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Yard
Waste...Sludge...Elephant Droppings Compost Happens
on Oahu
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| The
first batch of locally produced biosolids compost
is ready for use. If you're a gardener or landscaper,
you may already be using similar products imported
from California. The Barbers Point Navy product
is home-made ... and home-grown, too. |
Composting
organic material has the greatest potential for reducing
Oahu's waste and increasing recycling rates. The volume
is big, the economics make sense and the materials
can be processed and used here on our island. Yard
waste constitutes the single largest volume of waste
material generated on Oahu, amounting to more than
200,000 tons per year. Sewage sludge, most of which
still goes to landfill, accounts for more than 40,000
tons annually. When composted, both of these materials
provide nutrient-rich soil amendment products for
gardening, landscaping and agriculture, and island-wide
disposal could be reduced by a full 15%.
The
challenge at hand is to:
1. set up collection systems to divert large volumes
of yard waste from disposal to composting and mulching
operations,
2. establish a new co-composting facility on Oahu
to process the sewage sludge and
3. further develop the markets for mulch and compost.
The
City has moved forward with a new curbside yard waste
collection program, which now provides service to
more than 100,000 homes on Oahu. If you're in a neighborhood
with automated refuse collection, you may have noticed
a new sticker placed on your cart indicating your
twice-per-month yard waste collection days.
Yard
waste generated by the commercial sector and government
agencies has been restricted from disposal since 1994.
Currently, refuse trucks delivering waste material
to H-POWER or the landfill should contain no more
than 10% yard waste.
The
City and County of Honolulu is in the process of selecting
the best technology for a new co-composting facility
to process yard waste and sewage sludge, or "biosolids."
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Cherell
Gabriel waits for the grass to grow at the new
Waipio soccer park. The City used 5,000 cubic
yards of compost and 5,000 cubic yards of shredded,
crumbed tires to develop the athletic fields of
the new soccer complex. |
Proposals
were submitted some months ago, and the City expects
the new facility to be operational in one to two years.
In the meantime, the City is engaged in a cooperative
effort with the Navy at Barbers Point to compost biosolids
and yard waste, which has already produced an end
product ready for use. A team of specialists from
the University of Hawaii will test for product safety
and nutrient value and begin setting up demonstration
projects over the next few months. Free compost product
will be provided for use in the demonstration projects.
If you would like to participate, contact the City's
Recycling Office at 527-5335.
In
the end, the success of composting is contingent upon
the consumer - you and me. All of these collection
and processing efforts make sense only when the end
product is valued and used. Consumer indications thus
far are positive. Hawaiian Earth Products' Menehune
line of compost and mulch products is being successfully
marketed in local garden shops. Recently, the City's
two new sports complexes temporarily depleted the
stocks of both island composters - Hawaiian Earth
Products and Kalaheo Green Waste Recycling Facility
- with demands for compost to develop the athletic
fields. Free mulch sites around the island require
regular replenishing. Even the Honolulu Zoo has produced
and packaged a new compost product - "Honolulu Zoo
Poo" - which they tout as "made with much aloha by
the Honolulu Zoo crew." Mari and Vaigai, the resident
elephants, are the biggest contributors to this nutrient-rich
product, which is a blend of yard waste and animal
manure (herbivore only). You can find Zoo Poo on sale
in the Zootique when supplies are available.
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The
Honolulu Zoo turned a problem into a valuable product,
blending their yard waste with animal manure to create
a nutrient-rich gardening product. ÒHonolulu Zoo PooÓ
is sold to members of the Honolulu Zoological Society
and is available in the Zootique.
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Neighborhoods
with automated refuse collection also have twice-per-month
curbside yard waste collection service. With this
new service, the City expects to increase residential
yard waste recovery from 10,000 tons to 50,000 tons
annually over the next two years.
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