Types of solid wastes collection of solid wastes Solid waste management environmental sciences civil engineering

1. Solid Waste Management
Types of solid wastes
and collection
YOUR
LOGO
Awais Qarni
awaisqarni.iiui@gmail.com
International Islamic University
Islamabad

2. Types of solid wastes
 Broadly there are 3 types of solid waste
 Household waste as municipal waste.
 Hazardous industrial waste
 Biomedical waste or hospital waste as infectious waste.

3.  Household waste as municipal waste
 Municipal wastes are the non-radioactive and non-hazardous solid
or semi-solid waste from household activities, restaurants, public
places, vegetable markets, hotels etc.

4. Municipal wastes

5. With rising urbanization and change in life
style, food and habits the amount of
municipal solid waste has been increasing
rapidly.

6.  Hazardous industrial waste
 In the industrial sector the major generators of hazardous waste are
the metal ,chemical, paper, pesticides, dye and rubber goods
industries.
 Industrial waste is considered hazardous as they may contain toxic
substances
 Hazardous waste could be highly toxic to humans ,animals, & plants.
 Direct exposure to chemicals in hazardous waste such as mercury &
cyanide can be fatal.

8.  Biomedical waste or hospital waste
 Bio-medical waste means “any waste which is generated by the
diagnosis, treatment or immunization of human beings or animals.
 It may include waste like sharp waste pathological waste,
pharmaceutical waste, genotoxic waste ,chemical waste, & radio
active waste.

9. Waste sharps eg : Needles
Discarded MedicinesHuman anatomical waste
Solid waste eg : cotton swabs

10. Collection of solid wastes
 What is Waste Collection?
 Waste collection is a part of the process of waste management. It is
the transfer of solid waste from the point of use and disposal to the
point of treatment or landfill.
 Waste collection also includes the curbside collection of recyclable
materials that technically are not waste, as part of a municipal
landfill diversion program.

11. Classification of collection system
 Based on the availability of service
1. House-to-House:
Waste collectors visit each individual house to collect garbage. The
user pays a fee for this service

12. 2. Community Bins:
Users bring their garbage to community bins that are placed at fixed
points in a neighborhood or locality. MSW is picked up by the
municipality, or its designate according to a
set schedule.

13. 3. Curbside Pick-Up:
Users leave their garbage directly outside their homes according to a
garbage pick-up schedule set with the local authorities (secondary house-
to-house collectors not typical)

14. 4. Self Delivered:
Generators deliver the waste directly to disposal sites or transfer stations,
or hire third-party operators (or the municipality).

15. Collection Methods
 Based on mode of operation:
1. Hauled Container System
2. Stationary Container system

16. 1. Hauled Container System
An empty storage container (Known as a drop- off box) is hauled
to the storage site to replace the container that is full of waste , which is
then hauled to the processing point , transfer station or disposal site.

18. 2. Stationary Container System
In this system, containers used for the storage of waste remain at the point of collection.
The collection vehicles generally stop alongside the storage containers, and collection
crews load the waste from the storage containers into the collection vehicles and then
transport the waste to the processing, transfer or disposal site.