The design flow for a water treatment plant (WTP) is 7.2 x 103 m³/d. The rapid mixing tank will have a mechanical mixer and the average alum dosage is 50 mg/L. The theoretical mean hydraulic detention time of the tank is 1.5 minutes. Determine the followings: (i). The quantity of alum needed on a daily basis. (ii). The dimensions of the tank in meters for a tank with equal length, width, and depth. (iii). The power input required for a G of 1000 s¹ for a water temperature of 25°C.

The design flow for a water treatment plant (WTP) is 7.2 x 103 m³/d. The rapid mixing tank will have a mechanical mixer and the average alum dosage is 50 mg/L. The theoretical mean hydraulic detention time of the tank is 1.5 minutes. Determine the followings: (i). The quantity of alum needed on a daily basis. (ii). The dimensions of the tank in meters for a tank with equal length, width, and depth. (iii). The power input required for a G of 1000 s¹ for a water temperature of 25°C.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Please solve all points

A: 1.1 Proper F/M (Food to Microorganism) ratio in a conventional activated sludge process typically…

Q: Determine the basin size (length, width, and depth in ft) and the power input (hp) required given…

Q: For a spiral membrane filtration system, the membrane was fabricated by adding additional shims to…

A: step 1-

Q: Question A circular primary clarifier processes an average flow of 5005 m³/d of municipal waste…

A: Average flow = 5005 m3/dOverflow rate = 35 m3/m2/dThe diameter of the clarifier is =?

Q: A wastewater treatment plant will receive a flow of 30,000 m3/day. The plant has a 3.6 m deep…

A: Given:- Flow rate, Q=30000 m3/dayDepth of circular primary clarifier, d=3.6 mSurface overflow…

Q: I needed help with part b

Q: 8. The upper portion of an inverted U-tube is filled with oil having a pecific gravity of 0.98. The…

A: Determine the pressure difference (PB - PA).

Q: Given the required grout hydraulic head is 10 m, the head of the grout pipe is 1.5m above the…

A: Given, Grout hydraulic head = 10 m Head of grout pipe = 1.5 m Depth of injection point = 4 m Depth…

Q: As shown in the figure compute the amount and location of the vertical and horizontal components of…

A: Given data,radius is 7.5mL=10mFINDAmount and location of vertical and horizontal component

Q: Direction: An activated sludge system (sketched below) is operating at equilibrium with the…

A: An activated sludge system- Flow rate Q=500 m3/hr, BOD=150 mg/L, Effluent BOD=10 mg/L, MLSS=2000…

Q: A completely mixed activated sludge process operating at equilibrium is designed to treat 300 MLD of…

Q: A decision has to be made on wether touse 3 in or 4 in ID tubing for a well with the flowing…

A: Step 1: RequiredTo determine whether to use 3-inch or 4-inch internal diameter (ID) tubing for the…

Q: If the filtration equation for a suspension of solids at a constant pressure of 38.7 psia is:…

A: At constant presssure, P1 = 38.7 psiaThe filtration equation of suspension solids isTo determine the…

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

Q: 1. The lab placed a sample in an evaporation dish and evaporated it at 105°C finding that the dish…

A: Given, Design flow, Q = 20 mgd or 20 x 106 gallons Volume of sample, V = 90 ml or 0.09 Liter NOTE…

Q: Q2: A column analysis for an activated sludge su MLSS Conc (mg/l) Settling velocity m/h 1000 2.8…

Q: The minimum temperature of the water is 5 °C, the free chlorine residual in the effluent from the…

Q: Q3. according to the data of water depths in figure below that collected in the cans test find: - 1-…

A: By deducting the minimum water level from the highest water depth and dividing the result by the…

Q: Exercise 4 A treatment plant has the following process diagram. Determine the flow rate expression…

A: Step 1:The plant uses a Bardenpho ™ process, which is a type of activated sludge process.The process…

Concept explainers

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.

Question

The design flow for a water treatment plant (WTP) is 7.2 x 10³ m³/d. The
rapid mixing tank will have a mechanical mixer and the average alum
dosage is 50 mg/L. The theoretical mean hydraulic detention time of the
tank is 1.5 minutes. Determine the followings:
(i). The quantity of alum needed on a daily basis.
(ii). The dimensions of the tank in meters for a tank with equal length,
width, and depth.
(iii). The power input required for a G of 1000 s¹ for a water temperature
of 25°C.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Given data

VIEW

Step 2: Determine The quantity of alum needed on daily basis

VIEW

Step 3: Determine input power required

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Q3. according to the data of water depths in figure below that collected in the cans test find: - 1- Christiansen's uniformity coefficient (CU). Using sm = 9 m, SI = 9. 30 degrees 2- the rate of discharge if the time of test 70 min. Assume the losses of sprinkler are zero. 10 degrees 3 1 2 7 4 2 2 4 8 7 5 2 1 8 7 6 4 1 4 8 7 3 3 1
An anaerobic digester is operated with a hydraulic retention time (HRT) of 25 d and a flow rate of 0.85 m³/d. The influent substrate concentration is 18 g/L and the digestion process is assumed to follow first order kinetics with a Ko value of 0.09 d'¹. Calculate: (a) the liquid volume of the anaerobic digester, V (m³) (b) the effluent substrate concentration, So (g/L)
Q/ Design the liquid storage tank if water capacity = 725,000 liters and with following specifications:- == fc' 35 Mpa, fy =420 Mpa Water height Hw-2.5m, Soil height H,= 2m, Ground water height Hg=1.5m Water density Yw= 10 kN/m³, Soil density y= 17.5 kN/m³ and 0 =30.
Calculate the minimum fluidization velocity for an anthracite bed having following characteristics; d90 = 2.9 mm, ?anthracite = 1600 kg/m3, ?water = 998 kg/m3 at 20°C; µ = 1.002x 10-3 kg/m.sec
1. The following information is provided for an activated sludge system design: Parameter Symbol Value Units Flow rate Q 10000 m³/d Influent BOD So 150 mg/L Effluent BOD S 2 mg/L Hydraulic residence time Ꮎ 4 hr Mean cell residence time Oc 6 d Maximum specific growth rate μm 3 1/d Half saturation constant Ks 40 mg/L Yield coefficient Y 0.5 Endogenous decay coefficient b 0.08 1/d Death rate coefficient γ 0.04 1/d Determine: a) The aeration tank biomass concentration (X) in mg/L b) The aeration tank oxygen requirement in kg/d c) The rate of biomass wasting in kg/d
A rectangular settling basin has a depth of 3 m, a length of 40 m and a width of 6 m. The water treated in the basin has a flow rate of 500 L/s and contains 50 mg/L of type a particles, 100 mg/L of type b particles and 180 mg/L of type c particles (particle type letters refer to the particles listed in problem 1). What is the suspended solids concentration in the effluent from the settling basin? Determine the overall percent removal of suspended solids from the water achieved by the settling basin.