A two-stage trickling filter system is proposed to treat wastewater from a small municipality with the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A two-stage trickling filter system is proposed to treat wastewater from a small municipality with the operational conditions provided in the Table below: Wastewater temperature Inflow Q Influent BOD5 Design effluent BOD5 Depth of each filter E1 = E₂ Recirculation for filters 1 and 2, R₁ = R₂ 23°C 3200 m³/d 225 mg/L 8 mg/L 2 m ? 1.8 (a) Determine the overall efficiency and efficiency per stage (E1, E2) at 23°C. (b) Determine the design efficiency per stage (E1(20 deg C), E2(20 deg C)) to be used in the NRC equation for sizing the reactors. (c) Using the NRC equation, determine the volume (V) and diameters for each stage. A two-stage trickling filter system is proposed to treat wastewater from a small municipality with the operational conditions provided in the Table below: Wastewater temperature Inflow Q Influent BOD5 Design effluent BOD5 Depth of each filter E1 = E₂ Recirculation for filters 1 and 2, R₁ = R₂ 23°C 3200 m³/d 225 mg/L 8 mg/L 2 m ? 1.8 (a) Determine the overall efficiency and efficiency per stage (E1, E2) at 23°C. (b) Determine the design efficiency per stage (E1(20 deg C), E2(20 deg C)) to be used in the NRC equation for sizing the reactors. (c) Using the NRC equation, determine the volume (V) and diameters for each stage.
Expert Answer:
Answer rating: 100% (QA)
a Overall efficiency and efficiency per stage The overall efficiency of the twostage trickling filte... View the full answer
Related Book For
Posted Date:
Students also viewed these chemical engineering questions
-
Problem 4 A heat integration project results in saving 5 MM Btu/h of heating utility and 14 MM Btu/h of cooling utility. The prices of heating and cooling utilities are $4/MM Btu and $7/MM Btu...
-
1. An 18m (L)X4.5m (W)X3m(D) aerated grit chamber is designed to treat an average flow of 0.35 m 3 /s and a peak flow of 1.15 m 3 /s. Calculate the Surface overflow rate at both conditions. What are...
-
Answer the following question based on the information presented for Cloud 9 in the appendix to this text and the current and earlier chapters. You should also consider your answers to the case study...
-
What is the legal significance of the difference between a mistake in judgment as to market conditions and a mistake of fact?
-
Why is it so difficult to measure output and economies of scale and scope in the financial-services industry? How could this measurement problem affect any conclusions reached about firm size,...
-
Comment on the phrase information system is an open system.
-
Kobe Inc. manufactures basketballs for the National Basketball Association (NBA). For the first 6 months of 2013, the company reported the following operating results while operating at 90% of plant...
-
How is the preparation of the statement of cash flow different from other financial statements as it relates to the source of information?
-
Determine the zero-force members in the Pratt roof truss. Explain your answers using appropriate joint free-body diagrams. A B 300 N C 400 N D L K J E F I H 12 m, 6 @ 2 m- 3 m
-
When a person is talking in a small room, the sound intensity level is 60dB everywhere within the room. When there are eight people talking in similar manner simultaneously in the same room, what is...
-
Amit Patel, as part of his compensation package, was offered an opportunity to purchase his companys stock at a later date at its current, lower price. Which of the following was Amit given? a. A...
-
Profit sharing could mean that in a good year, employees get bonuses, or it could refer to the companys contributions to an employee retirement plan. True or False
-
The following trial balance was extracted from the books of Old NV on 31 December 2021. (a) Provide for: (i) An audit fee of 38,000. (ii) Depreciation of plant at 20% straight-line. (iii)...
-
Which of the following is not a characteristic of a small business? a. They have less than 500 employees. b. On average, the annual revenue is no more than $7 million. c. It is independently owned...
-
Some companies use 360-degree appraisal of employees, gathering input from both their managers and their subordinates. True or False
-
Which global entry entails minimum investment in terms of money and people? O FDI/Wholly owned subsidiary Joint Venture Licensing/franchising Question 21 (2 points) 1) Listen "Repetition of the same...
-
One study found that the elderly who do not have children dissave at about the same rate as the elderly who do have children. What might this finding imply about the reason the elderly do not dissave...
-
The Dow Ceramic Company purchased a glass-molding machine in January 2005 for $ 180,000. The company has been depreciating the machine over an estimated useful life of 10 years, assuming no salvage...
-
Consider the following sequence of deposits and withdrawals over a period of four years. If you earn 10% interest on your deposits, how much will you able to withdraw at the end of four years? $1,210...
-
Washington Air Company is considering the purchase of a helicopter for connecting services between the company's base airport and the new inter-county airport being built about 30 miles away. It is...
-
Under IFRS, income statements are required to show: A. Extraordinary items. B. Unusual items. C. Exceptional items. D. None of the above.
-
Set out in Figure 16.10 are summarized balance sheets and income statements for F Co. for 20X1 and 20X2. You are required to: Figure 16.10 a. prepare a table of ratios, covering all aspects of...
-
Earnings is calculated deducting: A. Dividends on ordinary shares. B. Dividends on preference shares. C. Tax expense. D. Interest expense.
Study smarter with the SolutionInn App