Collection of solid waste

Collection of Solid WasteSubmitted TO:

Dr. Nehreen MajedAssistant Professor

Department of Civil Engineering

Submitted By:Md. Moniruzzaman 11205042Md. Tanvir Hossain 11205044Md. Al-Amin Parvez 11205056Md. Abir Hossain Khan 11205060Sabit Rakin Ahmed 11205074Md. Tauhidul Karim 11205075

University of Asia PacificDepartment of Civil Engineering

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.

Types of solid waste in DhakaThe main types of solid waste in Dhaka city’s are: 1. Household Waste 2. Commercial Waste 3. Medical Waste

1. Dhaka city corporation. 2. Some private society

Who collect solid waste in Dhaka city?

Classification of collection system

Based on the availability of service1. House-to-House: Waste collectors visit each individual house to collect garbage. The user generally pays a fee for this service.

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.

Classification of collection system

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

Collection Method

Based on mode of operation:1. Hauled Container System2. Stationary Container system

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.

Hauled Container System

1 2 3 4 5

Disposal Site

Number of Containers = nExample below: n=5

The number of drive betweencontainers =n-1Example: dbc = 4

Stationary Container System

• Stationary Containers : 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.

Stationary Container System

Collection System in Dhaka City

Collection System in Dhaka City

Problems in Collection System

• Labor1.Labor unskilled2.High turn-over rates3.Few prospects for mechanical replacement of manual labor4.Injuries and poor working conditions5.Labor intensive6.Limited career opportunities

Problems in Collection System

• Vehicle Problem– Falls off trucks– Hit by cars– Inappropriate disposal of wastes– Lifting injuries

Problems in Collection System

• On Street Container & Passengers Problem

Some Exploration

• Collection of recyclables, yard waste, special wastes

• Yard waste containers - bagged material must be debagged prior to composting

• Automated collection • Development of efficient routes• Vehicle weight restrictions• Vehicle turning radius and clearance

Recruit Skilled labor

• Skilled Labor • Unskilled Labor

Last word

• To make our city clean & fresh we have to make sure a good waste collection system

for our beloved city.

In Our Real life

References:1. https://en.wikipedia.org/wiki/Waste_collection2. https://www.google.com.bd/search?q=waste+collection&biw=1280&bih=929&tb

m=isch&tbo=u&source=univ&sa=X&ved=0CC4QsARqFQoTCOfQmfSFkcYCFZAvvAodztEAow&dpr=1

3. http://siteresources.worldbank.org/INTURBANDEVELOPMENT/Resources/336387-1334852610766/Chap4.pdf

4. Solid and Hazardous waste management By M. Habibur Rahman & Abdullah Al-Muyeed.