You’re working on a preliminary design for a water treatment plant expansion for Fell City.  The required capacity is 12 MGD (million gallons per day).  The TSS of the sedimentation basin effluent is 16 mg/L of TSS.  Assume the effluent TSS is 0 mg/L. (a)  Based on a filtration rate of 2 gpm/ft2, how big (area) must the filters be? (b)  If 3% of the treated water is used for backwashing, what would the backwash TSS be?  (Set up a mass balance analysis.) (c)  How many tons of sludge (dry solids) would be generated in 30 days?

Q: 23. An activated sludge treatment plant treats 10,000 m³/day of sewage. The influent BOD is 175 mg/L…

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Q: Discuss the relationship between removal efficiency and the cost of water treatment for the four…

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Q: An activated sludge system operates at a flow rate of 400 m'/day with an incoming BOD of 300 mg/L.…

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Q: Determine the Aeration Basin Dimensions for a town of 30,000 population. Mixed Liquor  Suspended…

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Q: oluble BOD5 = 80 mg/L Assume that the BOD5 of the suspended solids may be estimated as equal to 50%…

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Q: 01: Find the area of rapid sand filters and find the dimensions (if fivé units are used), for the…

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Q: QUESTION: A city of 5000 persons is to be served by a low rate trickling filter with a synthetic…

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Q: Question: A wastewater with a BOD5 of 326 mg/L and a Total Suspended Solids (TSS) of 392 mg/ is sent…

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Q: with Average daily demand of 150 liters/(capita-day). Rate of filtration is 150 liters/ (m2

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Q: •Given the following information for wastewater plant, the plant is an activated sludge system with…

A: Answer Flow rate Q = 60000 m3/d Volume of Aeration tank = 7500 m3  Efficiency of aeration tank = 85%…

Q: X 1. One million gallons per day of municipal wastewater with a BOD5 of 260 mg/L and suspended…

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Q: Determine the solids retention time (SRT) using the data below. Use th retention time equation that…

A: Answer Solids retention time is Mean cell residence time of the solids that are maintained in the…

Q: design 4 filter with 2 troughs of a square cross-sectional area to treat 2000 m³/hr using average…

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Q: Problem: 1. Design a facultative pond to treat (10650)gpm of sewage having (10650/20)mg/L of BOD.…

A: Note:- Hi! Thank you for the question As per the honor code, We’ll answer the first question since…

Q: Given: Rate of infiltration, in/hr 3.1 Final capacity, in/hr 0.3 Horton k, hr1 0.4 Solve for the…

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Q: Design a low rate trickling filter to treat 6.0 MLD of sewage of BOD of 210 mg/l. The final effluent…

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Q: AWWTP effluent of 0.011 m^3 /s and a BOD5 of 590 mg/L discharges into a river. The river has flow of…

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Q: AWWTP effluent of 0.011 m^3 /s and a BOD5 of 590 mg/L discharges into a river. The river has flow of…

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Q: Determine the diameter of a trickling filter for a wastewater flowing at the rate of (13500/100)…

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Q: Problem 2.Assume that DLSUD lake is 100m² and its average height is 5ft. Wastewater that flows into…

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Q: A municipal wastewater treatment plant processes an average of 14,000 m3 / day. The peak flow is…

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Q: An aerated lagoon wastewater treatment is to be designed for a municipal wastewater. The design…

A: It is required to determine the applied BOD to the lagoon. Si=Influent BOD51-Primary clarifier…

Q: (c) At the location 15 km downstream of the effluent discharge, how much oxygen (k8/d) would have to…

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Q: Note: Answer Only Date: Subject: Sewerage and Environmental Engineering Q.1. Find the F/M ratio and…

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Q: The Lo value just downstream from a sewage outfall is 60 mg/L. The DO saturation level at that point…

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Q: QUESTION: A city of 5000 persons is to be served by a low rate trickling filter with a synthetic…

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Q: 28. An EA STP treats sewage with a BOD of 250 mg/L, from a residential park with a population…

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Q: Southside Water Treatment Plant in Tyler, TX Evaluate the primary and secondary sedimentation tanks…

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Q: Design a low rate trickling filter to treat 6 MLD of sewage of BOD of 210 mg/l and organic loading…

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Q: 10. A 15,000 ft" conventional activated sludge system has a recycle ratio of 0.38, an influent flow…

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Q: Determine the Aeration Basin Dimensions for a town of 200,000 population. Mixed Liquor Suspended…

A: Following is the given information: Population = 200,000. Mixed Liquor Suspended Solids  =  3500…

Q: Determine the 5-day BOD for a wastewater sample when 15 ml of wastewater is diluted up to the mark…

A: Given data : Initial Dissolved oxygen (DOi)=15 mg/LFinal Dissolved oxygen (DOf)=5 mg/LSample volume…

Q: A city of 5000 persons is to be served by a low rate trickling filter with a synthetic packing (K =…

A: BOD after ;primary sedimentation=S0=140 mg/L BOD after final sedimentation=St=20 mg/L Now…

Q: Calculate 1-day BOD and ultimate BOD for a wastewater whose 5- day 20 °C BOD is 737. The reaction…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: A waste water effluent of 560 lls with a BOD = 50 mgll, DO = 3.0 %3D mg/l and temperature of 23°C…

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Q: e initial rate of infiltration of a watershed is estimated as /hr, the final capacity is 0.2 in/hr,…

A: K=-0.4 per hr Time period=6hr

Q: The influent suspended solids concentration to a primary settling (clarifier) tank is 300 mg/L. The…

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Q: .Calculate the number and size of slow Sand Filter units to serve a population of 15,000 persons…

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Q: 6. After your flash mix the water was sent to a clarification basin that was 24 feet in diameter and…

A: To find:-detention tiefiltration ratefiltration rate after breakthrough failure

Q: B- A single stage filter is to treat a flow of city having a population of 50000 person, determine…

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Q: If a manufacturing facility generates raw wastewater that is predominantly composed of dissolved and…

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Q: Determine the Aeration Basin Dimensions for a town of 200,000 population. Mixed Liquor Suspended…

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Q: Assume that taal lake is 100m2 and its average height is 5ft. Wastewater that flows into the lake…

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Q: 4. An activated sludge plug flow reactor (PFR) is designed to treat domestic wastewater for organic…

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Q: Determine the diameter of a single-stage rock media filter to reduce an applied BOD, of 125 mg/L to…

A: depth =1.83m R=12 Q=0.14 m3/sec

Q: Design leach single pit for a pour-flush latrine for the data given below: Family members = 7…

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.