The sedimentation tank is due for cleaning and its volume will be drained into half. The tank has a uniform cross-section area of 10m by 10m and currently filled at depth of 6 meters. If the orifice drainer has a coefficient of 0.90 and diameter of 5 centimeters, how much time in seconds would it take to reach the desired level for cleaning?
Q: Design the in-line storage volume required to equalize the flowrate by using the following data.…
A: Time (hour) Flow (m3 /s) Volume (m3 ) 0000 0.0591 425.52 0200 0.0336 241.92 0400 0.0297…
Q: A city is planning to install a new settling tank as an upgrade to their existing water treatment…
A: Design flow= 0.5 m3/sremoval of suspended solids = 65%Depth D and sampling time (min) deffers
Q: QSDistillation columns are used to separate chemical substances based on the differences in their…
A: To find the equation of plate and surface area not covered by the bubble caps
Q: To determine the infiltration capacity of a soil, the following experiments were made with a ring…
A: Horton's equation fp= fc+(fo-fc) e-kt here, fp= infiltration capacity at t fo= cumulative…
Q: There is a sedimentation tank that is used to remove suspended solid particles (diameter of 100 um…
A: Given Data : ρp=2650 kg/m3 ρf=999.7 kg/m3 Dp=100×10-6 m μ=1.307×10-3 Ns/m2
Q: CHANGE OF STORAGE VOLUME PART A At a particular time, the storage in a river reach is 84000 m. At…
A: Initial storage in river =84000m3Initial inflow, I1=3.1m3sInitial outflow, O1=3.7m3sFinal inflow,…
Q: hydrology 4
A: The following data is given:
Q: A water treatment plant treats 6000 m3 of water per day. As a part of the treatment process,…
A: Given : Discahrge (Q)=6000 m3/dayOver flow rate (O.F.R)=1.5 m/hrDepth (h)=3 m
Q: In a furrow irrigation system, the following information is given • Length of a furrow = 200 m . •…
A: l = 200m Q = 1.5l/s w = 80cm d = 100mm It has been asked in the question to determine the irrigation…
Q: Neglect the weight of the drum in the following problem. A sealed cylindrical drum has a diameter of…
A: The volume, mass and density is corelated with one another, V=MD here, volume is V, mass is M and…
Q: (b) A well penetrates an unconfined aquifer. The water level in the well prior to pumping was 14 m.…
A: Hydraulic conductivity: The measure of the ability of material for the transmission of fluid through…
Q: Given below is the data related to activated sludge process: Plant inflow = 8800 m3/day Recycle flow…
A:
Q: . In an oil-water system, the following fluid and rock data are available: h = 60' h, = 25' Po =…
A: Critical flow rate is generally the minimum flow rate that keeps biofilm deposits from forming on…
Q: Q1 Find the efficiency of flocculant settling tank if tank depth is 3 m and surface loading rate is…
A: Given data:- Depth of tank, d = 3 m Surface loading rate is 4 m/hour The following data is given in…
Q: Example A rectangular sedimentation tank with W=25m, L=50m and h-3m. The flow rate 1500 m/h, and the…
A: Sedimentation tank is the place where the solid waste particles and many effluent and influent…
Q: Porosit, n = 0.3 Hydraulic conductivity, K = 1 m/day protected wetlands D. 5 h=90m с El water table…
A: Given data: Porosity(n)=0.3 Hydraulic conductivity(k)=1 m/day Number of flow lines=4 Number of…
Q: Compute the daily evaporation from a Class A pan if the amounts of water added to bring the level to…
A:
Q: The following data were reported on the operation of primary settling tank and activated sludge…
A:
Q: Q10.8 Hydraulic conductivity of am aquifer is known to be 8 ft/day, and its dimensions are estimated…
A: Given that: Hydraulic conductivity of aquifer, k=8 ft/dayDimensions of the…
Q: if you are given the following data, which are demonstrated also in Figure below. H = 1 meter h =…
A:
Q: The following were the monthly evaporation data in cm in certain year (January- December) in the…
A: Given data: Evaporation data: 15.7, 14.1, 16.9, 24.0, 27.5, 21.4 15.7, 16.2, 16.2, 20.5, 15.7,…
Q: On a given day, the depth of evaporation in a pan was 3.2 mm. Estimate the evaporation volume in a…
A:
Q: SITUATION. After 24 hours of pumping at 50 liters/sec, the water level in an observation well at a…
A:
Q: 2. The following data are the daily amounts of rainfall and water added to a pan (both in inches).…
A: Given values- To Find- Daily Evaporation rates.
Q: is 500 ml. The internal diameter of the permeameter is 5 cm and the measured difference in head…
A:
Q: You are working as a trainee engineering in a company ABC, is the leading manufacturing company for…
A: Fig, 1.1 aDifference in head (H) = 20 mkent = 0.5kexit = 1Diameter of pipe (D) = 50 mmLength of…
Q: Research and solve your own sample problem for flow measurement (Bernoulli's equation) for the…
A:
Q: The infiltration capacity in basin is represented by Horton's equation as fp=5.0 + e-St where fp is…
A:
Q: During a laboratory test on a water pump appreciable cavitation began when the pressure plus…
A:
Q: Calculate the minimum dimension of a particle that can be completely removed from a settling…
A: Given: Overflow rate, v = 30 m3/d/m2 Specific gravity, G = 2.65 Dynamic viscosity, μ = 1 x 10-5…
Q: 7 Homework 1. Dervie and prove Table 2. 9.1 Water injection is carried out in a 50 ft thick, 300 ft…
A: Note : Since you have asked multiple questions, we will solve the first question for you. If you…
Q: A Venturi meter with a throat of 15 cm is used to measure the flow rate of water along a horizontal…
A: Step 1
Q: The monthly pan evaporation measured in a lake for the month of January was 16.7 cm. If the average…
A: To find evaporation loss ?
Q: The following are the daily pan evaporation data in mm in a certain week. What is the evaporation…
A: Given: The table is given below, Day 1st 2nd 3rd 4th 5th 6th 7th Evaporation (mm) 9 9 12 8 7 9…
Q: The hydraulic conductivity (K) of a homogeneous clay/sand mix aquifer is 2x10-4 cm/sec. The…
A: Given data Hydraulic conductivity (K)= 2×10^-4…
Q: Mart April 1,7 3,3 Will May 3,1 2,8 July 4,3 1,8 June Septembe E (mm/day) A (hectare) 2,1 3,2 3,9…
A:
Q: A primary clarifier is to be designed to treat a municipal wastewater. The influen to the clarifier…
A: The given data is: Flow rate=7570 m3/day Total suspended solid concentration=320 mg/l Now as 65% of…
Q: A sewage treatment plant for a town with 120000 population and water average temperature of 20'C…
A: Note- Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…
Q: Water treatment plant : SOR = 0.35 mm/sec; The analysis of this water found that there are 6…
A:
Q: 1. A wastewater treatment plant uses a circular sedimentation basin to treat 3.1 MGD of domestic…
A: 1) Detention time = Total volume of tank/ discharge
Q: Estimate k and a in the infiltration equation (D = kt“) (t in minutes and D in mm) for a water run…
A: Given, Infiltration equation = D=kta q=5.5 l/sec Depth of flow,d= 5 cm
Q: 3. Based from the pump performance curve below, calculate the following: a) Specific speed b)…
A: Solution- The given values are as follows,Pump performance graph,The Specific speed & suction…
Q: A wastewater treatment plant of daily flow 204 000 m^3, consist of two screens, the characteristics…
A:
Q: A 1220 mm-diameter ISI pan, with a depth of 255 mm, was fully filled and was used to simulate the…
A:
Q: Question 3 An irrigation canal is 80 km long. It has an average surface width of 15m. If the…
A: Given, Pan Coefficient cp = 0.7 EL= 5mm/day
Q: Solve the following: To determine the daily evaporation at lake, a USWB evaporation pan is…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: 4. The results of the liquid limit tests are given below 11 No of blows Water Content (%) | 53.9…
A:
The sedimentation tank is due for cleaning and its volume will be drained into half.
The tank has a uniform cross-section area of 10m by 10m and currently filled at depth of 6 meters.
If the orifice drainer has a coefficient of 0.90 and diameter of 5 centimeters, how much time in seconds would it take to reach the desired level for cleaning?
The correct answer has a margin of 10 seconds from the exact answer.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- An engineer is attempting to estimate a) the hydraulic retention time (HRT), and b) the volume of a small lake. Using Br- as a conservative tracer, they very quicky adds NaBr from a boat in the middle of the lake and observes it to distribute almost instantly to a Br- concentration of 100 mg/L (precisely!). After 60 days, the concentration of Br- has dropped to 40 mg/l. What is the HRT in days? The outflow of the lake is measured by through the pipes in the dam that holds water in the lake. The total flow is 10,000 m3 /day. What is the volume of the lake?Please answer all 1. List the three corrections which should be applied to the hydrometer readings. 2. Why is it important to remove the hydrometer from the measuring cylinder between readings? 3. A hydrometer test has the following results; Gs = 2.70, temperature = 240C, and L = 92 mm at 60 minutes after the start of sedimentation. Calculate the diameter of the smallest-size particles that have settled beyond the zone of measurement at that time (use the table in the lab manual to find, A=0.0128). D(mm) = A sqrt( L(cm) / t(min) )The following were the monthly evaporation data in cm in certain year (January- December) in the vicinity of a lake: 15.7, 14.1, 16.9, 24.0, 27.5, 21.4 15.7, 16.2, 16.2, 20.5, 15.7, 15.4 The water spread area in the lake in the beginning of January was 3.2 km² and at the end of December 2.6 km². Calculate the loss of water in million m³ due to evaporation in that year. Assume a pan coefficient of 0.71.
- Take note: Answer and write your solution on a clean paper clearly. During a flood flow the depth of water in a 12 m wide rectangular channel was found to be 3.5 m and 3.3 m at two sections 300 m apart. The drop in the water-surface elevation was found to be 0.18 m. Assuming Manning’s coefficient to be 0.023, determine the following: a. Average value of k? b. Estimate the flood discharge through the channel ?A drainage pipe became completely blocked during/ a storm by a plug of sand, 1.5 m long, followed by another plug of a mixture of clays, silts and sands, 0.5m long, as shown in the attached figure. When the storm was over, the water level above ground was 1 m. The coefficient of permeability of the sand is 2x that of the mixture of clays, silts and sands. a. Calculate the pore water pressure at the center of the sand plug in kPa.Calculate the pore water pressure at the center of the mixture of clays, silts and sands in kPa. Find the average hydraulic conductivity in the sand. Find the average hydraulic conductivity in the mixture of clays, silts and sandsA drainage pipe became completely blocked during/ a storm by a plug of sand, 1.5 m long, followed by another plug of a mixture of clays, silts and sands, 0.5m long, as shown in the attached figure. When the storm was over, the water level above ground was 1 m. The coefficient of permeability of the sand is 2x that of the mixture of clays, silts and sands. a. Calculate the pore water pressure at the center of the sand plug in kPa
- A Venturi meter with a throat of 15 cm is used to measure the flow rate of water along a horizontal pipe that has an internal diameter of 17 cm. The flowmeter is calibrated using a solution of salt with a concentration of 10 gl–1 fed upstream of the meter at a rate of 50millilitres per second. If the pressure difference between the upstream position and the throat is found to be 759 Nm–2 A when a sample of salt-bearing water was analysed downstream from the flowmeter and found to be 15 mgl–1 , determine the flow rate of waterthrough the pipeline and the coefficient of discharge of the flowmeter.You are evaluating the performance of a settling basin within a drinking water treatment plant. (a) What is the terminal settling velocity of a particle with a specific gravity of 1.4 and a diameter of 0.010 mm in 20 ̊C water?(b) Would particles of the size in part a be completely removes in a settling basin with a width of 10.0 , a depth of 3.00 m, a length of 30.0 m, and a flow rate of 7,500 m3/d? Answer yes or no, and prove with calculations. (c) What is the smallest diameter particle (in micrometers) of specific gravity 1.4 that would be removed in the sedimentation basin described in part b?The monthly pan evaporation measured in a lake for the month of January was 16.7 cm. If the average water surface area is 2.55 km^2 , estimate the evaporation loss that month in cubic meters if the pan coefficient is 0.70?
- Gave wrong values earlier. These are the correct values A settling tank having a depth of 3.5 m and surface area of 1000 m2 is used to remove particles of size 0.01 mm and specific gravity of 2.6. Calculate the removal percentage of the tank for the discharge of 7000 m3/d. Take viscosity of water as 1.1x10-3 kg/m.s.A wastewater treatment plant will receive a flow of 30,000 m3/day. The plant has a 3.6 m deep circular primary clarifier with a surface overflow rate of 60.0 m3/m2-day.a. Calculate the surface area (m2), diameter (m), volume (m3), and hydraulic retention time of the primary clarifier.b. How long will it take a 1.0 mm particle with a density of 1500 kg/m3to settle in the primary clarifier? show all workA falling head hydraulic conductivity test is performed on a sample of soil. The standpipe. having a diameter 0.35 cm is observed and it takes 80 seconds for the water to drop by 70 cm from an initial hydraulic head of 90 cm. The sample has a length of 22 cm, and a diameter of 5 cm. Compute the rate of flow of water in the soil (in cm³/s). Answer in 3 decimals Pls answer asap