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for year 2015. Figure 12 shows the cumulative
volume of compost under Scenarios A and C.
Converting the volume of compost to
number of bags at 250 kg per bag, there will be
266,300 bags of compost generated for a period
of eight years by composing market waste
(Scenario A), while there will be 538,360 bags
of compost generated by composting waste in
all sectors (Scenario C ). Figure 13 shows the
cumulative volume of compost generated from
composting.
A bag of composts weighs 50 kg and
can be sold at P250/bag. If market waste will
be utilized for composting, there will be 57,590
bags of compost generated by year 2015.
This bags of composts will have an equivalent
amount of P14,397,480 per year or P1,199,790
per month. More so, if all compostable waste
from all sectors will be utilized, there will be
177,860 bags of compost generated by year
2015. This bags of compost will have an
equivalent amount of P44,464,980.00 per year
or P3,705,415.00 per month.
Environmental Implications of Composting
and Recycling Solid Waste
To attain high waste recovery as
mandated by Section 20 of R.A. 9003,
city residents are encourage to segregate
materials usually glass, paper, metals, plastic
containers and sell them to door to door buyers
or junkshop owners. If institutional waste alone
will be recovered for recycling, there will be
88,000 cu m of recyclable waste that will be
sold to junkshops for eight year period. Adding
waste recovery through waste recycling by all
sectors, there will be 145,640 cu m of recyclable
waste that will be sold to junkshops for eight
year period. This means that waste entering
the dumpsite will be reduced correspondingly
by the same amount. If this will be so, lifespan
of the dumpsite will be lengthened and the
operational cost of maintaining the dumpsite
will also be reduced. Since buying activities
are through door-to-door buyers, collection
and transportation expenditures will become a
forgone cost. This will be a sure savings by the
city government.
Figure 12. Cumulative volume of compost under Scenarios A and C
J.B. Guzman
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