VermiCompost Bin: Wooden bins can be constructed by students, staff, or parents. The size and number of bins needed will depend upon the amount of food scraps produced by your school. Roughly one square foot of worm bin is needed for each pound of food waste produced per week. For example, if your school generates 30 pounds of food scraps each day, five days per week, you will need 150 square feet of bin space to handle the 150 pounds of food each week. Five bins that are each 4 feet by 8 feet (32 square feet) will give you a 160-square-foot area for food scrap recycling.
Worms: Two species of red worms, eisenia foetida and lumbriscus rubellus, work best for vermicomposting but they can’t tolerate high temperatures. Composting worms do not like light. They will do whatever is necessary to escape the light. So keep your compost bins completely dark.
HOPE Art Haiti Vermicomposting Project Blogpost