Abstract
In this study, municipal waste and anaerobic
digestate (bio solids) were co-vermicomposted in a bid to
properly manage waste at disposal sites. Municipal waste and bio solids in the ratio 2:1 were
vermicomposted in a
vermireactor for 45 days. Process parameters such as
moisture, temperature and pH as well as the nutrient composition in terms of nitrogen,
phosphorous and
potassium (NPK) content of the vermicompost were closely monitored. Approximately 250 Eisenia
Foetida, a species of the red worms was used as the vermicomposting inoculants. After the 45
days, a rich vermicompost with an NPK
composition of 6.18%, 3.27% and 8.26% respectively. The optimum conditions for producing this
vermicompost were moisture content>27%, temperature >18.6% and neutral pH. An addition of the bio
solids to municipal waste during
vermicomposting adds value to the nutritional composition
of the vermicompost.