Please do all and explain. Question 3In which device the collection efficiency increases over time?O ESPO baghouseO cycloneQuestion 4Fly-ash resistivity decreases with increased sulfur content.O TrueO FalseQuestion 5True or false: In reverse-air and shaker baghouses, the actual filter velocity is used to calculate thefilter drag in a compartment.TrueFalse

There are many devices used to reduce the amount of sediments released into the atmosphere. Cyclone…

Question 3 In which device the collection efficiency increases over time? O ESP O baghouse cyclone Question 4 Fly-ash resistivity decreases with increased sulfur content. O True False Question 5 True or false: In reverse-air and shaker baghouses, the actual filter velocity is used to calculate the filter drag in a compartment. True False

Question 3 In which device the collection efficiency increases over time? O ESP O baghouse cyclone Question 4 Fly-ash resistivity decreases with increased sulfur content. O True False Question 5 True or false: In reverse-air and shaker baghouses, the actual filter velocity is used to calculate the filter drag in a compartment. True False

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter7: Thermal Processes

Section: Chapter Questions

Problem 7.12P

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Design a trickling filter system for BOD removal without the nitrification requirement, to treat municipal wastewater with an average flow of 200 m3/d (Qin) and influent BOD of 200 mg/L and Ammonium (NH4-N) of 42 mg/L. Make appropriate assumptions and use the design indicators for plastic media filters as given below. What are the possible effects of the peak flow of 1.5 times occurring once in a month? Volumetric loading rate (Bv)= 0.5 kgBOD/m3.d Volumetric loading rate for NH4-N (Bv, NH4-N)= 0.2 kgNH4-N/m3.d Hydraulic loading rate (qh= Q/AR)= 1.2 m/h Recirculation ratio (Qr/Qin) = 0.5
a) Calculate the organic loading rate of the trickling filter in lb BOD/day/1000 ft3 with the data below. b) What kind of media filter is used in the above question (2a)? Justify your decision. Diameter of TF 60 feet Depth of Media 15 feet Influent Flow 1.5 mgd Influent BOD 150 mg/L
(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
Consider a 98% efficient ESP which removes, fly ash from combustion gases flowing at 100 m3/sec. The resistivity of the ash is 1.0 (10)10 ohm-cm. Calculate the total collection area required.
Consider the single stage trickling flter plant from the solutionin Example 9.1. The use of a single stage fIlter produced a planteffciency of about 75%. To increase plant effIciency, the engineerdecides to add an identical second stage fIlter in series to the frstone. The wastewater fLow rate is 2000 m3/d with a BOD5 concentration of 400 mg/L. Primary clarifcation removes 30% of the BOD5.The filters are each 12 m in diameter and 1.5 m in depth. The directrecirculation ratio for each stage is 2.0. Wastewater temperature is20°C. Calculate the second stage hydraulic loading rate, organicloading rates, effuent BOD5 concentration, and overall plant effIciency. Comment on the advantages/disadvantages of using singlestage versus two stage trickling fIlters.
Please asap... One air emissions treatment (system) requires a removal rate of 98.5%. It is known that there is a cyclone dust collector before the electrostatic precipitator, and its efficiency is 60%. What is the efficiency of the electrostatic precipitator?
Find the collecting plate area of a horizontal-flow, single-stage electrostatic precipitator handling an average gas flow of 2.5 m3/s from a pulverized coal-fired boiler. The required collection efficiency of ESP is 98%.
it of particulate matter left in soluthon during a filtering pro p(n)=400(2)-0.4n, where nis then ps. Find the amounts ef tor n=0 and n=5. le number.
A baghouse that employs a shaker collection method is being designed to remove sawdust particles originating from a sawmill plant. What fabric area is required for the baghouse if it treats 15,000 ft3/min of polluted air? How many bags are required if the bags are cylindrical and are 6 inches in diameter and 15 ft long? Assume the filter manufacturer has specified a woven fabric.
Calculate the anthracite diameter for a deep-bed anthracite filter of 1.5m with a porosity of 42%. The clean-bed headloss is 1.8 ft at a filtration rate of 13.5m/h and the temperature of 10°C. Kv=228, Ki=4.4 Please correct solution
A baghouse (filters) that employs a shaker collection method is being designed to remove 99.75% of incoming stream of sawdust particles originating from a sawmill plant. The manufacturer has specified a woven fabric for cylindrical bags having dimension of 15 cm in diameter and 6 m long. If the filters are treating 450 m3 /min of polluted air, calculate the total fabric area required, and the number of bags required. Assuming that the terminal velocity for sawdust is 1.1 m/min.
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