India Since July 1995, vermicomposting has been used to process garbage and sewage from 500 homes. The vermifilter can process up to 100 cubic meters of sewage per day, and the purified water is used to irrigate gardens. This low-labor system needs little operation and maintenance. This is one of six large-scale vermicomposting projects developed by Bhawalkar Earthworm Research Institute that have motivated about 5,000 farmers in 16 Indian states to vermicompost their organic materials. Staff volunteers take turns bringing 10 to 20 pounds of food scraps each day from the cafeteria to the worm bins, located outdoors, near the facility.
Employees use the worm castings as a soil conditioner for their plants.
One of the largest vermicomposting operations in the United States, PSF has 360 windrows measuring 8 feet by 100 feet on their 54-acre site. This company vermicomposts 35,000 tons of organic materials each year, including yard trimmings, manure from the San Diego Zoo and Wild Animal Park, and construction and demolition debris. Rideau Regional Hospital, Perth, Ontario, Canada Officials at this 725-bed hospital, with 1000 staff members, decided to vermicompost the 825 pounds of wet organics produced each day. A pulper reduces the amount of food scraps by half, by removing the water. The beds are located in a greenhouse, which has to contend with temperatures ranging from 86F degrees to 22F below.