8 rapid sand filters are used to treat 35 MLD of water with rate of filtration 4000 lit/hr/m². If back washing rate is 4 times rate of filtration and duration of back wash is 15 minutes operated once in every 24 hrs, then the percentage of filtered water required to back wash the filter is

8 rapid sand filters are used to treat 35 MLD of water with rate of filtration 4000 lit/hr/m². If back washing rate is 4 times rate of filtration and duration of back wash is 15 minutes operated once in every 24 hrs, then the percentage of filtered water required to back wash the filter is

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: What is the solids loading on the filter assuming an influent TSS = 20 mg/L?

A: Step 1: Step 2: Step 3: Step 4:

Q: rapid sand filter is required to treat the flow of 0.50 m³/sec. The filtration rate is 120 m³ per…

A: Given information, Flow of water = 0.5 m³/s Area of filter = 50 m² Backwashing interval = 30…

Q: Q #2 Design A rapid sand filter to serve a little city with an annual water consumption rate of…

Q: Solids analyses were conducted on the domestic wastewater that was tested for BOD. The tests were…

A: Total solid Total solids in water are made up of dissolved solids as well as suspended and…

Q: QUESTION#1: Three wastewater samples has dissolved solids, and Initial weights and final weights As…

A: Given data in question Initial and final weights of sample Volume of sample 20 ml = 20×10-3 litres…

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

Q: A wastewater sample is experimented for 5-day BOD at 20°C and it is found to be 120 mg/L. If the…

Q: b) Determine the concentration of the effiuent BOD, for the two-stage trickling filter described…

A: DESIGN FLOW = 0.0509m3/s influent BOD5=260 mg/l diameter of each filter = 24 m depth of each filter=…

Q: Q3/ If the discharge of the river is 110 ft /sec and the boron concentrations for the river and the…

A: Discharge of river QR=110 ft3/sectotal discharge after mixing waste water QT =185 ft3/swaste water…

Q: Solids analysis is one of the most widely used parameters for assessing water quality. Use the…

A: Given, Tare mass of evaporating dish=4.3520 g Mass of evaporating dish plus residue after…

Q: Q.24 lins The MLSS concentration in the aeration tank of extended aeration activated sludge process…

A: Given data- MLSS concentration = 4000 mg/L, 1 litre of sample settled in 30 minutes. Sludge volume =…

Q: a) Describe typical rapid sand filter operation and back wash operation, support your answer with a…

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

Q: A class A pan was set up adjacent to a lake. The depth of water in the pan at the beginning of a…

A: Given data:initial depth of water in the pan (di) =200 mmrainfall depth (dr) =50 mmwater removed…

Q: Onatural water is also know as a- Raw water. b-purified Water if in sedimentation tank, Volume of…

A: Given Natural waterDimensions of sedimentation tank 20×100×30 mFlow rate 25 m3/minTofind out Choose…

Q: 2. A scrubber separator is used to remove sulfur dioxide (SO2) from a gas stream. A 0.5 m/sec inlet…

Q: A ground water supply has been contaminated with ethylbenzene and the remedial action has been…

A: GIVEN- Maximum level of ethyl benzene in the water=1mg/l KLa=0.016 s-1QW=7.13…

Q: A wastewater is expected to have BOD," of about 300 mg/L. The initial DO of dilution water is 8.5…

Q: Problem 4In water and wastewater treatment processes a filtration device may be used to remove water…

A: Given:Initial concentration of sludge (C1): 20,000 mg/LInitial volume of sludge (V1): 100 m³Final…

Q: A complete mix activated sludge secondary treatment plant is wasting from the return sludge line.…

A: Solution: Given Data: Mean cell solids residence time Qc=5 daysV=1000 L=1 m3MLVSS Xt=2000 mg/LWaste…

Q: You are to design a single-stage, stone-media trickling filter for the treatment of 0.5 mgd…

A: According to given data stone-media trickling filter for the treatment of 0.5 mgd wastewater…

Q: A water treatment plant has rapid sand filters. Each filter is 15 ft x 15 ft (square). Each filter…

Q: 4. A chlorinator setting is increased by 4 lbs/day. The chlorine residual before the increased…

Q: Design a trickling filter system for BOD removal without the nitrification requirement, to treat…

A: Given,Average flow of waste water=200 m3/dInfluent BOD = 200 mg/LInfluent Ammonia = 42…

Q: a) Determine the total GMF surface area required to filter a volumetric flow rate of 10.0 MGD at a…

A: Volumetric flow rate, Q = 10 MGD Filtration rate = 4.0 gallonsmin-ft2 For backwashing, Backwashing…

Q: 8 rapid sand filters are used to treat 35 MLD of water with rate of filtration 4000 lit/hr/m². If…

Q: () A wastewater sample is being analyzed to determine its BOD content. The sample is diluted in…

A: Volume of wastewater sample=5 mL Volume of distilled water added to sample for dilution=295 mL Total…

Q: A stack was sampled for 8 minutes. The gas velocity (at stack conditions) through the sampler was…

A: Part-a -

Q: 40 30 20 20 15+ 10 10 10 15 20 25 30 Air temperature, "C 35 Wind velocity, km/h 4 40 35 30 25 20 15…

A: Calculate the rate of evaporation from the following equation: E=5(Tc+18)2.5-r(Ta+18)2.5V+4×10-6…

Q: There is sedimentation tank that is used to remove suspended solid particles from an incoming…

A: Given Discharge= 150m3/hr surface area= 15m2

Q: A BOD analysis was conducted on a partially-treated sewage at 25°C. Only 20% of the volume of BOD…

Q: A conventional trickling filter is to reduce BOD of wastewater from 250 mg/1 to 100 mg/1. The…

Q: determine the air flow rate , residence time, gravitational separation oval efficiency when the…

Q: After primary treatment, a municipal wastewater contains 150 mg/L BOD5. The wastewater flow of 0.44…

A: To determine- Aeration volume (m3)

Q: For a specific month pan evaporation 200 mm, crop coefficient is 0.5, calculate water requirement of…

A: given pan evaporation=200 mmcrop coefficient=0.5it is required to find the water requirement of the…

Q: H1 H2 Toe filter H1 12m and H2 2m Calculate head loss and head available at red, blue, green, purple…

A: H1=12m H2=2m

Q: A mechanically cleaned bar screen is used in preliminary treatment for the following conditions:…

A: 1)Given datawask water flow rate(Q)=1,00,000 m3/d=1,00,00024*60*60 m3sec=1.157 m3/sApproach velocity…

Q: Then, you were asked to find out the biodegradability of this wastewater by conducting a 5-day…

Q: A village has a population of 200 with an average rate of water demand of 100 litres per capita per…

A: Given data- Population of village P=200, Average water demand WD=100 litres/per capita/day, Average…

Q: An activated sludge process is to be designed to treat a sewage flow of 8640 m3/day with BOD of 200…

Question

8 rapid sand filters are used to treat 35 MLD of water with rate of filtration
4000 lit/hr/m². If back washing rate is 4 times rate of filtration and duration of back
wash is 15 minutes operated once in every 24 hrs, then the percentage of filtered water
required to back wash the filter is

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

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps

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

I need answer quickly
PLS ANSWER ASAP THANKS!
8 rapid sand filters are used to treat 35 MLD of water with rate of filtration 4000 lit/hr/m². If back washing rate is 4 times rate of filtration and duration of back wash is 15 minutes operated once in every 24 hrs, then the percentage of filtered water required to back wash the filter is
If (Qr/Q=120 percent of discharge), effluent BOD concentration=80ppm, volume of filter =825m3 , discharge =50L/sec , The influent BOD concentration equal: Choose one: a. 277.89 b. 277.2 c. 276 d. 275
C A trickling filter plant treats 1500 cum per day of sewage with a BOD, of 220 mg/L and a suspended solid concentration of 250 mg/L. Estimate the total solid production assuming that primary clarification removes 30% of BOD and 60% of influent solids. Take the solid production in the trickling filter as a 0.5 kg/kg of the applied BOD.
(c) A filter has a head loss of 0.30 m when clean and 1.30 m after 24 hours of filtration at a rate of 1.5l/s. . Estimate the following if the filtration rate is changed to 2 l/s i. head loss immediately after backwash ii. 10 hours later
In rapid sand filters, the flow rate capacity is 0.3 m3/s and the filtration rate is 100 L/m2.min. When one filter is stopped the filtration rate become 150 L/m2.min. If each filter is backwashed for 5 mins and backwash rate is 60 m3/m2.hr. Find the number of filters, area of each filter, percentage of backwash water to filtered water if the filter is stopped 30 min/day. Also, find the diameter of the pipe which transport the backwash water if the designed velocity is 3m/s.
I need a step by step process on solving this homework question.
Determine the diameter of a single-stage rock media filter to reduce an applied BOD, of 125 mg/L to 25 mg/L. Use a flow rate of 0.14 m'/s, a recirculation ratio of 12.0, and a filter depth of 1.83 m. Assume the NRC equations apply and that the wastewater temperature is 20°C.
Can you please help me with the homework problem
Design the following items for an aerated grit chamber for the treatment of municipal wastewater. Using two grit chambers. The required data for design is listed in table below. The average flow rate Peaking factor The average detention time at peak flowrate The width: depth ratio Depth Air supply per unit of length Grit quantity per day at peak flow 0.45 m3/s 3 min 1.25: 1.0 3.0 m 0.5 m³/m. min 0.05 m³/103 m³
Hello You have already solved this question but correct answer is not 0.07m/sec. Please try to solve the question as per question. Thanks