Model Question Paper
Sixth Semester-Civil Engineering
Subject: Solid Waste Management
Sub Code:15CV651 Max Mark:80
Note: Answer any Five Questions, selecting one full question from each Module.
Module-1
1a. Define the terms: solid waste and solid waste management.
b. Estimate the unit solid waste generation rate for a residential area having 800
dwellings. The observation made at local transfer station for a week time
revealedthat the waste was carried in self -compacting trucks and flatbed
trucks, whosevolume is 15m3 and 1.25m3and the density of waste is295
kg/m3 and 110kg/m3respectively. Assume 10 self- compacting truck and 20
flatbed truck loads per week.
b.What are transfer stations? Explain the factors to be considered in the design of
transfer station.
OR
2a. Discuss the salient features of the Solid Waste (Management Handling) Rules,
2000,with 2016 amendments.
b. Estimate the moisture content, density and energy content (on dry basis and on
ash free dry basis) of the solid wastesample using the data given below. .
Assume ash content as 5%.
Component by mass Moisture
content,%
Density*,
Kg/m3
Energy**,
kJ/kg
Food waste 12 70 290 4000
Paper 40 06 85 16000
Card board 08 05 50 16000
Plastics 04 02 65 32000
Grass trimmings 15 60 105 6500
Wood 05 20 240 18000
Tiin cans 16 03 90 700
Based on 100 kg waste sample, Based on 1000 kg waste sample
Module 2
3a. What is Incineration? With the help of a neat sketch, explain incineration
process.
b. Mention the different processing techniques adopted for physical, chemical and
biological transformation of solid waste.
c.What is meant by air pollution control? How the pollutants are categorized and
mention the common air pollution control devices used in conjunction with
incinerator.
OR
4a. Explain the 3Ts of Incineration process.(6)
b. Discuss the governing factors considered in design of an incinerating system.(6)
c. Write an explanatory note on mechanical volume reduction.
Module 3
5a. Enumerate and discuss the factors affecting aerobic composting.
b. Determine the landfill area required for a population of 50000, given the following
data.
Solid waste generation: 1.5 kg/person/day
ii) Compacted density of solid waste in landfill: 500kg/m3
iii) Average compacted depth of solid waste: 3M
c. Explain the area method of landfilling technique.
OR
6a. What is composting? Distinguish between aerobic and anaerobic composting.
b. Write an explanatory note on Vermicomposting.
c. What is leachate? With neat sketch, discussthe control of leachate movement in
sanitary landfill sites.
Module 4
7a. Enumerate the various methods of treating bio-medical waste. Explain any
one.(6)
b. Define hazardous waste. Explain the various sources of hazardous wastes.(6)
c. Enumerate the hazardous waste characteristics and explain any one.
OR
8a. What is E-waste? What are the impacts of E-Waste on the environment?
b. What is construction waste?Mention the materials that can be recycled?
C. Write a note on identification and classification of hazardous waste.
Module 5
9a. What is pyrolysis? With a neat sketch, explain the process of Pyrolysis.(8)
b. List the type of Incinerators. With a neat sketch, explain any one.
OR
10a. With examples, explain the energy recovery technique used in the
chemical and biological transformation of wastes.
b. Explain the design criteria for Incineration.