Vermicomposting as manure management strategy for urban small-holder animal farms - Kampala case study

Waste Management
Cecilia Helena LalanderBjörn Vinnerås

Abstract

Inadequate organic waste management can contribute to the spread of diseases and have negative impacts on the environment. Vermicomposting organic waste could have dual beneficial effects by generating an economically viable animal feed protein in the form of worm biomass, while alleviating the negative effects of poor organic waste management. In this study, a low-maintenance vermicomposting system was evaluated as manure and food waste management system for small-holder farmers. A vermicomposting system using the earthworm species Eudrilus eugeniae and treating cow manure and food waste was set up in Kampala, Uganda, and monitored for 172days. The material degradation and protein production rates were evaluated after 63days and at the end of the experiment. The material reduction was 45.9% and the waste-to-biomass conversion rate was 3.5% in the vermicomposting process on a total solids basis. A possible increase in the conversion rate could be achieved by increasing the frequency of worm harvesting. Vermicomposting was found to be a viable manure management method in small-scale urban animal agriculture; the return of investment was calculated to be 280% for treating the manure of a 450kg cow. The vermicompost was not saniti...Continue Reading

References

Mar 31, 2004·Bioresource Technology·Norman Q AranconJames D Metzger
Sep 20, 2005·Bioresource Technology·Payal GargSantosh Satya
Dec 9, 2008·Applied and Environmental Microbiology·Annika NordinBjörn Vinnerås
Oct 8, 2009·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Simone ManfrediHeijo Scharff
Apr 10, 2013·Tropical Animal Health and Production·Richard LumuJan Erik Lindberg
Aug 13, 2013·Waste Management·Cecilia H LalanderBjörn Vinnerås
Apr 8, 2014·Journal of the Air & Waste Management Association·Allan J KomakechBjörn Vinnerås

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Citations

Jul 10, 2016·Journal of Environmental Management·A J KomakechB Vinnerås
Nov 12, 2016·Infection Ecology & Epidemiology·Anne-Lie BlomströmSofia Boqvist
Apr 6, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Máximo Lucio Nova PinedoVincenzo Torretta
Jan 25, 2020·Environmental Geochemistry and Health·Archana SinghBalasubramani Ravindran
Feb 16, 2020·International Journal of Environmental Research and Public Health·Nqubeko Neville MenyukaUrmilla Bob
Feb 10, 2018·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Navarro FerronatoMarco Ragazzi
Dec 15, 2020·Journal of Environmental Management·Ahamada ZziwaHenry Kayondo
Aug 12, 2020·Journal of Environmental Management·Dorothee SpuhlerGuenter Langergraber

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