The purpose of this study is to analyze the potential of resource
recovery form solid waste in Khulna, the third largest city in Bangladesh.
Its specific objectives relate to the solid waste in Khulna City Corporation
area, such as:
analysis of the generated solid waste;
· Estimation of the quantity of the generated solid waste;
· Characterization of solid waste in different categories
and determination of their potential for reuse;
· Examination of the present practices of waste reuse and
potential for further reuse; and
· Preparation of preliminary plan for resource recovery
Based on the data collected
from Khulna City Corporation area, the present waste generation
in Khulna is estimated at approximately 200 tons/day. The estimate
per capita waste generation rate works out at 0.22 kg/cap/day.
Sample survey in residential,
commercial and market areas indicates that compostable portion of
waste varies between 75 to 92 percent of the generated waste in
the aforesaid areas. Average compostable portion of the waste in
Khulna City Corporation area is estimated at 78%, while the remaining
22% is non-compostable.
Informal sector is playing
an important role in Khulna in recycling of solid waste, dealing
only with in-organic waste. It is estimated that 6% of the total
generated waste (i.e.200 tons/day) is recycled daily in Khulna City
Corporation area. The study finds that between 4700-9400 people
are working in the informal sector relating to waste recycling activity.
by informal sector includes paper, glass, plastic, aluminium, iron,
tin, bones and battery. Excepting bone, paper and aluminium, all
other retrieved materials are transported to industries located
in Dhaka, Jessore, Kushtia, and Barisal as raw materials for new
Although the informal
sector extracts most of the readily recyclable materials from Khulna
waste stream, still considerable value remains in what they leave
behind. This value lies in compostable portion (78%) of the total
waste that may be recycled through composting.
It has found that organic
portion of Khulna's waste stream can be recycled through small scale
decentralized composting plants in financially sustainable manner
located in different parts of Khulna City Corporation area. Three
implementation options have been identified for composting plant
in Khulna which are:
- Composting unit as
Integrated System in Municipal SWM System.
- Composting unit as
Community Self Effort in Managing Waste; and
- Composting plant as
a micro enterprise
At present there is no
composting plant in Khulna City Corporation area. To create interest
amongst the private sector, local communities and the Khulna City
Corporation regarding composting, it is important to initiate a
demonstration plant in Khulna to determine its viability, both technical
and economic. However, it is expected that after field demonstration
micro enterprises would feel encouraged to take up small scale composting
schemes as commercial venture.