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Systems of Vermicomposting
Home, classroom, community, and
commercial
Home Vermicomposting
Worm bins in the home can take on a multitude of different sizes, shapes, and
designs. The idea is to match the worm bin with the household. For
large households that prepare many meals, a larger worm bin is called for; a household
where there is single occupancy, may require a substantially smaller bin.
A good idea is to measure the amount of organic material that the home throws
out as garbage per week, for at lease one month. If this is a typical
month the average should be a good estimate of the weekly average. The
bin should be designed to have one square foot of surface for each pound of
garbage per week (one tenth square meter surface for each half kg) (Appelhof
1997).
Once
this estimate of surface area is determined, the bin may be designed (see section on bins).
Community
Vermicomposting
Community-based vermiculture is
run on a bigger scale than that of the individual family–based vermiculture
bin. Most subsistence-based
communities try to utilize every piece of scrap food to feed their animals or
recycle back in to their gardens.
For those communities that are not as sustainable or already use the
traditional composting method can make use of vermicomposting as a tool towards
lessening the amount of garbage that goes in to landfills, decreasing harmful
rodent populations, enriching soils in a quicker time period, and bringing
about employment and profit.
Initially, organizing community vermiculture can be difficult to
bring about but, once everyone knows her or his place, it can be quite easy to
sustain. Since these systems are
set up to bring about benefit with the use of vermicompost in raising their
land productivity or by the sale of vermicompost, vermiculture tea, beds, and
worms, people will be eager to take part.
There are many international communities that have set up their own
systems of windrows and beds. For
more information on setting up a community vermiculture system, the Where in the World section has links to different projects
that are ongoing internationally.
Related Web
sites
Commercial
Vermiculture
Commercially, vermiculture has many different economic angles. A single person, a small village, or a large corporation may use the benefits of vermiculture to make a profit.
There are businesses that specialize in producing the worms themselves. They sell the special breeds of worms for vermiculture to people or organizations that are just beginning vermiculture practices. These businesses are growing in the market as vermiculture gains popularity in the world. Many of these businesses are small operations run by a family or close group of individuals.
In some areas there are large vermicomposting sites that are paid to take community garbage (only organic). For example, some of these sites have become popular on the west coast of U.S.A. These businesses have shown great promise to be a large alternative of the municipal waste stream headed toward landfills or incinerators. Problems have arisen in association with the labor costs needed to sort the garbage, and contamination when the sorting process is not as exact as needed.
In all of these businesses, the product of vermicompost from either the growing of worms or as waste disposal is a valuable commodity. It can be sold on the market as an organic fertilizer. The value placed on vermicompost as a soil additive is growing as people learn the benefits of it. (see section on soil benefits)
For those interested in
starting their own business in raising red worms, a great book to start is
Peter Bogdanov's "Commercial Vermiculture: How to Build a Thriving
Business in Redworms".
Related Web sites
References
Classroom
Rural
Harris,
G.D.; Platt, W.L.; Price, B.C. (Jan 1990) Vermicomposting in a rural community.
BioCycle. {Emmaus, Pa. : J.G. Press.}31, no. 1, p. 48-51.
Commercial