbonaceous...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A waste treatment system is to be designed for raw wastewater containing 200 mg/L of carbonaceous oxygen demanding material (BOD). The wastewater flow rate of 0.45 million gallons per day (mgd) is to be introduced into a reactor tank having a theoretical detention time of 1 day. The organic matter is oxidized at the rate of 1.0 day-1 (first-order rate constant). Note that 1 mgd = 1.55 ft3/sec. All tanks are 6 feet deep. Calculate the expected effluent concentrations for steady-state treatment in each of the following tank configurations all having the same total theoretical detention time: a. A fully-mixed circular tank, 113 feet in diameter, with inflow at center and outflow along the perimeter. b. A rectangular plug -flow tank, 200 feet long and 50 feet wide c. A rectangular plug -flow tank, 100 feet long and 100 feet wide d. Three equal size fully-mixed circular tanks in series with 1/3 the exact volume of the tank in (a) e. Which configuration would you recommend and why? A waste treatment system is to be designed for raw wastewater containing 200 mg/L of carbonaceous oxygen demanding material (BOD). The wastewater flow rate of 0.45 million gallons per day (mgd) is to be introduced into a reactor tank having a theoretical detention time of 1 day. The organic matter is oxidized at the rate of 1.0 day-1 (first-order rate constant). Note that 1 mgd = 1.55 ft3/sec. All tanks are 6 feet deep. Calculate the expected effluent concentrations for steady-state treatment in each of the following tank configurations all having the same total theoretical detention time: a. A fully-mixed circular tank, 113 feet in diameter, with inflow at center and outflow along the perimeter. b. A rectangular plug -flow tank, 200 feet long and 50 feet wide c. A rectangular plug -flow tank, 100 feet long and 100 feet wide d. Three equal size fully-mixed circular tanks in series with 1/3 the exact volume of the tank in (a) e. Which configuration would you recommend and why?
Expert Answer:
Answer rating: 100% (QA)
Lets go through the calculations for each option a Fullymixed circular tank 113 feet in diamet... View the full answer
Related Book For
Modern Advanced Accounting In Canada
ISBN: 9781259066481
7th Edition
Authors: Hilton Murray, Herauf Darrell
Posted Date:
Students also viewed these accounting questions
-
Study the information given below and answer the following questions: (25 Marks) 1.1 Calculate the Payback Period of both machines (answers expressed in years, months and days). (5 marks) 1.2 Which...
-
Miller Computers & Electronics sell a variety of gadgets including tablets. The business uses a perpetual inventory system and the FIFO method to account for inventory and began the third quarter...
-
Bromination of an alkene by N-bromosuccinimide (NBS) in thepresence of light or peroxide is a radical reaction and produces anallylic bromide. For the following bromination of3-methylcyclopentene,...
-
Bryce owns 200 shares of Basic Company stock that he purchased for $8,000 three years ago. On December 28, 2021, Bryce sold 100 shares of the stock for $2,500. On January 3, 2022, Bryce repurchased...
-
How can the companies involved in a buyer/seller partnership tell if the partnership is successful? What specific indicators can the companies use to measure progress and performance?
-
EmiLu Corporation is a private delivery company that hires independent contractors with their own trucks to deliver car parts to various auto repair shops in Pennsylvania. EmiLu contracts with the...
-
Discuss the different specialty areas that a person may work in as a tax professional.
-
(Deferred Tax Asset with and without Valuation Account) Callaway Corp. has a deferred tax asset account with a balance of $150,000 at the end of 2010 due to a single cumulative temporary difference...
-
Michael signs a contract with a music company to receive monthly CDs of popular albums. The cost of the CDs are $600.00 per year, payable in monthly installments of $50.00 each. Michael is 17 at the...
-
Garden Glory Project Questions Assume that Garden Glory designs a database with the following tables: OWNER (OwnerID, OwnerName, OwnerEmail, OwnerType) OWNED_PROPERTY (PropertyID, PropertyName,...
-
Suppose that a company currently trades for $35.25 per share and has 4,000,000 shares outstanding. The firm has 6 directors up for election this year. If the firm uses straight voting, how many...
-
An 80-percent-efficient pump with a power input of 36.00 hp is pumping water from a lake to a nearby pool at a rate of 1.5 ft /s through a constant-diameter pipe. The free surface of the pool is 80...
-
1. As mentioned in the case Starbuck limits the team size usually from three to six employees, why is the size of team an important factor? What are the benefits to Starbucks of having small teams of...
-
Problem 2 Determine the actual speed of the tap water flowing through the hole (diameter of 4 cm) in the bottom to free space. Reservoir in the shape of the vertical cylinder has a diameter of 0.6 m....
-
In your opinion, and based on what you have read in the Using Technology with Classroom Strategies that Work text during this course, what is key to transforming our learning environments into...
-
Q1: write program using visual basic to find the evaluation of the mark is 50-59 pass 60-69 medium 70-79 good 80-89 v-good 90-100 excellent
-
A volume of 500.0 mL. of 0.100 M NAOH is added to 525 mL of 0.250 M weak acid (K, = 4.44 x 10-5). What is the pH of the resulting buffer? HA(aq) + OH (aq) - H,O(1) + A-(aq) pH =
-
1. Below is depicted a graph G constructed by joining two opposite vertices of C12. Some authors call this a "theta graph" because it resembles the Greek letter 0. a. What is the total degree of this...
-
When the parent company uses the cost method, an adjustment must be made to its retained earnings on consolidation in every year after the year of acquisition. Why is this entry necessary? Why is a...
-
What part do irrevocable agreements, convertible securities, and warrants play in determining whether control exists? Explain.
-
There should never be a gain on an intercompany sale of equipment when the selling company uses the revaluation model under IAS 16 and the equipment is sold at fair value. Is this statement true or...
-
Show that the definition of the iterated It integral for \(f \in L^{2}\left(\mathbb{R}_{+}^{2} ight)\) (Definition 20.9) is independent of the approximating sequence. Data From 20.9 Definition 20.9...
-
Prove (20.20), i.e. show that \(\mathbb{E}\left[B_{T}^{2 n} e^{-B_{T}^{2}} ight]=\frac{(2 n-1) ! !}{\sqrt{2 T+1}}\left(\frac{T}{2 T+1} ight)^{n}\). Here, \((-1) ! !:=1\), \((2 n-1) ! !=1 \cdot 3...
-
Verify the claim made in Example 21.9 using Its formula. Derive from the proof of Lemma 21.8 explicitly the form of the transformation and the coefficients in Example 21.9. Integrate the condition...
Study smarter with the SolutionInn App