03: a- Two sedimentation tanks operate in parallel. The combined flow to the twe tanks is 0.1m'/s. The depth of each tank is 2 m and each has a detention time of 2 hr. What is the surface area of each tank, and what is the surface overflow rate of each tank in m'/(day.m')? b- The recent population of a city is 30000 capita, what is the predicted population after 30 years if the geometric growth rate is 3.5%? (&- n ) d-2m AT-2HV A

Q: (c) As an engineer, you have to design a sedimentation tank for Berjaya City residential area with a…

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Q: A stream carrying sediment with a representative diameter of 0.2 mm is carried in a channel with a…

A: Given DataDiameter=0.2 mmDepth=H=1.25 mLength=40 mVF=0.5 m/sNOw…

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Q: A stream with a flow of 1.7 m°/s and BOD 3.4 mg/l is saturated with DO (9.27 mg/l at 20°C). It…

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Q: 2.117 A rectangular sedimentation tank is designed for a surface overflow rate (surface overloading)…

A: Surface overflowrate of sedimentation tank, Vo= 400l/hr/m² = 0.4m/hrd= 0.01mmKinematic viscosity of…

Q: A University was opened on 21st March 2021. Due to the high number of students who reported  at the…

A: Given , Saturation of DO at 20°C=9.09 mg/l Discharge of 1st waste point =1.10 m3/sec Dissolved…

Q: The stream shown below has a flow of 28,000 m³/d, and a cross-sectional area of 35 m². The stream is…

A: k1=0.18/day for BOD assimilation in the riverk3=0.01/day for BOD sedimentation in the…

Q: As a process engineer, you are designing sedimentation tanks for a new drinking water treatment…

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Q: Q1) At a particular time, the storage in a river reach is 60 x 103 m 3. At that time, the inflow…

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Q: As a process engineer, you are designing sedimentation tanks for a new drinking water treatment…

A: Horizontal movement velocity of water is given by ; Vwater =2.0 mm /s Convert it into m /sec 1 m =…

Q: A detention pond is designed to achieve 100% removal of 0.1 mm fine sand particles at the design…

A: Given in the Question: Fine sand particle diameter = 0.1mm Design flow rate  = Q Pond Flow rate= 2Q…

Q: A tannery with a wastewater flow of 0.011 m½ and a BOD; of 590 mg/L discharges into a creek. The…

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Q: Q.5 A 6-acre basin in with soil type C is to be developed into 2 acres of commercial use (C = 0.95,…

A: a) by rational methodQ=CiAwhereC= runoff coeffceinti=rainfall intensityA= drainage area 1. find…

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.