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wk. To further increase the volume of recovered
waste, the composting and recycling waste
from all sectors (Scenario C) was formulated.
This could result to a conversion from 92 m3/
wk to 1002 m3/wk of compostable waste and
recovery from 171 m3/wk to 617 m3/wk of
recyclables waste by year 2015.
The Decision Support System (DSS)
can generate future trends of a barangay based
data on the total volume of waste generated,
recovered compostable and recyclable wastes,
collected waste and uncollected waste including
compost. These can guide in the selection of
the best solid waste management option in the
city by knowing the quantity of waste, the kind
of waste, and the manner on how this waste
are disposed or recovered over time. The DSS
can help identify areas for sustainable supply
of raw materials needed for composting and
recycling projects and where to locate such
project.
Scenario C was able to address the
problem of voluminous dumping of waste in
the dumpsite by imposing waste recovery
through recycling and composting all the waste
generated in all sectors. This however requires
change in the lifestyle of the city residents
by becoming aware of recycling, reuse, and
reducing the waste they produce and a support
from the city government by providing facilities
for waste recovery projects.
IMPLICATIONS AND RECOMMENDATIONS
The Decision Support System is able
to generate trends of waste management
scenarios as basis for decision making.
Identifying the sources of supply and determining
the volume of raw materials for solid waste
recovery projects can create awareness and
encourage the city residents to undergo waste
recovery in their own household or even in their
barangay/clusters of barangay as a whole. The
spatial distribution of recyclable materials from
waste can further aid door-to-door buyers to
spot barangay as potential sources of valuable
materials.
The practice of recovering waste
through composting and recycling will eventually
make the city free of littered waste and of carbon
dioxide and toxic materials from burning waste.
The availability of compost will direct farmers
to the practice of organic farming/gardening.
Money obtained from waste will help augment
the meager income of the poor.
It is recommended that the DSS be
used by the city government to:
a. determine the scale of solid waste
recovery projects in order to be assured of a
sustained supply of raw materials,
b. decide what barangay or cluster of
barangays to undergo solid waste recovery
projects, and
c. locate where to put up solid waste
recovery projects
It is further recommended that the DSS
be piloted in any local government unit who
decide to improve their waste management
system.
REFERENCES CITED
BARTON, Allan F.M. 1979. Resource,
Recovery and Recycling. A Willey
Interscience publication.
BETTS, Michael P. 1984. Trends in Solid
Waste Management in Developing
Countries.
COINTREAU, Sandra J. 1984. Solid
Waste Collection Practice and
Planning in Developing Countries.
Conference proceedings.
CUNNINGHAM and CUNNINGHAM, 2007.
Principles of Environmental Science
Inquiry and Publications, 4th ed.
Chapter 13.
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A Geographic Information Systems Decision-Based ..............