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Insect-based feed and fertilizer production via waste transformation for small-holders in Ghana

 

This project develops economically viable and socio-culturally accepted composting technology and practices. To achieve this objective Black Soldier Fly (BSF), Hermetia illucens L. would be used as ecological engineer in composting of the organic fraction of municipal solid waste. The BSF pre-pupae will also be used in producing fish feed in aquaculture.

​​​About the project

Background

Management of municipal solid waste (MSW) has become an important environmental challenge for municipal authorities in developing countries including Ghana. The rapid increase in urban population and the associated demand for food and jobs, have introduced various agricultural production systems in and around the major cities of West Africa such as Ghana (known as urban and peri-urban agriculture, PUA). PUA faces the problem of low productivity due to inappropriate soil fertility management strategies. Also, the aquaculture industry in Ghana is constrained by availability and affordability of good quality feed. Currently, the available imported commercial feeds are priced beyond US$1.00/kg, making the operations of the numerous small scale fish farmers unattractive and unprofitable. Small scale fish farmers prepare their own feed from kitchen wastes and agro-industrial by-products which are of low quality.

Objectives

The overall objective of the proposed project is to develop economically viable and socio-culturally accepted composting technology and practices that will transform organic fractions of municipal solid waste into high quality hygienically safe fertilizers and nutritionally rich feed components by using larvae of the Black Soldier Fly (BSF) species Hermetia illucens. To achieve the above overall objective four sub projects will be conducted in Accra. Sub project 1 aims at technological development, production and designing of guidelines for BSF-biochar composting of MSW, at coincidental development of insect larvae meal for use in fish feeds. Sub project 2 aims at assessing the impact of the use of BSF-biochar based compost on crop productivity and the environment. Sub project 3 aims at assessing the effect of the use of BSF-meal on fish productivity and quality. Sub project 4 aims at determining the economic feasibility, farmers perception and willingness to use BSF-composting and insect-meal production technologies.

Relevance

BSF composting technologies have the advantage of shortening compost maturity periods, producing dual end-products (compost fertilizer for crop production and BSF larvae for aquaculture), providing high rate of economic returns (from combined end-products), and reducing the risk in the composting industry. The technology has the potential to provide a cost effective and sustainable management of municipal solid waste (MSW), by (a) reducing substantially the volume of waste dumped on landfill sites (b) increasing the lifespan of landfills and (c) reducing the cost incurred by waste management companies and municipalities for waste haulage. BSF compost fertilizers could help regenerating the soils by returning organic material and nutrients into it, which will improve crop productivity and quality. The technology will provide sustainable jobs for the teeming unemployed youth in the Greater Accra Region and further improve livelihoods of those already engaged in organic waste recycling, urban and peri-urban agriculture, and aquaculture businesses. Finally, the general public stands to benefit positively through a cleaner urban environment.

Geographic scope

  • Gha​​na

Research consortium

Gra​​ntees 

  • Dr. Andreas Fliessbach, Research Institute of Organic Agriculture (FiBL) 
  • Dr. Noah Adamtey, Research Institute of Organic Agriculture (FiBL) 
  • Dr. Andreas Stamer, Research Institute of Organic Agriculture (FiBL) 
  • Ato Ewusie Ebenezer, Biotechnology and Nuclear Agriculture Research Institute, Accra, Ghana 
  • Agyakwah Seth Koranteng, CSIR-Water Research Institute, Akosombo, Ghana 
  • Prof. Dr. Kwabena Godfred Ofosu-Budu, Forest and Horticultural Crops Research Centre, University of Ghana, Accra, Ghana 

Partner​ships 

  • Waste Management Department, Accra Metropolitan Assembly, Ghana 
  • Ministry of Food and Agriculture, Accra, Ghana 
  • Ministry of Local Government and Rural Development, Accra, Ghana 
  • Environmental Protection Agency, Accra, Ghana​

Project information on P3

  • Link to project on SNSF research database P3

 

 

 

Further information on this content

 Contact

Dr. Andreas Fliessbach Research Institute of Organic Agriculture FiBL Ackerstrasse 113
P.O. Box 219
CH-5070 Frick +41 62 8657225 andreas.fliessbach@fibl.org