The Compost could be done in any bin ranging from
plastic buckets to dealwood boxes.
The Bottom of
these bins should have some holes to drain off excess water which can be
conducted into some nearby drains.
First there shall be layer of pebbles/broken bricks to a
level about 5 to 6 inches. Over this there should be a layer of sand
(preferably river sand) again to a level of about 5 to 6 inches. Over this
will be another layer of fresh loamy soil which would house the earth
worms.
The entire
structure is then sprayed with water to make it wet but not soaked
with water. Into this soil layer about 40 to 50 earth worms picked up
from local gardens or vegetations are introduced in different locations.
Then small lumps of wet cow dung are placed again at different places in
the bin over which hay or dry leaves are spread and moistened with water.
The hay and
cow dung mixture will constitute attractive food for the worms which breed
feeding on this. The next generation of worms coming in about 15 to 20 days
will look for food outside the soil layer. That is the time when the
bio-degradable rejects from the kitchen, dining table and house-garden can
be deposited into the bin every day.
Care must be taken to keep the bin moist but not
over-logged with water. The top may be covered with a wire-mesh to keep the
rodents out. The structure because of the worms in it will not emit any
foul smell and therefore will not attract flies or mosquitoes. As the
garbage gets added each day the bottom layers of garbage in a space of
about 30 days will turn into vermi-compost which can be harvested without
disturbing the vermi-bed.
If well-maintained, this could be a perennial source of
vermicompost out of household rejections.
A new twin bin combining both vermi and aerobic composting is being
tried out by Exnora internatioal, at its headquarters (see address below).
For help in setting up a bin in Chennai :
Mr.Paramanandam, Exnora International, 42, Giriappa
Road, T.Nagar, Chennai India
Bucket composters have been supplied to many families in
Chennai by this expert.
This method is also being used by some women entrepreneurs
to put in place large facilities, using organic waste collected from the
community.
There are supplies of not only compost, but also the
individual requirements, including earthworms in Chennai. ContactExnora
Aerobic composting is being promoted in individual
localities in this city, as an easier alternative to vermicomposting.
Despite the enormous garbage problem that it faces, the
civic body for Chennai, the Chennai Corporation, does not have any serious
effort to encourage composting. It handles waste by open
landfilling at Perungudi close to the precious wetland of Pallikarnai in South Chennai and in Kodungaiyur in North Chennai.