2-14. Using the moisture contents(wet basis) of the waste componentsgiven in Table P2-14, calculate theoverall moisture content of the wastehaving the composition also shown.This calculation can be simplified byassuming 100 lb of waste.Table P2-14Moisture content,Percent byComponentpercent (wet basis)weightFood7010Paper633Cardboard58Plastics25Textile104Rubber23Yard waste6018Metals310Miscellaneous692.Calculate the moisture content of thewaste in Problem 2-14 on both a wetand a dry basis. Why the difference?Which numbermakes more sense to you, and why?3.Determine the composition of thewaste in Problem 2-14 if yard waste issepa-rately collected. How would thisaffect the moisture content?

Answer:1. Calculate the Overall Moisture Content (Wet Basis)To calculate the overall moisture…

Answered: 2-14. Using the moisture contents (wet…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Solid wastes.
Q4 Estimate the energy content of a solid waste sample with the composition below and what is the content on a dry basis and on ash free dry basis? Component Percent by mass Energy kJ/kg Food waste Paper Cardboard Plastics Garden trimming Wood Tin cans Total 15 45 10 10 10 5 5 100 Based on 100 kg sample of waste Moisture content% 70 6 5 2 60 20 3 4,650 16,750 16,300 32,600 6,500 18,600 700
An air classifier is applied to separate a mixture of four solid waste components shown in Figure 5-20 above. All four components have equal mass.a) Determine the mass composition in percent of the four components in theoverflow (extract) if the air classifier is operated at an air velocity of 1,000 ft/min.b) Determine the mass composition in percent of the four components in theoverflow (extract) if the air classifier is operated at an air velocity of 2,000 ft/min
Question 4. Consider the liner system at the base and on the side slope of a landfill in figure below. State the function of each of the components. Give the common important / typical requirements or properties such as minimum thickness, permeability, etc. for each. Drainage Layer Geonet Compacted Clay Waste 00.0%% XXXX Subsoil geotextile geomembrane geomembrane
A BOD test is run using 100 ml of treated waste H20 mixed with 200ml of pure water. The initial DO of the mixture is 9.0 mg/ml. After 5 days, Do id 4.0 mg/ml. What is the 5-day BOD of the waste water?
1b The solid-waste composition and the quantity of solid waste generated from two cities located in the developing world are shown in Table Q1b as follows: Table Q1b. The solid-waste composition and the quantity of solid waste generated from two cities. Component City 1 City 2 Food waste (%) 47.0 65.0 Paper and cardboard (%) 6.5 7.5 Ash (%) 39.0 10.0 Other (%) 7.5 17.5 Waste generation rate(kg/person-day) 0.40 0.350
A truck dumped industrial waste into a pit. They found the truck 3 days ago with a pure pool of waste. Your lab finds the BOD5 of this waste to be 80 mg/L with a k=0.1/day. What was the waste source? Here are the 3 nearby suspects: Winery BOD ultimate = 275 mg/L Vinegar manufacturer BOD ultimate = 80 mg/L Pharmaceutical BOD ultimate = 200 mg/L
The City of Forty-Five (population 465,565) has requested your assistance in evaluating its solid waste collection system. Determine the mean time per collection stop plus the mean time to reach the next stop, the number of pickup locations per load, and the minimum number of trucks the city must own. The City of Forty-Five collection data are as follows: Average truck capacity = 12.5 m3; Average observed compaction ratio = 2.87 Crew size = 2; Number of pickups = 1 /wk (no rear-of-house service) Average number of cans per stop = 2.63/wk at 0.1136 m3/can Average number of residents per stop = 5 Average uncompacted density = 105.76 kg/m3 Average transport time to disposal site including delays and dumping = 1.78 h/trip Average number of trips to disposal site = 2/d; Rest breaks = 2 at 28.0 min Average maintenance downtime = 37.0 min/d; Average workday = 8.00 h Average percent of trucks out of service for major repairs = 15.0% Number of workday per week = 5
Assuming waste not recovered all goes to landfills. Determine the total landfill capacity consumed national wide each year. The specific weights of waste at landfill are as follows. Convert your answer to # of football stadiums filled. Area of football stadium = 1.75 x size of a standard football field Depth of filling = 30 ft Waste category Specific weight (kg/m³) Aluminum 2470 Steel and other metals 7100 Glass 2300 Paper and cardboard 570 Wood 450 All others ~700
If the BOD4 of a waste is 200.0 mg/L and the ultimate BOD is 270.0 mg/L, what is the rate constant at 10⁰C.
How many residences can be served? If we have a compactor truck which has a capacity of 30 yd3, each truck makes 3 trips/day 5 days a week, each residence has 3 people and each person produces 4lbs of waste. The density of the compacted waste is 425 lbs/yd3.
Waste composition has been measured for two cities. The results are summarized in the given table. City 1 City 2 ... Wet-weight generation rate (kg/person-day) 2.0 1.8 Wet-weight composition (%) Food 15 10 30 40 Раper Yard 20 15 Other 35 35 Moisture content of fractions (% on wet-weight basis) Food 80 50 10 4 Раper Yard 80 30 Other 5 4 (a) Which city generates more paper on a dry-weight basis? (b) Find the percent moisture (wet-weight basis) for City 1.

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