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

Lalander, Cecilia and Komakech, Allan and Vinnerås, Björn (2015). Vermicomposting as manure management strategy for urban small-holder animal farms - Kampala case study. Waste Management. 39, 96-103
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Official URL: http://dx.doi.org/10.1016/j.wasman.2015.02.009

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 172 days. The material degradation and protein production rates were evaluated after 63 days 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 450 kg cow. The vermicompost was not sanitised, although hygiene quality could be improved by introducing a post-stabilisation step in which no fresh material is added. The value of the animal feed protein generated in the process can act as an incentive to improve current manure management strategies.

Authors/Creators:Lalander, Cecilia and Komakech, Allan and Vinnerås, Björn
Title:Vermicomposting as manure management strategy for urban small-holder animal farms - Kampala case study
Series/Journal:Waste Management (0956-053X)
Year of publishing :2015
Volume:39
Page range:96-103
Number of Pages:8
Publisher:Elsevier
ISSN:0956-053X
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L01 Animal husbandry
Q Food science > Q70 Processing of agricultural wastes
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 207 Environmental Engineering > Other Environmental Engineering
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Agrovoc terms:vermicomposting, urban farmers, organic wastes, management, vermiculture, hygiene, uganda
Keywords:case study, conversion rate, hygiene, mass balance, protein production, vermicompost
URN:NBN:urn:nbn:se:slu:epsilon-e-2826
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2826
Additional ID:
Type of IDID
Web of Science (WoS)000354152300012
ID Code:12476
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:06 Aug 2015 07:04
Metadata Last Modified:06 Aug 2015 07:04

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